499 files changed, 7684 insertions, 4293 deletions

diff --git a/Documentation/DocBook/media/Makefile b/Documentation/DocBook/media/Makefile
index 1d27f0a1abd1..639e74857968 100644
--- a/Documentation/DocBook/media/Makefile
+++ b/Documentation/DocBook/media/Makefile
@@ -202,8 +202,8 @@ $(MEDIA_OBJ_DIR)/%: $(MEDIA_SRC_DIR)/%.b64
 
 $(MEDIA_OBJ_DIR)/v4l2.xml: $(OBJIMGFILES)
         @$($(quiet)gen_xml)
-        @(ln -sf $(MEDIA_SRC_DIR)/v4l/*xml $(MEDIA_OBJ_DIR)/)
-        @(ln -sf $(MEDIA_SRC_DIR)/dvb/*xml $(MEDIA_OBJ_DIR)/)
+        @(ln -sf `cd $(MEDIA_SRC_DIR) && /bin/pwd`/v4l/*xml $(MEDIA_OBJ_DIR)/)
+        @(ln -sf `cd $(MEDIA_SRC_DIR) && /bin/pwd`/dvb/*xml $(MEDIA_OBJ_DIR)/)
 
 $(MEDIA_OBJ_DIR)/videodev2.h.xml: $(srctree)/include/uapi/linux/videodev2.h $(MEDIA_OBJ_DIR)/v4l2.xml
         @$($(quiet)gen_xml)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt b/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
new file mode 100644
index 000000000000..dde6c22ce91a
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
@@ -0,0 +1,42 @@
+* Rockchip RK3xxx I2C controller
+
+This driver interfaces with the native I2C controller present in Rockchip
+RK3xxx SoCs.
+
+Required properties :
+
+ - reg : Offset and length of the register set for the device
+ - compatible : should be "rockchip,rk3066-i2c", "rockchip,rk3188-i2c" or
+                "rockchip,rk3288-i2c".
+ - interrupts : interrupt number
+ - clocks : parent clock
+
+Required on RK3066, RK3188 :
+
+ - rockchip,grf : the phandle of the syscon node for the general register
+                  file (GRF)
+ - on those SoCs an alias with the correct I2C bus ID (bit offset in the GRF)
+   is also required.
+
+Optional properties :
+
+ - clock-frequency : SCL frequency to use (in Hz). If omitted, 100kHz is used.
+
+Example:
+
+aliases {
+        i2c0 = &i2c0;
+}
+
+i2c0: i2c@2002d000 {
+        compatible = "rockchip,rk3188-i2c";
+        reg = <0x2002d000 0x1000>;
+        interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        rockchip,grf = <&grf>;
+
+        clock-names = "i2c";
+        clocks = <&cru PCLK_I2C0>;
+};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sunxi-p2wi.txt b/Documentation/devicetree/bindings/i2c/i2c-sunxi-p2wi.txt
new file mode 100644
index 000000000000..6b765485af7d
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-sunxi-p2wi.txt
@@ -0,0 +1,41 @@
+
+* Allwinner P2WI (Push/Pull 2 Wire Interface) controller
+
+Required properties :
+
+ - reg             : Offset and length of the register set for the device.
+ - compatible      : Should one of the following:
+                     - "allwinner,sun6i-a31-p2wi"
+ - interrupts      : The interrupt line connected to the P2WI peripheral.
+ - clocks          : The gate clk connected to the P2WI peripheral.
+ - resets          : The reset line connected to the P2WI peripheral.
+
+Optional properties :
+
+ - clock-frequency : Desired P2WI bus clock frequency in Hz. If not set the
+default frequency is 100kHz
+
+A P2WI may contain one child node encoding a P2WI slave device.
+
+Slave device properties:
+  Required properties:
+   - reg           : the I2C slave address used during the initialization
+                     process to switch from I2C to P2WI mode
+
+Example:
+
+        p2wi@01f03400 {
+                compatible = "allwinner,sun6i-a31-p2wi";
+                reg = <0x01f03400 0x400>;
+                interrupts = <0 39 4>;
+                clocks = <&apb0_gates 3>;
+                clock-frequency = <6000000>;
+                resets = <&apb0_rst 3>;
+
+                axp221: pmic@68 {
+                        compatible = "x-powers,axp221";
+                        reg = <0x68>;
+
+                        /* ... */
+                };
+        };
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index d567a7cc552b..c600e2f44a62 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -1171,7 +1171,7 @@ When kbuild executes, the following steps are followed (roughly):
               obvious reason.
 
     dtc
-        Create flattend device tree blob object suitable for linking
+        Create flattened device tree blob object suitable for linking
         into vmlinux. Device tree blobs linked into vmlinux are placed
         in an init section in the image. Platform code *must* copy the
         blob to non-init memory prior to calling unflatten_device_tree().
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 6eaa9cdb7094..884904975d0b 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1474,6 +1474,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
         js=             [HW,JOY] Analog joystick
                         See Documentation/input/joystick.txt.
 
+        kaslr/nokaslr   [X86]
+                        Enable/disable kernel and module base offset ASLR
+                        (Address Space Layout Randomization) if built into
+                        the kernel. When CONFIG_HIBERNATION is selected,
+                        kASLR is disabled by default. When kASLR is enabled,
+                        hibernation will be disabled.
+
         keepinitrd      [HW,ARM]
 
         kernelcore=nn[KMG]      [KNL,X86,IA-64,PPC] This parameter
@@ -2110,10 +2117,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
         noapic          [SMP,APIC] Tells the kernel to not make use of any
                         IOAPICs that may be present in the system.
 
-        nokaslr         [X86]
-                        Disable kernel and module base offset ASLR (Address
-                        Space Layout Randomization) if built into the kernel.
-
         noautogroup     Disable scheduler automatic task group creation.
 
         nobats          [PPC] Do not use BATs for mapping kernel lowmem
@@ -2184,6 +2187,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         in certain environments such as networked servers or
                         real-time systems.
 
+        nohibernate     [HIBERNATION] Disable hibernation and resume.
+
         nohz=           [KNL] Boottime enable/disable dynamic ticks
                         Valid arguments: on, off
                         Default: on
@@ -2980,6 +2985,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                 noresume        Don't check if there's a hibernation image
                                 present during boot.
                 nocompress      Don't compress/decompress hibernation images.
+                no              Disable hibernation and resume.
 
         retain_initrd   [RAM] Keep initrd memory after extraction
 
diff --git a/Documentation/thermal/nouveau_thermal b/Documentation/thermal/nouveau_thermal
index efceb7828f54..60bc29357ac3 100644
--- a/Documentation/thermal/nouveau_thermal
+++ b/Documentation/thermal/nouveau_thermal
@@ -4,7 +4,7 @@ Kernel driver nouveau
 Supported chips:
 * NV43+
 
-Authors: Martin Peres (mupuf) <martin.peres@labri.fr>
+Authors: Martin Peres (mupuf) <martin.peres@free.fr>
 
 Description
 ---------
@@ -68,8 +68,9 @@ Your fan can be driven in different modes:
 
 NOTE: Be sure to use the manual mode if you want to drive the fan speed manually
 
-NOTE2: Not all fan management modes may be supported on all chipsets. We are
-working on it.
+NOTE2: When operating in manual mode outside the vbios-defined
+[PWM_min, PWM_max] range, the reported fan speed (RPM) may not be accurate
+depending on your hardware.
 
 Bug reports
 ---------
diff --git a/MAINTAINERS b/MAINTAINERS
index 7c291d13182c..1a3564dddcb7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6960,7 +6960,7 @@ PKUNITY SOC DRIVERS
 M:      Guan Xuetao <gxt@mprc.pku.edu.cn>
 W:      http://mprc.pku.edu.cn/~guanxuetao/linux
 S:      Maintained
-T:      git git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32.git
+T:      git git://github.com/gxt/linux.git
 F:      drivers/input/serio/i8042-unicore32io.h
 F:      drivers/i2c/busses/i2c-puv3.c
 F:      drivers/video/fb-puv3.c
@@ -7948,6 +7948,7 @@ F:	drivers/mmc/host/sdhci-spear.c
 
 SECURITY SUBSYSTEM
 M:      James Morris <james.l.morris@oracle.com>
+M:      Serge E. Hallyn <serge@hallyn.com>
 L:      linux-security-module@vger.kernel.org (suggested Cc:)
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git
 W:      http://kernsec.org/
@@ -9268,7 +9269,7 @@ UNICORE32 ARCHITECTURE:
 M:      Guan Xuetao <gxt@mprc.pku.edu.cn>
 W:      http://mprc.pku.edu.cn/~guanxuetao/linux
 S:      Maintained
-T:      git git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32.git
+T:      git git://github.com/gxt/linux.git
 F:      arch/unicore32/
 
 UNIFDEF
@@ -9735,6 +9736,14 @@ L:	virtualization@lists.linux-foundation.org
 S:      Supported
 F:      arch/x86/kernel/cpu/vmware.c
 
+VMWARE BALLOON DRIVER
+M:      Xavier Deguillard <xdeguillard@vmware.com>
+M:      Philip Moltmann <moltmann@vmware.com>
+M:      "VMware, Inc." <pv-drivers@vmware.com>
+L:      linux-kernel@vger.kernel.org
+S:      Maintained
+F:      drivers/misc/vmw_balloon.c
+
 VMWARE VMXNET3 ETHERNET DRIVER
 M:      Shreyas Bhatewara <sbhatewara@vmware.com>
 M:      "VMware, Inc." <pv-drivers@vmware.com>
diff --git a/Makefile b/Makefile
index 97b286128c1e..b11e2d504a00 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 16
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
 NAME = Shuffling Zombie Juror
 
 # *DOCUMENTATION*
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 87b63fde06d7..245058b3b0ef 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -175,13 +175,6 @@ config ARCH_HAS_ILOG2_U32
 config ARCH_HAS_ILOG2_U64
         bool
 
-config ARCH_HAS_CPUFREQ
-        bool
-        help
-          Internal node to signify that the ARCH has CPUFREQ support
-          and that the relevant menu configurations are displayed for
-          it.
-
 config ARCH_HAS_BANDGAP
         bool
 
@@ -318,7 +311,6 @@ config ARCH_MULTIPLATFORM
 
 config ARCH_INTEGRATOR
         bool "ARM Ltd. Integrator family"
-        select ARCH_HAS_CPUFREQ
         select ARM_AMBA
         select ARM_PATCH_PHYS_VIRT
         select AUTO_ZRELADDR
@@ -538,7 +530,6 @@ config ARCH_DOVE
 
 config ARCH_KIRKWOOD
         bool "Marvell Kirkwood"
-        select ARCH_HAS_CPUFREQ
         select ARCH_REQUIRE_GPIOLIB
         select CPU_FEROCEON
         select GENERIC_CLOCKEVENTS
@@ -637,7 +628,6 @@ config ARCH_LPC32XX
 config ARCH_PXA
         bool "PXA2xx/PXA3xx-based"
         depends on MMU
-        select ARCH_HAS_CPUFREQ
         select ARCH_MTD_XIP
         select ARCH_REQUIRE_GPIOLIB
         select ARM_CPU_SUSPEND if PM
@@ -707,7 +697,6 @@ config ARCH_RPC
 
 config ARCH_SA1100
         bool "SA1100-based"
-        select ARCH_HAS_CPUFREQ
         select ARCH_MTD_XIP
         select ARCH_REQUIRE_GPIOLIB
         select ARCH_SPARSEMEM_ENABLE
@@ -725,7 +714,6 @@ config ARCH_SA1100
 
 config ARCH_S3C24XX
         bool "Samsung S3C24XX SoCs"
-        select ARCH_HAS_CPUFREQ
         select ARCH_REQUIRE_GPIOLIB
         select ATAGS
         select CLKDEV_LOOKUP
@@ -746,7 +734,6 @@ config ARCH_S3C24XX
 
 config ARCH_S3C64XX
         bool "Samsung S3C64XX"
-        select ARCH_HAS_CPUFREQ
         select ARCH_REQUIRE_GPIOLIB
         select ARM_AMBA
         select ARM_VIC
@@ -809,7 +796,6 @@ config ARCH_S5PC100
 
 config ARCH_S5PV210
         bool "Samsung S5PV210/S5PC110"
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_HOLES_MEMORYMODEL
         select ARCH_SPARSEMEM_ENABLE
         select ATAGS
@@ -845,7 +831,6 @@ config ARCH_DAVINCI
 config ARCH_OMAP1
         bool "TI OMAP1"
         depends on MMU
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_HOLES_MEMORYMODEL
         select ARCH_OMAP
         select ARCH_REQUIRE_GPIOLIB
@@ -1009,8 +994,6 @@ source "arch/arm/mach-rockchip/Kconfig"
 
 source "arch/arm/mach-sa1100/Kconfig"
 
-source "arch/arm/plat-samsung/Kconfig"
-
 source "arch/arm/mach-socfpga/Kconfig"
 
 source "arch/arm/mach-spear/Kconfig"
@@ -1028,6 +1011,7 @@ source "arch/arm/mach-s5pc100/Kconfig"
 source "arch/arm/mach-s5pv210/Kconfig"
 
 source "arch/arm/mach-exynos/Kconfig"
+source "arch/arm/plat-samsung/Kconfig"
 
 source "arch/arm/mach-shmobile/Kconfig"
 
@@ -2109,9 +2093,7 @@ endmenu
 
 menu "CPU Power Management"
 
-if ARCH_HAS_CPUFREQ
 source "drivers/cpufreq/Kconfig"
-endif
 
 source "drivers/cpuidle/Kconfig"
 
diff --git a/arch/arm/boot/dts/armada-375-db.dts b/arch/arm/boot/dts/armada-375-db.dts
index 772fec2d26ce..1e2919d43d78 100644
--- a/arch/arm/boot/dts/armada-375-db.dts
+++ b/arch/arm/boot/dts/armada-375-db.dts
@@ -91,6 +91,8 @@
                                 marvell,nand-keep-config;
                                 marvell,nand-enable-arbiter;
                                 nand-on-flash-bbt;
+                                nand-ecc-strength = <4>;
+                                nand-ecc-step-size = <512>;
 
                                 partition@0 {
                                         label = "U-Boot";
diff --git a/arch/arm/boot/dts/armada-385-db.dts b/arch/arm/boot/dts/armada-385-db.dts
index ff9637dd8d0f..5bae4731828b 100644
--- a/arch/arm/boot/dts/armada-385-db.dts
+++ b/arch/arm/boot/dts/armada-385-db.dts
@@ -98,6 +98,8 @@
                                 marvell,nand-keep-config;
                                 marvell,nand-enable-arbiter;
                                 nand-on-flash-bbt;
+                                nand-ecc-strength = <4>;
+                                nand-ecc-step-size = <512>;
 
                                 partition@0 {
                                         label = "U-Boot";
diff --git a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
index e5c6a0492ca0..4e5a59ee1501 100644
--- a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
+++ b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
@@ -25,7 +25,7 @@
 
         memory {
                 device_type = "memory";
-                reg = <0 0x00000000 0 0xC0000000>; /* 3 GB */
+                reg = <0 0x00000000 0 0x40000000>; /* 1 GB soldered on */
         };
 
         soc {
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index e2d62048e198..17d9462b9fb9 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -300,6 +300,7 @@ CONFIG_MMC=y
 CONFIG_MMC_BLOCK_MINORS=16
 CONFIG_MMC_ARMMMCI=y
 CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_SDHCI_OF_ARASAN=y
 CONFIG_MMC_SDHCI_ESDHC_IMX=y
 CONFIG_MMC_SDHCI_DOVE=y
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 59066cf0271a..536a137863cb 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -32,6 +32,7 @@ CONFIG_SOC_OMAP5=y
 CONFIG_SOC_AM33XX=y
 CONFIG_SOC_AM43XX=y
 CONFIG_SOC_DRA7XX=y
+CONFIG_CACHE_L2X0=y
 CONFIG_ARM_THUMBEE=y
 CONFIG_ARM_ERRATA_411920=y
 CONFIG_SMP=y
diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
index eb577f4f5f70..39eb16b0066f 100644
--- a/arch/arm/include/asm/ftrace.h
+++ b/arch/arm/include/asm/ftrace.h
@@ -52,7 +52,7 @@ extern inline void *return_address(unsigned int level)
 
 #endif
 
-#define ftrace_return_addr(n) return_address(n)
+#define ftrace_return_address(n) return_address(n)
 
 #endif /* ifndef __ASSEMBLY__ */
 
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 9bc6db1c1348..41c839167e87 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -1,10 +1,9 @@
-config ARCH_BCM
+menuconfig ARCH_BCM
         bool "Broadcom SoC Support" if ARCH_MULTI_V6_V7
         help
           This enables support for Broadcom ARM based SoC chips
 
-menu "Broadcom SoC Selection"
-        depends on ARCH_BCM
+if ARCH_BCM
 
 config ARCH_BCM_MOBILE
         bool "Broadcom Mobile SoC Support" if ARCH_MULTI_V7
@@ -88,4 +87,4 @@ config ARCH_BCM_5301X
           different SoC or with the older BCM47XX and BCM53XX based
           network SoC using a MIPS CPU, they are supported by arch/mips/bcm47xx
 
-endmenu
+endif
diff --git a/arch/arm/mach-berlin/Kconfig b/arch/arm/mach-berlin/Kconfig
index 101e0f356730..2631cfc5ab0d 100644
--- a/arch/arm/mach-berlin/Kconfig
+++ b/arch/arm/mach-berlin/Kconfig
@@ -1,4 +1,4 @@
-config ARCH_BERLIN
+menuconfig ARCH_BERLIN
         bool "Marvell Berlin SoCs" if ARCH_MULTI_V7
         select ARCH_REQUIRE_GPIOLIB
         select ARM_GIC
@@ -9,8 +9,6 @@ config ARCH_BERLIN
 
 if ARCH_BERLIN
 
-menu "Marvell Berlin SoC variants"
-
 config MACH_BERLIN_BG2
         bool "Marvell Armada 1500 (BG2)"
         select CACHE_L2X0
@@ -30,6 +28,4 @@ config MACH_BERLIN_BG2Q
         select HAVE_ARM_TWD if SMP
         select PINCTRL_BERLIN_BG2Q
 
-endmenu
-
 endif
diff --git a/arch/arm/mach-cns3xxx/Kconfig b/arch/arm/mach-cns3xxx/Kconfig
index 66838f42037f..3c22a1990ecd 100644
--- a/arch/arm/mach-cns3xxx/Kconfig
+++ b/arch/arm/mach-cns3xxx/Kconfig
@@ -1,12 +1,11 @@
-config ARCH_CNS3XXX
+menuconfig ARCH_CNS3XXX
         bool "Cavium Networks CNS3XXX family" if ARCH_MULTI_V6
         select ARM_GIC
         select PCI_DOMAINS if PCI
         help
           Support for Cavium Networks CNS3XXX platform.
 
-menu "CNS3XXX platform type"
-        depends on ARCH_CNS3XXX
+if ARCH_CNS3XXX
 
 config MACH_CNS3420VB
         bool "Support for CNS3420 Validation Board"
@@ -17,4 +16,4 @@ config MACH_CNS3420VB
           This is a platform with an on-board ARM11 MPCore and has support
           for USB, USB-OTG, MMC/SD/SDIO, SATA, PCI-E, etc.
 
-endmenu
+endif
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index db18ef866593..584e8d4e2892 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -39,7 +39,6 @@ config ARCH_DAVINCI_DA830
 config ARCH_DAVINCI_DA850
         bool "DA850/OMAP-L138/AM18x based system"
         select ARCH_DAVINCI_DA8XX
-        select ARCH_HAS_CPUFREQ
         select CP_INTC
 
 config ARCH_DAVINCI_DA8XX
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index d58995c9a95a..8f9b66c4ac78 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -7,10 +7,9 @@
 
 # Configuration options for the EXYNOS4
 
-config ARCH_EXYNOS
+menuconfig ARCH_EXYNOS
         bool "Samsung EXYNOS" if ARCH_MULTI_V7
         select ARCH_HAS_BANDGAP
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_HOLES_MEMORYMODEL
         select ARCH_REQUIRE_GPIOLIB
         select ARM_AMBA
@@ -30,8 +29,6 @@ config ARCH_EXYNOS
 
 if ARCH_EXYNOS
 
-menu "SAMSUNG EXYNOS SoCs Support"
-
 config ARCH_EXYNOS3
         bool "SAMSUNG EXYNOS3"
         select ARM_CPU_SUSPEND if PM
@@ -118,8 +115,6 @@ config SOC_EXYNOS5800
         default y
         depends on SOC_EXYNOS5420
 
-endmenu
-
 config EXYNOS5420_MCPM
         bool "Exynos5420 Multi-Cluster PM support"
         depends on MCPM && SOC_EXYNOS5420
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 16617bdb37a9..1ee91763fa7c 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -118,6 +118,7 @@ extern void __iomem *sysram_ns_base_addr;
 extern void __iomem *sysram_base_addr;
 void exynos_init_io(void);
 void exynos_restart(enum reboot_mode mode, const char *cmd);
+void exynos_sysram_init(void);
 void exynos_cpuidle_init(void);
 void exynos_cpufreq_init(void);
 void exynos_init_late(void);
diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 90aab4d75d08..f38cf7c110cc 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -184,6 +184,28 @@ void __init exynos_cpufreq_init(void)
         platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);
 }
 
+void __iomem *sysram_base_addr;
+void __iomem *sysram_ns_base_addr;
+
+void __init exynos_sysram_init(void)
+{
+        struct device_node *node;
+
+        for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram") {
+                if (!of_device_is_available(node))
+                        continue;
+                sysram_base_addr = of_iomap(node, 0);
+                break;
+        }
+
+        for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram-ns") {
+                if (!of_device_is_available(node))
+                        continue;
+                sysram_ns_base_addr = of_iomap(node, 0);
+                break;
+        }
+}
+
 void __init exynos_init_late(void)
 {
         if (of_machine_is_compatible("samsung,exynos5440"))
@@ -198,7 +220,7 @@ static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
                                         int depth, void *data)
 {
         struct map_desc iodesc;
-        __be32 *reg;
+        const __be32 *reg;
         int len;
 
         if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid") &&
@@ -271,6 +293,13 @@ static void __init exynos_dt_machine_init(void)
                 }
         }
 
+        /*
+         * This is called from smp_prepare_cpus if we've built for SMP, but
+         * we still need to set it up for PM and firmware ops if not.
+         */
+        if (!IS_ENABLED(SMP))
+                exynos_sysram_init();
+
         exynos_cpuidle_init();
         exynos_cpufreq_init();
 
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index ec02422e8499..1c8d31e39520 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -32,28 +32,6 @@
 
 extern void exynos4_secondary_startup(void);
 
-void __iomem *sysram_base_addr;
-void __iomem *sysram_ns_base_addr;
-
-static void __init exynos_smp_prepare_sysram(void)
-{
-        struct device_node *node;
-
-        for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram") {
-                if (!of_device_is_available(node))
-                        continue;
-                sysram_base_addr = of_iomap(node, 0);
-                break;
-        }
-
-        for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram-ns") {
-                if (!of_device_is_available(node))
-                        continue;
-                sysram_ns_base_addr = of_iomap(node, 0);
-                break;
-        }
-}
-
 static inline void __iomem *cpu_boot_reg_base(void)
 {
         if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_1_1)
@@ -234,11 +212,11 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
 {
         int i;
 
+        exynos_sysram_init();
+
         if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9)
                 scu_enable(scu_base_addr());
 
-        exynos_smp_prepare_sysram();
-
         /*
          * Write the address of secondary startup into the
          * system-wide flags register. The boot monitor waits
diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig
index 830b76e70250..a5960e2ac090 100644
--- a/arch/arm/mach-highbank/Kconfig
+++ b/arch/arm/mach-highbank/Kconfig
@@ -1,7 +1,6 @@
 config ARCH_HIGHBANK
         bool "Calxeda ECX-1000/2000 (Highbank/Midway)" if ARCH_MULTI_V7
         select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_HOLES_MEMORYMODEL
         select ARCH_HAS_OPP
         select ARCH_SUPPORTS_BIG_ENDIAN
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 8d42eab76d53..28fa2fa49e5d 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -1,6 +1,5 @@
-config ARCH_MXC
+menuconfig ARCH_MXC
         bool "Freescale i.MX family" if ARCH_MULTI_V4_V5 || ARCH_MULTI_V6_V7
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_OPP
         select ARCH_REQUIRE_GPIOLIB
         select ARM_CPU_SUSPEND if PM
@@ -13,8 +12,7 @@ config ARCH_MXC
         help
           Support for Freescale MXC/iMX-based family of processors
 
-menu "Freescale i.MX support"
-        depends on ARCH_MXC
+if ARCH_MXC
 
 config MXC_TZIC
         bool
@@ -99,7 +97,6 @@ config SOC_IMX25
 
 config SOC_IMX27
         bool
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_OPP
         select CPU_ARM926T
         select IMX_HAVE_IOMUX_V1
@@ -124,7 +121,6 @@ config SOC_IMX35
 
 config SOC_IMX5
         bool
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_OPP
         select ARCH_MXC_IOMUX_V3
         select MXC_TZIC
@@ -786,4 +782,4 @@ endif
 
 source "arch/arm/mach-imx/devices/Kconfig"
 
-endmenu
+endif
diff --git a/arch/arm/mach-integrator/Kconfig b/arch/arm/mach-integrator/Kconfig
index ba43321001d8..64f8e2564a37 100644
--- a/arch/arm/mach-integrator/Kconfig
+++ b/arch/arm/mach-integrator/Kconfig
@@ -28,7 +28,7 @@ config ARCH_CINTEGRATOR
         bool
 
 config INTEGRATOR_IMPD1
-        tristate "Include support for Integrator/IM-PD1"
+        bool "Include support for Integrator/IM-PD1"
         depends on ARCH_INTEGRATOR_AP
         select ARCH_REQUIRE_GPIOLIB
         select ARM_VIC
diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c
index 0e870ea818c4..3ce880729cff 100644
--- a/arch/arm/mach-integrator/impd1.c
+++ b/arch/arm/mach-integrator/impd1.c
@@ -308,7 +308,12 @@ static struct impd1_device impd1_devs[] = {
  */
 #define IMPD1_VALID_IRQS 0x00000bffU
 
-static int __init impd1_probe(struct lm_device *dev)
+/*
+ * As this module is bool, it is OK to have this as __init_refok() - no
+ * probe calls will be done after the initial system bootup, as devices
+ * are discovered as part of the machine startup.
+ */
+static int __init_refok impd1_probe(struct lm_device *dev)
 {
         struct impd1_module *impd1;
         int irq_base;
@@ -397,6 +402,11 @@ static void impd1_remove(struct lm_device *dev)
 static struct lm_driver impd1_driver = {
         .drv = {
                 .name   = "impd1",
+                /*
+                 * As we're dropping the probe() function, suppress driver
+                 * binding from sysfs.
+                 */
+                .suppress_bind_attrs = true,
         },
         .probe          = impd1_probe,
         .remove         = impd1_remove,
diff --git a/arch/arm/mach-keystone/Kconfig b/arch/arm/mach-keystone/Kconfig
index f50bc936cb84..98a156afaa94 100644
--- a/arch/arm/mach-keystone/Kconfig
+++ b/arch/arm/mach-keystone/Kconfig
@@ -1,6 +1,7 @@
 config ARCH_KEYSTONE
         bool "Texas Instruments Keystone Devices"
         depends on ARCH_MULTI_V7
+        depends on ARM_PATCH_PHYS_VIRT
         select ARM_GIC
         select HAVE_ARM_ARCH_TIMER
         select CLKSRC_MMIO
diff --git a/arch/arm/mach-moxart/Kconfig b/arch/arm/mach-moxart/Kconfig
index 82a4ba8578a2..f49328c39bef 100644
--- a/arch/arm/mach-moxart/Kconfig
+++ b/arch/arm/mach-moxart/Kconfig
@@ -1,4 +1,4 @@
-config ARCH_MOXART
+menuconfig ARCH_MOXART
         bool "MOXA ART SoC" if ARCH_MULTI_V4
         select CPU_FA526
         select ARM_DMA_MEM_BUFFERABLE
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 6090b9eb00c8..4a7c250c9a30 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -1,4 +1,4 @@
-config ARCH_MVEBU
+menuconfig ARCH_MVEBU
         bool "Marvell Engineering Business Unit (MVEBU) SoCs" if (ARCH_MULTI_V7 || ARCH_MULTI_V5)
         select ARCH_SUPPORTS_BIG_ENDIAN
         select CLKSRC_MMIO
@@ -13,8 +13,6 @@ config ARCH_MVEBU
 
 if ARCH_MVEBU
 
-menu "Marvell EBU SoC variants"
-
 config MACH_MVEBU_V7
         bool
         select ARMADA_370_XP_TIMER
@@ -84,7 +82,6 @@ config MACH_DOVE
 
 config MACH_KIRKWOOD
         bool "Marvell Kirkwood boards" if ARCH_MULTI_V5
-        select ARCH_HAS_CPUFREQ
         select ARCH_REQUIRE_GPIOLIB
         select CPU_FEROCEON
         select KIRKWOOD_CLK
@@ -97,6 +94,4 @@ config MACH_KIRKWOOD
           Say 'Y' here if you want your kernel to support boards based
           on the Marvell Kirkwood device tree.
 
-endmenu
-
 endif
diff --git a/arch/arm/mach-nomadik/Kconfig b/arch/arm/mach-nomadik/Kconfig
index 486d301f43fd..3c61096c8627 100644
--- a/arch/arm/mach-nomadik/Kconfig
+++ b/arch/arm/mach-nomadik/Kconfig
@@ -1,4 +1,4 @@
-config ARCH_NOMADIK
+menuconfig ARCH_NOMADIK
         bool "ST-Ericsson Nomadik"
         depends on ARCH_MULTI_V5
         select ARCH_REQUIRE_GPIOLIB
@@ -15,7 +15,6 @@ config ARCH_NOMADIK
           Support for the Nomadik platform by ST-Ericsson
 
 if ARCH_NOMADIK
-menu "Nomadik boards"
 
 config MACH_NOMADIK_8815NHK
         bool "ST 8815 Nomadik Hardware Kit (evaluation board)"
@@ -24,7 +23,6 @@ config MACH_NOMADIK_8815NHK
         select I2C_ALGOBIT
         select I2C_NOMADIK
 
-endmenu
 endif
 
 config NOMADIK_8815
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 0ba482638ebf..062505345c95 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -1,3 +1,6 @@
+menu "TI OMAP/AM/DM/DRA Family"
+        depends on ARCH_MULTI_V6 || ARCH_MULTI_V7
+
 config ARCH_OMAP
         bool
 
@@ -28,7 +31,6 @@ config ARCH_OMAP4
         select ARM_CPU_SUSPEND if PM
         select ARM_ERRATA_720789
         select ARM_GIC
-        select CACHE_L2X0
         select HAVE_ARM_SCU if SMP
         select HAVE_ARM_TWD if SMP
         select OMAP_INTERCONNECT
@@ -80,7 +82,6 @@ config SOC_DRA7XX
 config ARCH_OMAP2PLUS
         bool
         select ARCH_HAS_BANDGAP
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_HOLES_MEMORYMODEL
         select ARCH_OMAP
         select ARCH_REQUIRE_GPIOLIB
@@ -343,3 +344,5 @@ config OMAP4_ERRATA_I688
 endmenu
 
 endif
+
+endmenu
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index ff029737c8f0..a373d508799a 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -91,7 +91,14 @@ extern void omap3_sync32k_timer_init(void);
 extern void omap3_secure_sync32k_timer_init(void);
 extern void omap3_gptimer_timer_init(void);
 extern void omap4_local_timer_init(void);
+#ifdef CONFIG_CACHE_L2X0
 int omap_l2_cache_init(void);
+#else
+static inline int omap_l2_cache_init(void)
+{
+        return 0;
+}
+#endif
 extern void omap5_realtime_timer_init(void);
 
 void omap2420_init_early(void);
diff --git a/arch/arm/mach-prima2/Kconfig b/arch/arm/mach-prima2/Kconfig
index e4e505f52ba0..042f693ef423 100644
--- a/arch/arm/mach-prima2/Kconfig
+++ b/arch/arm/mach-prima2/Kconfig
@@ -1,4 +1,4 @@
-config ARCH_SIRF
+menuconfig ARCH_SIRF
         bool "CSR SiRF" if ARCH_MULTI_V7
         select ARCH_HAS_RESET_CONTROLLER
         select ARCH_REQUIRE_GPIOLIB
@@ -11,7 +11,7 @@ config ARCH_SIRF
 
 if ARCH_SIRF
 
-menu "CSR SiRF atlas6/primaII/Marco/Polo Specific Features"
+comment "CSR SiRF atlas6/primaII/Marco/Polo Specific Features"
 
 config ARCH_ATLAS6
         bool "CSR SiRFSoC ATLAS6 ARM Cortex A9 Platform"
@@ -37,8 +37,6 @@ config ARCH_MARCO
         help
           Support for CSR SiRFSoC ARM Cortex A9 Platform
 
-endmenu
-
 config SIRF_IRQ
         bool
 
diff --git a/arch/arm/mach-qcom/Kconfig b/arch/arm/mach-qcom/Kconfig
index fd2b99dceb89..ee5697ba05bc 100644
--- a/arch/arm/mach-qcom/Kconfig
+++ b/arch/arm/mach-qcom/Kconfig
@@ -1,4 +1,4 @@
-config ARCH_QCOM
+menuconfig ARCH_QCOM
         bool "Qualcomm Support" if ARCH_MULTI_V7
         select ARCH_REQUIRE_GPIOLIB
         select ARM_GIC
@@ -11,8 +11,6 @@ config ARCH_QCOM
 
 if ARCH_QCOM
 
-menu "Qualcomm SoC Selection"
-
 config ARCH_MSM8X60
         bool "Enable support for MSM8X60"
         select CLKSRC_QCOM
@@ -25,8 +23,6 @@ config ARCH_MSM8974
         bool "Enable support for MSM8974"
         select HAVE_ARM_ARCH_TIMER
 
-endmenu
-
 config QCOM_SCM
         bool
 
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 04284de7aca5..ad5316ae524e 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -117,7 +117,7 @@ config S3C24XX_SETUP_TS
           Compile in platform device definition for Samsung TouchScreen.
 
 config S3C24XX_DMA
-        bool "S3C2410 DMA support"
+        bool "S3C2410 DMA support (deprecated)"
         select S3C_DMA
         help
           S3C2410 DMA support. This is needed for drivers like sound which
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index 3136d86b0d6e..26ca2427e53d 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -18,9 +18,9 @@ config CPU_S3C6410
           Enable S3C6410 CPU support
 
 config S3C64XX_PL080
-        bool "S3C64XX DMA using generic PL08x driver"
+        def_bool DMADEVICES
+        select ARM_AMBA
         select AMBA_PL08X
-        select SAMSUNG_DMADEV
 
 config S3C64XX_SETUP_SDHCI
         bool
diff --git a/arch/arm/mach-s5p64x0/Kconfig b/arch/arm/mach-s5p64x0/Kconfig
index bb2111b3751e..26003e23796d 100644
--- a/arch/arm/mach-s5p64x0/Kconfig
+++ b/arch/arm/mach-s5p64x0/Kconfig
@@ -9,16 +9,18 @@ if ARCH_S5P64X0
 
 config CPU_S5P6440
         bool
+        select ARM_AMBA
+        select PL330_DMA if DMADEVICES
         select S5P_SLEEP if PM
-        select SAMSUNG_DMADEV
         select SAMSUNG_WAKEMASK if PM
         help
           Enable S5P6440 CPU support
 
 config CPU_S5P6450
         bool
+        select ARM_AMBA
+        select PL330_DMA if DMADEVICES
         select S5P_SLEEP if PM
-        select SAMSUNG_DMADEV
         select SAMSUNG_WAKEMASK if PM
         help
           Enable S5P6450 CPU support
diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig
index 15170be97a74..c5e3a969b063 100644
--- a/arch/arm/mach-s5pc100/Kconfig
+++ b/arch/arm/mach-s5pc100/Kconfig
@@ -9,8 +9,9 @@ if ARCH_S5PC100
 
 config CPU_S5PC100
         bool
+        select ARM_AMBA
+        select PL330_DMA if DMADEVICES
         select S5P_EXT_INT
-        select SAMSUNG_DMADEV
         help
           Enable S5PC100 CPU support
 
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index 8c3abe521757..f60f2862856d 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -11,10 +11,11 @@ if ARCH_S5PV210
 
 config CPU_S5PV210
         bool
+        select ARM_AMBA
+        select PL330_DMA if DMADEVICES
         select S5P_EXT_INT
         select S5P_PM if PM
         select S5P_SLEEP if PM
-        select SAMSUNG_DMADEV
         help
           Enable S5PV210 CPU support
 
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index dbd954e61aa7..798073057e51 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -1,7 +1,7 @@
 config ARCH_SHMOBILE
         bool
 
-config ARCH_SHMOBILE_MULTI
+menuconfig ARCH_SHMOBILE_MULTI
         bool "Renesas ARM SoCs" if ARCH_MULTI_V7
         depends on MMU
         select ARCH_SHMOBILE
@@ -15,7 +15,7 @@ config ARCH_SHMOBILE_MULTI
 
 if ARCH_SHMOBILE_MULTI
 
-comment "Renesas ARM SoCs System Type"
+#comment "Renesas ARM SoCs System Type"
 
 config ARCH_EMEV2
         bool "Emma Mobile EV2"
@@ -85,7 +85,6 @@ config ARCH_R8A73A4
         select CPU_V7
         select SH_CLK_CPG
         select RENESAS_IRQC
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_OPP
         select SYS_SUPPORTS_SH_CMT
         select SYS_SUPPORTS_SH_TMU
@@ -264,7 +263,6 @@ config MACH_KOELSCH
 config MACH_KZM9G
         bool "KZM-A9-GT board"
         depends on ARCH_SH73A0
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_OPP
         select ARCH_REQUIRE_GPIOLIB
         select REGULATOR_FIXED_VOLTAGE if REGULATOR
diff --git a/arch/arm/mach-spear/Kconfig b/arch/arm/mach-spear/Kconfig
index 0786249b2832..90df2022276a 100644
--- a/arch/arm/mach-spear/Kconfig
+++ b/arch/arm/mach-spear/Kconfig
@@ -14,7 +14,6 @@ if PLAT_SPEAR
 config ARCH_SPEAR13XX
         bool "ST SPEAr13xx"
         depends on ARCH_MULTI_V7 || PLAT_SPEAR_SINGLE
-        select ARCH_HAS_CPUFREQ
         select ARM_GIC
         select GPIO_SPEAR_SPICS
         select HAVE_ARM_SCU if SMP
diff --git a/arch/arm/mach-sti/Kconfig b/arch/arm/mach-sti/Kconfig
index abf9ee9bbc3f..7e33e9d2c42e 100644
--- a/arch/arm/mach-sti/Kconfig
+++ b/arch/arm/mach-sti/Kconfig
@@ -1,5 +1,5 @@
 menuconfig ARCH_STI
-        bool "STMicroelectronics Consumer Electronics SOCs with Device Trees" if ARCH_MULTI_V7
+        bool "STMicroelectronics Consumer Electronics SOCs" if ARCH_MULTI_V7
         select ARM_GIC
         select ARM_GLOBAL_TIMER
         select PINCTRL
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index e16999e5b735..095399618ca5 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -1,6 +1,5 @@
-config ARCH_TEGRA
+menuconfig ARCH_TEGRA
         bool "NVIDIA Tegra" if ARCH_MULTI_V7
-        select ARCH_HAS_CPUFREQ
         select ARCH_REQUIRE_GPIOLIB
         select ARCH_SUPPORTS_TRUSTED_FOUNDATIONS
         select ARM_GIC
@@ -16,8 +15,7 @@ config ARCH_TEGRA
         help
           This enables support for NVIDIA Tegra based systems.
 
-menu "NVIDIA Tegra options"
-        depends on ARCH_TEGRA
+if ARCH_TEGRA
 
 config ARCH_TEGRA_2x_SOC
         bool "Enable support for Tegra20 family"
@@ -69,4 +67,4 @@ config TEGRA_AHB
           which controls AHB bus master arbitration and some
           performance parameters(priority, prefech size).
 
-endmenu
+endif
diff --git a/arch/arm/mach-u300/Kconfig b/arch/arm/mach-u300/Kconfig
index e3a96d7302e9..bc51a71394af 100644
--- a/arch/arm/mach-u300/Kconfig
+++ b/arch/arm/mach-u300/Kconfig
@@ -1,4 +1,4 @@
-config ARCH_U300
+menuconfig ARCH_U300
         bool "ST-Ericsson U300 Series" if ARCH_MULTI_V5
         depends on MMU
         select ARCH_REQUIRE_GPIOLIB
@@ -16,8 +16,6 @@ config ARCH_U300
 
 if ARCH_U300
 
-menu "ST-Ericsson AB U300/U335 Platform"
-
 config MACH_U300
         depends on ARCH_U300
         bool "U300"
@@ -43,6 +41,4 @@ config MACH_U300_SPIDUMMY
                 you don't need it. Selecting this will activate the
                 SPI framework and ARM PL022 support.
 
-endmenu
-
 endif
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index b41a42da1505..5be7c4583a93 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -1,9 +1,8 @@
-config ARCH_U8500
+menuconfig ARCH_U8500
         bool "ST-Ericsson U8500 Series" if ARCH_MULTI_V7
         depends on MMU
         select AB8500_CORE
         select ABX500_CORE
-        select ARCH_HAS_CPUFREQ
         select ARCH_REQUIRE_GPIOLIB
         select ARM_AMBA
         select ARM_ERRATA_754322
@@ -34,8 +33,6 @@ config UX500_SOC_DB8500
         select REGULATOR
         select REGULATOR_DB8500_PRCMU
 
-menu "Ux500 target platform (boards)"
-
 config MACH_MOP500
         bool "U8500 Development platform, MOP500 versions"
         select I2C
@@ -68,8 +65,6 @@ config UX500_AUTO_PLATFORM
           a working kernel. If everything else is disabled, this
           automatically enables MACH_MOP500.
 
-endmenu
-
 config UX500_DEBUG_UART
         int "Ux500 UART to use for low-level debug"
         default 2
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 90249cfc37b3..99c1f151c403 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -1,4 +1,4 @@
-config ARCH_VEXPRESS
+menuconfig ARCH_VEXPRESS
         bool "ARM Ltd. Versatile Express family" if ARCH_MULTI_V7
         select ARCH_REQUIRE_GPIOLIB
         select ARCH_SUPPORTS_BIG_ENDIAN
@@ -37,8 +37,7 @@ config ARCH_VEXPRESS
           platforms. The traditional (ATAGs) boot method is not usable on
           these boards with this option.
 
-menu "Versatile Express platform type"
-        depends on ARCH_VEXPRESS
+if ARCH_VEXPRESS
 
 config ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA
         bool "Enable A5 and A9 only errata work-arounds"
@@ -65,7 +64,6 @@ config ARCH_VEXPRESS_DCSCB
 
 config ARCH_VEXPRESS_SPC
         bool "Versatile Express Serial Power Controller (SPC)"
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_OPP
         select PM_OPP
         help
@@ -83,4 +81,4 @@ config ARCH_VEXPRESS_TC2_PM
           Support for CPU and cluster power management on Versatile Express
           with a TC2 (A15x2 A7x3) big.LITTLE core tile.
 
-endmenu
+endif
diff --git a/arch/arm/mach-vt8500/Kconfig b/arch/arm/mach-vt8500/Kconfig
index 08f56a41cb55..aaaa24fe4d71 100644
--- a/arch/arm/mach-vt8500/Kconfig
+++ b/arch/arm/mach-vt8500/Kconfig
@@ -1,6 +1,5 @@
 config ARCH_VT8500
         bool
-        select ARCH_HAS_CPUFREQ
         select ARCH_REQUIRE_GPIOLIB
         select CLKDEV_LOOKUP
         select VT8500_TIMER
diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig
index 573e0db1d0f0..0c164f81e72d 100644
--- a/arch/arm/mach-zynq/Kconfig
+++ b/arch/arm/mach-zynq/Kconfig
@@ -1,6 +1,5 @@
 config ARCH_ZYNQ
         bool "Xilinx Zynq ARM Cortex A9 Platform" if ARCH_MULTI_V7
-        select ARCH_HAS_CPUFREQ
         select ARCH_HAS_OPP
         select ARCH_SUPPORTS_BIG_ENDIAN
         select ARM_AMBA
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 243dfcb2ca0e..301b892d97d9 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -35,27 +35,15 @@ config SAMSUNG_PM
           Base platform power management code for samsung code
 
 if PLAT_SAMSUNG
+menu "Samsung Common options"
 
 # boot configurations
 
 comment "Boot options"
 
-config S3C_BOOT_ERROR_RESET
-        bool "S3C Reboot on decompression error"
-        help
-          Say y here to use the watchdog to reset the system if the
-          kernel decompressor detects an error during decompression.
-
-config S3C_BOOT_UART_FORCE_FIFO
-       bool "Force UART FIFO on during boot process"
-       default y
-       help
-         Say Y here to force the UART FIFOs on during the kernel
-         uncompressor
-
-
 config S3C_LOWLEVEL_UART_PORT
         int "S3C UART to use for low-level messages"
+        depends on ARCH_S3C64XX
         default 0
         help
           Choice of which UART port to use for the low-level messages,
@@ -407,17 +395,16 @@ config SAMSUNG_PM_GPIO
           Include legacy GPIO power management code for platforms not using
           pinctrl-samsung driver.
 
-endif
-
 config SAMSUNG_DMADEV
-        bool
-        select ARM_AMBA
+        bool "Use legacy Samsung DMA abstraction"
+        depends on CPU_S5PV210 || CPU_S5PC100 || ARCH_S5P64X0 || ARCH_S3C64XX
         select DMADEVICES
-        select PL330_DMA if (ARCH_EXYNOS5 || ARCH_EXYNOS4 || CPU_S5PV210 || CPU_S5PC100 || \
-                                        CPU_S5P6450 || CPU_S5P6440)
+        default y
         help
           Use DMA device engine for PL330 DMAC.
 
+endif
+
 config S5P_DEV_MFC
         bool
         help
@@ -503,4 +490,5 @@ config DEBUG_S3C_UART
         default "2" if DEBUG_S3C_UART2
         default "3" if DEBUG_S3C_UART3
 
+endmenu
 endif
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 7295419165e1..a474de346be6 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1,8 +1,9 @@
 config ARM64
         def_bool y
         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
-        select ARCH_USE_CMPXCHG_LOCKREF
+        select ARCH_HAS_OPP
         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+        select ARCH_USE_CMPXCHG_LOCKREF
         select ARCH_WANT_OPTIONAL_GPIOLIB
         select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
         select ARCH_WANT_FRAME_POINTERS
diff --git a/arch/arm64/boot/dts/apm-mustang.dts b/arch/arm64/boot/dts/apm-mustang.dts
index 1247ca1200b1..6541962f5d70 100644
--- a/arch/arm64/boot/dts/apm-mustang.dts
+++ b/arch/arm64/boot/dts/apm-mustang.dts
@@ -24,3 +24,7 @@
                 reg = < 0x1 0x00000000 0x0 0x80000000 >; /* Updated by bootloader */
         };
 };
+
+&serial0 {
+        status = "ok";
+};
diff --git a/arch/arm64/boot/dts/apm-storm.dtsi b/arch/arm64/boot/dts/apm-storm.dtsi
index c5f0a47a1375..40aa96ce13c4 100644
--- a/arch/arm64/boot/dts/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm-storm.dtsi
@@ -273,8 +273,9 @@
                 };
 
                 serial0: serial@1c020000 {
+                        status = "disabled";
                         device_type = "serial";
-                        compatible = "ns16550";
+                        compatible = "ns16550a";
                         reg = <0 0x1c020000 0x0 0x1000>;
                         reg-shift = <2>;
                         clock-frequency = <10000000>; /* Updated by bootloader */
@@ -282,6 +283,39 @@
                         interrupts = <0x0 0x4c 0x4>;
                 };
 
+                serial1: serial@1c021000 {
+                        status = "disabled";
+                        device_type = "serial";
+                        compatible = "ns16550a";
+                        reg = <0 0x1c021000 0x0 0x1000>;
+                        reg-shift = <2>;
+                        clock-frequency = <10000000>; /* Updated by bootloader */
+                        interrupt-parent = <&gic>;
+                        interrupts = <0x0 0x4d 0x4>;
+                };
+
+                serial2: serial@1c022000 {
+                        status = "disabled";
+                        device_type = "serial";
+                        compatible = "ns16550a";
+                        reg = <0 0x1c022000 0x0 0x1000>;
+                        reg-shift = <2>;
+                        clock-frequency = <10000000>; /* Updated by bootloader */
+                        interrupt-parent = <&gic>;
+                        interrupts = <0x0 0x4e 0x4>;
+                };
+
+                serial3: serial@1c023000 {
+                        status = "disabled";
+                        device_type = "serial";
+                        compatible = "ns16550a";
+                        reg = <0 0x1c023000 0x0 0x1000>;
+                        reg-shift = <2>;
+                        clock-frequency = <10000000>; /* Updated by bootloader */
+                        interrupt-parent = <&gic>;
+                        interrupts = <0x0 0x4f 0x4>;
+                };
+
                 phy1: phy@1f21a000 {
                         compatible = "apm,xgene-phy";
                         reg = <0x0 0x1f21a000 0x0 0x100>;
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 157e1d8d9a47..3421f316f5dc 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -6,9 +6,18 @@ CONFIG_NO_HZ_IDLE=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
+CONFIG_RESOURCE_COUNTERS=y
+CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_MEMCG_KMEM=y
+CONFIG_CGROUP_HUGETLB=y
 # CONFIG_UTS_NS is not set
 # CONFIG_IPC_NS is not set
 # CONFIG_PID_NS is not set
@@ -27,6 +36,7 @@ CONFIG_ARCH_VEXPRESS=y
 CONFIG_ARCH_XGENE=y
 CONFIG_SMP=y
 CONFIG_PREEMPT=y
+CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_CMA=y
 CONFIG_CMDLINE="console=ttyAMA0"
@@ -45,6 +55,7 @@ CONFIG_IP_PNP_BOOTP=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DMA_CMA=y
+CONFIG_BLK_DEV_LOOP=y
 CONFIG_VIRTIO_BLK=y
 # CONFIG_SCSI_PROC_FS is not set
 CONFIG_BLK_DEV_SD=y
@@ -53,6 +64,7 @@ CONFIG_ATA=y
 CONFIG_PATA_PLATFORM=y
 CONFIG_PATA_OF_PLATFORM=y
 CONFIG_NETDEVICES=y
+CONFIG_TUN=y
 CONFIG_SMC91X=y
 CONFIG_SMSC911X=y
 # CONFIG_WLAN is not set
@@ -85,6 +97,8 @@ CONFIG_EXT3_FS=y
 # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
 # CONFIG_EXT3_FS_XATTR is not set
 CONFIG_EXT4_FS=y
+CONFIG_FANOTIFY=y
+CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
 CONFIG_FUSE_FS=y
 CONFIG_CUSE=y
 CONFIG_VFAT_FS=y
@@ -104,6 +118,7 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_LOCKUP_DETECTOR=y
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_FTRACE is not set
+CONFIG_SECURITY=y
 CONFIG_CRYPTO_ANSI_CPRNG=y
 CONFIG_ARM64_CRYPTO=y
 CONFIG_CRYPTO_SHA1_ARM64_CE=y
diff --git a/arch/arm64/crypto/ghash-ce-core.S b/arch/arm64/crypto/ghash-ce-core.S
index b9e6eaf41c9b..dc457015884e 100644
--- a/arch/arm64/crypto/ghash-ce-core.S
+++ b/arch/arm64/crypto/ghash-ce-core.S
@@ -3,14 +3,6 @@
  *
  * Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
  *
- * Based on arch/x86/crypto/ghash-pmullni-intel_asm.S
- *
- * Copyright (c) 2009 Intel Corp.
- *   Author: Huang Ying <ying.huang@intel.com>
- *           Vinodh Gopal
- *           Erdinc Ozturk
- *           Deniz Karakoyunlu
- *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 as published
  * by the Free Software Foundation.
@@ -19,13 +11,15 @@
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 
-        DATA    .req    v0
-        SHASH   .req    v1
-        IN1     .req    v2
+        SHASH   .req    v0
+        SHASH2  .req    v1
         T1      .req    v2
         T2      .req    v3
-        T3      .req    v4
-        VZR     .req    v5
+        MASK    .req    v4
+        XL      .req    v5
+        XM      .req    v6
+        XH      .req    v7
+        IN1     .req    v7
 
         .text
         .arch           armv8-a+crypto
@@ -35,61 +29,51 @@
          *                         struct ghash_key const *k, const char *head)
          */
 ENTRY(pmull_ghash_update)
-        ld1             {DATA.16b}, [x1]
         ld1             {SHASH.16b}, [x3]
-        eor             VZR.16b, VZR.16b, VZR.16b
+        ld1             {XL.16b}, [x1]
+        movi            MASK.16b, #0xe1
+        ext             SHASH2.16b, SHASH.16b, SHASH.16b, #8
+        shl             MASK.2d, MASK.2d, #57
+        eor             SHASH2.16b, SHASH2.16b, SHASH.16b
 
         /* do the head block first, if supplied */
         cbz             x4, 0f
-        ld1             {IN1.2d}, [x4]
+        ld1             {T1.2d}, [x4]
         b               1f
 
-0:      ld1             {IN1.2d}, [x2], #16
+0:      ld1             {T1.2d}, [x2], #16
         sub             w0, w0, #1
-1:      ext             IN1.16b, IN1.16b, IN1.16b, #8
-CPU_LE( rev64           IN1.16b, IN1.16b        )
-        eor             DATA.16b, DATA.16b, IN1.16b
 
-        /* multiply DATA by SHASH in GF(2^128) */
-        ext             T2.16b, DATA.16b, DATA.16b, #8
-        ext             T3.16b, SHASH.16b, SHASH.16b, #8
-        eor             T2.16b, T2.16b, DATA.16b
-        eor             T3.16b, T3.16b, SHASH.16b
+1:      /* multiply XL by SHASH in GF(2^128) */
+CPU_LE( rev64           T1.16b, T1.16b  )
 
-        pmull2          T1.1q, SHASH.2d, DATA.2d        // a1 * b1
-        pmull           DATA.1q, SHASH.1d, DATA.1d      // a0 * b0
-        pmull           T2.1q, T2.1d, T3.1d             // (a1 + a0)(b1 + b0)
-        eor             T2.16b, T2.16b, T1.16b          // (a0 * b1) + (a1 * b0)
-        eor             T2.16b, T2.16b, DATA.16b
+        ext             T2.16b, XL.16b, XL.16b, #8
+        ext             IN1.16b, T1.16b, T1.16b, #8
+        eor             T1.16b, T1.16b, T2.16b
+        eor             XL.16b, XL.16b, IN1.16b
 
-        ext             T3.16b, VZR.16b, T2.16b, #8
-        ext             T2.16b, T2.16b, VZR.16b, #8
-        eor             DATA.16b, DATA.16b, T3.16b
-        eor             T1.16b, T1.16b, T2.16b  // <T1:DATA> is result of
-                                                // carry-less multiplication
+        pmull2          XH.1q, SHASH.2d, XL.2d          // a1 * b1
+        eor             T1.16b, T1.16b, XL.16b
+        pmull           XL.1q, SHASH.1d, XL.1d          // a0 * b0
+        pmull           XM.1q, SHASH2.1d, T1.1d         // (a1 + a0)(b1 + b0)
 
-        /* first phase of the reduction */
-        shl             T3.2d, DATA.2d, #1
-        eor             T3.16b, T3.16b, DATA.16b
-        shl             T3.2d, T3.2d, #5
-        eor             T3.16b, T3.16b, DATA.16b
-        shl             T3.2d, T3.2d, #57
-        ext             T2.16b, VZR.16b, T3.16b, #8
-        ext             T3.16b, T3.16b, VZR.16b, #8
-        eor             DATA.16b, DATA.16b, T2.16b
-        eor             T1.16b, T1.16b, T3.16b
+        ext             T1.16b, XL.16b, XH.16b, #8
+        eor             T2.16b, XL.16b, XH.16b
+        eor             XM.16b, XM.16b, T1.16b
+        eor             XM.16b, XM.16b, T2.16b
+        pmull           T2.1q, XL.1d, MASK.1d
 
-        /* second phase of the reduction */
-        ushr            T2.2d, DATA.2d, #5
-        eor             T2.16b, T2.16b, DATA.16b
-        ushr            T2.2d, T2.2d, #1
-        eor             T2.16b, T2.16b, DATA.16b
-        ushr            T2.2d, T2.2d, #1
-        eor             T1.16b, T1.16b, T2.16b
-        eor             DATA.16b, DATA.16b, T1.16b
+        mov             XH.d[0], XM.d[1]
+        mov             XM.d[1], XL.d[0]
+
+        eor             XL.16b, XM.16b, T2.16b
+        ext             T2.16b, XL.16b, XL.16b, #8
+        pmull           XL.1q, XL.1d, MASK.1d
+        eor             T2.16b, T2.16b, XH.16b
+        eor             XL.16b, XL.16b, T2.16b
 
         cbnz            w0, 0b
 
-        st1             {DATA.16b}, [x1]
+        st1             {XL.16b}, [x1]
         ret
 ENDPROC(pmull_ghash_update)
diff --git a/arch/arm64/crypto/ghash-ce-glue.c b/arch/arm64/crypto/ghash-ce-glue.c
index b92baf3f68c7..833ec1e3f3e9 100644
--- a/arch/arm64/crypto/ghash-ce-glue.c
+++ b/arch/arm64/crypto/ghash-ce-glue.c
@@ -67,11 +67,12 @@ static int ghash_update(struct shash_desc *desc, const u8 *src,
                 blocks = len / GHASH_BLOCK_SIZE;
                 len %= GHASH_BLOCK_SIZE;
 
-                kernel_neon_begin_partial(6);
+                kernel_neon_begin_partial(8);
                 pmull_ghash_update(blocks, ctx->digest, src, key,
                                    partial ? ctx->buf : NULL);
                 kernel_neon_end();
                 src += blocks * GHASH_BLOCK_SIZE;
+                partial = 0;
         }
         if (len)
                 memcpy(ctx->buf + partial, src, len);
@@ -88,7 +89,7 @@ static int ghash_final(struct shash_desc *desc, u8 *dst)
 
                 memset(ctx->buf + partial, 0, GHASH_BLOCK_SIZE - partial);
 
-                kernel_neon_begin_partial(6);
+                kernel_neon_begin_partial(8);
                 pmull_ghash_update(1, ctx->digest, ctx->buf, key, NULL);
                 kernel_neon_end();
         }
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index 42c7eecd2bb6..0b3fcf86e6ba 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -30,7 +30,6 @@ generic-y += msgbuf.h
 generic-y += mutex.h
 generic-y += pci.h
 generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
 generic-y += resource.h
 generic-y += rwsem.h
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 3a4572ec3273..dc82e52acdb3 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -26,8 +26,6 @@
 #include <xen/xen.h>
 #include <asm/xen/hypervisor.h>
 
-#define ARCH_HAS_DMA_GET_REQUIRED_MASK
-
 #define DMA_ERROR_CODE  (~(dma_addr_t)0)
 extern struct dma_map_ops *dma_ops;
 extern struct dma_map_ops coherent_swiotlb_dma_ops;
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 598cc384fc1c..579702086488 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -246,7 +246,7 @@ static inline pmd_t pte_pmd(pte_t pte)
 #define pmd_mkwrite(pmd)        pte_pmd(pte_mkwrite(pmd_pte(pmd)))
 #define pmd_mkdirty(pmd)        pte_pmd(pte_mkdirty(pmd_pte(pmd)))
 #define pmd_mkyoung(pmd)        pte_pmd(pte_mkyoung(pmd_pte(pmd)))
-#define pmd_mknotpresent(pmd)   (__pmd(pmd_val(pmd) &= ~PMD_TYPE_MASK))
+#define pmd_mknotpresent(pmd)   (__pmd(pmd_val(pmd) & ~PMD_TYPE_MASK))
 
 #define __HAVE_ARCH_PMD_WRITE
 #define pmd_write(pmd)          pte_write(pmd_pte(pmd))
diff --git a/arch/arm64/include/uapi/asm/posix_types.h b/arch/arm64/include/uapi/asm/posix_types.h
new file mode 100644
index 000000000000..7985ff60ca3f
--- /dev/null
+++ b/arch/arm64/include/uapi/asm/posix_types.h
@@ -0,0 +1,10 @@
+#ifndef __ASM_POSIX_TYPES_H
+#define __ASM_POSIX_TYPES_H
+
+typedef unsigned short __kernel_old_uid_t;
+typedef unsigned short __kernel_old_gid_t;
+#define __kernel_old_uid_t __kernel_old_uid_t
+
+#include <asm-generic/posix_types.h>
+
+#endif /*  __ASM_POSIX_TYPES_H */
diff --git a/arch/arm64/include/uapi/asm/sigcontext.h b/arch/arm64/include/uapi/asm/sigcontext.h
index b72cf405b3fe..ee469be1ae1d 100644
--- a/arch/arm64/include/uapi/asm/sigcontext.h
+++ b/arch/arm64/include/uapi/asm/sigcontext.h
@@ -58,7 +58,7 @@ struct fpsimd_context {
 
 struct esr_context {
         struct _aarch64_ctx head;
-        u64 esr;
+        __u64 esr;
 };
 
 #endif /* _UAPI__ASM_SIGCONTEXT_H */
diff --git a/arch/arm64/kernel/entry-ftrace.S b/arch/arm64/kernel/entry-ftrace.S
index b051871f2965..aa5f9fcbf9ee 100644
--- a/arch/arm64/kernel/entry-ftrace.S
+++ b/arch/arm64/kernel/entry-ftrace.S
@@ -205,7 +205,7 @@ ENDPROC(ftrace_graph_caller)
  *
  * Run ftrace_return_to_handler() before going back to parent.
  * @fp is checked against the value passed by ftrace_graph_caller()
- * only when CONFIG_FUNCTION_GRAPH_FP_TEST is enabled.
+ * only when CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST is enabled.
  */
 ENTRY(return_to_handler)
         str     x0, [sp, #-16]!
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index bf017f4ffb4f..9ce04ba6bcb0 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -279,7 +279,6 @@ el1_sp_pc:
          */
         mrs     x0, far_el1
         enable_dbg
-        mov     x1, x25
         mov     x2, sp
         b       do_sp_pc_abort
 el1_undef:
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 3e926b9c0641..9fde010c945f 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -655,11 +655,16 @@ static int compat_gpr_get(struct task_struct *target,
                         reg = task_pt_regs(target)->regs[idx];
                 }
 
-                ret = copy_to_user(ubuf, &reg, sizeof(reg));
-                if (ret)
-                        break;
-
-                ubuf += sizeof(reg);
+                if (kbuf) {
+                        memcpy(kbuf, &reg, sizeof(reg));
+                        kbuf += sizeof(reg);
+                } else {
+                        ret = copy_to_user(ubuf, &reg, sizeof(reg));
+                        if (ret)
+                                break;
+
+                        ubuf += sizeof(reg);
+                }
         }
 
         return ret;
@@ -689,11 +694,16 @@ static int compat_gpr_set(struct task_struct *target,
                 unsigned int idx = start + i;
                 compat_ulong_t reg;
 
-                ret = copy_from_user(&reg, ubuf, sizeof(reg));
-                if (ret)
-                        return ret;
+                if (kbuf) {
+                        memcpy(&reg, kbuf, sizeof(reg));
+                        kbuf += sizeof(reg);
+                } else {
+                        ret = copy_from_user(&reg, ubuf, sizeof(reg));
+                        if (ret)
+                                return ret;
 
-                ubuf += sizeof(reg);
+                        ubuf += sizeof(reg);
+                }
 
                 switch (idx) {
                 case 15:
@@ -827,6 +837,7 @@ static int compat_ptrace_write_user(struct task_struct *tsk, compat_ulong_t off,
                                     compat_ulong_t val)
 {
         int ret;
+        mm_segment_t old_fs = get_fs();
 
         if (off & 3 || off >= COMPAT_USER_SZ)
                 return -EIO;
@@ -834,10 +845,13 @@ static int compat_ptrace_write_user(struct task_struct *tsk, compat_ulong_t off,
         if (off >= sizeof(compat_elf_gregset_t))
                 return 0;
 
+        set_fs(KERNEL_DS);
         ret = copy_regset_from_user(tsk, &user_aarch32_view,
                                     REGSET_COMPAT_GPR, off,
                                     sizeof(compat_ulong_t),
                                     &val);
+        set_fs(old_fs);
+
         return ret;
 }
 
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 091d428d64ac..f43db8a69262 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -71,7 +71,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
         /* 4GB maximum for 32-bit only capable devices */
         if (IS_ENABLED(CONFIG_ZONE_DMA)) {
                 unsigned long max_dma_phys =
-                        (unsigned long)dma_to_phys(NULL, DMA_BIT_MASK(32) + 1);
+                        (unsigned long)(dma_to_phys(NULL, DMA_BIT_MASK(32)) + 1);
                 max_dma = max(min, min(max, max_dma_phys >> PAGE_SHIFT));
                 zone_size[ZONE_DMA] = max_dma - min;
         }
@@ -126,6 +126,8 @@ static void arm64_memory_present(void)
 
 void __init arm64_memblock_init(void)
 {
+        phys_addr_t dma_phys_limit = 0;
+
         /* Register the kernel text, kernel data and initrd with memblock */
         memblock_reserve(__pa(_text), _end - _text);
 #ifdef CONFIG_BLK_DEV_INITRD
@@ -141,7 +143,11 @@ void __init arm64_memblock_init(void)
         memblock_reserve(__pa(idmap_pg_dir), IDMAP_DIR_SIZE);
 
         early_init_fdt_scan_reserved_mem();
-        dma_contiguous_reserve(0);
+
+        /* 4GB maximum for 32-bit only capable devices */
+        if (IS_ENABLED(CONFIG_ZONE_DMA))
+                dma_phys_limit = dma_to_phys(NULL, DMA_BIT_MASK(32)) + 1;
+        dma_contiguous_reserve(dma_phys_limit);
 
         memblock_allow_resize();
         memblock_dump_all();
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 1a871b78e570..344387a55406 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -242,7 +242,7 @@ struct ioc {
         struct pci_dev  *sac_only_dev;
 };
 
-static struct ioc *ioc_list;
+static struct ioc *ioc_list, *ioc_found;
 static int reserve_sba_gart = 1;
 
 static SBA_INLINE void sba_mark_invalid(struct ioc *, dma_addr_t, size_t);
@@ -1809,20 +1809,13 @@ static struct ioc_iommu ioc_iommu_info[] __initdata = {
         { SX2000_IOC_ID, "sx2000", NULL },
 };
 
-static struct ioc *
-ioc_init(unsigned long hpa, void *handle)
+static void ioc_init(unsigned long hpa, struct ioc *ioc)
 {
-        struct ioc *ioc;
         struct ioc_iommu *info;
 
-        ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
-        if (!ioc)
-                return NULL;
-
         ioc->next = ioc_list;
         ioc_list = ioc;
 
-        ioc->handle = handle;
         ioc->ioc_hpa = ioremap(hpa, 0x1000);
 
         ioc->func_id = READ_REG(ioc->ioc_hpa + IOC_FUNC_ID);
@@ -1863,8 +1856,6 @@ ioc_init(unsigned long hpa, void *handle)
                 "%s %d.%d HPA 0x%lx IOVA space %dMb at 0x%lx\n",
                 ioc->name, (ioc->rev >> 4) & 0xF, ioc->rev & 0xF,
                 hpa, ioc->iov_size >> 20, ioc->ibase);
-
-        return ioc;
 }
 
 
@@ -2031,22 +2022,21 @@ sba_map_ioc_to_node(struct ioc *ioc, acpi_handle handle)
 #endif
 }
 
-static int
-acpi_sba_ioc_add(struct acpi_device *device,
-                 const struct acpi_device_id *not_used)
+static void acpi_sba_ioc_add(struct ioc *ioc)
 {
-        struct ioc *ioc;
+        acpi_handle handle = ioc->handle;
         acpi_status status;
         u64 hpa, length;
         struct acpi_device_info *adi;
 
-        status = hp_acpi_csr_space(device->handle, &hpa, &length);
+        ioc_found = ioc->next;
+        status = hp_acpi_csr_space(handle, &hpa, &length);
         if (ACPI_FAILURE(status))
-                return 1;
+                goto err;
 
-        status = acpi_get_object_info(device->handle, &adi);
+        status = acpi_get_object_info(handle, &adi);
         if (ACPI_FAILURE(status))
-                return 1;
+                goto err;
 
         /*
          * For HWP0001, only SBA appears in ACPI namespace.  It encloses the PCI
@@ -2067,13 +2057,13 @@ acpi_sba_ioc_add(struct acpi_device *device,
         if (!iovp_shift)
                 iovp_shift = 12;
 
-        ioc = ioc_init(hpa, device->handle);
-        if (!ioc)
-                return 1;
-
+        ioc_init(hpa, ioc);
         /* setup NUMA node association */
-        sba_map_ioc_to_node(ioc, device->handle);
-        return 0;
+        sba_map_ioc_to_node(ioc, handle);
+        return;
+
+ err:
+        kfree(ioc);
 }
 
 static const struct acpi_device_id hp_ioc_iommu_device_ids[] = {
@@ -2081,9 +2071,26 @@ static const struct acpi_device_id hp_ioc_iommu_device_ids[] = {
         {"HWP0004", 0},
         {"", 0},
 };
+
+static int acpi_sba_ioc_attach(struct acpi_device *device,
+                               const struct acpi_device_id *not_used)
+{
+        struct ioc *ioc;
+
+        ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
+        if (!ioc)
+                return -ENOMEM;
+
+        ioc->next = ioc_found;
+        ioc_found = ioc;
+        ioc->handle = device->handle;
+        return 1;
+}
+
+
 static struct acpi_scan_handler acpi_sba_ioc_handler = {
         .ids    = hp_ioc_iommu_device_ids,
-        .attach = acpi_sba_ioc_add,
+        .attach = acpi_sba_ioc_attach,
 };
 
 static int __init acpi_sba_ioc_init_acpi(void)
@@ -2118,9 +2125,12 @@ sba_init(void)
 #endif
 
         /*
-         * ioc_list should be populated by the acpi_sba_ioc_handler's .attach()
+         * ioc_found should be populated by the acpi_sba_ioc_handler's .attach()
          * routine, but that only happens if acpi_scan_init() has already run.
          */
+        while (ioc_found)
+                acpi_sba_ioc_add(ioc_found);
+
         if (!ioc_list) {
 #ifdef CONFIG_IA64_GENERIC
                 /*
diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig
index 8df022c43af7..fd09a10a2b53 100644
--- a/arch/s390/configs/default_defconfig
+++ b/arch/s390/configs/default_defconfig
@@ -45,7 +45,8 @@ CONFIG_SOLARIS_X86_PARTITION=y
 CONFIG_UNIXWARE_DISKLABEL=y
 CONFIG_CFQ_GROUP_IOSCHED=y
 CONFIG_DEFAULT_DEADLINE=y
-CONFIG_MARCH_Z9_109=y
+CONFIG_MARCH_Z196=y
+CONFIG_TUNE_ZEC12=y
 CONFIG_NR_CPUS=256
 CONFIG_PREEMPT=y
 CONFIG_HZ_100=y
@@ -240,7 +241,6 @@ CONFIG_IP_VS_PE_SIP=m
 CONFIG_NF_CONNTRACK_IPV4=m
 # CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
 CONFIG_NF_TABLES_IPV4=m
-CONFIG_NFT_REJECT_IPV4=m
 CONFIG_NFT_CHAIN_ROUTE_IPV4=m
 CONFIG_NFT_CHAIN_NAT_IPV4=m
 CONFIG_NF_TABLES_ARP=m
@@ -456,6 +456,7 @@ CONFIG_TN3270_FS=y
 CONFIG_WATCHDOG=y
 CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_SOFT_WATCHDOG=m
+CONFIG_DIAG288_WATCHDOG=m
 # CONFIG_HID is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_INFINIBAND=m
diff --git a/arch/s390/configs/gcov_defconfig b/arch/s390/configs/gcov_defconfig
index c81a74e3e25a..b061180d3544 100644
--- a/arch/s390/configs/gcov_defconfig
+++ b/arch/s390/configs/gcov_defconfig
@@ -45,7 +45,8 @@ CONFIG_SOLARIS_X86_PARTITION=y
 CONFIG_UNIXWARE_DISKLABEL=y
 CONFIG_CFQ_GROUP_IOSCHED=y
 CONFIG_DEFAULT_DEADLINE=y
-CONFIG_MARCH_Z9_109=y
+CONFIG_MARCH_Z196=y
+CONFIG_TUNE_ZEC12=y
 CONFIG_NR_CPUS=256
 CONFIG_HZ_100=y
 CONFIG_MEMORY_HOTPLUG=y
@@ -238,7 +239,6 @@ CONFIG_IP_VS_PE_SIP=m
 CONFIG_NF_CONNTRACK_IPV4=m
 # CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
 CONFIG_NF_TABLES_IPV4=m
-CONFIG_NFT_REJECT_IPV4=m
 CONFIG_NFT_CHAIN_ROUTE_IPV4=m
 CONFIG_NFT_CHAIN_NAT_IPV4=m
 CONFIG_NF_TABLES_ARP=m
@@ -453,6 +453,7 @@ CONFIG_TN3270_FS=y
 CONFIG_WATCHDOG=y
 CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_SOFT_WATCHDOG=m
+CONFIG_DIAG288_WATCHDOG=m
 # CONFIG_HID is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_INFINIBAND=m
diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig
index b5ba8fe1cc64..d279baa08014 100644
--- a/arch/s390/configs/performance_defconfig
+++ b/arch/s390/configs/performance_defconfig
@@ -43,7 +43,8 @@ CONFIG_SOLARIS_X86_PARTITION=y
 CONFIG_UNIXWARE_DISKLABEL=y
 CONFIG_CFQ_GROUP_IOSCHED=y
 CONFIG_DEFAULT_DEADLINE=y
-CONFIG_MARCH_Z9_109=y
+CONFIG_MARCH_Z196=y
+CONFIG_TUNE_ZEC12=y
 CONFIG_NR_CPUS=256
 CONFIG_HZ_100=y
 CONFIG_MEMORY_HOTPLUG=y
@@ -236,7 +237,6 @@ CONFIG_IP_VS_PE_SIP=m
 CONFIG_NF_CONNTRACK_IPV4=m
 # CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
 CONFIG_NF_TABLES_IPV4=m
-CONFIG_NFT_REJECT_IPV4=m
 CONFIG_NFT_CHAIN_ROUTE_IPV4=m
 CONFIG_NFT_CHAIN_NAT_IPV4=m
 CONFIG_NF_TABLES_ARP=m
@@ -451,6 +451,7 @@ CONFIG_TN3270_FS=y
 CONFIG_WATCHDOG=y
 CONFIG_WATCHDOG_NOWAYOUT=y
 CONFIG_SOFT_WATCHDOG=m
+CONFIG_DIAG288_WATCHDOG=m
 # CONFIG_HID is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_INFINIBAND=m
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
index cef073ca1f07..948e0e057a23 100644
--- a/arch/s390/configs/zfcpdump_defconfig
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -8,7 +8,8 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_IBM_PARTITION=y
 CONFIG_DEFAULT_DEADLINE=y
-CONFIG_MARCH_Z9_109=y
+CONFIG_MARCH_Z196=y
+CONFIG_TUNE_ZEC12=y
 # CONFIG_COMPAT is not set
 CONFIG_NR_CPUS=2
 # CONFIG_HOTPLUG_CPU is not set
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 4557cb7ffddf..2e56498a40df 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -135,8 +135,8 @@ CONFIG_PROVE_LOCKING=y
 CONFIG_LOCK_STAT=y
 CONFIG_DEBUG_LOCKDEP=y
 CONFIG_DEBUG_ATOMIC_SLEEP=y
-CONFIG_DEBUG_WRITECOUNT=y
 CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_PI_LIST=y
 CONFIG_DEBUG_SG=y
 CONFIG_DEBUG_NOTIFIERS=y
 CONFIG_PROVE_RCU=y
@@ -199,4 +199,10 @@ CONFIG_CRYPTO_SHA512_S390=m
 CONFIG_CRYPTO_DES_S390=m
 CONFIG_CRYPTO_AES_S390=m
 CONFIG_CRC7=m
+# CONFIG_XZ_DEC_X86 is not set
+# CONFIG_XZ_DEC_POWERPC is not set
+# CONFIG_XZ_DEC_IA64 is not set
+# CONFIG_XZ_DEC_ARM is not set
+# CONFIG_XZ_DEC_ARMTHUMB is not set
+# CONFIG_XZ_DEC_SPARC is not set
 CONFIG_CMM=m
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index c28f32a45af5..3815bfea1b2d 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -33,10 +33,9 @@ static inline int init_new_context(struct task_struct *tsk,
 
 static inline void set_user_asce(struct mm_struct *mm)
 {
-        pgd_t *pgd = mm->pgd;
-
-        S390_lowcore.user_asce = mm->context.asce_bits | __pa(pgd);
-        set_fs(current->thread.mm_segment);
+        S390_lowcore.user_asce = mm->context.asce_bits | __pa(mm->pgd);
+        if (current->thread.mm_segment.ar4)
+                __ctl_load(S390_lowcore.user_asce, 7, 7);
         set_cpu_flag(CIF_ASCE);
 }
 
@@ -70,12 +69,11 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
         /* Clear old ASCE by loading the kernel ASCE. */
         __ctl_load(S390_lowcore.kernel_asce, 1, 1);
         __ctl_load(S390_lowcore.kernel_asce, 7, 7);
-        /* Delay loading of the new ASCE to control registers CR1 & CR7 */
-        set_cpu_flag(CIF_ASCE);
         atomic_inc(&next->context.attach_count);
         atomic_dec(&prev->context.attach_count);
         if (MACHINE_HAS_TLB_LC)
                 cpumask_clear_cpu(cpu, &prev->context.cpu_attach_mask);
+        S390_lowcore.user_asce = next->context.asce_bits | __pa(next->pgd);
 }
 
 #define finish_arch_post_lock_switch finish_arch_post_lock_switch
@@ -84,17 +82,18 @@ static inline void finish_arch_post_lock_switch(void)
         struct task_struct *tsk = current;
         struct mm_struct *mm = tsk->mm;
 
-        if (!mm)
-                return;
-        preempt_disable();
-        while (atomic_read(&mm->context.attach_count) >> 16)
-                cpu_relax();
-
-        cpumask_set_cpu(smp_processor_id(), mm_cpumask(mm));
-        set_user_asce(mm);
-        if (mm->context.flush_mm)
-                __tlb_flush_mm(mm);
-        preempt_enable();
+        load_kernel_asce();
+        if (mm) {
+                preempt_disable();
+                while (atomic_read(&mm->context.attach_count) >> 16)
+                        cpu_relax();
+
+                cpumask_set_cpu(smp_processor_id(), mm_cpumask(mm));
+                if (mm->context.flush_mm)
+                        __tlb_flush_mm(mm);
+                preempt_enable();
+        }
+        set_fs(current->thread.mm_segment);
 }
 
 #define enter_lazy_tlb(mm,tsk)  do { } while (0)
diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
index 29c81f82705e..df38c70cd59e 100644
--- a/arch/s390/include/asm/switch_to.h
+++ b/arch/s390/include/asm/switch_to.h
@@ -134,8 +134,4 @@ static inline void restore_access_regs(unsigned int *acrs)
         prev = __switch_to(prev,next);                                  \
 } while (0)
 
-#define finish_arch_switch(prev) do {                                        \
-        set_fs(current->thread.mm_segment);                                  \
-} while (0)
-
 #endif /* __ASM_SWITCH_TO_H */
diff --git a/arch/s390/include/uapi/asm/ucontext.h b/arch/s390/include/uapi/asm/ucontext.h
index 200e06325c6a..3e077b2a4705 100644
--- a/arch/s390/include/uapi/asm/ucontext.h
+++ b/arch/s390/include/uapi/asm/ucontext.h
@@ -16,7 +16,9 @@ struct ucontext_extended {
         struct ucontext  *uc_link;
         stack_t           uc_stack;
         _sigregs          uc_mcontext;
-        unsigned long     uc_sigmask[2];
+        sigset_t          uc_sigmask;
+        /* Allow for uc_sigmask growth.  Glibc uses a 1024-bit sigset_t.  */
+        unsigned char     __unused[128 - sizeof(sigset_t)];
         unsigned long     uc_gprs_high[16];
 };
 
@@ -27,7 +29,9 @@ struct ucontext {
         struct ucontext  *uc_link;
         stack_t           uc_stack;
         _sigregs          uc_mcontext;
-        sigset_t          uc_sigmask;   /* mask last for extensibility */
+        sigset_t          uc_sigmask;
+        /* Allow for uc_sigmask growth.  Glibc uses a 1024-bit sigset_t.  */
+        unsigned char     __unused[128 - sizeof(sigset_t)];
 };
 
 #endif /* !_ASM_S390_UCONTEXT_H */
diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h
index 39ddfdb40ae8..70d4b7c4beaa 100644
--- a/arch/s390/kernel/compat_linux.h
+++ b/arch/s390/kernel/compat_linux.h
@@ -69,7 +69,9 @@ struct ucontext32 {
         __u32                   uc_link;        /* pointer */   
         compat_stack_t          uc_stack;
         _sigregs32              uc_mcontext;
-        compat_sigset_t         uc_sigmask;     /* mask last for extensibility */
+        compat_sigset_t         uc_sigmask;
+        /* Allow for uc_sigmask growth.  Glibc uses a 1024-bit sigset_t.  */
+        unsigned char           __unused[128 - sizeof(compat_sigset_t)];
 };
 
 struct stat64_emu31;
diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c
index 503e6d96ad4e..df922f52d76d 100644
--- a/arch/sparc/crypto/aes_glue.c
+++ b/arch/sparc/crypto/aes_glue.c
@@ -124,7 +124,7 @@ extern void aes_sparc64_ctr_crypt_256(const u64 *key, const u64 *input,
                                       u64 *output, unsigned int len,
                                       u64 *iv);
 
-struct aes_ops aes128_ops = {
+static struct aes_ops aes128_ops = {
         .encrypt                = aes_sparc64_encrypt_128,
         .decrypt                = aes_sparc64_decrypt_128,
         .load_encrypt_keys      = aes_sparc64_load_encrypt_keys_128,
@@ -136,7 +136,7 @@ struct aes_ops aes128_ops = {
         .ctr_crypt              = aes_sparc64_ctr_crypt_128,
 };
 
-struct aes_ops aes192_ops = {
+static struct aes_ops aes192_ops = {
         .encrypt                = aes_sparc64_encrypt_192,
         .decrypt                = aes_sparc64_decrypt_192,
         .load_encrypt_keys      = aes_sparc64_load_encrypt_keys_192,
@@ -148,7 +148,7 @@ struct aes_ops aes192_ops = {
         .ctr_crypt              = aes_sparc64_ctr_crypt_192,
 };
 
-struct aes_ops aes256_ops = {
+static struct aes_ops aes256_ops = {
         .encrypt                = aes_sparc64_encrypt_256,
         .decrypt                = aes_sparc64_decrypt_256,
         .load_encrypt_keys      = aes_sparc64_load_encrypt_keys_256,
diff --git a/arch/sparc/include/asm/atomic_32.h b/arch/sparc/include/asm/atomic_32.h
index f08fe51b264d..7aed2be45b44 100644
--- a/arch/sparc/include/asm/atomic_32.h
+++ b/arch/sparc/include/asm/atomic_32.h
@@ -20,11 +20,11 @@
 
 #define ATOMIC_INIT(i)  { (i) }
 
-extern int __atomic_add_return(int, atomic_t *);
-extern int atomic_cmpxchg(atomic_t *, int, int);
+int __atomic_add_return(int, atomic_t *);
+int atomic_cmpxchg(atomic_t *, int, int);
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-extern int __atomic_add_unless(atomic_t *, int, int);
-extern void atomic_set(atomic_t *, int);
+int __atomic_add_unless(atomic_t *, int, int);
+void atomic_set(atomic_t *, int);
 
 #define atomic_read(v)          (*(volatile int *)&(v)->counter)
 
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index 8b2f1bde2889..bb894c8bec56 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -20,15 +20,15 @@
 #define atomic_set(v, i)        (((v)->counter) = i)
 #define atomic64_set(v, i)      (((v)->counter) = i)
 
-extern void atomic_add(int, atomic_t *);
-extern void atomic64_add(long, atomic64_t *);
-extern void atomic_sub(int, atomic_t *);
-extern void atomic64_sub(long, atomic64_t *);
+void atomic_add(int, atomic_t *);
+void atomic64_add(long, atomic64_t *);
+void atomic_sub(int, atomic_t *);
+void atomic64_sub(long, atomic64_t *);
 
-extern int atomic_add_ret(int, atomic_t *);
-extern long atomic64_add_ret(long, atomic64_t *);
-extern int atomic_sub_ret(int, atomic_t *);
-extern long atomic64_sub_ret(long, atomic64_t *);
+int atomic_add_ret(int, atomic_t *);
+long atomic64_add_ret(long, atomic64_t *);
+int atomic_sub_ret(int, atomic_t *);
+long atomic64_sub_ret(long, atomic64_t *);
 
 #define atomic_dec_return(v) atomic_sub_ret(1, v)
 #define atomic64_dec_return(v) atomic64_sub_ret(1, v)
@@ -107,6 +107,6 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
 
-extern long atomic64_dec_if_positive(atomic64_t *v);
+long atomic64_dec_if_positive(atomic64_t *v);
 
 #endif /* !(__ARCH_SPARC64_ATOMIC__) */
diff --git a/arch/sparc/include/asm/auxio.h b/arch/sparc/include/asm/auxio.h
index 13dc67f03011..3e09a07b77e9 100644
--- a/arch/sparc/include/asm/auxio.h
+++ b/arch/sparc/include/asm/auxio.h
@@ -1,5 +1,12 @@
 #ifndef ___ASM_SPARC_AUXIO_H
 #define ___ASM_SPARC_AUXIO_H
+
+#ifndef __ASSEMBLY__
+
+extern void __iomem *auxio_register;
+
+#endif /* ifndef __ASSEMBLY__ */
+
 #if defined(__sparc__) && defined(__arch64__)
 #include <asm/auxio_64.h>
 #else
diff --git a/arch/sparc/include/asm/auxio_32.h b/arch/sparc/include/asm/auxio_32.h
index 3a319775ae37..5d685df427b4 100644
--- a/arch/sparc/include/asm/auxio_32.h
+++ b/arch/sparc/include/asm/auxio_32.h
@@ -34,8 +34,8 @@
  * NOTE: these routines are implementation dependent--
  * understand the hardware you are querying!
  */
-extern void set_auxio(unsigned char bits_on, unsigned char bits_off);
-extern unsigned char get_auxio(void); /* .../asm/floppy.h */
+void set_auxio(unsigned char bits_on, unsigned char bits_off);
+unsigned char get_auxio(void); /* .../asm/floppy.h */
 
 /*
  * The following routines are provided for driver-compatibility
@@ -78,7 +78,7 @@ do { \
 
 
 /* AUXIO2 (Power Off Control) */
-extern __volatile__ unsigned char * auxio_power_register;
+extern volatile u8 __iomem *auxio_power_register;
 
 #define AUXIO_POWER_DETECT_FAILURE      32
 #define AUXIO_POWER_CLEAR_FAILURE       2
diff --git a/arch/sparc/include/asm/auxio_64.h b/arch/sparc/include/asm/auxio_64.h
index f61cd1e3e395..6079e59a7ad1 100644
--- a/arch/sparc/include/asm/auxio_64.h
+++ b/arch/sparc/include/asm/auxio_64.h
@@ -75,8 +75,6 @@
 
 #ifndef __ASSEMBLY__
 
-extern void __iomem *auxio_register;
-
 #define AUXIO_LTE_ON    1
 #define AUXIO_LTE_OFF   0
 
@@ -84,7 +82,7 @@ extern void __iomem *auxio_register;
  *
  * on - AUXIO_LTE_ON or AUXIO_LTE_OFF
  */
-extern void auxio_set_lte(int on);
+void auxio_set_lte(int on);
 
 #define AUXIO_LED_ON    1
 #define AUXIO_LED_OFF   0
@@ -93,7 +91,7 @@ extern void auxio_set_lte(int on);
  *
  * on - AUXIO_LED_ON or AUXIO_LED_OFF
  */
-extern void auxio_set_led(int on);
+void auxio_set_led(int on);
 
 #endif /* ifndef __ASSEMBLY__ */
 
diff --git a/arch/sparc/include/asm/bitext.h b/arch/sparc/include/asm/bitext.h
index 297b2f2fcb49..9c988bf3adb6 100644
--- a/arch/sparc/include/asm/bitext.h
+++ b/arch/sparc/include/asm/bitext.h
@@ -20,8 +20,8 @@ struct bit_map {
         int num_colors;
 };
 
-extern int bit_map_string_get(struct bit_map *t, int len, int align);
-extern void bit_map_clear(struct bit_map *t, int offset, int len);
-extern void bit_map_init(struct bit_map *t, unsigned long *map, int size);
+int bit_map_string_get(struct bit_map *t, int len, int align);
+void bit_map_clear(struct bit_map *t, int offset, int len);
+void bit_map_init(struct bit_map *t, unsigned long *map, int size);
 
 #endif /* defined(_SPARC_BITEXT_H) */
diff --git a/arch/sparc/include/asm/bitops_32.h b/arch/sparc/include/asm/bitops_32.h
index 88c9a962502c..600ed1d9c8c8 100644
--- a/arch/sparc/include/asm/bitops_32.h
+++ b/arch/sparc/include/asm/bitops_32.h
@@ -18,9 +18,9 @@
 #error only <linux/bitops.h> can be included directly
 #endif
 
-extern unsigned long ___set_bit(unsigned long *addr, unsigned long mask);
-extern unsigned long ___clear_bit(unsigned long *addr, unsigned long mask);
-extern unsigned long ___change_bit(unsigned long *addr, unsigned long mask);
+unsigned long ___set_bit(unsigned long *addr, unsigned long mask);
+unsigned long ___clear_bit(unsigned long *addr, unsigned long mask);
+unsigned long ___change_bit(unsigned long *addr, unsigned long mask);
 
 /*
  * Set bit 'nr' in 32-bit quantity at address 'addr' where bit '0'
diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h
index f1a051ca301a..2d522402a937 100644
--- a/arch/sparc/include/asm/bitops_64.h
+++ b/arch/sparc/include/asm/bitops_64.h
@@ -15,12 +15,12 @@
 #include <asm/byteorder.h>
 #include <asm/barrier.h>
 
-extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr);
-extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr);
-extern int test_and_change_bit(unsigned long nr, volatile unsigned long *addr);
-extern void set_bit(unsigned long nr, volatile unsigned long *addr);
-extern void clear_bit(unsigned long nr, volatile unsigned long *addr);
-extern void change_bit(unsigned long nr, volatile unsigned long *addr);
+int test_and_set_bit(unsigned long nr, volatile unsigned long *addr);
+int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr);
+int test_and_change_bit(unsigned long nr, volatile unsigned long *addr);
+void set_bit(unsigned long nr, volatile unsigned long *addr);
+void clear_bit(unsigned long nr, volatile unsigned long *addr);
+void change_bit(unsigned long nr, volatile unsigned long *addr);
 
 #include <asm-generic/bitops/non-atomic.h>
 
@@ -30,8 +30,8 @@ extern void change_bit(unsigned long nr, volatile unsigned long *addr);
 
 #ifdef __KERNEL__
 
-extern int ffs(int x);
-extern unsigned long __ffs(unsigned long);
+int ffs(int x);
+unsigned long __ffs(unsigned long);
 
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/sched.h>
@@ -41,10 +41,10 @@ extern unsigned long __ffs(unsigned long);
  * of bits set) of a N-bit word
  */
 
-extern unsigned long __arch_hweight64(__u64 w);
-extern unsigned int __arch_hweight32(unsigned int w);
-extern unsigned int __arch_hweight16(unsigned int w);
-extern unsigned int __arch_hweight8(unsigned int w);
+unsigned long __arch_hweight64(__u64 w);
+unsigned int __arch_hweight32(unsigned int w);
+unsigned int __arch_hweight16(unsigned int w);
+unsigned int __arch_hweight8(unsigned int w);
 
 #include <asm-generic/bitops/const_hweight.h>
 #include <asm-generic/bitops/lock.h>
diff --git a/arch/sparc/include/asm/btext.h b/arch/sparc/include/asm/btext.h
index 9b2bc6b6ed0a..75a32b109e15 100644
--- a/arch/sparc/include/asm/btext.h
+++ b/arch/sparc/include/asm/btext.h
@@ -1,6 +1,6 @@
 #ifndef _SPARC_BTEXT_H
 #define _SPARC_BTEXT_H
 
-extern int btext_find_display(void);
+int btext_find_display(void);
 
 #endif /* _SPARC_BTEXT_H */
diff --git a/arch/sparc/include/asm/bug.h b/arch/sparc/include/asm/bug.h
index 6bd9f43cb5a5..eaa8f8d38125 100644
--- a/arch/sparc/include/asm/bug.h
+++ b/arch/sparc/include/asm/bug.h
@@ -5,7 +5,7 @@
 #include <linux/compiler.h>
 
 #ifdef CONFIG_DEBUG_BUGVERBOSE
-extern void do_BUG(const char *file, int line);
+void do_BUG(const char *file, int line);
 #define BUG() do {                                      \
         do_BUG(__FILE__, __LINE__);                     \
         __builtin_trap();                               \
@@ -20,6 +20,6 @@ extern void do_BUG(const char *file, int line);
 #include <asm-generic/bug.h>
 
 struct pt_regs;
-extern void die_if_kernel(char *str, struct pt_regs *regs) __attribute__ ((noreturn));
+void __noreturn die_if_kernel(char *str, struct pt_regs *regs);
 
 #endif
diff --git a/arch/sparc/include/asm/cacheflush_32.h b/arch/sparc/include/asm/cacheflush_32.h
index bb014c24f318..12164006181c 100644
--- a/arch/sparc/include/asm/cacheflush_32.h
+++ b/arch/sparc/include/asm/cacheflush_32.h
@@ -36,7 +36,7 @@
 #define flush_page_for_dma(addr) \
         sparc32_cachetlb_ops->page_for_dma(addr)
 
-extern void sparc_flush_page_to_ram(struct page *page);
+void sparc_flush_page_to_ram(struct page *page);
 
 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
 #define flush_dcache_page(page)                 sparc_flush_page_to_ram(page)
@@ -51,8 +51,8 @@ extern void sparc_flush_page_to_ram(struct page *page);
  * way the windows are all clean for the next process and the stack
  * frames are up to date.
  */
-extern void flush_user_windows(void);
-extern void kill_user_windows(void);
-extern void flushw_all(void);
+void flush_user_windows(void);
+void kill_user_windows(void);
+void flushw_all(void);
 
 #endif /* _SPARC_CACHEFLUSH_H */
diff --git a/arch/sparc/include/asm/cacheflush_64.h b/arch/sparc/include/asm/cacheflush_64.h
index 301736d9e7a1..38965379e350 100644
--- a/arch/sparc/include/asm/cacheflush_64.h
+++ b/arch/sparc/include/asm/cacheflush_64.h
@@ -10,7 +10,7 @@
 /* Cache flush operations. */
 #define flushw_all()    __asm__ __volatile__("flushw")
 
-extern void __flushw_user(void);
+void __flushw_user(void);
 #define flushw_user() __flushw_user()
 
 #define flush_user_windows flushw_user
@@ -30,29 +30,29 @@ extern void __flushw_user(void);
  * use block commit stores (which invalidate icache lines) during
  * module load, so we need this.
  */
-extern void flush_icache_range(unsigned long start, unsigned long end);
-extern void __flush_icache_page(unsigned long);
+void flush_icache_range(unsigned long start, unsigned long end);
+void __flush_icache_page(unsigned long);
 
-extern void __flush_dcache_page(void *addr, int flush_icache);
-extern void flush_dcache_page_impl(struct page *page);
+void __flush_dcache_page(void *addr, int flush_icache);
+void flush_dcache_page_impl(struct page *page);
 #ifdef CONFIG_SMP
-extern void smp_flush_dcache_page_impl(struct page *page, int cpu);
-extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page);
+void smp_flush_dcache_page_impl(struct page *page, int cpu);
+void flush_dcache_page_all(struct mm_struct *mm, struct page *page);
 #else
 #define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page)
 #define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page)
 #endif
 
-extern void __flush_dcache_range(unsigned long start, unsigned long end);
+void __flush_dcache_range(unsigned long start, unsigned long end);
 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
-extern void flush_dcache_page(struct page *page);
+void flush_dcache_page(struct page *page);
 
 #define flush_icache_page(vma, pg)      do { } while(0)
 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
 
-extern void flush_ptrace_access(struct vm_area_struct *, struct page *,
-                                unsigned long uaddr, void *kaddr,
-                                unsigned long len, int write);
+void flush_ptrace_access(struct vm_area_struct *, struct page *,
+                         unsigned long uaddr, void *kaddr,
+                         unsigned long len, int write);
 
 #define copy_to_user_page(vma, page, vaddr, dst, src, len)              \
         do {                                                            \
diff --git a/arch/sparc/include/asm/checksum_32.h b/arch/sparc/include/asm/checksum_32.h
index 04471dc64847..426b2389a1c2 100644
--- a/arch/sparc/include/asm/checksum_32.h
+++ b/arch/sparc/include/asm/checksum_32.h
@@ -29,7 +29,7 @@
  *
  * it's best to have buff aligned on a 32-bit boundary
  */
-extern __wsum csum_partial(const void *buff, int len, __wsum sum);
+__wsum csum_partial(const void *buff, int len, __wsum sum);
 
 /* the same as csum_partial, but copies from fs:src while it
  * checksums
@@ -38,7 +38,7 @@ extern __wsum csum_partial(const void *buff, int len, __wsum sum);
  * better 64-bit) boundary
  */
 
-extern unsigned int __csum_partial_copy_sparc_generic (const unsigned char *, unsigned char *);
+unsigned int __csum_partial_copy_sparc_generic (const unsigned char *, unsigned char *);
 
 static inline __wsum
 csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
diff --git a/arch/sparc/include/asm/checksum_64.h b/arch/sparc/include/asm/checksum_64.h
index 2ff81ae8f3af..b8779a6a5911 100644
--- a/arch/sparc/include/asm/checksum_64.h
+++ b/arch/sparc/include/asm/checksum_64.h
@@ -29,7 +29,7 @@
  *
  * it's best to have buff aligned on a 32-bit boundary
  */
-extern __wsum csum_partial(const void * buff, int len, __wsum sum);
+__wsum csum_partial(const void * buff, int len, __wsum sum);
 
 /* the same as csum_partial, but copies from user space while it
  * checksums
@@ -37,12 +37,12 @@ extern __wsum csum_partial(const void * buff, int len, __wsum sum);
  * here even more important to align src and dst on a 32-bit (or even
  * better 64-bit) boundary
  */
-extern __wsum csum_partial_copy_nocheck(const void *src, void *dst,
-                                              int len, __wsum sum);
+__wsum csum_partial_copy_nocheck(const void *src, void *dst,
+                                 int len, __wsum sum);
 
-extern long __csum_partial_copy_from_user(const void __user *src,
-                                          void *dst, int len,
-                                          __wsum sum);
+long __csum_partial_copy_from_user(const void __user *src,
+                                   void *dst, int len,
+                                   __wsum sum);
 
 static inline __wsum
 csum_partial_copy_from_user(const void __user *src,
@@ -59,9 +59,9 @@ csum_partial_copy_from_user(const void __user *src,
  *      Copy and checksum to user
  */
 #define HAVE_CSUM_COPY_USER
-extern long __csum_partial_copy_to_user(const void *src,
-                                        void __user *dst, int len,
-                                          __wsum sum);
+long __csum_partial_copy_to_user(const void *src,
+                                 void __user *dst, int len,
+                                 __wsum sum);
 
 static inline __wsum
 csum_and_copy_to_user(const void *src,
@@ -77,7 +77,7 @@ csum_and_copy_to_user(const void *src,
 /* ihl is always 5 or greater, almost always is 5, and iph is word aligned
  * the majority of the time.
  */
-extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
 
 /* Fold a partial checksum without adding pseudo headers. */
 static inline __sum16 csum_fold(__wsum sum)
@@ -96,9 +96,9 @@ static inline __sum16 csum_fold(__wsum sum)
 }
 
 static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
-                                               unsigned int len,
-                                               unsigned short proto,
-                                               __wsum sum)
+                                        unsigned int len,
+                                        unsigned short proto,
+                                        __wsum sum)
 {
         __asm__ __volatile__(
 "       addcc           %1, %0, %0\n"
@@ -116,9 +116,9 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
  * returns a 16-bit checksum, already complemented
  */
 static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
-                                                   unsigned short len,
-                                                   unsigned short proto,
-                                                   __wsum sum)
+                                        unsigned short len,
+                                        unsigned short proto,
+                                        __wsum sum)
 {
         return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
 }
diff --git a/arch/sparc/include/asm/cmpxchg_32.h b/arch/sparc/include/asm/cmpxchg_32.h
index 1fae1a02e3c2..32c29a133f9d 100644
--- a/arch/sparc/include/asm/cmpxchg_32.h
+++ b/arch/sparc/include/asm/cmpxchg_32.h
@@ -20,7 +20,7 @@ static inline unsigned long xchg_u32(__volatile__ unsigned long *m, unsigned lon
         return val;
 }
 
-extern void __xchg_called_with_bad_pointer(void);
+void __xchg_called_with_bad_pointer(void);
 
 static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr, int size)
 {
@@ -45,9 +45,9 @@ static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr, int
 #define __HAVE_ARCH_CMPXCHG     1
 
 /* bug catcher for when unsupported size is used - won't link */
-extern void __cmpxchg_called_with_bad_pointer(void);
+void __cmpxchg_called_with_bad_pointer(void);
 /* we only need to support cmpxchg of a u32 on sparc */
-extern unsigned long __cmpxchg_u32(volatile u32 *m, u32 old, u32 new_);
+unsigned long __cmpxchg_u32(volatile u32 *m, u32 old, u32 new_);
 
 /* don't worry...optimizer will get rid of most of this */
 static inline unsigned long
diff --git a/arch/sparc/include/asm/cmpxchg_64.h b/arch/sparc/include/asm/cmpxchg_64.h
index 4adefe8e2885..0e1ed6cfbf68 100644
--- a/arch/sparc/include/asm/cmpxchg_64.h
+++ b/arch/sparc/include/asm/cmpxchg_64.h
@@ -42,7 +42,7 @@ static inline unsigned long xchg64(__volatile__ unsigned long *m, unsigned long
 
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
 
-extern void __xchg_called_with_bad_pointer(void);
+void __xchg_called_with_bad_pointer(void);
 
 static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr,
                                        int size)
@@ -91,7 +91,7 @@ __cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new)
 
 /* This function doesn't exist, so you'll get a linker error
    if something tries to do an invalid cmpxchg().  */
-extern void __cmpxchg_called_with_bad_pointer(void);
+void __cmpxchg_called_with_bad_pointer(void);
 
 static inline unsigned long
 __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
diff --git a/arch/sparc/include/asm/cpudata.h b/arch/sparc/include/asm/cpudata.h
index b5976de7cacd..128b56b08676 100644
--- a/arch/sparc/include/asm/cpudata.h
+++ b/arch/sparc/include/asm/cpudata.h
@@ -1,5 +1,15 @@
 #ifndef ___ASM_SPARC_CPUDATA_H
 #define ___ASM_SPARC_CPUDATA_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/threads.h>
+#include <linux/percpu.h>
+
+extern const struct seq_operations cpuinfo_op;
+
+#endif /* !(__ASSEMBLY__) */
+
 #if defined(__sparc__) && defined(__arch64__)
 #include <asm/cpudata_64.h>
 #else
diff --git a/arch/sparc/include/asm/cpudata_64.h b/arch/sparc/include/asm/cpudata_64.h
index 050ef35b9dcf..0e594076912c 100644
--- a/arch/sparc/include/asm/cpudata_64.h
+++ b/arch/sparc/include/asm/cpudata_64.h
@@ -8,9 +8,6 @@
 
 #ifndef __ASSEMBLY__
 
-#include <linux/percpu.h>
-#include <linux/threads.h>
-
 typedef struct {
         /* Dcache line 1 */
         unsigned int    __softirq_pending; /* must be 1st, see rtrap.S */
@@ -35,8 +32,6 @@ DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data);
 #define cpu_data(__cpu)         per_cpu(__cpu_data, (__cpu))
 #define local_cpu_data()        __get_cpu_var(__cpu_data)
 
-extern const struct seq_operations cpuinfo_op;
-
 #endif /* !(__ASSEMBLY__) */
 
 #include <asm/trap_block.h>
diff --git a/arch/sparc/include/asm/delay_32.h b/arch/sparc/include/asm/delay_32.h
index bc9aba2bead6..3fb8ca144b4f 100644
--- a/arch/sparc/include/asm/delay_32.h
+++ b/arch/sparc/include/asm/delay_32.h
@@ -20,8 +20,8 @@ static inline void __delay(unsigned long loops)
 }
 
 /* This is too messy with inline asm on the Sparc. */
-extern void __udelay(unsigned long usecs, unsigned long lpj);
-extern void __ndelay(unsigned long nsecs, unsigned long lpj);
+void __udelay(unsigned long usecs, unsigned long lpj);
+void __ndelay(unsigned long nsecs, unsigned long lpj);
 
 #ifdef CONFIG_SMP
 #define __udelay_val    cpu_data(smp_processor_id()).udelay_val
diff --git a/arch/sparc/include/asm/delay_64.h b/arch/sparc/include/asm/delay_64.h
index a77aa622d762..0ba5424856d8 100644
--- a/arch/sparc/include/asm/delay_64.h
+++ b/arch/sparc/include/asm/delay_64.h
@@ -8,8 +8,8 @@
 
 #ifndef __ASSEMBLY__
 
-extern void __delay(unsigned long loops);
-extern void udelay(unsigned long usecs);
+void __delay(unsigned long loops);
+void udelay(unsigned long usecs);
 #define mdelay(n)       udelay((n) * 1000)
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/sparc/include/asm/device.h b/arch/sparc/include/asm/device.h
index daa6a8a5e9cd..bb3f0b0c6754 100644
--- a/arch/sparc/include/asm/device.h
+++ b/arch/sparc/include/asm/device.h
@@ -19,7 +19,7 @@ struct dev_archdata {
         int                     numa_node;
 };
 
-extern void of_propagate_archdata(struct platform_device *bus);
+void of_propagate_archdata(struct platform_device *bus);
 
 struct pdev_archdata {
         struct resource         resource[PROMREG_MAX];
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 05fe53f5346e..1ee02710b2dc 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -7,7 +7,7 @@
 
 #define DMA_ERROR_CODE  (~(dma_addr_t)0x0)
 
-extern int dma_supported(struct device *dev, u64 mask);
+int dma_supported(struct device *dev, u64 mask);
 
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
diff --git a/arch/sparc/include/asm/ebus_dma.h b/arch/sparc/include/asm/ebus_dma.h
index f07a5b541c98..fcfb4948147f 100644
--- a/arch/sparc/include/asm/ebus_dma.h
+++ b/arch/sparc/include/asm/ebus_dma.h
@@ -22,14 +22,14 @@ struct ebus_dma_info {
         unsigned char   name[64];
 };
 
-extern int ebus_dma_register(struct ebus_dma_info *p);
-extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
-extern void ebus_dma_unregister(struct ebus_dma_info *p);
-extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
+int ebus_dma_register(struct ebus_dma_info *p);
+int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
+void ebus_dma_unregister(struct ebus_dma_info *p);
+int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
                             size_t len);
-extern void ebus_dma_prepare(struct ebus_dma_info *p, int write);
-extern unsigned int ebus_dma_residue(struct ebus_dma_info *p);
-extern unsigned int ebus_dma_addr(struct ebus_dma_info *p);
-extern void ebus_dma_enable(struct ebus_dma_info *p, int on);
+void ebus_dma_prepare(struct ebus_dma_info *p, int write);
+unsigned int ebus_dma_residue(struct ebus_dma_info *p);
+unsigned int ebus_dma_addr(struct ebus_dma_info *p);
+void ebus_dma_enable(struct ebus_dma_info *p, int on);
 
 #endif /* __ASM_SPARC_EBUS_DMA_H */
diff --git a/arch/sparc/include/asm/floppy_32.h b/arch/sparc/include/asm/floppy_32.h
index fb3f16954c69..071b83e52f15 100644
--- a/arch/sparc/include/asm/floppy_32.h
+++ b/arch/sparc/include/asm/floppy_32.h
@@ -9,11 +9,12 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 
-#include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/idprom.h>
 #include <asm/oplib.h>
 #include <asm/auxio.h>
+#include <asm/setup.h>
+#include <asm/page.h>
 #include <asm/irq.h>
 
 /* We don't need no stinkin' I/O port allocation crap. */
@@ -49,7 +50,6 @@ struct sun_flpy_controller {
 
 /* You'll only ever find one controller on a SparcStation anyways. */
 static struct sun_flpy_controller *sun_fdc = NULL;
-extern volatile unsigned char *fdc_status;
 
 struct sun_floppy_ops {
         unsigned char (*fd_inb)(int port);
@@ -212,13 +212,6 @@ static void sun_82077_fd_outb(unsigned char value, int port)
  * underruns.  If non-zero, doing_pdma encodes the direction of
  * the transfer for debugging.  1=read 2=write
  */
-extern char *pdma_vaddr;
-extern unsigned long pdma_size;
-extern volatile int doing_pdma;
-
-/* This is software state */
-extern char *pdma_base;
-extern unsigned long pdma_areasize;
 
 /* Common routines to all controller types on the Sparc. */
 static inline void virtual_dma_init(void)
@@ -263,8 +256,7 @@ static inline void sun_fd_enable_dma(void)
         pdma_areasize = pdma_size;
 }
 
-extern int sparc_floppy_request_irq(unsigned int irq,
-                                    irq_handler_t irq_handler);
+int sparc_floppy_request_irq(unsigned int irq, irq_handler_t irq_handler);
 
 static int sun_fd_request_irq(void)
 {
diff --git a/arch/sparc/include/asm/floppy_64.h b/arch/sparc/include/asm/floppy_64.h
index 7c90c50c200d..625756406a7e 100644
--- a/arch/sparc/include/asm/floppy_64.h
+++ b/arch/sparc/include/asm/floppy_64.h
@@ -296,7 +296,7 @@ struct sun_pci_dma_op {
 static struct sun_pci_dma_op sun_pci_dma_current = { -1U, 0, 0, NULL};
 static struct sun_pci_dma_op sun_pci_dma_pending = { -1U, 0, 0, NULL};
 
-extern irqreturn_t floppy_interrupt(int irq, void *dev_id);
+irqreturn_t floppy_interrupt(int irq, void *dev_id);
 
 static unsigned char sun_pci_fd_inb(unsigned long port)
 {
diff --git a/arch/sparc/include/asm/ftrace.h b/arch/sparc/include/asm/ftrace.h
index b0f18e9893db..9ec94ad116fb 100644
--- a/arch/sparc/include/asm/ftrace.h
+++ b/arch/sparc/include/asm/ftrace.h
@@ -6,7 +6,7 @@
 #define MCOUNT_INSN_SIZE        4 /* sizeof mcount call */
 
 #ifndef __ASSEMBLY__
-extern void _mcount(void);
+void _mcount(void);
 #endif
 
 #endif
@@ -22,4 +22,8 @@ struct dyn_arch_ftrace {
 };
 #endif /*  CONFIG_DYNAMIC_FTRACE */
 
+unsigned long prepare_ftrace_return(unsigned long parent,
+                                    unsigned long self_addr,
+                                    unsigned long frame_pointer);
+
 #endif /* _ASM_SPARC64_FTRACE */
diff --git a/arch/sparc/include/asm/highmem.h b/arch/sparc/include/asm/highmem.h
index 4f9e15c757e2..92ded294a4ec 100644
--- a/arch/sparc/include/asm/highmem.h
+++ b/arch/sparc/include/asm/highmem.h
@@ -31,7 +31,7 @@ extern unsigned long highstart_pfn, highend_pfn;
 extern pgprot_t kmap_prot;
 extern pte_t *pkmap_page_table;
 
-extern void kmap_init(void) __init;
+void kmap_init(void) __init;
 
 /*
  * Right now we initialize only a single pte table. It can be extended
@@ -49,8 +49,8 @@ extern void kmap_init(void) __init;
 
 #define PKMAP_END (PKMAP_ADDR(LAST_PKMAP))
 
-extern void *kmap_high(struct page *page);
-extern void kunmap_high(struct page *page);
+void *kmap_high(struct page *page);
+void kunmap_high(struct page *page);
 
 static inline void *kmap(struct page *page)
 {
@@ -68,8 +68,8 @@ static inline void kunmap(struct page *page)
         kunmap_high(page);
 }
 
-extern void *kmap_atomic(struct page *page);
-extern void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
 
 #define flush_cache_kmaps()     flush_cache_all()
 
diff --git a/arch/sparc/include/asm/hvtramp.h b/arch/sparc/include/asm/hvtramp.h
index b2b9b947b3a4..04b56f862bbe 100644
--- a/arch/sparc/include/asm/hvtramp.h
+++ b/arch/sparc/include/asm/hvtramp.h
@@ -19,7 +19,7 @@ struct hvtramp_descr {
         struct hvtramp_mapping  maps[1];
 };
 
-extern void hv_cpu_startup(unsigned long hvdescr_pa);
+void hv_cpu_startup(unsigned long hvdescr_pa);
 
 #endif
 
diff --git a/arch/sparc/include/asm/hypervisor.h b/arch/sparc/include/asm/hypervisor.h
index ca121f0fa3ec..94b39caea3eb 100644
--- a/arch/sparc/include/asm/hypervisor.h
+++ b/arch/sparc/include/asm/hypervisor.h
@@ -98,7 +98,7 @@
 #define HV_FAST_MACH_EXIT               0x00
 
 #ifndef __ASSEMBLY__
-extern void sun4v_mach_exit(unsigned long exit_code);
+void sun4v_mach_exit(unsigned long exit_code);
 #endif
 
 /* Domain services.  */
@@ -127,9 +127,9 @@ extern void sun4v_mach_exit(unsigned long exit_code);
 #define HV_FAST_MACH_DESC               0x01
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_mach_desc(unsigned long buffer_pa,
-                                     unsigned long buf_len,
-                                     unsigned long *real_buf_len);
+unsigned long sun4v_mach_desc(unsigned long buffer_pa,
+                              unsigned long buf_len,
+                              unsigned long *real_buf_len);
 #endif
 
 /* mach_sir()
@@ -148,7 +148,7 @@ extern unsigned long sun4v_mach_desc(unsigned long buffer_pa,
 #define HV_FAST_MACH_SIR                0x02
 
 #ifndef __ASSEMBLY__
-extern void sun4v_mach_sir(void);
+void sun4v_mach_sir(void);
 #endif
 
 /* mach_set_watchdog()
@@ -204,8 +204,8 @@ extern void sun4v_mach_sir(void);
 #define HV_FAST_MACH_SET_WATCHDOG       0x05
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_mach_set_watchdog(unsigned long timeout,
-                                             unsigned long *orig_timeout);
+unsigned long sun4v_mach_set_watchdog(unsigned long timeout,
+                                      unsigned long *orig_timeout);
 #endif
 
 /* CPU services.
@@ -250,10 +250,10 @@ extern unsigned long sun4v_mach_set_watchdog(unsigned long timeout,
 #define HV_FAST_CPU_START               0x10
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_cpu_start(unsigned long cpuid,
-                                     unsigned long pc,
-                                     unsigned long rtba,
-                                     unsigned long arg0);
+unsigned long sun4v_cpu_start(unsigned long cpuid,
+                              unsigned long pc,
+                              unsigned long rtba,
+                              unsigned long arg0);
 #endif
 
 /* cpu_stop()
@@ -278,7 +278,7 @@ extern unsigned long sun4v_cpu_start(unsigned long cpuid,
 #define HV_FAST_CPU_STOP                0x11
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_cpu_stop(unsigned long cpuid);
+unsigned long sun4v_cpu_stop(unsigned long cpuid);
 #endif
 
 /* cpu_yield()
@@ -295,7 +295,7 @@ extern unsigned long sun4v_cpu_stop(unsigned long cpuid);
 #define HV_FAST_CPU_YIELD               0x12
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_cpu_yield(void);
+unsigned long sun4v_cpu_yield(void);
 #endif
 
 /* cpu_qconf()
@@ -341,9 +341,9 @@ extern unsigned long sun4v_cpu_yield(void);
 #define  HV_CPU_QUEUE_NONRES_ERROR       0x3f
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_cpu_qconf(unsigned long type,
-                                     unsigned long queue_paddr,
-                                     unsigned long num_queue_entries);
+unsigned long sun4v_cpu_qconf(unsigned long type,
+                              unsigned long queue_paddr,
+                              unsigned long num_queue_entries);
 #endif
 
 /* cpu_qinfo()
@@ -394,7 +394,9 @@ extern unsigned long sun4v_cpu_qconf(unsigned long type,
 #define HV_FAST_CPU_MONDO_SEND          0x42
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_cpu_mondo_send(unsigned long cpu_count, unsigned long cpu_list_pa, unsigned long mondo_block_pa);
+unsigned long sun4v_cpu_mondo_send(unsigned long cpu_count,
+                                   unsigned long cpu_list_pa,
+                                   unsigned long mondo_block_pa);
 #endif
 
 /* cpu_myid()
@@ -425,7 +427,7 @@ extern unsigned long sun4v_cpu_mondo_send(unsigned long cpu_count, unsigned long
 #define  HV_CPU_STATE_ERROR              0x03
 
 #ifndef __ASSEMBLY__
-extern long sun4v_cpu_state(unsigned long cpuid);
+long sun4v_cpu_state(unsigned long cpuid);
 #endif
 
 /* cpu_set_rtba()
@@ -625,8 +627,8 @@ struct hv_fault_status {
 #define HV_FAST_MMU_TSB_CTX0            0x20
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions,
-                                        unsigned long tsb_desc_ra);
+unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions,
+                                 unsigned long tsb_desc_ra);
 #endif
 
 /* mmu_tsb_ctxnon0()
@@ -710,7 +712,7 @@ extern unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions,
 #define HV_FAST_MMU_DEMAP_ALL           0x24
 
 #ifndef __ASSEMBLY__
-extern void sun4v_mmu_demap_all(void);
+void sun4v_mmu_demap_all(void);
 #endif
 
 /* mmu_map_perm_addr()
@@ -740,10 +742,10 @@ extern void sun4v_mmu_demap_all(void);
 #define HV_FAST_MMU_MAP_PERM_ADDR       0x25
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_mmu_map_perm_addr(unsigned long vaddr,
-                                             unsigned long set_to_zero,
-                                             unsigned long tte,
-                                             unsigned long flags);
+unsigned long sun4v_mmu_map_perm_addr(unsigned long vaddr,
+                                      unsigned long set_to_zero,
+                                      unsigned long tte,
+                                      unsigned long flags);
 #endif
 
 /* mmu_fault_area_conf()
@@ -945,7 +947,7 @@ extern unsigned long sun4v_mmu_map_perm_addr(unsigned long vaddr,
 #define HV_FAST_TOD_GET                 0x50
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_tod_get(unsigned long *time);
+unsigned long sun4v_tod_get(unsigned long *time);
 #endif
 
 /* tod_set()
@@ -962,7 +964,7 @@ extern unsigned long sun4v_tod_get(unsigned long *time);
 #define HV_FAST_TOD_SET                 0x51
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_tod_set(unsigned long time);
+unsigned long sun4v_tod_set(unsigned long time);
 #endif
 
 /* Console services */
@@ -1038,14 +1040,14 @@ extern unsigned long sun4v_tod_set(unsigned long time);
 #define HV_FAST_CONS_WRITE              0x63
 
 #ifndef __ASSEMBLY__
-extern long sun4v_con_getchar(long *status);
-extern long sun4v_con_putchar(long c);
-extern long sun4v_con_read(unsigned long buffer,
-                           unsigned long size,
-                           unsigned long *bytes_read);
-extern unsigned long sun4v_con_write(unsigned long buffer,
-                                     unsigned long size,
-                                     unsigned long *bytes_written);
+long sun4v_con_getchar(long *status);
+long sun4v_con_putchar(long c);
+long sun4v_con_read(unsigned long buffer,
+                    unsigned long size,
+                    unsigned long *bytes_read);
+unsigned long sun4v_con_write(unsigned long buffer,
+                              unsigned long size,
+                              unsigned long *bytes_written);
 #endif
 
 /* mach_set_soft_state()
@@ -1080,8 +1082,8 @@ extern unsigned long sun4v_con_write(unsigned long buffer,
 #define  HV_SOFT_STATE_TRANSITION        0x02
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_mach_set_soft_state(unsigned long soft_state,
-                                               unsigned long msg_string_ra);
+unsigned long sun4v_mach_set_soft_state(unsigned long soft_state,
+                                        unsigned long msg_string_ra);
 #endif
 
 /* mach_get_soft_state()
@@ -1159,20 +1161,20 @@ extern unsigned long sun4v_mach_set_soft_state(unsigned long soft_state,
 #define HV_FAST_SVC_CLRSTATUS           0x84
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_svc_send(unsigned long svc_id,
-                                    unsigned long buffer,
-                                    unsigned long buffer_size,
-                                    unsigned long *sent_bytes);
-extern unsigned long sun4v_svc_recv(unsigned long svc_id,
-                                    unsigned long buffer,
-                                    unsigned long buffer_size,
-                                    unsigned long *recv_bytes);
-extern unsigned long sun4v_svc_getstatus(unsigned long svc_id,
-                                         unsigned long *status_bits);
-extern unsigned long sun4v_svc_setstatus(unsigned long svc_id,
-                                         unsigned long status_bits);
-extern unsigned long sun4v_svc_clrstatus(unsigned long svc_id,
-                                         unsigned long status_bits);
+unsigned long sun4v_svc_send(unsigned long svc_id,
+                             unsigned long buffer,
+                             unsigned long buffer_size,
+                             unsigned long *sent_bytes);
+unsigned long sun4v_svc_recv(unsigned long svc_id,
+                             unsigned long buffer,
+                             unsigned long buffer_size,
+                             unsigned long *recv_bytes);
+unsigned long sun4v_svc_getstatus(unsigned long svc_id,
+                                  unsigned long *status_bits);
+unsigned long sun4v_svc_setstatus(unsigned long svc_id,
+                                  unsigned long status_bits);
+unsigned long sun4v_svc_clrstatus(unsigned long svc_id,
+                                  unsigned long status_bits);
 #endif
 
 /* Trap trace services.
@@ -1458,8 +1460,8 @@ struct hv_trap_trace_entry {
 #define HV_FAST_INTR_DEVINO2SYSINO      0xa0
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_devino_to_sysino(unsigned long devhandle,
-                                            unsigned long devino);
+unsigned long sun4v_devino_to_sysino(unsigned long devhandle,
+                                     unsigned long devino);
 #endif
 
 /* intr_getenabled()
@@ -1476,7 +1478,7 @@ extern unsigned long sun4v_devino_to_sysino(unsigned long devhandle,
 #define HV_FAST_INTR_GETENABLED         0xa1
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_intr_getenabled(unsigned long sysino);
+unsigned long sun4v_intr_getenabled(unsigned long sysino);
 #endif
 
 /* intr_setenabled()
@@ -1492,7 +1494,8 @@ extern unsigned long sun4v_intr_getenabled(unsigned long sysino);
 #define HV_FAST_INTR_SETENABLED         0xa2
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_intr_setenabled(unsigned long sysino, unsigned long intr_enabled);
+unsigned long sun4v_intr_setenabled(unsigned long sysino,
+                                    unsigned long intr_enabled);
 #endif
 
 /* intr_getstate()
@@ -1508,7 +1511,7 @@ extern unsigned long sun4v_intr_setenabled(unsigned long sysino, unsigned long i
 #define HV_FAST_INTR_GETSTATE           0xa3
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_intr_getstate(unsigned long sysino);
+unsigned long sun4v_intr_getstate(unsigned long sysino);
 #endif
 
 /* intr_setstate()
@@ -1528,7 +1531,7 @@ extern unsigned long sun4v_intr_getstate(unsigned long sysino);
 #define HV_FAST_INTR_SETSTATE           0xa4
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_intr_setstate(unsigned long sysino, unsigned long intr_state);
+unsigned long sun4v_intr_setstate(unsigned long sysino, unsigned long intr_state);
 #endif
 
 /* intr_gettarget()
@@ -1546,7 +1549,7 @@ extern unsigned long sun4v_intr_setstate(unsigned long sysino, unsigned long int
 #define HV_FAST_INTR_GETTARGET          0xa5
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_intr_gettarget(unsigned long sysino);
+unsigned long sun4v_intr_gettarget(unsigned long sysino);
 #endif
 
 /* intr_settarget()
@@ -1563,7 +1566,7 @@ extern unsigned long sun4v_intr_gettarget(unsigned long sysino);
 #define HV_FAST_INTR_SETTARGET          0xa6
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_intr_settarget(unsigned long sysino, unsigned long cpuid);
+unsigned long sun4v_intr_settarget(unsigned long sysino, unsigned long cpuid);
 #endif
 
 /* vintr_get_cookie()
@@ -1647,30 +1650,30 @@ extern unsigned long sun4v_intr_settarget(unsigned long sysino, unsigned long cp
 #define HV_FAST_VINTR_SET_TARGET        0xae
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_vintr_get_cookie(unsigned long dev_handle,
-                                            unsigned long dev_ino,
-                                            unsigned long *cookie);
-extern unsigned long sun4v_vintr_set_cookie(unsigned long dev_handle,
-                                            unsigned long dev_ino,
-                                            unsigned long cookie);
-extern unsigned long sun4v_vintr_get_valid(unsigned long dev_handle,
-                                           unsigned long dev_ino,
-                                           unsigned long *valid);
-extern unsigned long sun4v_vintr_set_valid(unsigned long dev_handle,
-                                           unsigned long dev_ino,
-                                           unsigned long valid);
-extern unsigned long sun4v_vintr_get_state(unsigned long dev_handle,
-                                           unsigned long dev_ino,
-                                           unsigned long *state);
-extern unsigned long sun4v_vintr_set_state(unsigned long dev_handle,
-                                           unsigned long dev_ino,
-                                           unsigned long state);
-extern unsigned long sun4v_vintr_get_target(unsigned long dev_handle,
-                                            unsigned long dev_ino,
-                                            unsigned long *cpuid);
-extern unsigned long sun4v_vintr_set_target(unsigned long dev_handle,
-                                            unsigned long dev_ino,
-                                            unsigned long cpuid);
+unsigned long sun4v_vintr_get_cookie(unsigned long dev_handle,
+                                     unsigned long dev_ino,
+                                     unsigned long *cookie);
+unsigned long sun4v_vintr_set_cookie(unsigned long dev_handle,
+                                     unsigned long dev_ino,
+                                     unsigned long cookie);
+unsigned long sun4v_vintr_get_valid(unsigned long dev_handle,
+                                    unsigned long dev_ino,
+                                    unsigned long *valid);
+unsigned long sun4v_vintr_set_valid(unsigned long dev_handle,
+                                    unsigned long dev_ino,
+                                    unsigned long valid);
+unsigned long sun4v_vintr_get_state(unsigned long dev_handle,
+                                    unsigned long dev_ino,
+                                    unsigned long *state);
+unsigned long sun4v_vintr_set_state(unsigned long dev_handle,
+                                    unsigned long dev_ino,
+                                    unsigned long state);
+unsigned long sun4v_vintr_get_target(unsigned long dev_handle,
+                                     unsigned long dev_ino,
+                                     unsigned long *cpuid);
+unsigned long sun4v_vintr_set_target(unsigned long dev_handle,
+                                     unsigned long dev_ino,
+                                     unsigned long cpuid);
 #endif
 
 /* PCI IO services.
@@ -2627,50 +2630,50 @@ struct ldc_mtable_entry {
 #define HV_FAST_LDC_REVOKE              0xef
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_ldc_tx_qconf(unsigned long channel,
-                                        unsigned long ra,
-                                        unsigned long num_entries);
-extern unsigned long sun4v_ldc_tx_qinfo(unsigned long channel,
-                                        unsigned long *ra,
-                                        unsigned long *num_entries);
-extern unsigned long sun4v_ldc_tx_get_state(unsigned long channel,
-                                            unsigned long *head_off,
-                                            unsigned long *tail_off,
-                                            unsigned long *chan_state);
-extern unsigned long sun4v_ldc_tx_set_qtail(unsigned long channel,
-                                            unsigned long tail_off);
-extern unsigned long sun4v_ldc_rx_qconf(unsigned long channel,
-                                        unsigned long ra,
-                                        unsigned long num_entries);
-extern unsigned long sun4v_ldc_rx_qinfo(unsigned long channel,
-                                        unsigned long *ra,
-                                        unsigned long *num_entries);
-extern unsigned long sun4v_ldc_rx_get_state(unsigned long channel,
-                                            unsigned long *head_off,
-                                            unsigned long *tail_off,
-                                            unsigned long *chan_state);
-extern unsigned long sun4v_ldc_rx_set_qhead(unsigned long channel,
-                                            unsigned long head_off);
-extern unsigned long sun4v_ldc_set_map_table(unsigned long channel,
-                                             unsigned long ra,
-                                             unsigned long num_entries);
-extern unsigned long sun4v_ldc_get_map_table(unsigned long channel,
-                                             unsigned long *ra,
-                                             unsigned long *num_entries);
-extern unsigned long sun4v_ldc_copy(unsigned long channel,
-                                    unsigned long dir_code,
-                                    unsigned long tgt_raddr,
-                                    unsigned long lcl_raddr,
-                                    unsigned long len,
-                                    unsigned long *actual_len);
-extern unsigned long sun4v_ldc_mapin(unsigned long channel,
-                                     unsigned long cookie,
-                                     unsigned long *ra,
-                                     unsigned long *perm);
-extern unsigned long sun4v_ldc_unmap(unsigned long ra);
-extern unsigned long sun4v_ldc_revoke(unsigned long channel,
-                                      unsigned long cookie,
-                                      unsigned long mte_cookie);
+unsigned long sun4v_ldc_tx_qconf(unsigned long channel,
+                                 unsigned long ra,
+                                 unsigned long num_entries);
+unsigned long sun4v_ldc_tx_qinfo(unsigned long channel,
+                                 unsigned long *ra,
+                                 unsigned long *num_entries);
+unsigned long sun4v_ldc_tx_get_state(unsigned long channel,
+                                     unsigned long *head_off,
+                                     unsigned long *tail_off,
+                                     unsigned long *chan_state);
+unsigned long sun4v_ldc_tx_set_qtail(unsigned long channel,
+                                     unsigned long tail_off);
+unsigned long sun4v_ldc_rx_qconf(unsigned long channel,
+                                 unsigned long ra,
+                                 unsigned long num_entries);
+unsigned long sun4v_ldc_rx_qinfo(unsigned long channel,
+                                 unsigned long *ra,
+                                 unsigned long *num_entries);
+unsigned long sun4v_ldc_rx_get_state(unsigned long channel,
+                                     unsigned long *head_off,
+                                     unsigned long *tail_off,
+                                     unsigned long *chan_state);
+unsigned long sun4v_ldc_rx_set_qhead(unsigned long channel,
+                                     unsigned long head_off);
+unsigned long sun4v_ldc_set_map_table(unsigned long channel,
+                                      unsigned long ra,
+                                      unsigned long num_entries);
+unsigned long sun4v_ldc_get_map_table(unsigned long channel,
+                                      unsigned long *ra,
+                                      unsigned long *num_entries);
+unsigned long sun4v_ldc_copy(unsigned long channel,
+                             unsigned long dir_code,
+                             unsigned long tgt_raddr,
+                             unsigned long lcl_raddr,
+                             unsigned long len,
+                             unsigned long *actual_len);
+unsigned long sun4v_ldc_mapin(unsigned long channel,
+                              unsigned long cookie,
+                              unsigned long *ra,
+                              unsigned long *perm);
+unsigned long sun4v_ldc_unmap(unsigned long ra);
+unsigned long sun4v_ldc_revoke(unsigned long channel,
+                               unsigned long cookie,
+                               unsigned long mte_cookie);
 #endif
 
 /* Performance counter services.  */
@@ -2727,14 +2730,14 @@ extern unsigned long sun4v_ldc_revoke(unsigned long channel,
 #define HV_FAST_N2_SET_PERFREG          0x105
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_niagara_getperf(unsigned long reg,
-                                           unsigned long *val);
-extern unsigned long sun4v_niagara_setperf(unsigned long reg,
-                                           unsigned long val);
-extern unsigned long sun4v_niagara2_getperf(unsigned long reg,
-                                            unsigned long *val);
-extern unsigned long sun4v_niagara2_setperf(unsigned long reg,
-                                            unsigned long val);
+unsigned long sun4v_niagara_getperf(unsigned long reg,
+                                    unsigned long *val);
+unsigned long sun4v_niagara_setperf(unsigned long reg,
+                                    unsigned long val);
+unsigned long sun4v_niagara2_getperf(unsigned long reg,
+                                     unsigned long *val);
+unsigned long sun4v_niagara2_setperf(unsigned long reg,
+                                     unsigned long val);
 #endif
 
 /* MMU statistics services.
@@ -2829,8 +2832,8 @@ struct hv_mmu_statistics {
 #define HV_FAST_MMUSTAT_INFO            0x103
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_mmustat_conf(unsigned long ra, unsigned long *orig_ra);
-extern unsigned long sun4v_mmustat_info(unsigned long *ra);
+unsigned long sun4v_mmustat_conf(unsigned long ra, unsigned long *orig_ra);
+unsigned long sun4v_mmustat_info(unsigned long *ra);
 #endif
 
 /* NCS crypto services  */
@@ -2919,9 +2922,9 @@ struct hv_ncs_qtail_update_arg {
 #define HV_FAST_NCS_REQUEST             0x110
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_ncs_request(unsigned long request,
-                                       unsigned long arg_ra,
-                                       unsigned long arg_size);
+unsigned long sun4v_ncs_request(unsigned long request,
+                                unsigned long arg_ra,
+                                unsigned long arg_size);
 #endif
 
 #define HV_FAST_FIRE_GET_PERFREG        0x120
@@ -2930,18 +2933,18 @@ extern unsigned long sun4v_ncs_request(unsigned long request,
 #define HV_FAST_REBOOT_DATA_SET         0x172
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_reboot_data_set(unsigned long ra,
-                                           unsigned long len);
+unsigned long sun4v_reboot_data_set(unsigned long ra,
+                                    unsigned long len);
 #endif
 
 #define HV_FAST_VT_GET_PERFREG          0x184
 #define HV_FAST_VT_SET_PERFREG          0x185
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_vt_get_perfreg(unsigned long reg_num,
-                                          unsigned long *reg_val);
-extern unsigned long sun4v_vt_set_perfreg(unsigned long reg_num,
-                                          unsigned long reg_val);
+unsigned long sun4v_vt_get_perfreg(unsigned long reg_num,
+                                   unsigned long *reg_val);
+unsigned long sun4v_vt_set_perfreg(unsigned long reg_num,
+                                   unsigned long reg_val);
 #endif
 
 /* Function numbers for HV_CORE_TRAP.  */
@@ -2978,21 +2981,21 @@ extern unsigned long sun4v_vt_set_perfreg(unsigned long reg_num,
 #define HV_GRP_DIAG                     0x0300
 
 #ifndef __ASSEMBLY__
-extern unsigned long sun4v_get_version(unsigned long group,
-                                       unsigned long *major,
-                                       unsigned long *minor);
-extern unsigned long sun4v_set_version(unsigned long group,
-                                       unsigned long major,
-                                       unsigned long minor,
-                                       unsigned long *actual_minor);
-
-extern int sun4v_hvapi_register(unsigned long group, unsigned long major,
-                                unsigned long *minor);
-extern void sun4v_hvapi_unregister(unsigned long group);
-extern int sun4v_hvapi_get(unsigned long group,
-                           unsigned long *major,
-                           unsigned long *minor);
-extern void sun4v_hvapi_init(void);
+unsigned long sun4v_get_version(unsigned long group,
+                                unsigned long *major,
+                                unsigned long *minor);
+unsigned long sun4v_set_version(unsigned long group,
+                                unsigned long major,
+                                unsigned long minor,
+                                unsigned long *actual_minor);
+
+int sun4v_hvapi_register(unsigned long group, unsigned long major,
+                         unsigned long *minor);
+void sun4v_hvapi_unregister(unsigned long group);
+int sun4v_hvapi_get(unsigned long group,
+                    unsigned long *major,
+                    unsigned long *minor);
+void sun4v_hvapi_init(void);
 #endif
 
 #endif /* !(_SPARC64_HYPERVISOR_H) */
diff --git a/arch/sparc/include/asm/idprom.h b/arch/sparc/include/asm/idprom.h
index 6976aa2439c6..3793f7f91c42 100644
--- a/arch/sparc/include/asm/idprom.h
+++ b/arch/sparc/include/asm/idprom.h
@@ -20,6 +20,6 @@ struct idprom {
 };
 
 extern struct idprom *idprom;
-extern void idprom_init(void);
+void idprom_init(void);
 
 #endif /* !(_SPARC_IDPROM_H) */
diff --git a/arch/sparc/include/asm/io-unit.h b/arch/sparc/include/asm/io-unit.h
index 01ab2f613e91..04a9701e7202 100644
--- a/arch/sparc/include/asm/io-unit.h
+++ b/arch/sparc/include/asm/io-unit.h
@@ -43,7 +43,7 @@
 struct iounit_struct {
         unsigned long           bmap[(IOUNIT_DMA_SIZE >> (PAGE_SHIFT + 3)) / sizeof(unsigned long)];
         spinlock_t              lock;
-        iopte_t                 *page_table;
+        iopte_t __iomem         *page_table;
         unsigned long           rotor[3];
         unsigned long           limit[4];
 };
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index c1acbd891cbc..9f532902627c 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -2,191 +2,94 @@
 #define __SPARC_IO_H
 
 #include <linux/kernel.h>
-#include <linux/types.h>
 #include <linux/ioport.h>  /* struct resource */
 
-#include <asm/page.h>      /* IO address mapping routines need this */
-#include <asm-generic/pci_iomap.h>
-
-#define page_to_phys(page)      (page_to_pfn(page) << PAGE_SHIFT)
-
-static inline u32 flip_dword (u32 l)
-{
-        return ((l&0xff)<<24) | (((l>>8)&0xff)<<16) | (((l>>16)&0xff)<<8)| ((l>>24)&0xff);
-}
-
-static inline u16 flip_word (u16 w)
-{
-        return ((w&0xff) << 8) | ((w>>8)&0xff);
-}
-
-#define mmiowb()
-
-/*
- * Memory mapped I/O to PCI
- */
-
-static inline u8 __raw_readb(const volatile void __iomem *addr)
-{
-        return *(__force volatile u8 *)addr;
-}
-
-static inline u16 __raw_readw(const volatile void __iomem *addr)
-{
-        return *(__force volatile u16 *)addr;
-}
-
-static inline u32 __raw_readl(const volatile void __iomem *addr)
-{
-        return *(__force volatile u32 *)addr;
-}
+#define readb_relaxed(__addr)   readb(__addr)
+#define readw_relaxed(__addr)   readw(__addr)
+#define readl_relaxed(__addr)   readl(__addr)
 
-static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
-{
-        *(__force volatile u8 *)addr = b;
-}
+#define IO_SPACE_LIMIT 0xffffffff
 
-static inline void __raw_writew(u16 w, volatile void __iomem *addr)
-{
-        *(__force volatile u16 *)addr = w;
-}
+#define memset_io(d,c,sz)     _memset_io(d,c,sz)
+#define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz)
+#define memcpy_toio(d,s,sz)   _memcpy_toio(d,s,sz)
 
-static inline void __raw_writel(u32 l, volatile void __iomem *addr)
-{
-        *(__force volatile u32 *)addr = l;
-}
+#include <asm-generic/io.h>
 
-static inline u8 __readb(const volatile void __iomem *addr)
+static inline void _memset_io(volatile void __iomem *dst,
+                              int c, __kernel_size_t n)
 {
-        return *(__force volatile u8 *)addr;
-}
+        volatile void __iomem *d = dst;
 
-static inline u16 __readw(const volatile void __iomem *addr)
-{
-        return flip_word(*(__force volatile u16 *)addr);
+        while (n--) {
+                writeb(c, d);
+                d++;
+        }
 }
 
-static inline u32 __readl(const volatile void __iomem *addr)
+static inline void _memcpy_fromio(void *dst, const volatile void __iomem *src,
+                                  __kernel_size_t n)
 {
-        return flip_dword(*(__force volatile u32 *)addr);
-}
+        char *d = dst;
 
-static inline void __writeb(u8 b, volatile void __iomem *addr)
-{
-        *(__force volatile u8 *)addr = b;
+        while (n--) {
+                char tmp = readb(src);
+                *d++ = tmp;
+                src++;
+        }
 }
 
-static inline void __writew(u16 w, volatile void __iomem *addr)
+static inline void _memcpy_toio(volatile void __iomem *dst, const void *src,
+                                __kernel_size_t n)
 {
-        *(__force volatile u16 *)addr = flip_word(w);
-}
+        const char *s = src;
+        volatile void __iomem *d = dst;
 
-static inline void __writel(u32 l, volatile void __iomem *addr)
-{
-        *(__force volatile u32 *)addr = flip_dword(l);
+        while (n--) {
+                char tmp = *s++;
+                writeb(tmp, d);
+                d++;
+        }
 }
 
-#define readb(__addr)           __readb(__addr)
-#define readw(__addr)           __readw(__addr)
-#define readl(__addr)           __readl(__addr)
-#define readb_relaxed(__addr)   readb(__addr)
-#define readw_relaxed(__addr)   readw(__addr)
-#define readl_relaxed(__addr)   readl(__addr)
-
-#define writeb(__b, __addr)     __writeb((__b),(__addr))
-#define writew(__w, __addr)     __writew((__w),(__addr))
-#define writel(__l, __addr)     __writel((__l),(__addr))
-
-/*
- * I/O space operations
- *
- * Arrangement on a Sun is somewhat complicated.
- *
- * First of all, we want to use standard Linux drivers
- * for keyboard, PC serial, etc. These drivers think
- * they access I/O space and use inb/outb.
- * On the other hand, EBus bridge accepts PCI *memory*
- * cycles and converts them into ISA *I/O* cycles.
- * Ergo, we want inb & outb to generate PCI memory cycles.
- *
- * If we want to issue PCI *I/O* cycles, we do this
- * with a low 64K fixed window in PCIC. This window gets
- * mapped somewhere into virtual kernel space and we
- * can use inb/outb again.
- */
-#define inb_local(__addr)       __readb((void __iomem *)(unsigned long)(__addr))
-#define inb(__addr)             __readb((void __iomem *)(unsigned long)(__addr))
-#define inw(__addr)             __readw((void __iomem *)(unsigned long)(__addr))
-#define inl(__addr)             __readl((void __iomem *)(unsigned long)(__addr))
-
-#define outb_local(__b, __addr) __writeb(__b, (void __iomem *)(unsigned long)(__addr))
-#define outb(__b, __addr)       __writeb(__b, (void __iomem *)(unsigned long)(__addr))
-#define outw(__w, __addr)       __writew(__w, (void __iomem *)(unsigned long)(__addr))
-#define outl(__l, __addr)       __writel(__l, (void __iomem *)(unsigned long)(__addr))
-
-#define inb_p(__addr)           inb(__addr)
-#define outb_p(__b, __addr)     outb(__b, __addr)
-#define inw_p(__addr)           inw(__addr)
-#define outw_p(__w, __addr)     outw(__w, __addr)
-#define inl_p(__addr)           inl(__addr)
-#define outl_p(__l, __addr)     outl(__l, __addr)
-
-void outsb(unsigned long addr, const void *src, unsigned long cnt);
-void outsw(unsigned long addr, const void *src, unsigned long cnt);
-void outsl(unsigned long addr, const void *src, unsigned long cnt);
-void insb(unsigned long addr, void *dst, unsigned long count);
-void insw(unsigned long addr, void *dst, unsigned long count);
-void insl(unsigned long addr, void *dst, unsigned long count);
-
-#define IO_SPACE_LIMIT 0xffffffff
-
 /*
  * SBus accessors.
  *
  * SBus has only one, memory mapped, I/O space.
  * We do not need to flip bytes for SBus of course.
  */
-static inline u8 _sbus_readb(const volatile void __iomem *addr)
+static inline u8 sbus_readb(const volatile void __iomem *addr)
 {
         return *(__force volatile u8 *)addr;
 }
 
-static inline u16 _sbus_readw(const volatile void __iomem *addr)
+static inline u16 sbus_readw(const volatile void __iomem *addr)
 {
         return *(__force volatile u16 *)addr;
 }
 
-static inline u32 _sbus_readl(const volatile void __iomem *addr)
+static inline u32 sbus_readl(const volatile void __iomem *addr)
 {
         return *(__force volatile u32 *)addr;
 }
 
-static inline void _sbus_writeb(u8 b, volatile void __iomem *addr)
+static inline void sbus_writeb(u8 b, volatile void __iomem *addr)
 {
         *(__force volatile u8 *)addr = b;
 }
 
-static inline void _sbus_writew(u16 w, volatile void __iomem *addr)
+static inline void sbus_writew(u16 w, volatile void __iomem *addr)
 {
         *(__force volatile u16 *)addr = w;
 }
 
-static inline void _sbus_writel(u32 l, volatile void __iomem *addr)
+static inline void sbus_writel(u32 l, volatile void __iomem *addr)
 {
         *(__force volatile u32 *)addr = l;
 }
 
-/*
- * The only reason for #define's is to hide casts to unsigned long.
- */
-#define sbus_readb(__addr)              _sbus_readb(__addr)
-#define sbus_readw(__addr)              _sbus_readw(__addr)
-#define sbus_readl(__addr)              _sbus_readl(__addr)
-#define sbus_writeb(__b, __addr)        _sbus_writeb(__b, __addr)
-#define sbus_writew(__w, __addr)        _sbus_writew(__w, __addr)
-#define sbus_writel(__l, __addr)        _sbus_writel(__l, __addr)
-
-static inline void sbus_memset_io(volatile void __iomem *__dst, int c, __kernel_size_t n)
+static inline void sbus_memset_io(volatile void __iomem *__dst, int c,
+                                  __kernel_size_t n)
 {
         while(n--) {
                 sbus_writeb(c, __dst);
@@ -194,22 +97,9 @@ static inline void sbus_memset_io(volatile void __iomem *__dst, int c, __kernel_
         }
 }
 
-static inline void
-_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
-{
-        volatile void __iomem *d = dst;
-
-        while (n--) {
-                writeb(c, d);
-                d++;
-        }
-}
-
-#define memset_io(d,c,sz)       _memset_io(d,c,sz)
-
-static inline void
-_sbus_memcpy_fromio(void *dst, const volatile void __iomem *src,
-                    __kernel_size_t n)
+static inline void sbus_memcpy_fromio(void *dst,
+                                      const volatile void __iomem *src,
+                                      __kernel_size_t n)
 {
         char *d = dst;
 
@@ -220,25 +110,9 @@ _sbus_memcpy_fromio(void *dst, const volatile void __iomem *src,
         }
 }
 
-#define sbus_memcpy_fromio(d, s, sz)    _sbus_memcpy_fromio(d, s, sz)
-
-static inline void
-_memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n)
-{
-        char *d = dst;
-
-        while (n--) {
-                char tmp = readb(src);
-                *d++ = tmp;
-                src++;
-        }
-}
-
-#define memcpy_fromio(d,s,sz)   _memcpy_fromio(d,s,sz)
-
-static inline void
-_sbus_memcpy_toio(volatile void __iomem *dst, const void *src,
-                  __kernel_size_t n)
+static inline void sbus_memcpy_toio(volatile void __iomem *dst,
+                                    const void *src,
+                                    __kernel_size_t n)
 {
         const char *s = src;
         volatile void __iomem *d = dst;
@@ -250,81 +124,26 @@ _sbus_memcpy_toio(volatile void __iomem *dst, const void *src,
         }
 }
 
-#define sbus_memcpy_toio(d, s, sz)      _sbus_memcpy_toio(d, s, sz)
-
-static inline void
-_memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n)
-{
-        const char *s = src;
-        volatile void __iomem *d = dst;
-
-        while (n--) {
-                char tmp = *s++;
-                writeb(tmp, d);
-                d++;
-        }
-}
-
-#define memcpy_toio(d,s,sz)     _memcpy_toio(d,s,sz)
-
 #ifdef __KERNEL__
 
 /*
  * Bus number may be embedded in the higher bits of the physical address.
  * This is why we have no bus number argument to ioremap().
  */
-extern void __iomem *ioremap(unsigned long offset, unsigned long size);
+void __iomem *ioremap(unsigned long offset, unsigned long size);
 #define ioremap_nocache(X,Y)    ioremap((X),(Y))
 #define ioremap_wc(X,Y)         ioremap((X),(Y))
-extern void iounmap(volatile void __iomem *addr);
-
-#define ioread8(X)                      readb(X)
-#define ioread16(X)                     readw(X)
-#define ioread16be(X)                   __raw_readw(X)
-#define ioread32(X)                     readl(X)
-#define ioread32be(X)                   __raw_readl(X)
-#define iowrite8(val,X)                 writeb(val,X)
-#define iowrite16(val,X)                writew(val,X)
-#define iowrite16be(val,X)              __raw_writew(val,X)
-#define iowrite32(val,X)                writel(val,X)
-#define iowrite32be(val,X)              __raw_writel(val,X)
-
-static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
-{
-        insb((unsigned long __force)port, buf, count);
-}
-static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count)
-{
-        insw((unsigned long __force)port, buf, count);
-}
-
-static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count)
-{
-        insl((unsigned long __force)port, buf, count);
-}
-
-static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count)
-{
-        outsb((unsigned long __force)port, buf, count);
-}
-
-static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count)
-{
-        outsw((unsigned long __force)port, buf, count);
-}
-
-static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count)
-{
-        outsl((unsigned long __force)port, buf, count);
-}
+void iounmap(volatile void __iomem *addr);
 
 /* Create a virtual mapping cookie for an IO port range */
-extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
-extern void ioport_unmap(void __iomem *);
+void __iomem *ioport_map(unsigned long port, unsigned int nr);
+void ioport_unmap(void __iomem *);
 
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
+void pci_iounmap(struct pci_dev *dev, void __iomem *);
+
+
 
 /*
  * At the moment, we do not use CMOS_READ anywhere outside of rtc.c,
@@ -343,21 +162,11 @@ static inline int sbus_can_burst64(void)
         return 0; /* actually, sparc_cpu_model==sun4d */
 }
 struct device;
-extern void sbus_set_sbus64(struct device *, int);
+void sbus_set_sbus64(struct device *, int);
 
 #endif
 
 #define __ARCH_HAS_NO_PAGE_ZERO_MAPPED          1
 
-/*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
-#define xlate_dev_mem_ptr(p)    __va(p)
-
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)   p
 
 #endif /* !(__SPARC_IO_H) */
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 09b0b88aeb2a..05381c3a4228 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -15,7 +15,6 @@
 
 /* BIO layer definitions. */
 extern unsigned long kern_base, kern_size;
-#define page_to_phys(page)      (page_to_pfn(page) << PAGE_SHIFT)
 
 static inline u8 _inb(unsigned long addr)
 {
@@ -91,12 +90,12 @@ static inline void _outl(u32 l, unsigned long addr)
 #define inl_p(__addr)           inl(__addr)
 #define outl_p(__l, __addr)     outl(__l, __addr)
 
-extern void outsb(unsigned long, const void *, unsigned long);
-extern void outsw(unsigned long, const void *, unsigned long);
-extern void outsl(unsigned long, const void *, unsigned long);
-extern void insb(unsigned long, void *, unsigned long);
-extern void insw(unsigned long, void *, unsigned long);
-extern void insl(unsigned long, void *, unsigned long);
+void outsb(unsigned long, const void *, unsigned long);
+void outsw(unsigned long, const void *, unsigned long);
+void outsl(unsigned long, const void *, unsigned long);
+void insb(unsigned long, void *, unsigned long);
+void insw(unsigned long, void *, unsigned long);
+void insl(unsigned long, void *, unsigned long);
 
 static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
 {
@@ -509,12 +508,12 @@ static inline void iounmap(volatile void __iomem *addr)
 #define iowrite32be(val,X)              __raw_writel(val,X)
 
 /* Create a virtual mapping cookie for an IO port range */
-extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
-extern void ioport_unmap(void __iomem *);
+void __iomem *ioport_map(unsigned long port, unsigned int nr);
+void ioport_unmap(void __iomem *);
 
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
+void pci_iounmap(struct pci_dev *dev, void __iomem *);
 
 static inline int sbus_can_dma_64bit(void)
 {
@@ -525,7 +524,7 @@ static inline int sbus_can_burst64(void)
         return 1;
 }
 struct device;
-extern void sbus_set_sbus64(struct device *, int);
+void sbus_set_sbus64(struct device *, int);
 
 /*
  * Convert a physical pointer to a virtual kernel pointer for /dev/mem
diff --git a/arch/sparc/include/asm/iommu_32.h b/arch/sparc/include/asm/iommu_32.h
index 70c589c05a10..f6c066b52fd6 100644
--- a/arch/sparc/include/asm/iommu_32.h
+++ b/arch/sparc/include/asm/iommu_32.h
@@ -99,7 +99,7 @@ struct iommu_regs {
 #define IOPTE_WAZ           0x00000001 /* Write as zeros */
 
 struct iommu_struct {
-        struct iommu_regs *regs;
+        struct iommu_regs __iomem *regs;
         iopte_t *page_table;
         /* For convenience */
         unsigned long start; /* First managed virtual address */
@@ -108,14 +108,14 @@ struct iommu_struct {
         struct bit_map usemap;
 };
 
-static inline void iommu_invalidate(struct iommu_regs *regs)
+static inline void iommu_invalidate(struct iommu_regs __iomem *regs)
 {
-        regs->tlbflush = 0;
+        sbus_writel(0, &regs->tlbflush);
 }
 
-static inline void iommu_invalidate_page(struct iommu_regs *regs, unsigned long ba)
+static inline void iommu_invalidate_page(struct iommu_regs __iomem *regs, unsigned long ba)
 {
-        regs->pageflush = (ba & PAGE_MASK);
+        sbus_writel(ba & PAGE_MASK, &regs->pageflush);
 }
 
 #endif /* !(_SPARC_IOMMU_H) */
diff --git a/arch/sparc/include/asm/iommu_64.h b/arch/sparc/include/asm/iommu_64.h
index caf798b56191..2b9321ab064d 100644
--- a/arch/sparc/include/asm/iommu_64.h
+++ b/arch/sparc/include/asm/iommu_64.h
@@ -58,8 +58,8 @@ struct strbuf {
         volatile unsigned long  __flushflag_buf[(64+(64-1)) / sizeof(long)];
 };
 
-extern int iommu_table_init(struct iommu *iommu, int tsbsize,
-                            u32 dma_offset, u32 dma_addr_mask,
-                            int numa_node);
+int iommu_table_init(struct iommu *iommu, int tsbsize,
+                     u32 dma_offset, u32 dma_addr_mask,
+                     int numa_node);
 
 #endif /* !(_SPARC64_IOMMU_H) */
diff --git a/arch/sparc/include/asm/irq_32.h b/arch/sparc/include/asm/irq_32.h
index 2ae3acaeb1b3..eecd3d8442c9 100644
--- a/arch/sparc/include/asm/irq_32.h
+++ b/arch/sparc/include/asm/irq_32.h
@@ -16,7 +16,8 @@
 
 #define irq_canonicalize(irq)   (irq)
 
-extern void __init init_IRQ(void);
+void __init init_IRQ(void);
+void __init sun4d_init_sbi_irq(void);
 
 #define NO_IRQ          0xffffffff
 
diff --git a/arch/sparc/include/asm/irq_64.h b/arch/sparc/include/asm/irq_64.h
index abf6afe82ca8..375cffcf7dbd 100644
--- a/arch/sparc/include/asm/irq_64.h
+++ b/arch/sparc/include/asm/irq_64.h
@@ -39,32 +39,32 @@
  */
 #define NR_IRQS    255
 
-extern void irq_install_pre_handler(int irq,
-                                    void (*func)(unsigned int, void *, void *),
-                                    void *arg1, void *arg2);
+void irq_install_pre_handler(int irq,
+                             void (*func)(unsigned int, void *, void *),
+                             void *arg1, void *arg2);
 #define irq_canonicalize(irq)   (irq)
-extern unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap);
-extern unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino);
-extern unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino);
-extern unsigned int sun4v_build_msi(u32 devhandle, unsigned int *irq_p,
-                                    unsigned int msi_devino_start,
-                                    unsigned int msi_devino_end);
-extern void sun4v_destroy_msi(unsigned int irq);
-extern unsigned int sun4u_build_msi(u32 portid, unsigned int *irq_p,
-                                    unsigned int msi_devino_start,
-                                    unsigned int msi_devino_end,
-                                    unsigned long imap_base,
-                                    unsigned long iclr_base);
-extern void sun4u_destroy_msi(unsigned int irq);
-
-extern unsigned char irq_alloc(unsigned int dev_handle,
-                                    unsigned int dev_ino);
+unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap);
+unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino);
+unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino);
+unsigned int sun4v_build_msi(u32 devhandle, unsigned int *irq_p,
+                             unsigned int msi_devino_start,
+                             unsigned int msi_devino_end);
+void sun4v_destroy_msi(unsigned int irq);
+unsigned int sun4u_build_msi(u32 portid, unsigned int *irq_p,
+                             unsigned int msi_devino_start,
+                             unsigned int msi_devino_end,
+                             unsigned long imap_base,
+                             unsigned long iclr_base);
+void sun4u_destroy_msi(unsigned int irq);
+
+unsigned char irq_alloc(unsigned int dev_handle,
+                        unsigned int dev_ino);
 #ifdef CONFIG_PCI_MSI
-extern void irq_free(unsigned int irq);
+void irq_free(unsigned int irq);
 #endif
 
-extern void __init init_IRQ(void);
-extern void fixup_irqs(void);
+void __init init_IRQ(void);
+void fixup_irqs(void);
 
 static inline void set_softint(unsigned long bits)
 {
diff --git a/arch/sparc/include/asm/irqflags_32.h b/arch/sparc/include/asm/irqflags_32.h
index e414c06615c1..71cc284f55c5 100644
--- a/arch/sparc/include/asm/irqflags_32.h
+++ b/arch/sparc/include/asm/irqflags_32.h
@@ -15,9 +15,9 @@
 #include <linux/types.h>
 #include <asm/psr.h>
 
-extern void arch_local_irq_restore(unsigned long);
-extern unsigned long arch_local_irq_save(void);
-extern void arch_local_irq_enable(void);
+void arch_local_irq_restore(unsigned long);
+unsigned long arch_local_irq_save(void);
+void arch_local_irq_enable(void);
 
 static inline notrace unsigned long arch_local_save_flags(void)
 {
diff --git a/arch/sparc/include/asm/kdebug_64.h b/arch/sparc/include/asm/kdebug_64.h
index feb3578e12c4..04465de8f3b5 100644
--- a/arch/sparc/include/asm/kdebug_64.h
+++ b/arch/sparc/include/asm/kdebug_64.h
@@ -3,7 +3,7 @@
 
 struct pt_regs;
 
-extern void bad_trap(struct pt_regs *, long);
+void bad_trap(struct pt_regs *, long);
 
 /* Grossly misnamed. */
 enum die_val {
diff --git a/arch/sparc/include/asm/kgdb.h b/arch/sparc/include/asm/kgdb.h
index b6ef301d05bf..47366af7a589 100644
--- a/arch/sparc/include/asm/kgdb.h
+++ b/arch/sparc/include/asm/kgdb.h
@@ -28,9 +28,12 @@ enum regnames {
 #define NUMREGBYTES             ((GDB_CSR + 1) * 4)
 #else
 #define NUMREGBYTES             ((GDB_Y + 1) * 8)
+
+struct pt_regs;
+asmlinkage void kgdb_trap(unsigned long trap_level, struct pt_regs *regs);
 #endif
 
-extern void arch_kgdb_breakpoint(void);
+void arch_kgdb_breakpoint(void);
 
 #define BREAK_INSTR_SIZE        4
 #define CACHE_FLUSH_IS_SAFE     1
diff --git a/arch/sparc/include/asm/kprobes.h b/arch/sparc/include/asm/kprobes.h
index 5879d71afdaa..a145d798e112 100644
--- a/arch/sparc/include/asm/kprobes.h
+++ b/arch/sparc/include/asm/kprobes.h
@@ -43,7 +43,9 @@ struct kprobe_ctlblk {
         struct prev_kprobe prev_kprobe;
 };
 
-extern int kprobe_exceptions_notify(struct notifier_block *self,
-                                    unsigned long val, void *data);
-extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
+int kprobe_exceptions_notify(struct notifier_block *self,
+                             unsigned long val, void *data);
+int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
+asmlinkage void __kprobes kprobe_trap(unsigned long trap_level,
+                                      struct pt_regs *regs);
 #endif /* _SPARC64_KPROBES_H */
diff --git a/arch/sparc/include/asm/ldc.h b/arch/sparc/include/asm/ldc.h
index bdb524a7b814..c8c67f621f4f 100644
--- a/arch/sparc/include/asm/ldc.h
+++ b/arch/sparc/include/asm/ldc.h
@@ -4,9 +4,9 @@
 #include <asm/hypervisor.h>
 
 extern int ldom_domaining_enabled;
-extern void ldom_set_var(const char *var, const char *value);
-extern void ldom_reboot(const char *boot_command);
-extern void ldom_power_off(void);
+void ldom_set_var(const char *var, const char *value);
+void ldom_reboot(const char *boot_command);
+void ldom_power_off(void);
 
 /* The event handler will be evoked when link state changes
  * or data becomes available on the receive side.
@@ -51,30 +51,30 @@ struct ldc_channel_config {
 struct ldc_channel;
 
 /* Allocate state for a channel.  */
-extern struct ldc_channel *ldc_alloc(unsigned long id,
-                                     const struct ldc_channel_config *cfgp,
-                                     void *event_arg);
+struct ldc_channel *ldc_alloc(unsigned long id,
+                              const struct ldc_channel_config *cfgp,
+                              void *event_arg);
 
 /* Shut down and free state for a channel.  */
-extern void ldc_free(struct ldc_channel *lp);
+void ldc_free(struct ldc_channel *lp);
 
 /* Register TX and RX queues of the link with the hypervisor.  */
-extern int ldc_bind(struct ldc_channel *lp, const char *name);
+int ldc_bind(struct ldc_channel *lp, const char *name);
 
 /* For non-RAW protocols we need to complete a handshake before
  * communication can proceed.  ldc_connect() does that, if the
  * handshake completes successfully, an LDC_EVENT_UP event will
  * be sent up to the driver.
  */
-extern int ldc_connect(struct ldc_channel *lp);
-extern int ldc_disconnect(struct ldc_channel *lp);
+int ldc_connect(struct ldc_channel *lp);
+int ldc_disconnect(struct ldc_channel *lp);
 
-extern int ldc_state(struct ldc_channel *lp);
+int ldc_state(struct ldc_channel *lp);
 
 /* Read and write operations.  Only valid when the link is up.  */
-extern int ldc_write(struct ldc_channel *lp, const void *buf,
-                     unsigned int size);
-extern int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size);
+int ldc_write(struct ldc_channel *lp, const void *buf,
+              unsigned int size);
+int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size);
 
 #define LDC_MAP_SHADOW  0x01
 #define LDC_MAP_DIRECT  0x02
@@ -92,22 +92,22 @@ struct ldc_trans_cookie {
 };
 
 struct scatterlist;
-extern int ldc_map_sg(struct ldc_channel *lp,
-                      struct scatterlist *sg, int num_sg,
-                      struct ldc_trans_cookie *cookies, int ncookies,
-                      unsigned int map_perm);
+int ldc_map_sg(struct ldc_channel *lp,
+               struct scatterlist *sg, int num_sg,
+               struct ldc_trans_cookie *cookies, int ncookies,
+               unsigned int map_perm);
 
-extern int ldc_map_single(struct ldc_channel *lp,
-                          void *buf, unsigned int len,
-                          struct ldc_trans_cookie *cookies, int ncookies,
-                          unsigned int map_perm);
+int ldc_map_single(struct ldc_channel *lp,
+                   void *buf, unsigned int len,
+                   struct ldc_trans_cookie *cookies, int ncookies,
+                   unsigned int map_perm);
 
-extern void ldc_unmap(struct ldc_channel *lp, struct ldc_trans_cookie *cookies,
-                      int ncookies);
+void ldc_unmap(struct ldc_channel *lp, struct ldc_trans_cookie *cookies,
+               int ncookies);
 
-extern int ldc_copy(struct ldc_channel *lp, int copy_dir,
-                    void *buf, unsigned int len, unsigned long offset,
-                    struct ldc_trans_cookie *cookies, int ncookies);
+int ldc_copy(struct ldc_channel *lp, int copy_dir,
+             void *buf, unsigned int len, unsigned long offset,
+             struct ldc_trans_cookie *cookies, int ncookies);
 
 static inline int ldc_get_dring_entry(struct ldc_channel *lp,
                                       void *buf, unsigned int len,
@@ -127,12 +127,12 @@ static inline int ldc_put_dring_entry(struct ldc_channel *lp,
         return ldc_copy(lp, LDC_COPY_OUT, buf, len, offset, cookies, ncookies);
 }
 
-extern void *ldc_alloc_exp_dring(struct ldc_channel *lp, unsigned int len,
-                                 struct ldc_trans_cookie *cookies,
-                                 int *ncookies, unsigned int map_perm);
+void *ldc_alloc_exp_dring(struct ldc_channel *lp, unsigned int len,
+                          struct ldc_trans_cookie *cookies,
+                          int *ncookies, unsigned int map_perm);
 
-extern void ldc_free_exp_dring(struct ldc_channel *lp, void *buf,
-                               unsigned int len,
-                               struct ldc_trans_cookie *cookies, int ncookies);
+void ldc_free_exp_dring(struct ldc_channel *lp, void *buf,
+                        unsigned int len,
+                        struct ldc_trans_cookie *cookies, int ncookies);
 
 #endif /* _SPARC64_LDC_H */
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index c2f6ff6d7a35..204771cd74a5 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -82,8 +82,8 @@ static inline unsigned long leon_load_reg(unsigned long paddr)
 #define LEON_BYPASS_LOAD_PA(x)      leon_load_reg((unsigned long)(x))
 #define LEON_BYPASS_STORE_PA(x, v)  leon_store_reg((unsigned long)(x), (unsigned long)(v))
 
-extern void leon_switch_mm(void);
-extern void leon_init_IRQ(void);
+void leon_switch_mm(void);
+void leon_init_IRQ(void);
 
 static inline unsigned long sparc_leon3_get_dcachecfg(void)
 {
@@ -196,14 +196,14 @@ static inline int sparc_leon3_cpuid(void)
 #ifndef __ASSEMBLY__
 struct vm_area_struct;
 
-extern unsigned long leon_swprobe(unsigned long vaddr, unsigned long *paddr);
-extern void leon_flush_icache_all(void);
-extern void leon_flush_dcache_all(void);
-extern void leon_flush_cache_all(void);
-extern void leon_flush_tlb_all(void);
+unsigned long leon_swprobe(unsigned long vaddr, unsigned long *paddr);
+void leon_flush_icache_all(void);
+void leon_flush_dcache_all(void);
+void leon_flush_cache_all(void);
+void leon_flush_tlb_all(void);
 extern int leon_flush_during_switch;
-extern int leon_flush_needed(void);
-extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);
+int leon_flush_needed(void);
+void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);
 
 /* struct that hold LEON3 cache configuration registers */
 struct leon3_cacheregs {
@@ -217,29 +217,29 @@ struct leon3_cacheregs {
 
 struct device_node;
 struct task_struct;
-extern unsigned int leon_build_device_irq(unsigned int real_irq,
-                                           irq_flow_handler_t flow_handler,
-                                           const char *name, int do_ack);
-extern void leon_update_virq_handling(unsigned int virq,
-                              irq_flow_handler_t flow_handler,
-                              const char *name, int do_ack);
-extern void leon_init_timers(void);
-extern void leon_trans_init(struct device_node *dp);
-extern void leon_node_init(struct device_node *dp, struct device_node ***nextp);
-extern void init_leon(void);
-extern void poke_leonsparc(void);
-extern void leon3_getCacheRegs(struct leon3_cacheregs *regs);
+unsigned int leon_build_device_irq(unsigned int real_irq,
+                                   irq_flow_handler_t flow_handler,
+                                   const char *name, int do_ack);
+void leon_update_virq_handling(unsigned int virq,
+                               irq_flow_handler_t flow_handler,
+                               const char *name, int do_ack);
+void leon_init_timers(void);
+void leon_trans_init(struct device_node *dp);
+void leon_node_init(struct device_node *dp, struct device_node ***nextp);
+void init_leon(void);
+void poke_leonsparc(void);
+void leon3_getCacheRegs(struct leon3_cacheregs *regs);
 extern int leon3_ticker_irq;
 
 #ifdef CONFIG_SMP
-extern int leon_smp_nrcpus(void);
-extern void leon_clear_profile_irq(int cpu);
-extern void leon_smp_done(void);
-extern void leon_boot_cpus(void);
-extern int leon_boot_one_cpu(int i, struct task_struct *);
+int leon_smp_nrcpus(void);
+void leon_clear_profile_irq(int cpu);
+void leon_smp_done(void);
+void leon_boot_cpus(void);
+int leon_boot_one_cpu(int i, struct task_struct *);
 void leon_init_smp(void);
 void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
-extern irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused);
+irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused);
 
 extern unsigned int smpleon_ipi[];
 extern unsigned int linux_trap_ipi15_leon[];
diff --git a/arch/sparc/include/asm/leon_pci.h b/arch/sparc/include/asm/leon_pci.h
index bfd3ab3092b5..049d067ed8be 100644
--- a/arch/sparc/include/asm/leon_pci.h
+++ b/arch/sparc/include/asm/leon_pci.h
@@ -16,7 +16,7 @@ struct leon_pci_info {
         int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
 };
 
-extern void leon_pci_init(struct platform_device *ofdev,
-                                struct leon_pci_info *info);
+void leon_pci_init(struct platform_device *ofdev,
+                   struct leon_pci_info *info);
 
 #endif /* _ASM_LEON_PCI_H_ */
diff --git a/arch/sparc/include/asm/mc146818rtc.h b/arch/sparc/include/asm/mc146818rtc.h
index 67ed9e3a0235..d8e72f37dc4b 100644
--- a/arch/sparc/include/asm/mc146818rtc.h
+++ b/arch/sparc/include/asm/mc146818rtc.h
@@ -1,5 +1,10 @@
 #ifndef ___ASM_SPARC_MC146818RTC_H
 #define ___ASM_SPARC_MC146818RTC_H
+
+#include <linux/spinlock.h>
+
+extern spinlock_t rtc_lock;
+
 #if defined(__sparc__) && defined(__arch64__)
 #include <asm/mc146818rtc_64.h>
 #else
diff --git a/arch/sparc/include/asm/mdesc.h b/arch/sparc/include/asm/mdesc.h
index 139097f3a67b..aebeb88f70db 100644
--- a/arch/sparc/include/asm/mdesc.h
+++ b/arch/sparc/include/asm/mdesc.h
@@ -12,13 +12,13 @@ struct mdesc_handle;
  * the first argument to all of the operational calls that work
  * on mdescs.
  */
-extern struct mdesc_handle *mdesc_grab(void);
-extern void mdesc_release(struct mdesc_handle *);
+struct mdesc_handle *mdesc_grab(void);
+void mdesc_release(struct mdesc_handle *);
 
 #define MDESC_NODE_NULL         (~(u64)0)
 
-extern u64 mdesc_node_by_name(struct mdesc_handle *handle,
-                              u64 from_node, const char *name);
+u64 mdesc_node_by_name(struct mdesc_handle *handle,
+                       u64 from_node, const char *name);
 #define mdesc_for_each_node_by_name(__hdl, __node, __name) \
         for (__node = mdesc_node_by_name(__hdl, MDESC_NODE_NULL, __name); \
              (__node) != MDESC_NODE_NULL; \
@@ -34,9 +34,9 @@ extern u64 mdesc_node_by_name(struct mdesc_handle *handle,
  *
  * These same rules apply to mdesc_node_name().
  */
-extern const void *mdesc_get_property(struct mdesc_handle *handle,
-                                      u64 node, const char *name, int *lenp);
-extern const char *mdesc_node_name(struct mdesc_handle *hp, u64 node);
+const void *mdesc_get_property(struct mdesc_handle *handle,
+                               u64 node, const char *name, int *lenp);
+const char *mdesc_node_name(struct mdesc_handle *hp, u64 node);
 
 /* MD arc iteration, the standard sequence is:
  *
@@ -50,16 +50,16 @@ extern const char *mdesc_node_name(struct mdesc_handle *hp, u64 node);
 #define MDESC_ARC_TYPE_FWD      "fwd"
 #define MDESC_ARC_TYPE_BACK     "back"
 
-extern u64 mdesc_next_arc(struct mdesc_handle *handle, u64 from,
-                          const char *arc_type);
+u64 mdesc_next_arc(struct mdesc_handle *handle, u64 from,
+                   const char *arc_type);
 #define mdesc_for_each_arc(__arc, __hdl, __node, __type) \
         for (__arc = mdesc_next_arc(__hdl, __node, __type); \
              (__arc) != MDESC_NODE_NULL; \
              __arc = mdesc_next_arc(__hdl, __arc, __type))
 
-extern u64 mdesc_arc_target(struct mdesc_handle *hp, u64 arc);
+u64 mdesc_arc_target(struct mdesc_handle *hp, u64 arc);
 
-extern void mdesc_update(void);
+void mdesc_update(void);
 
 struct mdesc_notifier_client {
         void (*add)(struct mdesc_handle *handle, u64 node);
@@ -69,12 +69,12 @@ struct mdesc_notifier_client {
         struct mdesc_notifier_client    *next;
 };
 
-extern void mdesc_register_notifier(struct mdesc_notifier_client *client);
+void mdesc_register_notifier(struct mdesc_notifier_client *client);
 
-extern void mdesc_fill_in_cpu_data(cpumask_t *mask);
-extern void mdesc_populate_present_mask(cpumask_t *mask);
-extern void mdesc_get_page_sizes(cpumask_t *mask, unsigned long *pgsz_mask);
+void mdesc_fill_in_cpu_data(cpumask_t *mask);
+void mdesc_populate_present_mask(cpumask_t *mask);
+void mdesc_get_page_sizes(cpumask_t *mask, unsigned long *pgsz_mask);
 
-extern void sun4v_mdesc_init(void);
+void sun4v_mdesc_init(void);
 
 #endif
diff --git a/arch/sparc/include/asm/mmu_64.h b/arch/sparc/include/asm/mmu_64.h
index f668797ae234..70067ce184b1 100644
--- a/arch/sparc/include/asm/mmu_64.h
+++ b/arch/sparc/include/asm/mmu_64.h
@@ -67,9 +67,9 @@ struct tsb {
         unsigned long pte;
 } __attribute__((aligned(TSB_ENTRY_ALIGNMENT)));
 
-extern void __tsb_insert(unsigned long ent, unsigned long tag, unsigned long pte);
-extern void tsb_flush(unsigned long ent, unsigned long tag);
-extern void tsb_init(struct tsb *tsb, unsigned long size);
+void __tsb_insert(unsigned long ent, unsigned long tag, unsigned long pte);
+void tsb_flush(unsigned long ent, unsigned long tag);
+void tsb_init(struct tsb *tsb, unsigned long size);
 
 struct tsb_config {
         struct tsb              *tsb;
diff --git a/arch/sparc/include/asm/mmu_context_64.h b/arch/sparc/include/asm/mmu_context_64.h
index 3d528f06e4b0..b84be675e507 100644
--- a/arch/sparc/include/asm/mmu_context_64.h
+++ b/arch/sparc/include/asm/mmu_context_64.h
@@ -17,20 +17,20 @@ extern spinlock_t ctx_alloc_lock;
 extern unsigned long tlb_context_cache;
 extern unsigned long mmu_context_bmap[];
 
-extern void get_new_mmu_context(struct mm_struct *mm);
+void get_new_mmu_context(struct mm_struct *mm);
 #ifdef CONFIG_SMP
-extern void smp_new_mmu_context_version(void);
+void smp_new_mmu_context_version(void);
 #else
 #define smp_new_mmu_context_version() do { } while (0)
 #endif
 
-extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
-extern void destroy_context(struct mm_struct *mm);
+int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
+void destroy_context(struct mm_struct *mm);
 
-extern void __tsb_context_switch(unsigned long pgd_pa,
-                                 struct tsb_config *tsb_base,
-                                 struct tsb_config *tsb_huge,
-                                 unsigned long tsb_descr_pa);
+void __tsb_context_switch(unsigned long pgd_pa,
+                          struct tsb_config *tsb_base,
+                          struct tsb_config *tsb_huge,
+                          unsigned long tsb_descr_pa);
 
 static inline void tsb_context_switch(struct mm_struct *mm)
 {
@@ -46,9 +46,11 @@ static inline void tsb_context_switch(struct mm_struct *mm)
                              , __pa(&mm->context.tsb_descr[0]));
 }
 
-extern void tsb_grow(struct mm_struct *mm, unsigned long tsb_index, unsigned long mm_rss);
+void tsb_grow(struct mm_struct *mm,
+              unsigned long tsb_index,
+              unsigned long mm_rss);
 #ifdef CONFIG_SMP
-extern void smp_tsb_sync(struct mm_struct *mm);
+void smp_tsb_sync(struct mm_struct *mm);
 #else
 #define smp_tsb_sync(__mm) do { } while (0)
 #endif
@@ -66,7 +68,7 @@ extern void smp_tsb_sync(struct mm_struct *mm);
         : "r" (CTX_HWBITS((__mm)->context)), \
           "r" (SECONDARY_CONTEXT), "i" (ASI_DMMU), "i" (ASI_MMU))
 
-extern void __flush_tlb_mm(unsigned long, unsigned long);
+void __flush_tlb_mm(unsigned long, unsigned long);
 
 /* Switch the current MM context. */
 static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, struct task_struct *tsk)
diff --git a/arch/sparc/include/asm/nmi.h b/arch/sparc/include/asm/nmi.h
index 72e6500e7ab0..26ad2b2607c6 100644
--- a/arch/sparc/include/asm/nmi.h
+++ b/arch/sparc/include/asm/nmi.h
@@ -1,13 +1,13 @@
 #ifndef __NMI_H
 #define __NMI_H
 
-extern int __init nmi_init(void);
-extern void perfctr_irq(int irq, struct pt_regs *regs);
-extern void nmi_adjust_hz(unsigned int new_hz);
+int __init nmi_init(void);
+void perfctr_irq(int irq, struct pt_regs *regs);
+void nmi_adjust_hz(unsigned int new_hz);
 
 extern atomic_t nmi_active;
 
-extern void start_nmi_watchdog(void *unused);
-extern void stop_nmi_watchdog(void *unused);
+void start_nmi_watchdog(void *unused);
+void stop_nmi_watchdog(void *unused);
 
 #endif /* __NMI_H */
diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h
index c72f3045820c..56a09b9d7b1b 100644
--- a/arch/sparc/include/asm/oplib_32.h
+++ b/arch/sparc/include/asm/oplib_32.h
@@ -43,28 +43,28 @@ extern struct linux_nodeops *prom_nodeops;
 /* You must call prom_init() before using any of the library services,
  * preferably as early as possible.  Pass it the romvec pointer.
  */
-extern void prom_init(struct linux_romvec *rom_ptr);
+void prom_init(struct linux_romvec *rom_ptr);
 
 /* Boot argument acquisition, returns the boot command line string. */
-extern char *prom_getbootargs(void);
+char *prom_getbootargs(void);
 
 /* Miscellaneous routines, don't really fit in any category per se. */
 
 /* Reboot the machine with the command line passed. */
-extern void prom_reboot(char *boot_command);
+void prom_reboot(char *boot_command);
 
 /* Evaluate the forth string passed. */
-extern void prom_feval(char *forth_string);
+void prom_feval(char *forth_string);
 
 /* Enter the prom, with possibility of continuation with the 'go'
  * command in newer proms.
  */
-extern void prom_cmdline(void);
+void prom_cmdline(void);
 
 /* Enter the prom, with no chance of continuation for the stand-alone
  * which calls this.
  */
-extern void __noreturn prom_halt(void);
+void __noreturn prom_halt(void);
 
 /* Set the PROM 'sync' callback function to the passed function pointer.
  * When the user gives the 'sync' command at the prom prompt while the
@@ -73,37 +73,37 @@ extern void __noreturn prom_halt(void);
  * XXX The arguments are different on V0 vs. V2->higher proms, grrr! XXX
  */
 typedef void (*sync_func_t)(void);
-extern void prom_setsync(sync_func_t func_ptr);
+void prom_setsync(sync_func_t func_ptr);
 
 /* Acquire the IDPROM of the root node in the prom device tree.  This
  * gets passed a buffer where you would like it stuffed.  The return value
  * is the format type of this idprom or 0xff on error.
  */
-extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
+unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
 
 /* Get the prom major version. */
-extern int prom_version(void);
+int prom_version(void);
 
 /* Get the prom plugin revision. */
-extern int prom_getrev(void);
+int prom_getrev(void);
 
 /* Get the prom firmware revision. */
-extern int prom_getprev(void);
+int prom_getprev(void);
 
 /* Write a buffer of characters to the console. */
-extern void prom_console_write_buf(const char *buf, int len);
+void prom_console_write_buf(const char *buf, int len);
 
 /* Prom's internal routines, don't use in kernel/boot code. */
-extern __printf(1, 2) void prom_printf(const char *fmt, ...);
-extern void prom_write(const char *buf, unsigned int len);
+__printf(1, 2) void prom_printf(const char *fmt, ...);
+void prom_write(const char *buf, unsigned int len);
 
 /* Multiprocessor operations... */
 
 /* Start the CPU with the given device tree node, context table, and context
  * at the passed program counter.
  */
-extern int prom_startcpu(int cpunode, struct linux_prom_registers *context_table,
-                         int context, char *program_counter);
+int prom_startcpu(int cpunode, struct linux_prom_registers *context_table,
+                  int context, char *program_counter);
 
 /* Initialize the memory lists based upon the prom version. */
 void prom_meminit(void);
@@ -111,65 +111,65 @@ void prom_meminit(void);
 /* PROM device tree traversal functions... */
 
 /* Get the child node of the given node, or zero if no child exists. */
-extern phandle prom_getchild(phandle parent_node);
+phandle prom_getchild(phandle parent_node);
 
 /* Get the next sibling node of the given node, or zero if no further
  * siblings exist.
  */
-extern phandle prom_getsibling(phandle node);
+phandle prom_getsibling(phandle node);
 
 /* Get the length, at the passed node, of the given property type.
  * Returns -1 on error (ie. no such property at this node).
  */
-extern int prom_getproplen(phandle thisnode, const char *property);
+int prom_getproplen(phandle thisnode, const char *property);
 
 /* Fetch the requested property using the given buffer.  Returns
  * the number of bytes the prom put into your buffer or -1 on error.
  */
-extern int __must_check prom_getproperty(phandle thisnode, const char *property,
-                                         char *prop_buffer, int propbuf_size);
+int __must_check prom_getproperty(phandle thisnode, const char *property,
+                                  char *prop_buffer, int propbuf_size);
 
 /* Acquire an integer property. */
-extern int prom_getint(phandle node, char *property);
+int prom_getint(phandle node, char *property);
 
 /* Acquire an integer property, with a default value. */
-extern int prom_getintdefault(phandle node, char *property, int defval);
+int prom_getintdefault(phandle node, char *property, int defval);
 
 /* Acquire a boolean property, 0=FALSE 1=TRUE. */
-extern int prom_getbool(phandle node, char *prop);
+int prom_getbool(phandle node, char *prop);
 
 /* Acquire a string property, null string on error. */
-extern void prom_getstring(phandle node, char *prop, char *buf, int bufsize);
+void prom_getstring(phandle node, char *prop, char *buf, int bufsize);
 
 /* Search all siblings starting at the passed node for "name" matching
  * the given string.  Returns the node on success, zero on failure.
  */
-extern phandle prom_searchsiblings(phandle node_start, char *name);
+phandle prom_searchsiblings(phandle node_start, char *name);
 
 /* Returns the next property after the passed property for the given
  * node.  Returns null string on failure.
  */
-extern char *prom_nextprop(phandle node, char *prev_property, char *buffer);
+char *prom_nextprop(phandle node, char *prev_property, char *buffer);
 
 /* Returns phandle of the path specified */
-extern phandle prom_finddevice(char *name);
+phandle prom_finddevice(char *name);
 
 /* Set the indicated property at the given node with the passed value.
  * Returns the number of bytes of your value that the prom took.
  */
-extern int prom_setprop(phandle node, const char *prop_name, char *prop_value,
-                        int value_size);
+int prom_setprop(phandle node, const char *prop_name, char *prop_value,
+                 int value_size);
 
-extern phandle prom_inst2pkg(int);
+phandle prom_inst2pkg(int);
 
 /* Dorking with Bus ranges... */
 
 /* Apply promlib probes OBIO ranges to registers. */
-extern void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs);
+void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs);
 
 /* Apply ranges of any prom node (and optionally parent node as well) to registers. */
-extern void prom_apply_generic_ranges(phandle node, phandle parent,
-                                      struct linux_prom_registers *sbusregs, int nregs);
+void prom_apply_generic_ranges(phandle node, phandle parent,
+                               struct linux_prom_registers *sbusregs, int nregs);
 
 void prom_ranges_init(void);
 
diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h
index a12dbe3b7762..f34682430fcf 100644
--- a/arch/sparc/include/asm/oplib_64.h
+++ b/arch/sparc/include/asm/oplib_64.h
@@ -62,100 +62,100 @@ struct linux_mem_p1275 {
 /* You must call prom_init() before using any of the library services,
  * preferably as early as possible.  Pass it the romvec pointer.
  */
-extern void prom_init(void *cif_handler, void *cif_stack);
+void prom_init(void *cif_handler, void *cif_stack);
 
 /* Boot argument acquisition, returns the boot command line string. */
-extern char *prom_getbootargs(void);
+char *prom_getbootargs(void);
 
 /* Miscellaneous routines, don't really fit in any category per se. */
 
 /* Reboot the machine with the command line passed. */
-extern void prom_reboot(const char *boot_command);
+void prom_reboot(const char *boot_command);
 
 /* Evaluate the forth string passed. */
-extern void prom_feval(const char *forth_string);
+void prom_feval(const char *forth_string);
 
 /* Enter the prom, with possibility of continuation with the 'go'
  * command in newer proms.
  */
-extern void prom_cmdline(void);
+void prom_cmdline(void);
 
 /* Enter the prom, with no chance of continuation for the stand-alone
  * which calls this.
  */
-extern void prom_halt(void) __attribute__ ((noreturn));
+void prom_halt(void) __attribute__ ((noreturn));
 
 /* Halt and power-off the machine. */
-extern void prom_halt_power_off(void) __attribute__ ((noreturn));
+void prom_halt_power_off(void) __attribute__ ((noreturn));
 
 /* Acquire the IDPROM of the root node in the prom device tree.  This
  * gets passed a buffer where you would like it stuffed.  The return value
  * is the format type of this idprom or 0xff on error.
  */
-extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
+unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
 
 /* Write a buffer of characters to the console. */
-extern void prom_console_write_buf(const char *buf, int len);
+void prom_console_write_buf(const char *buf, int len);
 
 /* Prom's internal routines, don't use in kernel/boot code. */
-extern __printf(1, 2) void prom_printf(const char *fmt, ...);
-extern void prom_write(const char *buf, unsigned int len);
+__printf(1, 2) void prom_printf(const char *fmt, ...);
+void prom_write(const char *buf, unsigned int len);
 
 /* Multiprocessor operations... */
 #ifdef CONFIG_SMP
 /* Start the CPU with the given device tree node at the passed program
  * counter with the given arg passed in via register %o0.
  */
-extern void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg);
+void prom_startcpu(int cpunode, unsigned long pc, unsigned long arg);
 
 /* Start the CPU with the given cpu ID at the passed program
  * counter with the given arg passed in via register %o0.
  */
-extern void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg);
+void prom_startcpu_cpuid(int cpuid, unsigned long pc, unsigned long arg);
 
 /* Stop the CPU with the given cpu ID.  */
-extern void prom_stopcpu_cpuid(int cpuid);
+void prom_stopcpu_cpuid(int cpuid);
 
 /* Stop the current CPU. */
-extern void prom_stopself(void);
+void prom_stopself(void);
 
 /* Idle the current CPU. */
-extern void prom_idleself(void);
+void prom_idleself(void);
 
 /* Resume the CPU with the passed device tree node. */
-extern void prom_resumecpu(int cpunode);
+void prom_resumecpu(int cpunode);
 #endif
 
 /* Power management interfaces. */
 
 /* Put the current CPU to sleep. */
-extern void prom_sleepself(void);
+void prom_sleepself(void);
 
 /* Put the entire system to sleep. */
-extern int prom_sleepsystem(void);
+int prom_sleepsystem(void);
 
 /* Initiate a wakeup event. */
-extern int prom_wakeupsystem(void);
+int prom_wakeupsystem(void);
 
 /* MMU and memory related OBP interfaces. */
 
 /* Get unique string identifying SIMM at given physical address. */
-extern int prom_getunumber(int syndrome_code,
-                           unsigned long phys_addr,
-                           char *buf, int buflen);
+int prom_getunumber(int syndrome_code,
+                    unsigned long phys_addr,
+                    char *buf, int buflen);
 
 /* Retain physical memory to the caller across soft resets. */
-extern int prom_retain(const char *name, unsigned long size,
-                       unsigned long align, unsigned long *paddr);
+int prom_retain(const char *name, unsigned long size,
+                unsigned long align, unsigned long *paddr);
 
 /* Load explicit I/D TLB entries into the calling processor. */
-extern long prom_itlb_load(unsigned long index,
-                           unsigned long tte_data,
-                           unsigned long vaddr);
+long prom_itlb_load(unsigned long index,
+                    unsigned long tte_data,
+                    unsigned long vaddr);
 
-extern long prom_dtlb_load(unsigned long index,
-                           unsigned long tte_data,
-                           unsigned long vaddr);
+long prom_dtlb_load(unsigned long index,
+                    unsigned long tte_data,
+                    unsigned long vaddr);
 
 /* Map/Unmap client program address ranges.  First the format of
  * the mapping mode argument.
@@ -170,81 +170,81 @@ extern long prom_dtlb_load(unsigned long index,
 #define PROM_MAP_IE     0x0100 /* Invert-Endianness */
 #define PROM_MAP_DEFAULT (PROM_MAP_WRITE | PROM_MAP_READ | PROM_MAP_EXEC | PROM_MAP_CACHED)
 
-extern int prom_map(int mode, unsigned long size,
-                    unsigned long vaddr, unsigned long paddr);
-extern void prom_unmap(unsigned long size, unsigned long vaddr);
+int prom_map(int mode, unsigned long size,
+             unsigned long vaddr, unsigned long paddr);
+void prom_unmap(unsigned long size, unsigned long vaddr);
 
 
 /* PROM device tree traversal functions... */
 
 /* Get the child node of the given node, or zero if no child exists. */
-extern phandle prom_getchild(phandle parent_node);
+phandle prom_getchild(phandle parent_node);
 
 /* Get the next sibling node of the given node, or zero if no further
  * siblings exist.
  */
-extern phandle prom_getsibling(phandle node);
+phandle prom_getsibling(phandle node);
 
 /* Get the length, at the passed node, of the given property type.
  * Returns -1 on error (ie. no such property at this node).
  */
-extern int prom_getproplen(phandle thisnode, const char *property);
+int prom_getproplen(phandle thisnode, const char *property);
 
 /* Fetch the requested property using the given buffer.  Returns
  * the number of bytes the prom put into your buffer or -1 on error.
  */
-extern int prom_getproperty(phandle thisnode, const char *property,
-                            char *prop_buffer, int propbuf_size);
+int prom_getproperty(phandle thisnode, const char *property,
+                     char *prop_buffer, int propbuf_size);
 
 /* Acquire an integer property. */
-extern int prom_getint(phandle node, const char *property);
+int prom_getint(phandle node, const char *property);
 
 /* Acquire an integer property, with a default value. */
-extern int prom_getintdefault(phandle node, const char *property, int defval);
+int prom_getintdefault(phandle node, const char *property, int defval);
 
 /* Acquire a boolean property, 0=FALSE 1=TRUE. */
-extern int prom_getbool(phandle node, const char *prop);
+int prom_getbool(phandle node, const char *prop);
 
 /* Acquire a string property, null string on error. */
-extern void prom_getstring(phandle node, const char *prop, char *buf,
-                           int bufsize);
+void prom_getstring(phandle node, const char *prop, char *buf,
+                    int bufsize);
 
 /* Does the passed node have the given "name"? YES=1 NO=0 */
-extern int prom_nodematch(phandle thisnode, const char *name);
+int prom_nodematch(phandle thisnode, const char *name);
 
 /* Search all siblings starting at the passed node for "name" matching
  * the given string.  Returns the node on success, zero on failure.
  */
-extern phandle prom_searchsiblings(phandle node_start, const char *name);
+phandle prom_searchsiblings(phandle node_start, const char *name);
 
 /* Return the first property type, as a string, for the given node.
  * Returns a null string on error. Buffer should be at least 32B long.
  */
-extern char *prom_firstprop(phandle node, char *buffer);
+char *prom_firstprop(phandle node, char *buffer);
 
 /* Returns the next property after the passed property for the given
  * node.  Returns null string on failure. Buffer should be at least 32B long.
  */
-extern char *prom_nextprop(phandle node, const char *prev_property, char *buf);
+char *prom_nextprop(phandle node, const char *prev_property, char *buf);
 
 /* Returns 1 if the specified node has given property. */
-extern int prom_node_has_property(phandle node, const char *property);
+int prom_node_has_property(phandle node, const char *property);
 
 /* Returns phandle of the path specified */
-extern phandle prom_finddevice(const char *name);
+phandle prom_finddevice(const char *name);
 
 /* Set the indicated property at the given node with the passed value.
  * Returns the number of bytes of your value that the prom took.
  */
-extern int prom_setprop(phandle node, const char *prop_name, char *prop_value,
-                        int value_size);
+int prom_setprop(phandle node, const char *prop_name, char *prop_value,
+                 int value_size);
 
-extern phandle prom_inst2pkg(int);
-extern void prom_sun4v_guest_soft_state(void);
+phandle prom_inst2pkg(int);
+void prom_sun4v_guest_soft_state(void);
 
-extern int prom_ihandle2path(int handle, char *buffer, int bufsize);
+int prom_ihandle2path(int handle, char *buffer, int bufsize);
 
 /* Client interface level routines. */
-extern void p1275_cmd_direct(unsigned long *);
+void p1275_cmd_direct(unsigned long *);
 
 #endif /* !(__SPARC64_OPLIB_H) */
diff --git a/arch/sparc/include/asm/page.h b/arch/sparc/include/asm/page.h
index f21de0349025..1be2fdec6268 100644
--- a/arch/sparc/include/asm/page.h
+++ b/arch/sparc/include/asm/page.h
@@ -1,5 +1,8 @@
 #ifndef ___ASM_SPARC_PAGE_H
 #define ___ASM_SPARC_PAGE_H
+
+#define page_to_phys(page)      (page_to_pfn(page) << PAGE_SHIFT)
+
 #if defined(__sparc__) && defined(__arch64__)
 #include <asm/page_64.h>
 #else
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index aac53fcea807..bf109984a032 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -31,17 +31,17 @@
 
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
 struct pt_regs;
-extern void hugetlb_setup(struct pt_regs *regs);
+void hugetlb_setup(struct pt_regs *regs);
 #endif
 
 #define WANT_PAGE_VIRTUAL
 
-extern void _clear_page(void *page);
+void _clear_page(void *page);
 #define clear_page(X)   _clear_page((void *)(X))
 struct page;
-extern void clear_user_page(void *addr, unsigned long vaddr, struct page *page);
+void clear_user_page(void *addr, unsigned long vaddr, struct page *page);
 #define copy_page(X,Y)  memcpy((void *)(X), (void *)(Y), PAGE_SIZE)
-extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *topage);
+void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *topage);
 
 /* Unlike sparc32, sparc64's parameter passing API is more
  * sane in that structures which as small enough are passed
diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h
index c6c7396e7627..bd00a6226169 100644
--- a/arch/sparc/include/asm/pci_64.h
+++ b/arch/sparc/include/asm/pci_64.h
@@ -52,7 +52,7 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 
 /* Return the index of the PCI controller for device PDEV. */
 
-extern int pci_domain_nr(struct pci_bus *bus);
+int pci_domain_nr(struct pci_bus *bus);
 static inline int pci_proc_domain(struct pci_bus *bus)
 {
         return 1;
@@ -64,9 +64,9 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 #define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
 #define get_pci_unmapped_area get_fb_unmapped_area
 
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
-                               enum pci_mmap_state mmap_state,
-                               int write_combine);
+int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+                        enum pci_mmap_state mmap_state,
+                        int write_combine);
 
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {
@@ -74,9 +74,9 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 }
 
 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
-extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
-                                 const struct resource *rsrc,
-                                 resource_size_t *start, resource_size_t *end);
+void pci_resource_to_user(const struct pci_dev *dev, int bar,
+                          const struct resource *rsrc,
+                          resource_size_t *start, resource_size_t *end);
 #endif /* __KERNEL__ */
 
 #endif /* __SPARC64_PCI_H */
diff --git a/arch/sparc/include/asm/pcic.h b/arch/sparc/include/asm/pcic.h
index 6676cbcc8b6a..f41706792592 100644
--- a/arch/sparc/include/asm/pcic.h
+++ b/arch/sparc/include/asm/pcic.h
@@ -30,10 +30,10 @@ struct linux_pcic {
 };
 
 #ifdef CONFIG_PCIC_PCI
-extern int pcic_present(void);
-extern int pcic_probe(void);
-extern void pci_time_init(void);
-extern void sun4m_pci_init_IRQ(void);
+int pcic_present(void);
+int pcic_probe(void);
+void pci_time_init(void);
+void sun4m_pci_init_IRQ(void);
 #else
 static inline int pcic_present(void) { return 0; }
 static inline int pcic_probe(void) { return 0; }
diff --git a/arch/sparc/include/asm/pcr.h b/arch/sparc/include/asm/pcr.h
index 942bb17f60cd..cdf800c3326c 100644
--- a/arch/sparc/include/asm/pcr.h
+++ b/arch/sparc/include/asm/pcr.h
@@ -12,8 +12,8 @@ struct pcr_ops {
 };
 extern const struct pcr_ops *pcr_ops;
 
-extern void deferred_pcr_work_irq(int irq, struct pt_regs *regs);
-extern void schedule_deferred_pcr_work(void);
+void deferred_pcr_work_irq(int irq, struct pt_regs *regs);
+void schedule_deferred_pcr_work(void);
 
 #define PCR_PIC_PRIV            0x00000001 /* PIC access is privileged */
 #define PCR_STRACE              0x00000002 /* Trace supervisor events  */
@@ -45,6 +45,6 @@ extern void schedule_deferred_pcr_work(void);
 #define PCR_N4_PICNHT           0x00020000 /* PIC non-hypervisor trap  */
 #define PCR_N4_NTC              0x00040000 /* Next-To-Commit wrap      */
 
-extern int pcr_arch_init(void);
+int pcr_arch_init(void);
 
 #endif /* __PCR_H */
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index 9b1c36de0f18..a3890da94428 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -14,6 +14,8 @@ struct page;
 void *srmmu_get_nocache(int size, int align);
 void srmmu_free_nocache(void *addr, int size);
 
+extern struct resource sparc_iomap;
+
 #define check_pgt_cache()       do { } while (0)
 
 pgd_t *get_pgd_fast(void);
diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
index bcfe063bce23..39a7ac49b00c 100644
--- a/arch/sparc/include/asm/pgalloc_64.h
+++ b/arch/sparc/include/asm/pgalloc_64.h
@@ -38,12 +38,12 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
         kmem_cache_free(pgtable_cache, pmd);
 }
 
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-                                   unsigned long address);
-extern pgtable_t pte_alloc_one(struct mm_struct *mm,
-                               unsigned long address);
-extern void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
-extern void pte_free(struct mm_struct *mm, pgtable_t ptepage);
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
+                            unsigned long address);
+pgtable_t pte_alloc_one(struct mm_struct *mm,
+                        unsigned long address);
+void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
+void pte_free(struct mm_struct *mm, pgtable_t ptepage);
 
 #define pmd_populate_kernel(MM, PMD, PTE)       pmd_set(MM, PMD, PTE)
 #define pmd_populate(MM, PMD, PTE)              pmd_set(MM, PMD, PTE)
@@ -51,12 +51,12 @@ extern void pte_free(struct mm_struct *mm, pgtable_t ptepage);
 
 #define check_pgt_cache()       do { } while (0)
 
-extern void pgtable_free(void *table, bool is_page);
+void pgtable_free(void *table, bool is_page);
 
 #ifdef CONFIG_SMP
 
 struct mmu_gather;
-extern void tlb_remove_table(struct mmu_gather *, void *);
+void tlb_remove_table(struct mmu_gather *, void *);
 
 static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
 {
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 502f632f6cc7..b9b91ae19fe1 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -25,8 +25,9 @@
 struct vm_area_struct;
 struct page;
 
-extern void load_mmu(void);
-extern unsigned long calc_highpages(void);
+void load_mmu(void);
+unsigned long calc_highpages(void);
+unsigned long __init bootmem_init(unsigned long *pages_avail);
 
 #define pte_ERROR(e)   __builtin_trap()
 #define pmd_ERROR(e)   __builtin_trap()
@@ -56,7 +57,7 @@ extern unsigned long calc_highpages(void);
  * srmmu.c will assign the real one (which is dynamically sized) */
 #define swapper_pg_dir NULL
 
-extern void paging_init(void);
+void paging_init(void);
 
 extern unsigned long ptr_in_current_pgd;
 
@@ -428,8 +429,8 @@ extern unsigned long *sparc_valid_addr_bitmap;
 #define GET_IOSPACE(pfn)                (pfn >> (BITS_PER_LONG - 4))
 #define GET_PFN(pfn)                    (pfn & 0x0fffffffUL)
 
-extern int remap_pfn_range(struct vm_area_struct *, unsigned long, unsigned long,
-                           unsigned long, pgprot_t);
+int remap_pfn_range(struct vm_area_struct *, unsigned long, unsigned long,
+                    unsigned long, pgprot_t);
 
 static inline int io_remap_pfn_range(struct vm_area_struct *vma,
                                      unsigned long from, unsigned long pfn,
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 1a49ffdf9da9..3770bf5c6e1b 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -210,9 +210,9 @@ static inline bool kern_addr_valid(unsigned long addr)
 
 #ifndef __ASSEMBLY__
 
-extern pte_t mk_pte_io(unsigned long, pgprot_t, int, unsigned long);
+pte_t mk_pte_io(unsigned long, pgprot_t, int, unsigned long);
 
-extern unsigned long pte_sz_bits(unsigned long size);
+unsigned long pte_sz_bits(unsigned long size);
 
 extern pgprot_t PAGE_KERNEL;
 extern pgprot_t PAGE_KERNEL_LOCKED;
@@ -780,8 +780,8 @@ static inline int pmd_present(pmd_t pmd)
                                          !__kern_addr_valid(pud_val(pud)))
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-extern void set_pmd_at(struct mm_struct *mm, unsigned long addr,
-                       pmd_t *pmdp, pmd_t pmd);
+void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+                pmd_t *pmdp, pmd_t pmd);
 #else
 static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
                               pmd_t *pmdp, pmd_t pmd)
@@ -840,8 +840,8 @@ static inline unsigned long __pmd_page(pmd_t pmd)
 #define pte_unmap(pte)                  do { } while (0)
 
 /* Actual page table PTE updates.  */
-extern void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr,
-                          pte_t *ptep, pte_t orig, int fullmm);
+void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr,
+                   pte_t *ptep, pte_t orig, int fullmm);
 
 #define __HAVE_ARCH_PMDP_GET_AND_CLEAR
 static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
@@ -900,28 +900,28 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr,
 extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 extern pmd_t swapper_low_pmd_dir[PTRS_PER_PMD];
 
-extern void paging_init(void);
-extern unsigned long find_ecache_flush_span(unsigned long size);
+void paging_init(void);
+unsigned long find_ecache_flush_span(unsigned long size);
 
 struct seq_file;
-extern void mmu_info(struct seq_file *);
+void mmu_info(struct seq_file *);
 
 struct vm_area_struct;
-extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t *);
+void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t *);
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-extern void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr,
-                                 pmd_t *pmd);
+void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr,
+                          pmd_t *pmd);
 
 #define __HAVE_ARCH_PMDP_INVALIDATE
 extern void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
                             pmd_t *pmdp);
 
 #define __HAVE_ARCH_PGTABLE_DEPOSIT
-extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
-                                       pgtable_t pgtable);
+void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
+                                pgtable_t pgtable);
 
 #define __HAVE_ARCH_PGTABLE_WITHDRAW
-extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
+pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
 #endif
 
 /* Encode and de-code a swap entry */
@@ -937,12 +937,12 @@ extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
 #define __swp_entry_to_pte(x)           ((pte_t) { (x).val })
 
 /* File offset in PTE support. */
-extern unsigned long pte_file(pte_t);
+unsigned long pte_file(pte_t);
 #define pte_to_pgoff(pte)       (pte_val(pte) >> PAGE_SHIFT)
-extern pte_t pgoff_to_pte(unsigned long);
+pte_t pgoff_to_pte(unsigned long);
 #define PTE_FILE_MAX_BITS       (64UL - PAGE_SHIFT - 1UL)
 
-extern int page_in_phys_avail(unsigned long paddr);
+int page_in_phys_avail(unsigned long paddr);
 
 /*
  * For sparc32&64, the pfn in io_remap_pfn_range() carries <iospace> in
@@ -952,8 +952,8 @@ extern int page_in_phys_avail(unsigned long paddr);
 #define GET_IOSPACE(pfn)                (pfn >> (BITS_PER_LONG - 4))
 #define GET_PFN(pfn)                    (pfn & 0x0fffffffffffffffUL)
 
-extern int remap_pfn_range(struct vm_area_struct *, unsigned long, unsigned long,
-                           unsigned long, pgprot_t);
+int remap_pfn_range(struct vm_area_struct *, unsigned long, unsigned long,
+                    unsigned long, pgprot_t);
 
 static inline int io_remap_pfn_range(struct vm_area_struct *vma,
                                      unsigned long from, unsigned long pfn,
@@ -981,20 +981,20 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
 /* We provide a special get_unmapped_area for framebuffer mmaps to try and use
  * the largest alignment possible such that larget PTEs can be used.
  */
-extern unsigned long get_fb_unmapped_area(struct file *filp, unsigned long,
-                                          unsigned long, unsigned long,
-                                          unsigned long);
+unsigned long get_fb_unmapped_area(struct file *filp, unsigned long,
+                                   unsigned long, unsigned long,
+                                   unsigned long);
 #define HAVE_ARCH_FB_UNMAPPED_AREA
 
-extern void pgtable_cache_init(void);
-extern void sun4v_register_fault_status(void);
-extern void sun4v_ktsb_register(void);
-extern void __init cheetah_ecache_flush_init(void);
-extern void sun4v_patch_tlb_handlers(void);
+void pgtable_cache_init(void);
+void sun4v_register_fault_status(void);
+void sun4v_ktsb_register(void);
+void __init cheetah_ecache_flush_init(void);
+void sun4v_patch_tlb_handlers(void);
 
 extern unsigned long cmdline_memory_size;
 
-extern asmlinkage void do_sparc64_fault(struct pt_regs *regs);
+asmlinkage void do_sparc64_fault(struct pt_regs *regs);
 
 #endif /* !(__ASSEMBLY__) */
 
diff --git a/arch/sparc/include/asm/processor_32.h b/arch/sparc/include/asm/processor_32.h
index 2c7baa4c4505..a564817bbc2e 100644
--- a/arch/sparc/include/asm/processor_32.h
+++ b/arch/sparc/include/asm/processor_32.h
@@ -74,7 +74,7 @@ struct thread_struct {
 }
 
 /* Return saved PC of a blocked thread. */
-extern unsigned long thread_saved_pc(struct task_struct *t);
+unsigned long thread_saved_pc(struct task_struct *t);
 
 /* Do necessary setup to start up a newly executed thread. */
 static inline void start_thread(struct pt_regs * regs, unsigned long pc,
@@ -107,7 +107,7 @@ static inline void start_thread(struct pt_regs * regs, unsigned long pc,
 /* Free all resources held by a thread. */
 #define release_thread(tsk)             do { } while(0)
 
-extern unsigned long get_wchan(struct task_struct *);
+unsigned long get_wchan(struct task_struct *);
 
 #define task_pt_regs(tsk) ((tsk)->thread.kregs)
 #define KSTK_EIP(tsk)  ((tsk)->thread.kregs->pc)
@@ -116,6 +116,7 @@ extern unsigned long get_wchan(struct task_struct *);
 #ifdef __KERNEL__
 
 extern struct task_struct *last_task_used_math;
+int do_mathemu(struct pt_regs *regs, struct task_struct *fpt);
 
 #define cpu_relax()     barrier()
 extern void (*sparc_idle)(void);
diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h
index 4c3f7f01c709..7028fe1a7c04 100644
--- a/arch/sparc/include/asm/processor_64.h
+++ b/arch/sparc/include/asm/processor_64.h
@@ -95,7 +95,7 @@ struct thread_struct {
 
 /* Return saved PC of a blocked thread. */
 struct task_struct;
-extern unsigned long thread_saved_pc(struct task_struct *);
+unsigned long thread_saved_pc(struct task_struct *);
 
 /* On Uniprocessor, even in RMO processes see TSO semantics */
 #ifdef CONFIG_SMP
@@ -194,7 +194,7 @@ do { \
 /* Free all resources held by a thread. */
 #define release_thread(tsk)             do { } while (0)
 
-extern unsigned long get_wchan(struct task_struct *task);
+unsigned long get_wchan(struct task_struct *task);
 
 #define task_pt_regs(tsk) (task_thread_info(tsk)->kregs)
 #define KSTK_EIP(tsk)  (task_pt_regs(tsk)->tpc)
@@ -253,6 +253,8 @@ static inline void prefetchw(const void *x)
 
 #define HAVE_ARCH_PICK_MMAP_LAYOUT
 
+int do_mathemu(struct pt_regs *regs, struct fpustate *f, bool illegal_insn_trap);
+
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(__ASM_SPARC64_PROCESSOR_H) */
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index 11ebd659e7b6..d955c8df62d6 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -36,28 +36,28 @@ struct of_irq_controller {
         void            *data;
 };
 
-extern struct device_node *of_find_node_by_cpuid(int cpuid);
-extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
+struct device_node *of_find_node_by_cpuid(int cpuid);
+int of_set_property(struct device_node *node, const char *name, void *val, int len);
 extern struct mutex of_set_property_mutex;
-extern int of_getintprop_default(struct device_node *np,
-                                 const char *name,
+int of_getintprop_default(struct device_node *np,
+                          const char *name,
                                  int def);
-extern int of_find_in_proplist(const char *list, const char *match, int len);
+int of_find_in_proplist(const char *list, const char *match, int len);
 
-extern void prom_build_devicetree(void);
-extern void of_populate_present_mask(void);
-extern void of_fill_in_cpu_data(void);
+void prom_build_devicetree(void);
+void of_populate_present_mask(void);
+void of_fill_in_cpu_data(void);
 
 struct resource;
-extern void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name);
-extern void of_iounmap(struct resource *res, void __iomem *base, unsigned long size);
+void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name);
+void of_iounmap(struct resource *res, void __iomem *base, unsigned long size);
 
 extern struct device_node *of_console_device;
 extern char *of_console_path;
 extern char *of_console_options;
 
-extern void irq_trans_init(struct device_node *dp);
-extern char *build_path_component(struct device_node *dp);
+void irq_trans_init(struct device_node *dp);
+char *build_path_component(struct device_node *dp);
 
 #endif /* __KERNEL__ */
 #endif /* _SPARC_PROM_H */
diff --git a/arch/sparc/include/asm/ptrace.h b/arch/sparc/include/asm/ptrace.h
index bdfafd7af46f..bac6a946ee00 100644
--- a/arch/sparc/include/asm/ptrace.h
+++ b/arch/sparc/include/asm/ptrace.h
@@ -73,7 +73,7 @@ static inline long regs_return_value(struct pt_regs *regs)
         return regs->u_regs[UREG_I0];
 }
 #ifdef CONFIG_SMP
-extern unsigned long profile_pc(struct pt_regs *);
+unsigned long profile_pc(struct pt_regs *);
 #else
 #define profile_pc(regs) instruction_pointer(regs)
 #endif
diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h
index 5e35e0517318..f5fffd84d0dd 100644
--- a/arch/sparc/include/asm/setup.h
+++ b/arch/sparc/include/asm/setup.h
@@ -4,8 +4,9 @@
 #ifndef _SPARC_SETUP_H
 #define _SPARC_SETUP_H
 
-#include <uapi/asm/setup.h>
+#include <linux/interrupt.h>
 
+#include <uapi/asm/setup.h>
 
 extern char reboot_command[];
 
@@ -22,9 +23,43 @@ static inline int con_is_present(void)
 {
         return serial_console ? 0 : 1;
 }
+
+/* from irq_32.c */
+extern volatile unsigned char *fdc_status;
+extern char *pdma_vaddr;
+extern unsigned long pdma_size;
+extern volatile int doing_pdma;
+
+/* This is software state */
+extern char *pdma_base;
+extern unsigned long pdma_areasize;
+
+int sparc_floppy_request_irq(unsigned int irq, irq_handler_t irq_handler);
+
+/* setup_32.c */
+extern unsigned long cmdline_memory_size;
+
+/* devices.c */
+void __init device_scan(void);
+
+/* unaligned_32.c */
+unsigned long safe_compute_effective_address(struct pt_regs *, unsigned int);
+
+#endif
+
+#ifdef CONFIG_SPARC64
+/* unaligned_64.c */
+int handle_ldf_stq(u32 insn, struct pt_regs *regs);
+void handle_ld_nf(u32 insn, struct pt_regs *regs);
+
+/* init_64.c */
+extern atomic_t dcpage_flushes;
+extern atomic_t dcpage_flushes_xcall;
+
+extern int sysctl_tsb_ratio;
 #endif
 
-extern void sun_do_break(void);
+void sun_do_break(void);
 extern int stop_a_enabled;
 extern int scons_pwroff;
 
diff --git a/arch/sparc/include/asm/sfp-machine_32.h b/arch/sparc/include/asm/sfp-machine_32.h
index 01d9c3b5a73b..838c9d58f3b4 100644
--- a/arch/sparc/include/asm/sfp-machine_32.h
+++ b/arch/sparc/include/asm/sfp-machine_32.h
@@ -79,9 +79,9 @@
   __asm__ ("addcc %r7,%8,%2\n\t"                                        \
            "addxcc %r5,%6,%1\n\t"                                       \
            "addx %r3,%4,%0\n"                                           \
-           : "=r" ((USItype)(r2)),                                      \
-             "=&r" ((USItype)(r1)),                                     \
-             "=&r" ((USItype)(r0))                                      \
+           : "=r" (r2),                                                 \
+             "=&r" (r1),                                                \
+             "=&r" (r0)                                                 \
            : "%rJ" ((USItype)(x2)),                                     \
              "rI" ((USItype)(y2)),                                      \
              "%rJ" ((USItype)(x1)),                                     \
@@ -94,9 +94,9 @@
   __asm__ ("subcc %r7,%8,%2\n\t"                                        \
             "subxcc %r5,%6,%1\n\t"                                      \
             "subx %r3,%4,%0\n"                                          \
-           : "=r" ((USItype)(r2)),                                      \
-             "=&r" ((USItype)(r1)),                                     \
-             "=&r" ((USItype)(r0))                                      \
+           : "=r" (r2),                                                 \
+             "=&r" (r1),                                                \
+             "=&r" (r0)                                                 \
            : "%rJ" ((USItype)(x2)),                                     \
              "rI" ((USItype)(y2)),                                      \
              "%rJ" ((USItype)(x1)),                                     \
@@ -115,8 +115,8 @@
             "addxcc %r6,%7,%0\n\t"                                      \
             "addxcc %r4,%5,%%g2\n\t"                                    \
             "addx %r2,%3,%%g1\n\t"                                      \
-           : "=&r" ((USItype)(r1)),                                     \
-             "=&r" ((USItype)(r0))                                      \
+           : "=&r" (r1),                                                \
+             "=&r" (r0)                                                 \
            : "%rJ" ((USItype)(x3)),                                     \
              "rI" ((USItype)(y3)),                                      \
              "%rJ" ((USItype)(x2)),                                     \
@@ -140,8 +140,8 @@
             "subxcc %r6,%7,%0\n\t"                                      \
             "subxcc %r4,%5,%%g2\n\t"                                    \
             "subx %r2,%3,%%g1\n\t"                                      \
-           : "=&r" ((USItype)(r1)),                                     \
-             "=&r" ((USItype)(r0))                                      \
+           : "=&r" (r1),                                                \
+             "=&r" (r0)                                                 \
            : "%rJ" ((USItype)(x3)),                                     \
              "rI" ((USItype)(y3)),                                      \
              "%rJ" ((USItype)(x2)),                                     \
@@ -164,10 +164,10 @@
            "addxcc %2,%%g0,%2\n\t"                                      \
            "addxcc %1,%%g0,%1\n\t"                                      \
            "addx %0,%%g0,%0\n\t"                                        \
-           : "=&r" ((USItype)(x3)),                                     \
-             "=&r" ((USItype)(x2)),                                     \
-             "=&r" ((USItype)(x1)),                                     \
-             "=&r" ((USItype)(x0))                                      \
+           : "=&r" (x3),                                                \
+             "=&r" (x2),                                                \
+             "=&r" (x1),                                                \
+             "=&r" (x0)                                                 \
            : "rI" ((USItype)(i)),                                       \
              "0" ((USItype)(x3)),                                       \
              "1" ((USItype)(x2)),                                       \
diff --git a/arch/sparc/include/asm/smp_32.h b/arch/sparc/include/asm/smp_32.h
index 3c8917f054de..7c24e08a88d2 100644
--- a/arch/sparc/include/asm/smp_32.h
+++ b/arch/sparc/include/asm/smp_32.h
@@ -93,15 +93,15 @@ static inline void xc4(smpfunc_t func, unsigned long arg1, unsigned long arg2,
                                     arg1, arg2, arg3, arg4);
 }
 
-extern void arch_send_call_function_single_ipi(int cpu);
-extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+void arch_send_call_function_single_ipi(int cpu);
+void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
 static inline int cpu_logical_map(int cpu)
 {
         return cpu;
 }
 
-extern int hard_smp_processor_id(void);
+int hard_smp_processor_id(void);
 
 #define raw_smp_processor_id()          (current_thread_info()->cpu)
 
diff --git a/arch/sparc/include/asm/smp_64.h b/arch/sparc/include/asm/smp_64.h
index 05710393959f..26d9e7726867 100644
--- a/arch/sparc/include/asm/smp_64.h
+++ b/arch/sparc/include/asm/smp_64.h
@@ -33,29 +33,35 @@
 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
 extern cpumask_t cpu_core_map[NR_CPUS];
 
-extern void arch_send_call_function_single_ipi(int cpu);
-extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+void arch_send_call_function_single_ipi(int cpu);
+void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
 /*
  *      General functions that each host system must provide.
  */
 
-extern int hard_smp_processor_id(void);
+int hard_smp_processor_id(void);
 #define raw_smp_processor_id() (current_thread_info()->cpu)
 
-extern void smp_fill_in_sib_core_maps(void);
-extern void cpu_play_dead(void);
+void smp_fill_in_sib_core_maps(void);
+void cpu_play_dead(void);
 
-extern void smp_fetch_global_regs(void);
-extern void smp_fetch_global_pmu(void);
+void smp_fetch_global_regs(void);
+void smp_fetch_global_pmu(void);
 
 struct seq_file;
 void smp_bogo(struct seq_file *);
 void smp_info(struct seq_file *);
 
+void smp_callin(void);
+void cpu_panic(void);
+void smp_synchronize_tick_client(void);
+void smp_capture(void);
+void smp_release(void);
+
 #ifdef CONFIG_HOTPLUG_CPU
-extern int __cpu_disable(void);
-extern void __cpu_die(unsigned int cpu);
+int __cpu_disable(void);
+void __cpu_die(unsigned int cpu);
 #endif
 
 #endif /* !(__ASSEMBLY__) */
diff --git a/arch/sparc/include/asm/spitfire.h b/arch/sparc/include/asm/spitfire.h
index 6b67e50fb9b4..3fc58691dbd0 100644
--- a/arch/sparc/include/asm/spitfire.h
+++ b/arch/sparc/include/asm/spitfire.h
@@ -62,7 +62,7 @@ extern enum ultra_tlb_layout tlb_type;
 extern int sun4v_chip_type;
 
 extern int cheetah_pcache_forced_on;
-extern void cheetah_enable_pcache(void);
+void cheetah_enable_pcache(void);
 
 #define sparc64_highest_locked_tlbent() \
         (tlb_type == spitfire ? \
diff --git a/arch/sparc/include/asm/stacktrace.h b/arch/sparc/include/asm/stacktrace.h
index 6cee39adf6d6..c30d066f3048 100644
--- a/arch/sparc/include/asm/stacktrace.h
+++ b/arch/sparc/include/asm/stacktrace.h
@@ -1,6 +1,6 @@
 #ifndef _SPARC64_STACKTRACE_H
 #define _SPARC64_STACKTRACE_H
 
-extern void stack_trace_flush(void);
+void stack_trace_flush(void);
 
 #endif /* _SPARC64_STACKTRACE_H */
diff --git a/arch/sparc/include/asm/starfire.h b/arch/sparc/include/asm/starfire.h
index d56ce60a5992..c100dc27a0a9 100644
--- a/arch/sparc/include/asm/starfire.h
+++ b/arch/sparc/include/asm/starfire.h
@@ -11,10 +11,10 @@
 
 extern int this_is_starfire;
 
-extern void check_if_starfire(void);
-extern int starfire_hard_smp_processor_id(void);
-extern void starfire_hookup(int);
-extern unsigned int starfire_translate(unsigned long imap, unsigned int upaid);
+void check_if_starfire(void);
+int starfire_hard_smp_processor_id(void);
+void starfire_hookup(int);
+unsigned int starfire_translate(unsigned long imap, unsigned int upaid);
 
 #endif
 #endif
diff --git a/arch/sparc/include/asm/string_32.h b/arch/sparc/include/asm/string_32.h
index 12f67857152e..69974e924611 100644
--- a/arch/sparc/include/asm/string_32.h
+++ b/arch/sparc/include/asm/string_32.h
@@ -15,7 +15,7 @@
 
 #ifdef __KERNEL__
 
-extern void __memmove(void *,const void *,__kernel_size_t);
+void __memmove(void *,const void *,__kernel_size_t);
 
 #ifndef EXPORT_SYMTAB_STROPS
 
@@ -40,8 +40,8 @@ extern void __memmove(void *,const void *,__kernel_size_t);
 #undef memscan
 #define memscan(__arg0, __char, __arg2)                                         \
 ({                                                                              \
-        extern void *__memscan_zero(void *, size_t);                            \
-        extern void *__memscan_generic(void *, int, size_t);                    \
+        void *__memscan_zero(void *, size_t);                                   \
+        void *__memscan_generic(void *, int, size_t);                           \
         void *__retval, *__addr = (__arg0);                                     \
         size_t __size = (__arg2);                                               \
                                                                                 \
@@ -54,14 +54,14 @@ extern void __memmove(void *,const void *,__kernel_size_t);
 })
 
 #define __HAVE_ARCH_MEMCMP
-extern int memcmp(const void *,const void *,__kernel_size_t);
+int memcmp(const void *,const void *,__kernel_size_t);
 
 /* Now the str*() stuff... */
 #define __HAVE_ARCH_STRLEN
-extern __kernel_size_t strlen(const char *);
+__kernel_size_t strlen(const char *);
 
 #define __HAVE_ARCH_STRNCMP
-extern int strncmp(const char *, const char *, __kernel_size_t);
+int strncmp(const char *, const char *, __kernel_size_t);
 
 #endif /* !EXPORT_SYMTAB_STROPS */
 
diff --git a/arch/sparc/include/asm/string_64.h b/arch/sparc/include/asm/string_64.h
index 9623bc213158..5936b8ff3c05 100644
--- a/arch/sparc/include/asm/string_64.h
+++ b/arch/sparc/include/asm/string_64.h
@@ -19,7 +19,7 @@
 
 /* First the mem*() things. */
 #define __HAVE_ARCH_MEMMOVE
-extern void *memmove(void *, const void *, __kernel_size_t);
+void *memmove(void *, const void *, __kernel_size_t);
 
 #define __HAVE_ARCH_MEMCPY
 #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
@@ -32,8 +32,8 @@ extern void *memmove(void *, const void *, __kernel_size_t);
 #undef memscan
 #define memscan(__arg0, __char, __arg2)                                 \
 ({                                                                      \
-        extern void *__memscan_zero(void *, size_t);                    \
-        extern void *__memscan_generic(void *, int, size_t);            \
+        void *__memscan_zero(void *, size_t);                           \
+        void *__memscan_generic(void *, int, size_t);                   \
         void *__retval, *__addr = (__arg0);                             \
         size_t __size = (__arg2);                                       \
                                                                         \
@@ -46,14 +46,14 @@ extern void *memmove(void *, const void *, __kernel_size_t);
 })
 
 #define __HAVE_ARCH_MEMCMP
-extern int memcmp(const void *,const void *,__kernel_size_t);
+int memcmp(const void *,const void *,__kernel_size_t);
 
 /* Now the str*() stuff... */
 #define __HAVE_ARCH_STRLEN
-extern __kernel_size_t strlen(const char *);
+__kernel_size_t strlen(const char *);
 
 #define __HAVE_ARCH_STRNCMP
-extern int strncmp(const char *, const char *, __kernel_size_t);
+int strncmp(const char *, const char *, __kernel_size_t);
 
 #endif /* !EXPORT_SYMTAB_STROPS */
 
diff --git a/arch/sparc/include/asm/switch_to_32.h b/arch/sparc/include/asm/switch_to_32.h
index e32e82b76eed..16f10374feb3 100644
--- a/arch/sparc/include/asm/switch_to_32.h
+++ b/arch/sparc/include/asm/switch_to_32.h
@@ -99,8 +99,8 @@ extern struct thread_info *current_set[NR_CPUS];
           "o0", "o1", "o2", "o3",                   "o7");      \
         } while(0)
 
-extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
-                   void *fpqueue, unsigned long *fpqdepth);
-extern void synchronize_user_stack(void);
+void fpsave(unsigned long *fpregs, unsigned long *fsr,
+            void *fpqueue, unsigned long *fpqdepth);
+void synchronize_user_stack(void);
 
 #endif /* __SPARC_SWITCH_TO_H */
diff --git a/arch/sparc/include/asm/switch_to_64.h b/arch/sparc/include/asm/switch_to_64.h
index 8d284801f232..10e76332dc99 100644
--- a/arch/sparc/include/asm/switch_to_64.h
+++ b/arch/sparc/include/asm/switch_to_64.h
@@ -65,7 +65,7 @@ do {	save_and_clear_fpu();						\
           "o0", "o1", "o2", "o3", "o4", "o5",       "o7");              \
 } while(0)
 
-extern void synchronize_user_stack(void);
-extern void fault_in_user_windows(void);
+void synchronize_user_stack(void);
+void fault_in_user_windows(void);
 
 #endif /* __SPARC64_SWITCH_TO_64_H */
diff --git a/arch/sparc/include/asm/syscalls.h b/arch/sparc/include/asm/syscalls.h
index bf8972adea17..b0a0db8ea61a 100644
--- a/arch/sparc/include/asm/syscalls.h
+++ b/arch/sparc/include/asm/syscalls.h
@@ -3,9 +3,9 @@
 
 struct pt_regs;
 
-extern asmlinkage long sparc_do_fork(unsigned long clone_flags,
-                                     unsigned long stack_start,
-                                     struct pt_regs *regs,
-                                     unsigned long stack_size);
+asmlinkage long sparc_do_fork(unsigned long clone_flags,
+                              unsigned long stack_start,
+                              struct pt_regs *regs,
+                              unsigned long stack_size);
 
 #endif /* _SPARC64_SYSCALLS_H */
diff --git a/arch/sparc/include/asm/timer_32.h b/arch/sparc/include/asm/timer_32.h
index 72f40a546de3..f8e708a0aa58 100644
--- a/arch/sparc/include/asm/timer_32.h
+++ b/arch/sparc/include/asm/timer_32.h
@@ -32,13 +32,13 @@ static inline unsigned int timer_value(unsigned int value)
         return (value + 1) << TIMER_VALUE_SHIFT;
 }
 
-extern __volatile__ unsigned int *master_l10_counter;
+extern volatile u32 __iomem *master_l10_counter;
 
-extern irqreturn_t notrace timer_interrupt(int dummy, void *dev_id);
+irqreturn_t notrace timer_interrupt(int dummy, void *dev_id);
 
 #ifdef CONFIG_SMP
 DECLARE_PER_CPU(struct clock_event_device, sparc32_clockevent);
-extern void register_percpu_ce(int cpu);
+void register_percpu_ce(int cpu);
 #endif
 
 #endif /* !(_SPARC_TIMER_H) */
diff --git a/arch/sparc/include/asm/timer_64.h b/arch/sparc/include/asm/timer_64.h
index 01197d8215c4..fce415034000 100644
--- a/arch/sparc/include/asm/timer_64.h
+++ b/arch/sparc/include/asm/timer_64.h
@@ -23,8 +23,8 @@ struct sparc64_tick_ops {
 
 extern struct sparc64_tick_ops *tick_ops;
 
-extern unsigned long sparc64_get_clock_tick(unsigned int cpu);
-extern void setup_sparc64_timer(void);
-extern void __init time_init(void);
+unsigned long sparc64_get_clock_tick(unsigned int cpu);
+void setup_sparc64_timer(void);
+void __init time_init(void);
 
 #endif /* _SPARC64_TIMER_H */
diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h
index 190e18913cc6..4cb392f75d2b 100644
--- a/arch/sparc/include/asm/tlb_64.h
+++ b/arch/sparc/include/asm/tlb_64.h
@@ -8,19 +8,19 @@
 #include <asm/mmu_context.h>
 
 #ifdef CONFIG_SMP
-extern void smp_flush_tlb_pending(struct mm_struct *,
+void smp_flush_tlb_pending(struct mm_struct *,
                                   unsigned long, unsigned long *);
 #endif
 
 #ifdef CONFIG_SMP
-extern void smp_flush_tlb_mm(struct mm_struct *mm);
+void smp_flush_tlb_mm(struct mm_struct *mm);
 #define do_flush_tlb_mm(mm) smp_flush_tlb_mm(mm)
 #else
 #define do_flush_tlb_mm(mm) __flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT)
 #endif
 
-extern void __flush_tlb_pending(unsigned long, unsigned long, unsigned long *);
-extern void flush_tlb_pending(void);
+void __flush_tlb_pending(unsigned long, unsigned long, unsigned long *);
+void flush_tlb_pending(void);
 
 #define tlb_start_vma(tlb, vma) do { } while (0)
 #define tlb_end_vma(tlb, vma)   do { } while (0)
diff --git a/arch/sparc/include/asm/tlbflush_64.h b/arch/sparc/include/asm/tlbflush_64.h
index 3c3c89f52643..816d8202fa0a 100644
--- a/arch/sparc/include/asm/tlbflush_64.h
+++ b/arch/sparc/include/asm/tlbflush_64.h
@@ -14,9 +14,9 @@ struct tlb_batch {
         unsigned long vaddrs[TLB_BATCH_NR];
 };
 
-extern void flush_tsb_kernel_range(unsigned long start, unsigned long end);
-extern void flush_tsb_user(struct tlb_batch *tb);
-extern void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr);
+void flush_tsb_kernel_range(unsigned long start, unsigned long end);
+void flush_tsb_user(struct tlb_batch *tb);
+void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr);
 
 /* TLB flush operations. */
 
@@ -36,15 +36,15 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
 
 #define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
 
-extern void flush_tlb_pending(void);
-extern void arch_enter_lazy_mmu_mode(void);
-extern void arch_leave_lazy_mmu_mode(void);
+void flush_tlb_pending(void);
+void arch_enter_lazy_mmu_mode(void);
+void arch_leave_lazy_mmu_mode(void);
 #define arch_flush_lazy_mmu_mode()      do {} while (0)
 
 /* Local cpu only.  */
-extern void __flush_tlb_all(void);
-extern void __flush_tlb_page(unsigned long context, unsigned long vaddr);
-extern void __flush_tlb_kernel_range(unsigned long start, unsigned long end);
+void __flush_tlb_all(void);
+void __flush_tlb_page(unsigned long context, unsigned long vaddr);
+void __flush_tlb_kernel_range(unsigned long start, unsigned long end);
 
 #ifndef CONFIG_SMP
 
@@ -60,8 +60,8 @@ static inline void global_flush_tlb_page(struct mm_struct *mm, unsigned long vad
 
 #else /* CONFIG_SMP */
 
-extern void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end);
-extern void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr);
+void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end);
+void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr);
 
 #define flush_tlb_kernel_range(start, end) \
 do {    flush_tsb_kernel_range(start,end); \
diff --git a/arch/sparc/include/asm/topology_64.h b/arch/sparc/include/asm/topology_64.h
index a2d10fc64faf..ed8f071132e4 100644
--- a/arch/sparc/include/asm/topology_64.h
+++ b/arch/sparc/include/asm/topology_64.h
@@ -18,7 +18,7 @@ static inline int cpu_to_node(int cpu)
 
 struct pci_bus;
 #ifdef CONFIG_PCI
-extern int pcibus_to_node(struct pci_bus *pbus);
+int pcibus_to_node(struct pci_bus *pbus);
 #else
 static inline int pcibus_to_node(struct pci_bus *pbus)
 {
diff --git a/arch/sparc/include/asm/trap_block.h b/arch/sparc/include/asm/trap_block.h
index 7e26b2db6211..6fd4436d32f0 100644
--- a/arch/sparc/include/asm/trap_block.h
+++ b/arch/sparc/include/asm/trap_block.h
@@ -51,11 +51,11 @@ struct trap_per_cpu {
         unsigned long           __per_cpu_base;
 } __attribute__((aligned(64)));
 extern struct trap_per_cpu trap_block[NR_CPUS];
-extern void init_cur_cpu_trap(struct thread_info *);
-extern void setup_tba(void);
+void init_cur_cpu_trap(struct thread_info *);
+void setup_tba(void);
 extern int ncpus_probed;
 
-extern unsigned long real_hard_smp_processor_id(void);
+unsigned long real_hard_smp_processor_id(void);
 
 struct cpuid_patch_entry {
         unsigned int    addr;
diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
index 0167d26d0d1d..bd56c28fff9f 100644
--- a/arch/sparc/include/asm/uaccess.h
+++ b/arch/sparc/include/asm/uaccess.h
@@ -9,6 +9,6 @@
 #define user_addr_max() \
         (segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL)
 
-extern long strncpy_from_user(char *dest, const char __user *src, long count);
+long strncpy_from_user(char *dest, const char __user *src, long count);
 
 #endif
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
index 53a28dd59f59..9634d086fc56 100644
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h
@@ -78,9 +78,9 @@ struct exception_table_entry
 };
 
 /* Returns 0 if exception not found and fixup otherwise.  */
-extern unsigned long search_extables_range(unsigned long addr, unsigned long *g2);
+unsigned long search_extables_range(unsigned long addr, unsigned long *g2);
 
-extern void __ret_efault(void);
+void __ret_efault(void);
 
 /* Uh, these should become the main single-value transfer routines..
  * They automatically use the right size if we just have the right
@@ -152,7 +152,7 @@ __asm__ __volatile__(							\
        : "=&r" (ret) : "r" (x), "m" (*__m(addr)),                       \
          "i" (-EFAULT))
 
-extern int __put_user_bad(void);
+int __put_user_bad(void);
 
 #define __get_user_check(x,addr,size,type) ({ \
 register int __gu_ret; \
@@ -244,9 +244,9 @@ __asm__ __volatile__(							\
         ".previous\n\t"                                                 \
        : "=&r" (x) : "m" (*__m(addr)), "i" (retval))
 
-extern int __get_user_bad(void);
+int __get_user_bad(void);
 
-extern unsigned long __copy_user(void __user *to, const void __user *from, unsigned long size);
+unsigned long __copy_user(void __user *to, const void __user *from, unsigned long size);
 
 static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
 {
@@ -306,8 +306,8 @@ static inline unsigned long clear_user(void __user *addr, unsigned long n)
                 return n;
 }
 
-extern __must_check long strlen_user(const char __user *str);
-extern __must_check long strnlen_user(const char __user *str, long n);
+__must_check long strlen_user(const char __user *str);
+__must_check long strnlen_user(const char __user *str, long n);
 
 #endif  /* __ASSEMBLY__ */
 
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index ad7e178337f1..c990a5e577f0 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -76,8 +76,8 @@ struct exception_table_entry {
         unsigned int insn, fixup;
 };
 
-extern void __ret_efault(void);
-extern void __retl_efault(void);
+void __ret_efault(void);
+void __retl_efault(void);
 
 /* Uh, these should become the main single-value transfer routines..
  * They automatically use the right size if we just have the right
@@ -134,7 +134,7 @@ __asm__ __volatile__(							\
        : "=r" (ret) : "r" (x), "r" (__m(addr)),                         \
          "i" (-EFAULT))
 
-extern int __put_user_bad(void);
+int __put_user_bad(void);
 
 #define __get_user_nocheck(data,addr,size,type) ({ \
 register int __gu_ret; \
@@ -204,13 +204,13 @@ __asm__ __volatile__(							\
         ".previous\n\t"                                                 \
        : "=r" (x) : "r" (__m(addr)), "i" (retval))
 
-extern int __get_user_bad(void);
+int __get_user_bad(void);
 
-extern unsigned long __must_check ___copy_from_user(void *to,
-                                                    const void __user *from,
-                                                    unsigned long size);
-extern unsigned long copy_from_user_fixup(void *to, const void __user *from,
-                                          unsigned long size);
+unsigned long __must_check ___copy_from_user(void *to,
+                                             const void __user *from,
+                                             unsigned long size);
+unsigned long copy_from_user_fixup(void *to, const void __user *from,
+                                   unsigned long size);
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long size)
 {
@@ -223,11 +223,11 @@ copy_from_user(void *to, const void __user *from, unsigned long size)
 }
 #define __copy_from_user copy_from_user
 
-extern unsigned long __must_check ___copy_to_user(void __user *to,
-                                                  const void *from,
-                                                  unsigned long size);
-extern unsigned long copy_to_user_fixup(void __user *to, const void *from,
-                                        unsigned long size);
+unsigned long __must_check ___copy_to_user(void __user *to,
+                                           const void *from,
+                                           unsigned long size);
+unsigned long copy_to_user_fixup(void __user *to, const void *from,
+                                 unsigned long size);
 static inline unsigned long __must_check
 copy_to_user(void __user *to, const void *from, unsigned long size)
 {
@@ -239,11 +239,11 @@ copy_to_user(void __user *to, const void *from, unsigned long size)
 }
 #define __copy_to_user copy_to_user
 
-extern unsigned long __must_check ___copy_in_user(void __user *to,
-                                                  const void __user *from,
-                                                  unsigned long size);
-extern unsigned long copy_in_user_fixup(void __user *to, void __user *from,
-                                        unsigned long size);
+unsigned long __must_check ___copy_in_user(void __user *to,
+                                           const void __user *from,
+                                           unsigned long size);
+unsigned long copy_in_user_fixup(void __user *to, void __user *from,
+                                 unsigned long size);
 static inline unsigned long __must_check
 copy_in_user(void __user *to, void __user *from, unsigned long size)
 {
@@ -255,20 +255,20 @@ copy_in_user(void __user *to, void __user *from, unsigned long size)
 }
 #define __copy_in_user copy_in_user
 
-extern unsigned long __must_check __clear_user(void __user *, unsigned long);
+unsigned long __must_check __clear_user(void __user *, unsigned long);
 
 #define clear_user __clear_user
 
-extern __must_check long strlen_user(const char __user *str);
-extern __must_check long strnlen_user(const char __user *str, long n);
+__must_check long strlen_user(const char __user *str);
+__must_check long strnlen_user(const char __user *str, long n);
 
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
 
 struct pt_regs;
-extern unsigned long compute_effective_address(struct pt_regs *,
-                                               unsigned int insn,
-                                               unsigned int rd);
+unsigned long compute_effective_address(struct pt_regs *,
+                                        unsigned int insn,
+                                        unsigned int rd);
 
 #endif  /* __ASSEMBLY__ */
 
diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h
index 432afa838861..e0f6c399f1d0 100644
--- a/arch/sparc/include/asm/vio.h
+++ b/arch/sparc/include/asm/vio.h
@@ -372,14 +372,14 @@ do {	if (vio->debug & VIO_DEBUG_##TYPE) \
                        vio->vdev->channel_id, ## a); \
 } while (0)
 
-extern int __vio_register_driver(struct vio_driver *drv, struct module *owner,
+int __vio_register_driver(struct vio_driver *drv, struct module *owner,
                                  const char *mod_name);
 /*
  * vio_register_driver must be a macro so that KBUILD_MODNAME can be expanded
  */
 #define vio_register_driver(driver)             \
         __vio_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
-extern void vio_unregister_driver(struct vio_driver *drv);
+void vio_unregister_driver(struct vio_driver *drv);
 
 static inline struct vio_driver *to_vio_driver(struct device_driver *drv)
 {
@@ -391,21 +391,21 @@ static inline struct vio_dev *to_vio_dev(struct device *dev)
         return container_of(dev, struct vio_dev, dev);
 }
 
-extern int vio_ldc_send(struct vio_driver_state *vio, void *data, int len);
-extern void vio_link_state_change(struct vio_driver_state *vio, int event);
-extern void vio_conn_reset(struct vio_driver_state *vio);
-extern int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt);
-extern int vio_validate_sid(struct vio_driver_state *vio,
-                            struct vio_msg_tag *tp);
-extern u32 vio_send_sid(struct vio_driver_state *vio);
-extern int vio_ldc_alloc(struct vio_driver_state *vio,
-                         struct ldc_channel_config *base_cfg, void *event_arg);
-extern void vio_ldc_free(struct vio_driver_state *vio);
-extern int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev,
-                           u8 dev_class, struct vio_version *ver_table,
-                           int ver_table_size, struct vio_driver_ops *ops,
-                           char *name);
-
-extern void vio_port_up(struct vio_driver_state *vio);
+int vio_ldc_send(struct vio_driver_state *vio, void *data, int len);
+void vio_link_state_change(struct vio_driver_state *vio, int event);
+void vio_conn_reset(struct vio_driver_state *vio);
+int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt);
+int vio_validate_sid(struct vio_driver_state *vio,
+                     struct vio_msg_tag *tp);
+u32 vio_send_sid(struct vio_driver_state *vio);
+int vio_ldc_alloc(struct vio_driver_state *vio,
+                  struct ldc_channel_config *base_cfg, void *event_arg);
+void vio_ldc_free(struct vio_driver_state *vio);
+int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev,
+                    u8 dev_class, struct vio_version *ver_table,
+                    int ver_table_size, struct vio_driver_ops *ops,
+                    char *name);
+
+void vio_port_up(struct vio_driver_state *vio);
 
 #endif /* _SPARC64_VIO_H */
diff --git a/arch/sparc/include/asm/visasm.h b/arch/sparc/include/asm/visasm.h
index 39ca301920db..b26673759283 100644
--- a/arch/sparc/include/asm/visasm.h
+++ b/arch/sparc/include/asm/visasm.h
@@ -57,7 +57,8 @@ static inline void save_and_clear_fpu(void) {
 "               " : : "i" (FPRS_FEF|FPRS_DU) :
                 "o5", "g1", "g2", "g3", "g7", "cc");
 }
-extern int vis_emul(struct pt_regs *, unsigned int);
+
+int vis_emul(struct pt_regs *, unsigned int);
 #endif
 
 #endif /* _SPARC64_ASI_H */
diff --git a/arch/sparc/include/asm/xor_64.h b/arch/sparc/include/asm/xor_64.h
index ee8edc68423e..50c882856031 100644
--- a/arch/sparc/include/asm/xor_64.h
+++ b/arch/sparc/include/asm/xor_64.h
@@ -20,13 +20,13 @@
 
 #include <asm/spitfire.h>
 
-extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
-extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
-                      unsigned long *);
-extern void xor_vis_4(unsigned long, unsigned long *, unsigned long *,
-                      unsigned long *, unsigned long *);
-extern void xor_vis_5(unsigned long, unsigned long *, unsigned long *,
-                      unsigned long *, unsigned long *, unsigned long *);
+void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
+void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
+               unsigned long *);
+void xor_vis_4(unsigned long, unsigned long *, unsigned long *,
+               unsigned long *, unsigned long *);
+void xor_vis_5(unsigned long, unsigned long *, unsigned long *,
+               unsigned long *, unsigned long *, unsigned long *);
 
 /* XXX Ugh, write cheetah versions... -DaveM */
 
@@ -38,13 +38,13 @@ static struct xor_block_template xor_block_VIS = {
         .do_5   = xor_vis_5,
 };
 
-extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *);
-extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *,
-                          unsigned long *);
-extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *,
-                          unsigned long *, unsigned long *);
-extern void xor_niagara_5(unsigned long, unsigned long *, unsigned long *,
-                          unsigned long *, unsigned long *, unsigned long *);
+void xor_niagara_2(unsigned long, unsigned long *, unsigned long *);
+void xor_niagara_3(unsigned long, unsigned long *, unsigned long *,
+                   unsigned long *);
+void xor_niagara_4(unsigned long, unsigned long *, unsigned long *,
+                   unsigned long *, unsigned long *);
+void xor_niagara_5(unsigned long, unsigned long *, unsigned long *,
+                   unsigned long *, unsigned long *, unsigned long *);
 
 static struct xor_block_template xor_block_niagara = {
         .name   = "Niagara",
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index d15cc1794b0e..7cf9c6ea3f1f 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -42,7 +42,6 @@ obj-y                   += time_$(BITS).o
 obj-$(CONFIG_SPARC32)   += windows.o
 obj-y                   += cpu.o
 obj-$(CONFIG_SPARC32)   += devices.o
-obj-$(CONFIG_SPARC32)   += tadpole.o
 obj-y                   += ptrace_$(BITS).o
 obj-y                   += unaligned_$(BITS).o
 obj-y                   += una_asm_$(BITS).o
diff --git a/arch/sparc/kernel/audit.c b/arch/sparc/kernel/audit.c
index 8fff0ac63d56..24361b494a93 100644
--- a/arch/sparc/kernel/audit.c
+++ b/arch/sparc/kernel/audit.c
@@ -3,6 +3,8 @@
 #include <linux/audit.h>
 #include <asm/unistd.h>
 
+#include "kernel.h"
+
 static unsigned dir_class[] = {
 #include <asm-generic/audit_dir_write.h>
 ~0U
@@ -40,7 +42,6 @@ int audit_classify_arch(int arch)
 int audit_classify_syscall(int abi, unsigned syscall)
 {
 #ifdef CONFIG_COMPAT
-        extern int sparc32_classify_syscall(unsigned);
         if (abi == AUDIT_ARCH_SPARC)
                 return sparc32_classify_syscall(syscall);
 #endif
@@ -61,11 +62,6 @@ int audit_classify_syscall(int abi, unsigned syscall)
 static int __init audit_classes_init(void)
 {
 #ifdef CONFIG_COMPAT
-        extern __u32 sparc32_dir_class[];
-        extern __u32 sparc32_write_class[];
-        extern __u32 sparc32_read_class[];
-        extern __u32 sparc32_chattr_class[];
-        extern __u32 sparc32_signal_class[];
         audit_register_class(AUDIT_CLASS_WRITE_32, sparc32_write_class);
         audit_register_class(AUDIT_CLASS_READ_32, sparc32_read_class);
         audit_register_class(AUDIT_CLASS_DIR_WRITE_32, sparc32_dir_class);
diff --git a/arch/sparc/kernel/auxio_32.c b/arch/sparc/kernel/auxio_32.c
index e20cc55fb768..ae88c223e4d3 100644
--- a/arch/sparc/kernel/auxio_32.c
+++ b/arch/sparc/kernel/auxio_32.c
@@ -9,12 +9,15 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/export.h>
+
 #include <asm/oplib.h>
 #include <asm/io.h>
 #include <asm/auxio.h>
 #include <asm/string.h>         /* memset(), Linux has no bzero() */
 #include <asm/cpu_type.h>
 
+#include "kernel.h"
+
 /* Probe and map in the Auxiliary I/O register */
 
 /* auxio_register is not static because it is referenced 
@@ -103,7 +106,7 @@ EXPORT_SYMBOL(set_auxio);
 
 /* sun4m power control register (AUXIO2) */
 
-volatile unsigned char * auxio_power_register = NULL;
+volatile u8 __iomem *auxio_power_register = NULL;
 
 void __init auxio_power_probe(void)
 {
@@ -127,8 +130,8 @@ void __init auxio_power_probe(void)
         r.flags = regs.which_io & 0xF;
         r.start = regs.phys_addr;
         r.end = regs.phys_addr + regs.reg_size - 1;
-        auxio_power_register = (unsigned char *) of_ioremap(&r, 0,
-            regs.reg_size, "auxpower");
+        auxio_power_register =
+                (u8 __iomem *)of_ioremap(&r, 0, regs.reg_size, "auxpower");
 
         /* Display a quick message on the console. */
         if (auxio_power_register)
diff --git a/arch/sparc/kernel/btext.c b/arch/sparc/kernel/btext.c
index 57073e56ba9e..987f7ec497cc 100644
--- a/arch/sparc/kernel/btext.c
+++ b/arch/sparc/kernel/btext.c
@@ -137,7 +137,7 @@ static void scrollscreen(void)
 }
 #endif /* ndef NO_SCROLL */
 
-void btext_drawchar(char c)
+static void btext_drawchar(char c)
 {
         int cline = 0;
 #ifdef NO_SCROLL
diff --git a/arch/sparc/kernel/compat_audit.c b/arch/sparc/kernel/compat_audit.c
index d865575b25bf..7062263d09c1 100644
--- a/arch/sparc/kernel/compat_audit.c
+++ b/arch/sparc/kernel/compat_audit.c
@@ -1,5 +1,6 @@
 #define __32bit_syscall_numbers__
 #include <asm/unistd.h>
+#include "kernel.h"
 
 unsigned sparc32_dir_class[] = {
 #include <asm-generic/audit_dir_write.h>
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index 5c5125895db8..82a3a71c451e 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -22,6 +22,7 @@
 #include <asm/cpudata.h>
 
 #include "kernel.h"
+#include "entry.h"
 
 DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 };
 EXPORT_PER_CPU_SYMBOL(__cpu_data);
diff --git a/arch/sparc/kernel/cpumap.h b/arch/sparc/kernel/cpumap.h
index e639880ab864..9dac398c434a 100644
--- a/arch/sparc/kernel/cpumap.h
+++ b/arch/sparc/kernel/cpumap.h
@@ -2,8 +2,8 @@
 #define _CPUMAP_H
 
 #ifdef CONFIG_SMP
-extern void cpu_map_rebuild(void);
-extern int  map_to_cpu(unsigned int index);
+void cpu_map_rebuild(void);
+int map_to_cpu(unsigned int index);
 #define cpu_map_init() cpu_map_rebuild()
 #else
 #define cpu_map_init() do {} while (0)
diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c
index 3d465e87f7e2..8d5d09f09caf 100644
--- a/arch/sparc/kernel/devices.c
+++ b/arch/sparc/kernel/devices.c
@@ -19,8 +19,9 @@
 #include <asm/smp.h>
 #include <asm/cpudata.h>
 #include <asm/cpu_type.h>
+#include <asm/setup.h>
 
-extern void clock_stop_probe(void); /* tadpole.c */
+#include "kernel.h"
 
 static char *cpu_mid_prop(void)
 {
@@ -131,11 +132,6 @@ void __init device_scan(void)
         }
 #endif /* !CONFIG_SMP */
 
-        {
-                extern void auxio_probe(void);
-                extern void auxio_power_probe(void);
-                auxio_probe();
-                auxio_power_probe();
-        }
-        clock_stop_probe();
+        auxio_probe();
+        auxio_power_probe();
 }
diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h
index 140966fbd303..ebaba6167dd4 100644
--- a/arch/sparc/kernel/entry.h
+++ b/arch/sparc/kernel/entry.h
@@ -6,40 +6,39 @@
 #include <linux/init.h>
 
 /* irq */
-extern void handler_irq(int irq, struct pt_regs *regs);
+void handler_irq(int irq, struct pt_regs *regs);
 
 #ifdef CONFIG_SPARC32
 /* traps */
-extern void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
-extern void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
-                                   unsigned long npc, unsigned long psr);
-
-extern void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
-                                unsigned long npc, unsigned long psr);
-extern void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
-                                   unsigned long npc,
-                                   unsigned long psr);
-extern void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
+void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
+void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
+                            unsigned long npc, unsigned long psr);
+
+void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
+                         unsigned long npc, unsigned long psr);
+void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
+                            unsigned long npc, unsigned long psr);
+void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
+                 unsigned long npc, unsigned long psr);
+void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
+                 unsigned long npc, unsigned long psr);
+void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
+                         unsigned long npc, unsigned long psr);
+void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
+                       unsigned long npc, unsigned long psr);
+void handle_reg_access(struct pt_regs *regs, unsigned long pc,
+                       unsigned long npc, unsigned long psr);
+void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
                         unsigned long npc, unsigned long psr);
-extern void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
-                        unsigned long npc, unsigned long psr);
-extern void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
-                                unsigned long npc, unsigned long psr);
-extern void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
-                              unsigned long npc, unsigned long psr);
-extern void handle_reg_access(struct pt_regs *regs, unsigned long pc,
-                              unsigned long npc, unsigned long psr);
-extern void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
-                               unsigned long npc, unsigned long psr);
-extern void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
-                                unsigned long npc, unsigned long psr);
+void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
+                         unsigned long npc, unsigned long psr);
 
 
 
 /* entry.S */
-extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
-                   void *fpqueue, unsigned long *fpqdepth);
-extern void fpload(unsigned long *fpregs, unsigned long *fsr);
+void fpsave(unsigned long *fpregs, unsigned long *fsr,
+            void *fpqueue, unsigned long *fpqdepth);
+void fpload(unsigned long *fpregs, unsigned long *fsr);
 
 #else /* CONFIG_SPARC32 */
 
@@ -66,123 +65,123 @@ struct pause_patch_entry {
 extern struct pause_patch_entry __pause_3insn_patch,
         __pause_3insn_patch_end;
 
-extern void __init per_cpu_patch(void);
-extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
-                                    struct sun4v_1insn_patch_entry *);
-extern void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
-                                    struct sun4v_2insn_patch_entry *);
-extern void __init sun4v_patch(void);
-extern void __init boot_cpu_id_too_large(int cpu);
+void __init per_cpu_patch(void);
+void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
+                             struct sun4v_1insn_patch_entry *);
+void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
+                             struct sun4v_2insn_patch_entry *);
+void __init sun4v_patch(void);
+void __init boot_cpu_id_too_large(int cpu);
 extern unsigned int dcache_parity_tl1_occurred;
 extern unsigned int icache_parity_tl1_occurred;
 
-extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
-extern void timer_interrupt(int irq, struct pt_regs *regs);
-
-extern void do_notify_resume(struct pt_regs *regs,
-                             unsigned long orig_i0,
-                             unsigned long thread_info_flags);
-
-extern asmlinkage int syscall_trace_enter(struct pt_regs *regs);
-extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
-
-extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
-
-extern void do_fpieee(struct pt_regs *regs);
-extern void do_fpother(struct pt_regs *regs);
-extern void do_tof(struct pt_regs *regs);
-extern void do_div0(struct pt_regs *regs);
-extern void do_illegal_instruction(struct pt_regs *regs);
-extern void mem_address_unaligned(struct pt_regs *regs,
-                                  unsigned long sfar,
-                                  unsigned long sfsr);
-extern void sun4v_do_mna(struct pt_regs *regs,
-                         unsigned long addr,
-                         unsigned long type_ctx);
-extern void do_privop(struct pt_regs *regs);
-extern void do_privact(struct pt_regs *regs);
-extern void do_cee(struct pt_regs *regs);
-extern void do_cee_tl1(struct pt_regs *regs);
-extern void do_dae_tl1(struct pt_regs *regs);
-extern void do_iae_tl1(struct pt_regs *regs);
-extern void do_div0_tl1(struct pt_regs *regs);
-extern void do_fpdis_tl1(struct pt_regs *regs);
-extern void do_fpieee_tl1(struct pt_regs *regs);
-extern void do_fpother_tl1(struct pt_regs *regs);
-extern void do_ill_tl1(struct pt_regs *regs);
-extern void do_irq_tl1(struct pt_regs *regs);
-extern void do_lddfmna_tl1(struct pt_regs *regs);
-extern void do_stdfmna_tl1(struct pt_regs *regs);
-extern void do_paw(struct pt_regs *regs);
-extern void do_paw_tl1(struct pt_regs *regs);
-extern void do_vaw(struct pt_regs *regs);
-extern void do_vaw_tl1(struct pt_regs *regs);
-extern void do_tof_tl1(struct pt_regs *regs);
-extern void do_getpsr(struct pt_regs *regs);
-
-extern void spitfire_insn_access_exception(struct pt_regs *regs,
-                                           unsigned long sfsr,
-                                           unsigned long sfar);
-extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
-                                               unsigned long sfsr,
-                                               unsigned long sfar);
-extern void spitfire_data_access_exception(struct pt_regs *regs,
-                                           unsigned long sfsr,
-                                           unsigned long sfar);
-extern void spitfire_data_access_exception_tl1(struct pt_regs *regs,
-                                               unsigned long sfsr,
-                                               unsigned long sfar);
-extern void spitfire_access_error(struct pt_regs *regs,
-                                  unsigned long status_encoded,
-                                  unsigned long afar);
-
-extern void cheetah_fecc_handler(struct pt_regs *regs,
-                                 unsigned long afsr,
-                                 unsigned long afar);
-extern void cheetah_cee_handler(struct pt_regs *regs,
-                                unsigned long afsr,
-                                unsigned long afar);
-extern void cheetah_deferred_handler(struct pt_regs *regs,
-                                     unsigned long afsr,
-                                     unsigned long afar);
-extern void cheetah_plus_parity_error(int type, struct pt_regs *regs);
-
-extern void sun4v_insn_access_exception(struct pt_regs *regs,
-                                        unsigned long addr,
-                                        unsigned long type_ctx);
-extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
-                                            unsigned long addr,
-                                            unsigned long type_ctx);
-extern void sun4v_data_access_exception(struct pt_regs *regs,
-                                        unsigned long addr,
-                                        unsigned long type_ctx);
-extern void sun4v_data_access_exception_tl1(struct pt_regs *regs,
-                                            unsigned long addr,
-                                            unsigned long type_ctx);
-extern void sun4v_resum_error(struct pt_regs *regs,
-                              unsigned long offset);
-extern void sun4v_resum_overflow(struct pt_regs *regs);
-extern void sun4v_nonresum_error(struct pt_regs *regs,
-                                 unsigned long offset);
-extern void sun4v_nonresum_overflow(struct pt_regs *regs);
+asmlinkage void sparc_breakpoint(struct pt_regs *regs);
+void timer_interrupt(int irq, struct pt_regs *regs);
+
+void do_notify_resume(struct pt_regs *regs,
+                      unsigned long orig_i0,
+                      unsigned long thread_info_flags);
+
+asmlinkage int syscall_trace_enter(struct pt_regs *regs);
+asmlinkage void syscall_trace_leave(struct pt_regs *regs);
+
+void bad_trap_tl1(struct pt_regs *regs, long lvl);
+
+void do_fpieee(struct pt_regs *regs);
+void do_fpother(struct pt_regs *regs);
+void do_tof(struct pt_regs *regs);
+void do_div0(struct pt_regs *regs);
+void do_illegal_instruction(struct pt_regs *regs);
+void mem_address_unaligned(struct pt_regs *regs,
+                           unsigned long sfar,
+                           unsigned long sfsr);
+void sun4v_do_mna(struct pt_regs *regs,
+                  unsigned long addr,
+                  unsigned long type_ctx);
+void do_privop(struct pt_regs *regs);
+void do_privact(struct pt_regs *regs);
+void do_cee(struct pt_regs *regs);
+void do_cee_tl1(struct pt_regs *regs);
+void do_dae_tl1(struct pt_regs *regs);
+void do_iae_tl1(struct pt_regs *regs);
+void do_div0_tl1(struct pt_regs *regs);
+void do_fpdis_tl1(struct pt_regs *regs);
+void do_fpieee_tl1(struct pt_regs *regs);
+void do_fpother_tl1(struct pt_regs *regs);
+void do_ill_tl1(struct pt_regs *regs);
+void do_irq_tl1(struct pt_regs *regs);
+void do_lddfmna_tl1(struct pt_regs *regs);
+void do_stdfmna_tl1(struct pt_regs *regs);
+void do_paw(struct pt_regs *regs);
+void do_paw_tl1(struct pt_regs *regs);
+void do_vaw(struct pt_regs *regs);
+void do_vaw_tl1(struct pt_regs *regs);
+void do_tof_tl1(struct pt_regs *regs);
+void do_getpsr(struct pt_regs *regs);
+
+void spitfire_insn_access_exception(struct pt_regs *regs,
+                                    unsigned long sfsr,
+                                    unsigned long sfar);
+void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
+                                        unsigned long sfsr,
+                                        unsigned long sfar);
+void spitfire_data_access_exception(struct pt_regs *regs,
+                                    unsigned long sfsr,
+                                    unsigned long sfar);
+void spitfire_data_access_exception_tl1(struct pt_regs *regs,
+                                        unsigned long sfsr,
+                                        unsigned long sfar);
+void spitfire_access_error(struct pt_regs *regs,
+                           unsigned long status_encoded,
+                           unsigned long afar);
+
+void cheetah_fecc_handler(struct pt_regs *regs,
+                          unsigned long afsr,
+                          unsigned long afar);
+void cheetah_cee_handler(struct pt_regs *regs,
+                         unsigned long afsr,
+                         unsigned long afar);
+void cheetah_deferred_handler(struct pt_regs *regs,
+                              unsigned long afsr,
+                              unsigned long afar);
+void cheetah_plus_parity_error(int type, struct pt_regs *regs);
+
+void sun4v_insn_access_exception(struct pt_regs *regs,
+                                 unsigned long addr,
+                                 unsigned long type_ctx);
+void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
+                                     unsigned long addr,
+                                     unsigned long type_ctx);
+void sun4v_data_access_exception(struct pt_regs *regs,
+                                 unsigned long addr,
+                                 unsigned long type_ctx);
+void sun4v_data_access_exception_tl1(struct pt_regs *regs,
+                                     unsigned long addr,
+                                     unsigned long type_ctx);
+void sun4v_resum_error(struct pt_regs *regs,
+                       unsigned long offset);
+void sun4v_resum_overflow(struct pt_regs *regs);
+void sun4v_nonresum_error(struct pt_regs *regs,
+                          unsigned long offset);
+void sun4v_nonresum_overflow(struct pt_regs *regs);
 
 extern unsigned long sun4v_err_itlb_vaddr;
 extern unsigned long sun4v_err_itlb_ctx;
 extern unsigned long sun4v_err_itlb_pte;
 extern unsigned long sun4v_err_itlb_error;
 
-extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
+void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
 
 extern unsigned long sun4v_err_dtlb_vaddr;
 extern unsigned long sun4v_err_dtlb_ctx;
 extern unsigned long sun4v_err_dtlb_pte;
 extern unsigned long sun4v_err_dtlb_error;
 
-extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
-extern void hypervisor_tlbop_error(unsigned long err,
-                                   unsigned long op);
-extern void hypervisor_tlbop_error_xcall(unsigned long err,
-                                         unsigned long op);
+void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
+void hypervisor_tlbop_error(unsigned long err,
+                            unsigned long op);
+void hypervisor_tlbop_error_xcall(unsigned long err,
+                                  unsigned long op);
 
 /* WARNING: The error trap handlers in assembly know the precise
  *          layout of the following structure.
@@ -248,8 +247,8 @@ struct ino_bucket {
 extern struct ino_bucket *ivector_table;
 extern unsigned long ivector_table_pa;
 
-extern void init_irqwork_curcpu(void);
-extern void sun4v_register_mondo_queues(int this_cpu);
+void init_irqwork_curcpu(void);
+void sun4v_register_mondo_queues(int this_cpu);
 
 #endif /* CONFIG_SPARC32 */
 #endif /* _ENTRY_H */
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 76663b019eb5..bfa4d0c2df42 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -21,6 +21,7 @@
 #include <asm/iommu.h>
 
 #include "iommu_common.h"
+#include "kernel.h"
 
 #define STC_CTXMATCH_ADDR(STC, CTX)     \
         ((STC)->strbuf_ctxmatch_base + ((CTX) << 3))
@@ -840,8 +841,6 @@ static struct dma_map_ops sun4u_dma_ops = {
 struct dma_map_ops *dma_ops = &sun4u_dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
-extern int pci64_dma_supported(struct pci_dev *pdev, u64 device_mask);
-
 int dma_supported(struct device *dev, u64 device_mask)
 {
         struct iommu *iommu = dev->archdata.iommu;
diff --git a/arch/sparc/kernel/iommu_common.h b/arch/sparc/kernel/iommu_common.h
index 591f5879039c..1ec0de4156e7 100644
--- a/arch/sparc/kernel/iommu_common.h
+++ b/arch/sparc/kernel/iommu_common.h
@@ -48,12 +48,12 @@ static inline int is_span_boundary(unsigned long entry,
         return iommu_is_span_boundary(entry, nr, shift, boundary_size);
 }
 
-extern unsigned long iommu_range_alloc(struct device *dev,
-                                       struct iommu *iommu,
-                                       unsigned long npages,
-                                       unsigned long *handle);
-extern void iommu_range_free(struct iommu *iommu,
-                             dma_addr_t dma_addr,
-                             unsigned long npages);
+unsigned long iommu_range_alloc(struct device *dev,
+                                struct iommu *iommu,
+                                unsigned long npages,
+                                unsigned long *handle);
+void iommu_range_free(struct iommu *iommu,
+                      dma_addr_t dma_addr,
+                      unsigned long npages);
 
 #endif /* _IOMMU_COMMON_H */
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index e7e215dfa866..7f08ec8a7c68 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -186,7 +186,7 @@ static void __iomem *_sparc_alloc_io(unsigned int busno, unsigned long phys,
 
         if (name == NULL) name = "???";
 
-        if ((xres = xres_alloc()) != 0) {
+        if ((xres = xres_alloc()) != NULL) {
                 tack = xres->xname;
                 res = &xres->xres;
         } else {
@@ -400,7 +400,7 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
         BUG();
 }
 
-struct dma_map_ops sbus_dma_ops = {
+static struct dma_map_ops sbus_dma_ops = {
         .alloc                  = sbus_alloc_coherent,
         .free                   = sbus_free_coherent,
         .map_page               = sbus_map_page,
@@ -681,7 +681,7 @@ static int sparc_io_proc_show(struct seq_file *m, void *v)
         const char *nm;
 
         for (r = root->child; r != NULL; r = r->sibling) {
-                if ((nm = r->name) == 0) nm = "???";
+                if ((nm = r->name) == NULL) nm = "???";
                 seq_printf(m, "%016llx-%016llx: %s\n",
                                 (unsigned long long)r->start,
                                 (unsigned long long)r->end, nm);
diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h
index b66b6aad1d6d..70a0b8ddd0ba 100644
--- a/arch/sparc/kernel/irq.h
+++ b/arch/sparc/kernel/irq.h
@@ -82,11 +82,20 @@ void handler_irq(unsigned int pil, struct pt_regs *regs);
 
 unsigned long leon_get_irqmask(unsigned int irq);
 
+/* irq_32.c */
+void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs);
+
+/* sun4m_irq.c */
+void sun4m_nmi(struct pt_regs *regs);
+
+/* sun4d_irq.c */
+void sun4d_handler_irq(unsigned int pil, struct pt_regs *regs);
+
 #ifdef CONFIG_SMP
 
 /* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */
 #define SUN4D_IPI_IRQ 13
 
-extern void sun4d_ipi_interrupt(void);
+void sun4d_ipi_interrupt(void);
 
 #endif
diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c
index c145f6fd123b..a979e99f8751 100644
--- a/arch/sparc/kernel/irq_32.c
+++ b/arch/sparc/kernel/irq_32.c
@@ -17,6 +17,7 @@
 
 #include <asm/cacheflush.h>
 #include <asm/cpudata.h>
+#include <asm/setup.h>
 #include <asm/pcic.h>
 #include <asm/leon.h>
 
diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h
index a702d9ab019c..e7f652be9e61 100644
--- a/arch/sparc/kernel/kernel.h
+++ b/arch/sparc/kernel/kernel.h
@@ -2,6 +2,7 @@
 #define __SPARC_KERNEL_H
 
 #include <linux/interrupt.h>
+#include <linux/ftrace.h>
 
 #include <asm/traps.h>
 #include <asm/head.h>
@@ -15,62 +16,111 @@ extern int ncpus_probed;
 #ifdef CONFIG_SPARC64
 /* setup_64.c */
 struct seq_file;
-extern void cpucap_info(struct seq_file *);
+void cpucap_info(struct seq_file *);
 
-static inline unsigned long kimage_addr_to_ra(const char *p)
+static inline unsigned long kimage_addr_to_ra(const void *p)
 {
         unsigned long val = (unsigned long) p;
 
         return kern_base + (val - KERNBASE);
 }
+
+/* sys_sparc_64.c */
+asmlinkage long sys_kern_features(void);
+
+/* unaligned_64.c */
+asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn);
+int handle_popc(u32 insn, struct pt_regs *regs);
+void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr);
+void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr);
+
+/* smp_64.c */
+void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs);
+void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs);
+void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs);
+void __irq_entry smp_penguin_jailcell(int irq, struct pt_regs *regs);
+void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs);
+
+/* kgdb_64.c */
+void __irq_entry smp_kgdb_capture_client(int irq, struct pt_regs *regs);
+
+/* pci.c */
+int pci64_dma_supported(struct pci_dev *pdev, u64 device_mask);
+
+/* signal32.c */
+void do_sigreturn32(struct pt_regs *regs);
+asmlinkage void do_rt_sigreturn32(struct pt_regs *regs);
+void do_signal32(struct pt_regs * regs);
+asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp);
+
+/* compat_audit.c */
+extern unsigned sparc32_dir_class[];
+extern unsigned sparc32_chattr_class[];
+extern unsigned sparc32_write_class[];
+extern unsigned sparc32_read_class[];
+extern unsigned sparc32_signal_class[];
+int sparc32_classify_syscall(unsigned syscall);
 #endif
 
 #ifdef CONFIG_SPARC32
 /* setup_32.c */
+struct linux_romvec;
 void sparc32_start_kernel(struct linux_romvec *rp);
 
 /* cpu.c */
-extern void cpu_probe(void);
+void cpu_probe(void);
 
 /* traps_32.c */
-extern void handle_hw_divzero(struct pt_regs *regs, unsigned long pc,
-                              unsigned long npc, unsigned long psr);
+void handle_hw_divzero(struct pt_regs *regs, unsigned long pc,
+                       unsigned long npc, unsigned long psr);
 /* irq_32.c */
 extern struct irqaction static_irqaction[];
 extern int static_irq_count;
 extern spinlock_t irq_action_lock;
 
-extern void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs);
-extern void init_IRQ(void);
+void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs);
+void init_IRQ(void);
 
 /* sun4m_irq.c */
-extern void sun4m_init_IRQ(void);
-extern void sun4m_unmask_profile_irq(void);
-extern void sun4m_clear_profile_irq(int cpu);
+void sun4m_init_IRQ(void);
+void sun4m_unmask_profile_irq(void);
+void sun4m_clear_profile_irq(int cpu);
 
 /* sun4m_smp.c */
 void sun4m_cpu_pre_starting(void *arg);
 void sun4m_cpu_pre_online(void *arg);
+void __init smp4m_boot_cpus(void);
+int smp4m_boot_one_cpu(int i, struct task_struct *idle);
+void __init smp4m_smp_done(void);
+void smp4m_cross_call_irq(void);
+void smp4m_percpu_timer_interrupt(struct pt_regs *regs);
 
 /* sun4d_irq.c */
 extern spinlock_t sun4d_imsk_lock;
 
-extern void sun4d_init_IRQ(void);
-extern int sun4d_request_irq(unsigned int irq,
-                             irq_handler_t handler,
-                             unsigned long irqflags,
-                             const char *devname, void *dev_id);
-extern int show_sun4d_interrupts(struct seq_file *, void *);
-extern void sun4d_distribute_irqs(void);
-extern void sun4d_free_irq(unsigned int irq, void *dev_id);
+void sun4d_init_IRQ(void);
+int sun4d_request_irq(unsigned int irq,
+                      irq_handler_t handler,
+                      unsigned long irqflags,
+                      const char *devname, void *dev_id);
+int show_sun4d_interrupts(struct seq_file *, void *);
+void sun4d_distribute_irqs(void);
+void sun4d_free_irq(unsigned int irq, void *dev_id);
 
 /* sun4d_smp.c */
 void sun4d_cpu_pre_starting(void *arg);
 void sun4d_cpu_pre_online(void *arg);
+void __init smp4d_boot_cpus(void);
+int smp4d_boot_one_cpu(int i, struct task_struct *idle);
+void __init smp4d_smp_done(void);
+void smp4d_cross_call_irq(void);
+void smp4d_percpu_timer_interrupt(struct pt_regs *regs);
 
 /* leon_smp.c */
 void leon_cpu_pre_starting(void *arg);
 void leon_cpu_pre_online(void *arg);
+void leonsmp_ipi_interrupt(void);
+void leon_cross_call_irq(void);
 
 /* head_32.S */
 extern unsigned int t_nmi[];
@@ -89,12 +139,48 @@ extern unsigned int real_irq_entry[];
 extern unsigned int smp4d_ticker[];
 extern unsigned int patchme_maybe_smp_msg[];
 
-extern void floppy_hardint(void);
+void floppy_hardint(void);
 
 /* trampoline_32.S */
 extern unsigned long sun4m_cpu_startup;
 extern unsigned long sun4d_cpu_startup;
 
+/* process_32.c */
+asmlinkage int sparc_do_fork(unsigned long clone_flags,
+                             unsigned long stack_start,
+                             struct pt_regs *regs,
+                             unsigned long stack_size);
+
+/* signal_32.c */
+asmlinkage void do_sigreturn(struct pt_regs *regs);
+asmlinkage void do_rt_sigreturn(struct pt_regs *regs);
+void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0,
+                      unsigned long thread_info_flags);
+asmlinkage int do_sys_sigstack(struct sigstack __user *ssptr,
+                               struct sigstack __user *ossptr,
+                               unsigned long sp);
+
+/* ptrace_32.c */
+asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p);
+
+/* unaligned_32.c */
+asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn);
+asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn);
+
+/* windows.c */
+void try_to_clear_window_buffer(struct pt_regs *regs, int who);
+
+/* auxio_32.c */
+void __init auxio_probe(void);
+void __init auxio_power_probe(void);
+
+/* pcic.c */
+extern void __iomem *pcic_regs;
+void pcic_nmi(unsigned int pend, struct pt_regs *regs);
+
+/* time_32.c */
+void __init time_init(void);
+
 #else /* CONFIG_SPARC32 */
 #endif /* CONFIG_SPARC32 */
 #endif /* !(__SPARC_KERNEL_H) */
diff --git a/arch/sparc/kernel/kgdb_64.c b/arch/sparc/kernel/kgdb_64.c
index b45fe3fb4d2c..cbf21d0870e0 100644
--- a/arch/sparc/kernel/kgdb_64.c
+++ b/arch/sparc/kernel/kgdb_64.c
@@ -13,6 +13,8 @@
 #include <asm/ptrace.h>
 #include <asm/irq.h>
 
+#include "kernel.h"
+
 void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
 {
         struct reg_window *win;
diff --git a/arch/sparc/kernel/kprobes.c b/arch/sparc/kernel/kprobes.c
index 1b0973503197..98d712843413 100644
--- a/arch/sparc/kernel/kprobes.c
+++ b/arch/sparc/kernel/kprobes.c
@@ -512,7 +512,8 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 /*
  * Called when the probe at kretprobe trampoline is hit
  */
-int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
+static int __kprobes trampoline_probe_handler(struct kprobe *p,
+                                              struct pt_regs *regs)
 {
         struct kretprobe_instance *ri = NULL;
         struct hlist_head *head, empty_rp;
@@ -576,7 +577,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
         return 1;
 }
 
-void kretprobe_trampoline_holder(void)
+static void __used kretprobe_trampoline_holder(void)
 {
         asm volatile(".global kretprobe_trampoline\n"
                      "kretprobe_trampoline:\n"
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index b7c68976cbc7..683c4af999de 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -32,12 +32,12 @@ struct leon3_gptimer_regs_map *leon3_gptimer_regs; /* timer controller base addr
 
 int leondebug_irq_disable;
 int leon_debug_irqout;
-static int dummy_master_l10_counter;
+static volatile u32 dummy_master_l10_counter;
 unsigned long amba_system_id;
 static DEFINE_SPINLOCK(leon_irq_lock);
 
+static unsigned long leon3_gptimer_idx; /* Timer Index (0..6) within Timer Core */
 unsigned long leon3_gptimer_irq; /* interrupt controller irq number */
-unsigned long leon3_gptimer_idx; /* Timer Index (0..6) within Timer Core */
 unsigned int sparc_leon_eirq;
 #define LEON_IMASK(cpu) (&leon3_irqctrl_regs->mask[cpu])
 #define LEON_IACK (&leon3_irqctrl_regs->iclear)
@@ -65,7 +65,7 @@ static void leon_handle_ext_irq(unsigned int irq, struct irq_desc *desc)
 }
 
 /* The extended IRQ controller has been found, this function registers it */
-void leon_eirq_setup(unsigned int eirq)
+static void leon_eirq_setup(unsigned int eirq)
 {
         unsigned long mask, oldmask;
         unsigned int veirq;
@@ -270,7 +270,7 @@ static u32 leon_cycles_offset(void)
 #ifdef CONFIG_SMP
 
 /* smp clockevent irq */
-irqreturn_t leon_percpu_timer_ce_interrupt(int irq, void *unused)
+static irqreturn_t leon_percpu_timer_ce_interrupt(int irq, void *unused)
 {
         struct clock_event_device *ce;
         int cpu = smp_processor_id();
@@ -313,7 +313,7 @@ void __init leon_init_timers(void)
 
         leondebug_irq_disable = 0;
         leon_debug_irqout = 0;
-        master_l10_counter = (unsigned int *)&dummy_master_l10_counter;
+        master_l10_counter = (u32 __iomem *)&dummy_master_l10_counter;
         dummy_master_l10_counter = 0;
 
         rootnp = of_find_node_by_path("/ambapp0");
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index e16c4157e1ae..899b7203a4e4 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -98,82 +98,3 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
 {
         return res->start;
 }
-
-/* in/out routines taken from pcic.c
- *
- * This probably belongs here rather than ioport.c because
- * we do not want this crud linked into SBus kernels.
- * Also, think for a moment about likes of floppy.c that
- * include architecture specific parts. They may want to redefine ins/outs.
- *
- * We do not use horrible macros here because we want to
- * advance pointer by sizeof(size).
- */
-void outsb(unsigned long addr, const void *src, unsigned long count)
-{
-        while (count) {
-                count -= 1;
-                outb(*(const char *)src, addr);
-                src += 1;
-                /* addr += 1; */
-        }
-}
-EXPORT_SYMBOL(outsb);
-
-void outsw(unsigned long addr, const void *src, unsigned long count)
-{
-        while (count) {
-                count -= 2;
-                outw(*(const short *)src, addr);
-                src += 2;
-                /* addr += 2; */
-        }
-}
-EXPORT_SYMBOL(outsw);
-
-void outsl(unsigned long addr, const void *src, unsigned long count)
-{
-        while (count) {
-                count -= 4;
-                outl(*(const long *)src, addr);
-                src += 4;
-                /* addr += 4; */
-        }
-}
-EXPORT_SYMBOL(outsl);
-
-void insb(unsigned long addr, void *dst, unsigned long count)
-{
-        while (count) {
-                count -= 1;
-                *(unsigned char *)dst = inb(addr);
-                dst += 1;
-                /* addr += 1; */
-        }
-}
-EXPORT_SYMBOL(insb);
-
-void insw(unsigned long addr, void *dst, unsigned long count)
-{
-        while (count) {
-                count -= 2;
-                *(unsigned short *)dst = inw(addr);
-                dst += 2;
-                /* addr += 2; */
-        }
-}
-EXPORT_SYMBOL(insw);
-
-void insl(unsigned long addr, void *dst, unsigned long count)
-{
-        while (count) {
-                count -= 4;
-                /*
-                 * XXX I am sure we are in for an unaligned trap here.
-                 */
-                *(unsigned long *)dst = inl(addr);
-                dst += 4;
-                /* addr += 4; */
-        }
-}
-EXPORT_SYMBOL(insl);
diff --git a/arch/sparc/kernel/leon_pci_grpci1.c b/arch/sparc/kernel/leon_pci_grpci1.c
index 6df26e37f879..c8bf26edfa7c 100644
--- a/arch/sparc/kernel/leon_pci_grpci1.c
+++ b/arch/sparc/kernel/leon_pci_grpci1.c
@@ -80,7 +80,7 @@ struct grpci1_regs {
 
 struct grpci1_priv {
         struct leon_pci_info    info; /* must be on top of this structure */
-        struct grpci1_regs      *regs;          /* GRPCI register map */
+        struct grpci1_regs __iomem *regs;               /* GRPCI register map */
         struct device           *dev;
         int                     pci_err_mask;   /* STATUS register error mask */
         int                     irq;            /* LEON irqctrl GRPCI IRQ */
@@ -101,7 +101,7 @@ static struct grpci1_priv *grpci1priv;
 static int grpci1_cfg_w32(struct grpci1_priv *priv, unsigned int bus,
                                 unsigned int devfn, int where, u32 val);
 
-int grpci1_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int grpci1_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
         struct grpci1_priv *priv = dev->bus->sysdata;
         int irq_group;
@@ -144,7 +144,7 @@ static int grpci1_cfg_r32(struct grpci1_priv *priv, unsigned int bus,
                 grpci1_cfg_w32(priv, TGT, 0, PCI_COMMAND, tmp);
         } else {
                 /* Bus always little endian (unaffected by byte-swapping) */
-                *val = flip_dword(tmp);
+                *val = swab32(tmp);
         }
 
         return 0;
@@ -197,7 +197,7 @@ static int grpci1_cfg_w32(struct grpci1_priv *priv, unsigned int bus,
 
         pci_conf = (unsigned int *) (priv->pci_conf |
                                                 (devfn << 8) | (where & 0xfc));
-        LEON3_BYPASS_STORE_PA(pci_conf, flip_dword(val));
+        LEON3_BYPASS_STORE_PA(pci_conf, swab32(val));
 
         return 0;
 }
@@ -417,10 +417,10 @@ out:
  *  BAR1: peripheral DMA to host's memory (size at least 256MByte)
  *  BAR2..BAR5: not implemented in hardware
  */
-void grpci1_hw_init(struct grpci1_priv *priv)
+static void grpci1_hw_init(struct grpci1_priv *priv)
 {
         u32 ahbadr, bar_sz, data, pciadr;
-        struct grpci1_regs *regs = priv->regs;
+        struct grpci1_regs __iomem *regs = priv->regs;
 
         /* set 1:1 mapping between AHB -> PCI memory space */
         REGSTORE(regs->cfg_stat, priv->pci_area & 0xf0000000);
@@ -509,7 +509,7 @@ static irqreturn_t grpci1_err_interrupt(int irq, void *arg)
 
 static int grpci1_of_probe(struct platform_device *ofdev)
 {
-        struct grpci1_regs *regs;
+        struct grpci1_regs __iomem *regs;
         struct grpci1_priv *priv;
         int err, len;
         const int *tmp;
@@ -690,7 +690,7 @@ err3:
 err2:
         release_resource(&priv->info.mem_space);
 err1:
-        iounmap((void *)priv->pci_io_va);
+        iounmap((void __iomem *)priv->pci_io_va);
         grpci1priv = NULL;
         return err;
 }
diff --git a/arch/sparc/kernel/leon_pci_grpci2.c b/arch/sparc/kernel/leon_pci_grpci2.c
index 24d6a4446349..e433a4d69fe0 100644
--- a/arch/sparc/kernel/leon_pci_grpci2.c
+++ b/arch/sparc/kernel/leon_pci_grpci2.c
@@ -191,7 +191,7 @@ struct grpci2_cap_first {
 
 struct grpci2_priv {
         struct leon_pci_info    info; /* must be on top of this structure */
-        struct grpci2_regs      *regs;
+        struct grpci2_regs __iomem *regs;
         char                    irq;
         char                    irq_mode; /* IRQ Mode from CAPSTS REG */
         char                    bt_enabled;
@@ -215,10 +215,10 @@ struct grpci2_priv {
         struct grpci2_barcfg    tgtbars[6];
 };
 
-DEFINE_SPINLOCK(grpci2_dev_lock);
-struct grpci2_priv *grpci2priv;
+static DEFINE_SPINLOCK(grpci2_dev_lock);
+static struct grpci2_priv *grpci2priv;
 
-int grpci2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int grpci2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
         struct grpci2_priv *priv = dev->bus->sysdata;
         int irq_group;
@@ -270,7 +270,7 @@ static int grpci2_cfg_r32(struct grpci2_priv *priv, unsigned int bus,
                 *val = 0xffffffff;
         } else {
                 /* Bus always little endian (unaffected by byte-swapping) */
-                *val = flip_dword(tmp);
+                *val = swab32(tmp);
         }
 
         return 0;
@@ -328,7 +328,7 @@ static int grpci2_cfg_w32(struct grpci2_priv *priv, unsigned int bus,
 
         pci_conf = (unsigned int *) (priv->pci_conf |
                                                 (devfn << 8) | (where & 0xfc));
-        LEON3_BYPASS_STORE_PA(pci_conf, flip_dword(val));
+        LEON3_BYPASS_STORE_PA(pci_conf, swab32(val));
 
         /* Wait until GRPCI2 signals that CFG access is done, it should be
          * done instantaneously unless a DMA operation is ongoing...
@@ -561,10 +561,10 @@ out:
         return virq;
 }
 
-void grpci2_hw_init(struct grpci2_priv *priv)
+static void grpci2_hw_init(struct grpci2_priv *priv)
 {
         u32 ahbadr, pciadr, bar_sz, capptr, io_map, data;
-        struct grpci2_regs *regs = priv->regs;
+        struct grpci2_regs __iomem *regs = priv->regs;
         int i;
         struct grpci2_barcfg *barcfg = priv->tgtbars;
 
@@ -655,7 +655,7 @@ static irqreturn_t grpci2_jump_interrupt(int irq, void *arg)
 static irqreturn_t grpci2_err_interrupt(int irq, void *arg)
 {
         struct grpci2_priv *priv = arg;
-        struct grpci2_regs *regs = priv->regs;
+        struct grpci2_regs __iomem *regs = priv->regs;
         unsigned int status;
 
         status = REGLOAD(regs->sts_cap);
@@ -682,7 +682,7 @@ static irqreturn_t grpci2_err_interrupt(int irq, void *arg)
 
 static int grpci2_of_probe(struct platform_device *ofdev)
 {
-        struct grpci2_regs *regs;
+        struct grpci2_regs __iomem *regs;
         struct grpci2_priv *priv;
         int err, i, len;
         const int *tmp;
@@ -878,7 +878,7 @@ err4:
         release_resource(&priv->info.mem_space);
 err3:
         err = -ENOMEM;
-        iounmap((void *)priv->pci_io_va);
+        iounmap((void __iomem *)priv->pci_io_va);
 err2:
         kfree(priv);
 err1:
diff --git a/arch/sparc/kernel/leon_pmc.c b/arch/sparc/kernel/leon_pmc.c
index b0b3967a2dd2..ddcf950282ed 100644
--- a/arch/sparc/kernel/leon_pmc.c
+++ b/arch/sparc/kernel/leon_pmc.c
@@ -12,14 +12,14 @@
 #include <asm/processor.h>
 
 /* List of Systems that need fixup instructions around power-down instruction */
-unsigned int pmc_leon_fixup_ids[] = {
+static unsigned int pmc_leon_fixup_ids[] = {
         AEROFLEX_UT699,
         GAISLER_GR712RC,
         LEON4_NEXTREME1,
         0
 };
 
-int pmc_leon_need_fixup(void)
+static int pmc_leon_need_fixup(void)
 {
         unsigned int systemid = amba_system_id >> 16;
         unsigned int *id;
@@ -38,7 +38,7 @@ int pmc_leon_need_fixup(void)
  * CPU idle callback function for systems that need some extra handling
  * See .../arch/sparc/kernel/process.c
  */
-void pmc_leon_idle_fixup(void)
+static void pmc_leon_idle_fixup(void)
 {
         /* Prepare an address to a non-cachable region. APB is always
          * none-cachable. One instruction is executed after the Sleep
@@ -62,7 +62,7 @@ void pmc_leon_idle_fixup(void)
  * CPU idle callback function
  * See .../arch/sparc/kernel/process.c
  */
-void pmc_leon_idle(void)
+static void pmc_leon_idle(void)
 {
         /* Interrupts need to be enabled to not hang the CPU */
         local_irq_enable();
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index 6edf955f987c..018ef11f57df 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -130,7 +130,7 @@ void leon_configure_cache_smp(void)
         local_ops->tlb_all();
 }
 
-void leon_smp_setbroadcast(unsigned int mask)
+static void leon_smp_setbroadcast(unsigned int mask)
 {
         int broadcast =
             ((LEON3_BYPASS_LOAD_PA(&(leon3_irqctrl_regs->mpstatus)) >>
@@ -148,13 +148,6 @@ void leon_smp_setbroadcast(unsigned int mask)
         LEON_BYPASS_STORE_PA(&(leon3_irqctrl_regs->mpbroadcast), mask);
 }
 
-unsigned int leon_smp_getbroadcast(void)
-{
-        unsigned int mask;
-        mask = LEON_BYPASS_LOAD_PA(&(leon3_irqctrl_regs->mpbroadcast));
-        return mask;
-}
-
 int leon_smp_nrcpus(void)
 {
         int nrcpu =
@@ -266,10 +259,6 @@ void __init leon_smp_done(void)
 
 }
 
-void leon_irq_rotate(int cpu)
-{
-}
-
 struct leon_ipi_work {
         int single;
         int msk;
diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c
index 3241f56331c2..de0ee3971f00 100644
--- a/arch/sparc/kernel/of_device_common.c
+++ b/arch/sparc/kernel/of_device_common.c
@@ -5,8 +5,10 @@
 #include <linux/mod_devicetable.h>
 #include <linux/errno.h>
 #include <linux/irq.h>
-#include <linux/of_device.h>
 #include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
 
 #include "of_device_common.h"
 
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 857ad77df9c0..539babf00bb2 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -28,6 +28,7 @@
 #include <asm/apb.h>
 
 #include "pci_impl.h"
+#include "kernel.h"
 
 /* List of all PCI controllers found in the system. */
 struct pci_pbm_info *pci_pbm_root = NULL;
diff --git a/arch/sparc/kernel/pci_impl.h b/arch/sparc/kernel/pci_impl.h
index 5f688531f48c..75803c780af3 100644
--- a/arch/sparc/kernel/pci_impl.h
+++ b/arch/sparc/kernel/pci_impl.h
@@ -48,8 +48,8 @@ struct sparc64_msiq_ops {
                               unsigned long devino);
 };
 
-extern void sparc64_pbm_msi_init(struct pci_pbm_info *pbm,
-                                 const struct sparc64_msiq_ops *ops);
+void sparc64_pbm_msi_init(struct pci_pbm_info *pbm,
+                          const struct sparc64_msiq_ops *ops);
 
 struct sparc64_msiq_cookie {
         struct pci_pbm_info *pbm;
@@ -158,23 +158,23 @@ extern struct pci_pbm_info *pci_pbm_root;
 extern int pci_num_pbms;
 
 /* PCI bus scanning and fixup support. */
-extern void pci_get_pbm_props(struct pci_pbm_info *pbm);
-extern struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
-                                        struct device *parent);
-extern void pci_determine_mem_io_space(struct pci_pbm_info *pbm);
+void pci_get_pbm_props(struct pci_pbm_info *pbm);
+struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
+                                 struct device *parent);
+void pci_determine_mem_io_space(struct pci_pbm_info *pbm);
 
 /* Error reporting support. */
-extern void pci_scan_for_target_abort(struct pci_pbm_info *, struct pci_bus *);
-extern void pci_scan_for_master_abort(struct pci_pbm_info *, struct pci_bus *);
-extern void pci_scan_for_parity_error(struct pci_pbm_info *, struct pci_bus *);
+void pci_scan_for_target_abort(struct pci_pbm_info *, struct pci_bus *);
+void pci_scan_for_master_abort(struct pci_pbm_info *, struct pci_bus *);
+void pci_scan_for_parity_error(struct pci_pbm_info *, struct pci_bus *);
 
 /* Configuration space access. */
-extern void pci_config_read8(u8 *addr, u8 *ret);
-extern void pci_config_read16(u16 *addr, u16 *ret);
-extern void pci_config_read32(u32 *addr, u32 *ret);
-extern void pci_config_write8(u8 *addr, u8 val);
-extern void pci_config_write16(u16 *addr, u16 val);
-extern void pci_config_write32(u32 *addr, u32 val);
+void pci_config_read8(u8 *addr, u8 *ret);
+void pci_config_read16(u16 *addr, u16 *ret);
+void pci_config_read32(u32 *addr, u32 *ret);
+void pci_config_write8(u8 *addr, u8 val);
+void pci_config_write16(u16 *addr, u16 val);
+void pci_config_write32(u32 *addr, u32 val);
 
 extern struct pci_ops sun4u_pci_ops;
 extern struct pci_ops sun4v_pci_ops;
diff --git a/arch/sparc/kernel/pci_sun4v.h b/arch/sparc/kernel/pci_sun4v.h
index 8e9fc3a5b4f5..5642212390b2 100644
--- a/arch/sparc/kernel/pci_sun4v.h
+++ b/arch/sparc/kernel/pci_sun4v.h
@@ -6,87 +6,87 @@
 #ifndef _PCI_SUN4V_H
 #define _PCI_SUN4V_H
 
-extern long pci_sun4v_iommu_map(unsigned long devhandle,
-                                unsigned long tsbid,
-                                unsigned long num_ttes,
-                                unsigned long io_attributes,
-                                unsigned long io_page_list_pa);
-extern unsigned long pci_sun4v_iommu_demap(unsigned long devhandle,
-                                           unsigned long tsbid,
-                                           unsigned long num_ttes);
-extern unsigned long pci_sun4v_iommu_getmap(unsigned long devhandle,
-                                            unsigned long tsbid,
-                                            unsigned long *io_attributes,
-                                            unsigned long *real_address);
-extern unsigned long pci_sun4v_config_get(unsigned long devhandle,
-                                          unsigned long pci_device,
-                                          unsigned long config_offset,
-                                          unsigned long size);
-extern int pci_sun4v_config_put(unsigned long devhandle,
-                                unsigned long pci_device,
-                                unsigned long config_offset,
-                                unsigned long size,
-                                unsigned long data);
+long pci_sun4v_iommu_map(unsigned long devhandle,
+                         unsigned long tsbid,
+                         unsigned long num_ttes,
+                         unsigned long io_attributes,
+                         unsigned long io_page_list_pa);
+unsigned long pci_sun4v_iommu_demap(unsigned long devhandle,
+                                    unsigned long tsbid,
+                                    unsigned long num_ttes);
+unsigned long pci_sun4v_iommu_getmap(unsigned long devhandle,
+                                     unsigned long tsbid,
+                                     unsigned long *io_attributes,
+                                     unsigned long *real_address);
+unsigned long pci_sun4v_config_get(unsigned long devhandle,
+                                   unsigned long pci_device,
+                                   unsigned long config_offset,
+                                   unsigned long size);
+int pci_sun4v_config_put(unsigned long devhandle,
+                         unsigned long pci_device,
+                         unsigned long config_offset,
+                         unsigned long size,
+                         unsigned long data);
 
-extern unsigned long pci_sun4v_msiq_conf(unsigned long devhandle,
+unsigned long pci_sun4v_msiq_conf(unsigned long devhandle,
                                          unsigned long msiqid,
                                          unsigned long msiq_paddr,
                                          unsigned long num_entries);
-extern unsigned long pci_sun4v_msiq_info(unsigned long devhandle,
-                                         unsigned long msiqid,
-                                         unsigned long *msiq_paddr,
-                                         unsigned long *num_entries);
-extern unsigned long pci_sun4v_msiq_getvalid(unsigned long devhandle,
-                                             unsigned long msiqid,
-                                             unsigned long *valid);
-extern unsigned long pci_sun4v_msiq_setvalid(unsigned long devhandle,
-                                             unsigned long msiqid,
-                                             unsigned long valid);
-extern unsigned long pci_sun4v_msiq_getstate(unsigned long devhandle,
-                                             unsigned long msiqid,
-                                             unsigned long *state);
-extern unsigned long pci_sun4v_msiq_setstate(unsigned long devhandle,
-                                             unsigned long msiqid,
-                                             unsigned long state);
-extern unsigned long pci_sun4v_msiq_gethead(unsigned long devhandle,
-                                             unsigned long msiqid,
-                                             unsigned long *head);
-extern unsigned long pci_sun4v_msiq_sethead(unsigned long devhandle,
-                                             unsigned long msiqid,
-                                             unsigned long head);
-extern unsigned long pci_sun4v_msiq_gettail(unsigned long devhandle,
-                                             unsigned long msiqid,
-                                             unsigned long *head);
-extern unsigned long pci_sun4v_msi_getvalid(unsigned long devhandle,
-                                            unsigned long msinum,
-                                            unsigned long *valid);
-extern unsigned long pci_sun4v_msi_setvalid(unsigned long devhandle,
-                                            unsigned long msinum,
-                                            unsigned long valid);
-extern unsigned long pci_sun4v_msi_getmsiq(unsigned long devhandle,
-                                           unsigned long msinum,
-                                           unsigned long *msiq);
-extern unsigned long pci_sun4v_msi_setmsiq(unsigned long devhandle,
-                                           unsigned long msinum,
-                                           unsigned long msiq,
-                                           unsigned long msitype);
-extern unsigned long pci_sun4v_msi_getstate(unsigned long devhandle,
-                                            unsigned long msinum,
-                                            unsigned long *state);
-extern unsigned long pci_sun4v_msi_setstate(unsigned long devhandle,
-                                            unsigned long msinum,
-                                            unsigned long state);
-extern unsigned long pci_sun4v_msg_getmsiq(unsigned long devhandle,
-                                           unsigned long msinum,
-                                           unsigned long *msiq);
-extern unsigned long pci_sun4v_msg_setmsiq(unsigned long devhandle,
-                                           unsigned long msinum,
-                                           unsigned long msiq);
-extern unsigned long pci_sun4v_msg_getvalid(unsigned long devhandle,
-                                            unsigned long msinum,
-                                            unsigned long *valid);
-extern unsigned long pci_sun4v_msg_setvalid(unsigned long devhandle,
-                                            unsigned long msinum,
-                                            unsigned long valid);
+unsigned long pci_sun4v_msiq_info(unsigned long devhandle,
+                                  unsigned long msiqid,
+                                  unsigned long *msiq_paddr,
+                                  unsigned long *num_entries);
+unsigned long pci_sun4v_msiq_getvalid(unsigned long devhandle,
+                                      unsigned long msiqid,
+                                      unsigned long *valid);
+unsigned long pci_sun4v_msiq_setvalid(unsigned long devhandle,
+                                      unsigned long msiqid,
+                                      unsigned long valid);
+unsigned long pci_sun4v_msiq_getstate(unsigned long devhandle,
+                                      unsigned long msiqid,
+                                      unsigned long *state);
+unsigned long pci_sun4v_msiq_setstate(unsigned long devhandle,
+                                      unsigned long msiqid,
+                                      unsigned long state);
+unsigned long pci_sun4v_msiq_gethead(unsigned long devhandle,
+                                     unsigned long msiqid,
+                                     unsigned long *head);
+unsigned long pci_sun4v_msiq_sethead(unsigned long devhandle,
+                                     unsigned long msiqid,
+                                     unsigned long head);
+unsigned long pci_sun4v_msiq_gettail(unsigned long devhandle,
+                                      unsigned long msiqid,
+                                      unsigned long *head);
+unsigned long pci_sun4v_msi_getvalid(unsigned long devhandle,
+                                     unsigned long msinum,
+                                     unsigned long *valid);
+unsigned long pci_sun4v_msi_setvalid(unsigned long devhandle,
+                                     unsigned long msinum,
+                                     unsigned long valid);
+unsigned long pci_sun4v_msi_getmsiq(unsigned long devhandle,
+                                    unsigned long msinum,
+                                    unsigned long *msiq);
+unsigned long pci_sun4v_msi_setmsiq(unsigned long devhandle,
+                                    unsigned long msinum,
+                                    unsigned long msiq,
+                                    unsigned long msitype);
+unsigned long pci_sun4v_msi_getstate(unsigned long devhandle,
+                                     unsigned long msinum,
+                                     unsigned long *state);
+unsigned long pci_sun4v_msi_setstate(unsigned long devhandle,
+                                     unsigned long msinum,
+                                     unsigned long state);
+unsigned long pci_sun4v_msg_getmsiq(unsigned long devhandle,
+                                    unsigned long msinum,
+                                    unsigned long *msiq);
+unsigned long pci_sun4v_msg_setmsiq(unsigned long devhandle,
+                                    unsigned long msinum,
+                                    unsigned long msiq);
+unsigned long pci_sun4v_msg_getvalid(unsigned long devhandle,
+                                     unsigned long msinum,
+                                     unsigned long *valid);
+unsigned long pci_sun4v_msg_setvalid(unsigned long devhandle,
+                                     unsigned long msinum,
+                                     unsigned long valid);
 
 #endif /* !(_PCI_SUN4V_H) */
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 09f4fdd8d808..6cc78c213c01 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -36,6 +36,7 @@
 #include <asm/uaccess.h>
 #include <asm/irq_regs.h>
 
+#include "kernel.h"
 #include "irq.h"
 
 /*
@@ -162,8 +163,8 @@ static int pcic0_up;
 static struct linux_pcic pcic0;
 
 void __iomem *pcic_regs;
-volatile int pcic_speculative;
-volatile int pcic_trapped;
+static volatile int pcic_speculative;
+static volatile int pcic_trapped;
 
 /* forward */
 unsigned int pcic_build_device_irq(struct platform_device *op,
@@ -329,7 +330,7 @@ int __init pcic_probe(void)
 
         pcic->pcic_res_cfg_addr.name = "pcic_cfg_addr";
         if ((pcic->pcic_config_space_addr =
-            ioremap(regs[2].phys_addr, regs[2].reg_size * 2)) == 0) {
+            ioremap(regs[2].phys_addr, regs[2].reg_size * 2)) == NULL) {
                 prom_printf("PCIC: Error, cannot map "
                             "PCI Configuration Space Address.\n");
                 prom_halt();
@@ -341,7 +342,7 @@ int __init pcic_probe(void)
          */
         pcic->pcic_res_cfg_data.name = "pcic_cfg_data";
         if ((pcic->pcic_config_space_data =
-            ioremap(regs[3].phys_addr, regs[3].reg_size * 2)) == 0) {
+            ioremap(regs[3].phys_addr, regs[3].reg_size * 2)) == NULL) {
                 prom_printf("PCIC: Error, cannot map "
                             "PCI Configuration Space Data.\n");
                 prom_halt();
@@ -353,7 +354,6 @@ int __init pcic_probe(void)
         strcpy(pbm->prom_name, namebuf);
 
         {
-                extern volatile int t_nmi[4];
                 extern int pcic_nmi_trap_patch[4];
 
                 t_nmi[0] = pcic_nmi_trap_patch[0];
@@ -536,7 +536,7 @@ pcic_fill_irq(struct linux_pcic *pcic, struct pci_dev *dev, int node)
                 prom_getstring(node, "name", namebuf, sizeof(namebuf));
         }
 
-        if ((p = pcic->pcic_imap) == 0) {
+        if ((p = pcic->pcic_imap) == NULL) {
                 dev->irq = 0;
                 return;
         }
@@ -670,30 +670,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
         }
 }
 
-/*
- * pcic_pin_to_irq() is exported to bus probing code
- */
-unsigned int
-pcic_pin_to_irq(unsigned int pin, const char *name)
-{
-        struct linux_pcic *pcic = &pcic0;
-        unsigned int irq;
-        unsigned int ivec;
-
-        if (pin < 4) {
-                ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_LO);
-                irq = ivec >> (pin << 2) & 0xF;
-        } else if (pin < 8) {
-                ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_HI);
-                irq = ivec >> ((pin-4) << 2) & 0xF;
-        } else {                                        /* Corrupted map */
-                printk("PCIC: BAD PIN %d FOR %s\n", pin, name);
-                for (;;) {}     /* XXX Cannot panic properly in case of PROLL */
-        }
-/* P3 */ /* printk("PCIC: dev %s pin %d ivec 0x%x irq %x\n", name, pin, ivec, irq); */
-        return irq;
-}
-
 /* Makes compiler happy */
 static volatile int pcic_timer_dummy;
 
@@ -783,7 +759,7 @@ int pcibios_enable_device(struct pci_dev *pdev, int mask)
 void pcic_nmi(unsigned int pend, struct pt_regs *regs)
 {
 
-        pend = flip_dword(pend);
+        pend = swab32(pend);
 
         if (!pcic_speculative || (pend & PCI_SYS_INT_PENDING_PIO) == 0) {
                 /*
@@ -875,82 +851,4 @@ void __init sun4m_pci_init_IRQ(void)
         sparc_config.load_profile_irq = pcic_load_profile_irq;
 }
 
-/*
- * This probably belongs here rather than ioport.c because
- * we do not want this crud linked into SBus kernels.
- * Also, think for a moment about likes of floppy.c that
- * include architecture specific parts. They may want to redefine ins/outs.
- *
- * We do not use horrible macros here because we want to
- * advance pointer by sizeof(size).
- */
-void outsb(unsigned long addr, const void *src, unsigned long count)
-{
-        while (count) {
-                count -= 1;
-                outb(*(const char *)src, addr);
-                src += 1;
-                /* addr += 1; */
-        }
-}
-EXPORT_SYMBOL(outsb);
-
-void outsw(unsigned long addr, const void *src, unsigned long count)
-{
-        while (count) {
-                count -= 2;
-                outw(*(const short *)src, addr);
-                src += 2;
-                /* addr += 2; */
-        }
-}
-EXPORT_SYMBOL(outsw);
-
-void outsl(unsigned long addr, const void *src, unsigned long count)
-{
-        while (count) {
-                count -= 4;
-                outl(*(const long *)src, addr);
-                src += 4;
-                /* addr += 4; */
-        }
-}
-EXPORT_SYMBOL(outsl);
-
-void insb(unsigned long addr, void *dst, unsigned long count)
-{
-        while (count) {
-                count -= 1;
-                *(unsigned char *)dst = inb(addr);
-                dst += 1;
-                /* addr += 1; */
-        }
-}
-EXPORT_SYMBOL(insb);
-
-void insw(unsigned long addr, void *dst, unsigned long count)
-{
-        while (count) {
-                count -= 2;
-                *(unsigned short *)dst = inw(addr);
-                dst += 2;
-                /* addr += 2; */
-        }
-}
-EXPORT_SYMBOL(insw);
-
-void insl(unsigned long addr, void *dst, unsigned long count)
-{
-        while (count) {
-                count -= 4;
-                /*
-                 * XXX I am sure we are in for an unaligned trap here.
-                 */
-                *(unsigned long *)dst = inl(addr);
-                dst += 4;
-                /* addr += 4; */
-        }
-}
-EXPORT_SYMBOL(insl);
-
 subsys_initcall(pcic_init);
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index b5c38faa4ead..8efd33753ad3 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -110,7 +110,7 @@ struct cpu_hw_events {
 
         unsigned int            group_flag;
 };
-DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = { .enabled = 1, };
+static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = { .enabled = 1, };
 
 /* An event map describes the characteristics of a performance
  * counter event.  In particular it gives the encoding as well as
@@ -1153,7 +1153,7 @@ static void perf_stop_nmi_watchdog(void *unused)
                 cpuc->pcr[i] = pcr_ops->read_pcr(i);
 }
 
-void perf_event_grab_pmc(void)
+static void perf_event_grab_pmc(void)
 {
         if (atomic_inc_not_zero(&active_events))
                 return;
@@ -1169,7 +1169,7 @@ void perf_event_grab_pmc(void)
         mutex_unlock(&pmc_grab_mutex);
 }
 
-void perf_event_release_pmc(void)
+static void perf_event_release_pmc(void)
 {
         if (atomic_dec_and_mutex_lock(&active_events, &pmc_grab_mutex)) {
                 if (atomic_read(&nmi_active) == 0)
@@ -1669,7 +1669,7 @@ static bool __init supported_pmu(void)
         return false;
 }
 
-int __init init_hw_perf_events(void)
+static int __init init_hw_perf_events(void)
 {
         pr_info("Performance events: ");
 
@@ -1742,10 +1742,11 @@ static void perf_callchain_user_64(struct perf_callchain_entry *entry,
 
         ufp = regs->u_regs[UREG_I6] + STACK_BIAS;
         do {
-                struct sparc_stackf *usf, sf;
+                struct sparc_stackf __user *usf;
+                struct sparc_stackf sf;
                 unsigned long pc;
 
-                usf = (struct sparc_stackf *) ufp;
+                usf = (struct sparc_stackf __user *)ufp;
                 if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
                         break;
 
@@ -1765,17 +1766,19 @@ static void perf_callchain_user_32(struct perf_callchain_entry *entry,
                 unsigned long pc;
 
                 if (thread32_stack_is_64bit(ufp)) {
-                        struct sparc_stackf *usf, sf;
+                        struct sparc_stackf __user *usf;
+                        struct sparc_stackf sf;
 
                         ufp += STACK_BIAS;
-                        usf = (struct sparc_stackf *) ufp;
+                        usf = (struct sparc_stackf __user *)ufp;
                         if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
                                 break;
                         pc = sf.callers_pc & 0xffffffff;
                         ufp = ((unsigned long) sf.fp) & 0xffffffff;
                 } else {
-                        struct sparc_stackf32 *usf, sf;
-                        usf = (struct sparc_stackf32 *) ufp;
+                        struct sparc_stackf32 __user *usf;
+                        struct sparc_stackf32 sf;
+                        usf = (struct sparc_stackf32 __user *)ufp;
                         if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
                                 break;
                         pc = sf.callers_pc;
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 510baec1b69b..50e7b626afe8 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -10,6 +10,7 @@
 
 #include <stdarg.h>
 
+#include <linux/elfcore.h>
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/sched.h>
@@ -23,6 +24,7 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/slab.h>
+#include <linux/cpu.h>
 
 #include <asm/auxio.h>
 #include <asm/oplib.h>
@@ -38,6 +40,8 @@
 #include <asm/unistd.h>
 #include <asm/setup.h>
 
+#include "kernel.h"
+
 /* 
  * Power management idle function 
  * Set in pm platform drivers (apc.c and pmc.c)
@@ -102,8 +106,12 @@ void machine_restart(char * cmd)
 void machine_power_off(void)
 {
         if (auxio_power_register &&
-            (strcmp(of_console_device->type, "serial") || scons_pwroff))
-                *auxio_power_register |= AUXIO_POWER_OFF;
+            (strcmp(of_console_device->type, "serial") || scons_pwroff)) {
+                u8 power_register = sbus_readb(auxio_power_register);
+                power_register |= AUXIO_POWER_OFF;
+                sbus_writeb(power_register, auxio_power_register);
+        }
+
         machine_halt();
 }
 
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index d7b4967f8fa6..b2988f25e230 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -88,7 +88,7 @@ void arch_cpu_idle(void)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-void arch_cpu_idle_dead()
+void arch_cpu_idle_dead(void)
 {
         sched_preempt_enable_no_resched();
         cpu_play_dead();
diff --git a/arch/sparc/kernel/prom.h b/arch/sparc/kernel/prom.h
index cf5fe1c0b024..890281b12b28 100644
--- a/arch/sparc/kernel/prom.h
+++ b/arch/sparc/kernel/prom.h
@@ -4,7 +4,7 @@
 #include <linux/spinlock.h>
 #include <asm/prom.h>
 
-extern void of_console_init(void);
+void of_console_init(void);
 
 extern unsigned int prom_early_allocated;
 
diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index 9a690d39c01b..20cc5d80a471 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -15,11 +15,12 @@
  *      2 of the License, or (at your option) any later version.
  */
 
+#include <linux/memblock.h>
 #include <linux/kernel.h>
-#include <linux/types.h>
 #include <linux/string.h>
+#include <linux/types.h>
+#include <linux/cpu.h>
 #include <linux/mm.h>
-#include <linux/memblock.h>
 #include <linux/of.h>
 
 #include <asm/prom.h>
diff --git a/arch/sparc/kernel/psycho_common.h b/arch/sparc/kernel/psycho_common.h
index 590b4ed8ab5e..05a6e30a928e 100644
--- a/arch/sparc/kernel/psycho_common.h
+++ b/arch/sparc/kernel/psycho_common.h
@@ -30,19 +30,19 @@ enum psycho_error_type {
         UE_ERR, CE_ERR, PCI_ERR
 };
 
-extern void psycho_check_iommu_error(struct pci_pbm_info *pbm,
-                                     unsigned long afsr,
-                                     unsigned long afar,
-                                     enum psycho_error_type type);
+void psycho_check_iommu_error(struct pci_pbm_info *pbm,
+                              unsigned long afsr,
+                              unsigned long afar,
+                              enum psycho_error_type type);
 
-extern irqreturn_t psycho_pcierr_intr(int irq, void *dev_id);
+irqreturn_t psycho_pcierr_intr(int irq, void *dev_id);
 
-extern int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
-                             u32 dvma_offset, u32 dma_mask,
-                             unsigned long write_complete_offset);
+int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
+                      u32 dvma_offset, u32 dma_mask,
+                      unsigned long write_complete_offset);
 
-extern void psycho_pbm_init_common(struct pci_pbm_info *pbm,
-                                   struct platform_device *op,
-                                   const char *chip_name, int chip_type);
+void psycho_pbm_init_common(struct pci_pbm_info *pbm,
+                            struct platform_device *op,
+                            const char *chip_name, int chip_type);
 
 #endif /* _PSYCHO_COMMON_H */
diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c
index 896ba7c5cd8e..a331fdc11a2c 100644
--- a/arch/sparc/kernel/ptrace_32.c
+++ b/arch/sparc/kernel/ptrace_32.c
@@ -26,6 +26,8 @@
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
 
+#include "kernel.h"
+
 /* #define ALLOW_INIT_TRACING */
 
 /*
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index 1434526970a6..baef495c06bd 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -267,7 +267,7 @@ static __init void leon_patch(void)
 }
 
 struct tt_entry *sparc_ttable;
-struct pt_regs fake_swapper_regs;
+static struct pt_regs fake_swapper_regs;
 
 /* Called from head_32.S - before we have setup anything
  * in the kernel. Be very careful with what you do here.
@@ -365,7 +365,7 @@ void __init setup_arch(char **cmdline_p)
 
         prom_setsync(prom_sync_me);
 
-        if((boot_flags&BOOTME_DEBUG) && (linux_dbvec!=0) && 
+        if((boot_flags & BOOTME_DEBUG) && (linux_dbvec != NULL) &&
            ((*(short *)linux_dbvec) != -1)) {
                 printk("Booted under KADB. Syncing trap table.\n");
                 (*(linux_dbvec->teach_debugger))();
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index ee789d2ef05d..62deba7be1a9 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -31,6 +31,7 @@
 #include <asm/switch_to.h>
 
 #include "sigutil.h"
+#include "kernel.h"
 
 /* This magic should be in g_upper[0] for all upper parts
  * to be valid.
@@ -145,7 +146,7 @@ void do_sigreturn32(struct pt_regs *regs)
         unsigned int psr;
         unsigned pc, npc;
         sigset_t set;
-        unsigned seta[_COMPAT_NSIG_WORDS];
+        compat_sigset_t seta;
         int err, i;
         
         /* Always make any pending restarted system calls return -EINTR */
@@ -209,17 +210,13 @@ void do_sigreturn32(struct pt_regs *regs)
                 if (restore_rwin_state(compat_ptr(rwin_save)))
                         goto segv;
         }
-        err |= __get_user(seta[0], &sf->info.si_mask);
-        err |= copy_from_user(seta+1, &sf->extramask,
+        err |= __get_user(seta.sig[0], &sf->info.si_mask);
+        err |= copy_from_user(&seta.sig[1], &sf->extramask,
                               (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int));
         if (err)
                 goto segv;
-        switch (_NSIG_WORDS) {
-                case 4: set.sig[3] = seta[6] + (((long)seta[7]) << 32);
-                case 3: set.sig[2] = seta[4] + (((long)seta[5]) << 32);
-                case 2: set.sig[1] = seta[2] + (((long)seta[3]) << 32);
-                case 1: set.sig[0] = seta[0] + (((long)seta[1]) << 32);
-        }
+
+        set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32);
         set_current_blocked(&set);
         return;
 
@@ -303,12 +300,7 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
                         goto segv;
         }
 
-        switch (_NSIG_WORDS) {
-                case 4: set.sig[3] = seta.sig[6] + (((long)seta.sig[7]) << 32);
-                case 3: set.sig[2] = seta.sig[4] + (((long)seta.sig[5]) << 32);
-                case 2: set.sig[1] = seta.sig[2] + (((long)seta.sig[3]) << 32);
-                case 1: set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32);
-        }
+        set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32);
         set_current_blocked(&set);
         return;
 segv:
@@ -417,7 +409,7 @@ static int setup_frame32(struct ksignal *ksig, struct pt_regs *regs,
         void __user *tail;
         int sigframe_size;
         u32 psr;
-        unsigned int seta[_COMPAT_NSIG_WORDS];
+        compat_sigset_t seta;
 
         /* 1. Make sure everything is clean */
         synchronize_user_stack();
@@ -481,18 +473,14 @@ static int setup_frame32(struct ksignal *ksig, struct pt_regs *regs,
                 err |= __put_user(0, &sf->rwin_save);
         }
 
-        switch (_NSIG_WORDS) {
-        case 4: seta[7] = (oldset->sig[3] >> 32);
-                seta[6] = oldset->sig[3];
-        case 3: seta[5] = (oldset->sig[2] >> 32);
-                seta[4] = oldset->sig[2];
-        case 2: seta[3] = (oldset->sig[1] >> 32);
-                seta[2] = oldset->sig[1];
-        case 1: seta[1] = (oldset->sig[0] >> 32);
-                seta[0] = oldset->sig[0];
-        }
-        err |= __put_user(seta[0], &sf->info.si_mask);
-        err |= __copy_to_user(sf->extramask, seta + 1,
+        /* If these change we need to know - assignments to seta relies on these sizes */
+        BUILD_BUG_ON(_NSIG_WORDS != 1);
+        BUILD_BUG_ON(_COMPAT_NSIG_WORDS != 2);
+        seta.sig[1] = (oldset->sig[0] >> 32);
+        seta.sig[0] = oldset->sig[0];
+
+        err |= __put_user(seta.sig[0], &sf->info.si_mask);
+        err |= __copy_to_user(sf->extramask, &seta.sig[1],
                               (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int));
 
         if (!wsaved) {
@@ -622,16 +610,8 @@ static int setup_rt_frame32(struct ksignal *ksig, struct pt_regs *regs,
         /* Setup sigaltstack */
         err |= __compat_save_altstack(&sf->stack, regs->u_regs[UREG_FP]);
 
-        switch (_NSIG_WORDS) {
-        case 4: seta.sig[7] = (oldset->sig[3] >> 32);
-                seta.sig[6] = oldset->sig[3];
-        case 3: seta.sig[5] = (oldset->sig[2] >> 32);
-                seta.sig[4] = oldset->sig[2];
-        case 2: seta.sig[3] = (oldset->sig[1] >> 32);
-                seta.sig[2] = oldset->sig[1];
-        case 1: seta.sig[1] = (oldset->sig[0] >> 32);
-                seta.sig[0] = oldset->sig[0];
-        }
+        seta.sig[1] = (oldset->sig[0] >> 32);
+        seta.sig[0] = oldset->sig[0];
         err |= __copy_to_user(&sf->mask, &seta, sizeof(compat_sigset_t));
 
         if (!wsaved) {
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 7d5d8e1f8415..9ee72fc8e0e4 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -28,6 +28,7 @@
 #include <asm/switch_to.h>
 
 #include "sigutil.h"
+#include "kernel.h"
 
 extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
                    void *fpqueue, unsigned long *fpqdepth);
@@ -341,7 +342,7 @@ static int setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs,
         err |= __put_user(0, &sf->extra_size);
 
         if (psr & PSR_EF) {
-                __siginfo_fpu_t *fp = tail;
+                __siginfo_fpu_t __user *fp = tail;
                 tail += sizeof(*fp);
                 err |= save_fpu_state(regs, fp);
                 err |= __put_user(fp, &sf->fpu_save);
@@ -349,7 +350,7 @@ static int setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs,
                 err |= __put_user(0, &sf->fpu_save);
         }
         if (wsaved) {
-                __siginfo_rwin_t *rwp = tail;
+                __siginfo_rwin_t __user *rwp = tail;
                 tail += sizeof(*rwp);
                 err |= save_rwin_state(wsaved, rwp);
                 err |= __put_user(rwp, &sf->rwin_save);
@@ -517,9 +518,9 @@ void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0,
         }
 }
 
-asmlinkage int
-do_sys_sigstack(struct sigstack __user *ssptr, struct sigstack __user *ossptr,
-                unsigned long sp)
+asmlinkage int do_sys_sigstack(struct sigstack __user *ssptr,
+                               struct sigstack __user *ossptr,
+                               unsigned long sp)
 {
         int ret = -EFAULT;
 
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index cd91d010e6d3..1a6999868031 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -35,9 +35,10 @@
 #include <asm/switch_to.h>
 #include <asm/cacheflush.h>
 
-#include "entry.h"
-#include "systbls.h"
 #include "sigutil.h"
+#include "systbls.h"
+#include "kernel.h"
+#include "entry.h"
 
 /* {set, get}context() needed for 64-bit SparcLinux userland. */
 asmlinkage void sparc64_set_context(struct pt_regs *regs)
@@ -492,7 +493,6 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
 
 #ifdef CONFIG_COMPAT
         if (test_thread_flag(TIF_32BIT)) {
-                extern void do_signal32(struct pt_regs *);
                 do_signal32(regs);
                 return;
         }
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index a102bfba6ea8..7958242d63c5 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c
@@ -20,6 +20,7 @@
 #include <linux/seq_file.h>
 #include <linux/cache.h>
 #include <linux/delay.h>
+#include <linux/profile.h>
 #include <linux/cpu.h>
 
 #include <asm/ptrace.h>
@@ -75,8 +76,6 @@ void smp_store_cpu_info(int id)
 
 void __init smp_cpus_done(unsigned int max_cpus)
 {
-        extern void smp4m_smp_done(void);
-        extern void smp4d_smp_done(void);
         unsigned long bogosum = 0;
         int cpu, num = 0;
 
@@ -183,8 +182,6 @@ int setup_profiling_timer(unsigned int multiplier)
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-        extern void __init smp4m_boot_cpus(void);
-        extern void __init smp4d_boot_cpus(void);
         int i, cpuid, extra;
 
         printk("Entering SMP Mode...\n");
@@ -261,8 +258,6 @@ void __init smp_prepare_boot_cpu(void)
 
 int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
-        extern int smp4m_boot_one_cpu(int, struct task_struct *);
-        extern int smp4d_boot_one_cpu(int, struct task_struct *);
         int ret=0;
 
         switch(sparc_cpu_model) {
@@ -297,7 +292,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
         return ret;
 }
 
-void arch_cpu_pre_starting(void *arg)
+static void arch_cpu_pre_starting(void *arg)
 {
         local_ops->cache_all();
         local_ops->tlb_all();
@@ -317,7 +312,7 @@ void arch_cpu_pre_starting(void *arg)
         }
 }
 
-void arch_cpu_pre_online(void *arg)
+static void arch_cpu_pre_online(void *arg)
 {
         unsigned int cpuid = hard_smp_processor_id();
 
@@ -344,7 +339,7 @@ void arch_cpu_pre_online(void *arg)
         }
 }
 
-void sparc_start_secondary(void *arg)
+static void sparc_start_secondary(void *arg)
 {
         unsigned int cpu;
 
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 745a3633ce14..41aa2478f3ca 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -25,6 +25,7 @@
 #include <linux/ftrace.h>
 #include <linux/cpu.h>
 #include <linux/slab.h>
+#include <linux/kgdb.h>
 
 #include <asm/head.h>
 #include <asm/ptrace.h>
@@ -35,6 +36,7 @@
 #include <asm/hvtramp.h>
 #include <asm/io.h>
 #include <asm/timer.h>
+#include <asm/setup.h>
 
 #include <asm/irq.h>
 #include <asm/irq_regs.h>
@@ -52,6 +54,7 @@
 #include <asm/pcr.h>
 
 #include "cpumap.h"
+#include "kernel.h"
 
 DEFINE_PER_CPU(cpumask_t, cpu_sibling_map) = CPU_MASK_NONE;
 cpumask_t cpu_core_map[NR_CPUS] __read_mostly =
@@ -272,14 +275,6 @@ static void smp_synchronize_one_tick(int cpu)
 }
 
 #if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU)
-/* XXX Put this in some common place. XXX */
-static unsigned long kimage_addr_to_ra(void *p)
-{
-        unsigned long val = (unsigned long) p;
-
-        return kern_base + (val - KERNBASE);
-}
-
 static void ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread_reg,
                                 void **descrp)
 {
@@ -867,11 +862,6 @@ extern unsigned long xcall_flush_dcache_page_cheetah;
 #endif
 extern unsigned long xcall_flush_dcache_page_spitfire;
 
-#ifdef CONFIG_DEBUG_DCFLUSH
-extern atomic_t dcpage_flushes;
-extern atomic_t dcpage_flushes_xcall;
-#endif
-
 static inline void __local_flush_dcache_page(struct page *page)
 {
 #ifdef DCACHE_ALIASING_POSSIBLE
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index f8933be3ca8b..a1bb2675b280 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -143,7 +143,7 @@ static void sun4d_sbus_handler_irq(int sbusl)
         }
 }
 
-void sun4d_handler_irq(int pil, struct pt_regs *regs)
+void sun4d_handler_irq(unsigned int pil, struct pt_regs *regs)
 {
         struct pt_regs *old_regs;
         /* SBUS IRQ level (1 - 7) */
@@ -236,7 +236,7 @@ static void sun4d_shutdown_irq(struct irq_data *data)
         irq_unlink(data->irq);
 }
 
-struct irq_chip sun4d_irq = {
+static struct irq_chip sun4d_irq = {
         .name           = "sun4d",
         .irq_startup    = sun4d_startup_irq,
         .irq_shutdown   = sun4d_shutdown_irq,
@@ -285,9 +285,9 @@ static void __init sun4d_load_profile_irqs(void)
         }
 }
 
-unsigned int _sun4d_build_device_irq(unsigned int real_irq,
-                                     unsigned int pil,
-                                     unsigned int board)
+static unsigned int _sun4d_build_device_irq(unsigned int real_irq,
+                                            unsigned int pil,
+                                            unsigned int board)
 {
         struct sun4d_handler_data *handler_data;
         unsigned int irq;
@@ -320,8 +320,8 @@ err_out:
 
 
 
-unsigned int sun4d_build_device_irq(struct platform_device *op,
-                                    unsigned int real_irq)
+static unsigned int sun4d_build_device_irq(struct platform_device *op,
+                                           unsigned int real_irq)
 {
         struct device_node *dp = op->dev.of_node;
         struct device_node *board_parent, *bus = dp->parent;
@@ -383,7 +383,8 @@ err_out:
         return irq;
 }
 
-unsigned int sun4d_build_timer_irq(unsigned int board, unsigned int real_irq)
+static unsigned int sun4d_build_timer_irq(unsigned int board,
+                                          unsigned int real_irq)
 {
         return _sun4d_build_device_irq(real_irq, real_irq, board);
 }
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 71368850dfc0..022c30c72ebd 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -49,6 +49,8 @@
 #include <asm/mmu_context.h>
 #include <asm/compat_signal.h>
 
+#include "systbls.h"
+
 asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
 {
         if ((int)high < 0)
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 3a8d1844402e..646988d4c1a3 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -24,6 +24,8 @@
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 
+#include "systbls.h"
+
 /* #define DEBUG_UNIMP_SYSCALL */
 
 /* XXX Make this per-binary type, this way we can detect the type of
@@ -68,7 +70,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way unix traditionally does this, though.
  */
-asmlinkage int sparc_pipe(struct pt_regs *regs)
+asmlinkage long sparc_pipe(struct pt_regs *regs)
 {
         int fd[2];
         int error;
@@ -93,7 +95,7 @@ int sparc_mmap_check(unsigned long addr, unsigned long len)
 
 /* Linux version of mmap */
 
-asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
         unsigned long prot, unsigned long flags, unsigned long fd,
         unsigned long pgoff)
 {
@@ -103,7 +105,7 @@ asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
                               pgoff >> (PAGE_SHIFT - 12));
 }
 
-asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
+asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
         unsigned long prot, unsigned long flags, unsigned long fd,
         unsigned long off)
 {
@@ -197,7 +199,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig,
         return ret;
 }
 
-asmlinkage int sys_getdomainname(char __user *name, int len)
+asmlinkage long sys_getdomainname(char __user *name, int len)
 {
         int nlen, err;
         
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index beb0b5a5f21f..c85403d0496c 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -31,6 +31,7 @@
 #include <asm/unistd.h>
 
 #include "entry.h"
+#include "kernel.h"
 #include "systbls.h"
 
 /* #define DEBUG_UNIMP_SYSCALL */
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 26e6dd72e92a..2dab8236d490 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -1,41 +1,103 @@
 #ifndef _SYSTBLS_H
 #define _SYSTBLS_H
 
+#include <linux/signal.h>
 #include <linux/kernel.h>
+#include <linux/compat.h>
 #include <linux/types.h>
-#include <linux/signal.h>
+
 #include <asm/utrap.h>
 
-extern asmlinkage unsigned long sys_getpagesize(void);
-extern asmlinkage long sparc_pipe(struct pt_regs *regs);
-extern asmlinkage long sys_sparc_ipc(unsigned int call, int first,
-                               unsigned long second,
-                               unsigned long third,
-                               void __user *ptr, long fifth);
-extern asmlinkage long sparc64_personality(unsigned long personality);
-extern asmlinkage long sys64_munmap(unsigned long addr, size_t len);
-extern asmlinkage unsigned long sys64_mremap(unsigned long addr,
-                                             unsigned long old_len,
-                                             unsigned long new_len,
-                                             unsigned long flags,
-                                             unsigned long new_addr);
-extern asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs);
-extern asmlinkage long sys_getdomainname(char __user *name, int len);
-extern asmlinkage long sys_utrap_install(utrap_entry_t type,
-                                         utrap_handler_t new_p,
-                                         utrap_handler_t new_d,
-                                         utrap_handler_t __user *old_p,
-                                         utrap_handler_t __user *old_d);
-extern asmlinkage long sparc_memory_ordering(unsigned long model,
-                                             struct pt_regs *regs);
-extern asmlinkage long sys_rt_sigaction(int sig,
-                                        const struct sigaction __user *act,
-                                        struct sigaction __user *oact,
-                                        void __user *restorer,
-                                        size_t sigsetsize);
+asmlinkage unsigned long sys_getpagesize(void);
+asmlinkage long sparc_pipe(struct pt_regs *regs);
+asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs);
+asmlinkage long sys_getdomainname(char __user *name, int len);
+void do_rt_sigreturn(struct pt_regs *regs);
+asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
+                         unsigned long prot, unsigned long flags,
+                         unsigned long fd, unsigned long off);
+asmlinkage void sparc_breakpoint(struct pt_regs *regs);
+
+#ifdef CONFIG_SPARC32
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+                          unsigned long prot, unsigned long flags,
+                          unsigned long fd, unsigned long pgoff);
+long sparc_remap_file_pages(unsigned long start, unsigned long size,
+                            unsigned long prot, unsigned long pgoff,
+                            unsigned long flags);
 
-extern asmlinkage void sparc64_set_context(struct pt_regs *regs);
-extern asmlinkage void sparc64_get_context(struct pt_regs *regs);
-extern void do_rt_sigreturn(struct pt_regs *regs);
+#endif /* CONFIG_SPARC32 */
 
+#ifdef CONFIG_SPARC64
+asmlinkage long sys_sparc_ipc(unsigned int call, int first,
+                              unsigned long second,
+                              unsigned long third,
+                              void __user *ptr, long fifth);
+asmlinkage long sparc64_personality(unsigned long personality);
+asmlinkage long sys64_munmap(unsigned long addr, size_t len);
+asmlinkage unsigned long sys64_mremap(unsigned long addr,
+                                      unsigned long old_len,
+                                      unsigned long new_len,
+                                      unsigned long flags,
+                                      unsigned long new_addr);
+asmlinkage long sys_utrap_install(utrap_entry_t type,
+                                  utrap_handler_t new_p,
+                                  utrap_handler_t new_d,
+                                  utrap_handler_t __user *old_p,
+                                  utrap_handler_t __user *old_d);
+asmlinkage long sparc_memory_ordering(unsigned long model,
+                                      struct pt_regs *regs);
+asmlinkage void sparc64_set_context(struct pt_regs *regs);
+asmlinkage void sparc64_get_context(struct pt_regs *regs);
+asmlinkage long sys32_truncate64(const char __user * path,
+                                 unsigned long high,
+                                 unsigned long low);
+asmlinkage long sys32_ftruncate64(unsigned int fd,
+                                  unsigned long high,
+                                  unsigned long low);
+struct compat_stat64;
+asmlinkage long compat_sys_stat64(const char __user * filename,
+                                  struct compat_stat64 __user *statbuf);
+asmlinkage long compat_sys_lstat64(const char __user * filename,
+                                   struct compat_stat64 __user *statbuf);
+asmlinkage long compat_sys_fstat64(unsigned int fd,
+                                   struct compat_stat64 __user * statbuf);
+asmlinkage long compat_sys_fstatat64(unsigned int dfd,
+                                     const char __user *filename,
+                                     struct compat_stat64 __user * statbuf, int flag);
+asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
+                                        char __user *ubuf,
+                                        compat_size_t count,
+                                        unsigned long poshi,
+                                        unsigned long poslo);
+asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
+                                         char __user *ubuf,
+                                         compat_size_t count,
+                                         unsigned long poshi,
+                                         unsigned long poslo);
+asmlinkage long compat_sys_readahead(int fd,
+                                     unsigned long offhi,
+                                     unsigned long offlo,
+                                     compat_size_t count);
+long compat_sys_fadvise64(int fd,
+                          unsigned long offhi,
+                          unsigned long offlo,
+                          compat_size_t len, int advice);
+long compat_sys_fadvise64_64(int fd,
+                             unsigned long offhi, unsigned long offlo,
+                             unsigned long lenhi, unsigned long lenlo,
+                             int advice);
+long sys32_sync_file_range(unsigned int fd,
+                           unsigned long off_high, unsigned long off_low,
+                           unsigned long nb_high, unsigned long nb_low,
+                           unsigned int flags);
+asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
+                                     u32 lenhi, u32 lenlo);
+asmlinkage long compat_sys_fstat64(unsigned int fd,
+                                   struct compat_stat64 __user * statbuf);
+asmlinkage long compat_sys_fstatat64(unsigned int dfd,
+                                     const char __user *filename,
+                                     struct compat_stat64 __user * statbuf,
+                                     int flag);
+#endif /* CONFIG_SPARC64 */
 #endif /* _SYSTBLS_H */
diff --git a/arch/sparc/kernel/tadpole.c b/arch/sparc/kernel/tadpole.c
deleted file mode 100644
index 9aba8bd5a78b..000000000000
--- a/arch/sparc/kernel/tadpole.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/* tadpole.c: Probing for the tadpole clock stopping h/w at boot time.
- *
- * Copyright (C) 1996 David Redman (djhr@tadpole.co.uk)
- */
-
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-
-#include <asm/asi.h>
-#include <asm/oplib.h>
-#include <asm/io.h>
-
-#define MACIO_SCSI_CSR_ADDR     0x78400000
-#define MACIO_EN_DMA            0x00000200
-#define CLOCK_INIT_DONE         1
-
-static int clk_state;
-static volatile unsigned char *clk_ctrl;
-void (*cpu_pwr_save)(void);
-
-static inline unsigned int ldphys(unsigned int addr)
-{
-        unsigned long data;
-    
-        __asm__ __volatile__("\n\tlda [%1] %2, %0\n\t" : 
-                             "=r" (data) :
-                             "r" (addr), "i" (ASI_M_BYPASS));
-        return data;
-}
-
-static void clk_init(void)
-{
-        __asm__ __volatile__("mov 0x6c, %%g1\n\t"
-                             "mov 0x4c, %%g2\n\t"
-                             "mov 0xdf, %%g3\n\t"
-                             "stb %%g1, [%0+3]\n\t"
-                             "stb %%g2, [%0+3]\n\t"
-                             "stb %%g3, [%0+3]\n\t" : :
-                             "r" (clk_ctrl) :
-                             "g1", "g2", "g3");
-}
-
-static void clk_slow(void)
-{
-        __asm__ __volatile__("mov 0xcc, %%g2\n\t"
-                             "mov 0x4c, %%g3\n\t"
-                             "mov 0xcf, %%g4\n\t"
-                             "mov 0xdf, %%g5\n\t"
-                             "stb %%g2, [%0+3]\n\t"
-                             "stb %%g3, [%0+3]\n\t"
-                             "stb %%g4, [%0+3]\n\t"
-                             "stb %%g5, [%0+3]\n\t" : :
-                             "r" (clk_ctrl) :
-                             "g2", "g3", "g4", "g5");
-}
-
-/*
- * Tadpole is guaranteed to be UP, using local_irq_save.
- */
-static void tsu_clockstop(void)
-{
-        unsigned int mcsr;
-        unsigned long flags;
-
-        if (!clk_ctrl)
-                return;
-        if (!(clk_state & CLOCK_INIT_DONE)) {
-                local_irq_save(flags);
-                clk_init();
-                clk_state |= CLOCK_INIT_DONE;       /* all done */
-                local_irq_restore(flags);
-                return;
-        }
-        if (!(clk_ctrl[2] & 1))
-                return;               /* no speed up yet */
-
-        local_irq_save(flags);
-
-        /* if SCSI DMA in progress, don't slow clock */
-        mcsr = ldphys(MACIO_SCSI_CSR_ADDR);
-        if ((mcsr&MACIO_EN_DMA) != 0) {
-                local_irq_restore(flags);
-                return;
-        }
-        /* TODO... the minimum clock setting ought to increase the
-         * memory refresh interval..
-         */
-        clk_slow();
-        local_irq_restore(flags);
-}
-
-static void swift_clockstop(void)
-{
-        if (!clk_ctrl)
-                return;
-        clk_ctrl[0] = 0;
-}
-
-void __init clock_stop_probe(void)
-{
-        phandle node, clk_nd;
-        char name[20];
-    
-        prom_getstring(prom_root_node, "name", name, sizeof(name));
-        if (strncmp(name, "Tadpole", 7))
-                return;
-        node = prom_getchild(prom_root_node);
-        node = prom_searchsiblings(node, "obio");
-        node = prom_getchild(node);
-        clk_nd = prom_searchsiblings(node, "clk-ctrl");
-        if (!clk_nd)
-                return;
-        printk("Clock Stopping h/w detected... ");
-        clk_ctrl = (char *) prom_getint(clk_nd, "address");
-        clk_state = 0;
-        if (name[10] == '\0') {
-                cpu_pwr_save = tsu_clockstop;
-                printk("enabled (S3)\n");
-        } else if ((name[10] == 'X') || (name[10] == 'G')) {
-                cpu_pwr_save = swift_clockstop;
-                printk("enabled (%s)\n",name+7);
-        } else
-                printk("disabled %s\n",name+7);
-}
diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c
index c4c27b0f9063..5923d1e4e7c9 100644
--- a/arch/sparc/kernel/time_32.c
+++ b/arch/sparc/kernel/time_32.c
@@ -36,6 +36,7 @@
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 
+#include <asm/mc146818rtc.h>
 #include <asm/oplib.h>
 #include <asm/timex.h>
 #include <asm/timer.h>
@@ -47,6 +48,7 @@
 #include <asm/irq_regs.h>
 #include <asm/setup.h>
 
+#include "kernel.h"
 #include "irq.h"
 
 static __cacheline_aligned_in_smp DEFINE_SEQLOCK(timer_cs_lock);
@@ -83,7 +85,7 @@ unsigned long profile_pc(struct pt_regs *regs)
 
 EXPORT_SYMBOL(profile_pc);
 
-__volatile__ unsigned int *master_l10_counter;
+volatile u32 __iomem *master_l10_counter;
 
 int update_persistent_clock(struct timespec now)
 {
@@ -143,9 +145,9 @@ static __init void setup_timer_ce(void)
 
 static unsigned int sbus_cycles_offset(void)
 {
-        unsigned int val, offset;
+        u32 val, offset;
 
-        val = *master_l10_counter;
+        val = sbus_readl(master_l10_counter);
         offset = (val >> TIMER_VALUE_SHIFT) & TIMER_VALUE_MASK;
 
         /* Limit hit? */
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 662982946a89..6fd386c5232a 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -44,7 +44,7 @@ static void instruction_dump(unsigned long *pc)
 #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t")
 #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t")
 
-void die_if_kernel(char *str, struct pt_regs *regs)
+void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
 {
         static int die_counter;
         int count = 0;
@@ -219,8 +219,6 @@ static unsigned long fake_fsr;
 static unsigned long fake_queue[32] __attribute__ ((aligned (8)));
 static unsigned long fake_depth;
 
-extern int do_mathemu(struct pt_regs *, struct task_struct *);
-
 void do_fpe_trap(struct pt_regs *regs, unsigned long pc, unsigned long npc,
                  unsigned long psr)
 {
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 4ced92f05358..fb6640ec8557 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -43,8 +43,10 @@
 #include <asm/prom.h>
 #include <asm/memctrl.h>
 #include <asm/cacheflush.h>
+#include <asm/setup.h>
 
 #include "entry.h"
+#include "kernel.h"
 #include "kstack.h"
 
 /* When an irrecoverable trap occurs at tl > 0, the trap entry
@@ -2209,8 +2211,6 @@ out:
         exception_exit(prev_state);
 }
 
-extern int do_mathemu(struct pt_regs *, struct fpustate *, bool);
-
 void do_fpother(struct pt_regs *regs)
 {
         enum ctx_state prev_state = exception_enter();
@@ -2383,7 +2383,7 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
         return (struct reg_window *) (fp + STACK_BIAS);
 }
 
-void die_if_kernel(char *str, struct pt_regs *regs)
+void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
 {
         static int die_counter;
         int count = 0;
@@ -2433,9 +2433,6 @@ EXPORT_SYMBOL(die_if_kernel);
 #define VIS_OPCODE_MASK ((0x3 << 30) | (0x3f << 19))
 #define VIS_OPCODE_VAL  ((0x2 << 30) | (0x36 << 19))
 
-extern int handle_popc(u32 insn, struct pt_regs *regs);
-extern int handle_ldf_stq(u32 insn, struct pt_regs *regs);
-
 void do_illegal_instruction(struct pt_regs *regs)
 {
         enum ctx_state prev_state = exception_enter();
@@ -2486,8 +2483,6 @@ out:
         exception_exit(prev_state);
 }
 
-extern void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn);
-
 void mem_address_unaligned(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr)
 {
         enum ctx_state prev_state = exception_enter();
diff --git a/arch/sparc/kernel/unaligned_32.c b/arch/sparc/kernel/unaligned_32.c
index c0ec89786193..c5c61b3c6b56 100644
--- a/arch/sparc/kernel/unaligned_32.c
+++ b/arch/sparc/kernel/unaligned_32.c
@@ -16,6 +16,10 @@
 #include <linux/smp.h>
 #include <linux/perf_event.h>
 
+#include <asm/setup.h>
+
+#include "kernel.h"
+
 enum direction {
         load,    /* ld, ldd, ldh, ldsh */
         store,   /* st, std, sth, stsh */
diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index 35ab8b60d256..62098a89bbbf 100644
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -24,8 +24,10 @@
 #include <linux/context_tracking.h>
 #include <asm/fpumacro.h>
 #include <asm/cacheflush.h>
+#include <asm/setup.h>
 
 #include "entry.h"
+#include "kernel.h"
 
 enum direction {
         load,    /* ld, ldd, ldh, ldsh */
diff --git a/arch/sparc/kernel/windows.c b/arch/sparc/kernel/windows.c
index 3107381e576d..87bab0a3857a 100644
--- a/arch/sparc/kernel/windows.c
+++ b/arch/sparc/kernel/windows.c
@@ -10,8 +10,11 @@
 #include <linux/mm.h>
 #include <linux/smp.h>
 
+#include <asm/cacheflush.h>
 #include <asm/uaccess.h>
 
+#include "kernel.h"
+
 /* Do save's until all user register windows are out of the cpu. */
 void flush_user_windows(void)
 {
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index dbe119b63b48..3269b0234093 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -41,7 +41,7 @@ lib-$(CONFIG_SPARC64) += GENpatch.o GENpage.o GENbzero.o
 lib-$(CONFIG_SPARC64) += copy_in_user.o user_fixup.o memmove.o
 lib-$(CONFIG_SPARC64) += mcount.o ipcsum.o xor.o hweight.o ffs.o
 
-obj-y                 += iomap.o
+obj-$(CONFIG_SPARC64) += iomap.o
 obj-$(CONFIG_SPARC32) += atomic32.o ucmpdi2.o
 obj-y                 += ksyms.o
 obj-$(CONFIG_SPARC64) += PeeCeeI.o
diff --git a/arch/sparc/math-emu/sfp-util_32.h b/arch/sparc/math-emu/sfp-util_32.h
index d1b2aff3c259..bb587d5f3d9d 100644
--- a/arch/sparc/math-emu/sfp-util_32.h
+++ b/arch/sparc/math-emu/sfp-util_32.h
@@ -4,20 +4,20 @@
 #include <asm/byteorder.h>
 
 #define add_ssaaaa(sh, sl, ah, al, bh, bl)                              \
-  __asm__ ("addcc %r4,%5,%1\n\t"                                                \
+  __asm__ ("addcc %r4,%5,%1\n\t"                                        \
            "addx %r2,%3,%0\n"                                           \
-           : "=r" ((USItype)(sh)),                                      \
-             "=&r" ((USItype)(sl))                                      \
+           : "=r" (sh),                                                 \
+             "=&r" (sl)                                                 \
            : "%rJ" ((USItype)(ah)),                                     \
              "rI" ((USItype)(bh)),                                      \
              "%rJ" ((USItype)(al)),                                     \
              "rI" ((USItype)(bl))                                       \
            : "cc")
 #define sub_ddmmss(sh, sl, ah, al, bh, bl)                              \
-  __asm__ ("subcc %r4,%5,%1\n\t"                                                \
+  __asm__ ("subcc %r4,%5,%1\n\t"                                        \
            "subx %r2,%3,%0\n"                                           \
-           : "=r" ((USItype)(sh)),                                      \
-             "=&r" ((USItype)(sl))                                      \
+           : "=r" (sh),                                                 \
+             "=&r" (sl)                                                 \
            : "rJ" ((USItype)(ah)),                                      \
              "rI" ((USItype)(bh)),                                      \
              "rJ" ((USItype)(al)),                                      \
@@ -65,8 +65,8 @@
         "mulscc %%g1,0,%%g1\n\t"                                        \
         "add    %%g1,%%g2,%0\n\t"                                       \
         "rd     %%y,%1\n"                                               \
-           : "=r" ((USItype)(w1)),                                      \
-             "=r" ((USItype)(w0))                                       \
+           : "=r" (w1),                                                 \
+             "=r" (w0)                                                  \
            : "%rI" ((USItype)(u)),                                      \
              "r" ((USItype)(v))                                         \
            : "%g1", "%g2", "cc")
@@ -98,8 +98,8 @@
            "sub %1,%2,%1\n\t"                                           \
            "3:  xnor    %0,0,%0\n\t"                                    \
            "! End of inline udiv_qrnnd\n"                               \
-           : "=&r" ((USItype)(q)),                                      \
-             "=&r" ((USItype)(r))                                       \
+           : "=&r" (q),                                                 \
+             "=&r" (r)                                                  \
            : "r" ((USItype)(d)),                                        \
              "1" ((USItype)(n1)),                                       \
              "0" ((USItype)(n0)) : "%g1", "cc")
diff --git a/arch/sparc/math-emu/sfp-util_64.h b/arch/sparc/math-emu/sfp-util_64.h
index 425d3cf01af4..51320a861cc2 100644
--- a/arch/sparc/math-emu/sfp-util_64.h
+++ b/arch/sparc/math-emu/sfp-util_64.h
@@ -17,8 +17,8 @@
            "bcs,a,pn %%xcc, 1f\n\t"             \
            "add %0, 1, %0\n"                    \
            "1:"                                 \
-           : "=r" ((UDItype)(sh)),              \
-             "=&r" ((UDItype)(sl))              \
+           : "=r" (sh),                         \
+             "=&r" (sl)                         \
            : "r" ((UDItype)(ah)),               \
              "r" ((UDItype)(bh)),               \
              "r" ((UDItype)(al)),               \
@@ -31,8 +31,8 @@
            "bcs,a,pn %%xcc, 1f\n\t"             \
            "sub %0, 1, %0\n"                    \
            "1:"                                 \
-           : "=r" ((UDItype)(sh)),              \
-             "=&r" ((UDItype)(sl))              \
+           : "=r" (sh),                         \
+             "=&r" (sl)                         \
            : "r" ((UDItype)(ah)),               \
              "r" ((UDItype)(bh)),               \
              "r" ((UDItype)(al)),               \
@@ -64,8 +64,8 @@
                    "sllx %3,32,%3\n\t"                  \
                    "add %1,%3,%1\n\t"                   \
                    "add %5,%2,%0"                       \
-           : "=r" ((UDItype)(wh)),                      \
-             "=&r" ((UDItype)(wl)),                     \
+           : "=r" (wh),                                 \
+             "=&r" (wl),                                \
              "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
            : "r" ((UDItype)(u)),                        \
              "r" ((UDItype)(v))                         \
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index 59dbd4645725..908e8c17c902 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -26,14 +26,14 @@
 #include <asm/pgtable.h>
 #include <asm/openprom.h>
 #include <asm/oplib.h>
+#include <asm/setup.h>
 #include <asm/smp.h>
 #include <asm/traps.h>
 #include <asm/uaccess.h>
 
-int show_unhandled_signals = 1;
+#include "mm_32.h"
 
-static void unhandled_fault(unsigned long, struct task_struct *,
-                struct pt_regs *) __attribute__ ((noreturn));
+int show_unhandled_signals = 1;
 
 static void __noreturn unhandled_fault(unsigned long address,
                                        struct task_struct *tsk,
@@ -141,9 +141,6 @@ static void __do_fault_siginfo(int code, int sig, struct pt_regs *regs,
         force_sig_info (sig, &info, current);
 }
 
-extern unsigned long safe_compute_effective_address(struct pt_regs *,
-                                                    unsigned int);
-
 static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault)
 {
         unsigned int insn;
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 4ced3fc66130..587cd0565128 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -32,6 +32,7 @@
 #include <asm/lsu.h>
 #include <asm/sections.h>
 #include <asm/mmu_context.h>
+#include <asm/setup.h>
 
 int show_unhandled_signals = 1;
 
@@ -196,9 +197,6 @@ static void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
         force_sig_info(sig, &info, current);
 }
 
-extern int handle_ldf_stq(u32, struct pt_regs *);
-extern int handle_ld_nf(u32, struct pt_regs *);
-
 static unsigned int get_fault_insn(struct pt_regs *regs, unsigned int insn)
 {
         if (!insn) {
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index db6987082805..eb8287155279 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -31,10 +31,13 @@
 #include <asm/pgtable.h>
 #include <asm/vaddrs.h>
 #include <asm/pgalloc.h>        /* bug in asm-generic/tlb.h: check_pgt_cache */
+#include <asm/setup.h>
 #include <asm/tlb.h>
 #include <asm/prom.h>
 #include <asm/leon.h>
 
+#include "mm_32.h"
+
 unsigned long *sparc_valid_addr_bitmap;
 EXPORT_SYMBOL(sparc_valid_addr_bitmap);
 
@@ -63,7 +66,6 @@ void show_mem(unsigned int filter)
 }
 
 
-extern unsigned long cmdline_memory_size;
 unsigned long last_valid_pfn;
 
 unsigned long calc_highpages(void)
@@ -246,9 +248,6 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
  * init routine based upon the Sun model type on the Sparc.
  *
  */
-extern void srmmu_paging_init(void);
-extern void device_scan(void);
-
 void __init paging_init(void)
 {
         srmmu_paging_init();
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index ed3c969a5f4c..16b58ff11e65 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -47,6 +47,7 @@
 #include <asm/prom.h>
 #include <asm/mdesc.h>
 #include <asm/cpudata.h>
+#include <asm/setup.h>
 #include <asm/irq.h>
 
 #include "init_64.h"
@@ -794,11 +795,11 @@ struct node_mem_mask {
 static struct node_mem_mask node_masks[MAX_NUMNODES];
 static int num_node_masks;
 
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+
 int numa_cpu_lookup_table[NR_CPUS];
 cpumask_t numa_cpumask_lookup_table[MAX_NUMNODES];
 
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-
 struct mdesc_mblock {
         u64     base;
         u64     size;
@@ -887,17 +888,21 @@ static void __init allocate_node_data(int nid)
 
 static void init_node_masks_nonnuma(void)
 {
+#ifdef CONFIG_NEED_MULTIPLE_NODES
         int i;
+#endif
 
         numadbg("Initializing tables for non-numa.\n");
 
         node_masks[0].mask = node_masks[0].val = 0;
         num_node_masks = 1;
 
+#ifdef CONFIG_NEED_MULTIPLE_NODES
         for (i = 0; i < NR_CPUS; i++)
                 numa_cpu_lookup_table[i] = 0;
 
         cpumask_setall(&numa_cpumask_lookup_table[0]);
+#endif
 }
 
 #ifdef CONFIG_NEED_MULTIPLE_NODES
diff --git a/arch/sparc/mm/init_64.h b/arch/sparc/mm/init_64.h
index 5d3782deb403..0668b364f44d 100644
--- a/arch/sparc/mm/init_64.h
+++ b/arch/sparc/mm/init_64.h
@@ -21,7 +21,7 @@ extern unsigned int sparc64_highest_unlocked_tlb_ent;
 extern unsigned long sparc64_kern_pri_context;
 extern unsigned long sparc64_kern_pri_nuc_bits;
 extern unsigned long sparc64_kern_sec_context;
-extern void mmu_info(struct seq_file *m);
+void mmu_info(struct seq_file *m);
 
 struct linux_prom_translation {
         unsigned long virt;
@@ -36,7 +36,7 @@ extern unsigned int prom_trans_ents;
 /* Exported for SMP bootup purposes. */
 extern unsigned long kern_locked_tte_data;
 
-extern void prom_world(int enter);
+void prom_world(int enter);
 
 #ifdef CONFIG_SPARSEMEM_VMEMMAP
 #define VMEMMAP_CHUNK_SHIFT     22
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index eb99862e9654..f311bf219016 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -25,6 +25,8 @@
 #include <asm/dma.h>
 #include <asm/oplib.h>
 
+#include "mm_32.h"
+
 /* #define IOUNIT_DEBUG */
 #ifdef IOUNIT_DEBUG
 #define IOD(x) printk(x)
@@ -38,7 +40,8 @@
 static void __init iounit_iommu_init(struct platform_device *op)
 {
         struct iounit_struct *iounit;
-        iopte_t *xpt, *xptend;
+        iopte_t __iomem *xpt;
+        iopte_t __iomem *xptend;
 
         iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC);
         if (!iounit) {
@@ -62,10 +65,10 @@ static void __init iounit_iommu_init(struct platform_device *op)
         op->dev.archdata.iommu = iounit;
         iounit->page_table = xpt;
         spin_lock_init(&iounit->lock);
-        
-        for (xptend = iounit->page_table + (16 * PAGE_SIZE) / sizeof(iopte_t);
-             xpt < xptend;)
-                iopte_val(*xpt++) = 0;
+
+        xptend = iounit->page_table + (16 * PAGE_SIZE) / sizeof(iopte_t);
+        for (; xpt < xptend; xpt++)
+                sbus_writel(0, xpt);
 }
 
 static int __init iounit_init(void)
@@ -130,7 +133,7 @@ nexti:	scan = find_next_zero_bit(iounit->bmap, limit, scan);
         vaddr = IOUNIT_DMA_BASE + (scan << PAGE_SHIFT) + (vaddr & ~PAGE_MASK);
         for (k = 0; k < npages; k++, iopte = __iopte(iopte_val(iopte) + 0x100), scan++) {
                 set_bit(scan, iounit->bmap);
-                iounit->page_table[scan] = iopte;
+                sbus_writel(iopte, &iounit->page_table[scan]);
         }
         IOD(("%08lx\n", vaddr));
         return vaddr;
@@ -202,7 +205,7 @@ static int iounit_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned lon
         struct iounit_struct *iounit = dev->archdata.iommu;
         unsigned long page, end;
         pgprot_t dvma_prot;
-        iopte_t *iopte;
+        iopte_t __iomem *iopte;
 
         *pba = addr;
 
@@ -224,8 +227,8 @@ static int iounit_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned lon
                         
                         i = ((addr - IOUNIT_DMA_BASE) >> PAGE_SHIFT);
 
-                        iopte = (iopte_t *)(iounit->page_table + i);
-                        *iopte = MKIOPTE(__pa(page));
+                        iopte = iounit->page_table + i;
+                        sbus_writel(MKIOPTE(__pa(page)), iopte);
                 }
                 addr += PAGE_SIZE;
                 va += PAGE_SIZE;
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 28f96f27c768..491511d37e37 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -27,6 +27,8 @@
 #include <asm/iommu.h>
 #include <asm/dma.h>
 
+#include "mm_32.h"
+
 /*
  * This can be sized dynamically, but we will do this
  * only when we have a guidance about actual I/O pressures.
@@ -37,9 +39,6 @@
 #define IOMMU_NPTES     (IOMMU_WINSIZE/PAGE_SIZE)       /* 64K PTEs, 256KB */
 #define IOMMU_ORDER     6                               /* 4096 * (1<<6) */
 
-/* srmmu.c */
-extern int viking_mxcc_present;
-extern int flush_page_for_dma_global;
 static int viking_flush;
 /* viking.S */
 extern void viking_flush_page(unsigned long page);
@@ -59,6 +58,8 @@ static void __init sbus_iommu_init(struct platform_device *op)
         struct iommu_struct *iommu;
         unsigned int impl, vers;
         unsigned long *bitmap;
+        unsigned long control;
+        unsigned long base;
         unsigned long tmp;
 
         iommu = kmalloc(sizeof(struct iommu_struct), GFP_KERNEL);
@@ -73,12 +74,14 @@ static void __init sbus_iommu_init(struct platform_device *op)
                 prom_printf("Cannot map IOMMU registers\n");
                 prom_halt();
         }
-        impl = (iommu->regs->control & IOMMU_CTRL_IMPL) >> 28;
-        vers = (iommu->regs->control & IOMMU_CTRL_VERS) >> 24;
-        tmp = iommu->regs->control;
-        tmp &= ~(IOMMU_CTRL_RNGE);
-        tmp |= (IOMMU_RNGE_256MB | IOMMU_CTRL_ENAB);
-        iommu->regs->control = tmp;
+
+        control = sbus_readl(&iommu->regs->control);
+        impl = (control & IOMMU_CTRL_IMPL) >> 28;
+        vers = (control & IOMMU_CTRL_VERS) >> 24;
+        control &= ~(IOMMU_CTRL_RNGE);
+        control |= (IOMMU_RNGE_256MB | IOMMU_CTRL_ENAB);
+        sbus_writel(control, &iommu->regs->control);
+
         iommu_invalidate(iommu->regs);
         iommu->start = IOMMU_START;
         iommu->end = 0xffffffff;
@@ -100,7 +103,9 @@ static void __init sbus_iommu_init(struct platform_device *op)
         memset(iommu->page_table, 0, IOMMU_NPTES*sizeof(iopte_t));
         flush_cache_all();
         flush_tlb_all();
-        iommu->regs->base = __pa((unsigned long) iommu->page_table) >> 4;
+
+        base = __pa((unsigned long)iommu->page_table) >> 4;
+        sbus_writel(base, &iommu->regs->base);
         iommu_invalidate(iommu->regs);
 
         bitmap = kmalloc(IOMMU_NPTES>>3, GFP_KERNEL);
diff --git a/arch/sparc/mm/leon_mm.c b/arch/sparc/mm/leon_mm.c
index 5bed085a2c17..3b17b6f7895a 100644
--- a/arch/sparc/mm/leon_mm.c
+++ b/arch/sparc/mm/leon_mm.c
@@ -15,10 +15,10 @@
 #include <asm/leon.h>
 #include <asm/tlbflush.h>
 
-#include "srmmu.h"
+#include "mm_32.h"
 
 int leon_flush_during_switch = 1;
-int srmmu_swprobe_trace;
+static int srmmu_swprobe_trace;
 
 static inline unsigned long leon_get_ctable_ptr(void)
 {
diff --git a/arch/sparc/mm/mm_32.h b/arch/sparc/mm/mm_32.h
new file mode 100644
index 000000000000..a6c27ca9a721
--- /dev/null
+++ b/arch/sparc/mm/mm_32.h
@@ -0,0 +1,24 @@
+/* fault_32.c - visible as they are called from assembler */
+asmlinkage int lookup_fault(unsigned long pc, unsigned long ret_pc,
+                            unsigned long address);
+asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
+                               unsigned long address);
+
+void window_overflow_fault(void);
+void window_underflow_fault(unsigned long sp);
+void window_ret_fault(struct pt_regs *regs);
+
+/* srmmu.c */
+extern char *srmmu_name;
+extern int viking_mxcc_present;
+extern int flush_page_for_dma_global;
+
+extern void (*poke_srmmu)(void);
+
+void __init srmmu_paging_init(void);
+
+/* iommu.c */
+void ld_mmu_iommu(void);
+
+/* io-unit.c */
+void ld_mmu_iounit(void);
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index cfbe53c17b0d..be65f035d18a 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -49,7 +49,7 @@
 #include <asm/mxcc.h>
 #include <asm/ross.h>
 
-#include "srmmu.h"
+#include "mm_32.h"
 
 enum mbus_module srmmu_modtype;
 static unsigned int hwbug_bitmask;
@@ -100,7 +100,6 @@ static unsigned long srmmu_nocache_end;
 #define SRMMU_NOCACHE_ALIGN_MAX (sizeof(ctxd_t)*SRMMU_MAX_CONTEXTS)
 
 void *srmmu_nocache_pool;
-void *srmmu_nocache_bitmap;
 static struct bit_map srmmu_nocache_map;
 
 static inline int srmmu_pmd_none(pmd_t pmd)
@@ -173,7 +172,7 @@ static void *__srmmu_get_nocache(int size, int align)
                 printk(KERN_ERR "srmmu: out of nocache %d: %d/%d\n",
                        size, (int) srmmu_nocache_size,
                        srmmu_nocache_map.used << SRMMU_NOCACHE_BITMAP_SHIFT);
-                return 0;
+                return NULL;
         }
 
         addr = SRMMU_NOCACHE_VADDR + (offset << SRMMU_NOCACHE_BITMAP_SHIFT);
@@ -269,6 +268,7 @@ static void __init srmmu_nocache_calcsize(void)
 
 static void __init srmmu_nocache_init(void)
 {
+        void *srmmu_nocache_bitmap;
         unsigned int bitmap_bits;
         pgd_t *pgd;
         pmd_t *pmd;
@@ -728,7 +728,7 @@ static inline unsigned long srmmu_probe(unsigned long vaddr)
                                      "=r" (retval) :
                                      "r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE));
         } else {
-                retval = leon_swprobe(vaddr, 0);
+                retval = leon_swprobe(vaddr, NULL);
         }
         return retval;
 }
@@ -865,8 +865,6 @@ static void __init map_kernel(void)
 
 void (*poke_srmmu)(void) = NULL;
 
-extern unsigned long bootmem_init(unsigned long *pages_avail);
-
 void __init srmmu_paging_init(void)
 {
         int i;
@@ -1771,9 +1769,6 @@ static struct sparc32_cachetlb_ops smp_cachetlb_ops = {
 /* Load up routines and constants for sun4m and sun4d mmu */
 void __init load_mmu(void)
 {
-        extern void ld_mmu_iommu(void);
-        extern void ld_mmu_iounit(void);
-
         /* Functions */
         get_srmmu_type();
 
diff --git a/arch/sparc/mm/srmmu.h b/arch/sparc/mm/srmmu.h
deleted file mode 100644
index 5703274ccf89..000000000000
--- a/arch/sparc/mm/srmmu.h
+++ /dev/null
@@ -1,4 +0,0 @@
-/* srmmu.c */
-extern char *srmmu_name;
-
-extern void (*poke_srmmu)(void);
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index fe19b81acc09..a06576683c38 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -9,6 +9,7 @@
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/mmu_context.h>
+#include <asm/setup.h>
 #include <asm/tsb.h>
 #include <asm/tlb.h>
 #include <asm/oplib.h>
diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c
index f178b9dcc7b7..53a696d3eb3b 100644
--- a/arch/sparc/prom/misc_64.c
+++ b/arch/sparc/prom/misc_64.c
@@ -81,11 +81,6 @@ void prom_feval(const char *fstring)
 }
 EXPORT_SYMBOL(prom_feval);
 
-#ifdef CONFIG_SMP
-extern void smp_capture(void);
-extern void smp_release(void);
-#endif
-
 /* Drop into the prom, with the chance to continue with the 'go'
  * prom command.
  */
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index aafad6fa1667..928237a7b9ca 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -51,9 +51,6 @@ config ARCH_HAS_ILOG2_U32
 config ARCH_HAS_ILOG2_U64
         bool
 
-config ARCH_HAS_CPUFREQ
-        bool
-
 config GENERIC_HWEIGHT
         def_bool y
 
@@ -87,7 +84,6 @@ config ARCH_PUV3
         select GENERIC_CLOCKEVENTS
         select HAVE_CLK
         select ARCH_REQUIRE_GPIOLIB
-        select ARCH_HAS_CPUFREQ
 
 # CONFIGs for ARCH_PUV3
 
@@ -198,9 +194,7 @@ menu "Power management options"
 
 source "kernel/power/Kconfig"
 
-if ARCH_HAS_CPUFREQ
 source "drivers/cpufreq/Kconfig"
-endif
 
 config ARCH_SUSPEND_POSSIBLE
         def_bool y if !ARCH_FPGA
diff --git a/arch/unicore32/include/asm/io.h b/arch/unicore32/include/asm/io.h
index 39decb6e6f57..cb1d8fd2b16b 100644
--- a/arch/unicore32/include/asm/io.h
+++ b/arch/unicore32/include/asm/io.h
@@ -39,10 +39,37 @@ extern void __uc32_iounmap(volatile void __iomem *addr);
 #define ioremap_nocache(cookie, size)   __uc32_ioremap(cookie, size)
 #define iounmap(cookie)                 __uc32_iounmap(cookie)
 
+#define readb_relaxed readb
+#define readw_relaxed readw
+#define readl_relaxed readl
+
 #define HAVE_ARCH_PIO_SIZE
 #define PIO_OFFSET              (unsigned int)(PCI_IOBASE)
 #define PIO_MASK                (unsigned int)(IO_SPACE_LIMIT)
 #define PIO_RESERVED            (PIO_OFFSET + PIO_MASK + 1)
 
+#ifdef CONFIG_STRICT_DEVMEM
+
+#include <linux/ioport.h>
+#include <linux/mm.h>
+
+/*
+ * devmem_is_allowed() checks to see if /dev/mem access to a certain
+ * address is valid. The argument is a physical page number.
+ * We mimic x86 here by disallowing access to system RAM as well as
+ * device-exclusive MMIO regions. This effectively disable read()/write()
+ * on /dev/mem.
+ */
+static inline int devmem_is_allowed(unsigned long pfn)
+{
+        if (iomem_is_exclusive(pfn << PAGE_SHIFT))
+                return 0;
+        if (!page_is_ram(pfn))
+                return 1;
+        return 0;
+}
+
+#endif /* CONFIG_STRICT_DEVMEM */
+
 #endif  /* __KERNEL__ */
 #endif  /* __UNICORE_IO_H__ */
diff --git a/arch/unicore32/include/asm/pgtable.h b/arch/unicore32/include/asm/pgtable.h
index 233c25880df4..ed6f7d000fba 100644
--- a/arch/unicore32/include/asm/pgtable.h
+++ b/arch/unicore32/include/asm/pgtable.h
@@ -87,16 +87,16 @@ extern pgprot_t pgprot_kernel;
 
 #define PAGE_NONE               pgprot_user
 #define PAGE_SHARED             __pgprot(pgprot_val(pgprot_user | PTE_READ \
-                                                                | PTE_WRITE)
+                                                                | PTE_WRITE))
 #define PAGE_SHARED_EXEC        __pgprot(pgprot_val(pgprot_user | PTE_READ \
                                                                 | PTE_WRITE \
-                                                                | PTE_EXEC)
+                                                                | PTE_EXEC))
 #define PAGE_COPY               __pgprot(pgprot_val(pgprot_user | PTE_READ)
 #define PAGE_COPY_EXEC          __pgprot(pgprot_val(pgprot_user | PTE_READ \
-                                                                | PTE_EXEC)
-#define PAGE_READONLY           __pgprot(pgprot_val(pgprot_user | PTE_READ)
+                                                                | PTE_EXEC))
+#define PAGE_READONLY           __pgprot(pgprot_val(pgprot_user | PTE_READ))
 #define PAGE_READONLY_EXEC      __pgprot(pgprot_val(pgprot_user | PTE_READ \
-                                                                | PTE_EXEC)
+                                                                | PTE_EXEC))
 #define PAGE_KERNEL             pgprot_kernel
 #define PAGE_KERNEL_EXEC        __pgprot(pgprot_val(pgprot_kernel | PTE_EXEC))
 
diff --git a/arch/unicore32/include/asm/ptrace.h b/arch/unicore32/include/asm/ptrace.h
index 9df53d991c78..02bf5a415bf5 100644
--- a/arch/unicore32/include/asm/ptrace.h
+++ b/arch/unicore32/include/asm/ptrace.h
@@ -55,6 +55,7 @@ static inline int valid_user_regs(struct pt_regs *regs)
 
 #define instruction_pointer(regs)       ((regs)->UCreg_pc)
 #define user_stack_pointer(regs)        ((regs)->UCreg_sp)
+#define profile_pc(regs)                instruction_pointer(regs)
 
 #endif /* __ASSEMBLY__ */
 #endif
diff --git a/arch/unicore32/kernel/clock.c b/arch/unicore32/kernel/clock.c
index 18d4563e6fa5..b1ca775f6f6e 100644
--- a/arch/unicore32/kernel/clock.c
+++ b/arch/unicore32/kernel/clock.c
@@ -179,7 +179,7 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
         }
 #ifdef CONFIG_CPU_FREQ
         if (clk == &clk_mclk_clk) {
-                u32 pll_rate, divstatus = PM_DIVSTATUS;
+                u32 pll_rate, divstatus = readl(PM_DIVSTATUS);
                 int ret, i;
 
                 /* lookup mclk_clk_table */
@@ -201,10 +201,10 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
                                 / (((divstatus & 0x0000f000) >> 12) + 1);
 
                 /* set pll sys cfg reg. */
-                PM_PLLSYSCFG = pll_rate;
+                writel(pll_rate, PM_PLLSYSCFG);
 
-                PM_PMCR = PM_PMCR_CFBSYS;
-                while ((PM_PLLDFCDONE & PM_PLLDFCDONE_SYSDFC)
+                writel(PM_PMCR_CFBSYS, PM_PMCR);
+                while ((readl(PM_PLLDFCDONE) & PM_PLLDFCDONE_SYSDFC)
                                 != PM_PLLDFCDONE_SYSDFC)
                         udelay(100);
                         /* about 1ms */
diff --git a/arch/unicore32/kernel/ksyms.c b/arch/unicore32/kernel/ksyms.c
index d285d71cbe35..0323528a80fd 100644
--- a/arch/unicore32/kernel/ksyms.c
+++ b/arch/unicore32/kernel/ksyms.c
@@ -23,41 +23,15 @@
 
 #include "ksyms.h"
 
+EXPORT_SYMBOL(find_first_bit);
+EXPORT_SYMBOL(find_first_zero_bit);
 EXPORT_SYMBOL(find_next_zero_bit);
 EXPORT_SYMBOL(find_next_bit);
 
-EXPORT_SYMBOL(__backtrace);
-
         /* platform dependent support */
 EXPORT_SYMBOL(__udelay);
 EXPORT_SYMBOL(__const_udelay);
 
-        /* networking */
-EXPORT_SYMBOL(csum_partial);
-EXPORT_SYMBOL(csum_partial_copy_from_user);
-EXPORT_SYMBOL(csum_partial_copy_nocheck);
-EXPORT_SYMBOL(__csum_ipv6_magic);
-
-        /* io */
-#ifndef __raw_readsb
-EXPORT_SYMBOL(__raw_readsb);
-#endif
-#ifndef __raw_readsw
-EXPORT_SYMBOL(__raw_readsw);
-#endif
-#ifndef __raw_readsl
-EXPORT_SYMBOL(__raw_readsl);
-#endif
-#ifndef __raw_writesb
-EXPORT_SYMBOL(__raw_writesb);
-#endif
-#ifndef __raw_writesw
-EXPORT_SYMBOL(__raw_writesw);
-#endif
-#ifndef __raw_writesl
-EXPORT_SYMBOL(__raw_writesl);
-#endif
-
         /* string / mem functions */
 EXPORT_SYMBOL(strchr);
 EXPORT_SYMBOL(strrchr);
@@ -76,23 +50,12 @@ EXPORT_SYMBOL(__copy_from_user);
 EXPORT_SYMBOL(__copy_to_user);
 EXPORT_SYMBOL(__clear_user);
 
-EXPORT_SYMBOL(__get_user_1);
-EXPORT_SYMBOL(__get_user_2);
-EXPORT_SYMBOL(__get_user_4);
-
-EXPORT_SYMBOL(__put_user_1);
-EXPORT_SYMBOL(__put_user_2);
-EXPORT_SYMBOL(__put_user_4);
-EXPORT_SYMBOL(__put_user_8);
-
 EXPORT_SYMBOL(__ashldi3);
 EXPORT_SYMBOL(__ashrdi3);
 EXPORT_SYMBOL(__divsi3);
 EXPORT_SYMBOL(__lshrdi3);
 EXPORT_SYMBOL(__modsi3);
-EXPORT_SYMBOL(__muldi3);
 EXPORT_SYMBOL(__ucmpdi2);
 EXPORT_SYMBOL(__udivsi3);
 EXPORT_SYMBOL(__umodsi3);
-EXPORT_SYMBOL(__bswapsi2);
 
diff --git a/arch/unicore32/kernel/ksyms.h b/arch/unicore32/kernel/ksyms.h
index 185cdc712d03..31472ad9467a 100644
--- a/arch/unicore32/kernel/ksyms.h
+++ b/arch/unicore32/kernel/ksyms.h
@@ -8,8 +8,6 @@ extern void __ashrdi3(void);
 extern void __divsi3(void);
 extern void __lshrdi3(void);
 extern void __modsi3(void);
-extern void __muldi3(void);
 extern void __ucmpdi2(void);
 extern void __udivsi3(void);
 extern void __umodsi3(void);
-extern void __bswapsi2(void);
diff --git a/arch/unicore32/kernel/module.c b/arch/unicore32/kernel/module.c
index 16bd1495b934..dc41f6dfedb6 100644
--- a/arch/unicore32/kernel/module.c
+++ b/arch/unicore32/kernel/module.c
@@ -24,14 +24,9 @@
 
 void *module_alloc(unsigned long size)
 {
-        struct vm_struct *area;
-
-        size = PAGE_ALIGN(size);
-        area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
-        if (!area)
-                return NULL;
-
-        return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL_EXEC);
+        return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
+                                GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
+                                __builtin_return_address(0));
 }
 
 int
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index 778ebba80827..b008e9961465 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -60,6 +60,7 @@ void machine_halt(void)
  * Function pointers to optional machine specific functions
  */
 void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
 
 void machine_power_off(void)
 {
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index 87adbf5ebfe0..3fa317f96122 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -53,6 +53,10 @@ struct stack {
 
 static struct stack stacks[NR_CPUS];
 
+#ifdef CONFIG_VGA_CONSOLE
+struct screen_info screen_info;
+#endif
+
 char elf_platform[ELF_PLATFORM_SIZE];
 EXPORT_SYMBOL(elf_platform);
 
diff --git a/arch/unicore32/mm/alignment.c b/arch/unicore32/mm/alignment.c
index de7dc5fdd58b..24e836023e6c 100644
--- a/arch/unicore32/mm/alignment.c
+++ b/arch/unicore32/mm/alignment.c
@@ -21,6 +21,7 @@
 #include <linux/sched.h>
 #include <linux/uaccess.h>
 
+#include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 #include <asm/unaligned.h>
 
diff --git a/arch/unicore32/mm/proc-syms.c b/arch/unicore32/mm/proc-syms.c
index f30071e3665d..21c00fc85c99 100644
--- a/arch/unicore32/mm/proc-syms.c
+++ b/arch/unicore32/mm/proc-syms.c
@@ -19,5 +19,7 @@
 EXPORT_SYMBOL(cpu_dcache_clean_area);
 EXPORT_SYMBOL(cpu_set_pte);
 
+EXPORT_SYMBOL(__cpuc_coherent_kern_range);
+
 EXPORT_SYMBOL(__cpuc_dma_flush_range);
 EXPORT_SYMBOL(__cpuc_dma_clean_range);
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fcefdda5136d..a8f749ef0fdc 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1672,7 +1672,6 @@ config RELOCATABLE
 config RANDOMIZE_BASE
         bool "Randomize the address of the kernel image"
         depends on RELOCATABLE
-        depends on !HIBERNATION
         default n
         ---help---
            Randomizes the physical and virtual address at which the
diff --git a/arch/x86/boot/compressed/aslr.c b/arch/x86/boot/compressed/aslr.c
index 4dbf967da50d..fc6091abedb7 100644
--- a/arch/x86/boot/compressed/aslr.c
+++ b/arch/x86/boot/compressed/aslr.c
@@ -289,10 +289,17 @@ unsigned char *choose_kernel_location(unsigned char *input,
         unsigned long choice = (unsigned long)output;
         unsigned long random;
 
+#ifdef CONFIG_HIBERNATION
+        if (!cmdline_find_option_bool("kaslr")) {
+                debug_putstr("KASLR disabled by default...\n");
+                goto out;
+        }
+#else
         if (cmdline_find_option_bool("nokaslr")) {
-                debug_putstr("KASLR disabled...\n");
+                debug_putstr("KASLR disabled by cmdline...\n");
                 goto out;
         }
+#endif
 
         /* Record the various known unsafe memory ranges. */
         mem_avoid_init((unsigned long)input, input_size,
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index c6eb418c5627..0d0e922fafc1 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -343,6 +343,7 @@ dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
         if (poke_int3_handler(regs))
                 return;
 
+        prev_state = exception_enter();
 #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
         if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
                                 SIGTRAP) == NOTIFY_STOP)
@@ -351,9 +352,8 @@ dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
 
 #ifdef CONFIG_KPROBES
         if (kprobe_int3_handler(regs))
-                return;
+                goto exit;
 #endif
-        prev_state = exception_enter();
 
         if (notify_die(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
                         SIGTRAP) == NOTIFY_STOP)
@@ -433,6 +433,8 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
         unsigned long dr6;
         int si_code;
 
+        prev_state = exception_enter();
+
         get_debugreg(dr6, 6);
 
         /* Filter out all the reserved bits which are preset to 1 */
@@ -465,7 +467,6 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
         if (kprobe_debug_handler(regs))
                 goto exit;
 #endif
-        prev_state = exception_enter();
 
         if (notify_die(DIE_DEBUG, "debug", regs, (long)&dr6, error_code,
                                                         SIGTRAP) == NOTIFY_STOP)
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index f17b29210ac4..ffb101e45731 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1537,7 +1537,10 @@ asmlinkage __visible void __init xen_start_kernel(void)
         if (!xen_pvh_domain())
                 pv_cpu_ops = xen_cpu_ops;
 
-        x86_init.resources.memory_setup = xen_memory_setup;
+        if (xen_feature(XENFEAT_auto_translated_physmap))
+                x86_init.resources.memory_setup = xen_auto_xlated_memory_setup;
+        else
+                x86_init.resources.memory_setup = xen_memory_setup;
         x86_init.oem.arch_setup = xen_arch_setup;
         x86_init.oem.banner = xen_banner;
 
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 821a11ada590..2e555163c2fe 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -27,7 +27,6 @@
 #include <xen/interface/memory.h>
 #include <xen/interface/physdev.h>
 #include <xen/features.h>
-#include "mmu.h"
 #include "xen-ops.h"
 #include "vdso.h"
 
@@ -82,9 +81,6 @@ static void __init xen_add_extra_mem(u64 start, u64 size)
 
         memblock_reserve(start, size);
 
-        if (xen_feature(XENFEAT_auto_translated_physmap))
-                return;
-
         xen_max_p2m_pfn = PFN_DOWN(start + size);
         for (pfn = PFN_DOWN(start); pfn < xen_max_p2m_pfn; pfn++) {
                 unsigned long mfn = pfn_to_mfn(pfn);
@@ -107,7 +103,6 @@ static unsigned long __init xen_do_chunk(unsigned long start,
                 .domid        = DOMID_SELF
         };
         unsigned long len = 0;
-        int xlated_phys = xen_feature(XENFEAT_auto_translated_physmap);
         unsigned long pfn;
         int ret;
 
@@ -121,7 +116,7 @@ static unsigned long __init xen_do_chunk(unsigned long start,
                                 continue;
                         frame = mfn;
                 } else {
-                        if (!xlated_phys && mfn != INVALID_P2M_ENTRY)
+                        if (mfn != INVALID_P2M_ENTRY)
                                 continue;
                         frame = pfn;
                 }
@@ -159,13 +154,6 @@ static unsigned long __init xen_do_chunk(unsigned long start,
 static unsigned long __init xen_release_chunk(unsigned long start,
                                               unsigned long end)
 {
-        /*
-         * Xen already ballooned out the E820 non RAM regions for us
-         * and set them up properly in EPT.
-         */
-        if (xen_feature(XENFEAT_auto_translated_physmap))
-                return end - start;
-
         return xen_do_chunk(start, end, true);
 }
 
@@ -234,13 +222,7 @@ static void __init xen_set_identity_and_release_chunk(
          * (except for the ISA region which must be 1:1 mapped) to
          * release the refcounts (in Xen) on the original frames.
          */
-
-        /*
-         * PVH E820 matches the hypervisor's P2M which means we need to
-         * account for the proper values of *release and *identity.
-         */
-        for (pfn = start_pfn; !xen_feature(XENFEAT_auto_translated_physmap) &&
-             pfn <= max_pfn_mapped && pfn < end_pfn; pfn++) {
+        for (pfn = start_pfn; pfn <= max_pfn_mapped && pfn < end_pfn; pfn++) {
                 pte_t pte = __pte_ma(0);
 
                 if (pfn < PFN_UP(ISA_END_ADDRESS))
@@ -518,6 +500,35 @@ char * __init xen_memory_setup(void)
 }
 
 /*
+ * Machine specific memory setup for auto-translated guests.
+ */
+char * __init xen_auto_xlated_memory_setup(void)
+{
+        static struct e820entry map[E820MAX] __initdata;
+
+        struct xen_memory_map memmap;
+        int i;
+        int rc;
+
+        memmap.nr_entries = E820MAX;
+        set_xen_guest_handle(memmap.buffer, map);
+
+        rc = HYPERVISOR_memory_op(XENMEM_memory_map, &memmap);
+        if (rc < 0)
+                panic("No memory map (%d)\n", rc);
+
+        sanitize_e820_map(map, ARRAY_SIZE(map), &memmap.nr_entries);
+
+        for (i = 0; i < memmap.nr_entries; i++)
+                e820_add_region(map[i].addr, map[i].size, map[i].type);
+
+        memblock_reserve(__pa(xen_start_info->mfn_list),
+                         xen_start_info->pt_base - xen_start_info->mfn_list);
+
+        return "Xen";
+}
+
+/*
  * Set the bit indicating "nosegneg" library variants should be used.
  * We only need to bother in pure 32-bit mode; compat 32-bit processes
  * can have un-truncated segments, so wrapping around is allowed.
@@ -590,13 +601,7 @@ void xen_enable_syscall(void)
         }
 #endif /* CONFIG_X86_64 */
 }
-void xen_enable_nmi(void)
-{
-#ifdef CONFIG_X86_64
-        if (register_callback(CALLBACKTYPE_nmi, (char *)nmi))
-                BUG();
-#endif
-}
+
 void __init xen_pvmmu_arch_setup(void)
 {
         HYPERVISOR_vm_assist(VMASST_CMD_enable, VMASST_TYPE_4gb_segments);
@@ -611,7 +616,6 @@ void __init xen_pvmmu_arch_setup(void)
 
         xen_enable_sysenter();
         xen_enable_syscall();
-        xen_enable_nmi();
 }
 
 /* This function is not called for HVM domains */
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index c834d4b231f0..97d87659f779 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -36,6 +36,7 @@ void xen_mm_unpin_all(void);
 void xen_set_pat(u64);
 
 char * __init xen_memory_setup(void);
+char * xen_auto_xlated_memory_setup(void);
 void __init xen_arch_setup(void);
 void xen_enable_sysenter(void);
 void xen_enable_syscall(void);
diff --git a/block/blk-core.c b/block/blk-core.c
index f6f6b9af3e3f..6f8dba161bfe 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -3312,8 +3312,7 @@ int __init blk_dev_init(void)
 
         /* used for unplugging and affects IO latency/throughput - HIGHPRI */
         kblockd_workqueue = alloc_workqueue("kblockd",
-                                            WQ_MEM_RECLAIM | WQ_HIGHPRI |
-                                            WQ_POWER_EFFICIENT, 0);
+                                            WQ_MEM_RECLAIM | WQ_HIGHPRI, 0);
         if (!kblockd_workqueue)
                 panic("Failed to create kblockd\n");
 
diff --git a/block/blk-flush.c b/block/blk-flush.c
index 8ffee4b5f93d..3cb5e9e7108a 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -422,44 +422,6 @@ void blk_insert_flush(struct request *rq)
 }
 
 /**
- * blk_abort_flushes - @q is being aborted, abort flush requests
- * @q: request_queue being aborted
- *
- * To be called from elv_abort_queue().  @q is being aborted.  Prepare all
- * FLUSH/FUA requests for abortion.
- *
- * CONTEXT:
- * spin_lock_irq(q->queue_lock)
- */
-void blk_abort_flushes(struct request_queue *q)
-{
-        struct request *rq, *n;
-        int i;
-
-        /*
-         * Requests in flight for data are already owned by the dispatch
-         * queue or the device driver.  Just restore for normal completion.
-         */
-        list_for_each_entry_safe(rq, n, &q->flush_data_in_flight, flush.list) {
-                list_del_init(&rq->flush.list);
-                blk_flush_restore_request(rq);
-        }
-
-        /*
-         * We need to give away requests on flush queues.  Restore for
-         * normal completion and put them on the dispatch queue.
-         */
-        for (i = 0; i < ARRAY_SIZE(q->flush_queue); i++) {
-                list_for_each_entry_safe(rq, n, &q->flush_queue[i],
-                                         flush.list) {
-                        list_del_init(&rq->flush.list);
-                        blk_flush_restore_request(rq);
-                        list_add_tail(&rq->queuelist, &q->queue_head);
-                }
-        }
-}
-
-/**
  * blkdev_issue_flush - queue a flush
  * @bdev:       blockdev to issue flush for
  * @gfp_mask:   memory allocation flags (for bio_alloc)
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index 1aab39f71d95..c1b92426c95e 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -43,9 +43,16 @@ bool blk_mq_has_free_tags(struct blk_mq_tags *tags)
         return bt_has_free_tags(&tags->bitmap_tags);
 }
 
-static inline void bt_index_inc(unsigned int *index)
+static inline int bt_index_inc(int index)
 {
-        *index = (*index + 1) & (BT_WAIT_QUEUES - 1);
+        return (index + 1) & (BT_WAIT_QUEUES - 1);
+}
+
+static inline void bt_index_atomic_inc(atomic_t *index)
+{
+        int old = atomic_read(index);
+        int new = bt_index_inc(old);
+        atomic_cmpxchg(index, old, new);
 }
 
 /*
@@ -69,14 +76,14 @@ static void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags)
         int i, wake_index;
 
         bt = &tags->bitmap_tags;
-        wake_index = bt->wake_index;
+        wake_index = atomic_read(&bt->wake_index);
         for (i = 0; i < BT_WAIT_QUEUES; i++) {
                 struct bt_wait_state *bs = &bt->bs[wake_index];
 
                 if (waitqueue_active(&bs->wait))
                         wake_up(&bs->wait);
 
-                bt_index_inc(&wake_index);
+                wake_index = bt_index_inc(wake_index);
         }
 }
 
@@ -212,12 +219,14 @@ static struct bt_wait_state *bt_wait_ptr(struct blk_mq_bitmap_tags *bt,
                                          struct blk_mq_hw_ctx *hctx)
 {
         struct bt_wait_state *bs;
+        int wait_index;
 
         if (!hctx)
                 return &bt->bs[0];
 
-        bs = &bt->bs[hctx->wait_index];
-        bt_index_inc(&hctx->wait_index);
+        wait_index = atomic_read(&hctx->wait_index);
+        bs = &bt->bs[wait_index];
+        bt_index_atomic_inc(&hctx->wait_index);
         return bs;
 }
 
@@ -239,18 +248,12 @@ static int bt_get(struct blk_mq_alloc_data *data,
 
         bs = bt_wait_ptr(bt, hctx);
         do {
-                bool was_empty;
-
-                was_empty = list_empty(&wait.task_list);
                 prepare_to_wait(&bs->wait, &wait, TASK_UNINTERRUPTIBLE);
 
                 tag = __bt_get(hctx, bt, last_tag);
                 if (tag != -1)
                         break;
 
-                if (was_empty)
-                        atomic_set(&bs->wait_cnt, bt->wake_cnt);
-
                 blk_mq_put_ctx(data->ctx);
 
                 io_schedule();
@@ -313,18 +316,19 @@ static struct bt_wait_state *bt_wake_ptr(struct blk_mq_bitmap_tags *bt)
 {
         int i, wake_index;
 
-        wake_index = bt->wake_index;
+        wake_index = atomic_read(&bt->wake_index);
         for (i = 0; i < BT_WAIT_QUEUES; i++) {
                 struct bt_wait_state *bs = &bt->bs[wake_index];
 
                 if (waitqueue_active(&bs->wait)) {
-                        if (wake_index != bt->wake_index)
-                                bt->wake_index = wake_index;
+                        int o = atomic_read(&bt->wake_index);
+                        if (wake_index != o)
+                                atomic_cmpxchg(&bt->wake_index, o, wake_index);
 
                         return bs;
                 }
 
-                bt_index_inc(&wake_index);
+                wake_index = bt_index_inc(wake_index);
         }
 
         return NULL;
@@ -334,6 +338,7 @@ static void bt_clear_tag(struct blk_mq_bitmap_tags *bt, unsigned int tag)
 {
         const int index = TAG_TO_INDEX(bt, tag);
         struct bt_wait_state *bs;
+        int wait_cnt;
 
         /*
          * The unlock memory barrier need to order access to req in free
@@ -342,10 +347,19 @@ static void bt_clear_tag(struct blk_mq_bitmap_tags *bt, unsigned int tag)
         clear_bit_unlock(TAG_TO_BIT(bt, tag), &bt->map[index].word);
 
         bs = bt_wake_ptr(bt);
-        if (bs && atomic_dec_and_test(&bs->wait_cnt)) {
-                atomic_set(&bs->wait_cnt, bt->wake_cnt);
-                bt_index_inc(&bt->wake_index);
+        if (!bs)
+                return;
+
+        wait_cnt = atomic_dec_return(&bs->wait_cnt);
+        if (wait_cnt == 0) {
+wake:
+                atomic_add(bt->wake_cnt, &bs->wait_cnt);
+                bt_index_atomic_inc(&bt->wake_index);
                 wake_up(&bs->wait);
+        } else if (wait_cnt < 0) {
+                wait_cnt = atomic_inc_return(&bs->wait_cnt);
+                if (!wait_cnt)
+                        goto wake;
         }
 }
 
@@ -499,10 +513,13 @@ static int bt_alloc(struct blk_mq_bitmap_tags *bt, unsigned int depth,
                 return -ENOMEM;
         }
 
-        for (i = 0; i < BT_WAIT_QUEUES; i++)
+        bt_update_count(bt, depth);
+
+        for (i = 0; i < BT_WAIT_QUEUES; i++) {
                 init_waitqueue_head(&bt->bs[i].wait);
+                atomic_set(&bt->bs[i].wait_cnt, bt->wake_cnt);
+        }
 
-        bt_update_count(bt, depth);
         return 0;
 }
 
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h
index 98696a65d4d4..6206ed17ef76 100644
--- a/block/blk-mq-tag.h
+++ b/block/blk-mq-tag.h
@@ -24,7 +24,7 @@ struct blk_mq_bitmap_tags {
         unsigned int map_nr;
         struct blk_align_bitmap *map;
 
-        unsigned int wake_index;
+        atomic_t wake_index;
         struct bt_wait_state *bs;
 };
 
diff --git a/block/blk-mq.c b/block/blk-mq.c
index e11f5f8e0313..0ef2dc7f01bf 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -109,7 +109,7 @@ static void blk_mq_queue_exit(struct request_queue *q)
         __percpu_counter_add(&q->mq_usage_counter, -1, 1000000);
 }
 
-static void __blk_mq_drain_queue(struct request_queue *q)
+void blk_mq_drain_queue(struct request_queue *q)
 {
         while (true) {
                 s64 count;
@@ -120,7 +120,7 @@ static void __blk_mq_drain_queue(struct request_queue *q)
 
                 if (count == 0)
                         break;
-                blk_mq_run_queues(q, false);
+                blk_mq_start_hw_queues(q);
                 msleep(10);
         }
 }
@@ -139,12 +139,7 @@ static void blk_mq_freeze_queue(struct request_queue *q)
         spin_unlock_irq(q->queue_lock);
 
         if (drain)
-                __blk_mq_drain_queue(q);
-}
-
-void blk_mq_drain_queue(struct request_queue *q)
-{
-        __blk_mq_drain_queue(q);
+                blk_mq_drain_queue(q);
 }
 
 static void blk_mq_unfreeze_queue(struct request_queue *q)
diff --git a/block/blk.h b/block/blk.h
index 45385e9abf6f..6748c4f8d7a1 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -84,7 +84,6 @@ static inline void blk_clear_rq_complete(struct request *rq)
 #define ELV_ON_HASH(rq) ((rq)->cmd_flags & REQ_HASHED)
 
 void blk_insert_flush(struct request *rq);
-void blk_abort_flushes(struct request_queue *q);
 
 static inline struct request *__elv_next_request(struct request_queue *q)
 {
diff --git a/block/elevator.c b/block/elevator.c
index f35edddfe9b5..34bded18910e 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -729,26 +729,6 @@ int elv_may_queue(struct request_queue *q, int rw)
         return ELV_MQUEUE_MAY;
 }
 
-void elv_abort_queue(struct request_queue *q)
-{
-        struct request *rq;
-
-        blk_abort_flushes(q);
-
-        while (!list_empty(&q->queue_head)) {
-                rq = list_entry_rq(q->queue_head.next);
-                rq->cmd_flags |= REQ_QUIET;
-                trace_block_rq_abort(q, rq);
-                /*
-                 * Mark this request as started so we don't trigger
-                 * any debug logic in the end I/O path.
-                 */
-                blk_start_request(rq);
-                __blk_end_request_all(rq, -EIO);
-        }
-}
-EXPORT_SYMBOL(elv_abort_queue);
-
 void elv_completed_request(struct request_queue *q, struct request *rq)
 {
         struct elevator_queue *e = q->elevator;
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 63407d264885..9cb65b0e7597 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -34,6 +34,9 @@ ACPI_MODULE_NAME("acpi_lpss");
 
 /* Offsets relative to LPSS_PRIVATE_OFFSET */
 #define LPSS_CLK_DIVIDER_DEF_MASK       (BIT(1) | BIT(16))
+#define LPSS_RESETS                     0x04
+#define LPSS_RESETS_RESET_FUNC          BIT(0)
+#define LPSS_RESETS_RESET_APB           BIT(1)
 #define LPSS_GENERAL                    0x08
 #define LPSS_GENERAL_LTR_MODE_SW        BIT(2)
 #define LPSS_GENERAL_UART_RTS_OVRD      BIT(3)
@@ -99,6 +102,17 @@ static void lpss_uart_setup(struct lpss_private_data *pdata)
         writel(reg | LPSS_GENERAL_UART_RTS_OVRD, pdata->mmio_base + offset);
 }
 
+static void lpss_i2c_setup(struct lpss_private_data *pdata)
+{
+        unsigned int offset;
+        u32 val;
+
+        offset = pdata->dev_desc->prv_offset + LPSS_RESETS;
+        val = readl(pdata->mmio_base + offset);
+        val |= LPSS_RESETS_RESET_APB | LPSS_RESETS_RESET_FUNC;
+        writel(val, pdata->mmio_base + offset);
+}
+
 static struct lpss_device_desc lpt_dev_desc = {
         .clk_required = true,
         .prv_offset = 0x800,
@@ -171,6 +185,7 @@ static struct lpss_device_desc byt_i2c_dev_desc = {
         .prv_offset = 0x800,
         .save_ctx = true,
         .shared_clock = &i2c_clock,
+        .setup = lpss_i2c_setup,
 };
 
 #else
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index e48fc98e71c4..0d7116f34b95 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -32,6 +32,7 @@
 #include <linux/jiffies.h>
 #include <linux/async.h>
 #include <linux/dmi.h>
+#include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/suspend.h>
 #include <asm/unaligned.h>
@@ -70,6 +71,7 @@ MODULE_DESCRIPTION("ACPI Battery Driver");
 MODULE_LICENSE("GPL");
 
 static int battery_bix_broken_package;
+static int battery_notification_delay_ms;
 static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
@@ -930,7 +932,10 @@ static ssize_t acpi_battery_write_alarm(struct file *file,
                 goto end;
         }
         alarm_string[count] = '\0';
-        battery->alarm = simple_strtol(alarm_string, NULL, 0);
+        if (kstrtoint(alarm_string, 0, &battery->alarm)) {
+                result = -EINVAL;
+                goto end;
+        }
         result = acpi_battery_set_alarm(battery);
       end:
         if (!result)
@@ -1062,6 +1067,14 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
         if (!battery)
                 return;
         old = battery->bat.dev;
+        /*
+        * On Acer Aspire V5-573G notifications are sometimes triggered too
+        * early. For example, when AC is unplugged and notification is
+        * triggered, battery state is still reported as "Full", and changes to
+        * "Discharging" only after short delay, without any notification.
+        */
+        if (battery_notification_delay_ms > 0)
+                msleep(battery_notification_delay_ms);
         if (event == ACPI_BATTERY_NOTIFY_INFO)
                 acpi_battery_refresh(battery);
         acpi_battery_update(battery, false);
@@ -1106,14 +1119,35 @@ static int battery_notify(struct notifier_block *nb,
         return 0;
 }
 
+static int battery_bix_broken_package_quirk(const struct dmi_system_id *d)
+{
+        battery_bix_broken_package = 1;
+        return 0;
+}
+
+static int battery_notification_delay_quirk(const struct dmi_system_id *d)
+{
+        battery_notification_delay_ms = 1000;
+        return 0;
+}
+
 static struct dmi_system_id bat_dmi_table[] = {
         {
+                .callback = battery_bix_broken_package_quirk,
                 .ident = "NEC LZ750/LS",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "NEC"),
                         DMI_MATCH(DMI_PRODUCT_NAME, "PC-LZ750LS"),
                 },
         },
+        {
+                .callback = battery_notification_delay_quirk,
+                .ident = "Acer Aspire V5-573G",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-573G"),
+                },
+        },
         {},
 };
 
@@ -1227,8 +1261,7 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie)
         if (acpi_disabled)
                 return;
 
-        if (dmi_check_system(bat_dmi_table))
-                battery_bix_broken_package = 1;
+        dmi_check_system(bat_dmi_table);
         
 #ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_battery_dir = acpi_lock_battery_dir();
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 3f2bdc812d23..bad25b070fe0 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -235,7 +235,8 @@ void acpi_os_vprintf(const char *fmt, va_list args)
 static unsigned long acpi_rsdp;
 static int __init setup_acpi_rsdp(char *arg)
 {
-        acpi_rsdp = simple_strtoul(arg, NULL, 16);
+        if (kstrtoul(arg, 16, &acpi_rsdp))
+                return -EINVAL;
         return 0;
 }
 early_param("acpi_rsdp", setup_acpi_rsdp);
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 05550ba44d32..6d5a6cda0734 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -360,7 +360,8 @@ static int __init acpi_parse_apic_instance(char *str)
         if (!str)
                 return -EINVAL;
 
-        acpi_apic_instance = simple_strtoul(str, NULL, 0);
+        if (kstrtoint(str, 0, &acpi_apic_instance))
+                return -EINVAL;
 
         pr_notice("Shall use APIC/MADT table %d\n", acpi_apic_instance);
 
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index 77087a29b127..a3b042c4d448 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -79,7 +79,7 @@ MODULE_PARM_DESC(home_node, "Home node for the device");
 
 static int queue_mode = NULL_Q_MQ;
 module_param(queue_mode, int, S_IRUGO);
-MODULE_PARM_DESC(use_mq, "Use blk-mq interface (0=bio,1=rq,2=multiqueue)");
+MODULE_PARM_DESC(queue_mode, "Block interface to use (0=bio,1=rq,2=multiqueue)");
 
 static int gb = 250;
 module_param(gb, int, S_IRUGO);
@@ -227,7 +227,10 @@ static void null_cmd_end_timer(struct nullb_cmd *cmd)
 
 static void null_softirq_done_fn(struct request *rq)
 {
-        end_cmd(blk_mq_rq_to_pdu(rq));
+        if (queue_mode == NULL_Q_MQ)
+                end_cmd(blk_mq_rq_to_pdu(rq));
+        else
+                end_cmd(rq->special);
 }
 
 static inline void null_handle_cmd(struct nullb_cmd *cmd)
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index a118ec1650fa..1f37d9870e7a 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -45,7 +45,7 @@ config OMAP_INTERCONNECT
 
 config ARM_CCI
         bool "ARM CCI driver support"
-        depends on ARM
+        depends on ARM && OF && CPU_V7
         help
           Driver supporting the CCI cache coherent interconnect for ARM
           platforms.
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 4ad71ef2cd59..0a7ac0a7b252 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -980,7 +980,6 @@ static void push_to_pool(struct work_struct *work)
 static size_t account(struct entropy_store *r, size_t nbytes, int min,
                       int reserved)
 {
-        int have_bytes;
         int entropy_count, orig;
         size_t ibytes;
 
@@ -989,17 +988,19 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
         /* Can we pull enough? */
 retry:
         entropy_count = orig = ACCESS_ONCE(r->entropy_count);
-        have_bytes = entropy_count >> (ENTROPY_SHIFT + 3);
         ibytes = nbytes;
         /* If limited, never pull more than available */
-        if (r->limit)
-                ibytes = min_t(size_t, ibytes, have_bytes - reserved);
+        if (r->limit) {
+                int have_bytes = entropy_count >> (ENTROPY_SHIFT + 3);
+
+                if ((have_bytes -= reserved) < 0)
+                        have_bytes = 0;
+                ibytes = min_t(size_t, ibytes, have_bytes);
+        }
         if (ibytes < min)
                 ibytes = 0;
-        if (have_bytes >= ibytes + reserved)
-                entropy_count -= ibytes << (ENTROPY_SHIFT + 3);
-        else
-                entropy_count = reserved << (ENTROPY_SHIFT + 3);
+        if ((entropy_count -= ibytes << (ENTROPY_SHIFT + 3)) < 0)
+                entropy_count = 0;
 
         if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
                 goto retry;
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index e473d6555f96..ffe350f86bca 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -186,6 +186,8 @@ config CPU_FREQ_GOV_CONSERVATIVE
 config GENERIC_CPUFREQ_CPU0
         tristate "Generic CPU0 cpufreq driver"
         depends on HAVE_CLK && OF
+        # if CPU_THERMAL is on and THERMAL=m, CPU0 cannot be =y:
+        depends on !CPU_THERMAL || THERMAL
         select PM_OPP
         help
           This adds a generic cpufreq driver for CPU0 frequency management.
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index aed2b0cb83dc..62259d27f03e 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2242,10 +2242,8 @@ int cpufreq_update_policy(unsigned int cpu)
         struct cpufreq_policy new_policy;
         int ret;
 
-        if (!policy) {
-                ret = -ENODEV;
-                goto no_policy;
-        }
+        if (!policy)
+                return -ENODEV;
 
         down_write(&policy->rwsem);
 
@@ -2264,7 +2262,7 @@ int cpufreq_update_policy(unsigned int cpu)
                 new_policy.cur = cpufreq_driver->get(cpu);
                 if (WARN_ON(!new_policy.cur)) {
                         ret = -EIO;
-                        goto no_policy;
+                        goto unlock;
                 }
 
                 if (!policy->cur) {
@@ -2279,10 +2277,10 @@ int cpufreq_update_policy(unsigned int cpu)
 
         ret = cpufreq_set_policy(policy, &new_policy);
 
+unlock:
         up_write(&policy->rwsem);
 
         cpufreq_cpu_put(policy);
-no_policy:
         return ret;
 }
 EXPORT_SYMBOL(cpufreq_update_policy);
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 4e7f492ad583..924bb2d42b1c 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -196,10 +196,7 @@ static signed int pid_calc(struct _pid *pid, int32_t busy)
         pid->last_err = fp_error;
 
         result = pterm + mul_fp(pid->integral, pid->i_gain) + dterm;
-        if (result >= 0)
-                result = result + (1 << (FRAC_BITS-1));
-        else
-                result = result - (1 << (FRAC_BITS-1));
+        result = result + (1 << (FRAC_BITS-1));
         return (signed int)fp_toint(result);
 }
 
diff --git a/drivers/cpuidle/cpuidle-armada-370-xp.c b/drivers/cpuidle/cpuidle-armada-370-xp.c
index 28587d0f3947..a5fba0287bfb 100644
--- a/drivers/cpuidle/cpuidle-armada-370-xp.c
+++ b/drivers/cpuidle/cpuidle-armada-370-xp.c
@@ -55,7 +55,7 @@ static struct cpuidle_driver armada_370_xp_idle_driver = {
                 .power_usage            = 50,
                 .target_residency       = 100,
                 .flags                  = CPUIDLE_FLAG_TIME_VALID,
-                .name                   = "MV CPU IDLE",
+                .name                   = "Idle",
                 .desc                   = "CPU power down",
         },
         .states[2]              = {
@@ -65,7 +65,7 @@ static struct cpuidle_driver armada_370_xp_idle_driver = {
                 .target_residency       = 1000,
                 .flags                  = CPUIDLE_FLAG_TIME_VALID |
                                                 ARMADA_370_XP_FLAG_DEEP_IDLE,
-                .name                   = "MV CPU DEEP IDLE",
+                .name                   = "Deep idle",
                 .desc                   = "CPU and L2 Fabric power down",
         },
         .state_count = ARMADA_370_XP_MAX_STATES,
diff --git a/drivers/gpu/drm/drm_modeset_lock.c b/drivers/gpu/drm/drm_modeset_lock.c
index 7c2497dea1e9..0dc57d5ecd10 100644
--- a/drivers/gpu/drm/drm_modeset_lock.c
+++ b/drivers/gpu/drm/drm_modeset_lock.c
@@ -64,6 +64,7 @@
 void drm_modeset_acquire_init(struct drm_modeset_acquire_ctx *ctx,
                 uint32_t flags)
 {
+        memset(ctx, 0, sizeof(*ctx));
         ww_acquire_init(&ctx->ww_ctx, &crtc_ww_class);
         INIT_LIST_HEAD(&ctx->locked);
 }
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 4c22a5b7f4c5..6c656392d67d 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -36,6 +36,8 @@
 #include "i915_drv.h"
 #include "i915_trace.h"
 #include <linux/pci.h>
+#include <linux/console.h>
+#include <linux/vt.h>
 #include <linux/vgaarb.h>
 #include <linux/acpi.h>
 #include <linux/pnp.h>
@@ -1386,7 +1388,6 @@ cleanup_gem:
         i915_gem_context_fini(dev);
         mutex_unlock(&dev->struct_mutex);
         WARN_ON(dev_priv->mm.aliasing_ppgtt);
-        drm_mm_takedown(&dev_priv->gtt.base.mm);
 cleanup_irq:
         drm_irq_uninstall(dev);
 cleanup_gem_stolen:
@@ -1450,6 +1451,38 @@ static void i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
 }
 #endif
 
+#if !defined(CONFIG_VGA_CONSOLE)
+static int i915_kick_out_vgacon(struct drm_i915_private *dev_priv)
+{
+        return 0;
+}
+#elif !defined(CONFIG_DUMMY_CONSOLE)
+static int i915_kick_out_vgacon(struct drm_i915_private *dev_priv)
+{
+        return -ENODEV;
+}
+#else
+static int i915_kick_out_vgacon(struct drm_i915_private *dev_priv)
+{
+        int ret;
+
+        DRM_INFO("Replacing VGA console driver\n");
+
+        console_lock();
+        ret = do_take_over_console(&dummy_con, 0, MAX_NR_CONSOLES - 1, 1);
+        if (ret == 0) {
+                ret = do_unregister_con_driver(&vga_con);
+
+                /* Ignore "already unregistered". */
+                if (ret == -ENODEV)
+                        ret = 0;
+        }
+        console_unlock();
+
+        return ret;
+}
+#endif
+
 static void i915_dump_device_info(struct drm_i915_private *dev_priv)
 {
         const struct intel_device_info *info = &dev_priv->info;
@@ -1623,8 +1656,15 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         if (ret)
                 goto out_regs;
 
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
+        if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+                ret = i915_kick_out_vgacon(dev_priv);
+                if (ret) {
+                        DRM_ERROR("failed to remove conflicting VGA console\n");
+                        goto out_gtt;
+                }
+
                 i915_kick_out_firmware_fb(dev_priv);
+        }
 
         pci_set_master(dev->pdev);
 
@@ -1756,8 +1796,6 @@ out_mtrrfree:
         arch_phys_wc_del(dev_priv->gtt.mtrr);
         io_mapping_free(dev_priv->gtt.mappable);
 out_gtt:
-        list_del(&dev_priv->gtt.base.global_link);
-        drm_mm_takedown(&dev_priv->gtt.base.mm);
         dev_priv->gtt.base.cleanup(&dev_priv->gtt.base);
 out_regs:
         intel_uncore_fini(dev);
@@ -1846,7 +1884,6 @@ int i915_driver_unload(struct drm_device *dev)
                         i915_free_hws(dev);
         }
 
-        list_del(&dev_priv->gtt.base.global_link);
         WARN_ON(!list_empty(&dev_priv->vm_list));
 
         drm_vblank_cleanup(dev);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index eec820aec022..8b3cde703364 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1992,7 +1992,10 @@ static void gen6_gmch_remove(struct i915_address_space *vm)
 
         struct i915_gtt *gtt = container_of(vm, struct i915_gtt, base);
 
-        drm_mm_takedown(&vm->mm);
+        if (drm_mm_initialized(&vm->mm)) {
+                drm_mm_takedown(&vm->mm);
+                list_del(&vm->global_link);
+        }
         iounmap(gtt->gsm);
         teardown_scratch_page(vm->dev);
 }
@@ -2025,6 +2028,10 @@ static int i915_gmch_probe(struct drm_device *dev,
 
 static void i915_gmch_remove(struct i915_address_space *vm)
 {
+        if (drm_mm_initialized(&vm->mm)) {
+                drm_mm_takedown(&vm->mm);
+                list_del(&vm->global_link);
+        }
         intel_gmch_remove();
 }
 
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 87ec60e181a7..66cf41765bf9 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -888,6 +888,8 @@ static void i915_gem_record_rings(struct drm_device *dev,
         for (i = 0; i < I915_NUM_RINGS; i++) {
                 struct intel_engine_cs *ring = &dev_priv->ring[i];
 
+                error->ring[i].pid = -1;
+
                 if (ring->dev == NULL)
                         continue;
 
@@ -895,7 +897,6 @@ static void i915_gem_record_rings(struct drm_device *dev,
 
                 i915_record_ring_state(dev, ring, &error->ring[i]);
 
-                error->ring[i].pid = -1;
                 request = i915_gem_find_active_request(ring);
                 if (request) {
                         /* We need to copy these to an anonymous buffer
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 6f8017a7e937..267f069765ad 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2847,10 +2847,14 @@ static int semaphore_passed(struct intel_engine_cs *ring)
         struct intel_engine_cs *signaller;
         u32 seqno, ctl;
 
-        ring->hangcheck.deadlock = true;
+        ring->hangcheck.deadlock++;
 
         signaller = semaphore_waits_for(ring, &seqno);
-        if (signaller == NULL || signaller->hangcheck.deadlock)
+        if (signaller == NULL)
+                return -1;
+
+        /* Prevent pathological recursion due to driver bugs */
+        if (signaller->hangcheck.deadlock >= I915_NUM_RINGS)
                 return -1;
 
         /* cursory check for an unkickable deadlock */
@@ -2858,7 +2862,13 @@ static int semaphore_passed(struct intel_engine_cs *ring)
         if (ctl & RING_WAIT_SEMAPHORE && semaphore_passed(signaller) < 0)
                 return -1;
 
-        return i915_seqno_passed(signaller->get_seqno(signaller, false), seqno);
+        if (i915_seqno_passed(signaller->get_seqno(signaller, false), seqno))
+                return 1;
+
+        if (signaller->hangcheck.deadlock)
+                return -1;
+
+        return 0;
 }
 
 static void semaphore_clear_deadlocks(struct drm_i915_private *dev_priv)
@@ -2867,7 +2877,7 @@ static void semaphore_clear_deadlocks(struct drm_i915_private *dev_priv)
         int i;
 
         for_each_ring(ring, dev_priv, i)
-                ring->hangcheck.deadlock = false;
+                ring->hangcheck.deadlock = 0;
 }
 
 static enum intel_ring_hangcheck_action
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 5e6c888b4928..38a98570d10c 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -798,9 +798,6 @@ static void i965_enable_backlight(struct intel_connector *connector)
         ctl = freq << 16;
         I915_WRITE(BLC_PWM_CTL, ctl);
 
-        /* XXX: combine this into above write? */
-        intel_panel_actually_set_backlight(connector, panel->backlight.level);
-
         ctl2 = BLM_PIPE(pipe);
         if (panel->backlight.combination_mode)
                 ctl2 |= BLM_COMBINATION_MODE;
@@ -809,6 +806,8 @@ static void i965_enable_backlight(struct intel_connector *connector)
         I915_WRITE(BLC_PWM_CTL2, ctl2);
         POSTING_READ(BLC_PWM_CTL2);
         I915_WRITE(BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);
+
+        intel_panel_actually_set_backlight(connector, panel->backlight.level);
 }
 
 static void vlv_enable_backlight(struct intel_connector *connector)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index d1e53abec1b5..54242e4f6f4c 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -511,8 +511,7 @@ void intel_update_fbc(struct drm_device *dev)
         obj = intel_fb->obj;
         adjusted_mode = &intel_crtc->config.adjusted_mode;
 
-        if (i915.enable_fbc < 0 &&
-            INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev)) {
+        if (i915.enable_fbc < 0) {
                 if (set_no_fbc_reason(dev_priv, FBC_CHIP_DEFAULT))
                         DRM_DEBUG_KMS("disabled per chip default\n");
                 goto out_disable;
@@ -3506,15 +3505,11 @@ static void gen8_enable_rps(struct drm_device *dev)
 
         I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
 
-        /* WaDisablePwrmtrEvent:chv (pre-production hw) */
-        I915_WRITE(0xA80C, I915_READ(0xA80C) & 0x00ffffff);
-        I915_WRITE(0xA810, I915_READ(0xA810) & 0xffffff00);
-
         /* 5: Enable RPS */
         I915_WRITE(GEN6_RP_CONTROL,
                    GEN6_RP_MEDIA_TURBO |
                    GEN6_RP_MEDIA_HW_NORMAL_MODE |
-                   GEN6_RP_MEDIA_IS_GFX | /* WaSetMaskForGfxBusyness:chv (pre-production hw ?) */
+                   GEN6_RP_MEDIA_IS_GFX |
                    GEN6_RP_ENABLE |
                    GEN6_RP_UP_BUSY_AVG |
                    GEN6_RP_DOWN_IDLE_AVG);
@@ -6024,30 +6019,32 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
 static struct i915_power_domains *hsw_pwr;
 
 /* Display audio driver power well request */
-void i915_request_power_well(void)
+int i915_request_power_well(void)
 {
         struct drm_i915_private *dev_priv;
 
-        if (WARN_ON(!hsw_pwr))
-                return;
+        if (!hsw_pwr)
+                return -ENODEV;
 
         dev_priv = container_of(hsw_pwr, struct drm_i915_private,
                                 power_domains);
         intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO);
+        return 0;
 }
 EXPORT_SYMBOL_GPL(i915_request_power_well);
 
 /* Display audio driver power well release */
-void i915_release_power_well(void)
+int i915_release_power_well(void)
 {
         struct drm_i915_private *dev_priv;
 
-        if (WARN_ON(!hsw_pwr))
-                return;
+        if (!hsw_pwr)
+                return -ENODEV;
 
         dev_priv = container_of(hsw_pwr, struct drm_i915_private,
                                 power_domains);
         intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO);
+        return 0;
 }
 EXPORT_SYMBOL_GPL(i915_release_power_well);
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 910c83cf7d44..e72017bdcd7f 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -55,7 +55,7 @@ struct intel_ring_hangcheck {
         u32 seqno;
         int score;
         enum intel_ring_hangcheck_action action;
-        bool deadlock;
+        int deadlock;
 };
 
 struct intel_ringbuffer {
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 6a4d5bc17697..20375cc7f82d 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1385,7 +1385,9 @@ static void intel_sdvo_get_config(struct intel_encoder *encoder,
                          >> SDVO_PORT_MULTIPLY_SHIFT) + 1;
         }
 
-        dotclock = pipe_config->port_clock / pipe_config->pixel_multiplier;
+        dotclock = pipe_config->port_clock;
+        if (pipe_config->pixel_multiplier)
+                dotclock /= pipe_config->pixel_multiplier;
 
         if (HAS_PCH_SPLIT(dev))
                 ironlake_check_encoder_dotclock(pipe_config, dotclock);
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 79cba593df0d..4f6fef7ac069 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -320,7 +320,8 @@ static void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore)
         struct drm_i915_private *dev_priv = dev->dev_private;
         unsigned long irqflags;
 
-        del_timer_sync(&dev_priv->uncore.force_wake_timer);
+        if (del_timer_sync(&dev_priv->uncore.force_wake_timer))
+                gen6_force_wake_timer((unsigned long)dev_priv);
 
         /* Hold uncore.lock across reset to prevent any register access
          * with forcewake not set correctly
diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index 2b6156d0e4b5..8b307e143632 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -140,6 +140,7 @@ nouveau-y += core/subdev/i2c/nv4e.o
 nouveau-y += core/subdev/i2c/nv50.o
 nouveau-y += core/subdev/i2c/nv94.o
 nouveau-y += core/subdev/i2c/nvd0.o
+nouveau-y += core/subdev/i2c/gf117.o
 nouveau-y += core/subdev/i2c/nve0.o
 nouveau-y += core/subdev/ibus/nvc0.o
 nouveau-y += core/subdev/ibus/nve0.o
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
index f199957995fa..8d55ed633b19 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
@@ -314,7 +314,7 @@ nvc0_identify(struct nouveau_device *device)
                 device->cname = "GF117";
                 device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                 device->oclass[NVDEV_SUBDEV_GPIO   ] =  nvd0_gpio_oclass;
-                device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
+                device->oclass[NVDEV_SUBDEV_I2C    ] =  gf117_i2c_oclass;
                 device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                 device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
                 device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/base.c b/drivers/gpu/drm/nouveau/core/engine/disp/base.c
index c41f656abe64..9c38c5e40500 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/base.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/base.c
@@ -99,8 +99,10 @@ _nouveau_disp_dtor(struct nouveau_object *object)
 
         nouveau_event_destroy(&disp->vblank);
 
-        list_for_each_entry_safe(outp, outt, &disp->outp, head) {
-                nouveau_object_ref(NULL, (struct nouveau_object **)&outp);
+        if (disp->outp.next) {
+                list_for_each_entry_safe(outp, outt, &disp->outp, head) {
+                        nouveau_object_ref(NULL, (struct nouveau_object **)&outp);
+                }
         }
 
         nouveau_engine_destroy(&disp->base);
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dport.c b/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
index 39562d48101d..5a5b59b21130 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
@@ -241,7 +241,9 @@ dp_link_train_eq(struct dp_state *dp)
                 dp_set_training_pattern(dp, 2);
 
         do {
-                if (dp_link_train_update(dp, dp->pc2, 400))
+                if ((tries &&
+                    dp_link_train_commit(dp, dp->pc2)) ||
+                    dp_link_train_update(dp, dp->pc2, 400))
                         break;
 
                 eq_done = !!(dp->stat[2] & DPCD_LS04_INTERLANE_ALIGN_DONE);
@@ -253,9 +255,6 @@ dp_link_train_eq(struct dp_state *dp)
                             !(lane & DPCD_LS02_LANE0_SYMBOL_LOCKED))
                                 eq_done = false;
                 }
-
-                if (dp_link_train_commit(dp, dp->pc2))
-                        break;
         } while (!eq_done && cr_done && ++tries <= 5);
 
         return eq_done ? 0 : -1;
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
index 1e85f36c705f..26e962b7e702 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
@@ -1270,7 +1270,7 @@ exec_clkcmp(struct nv50_disp_priv *priv, int head, int id, u32 pclk, u32 *conf)
         i--;
 
         outp = exec_lookup(priv, head, i, ctrl, &data, &ver, &hdr, &cnt, &len, &info1);
-        if (!data)
+        if (!outp)
                 return NULL;
 
         if (outp->info.location == 0) {
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/gpc.fuc b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/gpc.fuc
index 2f7345f7fe07..7445f12b1d9e 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/gpc.fuc
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/gpc.fuc
@@ -54,7 +54,7 @@ mmio_list_base:
 #ifdef INCLUDE_CODE
 // reports an exception to the host
 //
-// In: $r15 error code (see nvc0.fuc)
+// In: $r15 error code (see os.h)
 //
 error:
         push $r14
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hub.fuc b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hub.fuc
index c8ddb8d71b91..b4ad18bf5a26 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hub.fuc
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hub.fuc
@@ -49,7 +49,7 @@ hub_mmio_list_next:
 #ifdef INCLUDE_CODE
 // reports an exception to the host
 //
-// In: $r15 error code (see nvc0.fuc)
+// In: $r15 error code (see os.h)
 //
 error:
         nv_iowr(NV_PGRAPH_FECS_CC_SCRATCH_VAL(5), 0, $r15)
@@ -343,13 +343,25 @@ ih:
         ih_no_ctxsw:
         and $r11 $r10 NV_PGRAPH_FECS_INTR_FWMTHD
         bra e #ih_no_fwmthd
-                // none we handle, ack, and fall-through to unhandled
+                // none we handle; report to host and ack
+                nv_rd32($r15, NV_PGRAPH_TRAPPED_DATA_LO)
+                nv_iowr(NV_PGRAPH_FECS_CC_SCRATCH_VAL(4), 0, $r15)
+                nv_rd32($r15, NV_PGRAPH_TRAPPED_ADDR)
+                nv_iowr(NV_PGRAPH_FECS_CC_SCRATCH_VAL(3), 0, $r15)
+                extr $r14 $r15 16:18
+                shl b32 $r14 $r14 2
+                imm32($r15, NV_PGRAPH_FE_OBJECT_TABLE(0))
+                add b32 $r14 $r15
+                call(nv_rd32)
+                nv_iowr(NV_PGRAPH_FECS_CC_SCRATCH_VAL(2), 0, $r15)
+                mov $r15 E_BAD_FWMTHD
+                call(error)
                 mov $r11 0x100
                 nv_wr32(0x400144, $r11)
 
         // anything we didn't handle, bring it to the host's attention
         ih_no_fwmthd:
-        mov $r11 0x104 // FIFO | CHSW
+        mov $r11 0x504 // FIFO | CHSW | FWMTHD
         not b32 $r11
         and $r11 $r10 $r11
         bra e #ih_no_other
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubgm107.fuc5.h b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubgm107.fuc5.h
index 214dd16ec566..5f953c5c20b7 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubgm107.fuc5.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubgm107.fuc5.h
@@ -478,10 +478,10 @@ uint32_t gm107_grhub_code[] = {
         0x01040080,
         0xbd0001f6,
         0x01004104,
-        0x627e020f,
-        0x717e0006,
+        0xa87e020f,
+        0xb77e0006,
         0x100f0006,
-        0x0006b37e,
+        0x0006f97e,
         0x98000e98,
         0x207e010f,
         0x14950001,
@@ -523,8 +523,8 @@ uint32_t gm107_grhub_code[] = {
         0x800040b7,
         0xf40132b6,
         0x000fb41b,
-        0x0006b37e,
-        0x627e000f,
+        0x0006f97e,
+        0xa87e000f,
         0x00800006,
         0x01f60201,
         0xbd04bd00,
@@ -554,7 +554,7 @@ uint32_t gm107_grhub_code[] = {
         0x0009f602,
         0x32f404bd,
         0x0231f401,
-        0x0008367e,
+        0x00087c7e,
         0x99f094bd,
         0x17008007,
         0x0009f602,
@@ -563,7 +563,7 @@ uint32_t gm107_grhub_code[] = {
         0x37008006,
         0x0009f602,
         0x31f404bd,
-        0x08367e01,
+        0x087c7e01,
         0xf094bd00,
         0x00800699,
         0x09f60217,
@@ -572,7 +572,7 @@ uint32_t gm107_grhub_code[] = {
         0x20f92f0e,
         0x32f412b2,
         0x0232f401,
-        0x0008367e,
+        0x00087c7e,
         0x008020fc,
         0x02f602c0,
         0xf404bd00,
@@ -580,7 +580,7 @@ uint32_t gm107_grhub_code[] = {
         0x23c8130e,
         0x0d0bf41f,
         0xf40131f4,
-        0x367e0232,
+        0x7c7e0232,
 /* 0x054e: chsw_done */
         0x01020008,
         0x02c30080,
@@ -593,7 +593,7 @@ uint32_t gm107_grhub_code[] = {
         0xb0ff2a0e,
         0x1bf401e4,
         0x7ef2b20c,
-        0xf40007d6,
+        0xf400081c,
 /* 0x057a: main_not_ctx_chan */
         0xe4b0400e,
         0x2c1bf402,
@@ -602,7 +602,7 @@ uint32_t gm107_grhub_code[] = {
         0x0009f602,
         0x32f404bd,
         0x0232f401,
-        0x0008367e,
+        0x00087c7e,
         0x99f094bd,
         0x17008007,
         0x0009f602,
@@ -642,238 +642,238 @@ uint32_t gm107_grhub_code[] = {
 /* 0x061a: ih_no_ctxsw */
         0xabe40000,
         0x0bf40400,
-        0x01004b10,
-        0x448ebfb2,
-        0x8f7e4001,
-/* 0x062e: ih_no_fwmthd */
-        0x044b0000,
-        0xffb0bd01,
-        0x0bf4b4ab,
-        0x0700800c,
-        0x000bf603,
-/* 0x0642: ih_no_other */
-        0x004004bd,
-        0x000af601,
-        0xf0fc04bd,
-        0xd0fce0fc,
-        0xa0fcb0fc,
-        0x80fc90fc,
-        0xfc0088fe,
-        0x0032f480,
-/* 0x0662: ctx_4170s */
-        0xf5f001f8,
-        0x8effb210,
-        0x7e404170,
-        0xf800008f,
-/* 0x0671: ctx_4170w */
-        0x41708e00,
+        0x07088e56,
         0x00657e40,
-        0xf0ffb200,
-        0x1bf410f4,
-/* 0x0683: ctx_redswitch */
-        0x4e00f8f3,
-        0xe5f00200,
-        0x20e5f040,
-        0x8010e5f0,
-        0xf6018500,
-        0x04bd000e,
-/* 0x069a: ctx_redswitch_delay */
-        0xf2b6080f,
-        0xfd1bf401,
-        0x0400e5f1,
-        0x0100e5f1,
-        0x01850080,
-        0xbd000ef6,
-/* 0x06b3: ctx_86c */
-        0x8000f804,
-        0xf6022300,
+        0x80ffb200,
+        0xf6020400,
         0x04bd000f,
-        0x148effb2,
-        0x8f7e408a,
-        0xffb20000,
-        0x41a88c8e,
+        0x4007048e,
+        0x0000657e,
+        0x0080ffb2,
+        0x0ff60203,
+        0xc704bd00,
+        0xee9450fe,
+        0x07008f02,
+        0x00efbb40,
+        0x0000657e,
+        0x02020080,
+        0xbd000ff6,
+        0x7e030f04,
+        0x4b0002f8,
+        0xbfb20100,
+        0x4001448e,
         0x00008f7e,
-/* 0x06d2: ctx_mem */
-        0x008000f8,
-        0x0ff60284,
-/* 0x06db: ctx_mem_wait */
-        0x8f04bd00,
-        0xcf028400,
-        0xfffd00ff,
-        0xf61bf405,
-/* 0x06ea: ctx_load */
-        0x94bd00f8,
-        0x800599f0,
-        0xf6023700,
-        0x04bd0009,
-        0xb87e0c0a,
-        0xf4bd0000,
-        0x02890080,
+/* 0x0674: ih_no_fwmthd */
+        0xbd05044b,
+        0xb4abffb0,
+        0x800c0bf4,
+        0xf6030700,
+        0x04bd000b,
+/* 0x0688: ih_no_other */
+        0xf6010040,
+        0x04bd000a,
+        0xe0fcf0fc,
+        0xb0fcd0fc,
+        0x90fca0fc,
+        0x88fe80fc,
+        0xf480fc00,
+        0x01f80032,
+/* 0x06a8: ctx_4170s */
+        0xb210f5f0,
+        0x41708eff,
+        0x008f7e40,
+/* 0x06b7: ctx_4170w */
+        0x8e00f800,
+        0x7e404170,
+        0xb2000065,
+        0x10f4f0ff,
+        0xf8f31bf4,
+/* 0x06c9: ctx_redswitch */
+        0x02004e00,
+        0xf040e5f0,
+        0xe5f020e5,
+        0x85008010,
+        0x000ef601,
+        0x080f04bd,
+/* 0x06e0: ctx_redswitch_delay */
+        0xf401f2b6,
+        0xe5f1fd1b,
+        0xe5f10400,
+        0x00800100,
+        0x0ef60185,
+        0xf804bd00,
+/* 0x06f9: ctx_86c */
+        0x23008000,
+        0x000ff602,
+        0xffb204bd,
+        0x408a148e,
+        0x00008f7e,
+        0x8c8effb2,
+        0x8f7e41a8,
+        0x00f80000,
+/* 0x0718: ctx_mem */
+        0x02840080,
         0xbd000ff6,
-        0xc1008004,
-        0x0002f602,
-        0x008004bd,
-        0x02f60283,
-        0x0f04bd00,
-        0x06d27e07,
-        0xc0008000,
-        0x0002f602,
-        0x0bfe04bd,
-        0x1f2af000,
-        0xb60424b6,
-        0x94bd0220,
-        0x800899f0,
-        0xf6023700,
-        0x04bd0009,
-        0x02810080,
-        0xbd0002f6,
-        0x0000d204,
-        0x25f08000,
-        0x88008002,
-        0x0002f602,
-        0x100104bd,
-        0xf0020042,
-        0x12fa0223,
-        0xbd03f805,
-        0x0899f094,
-        0x02170080,
-        0xbd0009f6,
-        0x81019804,
-        0x981814b6,
-        0x25b68002,
-        0x0512fd08,
-        0xbd1601b5,
-        0x0999f094,
-        0x02370080,
-        0xbd0009f6,
-        0x81008004,
-        0x0001f602,
-        0x010204bd,
-        0x02880080,
+/* 0x0721: ctx_mem_wait */
+        0x84008f04,
+        0x00ffcf02,
+        0xf405fffd,
+        0x00f8f61b,
+/* 0x0730: ctx_load */
+        0x99f094bd,
+        0x37008005,
+        0x0009f602,
+        0x0c0a04bd,
+        0x0000b87e,
+        0x0080f4bd,
+        0x0ff60289,
+        0x8004bd00,
+        0xf602c100,
+        0x04bd0002,
+        0x02830080,
         0xbd0002f6,
-        0x01004104,
-        0xfa0613f0,
-        0x03f80501,
+        0x7e070f04,
+        0x80000718,
+        0xf602c000,
+        0x04bd0002,
+        0xf0000bfe,
+        0x24b61f2a,
+        0x0220b604,
         0x99f094bd,
-        0x17008009,
+        0x37008008,
         0x0009f602,
-        0x94bd04bd,
-        0x800599f0,
+        0x008004bd,
+        0x02f60281,
+        0xd204bd00,
+        0x80000000,
+        0x800225f0,
+        0xf6028800,
+        0x04bd0002,
+        0x00421001,
+        0x0223f002,
+        0xf80512fa,
+        0xf094bd03,
+        0x00800899,
+        0x09f60217,
+        0x9804bd00,
+        0x14b68101,
+        0x80029818,
+        0xfd0825b6,
+        0x01b50512,
+        0xf094bd16,
+        0x00800999,
+        0x09f60237,
+        0x8004bd00,
+        0xf6028100,
+        0x04bd0001,
+        0x00800102,
+        0x02f60288,
+        0x4104bd00,
+        0x13f00100,
+        0x0501fa06,
+        0x94bd03f8,
+        0x800999f0,
         0xf6021700,
         0x04bd0009,
-/* 0x07d6: ctx_chan */
-        0xea7e00f8,
-        0x0c0a0006,
-        0x0000b87e,
-        0xd27e050f,
-        0x00f80006,
-/* 0x07e8: ctx_mmio_exec */
-        0x80410398,
+        0x99f094bd,
+        0x17008005,
+        0x0009f602,
+        0x00f804bd,
+/* 0x081c: ctx_chan */
+        0x0007307e,
+        0xb87e0c0a,
+        0x050f0000,
+        0x0007187e,
+/* 0x082e: ctx_mmio_exec */
+        0x039800f8,
+        0x81008041,
+        0x0003f602,
+        0x34bd04bd,
+/* 0x083c: ctx_mmio_loop */
+        0xf4ff34c4,
+        0x00450e1b,
+        0x0653f002,
+        0xf80535fa,
+/* 0x084d: ctx_mmio_pull */
+        0x804e9803,
+        0x7e814f98,
+        0xb600008f,
+        0x12b60830,
+        0xdf1bf401,
+/* 0x0860: ctx_mmio_done */
+        0x80160398,
         0xf6028100,
         0x04bd0003,
-/* 0x07f6: ctx_mmio_loop */
-        0x34c434bd,
-        0x0e1bf4ff,
-        0xf0020045,
-        0x35fa0653,
-/* 0x0807: ctx_mmio_pull */
-        0x9803f805,
-        0x4f98804e,
-        0x008f7e81,
-        0x0830b600,
-        0xf40112b6,
-/* 0x081a: ctx_mmio_done */
-        0x0398df1b,
-        0x81008016,
-        0x0003f602,
-        0x00b504bd,
-        0x01004140,
-        0xfa0613f0,
-        0x03f80601,
-/* 0x0836: ctx_xfer */
-        0x040e00f8,
-        0x03020080,
-        0xbd000ef6,
-/* 0x0841: ctx_xfer_idle */
-        0x00008e04,
-        0x00eecf03,
-        0x2000e4f1,
-        0xf4f51bf4,
-        0x02f40611,
-/* 0x0855: ctx_xfer_pre */
-        0x7e100f0c,
-        0xf40006b3,
-/* 0x085e: ctx_xfer_pre_load */
-        0x020f1b11,
-        0x0006627e,
-        0x0006717e,
-        0x0006837e,
-        0x627ef4bd,
-        0xea7e0006,
-/* 0x0876: ctx_xfer_exec */
-        0x01980006,
-        0x8024bd16,
-        0xf6010500,
-        0x04bd0002,
-        0x008e1fb2,
-        0x8f7e41a5,
-        0xfcf00000,
-        0x022cf001,
-        0xfd0124b6,
-        0xffb205f2,
-        0x41a5048e,
+        0x414000b5,
+        0x13f00100,
+        0x0601fa06,
+        0x00f803f8,
+/* 0x087c: ctx_xfer */
+        0x0080040e,
+        0x0ef60302,
+/* 0x0887: ctx_xfer_idle */
+        0x8e04bd00,
+        0xcf030000,
+        0xe4f100ee,
+        0x1bf42000,
+        0x0611f4f5,
+/* 0x089b: ctx_xfer_pre */
+        0x0f0c02f4,
+        0x06f97e10,
+        0x1b11f400,
+/* 0x08a4: ctx_xfer_pre_load */
+        0xa87e020f,
+        0xb77e0006,
+        0xc97e0006,
+        0xf4bd0006,
+        0x0006a87e,
+        0x0007307e,
+/* 0x08bc: ctx_xfer_exec */
+        0xbd160198,
+        0x05008024,
+        0x0002f601,
+        0x1fb204bd,
+        0x41a5008e,
         0x00008f7e,
-        0x0002167e,
-        0xfc8024bd,
-        0x02f60247,
-        0xf004bd00,
-        0x20b6012c,
-        0x4afc8003,
-        0x0002f602,
-        0xacf004bd,
-        0x06a5f001,
-        0x0c98000b,
-        0x010d9800,
-        0x3d7e000e,
-        0x080a0001,
-        0x0000ec7e,
-        0x00020a7e,
-        0x0a1201f4,
-        0x00b87e0c,
-        0x7e050f00,
-        0xf40006d2,
-/* 0x08f2: ctx_xfer_post */
-        0x020f2d02,
-        0x0006627e,
-        0xb37ef4bd,
-        0x277e0006,
-        0x717e0002,
+        0xf001fcf0,
+        0x24b6022c,
+        0x05f2fd01,
+        0x048effb2,
+        0x8f7e41a5,
+        0x167e0000,
+        0x24bd0002,
+        0x0247fc80,
+        0xbd0002f6,
+        0x012cf004,
+        0x800320b6,
+        0xf6024afc,
+        0x04bd0002,
+        0xf001acf0,
+        0x000b06a5,
+        0x98000c98,
+        0x000e010d,
+        0x00013d7e,
+        0xec7e080a,
+        0x0a7e0000,
+        0x01f40002,
+        0x7e0c0a12,
+        0x0f0000b8,
+        0x07187e05,
+        0x2d02f400,
+/* 0x0938: ctx_xfer_post */
+        0xa87e020f,
         0xf4bd0006,
-        0x0006627e,
-        0x981011f4,
-        0x11fd4001,
-        0x070bf405,
-        0x0007e87e,
-/* 0x091c: ctx_xfer_no_post_mmio */
-/* 0x091c: ctx_xfer_done */
-        0x000000f8,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
+        0x0006f97e,
+        0x0002277e,
+        0x0006b77e,
+        0xa87ef4bd,
+        0x11f40006,
+        0x40019810,
+        0xf40511fd,
+        0x2e7e070b,
+/* 0x0962: ctx_xfer_no_post_mmio */
+/* 0x0962: ctx_xfer_done */
+        0x00f80008,
         0x00000000,
         0x00000000,
         0x00000000,
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnv108.fuc5.h b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnv108.fuc5.h
index 64dfd75192bf..e49b5a877ae4 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnv108.fuc5.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnv108.fuc5.h
@@ -478,10 +478,10 @@ uint32_t nv108_grhub_code[] = {
         0x01040080,
         0xbd0001f6,
         0x01004104,
-        0x627e020f,
-        0x717e0006,
+        0xa87e020f,
+        0xb77e0006,
         0x100f0006,
-        0x0006b37e,
+        0x0006f97e,
         0x98000e98,
         0x207e010f,
         0x14950001,
@@ -523,8 +523,8 @@ uint32_t nv108_grhub_code[] = {
         0x800040b7,
         0xf40132b6,
         0x000fb41b,
-        0x0006b37e,
-        0x627e000f,
+        0x0006f97e,
+        0xa87e000f,
         0x00800006,
         0x01f60201,
         0xbd04bd00,
@@ -554,7 +554,7 @@ uint32_t nv108_grhub_code[] = {
         0x0009f602,
         0x32f404bd,
         0x0231f401,
-        0x0008367e,
+        0x00087c7e,
         0x99f094bd,
         0x17008007,
         0x0009f602,
@@ -563,7 +563,7 @@ uint32_t nv108_grhub_code[] = {
         0x37008006,
         0x0009f602,
         0x31f404bd,
-        0x08367e01,
+        0x087c7e01,
         0xf094bd00,
         0x00800699,
         0x09f60217,
@@ -572,7 +572,7 @@ uint32_t nv108_grhub_code[] = {
         0x20f92f0e,
         0x32f412b2,
         0x0232f401,
-        0x0008367e,
+        0x00087c7e,
         0x008020fc,
         0x02f602c0,
         0xf404bd00,
@@ -580,7 +580,7 @@ uint32_t nv108_grhub_code[] = {
         0x23c8130e,
         0x0d0bf41f,
         0xf40131f4,
-        0x367e0232,
+        0x7c7e0232,
 /* 0x054e: chsw_done */
         0x01020008,
         0x02c30080,
@@ -593,7 +593,7 @@ uint32_t nv108_grhub_code[] = {
         0xb0ff2a0e,
         0x1bf401e4,
         0x7ef2b20c,
-        0xf40007d6,
+        0xf400081c,
 /* 0x057a: main_not_ctx_chan */
         0xe4b0400e,
         0x2c1bf402,
@@ -602,7 +602,7 @@ uint32_t nv108_grhub_code[] = {
         0x0009f602,
         0x32f404bd,
         0x0232f401,
-        0x0008367e,
+        0x00087c7e,
         0x99f094bd,
         0x17008007,
         0x0009f602,
@@ -642,238 +642,238 @@ uint32_t nv108_grhub_code[] = {
 /* 0x061a: ih_no_ctxsw */
         0xabe40000,
         0x0bf40400,
-        0x01004b10,
-        0x448ebfb2,
-        0x8f7e4001,
-/* 0x062e: ih_no_fwmthd */
-        0x044b0000,
-        0xffb0bd01,
-        0x0bf4b4ab,
-        0x0700800c,
-        0x000bf603,
-/* 0x0642: ih_no_other */
-        0x004004bd,
-        0x000af601,
-        0xf0fc04bd,
-        0xd0fce0fc,
-        0xa0fcb0fc,
-        0x80fc90fc,
-        0xfc0088fe,
-        0x0032f480,
-/* 0x0662: ctx_4170s */
-        0xf5f001f8,
-        0x8effb210,
-        0x7e404170,
-        0xf800008f,
-/* 0x0671: ctx_4170w */
-        0x41708e00,
+        0x07088e56,
         0x00657e40,
-        0xf0ffb200,
-        0x1bf410f4,
-/* 0x0683: ctx_redswitch */
-        0x4e00f8f3,
-        0xe5f00200,
-        0x20e5f040,
-        0x8010e5f0,
-        0xf6018500,
-        0x04bd000e,
-/* 0x069a: ctx_redswitch_delay */
-        0xf2b6080f,
-        0xfd1bf401,
-        0x0400e5f1,
-        0x0100e5f1,
-        0x01850080,
-        0xbd000ef6,
-/* 0x06b3: ctx_86c */
-        0x8000f804,
-        0xf6022300,
+        0x80ffb200,
+        0xf6020400,
         0x04bd000f,
-        0x148effb2,
-        0x8f7e408a,
-        0xffb20000,
-        0x41a88c8e,
+        0x4007048e,
+        0x0000657e,
+        0x0080ffb2,
+        0x0ff60203,
+        0xc704bd00,
+        0xee9450fe,
+        0x07008f02,
+        0x00efbb40,
+        0x0000657e,
+        0x02020080,
+        0xbd000ff6,
+        0x7e030f04,
+        0x4b0002f8,
+        0xbfb20100,
+        0x4001448e,
         0x00008f7e,
-/* 0x06d2: ctx_mem */
-        0x008000f8,
-        0x0ff60284,
-/* 0x06db: ctx_mem_wait */
-        0x8f04bd00,
-        0xcf028400,
-        0xfffd00ff,
-        0xf61bf405,
-/* 0x06ea: ctx_load */
-        0x94bd00f8,
-        0x800599f0,
-        0xf6023700,
-        0x04bd0009,
-        0xb87e0c0a,
-        0xf4bd0000,
-        0x02890080,
+/* 0x0674: ih_no_fwmthd */
+        0xbd05044b,
+        0xb4abffb0,
+        0x800c0bf4,
+        0xf6030700,
+        0x04bd000b,
+/* 0x0688: ih_no_other */
+        0xf6010040,
+        0x04bd000a,
+        0xe0fcf0fc,
+        0xb0fcd0fc,
+        0x90fca0fc,
+        0x88fe80fc,
+        0xf480fc00,
+        0x01f80032,
+/* 0x06a8: ctx_4170s */
+        0xb210f5f0,
+        0x41708eff,
+        0x008f7e40,
+/* 0x06b7: ctx_4170w */
+        0x8e00f800,
+        0x7e404170,
+        0xb2000065,
+        0x10f4f0ff,
+        0xf8f31bf4,
+/* 0x06c9: ctx_redswitch */
+        0x02004e00,
+        0xf040e5f0,
+        0xe5f020e5,
+        0x85008010,
+        0x000ef601,
+        0x080f04bd,
+/* 0x06e0: ctx_redswitch_delay */
+        0xf401f2b6,
+        0xe5f1fd1b,
+        0xe5f10400,
+        0x00800100,
+        0x0ef60185,
+        0xf804bd00,
+/* 0x06f9: ctx_86c */
+        0x23008000,
+        0x000ff602,
+        0xffb204bd,
+        0x408a148e,
+        0x00008f7e,
+        0x8c8effb2,
+        0x8f7e41a8,
+        0x00f80000,
+/* 0x0718: ctx_mem */
+        0x02840080,
         0xbd000ff6,
-        0xc1008004,
-        0x0002f602,
-        0x008004bd,
-        0x02f60283,
-        0x0f04bd00,
-        0x06d27e07,
-        0xc0008000,
-        0x0002f602,
-        0x0bfe04bd,
-        0x1f2af000,
-        0xb60424b6,
-        0x94bd0220,
-        0x800899f0,
-        0xf6023700,
-        0x04bd0009,
-        0x02810080,
-        0xbd0002f6,
-        0x0000d204,
-        0x25f08000,
-        0x88008002,
-        0x0002f602,
-        0x100104bd,
-        0xf0020042,
-        0x12fa0223,
-        0xbd03f805,
-        0x0899f094,
-        0x02170080,
-        0xbd0009f6,
-        0x81019804,
-        0x981814b6,
-        0x25b68002,
-        0x0512fd08,
-        0xbd1601b5,
-        0x0999f094,
-        0x02370080,
-        0xbd0009f6,
-        0x81008004,
-        0x0001f602,
-        0x010204bd,
-        0x02880080,
+/* 0x0721: ctx_mem_wait */
+        0x84008f04,
+        0x00ffcf02,
+        0xf405fffd,
+        0x00f8f61b,
+/* 0x0730: ctx_load */
+        0x99f094bd,
+        0x37008005,
+        0x0009f602,
+        0x0c0a04bd,
+        0x0000b87e,
+        0x0080f4bd,
+        0x0ff60289,
+        0x8004bd00,
+        0xf602c100,
+        0x04bd0002,
+        0x02830080,
         0xbd0002f6,
-        0x01004104,
-        0xfa0613f0,
-        0x03f80501,
+        0x7e070f04,
+        0x80000718,
+        0xf602c000,
+        0x04bd0002,
+        0xf0000bfe,
+        0x24b61f2a,
+        0x0220b604,
         0x99f094bd,
-        0x17008009,
+        0x37008008,
         0x0009f602,
-        0x94bd04bd,
-        0x800599f0,
+        0x008004bd,
+        0x02f60281,
+        0xd204bd00,
+        0x80000000,
+        0x800225f0,
+        0xf6028800,
+        0x04bd0002,
+        0x00421001,
+        0x0223f002,
+        0xf80512fa,
+        0xf094bd03,
+        0x00800899,
+        0x09f60217,
+        0x9804bd00,
+        0x14b68101,
+        0x80029818,
+        0xfd0825b6,
+        0x01b50512,
+        0xf094bd16,
+        0x00800999,
+        0x09f60237,
+        0x8004bd00,
+        0xf6028100,
+        0x04bd0001,
+        0x00800102,
+        0x02f60288,
+        0x4104bd00,
+        0x13f00100,
+        0x0501fa06,
+        0x94bd03f8,
+        0x800999f0,
         0xf6021700,
         0x04bd0009,
-/* 0x07d6: ctx_chan */
-        0xea7e00f8,
-        0x0c0a0006,
-        0x0000b87e,
-        0xd27e050f,
-        0x00f80006,
-/* 0x07e8: ctx_mmio_exec */
-        0x80410398,
+        0x99f094bd,
+        0x17008005,
+        0x0009f602,
+        0x00f804bd,
+/* 0x081c: ctx_chan */
+        0x0007307e,
+        0xb87e0c0a,
+        0x050f0000,
+        0x0007187e,
+/* 0x082e: ctx_mmio_exec */
+        0x039800f8,
+        0x81008041,
+        0x0003f602,
+        0x34bd04bd,
+/* 0x083c: ctx_mmio_loop */
+        0xf4ff34c4,
+        0x00450e1b,
+        0x0653f002,
+        0xf80535fa,
+/* 0x084d: ctx_mmio_pull */
+        0x804e9803,
+        0x7e814f98,
+        0xb600008f,
+        0x12b60830,
+        0xdf1bf401,
+/* 0x0860: ctx_mmio_done */
+        0x80160398,
         0xf6028100,
         0x04bd0003,
-/* 0x07f6: ctx_mmio_loop */
-        0x34c434bd,
-        0x0e1bf4ff,
-        0xf0020045,
-        0x35fa0653,
-/* 0x0807: ctx_mmio_pull */
-        0x9803f805,
-        0x4f98804e,
-        0x008f7e81,
-        0x0830b600,
-        0xf40112b6,
-/* 0x081a: ctx_mmio_done */
-        0x0398df1b,
-        0x81008016,
-        0x0003f602,
-        0x00b504bd,
-        0x01004140,
-        0xfa0613f0,
-        0x03f80601,
-/* 0x0836: ctx_xfer */
-        0x040e00f8,
-        0x03020080,
-        0xbd000ef6,
-/* 0x0841: ctx_xfer_idle */
-        0x00008e04,
-        0x00eecf03,
-        0x2000e4f1,
-        0xf4f51bf4,
-        0x02f40611,
-/* 0x0855: ctx_xfer_pre */
-        0x7e100f0c,
-        0xf40006b3,
-/* 0x085e: ctx_xfer_pre_load */
-        0x020f1b11,
-        0x0006627e,
-        0x0006717e,
-        0x0006837e,
-        0x627ef4bd,
-        0xea7e0006,
-/* 0x0876: ctx_xfer_exec */
-        0x01980006,
-        0x8024bd16,
-        0xf6010500,
-        0x04bd0002,
-        0x008e1fb2,
-        0x8f7e41a5,
-        0xfcf00000,
-        0x022cf001,
-        0xfd0124b6,
-        0xffb205f2,
-        0x41a5048e,
+        0x414000b5,
+        0x13f00100,
+        0x0601fa06,
+        0x00f803f8,
+/* 0x087c: ctx_xfer */
+        0x0080040e,
+        0x0ef60302,
+/* 0x0887: ctx_xfer_idle */
+        0x8e04bd00,
+        0xcf030000,
+        0xe4f100ee,
+        0x1bf42000,
+        0x0611f4f5,
+/* 0x089b: ctx_xfer_pre */
+        0x0f0c02f4,
+        0x06f97e10,
+        0x1b11f400,
+/* 0x08a4: ctx_xfer_pre_load */
+        0xa87e020f,
+        0xb77e0006,
+        0xc97e0006,
+        0xf4bd0006,
+        0x0006a87e,
+        0x0007307e,
+/* 0x08bc: ctx_xfer_exec */
+        0xbd160198,
+        0x05008024,
+        0x0002f601,
+        0x1fb204bd,
+        0x41a5008e,
         0x00008f7e,
-        0x0002167e,
-        0xfc8024bd,
-        0x02f60247,
-        0xf004bd00,
-        0x20b6012c,
-        0x4afc8003,
-        0x0002f602,
-        0xacf004bd,
-        0x06a5f001,
-        0x0c98000b,
-        0x010d9800,
-        0x3d7e000e,
-        0x080a0001,
-        0x0000ec7e,
-        0x00020a7e,
-        0x0a1201f4,
-        0x00b87e0c,
-        0x7e050f00,
-        0xf40006d2,
-/* 0x08f2: ctx_xfer_post */
-        0x020f2d02,
-        0x0006627e,
-        0xb37ef4bd,
-        0x277e0006,
-        0x717e0002,
+        0xf001fcf0,
+        0x24b6022c,
+        0x05f2fd01,
+        0x048effb2,
+        0x8f7e41a5,
+        0x167e0000,
+        0x24bd0002,
+        0x0247fc80,
+        0xbd0002f6,
+        0x012cf004,
+        0x800320b6,
+        0xf6024afc,
+        0x04bd0002,
+        0xf001acf0,
+        0x000b06a5,
+        0x98000c98,
+        0x000e010d,
+        0x00013d7e,
+        0xec7e080a,
+        0x0a7e0000,
+        0x01f40002,
+        0x7e0c0a12,
+        0x0f0000b8,
+        0x07187e05,
+        0x2d02f400,
+/* 0x0938: ctx_xfer_post */
+        0xa87e020f,
         0xf4bd0006,
-        0x0006627e,
-        0x981011f4,
-        0x11fd4001,
-        0x070bf405,
-        0x0007e87e,
-/* 0x091c: ctx_xfer_no_post_mmio */
-/* 0x091c: ctx_xfer_done */
-        0x000000f8,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
-        0x00000000,
+        0x0006f97e,
+        0x0002277e,
+        0x0006b77e,
+        0xa87ef4bd,
+        0x11f40006,
+        0x40019810,
+        0xf40511fd,
+        0x2e7e070b,
+/* 0x0962: ctx_xfer_no_post_mmio */
+/* 0x0962: ctx_xfer_done */
+        0x00f80008,
         0x00000000,
         0x00000000,
         0x00000000,
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvc0.fuc.h b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvc0.fuc.h
index f8f7b278a13f..92dfe6a4ac87 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvc0.fuc.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvc0.fuc.h
@@ -528,10 +528,10 @@ uint32_t nvc0_grhub_code[] = {
         0x0001d001,
         0x17f104bd,
         0xf7f00100,
-        0xb521f502,
-        0xc721f507,
-        0x10f7f007,
-        0x081421f5,
+        0x0d21f502,
+        0x1f21f508,
+        0x10f7f008,
+        0x086c21f5,
         0x98000e98,
         0x21f5010f,
         0x14950150,
@@ -574,9 +574,9 @@ uint32_t nvc0_grhub_code[] = {
         0xb6800040,
         0x1bf40132,
         0x00f7f0be,
-        0x081421f5,
+        0x086c21f5,
         0xf500f7f0,
-        0xf107b521,
+        0xf1080d21,
         0xf0010007,
         0x01d00203,
         0xbd04bd00,
@@ -610,8 +610,8 @@ uint32_t nvc0_grhub_code[] = {
         0x09d00203,
         0xf404bd00,
         0x31f40132,
-        0xe821f502,
-        0xf094bd09,
+        0x4021f502,
+        0xf094bd0a,
         0x07f10799,
         0x03f01700,
         0x0009d002,
@@ -621,7 +621,7 @@ uint32_t nvc0_grhub_code[] = {
         0x0203f00f,
         0xbd0009d0,
         0x0131f404,
-        0x09e821f5,
+        0x0a4021f5,
         0x99f094bd,
         0x0007f106,
         0x0203f017,
@@ -631,7 +631,7 @@ uint32_t nvc0_grhub_code[] = {
         0x12b920f9,
         0x0132f402,
         0xf50232f4,
-        0xfc09e821,
+        0xfc0a4021,
         0x0007f120,
         0x0203f0c0,
         0xbd0002d0,
@@ -640,7 +640,7 @@ uint32_t nvc0_grhub_code[] = {
         0xf41f23c8,
         0x31f40d0b,
         0x0232f401,
-        0x09e821f5,
+        0x0a4021f5,
 /* 0x063c: chsw_done */
         0xf10127f0,
         0xf0c30007,
@@ -654,7 +654,7 @@ uint32_t nvc0_grhub_code[] = {
 /* 0x0660: main_not_ctx_switch */
         0xf401e4b0,
         0xf2b90d1b,
-        0x7821f502,
+        0xd021f502,
         0x460ef409,
 /* 0x0670: main_not_ctx_chan */
         0xf402e4b0,
@@ -664,8 +664,8 @@ uint32_t nvc0_grhub_code[] = {
         0x09d00203,
         0xf404bd00,
         0x32f40132,
-        0xe821f502,
-        0xf094bd09,
+        0x4021f502,
+        0xf094bd0a,
         0x07f10799,
         0x03f01700,
         0x0009d002,
@@ -710,18 +710,40 @@ uint32_t nvc0_grhub_code[] = {
 /* 0x072b: ih_no_ctxsw */
         0xe40421f4,
         0xf40400ab,
-        0xb7f1140b,
+        0xe7f16c0b,
+        0xe3f00708,
+        0x6821f440,
+        0xf102ffb9,
+        0xf0040007,
+        0x0fd00203,
+        0xf104bd00,
+        0xf00704e7,
+        0x21f440e3,
+        0x02ffb968,
+        0x030007f1,
+        0xd00203f0,
+        0x04bd000f,
+        0x9450fec7,
+        0xf7f102ee,
+        0xf3f00700,
+        0x00efbb40,
+        0xf16821f4,
+        0xf0020007,
+        0x0fd00203,
+        0xf004bd00,
+        0x21f503f7,
+        0xb7f1037e,
         0xbfb90100,
         0x44e7f102,
         0x40e3f001,
-/* 0x0743: ih_no_fwmthd */
+/* 0x079b: ih_no_fwmthd */
         0xf19d21f4,
-        0xbd0104b7,
+        0xbd0504b7,
         0xb4abffb0,
         0xf10f0bf4,
         0xf0070007,
         0x0bd00303,
-/* 0x075b: ih_no_other */
+/* 0x07b3: ih_no_other */
         0xf104bd00,
         0xf0010007,
         0x0ad00003,
@@ -731,36 +753,36 @@ uint32_t nvc0_grhub_code[] = {
         0xfc90fca0,
         0x0088fe80,
         0x32f480fc,
-/* 0x077f: ctx_4160s */
+/* 0x07d7: ctx_4160s */
         0xf001f800,
         0xffb901f7,
         0x60e7f102,
         0x40e3f041,
-/* 0x078f: ctx_4160s_wait */
+/* 0x07e7: ctx_4160s_wait */
         0xf19d21f4,
         0xf04160e7,
         0x21f440e3,
         0x02ffb968,
         0xf404ffc8,
         0x00f8f00b,
-/* 0x07a4: ctx_4160c */
+/* 0x07fc: ctx_4160c */
         0xffb9f4bd,
         0x60e7f102,
         0x40e3f041,
         0xf89d21f4,
-/* 0x07b5: ctx_4170s */
+/* 0x080d: ctx_4170s */
         0x10f5f000,
         0xf102ffb9,
         0xf04170e7,
         0x21f440e3,
-/* 0x07c7: ctx_4170w */
+/* 0x081f: ctx_4170w */
         0xf100f89d,
         0xf04170e7,
         0x21f440e3,
         0x02ffb968,
         0xf410f4f0,
         0x00f8f01b,
-/* 0x07dc: ctx_redswitch */
+/* 0x0834: ctx_redswitch */
         0x0200e7f1,
         0xf040e5f0,
         0xe5f020e5,
@@ -768,7 +790,7 @@ uint32_t nvc0_grhub_code[] = {
         0x0103f085,
         0xbd000ed0,
         0x08f7f004,
-/* 0x07f8: ctx_redswitch_delay */
+/* 0x0850: ctx_redswitch_delay */
         0xf401f2b6,
         0xe5f1fd1b,
         0xe5f10400,
@@ -776,7 +798,7 @@ uint32_t nvc0_grhub_code[] = {
         0x03f08500,
         0x000ed001,
         0x00f804bd,
-/* 0x0814: ctx_86c */
+/* 0x086c: ctx_86c */
         0x1b0007f1,
         0xd00203f0,
         0x04bd000f,
@@ -787,16 +809,16 @@ uint32_t nvc0_grhub_code[] = {
         0xa86ce7f1,
         0xf441e3f0,
         0x00f89d21,
-/* 0x083c: ctx_mem */
+/* 0x0894: ctx_mem */
         0x840007f1,
         0xd00203f0,
         0x04bd000f,
-/* 0x0848: ctx_mem_wait */
+/* 0x08a0: ctx_mem_wait */
         0x8400f7f1,
         0xcf02f3f0,
         0xfffd00ff,
         0xf31bf405,
-/* 0x085a: ctx_load */
+/* 0x08b2: ctx_load */
         0x94bd00f8,
         0xf10599f0,
         0xf00f0007,
@@ -814,7 +836,7 @@ uint32_t nvc0_grhub_code[] = {
         0x02d00203,
         0xf004bd00,
         0x21f507f7,
-        0x07f1083c,
+        0x07f10894,
         0x03f0c000,
         0x0002d002,
         0x0bfe04bd,
@@ -869,31 +891,31 @@ uint32_t nvc0_grhub_code[] = {
         0x03f01700,
         0x0009d002,
         0x00f804bd,
-/* 0x0978: ctx_chan */
-        0x077f21f5,
-        0x085a21f5,
+/* 0x09d0: ctx_chan */
+        0x07d721f5,
+        0x08b221f5,
         0xf40ca7f0,
         0xf7f0d021,
-        0x3c21f505,
-        0xa421f508,
-/* 0x0993: ctx_mmio_exec */
+        0x9421f505,
+        0xfc21f508,
+/* 0x09eb: ctx_mmio_exec */
         0x9800f807,
         0x07f14103,
         0x03f08100,
         0x0003d002,
         0x34bd04bd,
-/* 0x09a4: ctx_mmio_loop */
+/* 0x09fc: ctx_mmio_loop */
         0xf4ff34c4,
         0x57f10f1b,
         0x53f00200,
         0x0535fa06,
-/* 0x09b6: ctx_mmio_pull */
+/* 0x0a0e: ctx_mmio_pull */
         0x4e9803f8,
         0x814f9880,
         0xb69d21f4,
         0x12b60830,
         0xdf1bf401,
-/* 0x09c8: ctx_mmio_done */
+/* 0x0a20: ctx_mmio_done */
         0xf1160398,
         0xf0810007,
         0x03d00203,
@@ -902,30 +924,30 @@ uint32_t nvc0_grhub_code[] = {
         0x13f00100,
         0x0601fa06,
         0x00f803f8,
-/* 0x09e8: ctx_xfer */
+/* 0x0a40: ctx_xfer */
         0xf104e7f0,
         0xf0020007,
         0x0ed00303,
-/* 0x09f7: ctx_xfer_idle */
+/* 0x0a4f: ctx_xfer_idle */
         0xf104bd00,
         0xf00000e7,
         0xeecf03e3,
         0x00e4f100,
         0xf21bf420,
         0xf40611f4,
-/* 0x0a0e: ctx_xfer_pre */
+/* 0x0a66: ctx_xfer_pre */
         0xf7f01102,
-        0x1421f510,
-        0x7f21f508,
+        0x6c21f510,
+        0xd721f508,
         0x1c11f407,
-/* 0x0a1c: ctx_xfer_pre_load */
+/* 0x0a74: ctx_xfer_pre_load */
         0xf502f7f0,
-        0xf507b521,
-        0xf507c721,
-        0xbd07dc21,
-        0xb521f5f4,
-        0x5a21f507,
-/* 0x0a35: ctx_xfer_exec */
+        0xf5080d21,
+        0xf5081f21,
+        0xbd083421,
+        0x0d21f5f4,
+        0xb221f508,
+/* 0x0a8d: ctx_xfer_exec */
         0x16019808,
         0x07f124bd,
         0x03f00500,
@@ -960,23 +982,65 @@ uint32_t nvc0_grhub_code[] = {
         0x1301f402,
         0xf40ca7f0,
         0xf7f0d021,
-        0x3c21f505,
+        0x9421f505,
         0x3202f408,
-/* 0x0ac4: ctx_xfer_post */
+/* 0x0b1c: ctx_xfer_post */
         0xf502f7f0,
-        0xbd07b521,
-        0x1421f5f4,
+        0xbd080d21,
+        0x6c21f5f4,
         0x7f21f508,
-        0xc721f502,
-        0xf5f4bd07,
-        0xf407b521,
+        0x1f21f502,
+        0xf5f4bd08,
+        0xf4080d21,
         0x01981011,
         0x0511fd40,
         0xf5070bf4,
-/* 0x0aef: ctx_xfer_no_post_mmio */
-        0xf5099321,
-/* 0x0af3: ctx_xfer_done */
-        0xf807a421,
+/* 0x0b47: ctx_xfer_no_post_mmio */
+        0xf509eb21,
+/* 0x0b4b: ctx_xfer_done */
+        0xf807fc21,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
         0x00000000,
         0x00000000,
         0x00000000,
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvd7.fuc.h b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvd7.fuc.h
index 624215a005b0..62b0c7601d8b 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvd7.fuc.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvd7.fuc.h
@@ -528,10 +528,10 @@ uint32_t nvd7_grhub_code[] = {
         0x0001d001,
         0x17f104bd,
         0xf7f00100,
-        0xb521f502,
-        0xc721f507,
-        0x10f7f007,
-        0x081421f5,
+        0x0d21f502,
+        0x1f21f508,
+        0x10f7f008,
+        0x086c21f5,
         0x98000e98,
         0x21f5010f,
         0x14950150,
@@ -574,9 +574,9 @@ uint32_t nvd7_grhub_code[] = {
         0xb6800040,
         0x1bf40132,
         0x00f7f0be,
-        0x081421f5,
+        0x086c21f5,
         0xf500f7f0,
-        0xf107b521,
+        0xf1080d21,
         0xf0010007,
         0x01d00203,
         0xbd04bd00,
@@ -610,8 +610,8 @@ uint32_t nvd7_grhub_code[] = {
         0x09d00203,
         0xf404bd00,
         0x31f40132,
-        0xe821f502,
-        0xf094bd09,
+        0x4021f502,
+        0xf094bd0a,
         0x07f10799,
         0x03f01700,
         0x0009d002,
@@ -621,7 +621,7 @@ uint32_t nvd7_grhub_code[] = {
         0x0203f00f,
         0xbd0009d0,
         0x0131f404,
-        0x09e821f5,
+        0x0a4021f5,
         0x99f094bd,
         0x0007f106,
         0x0203f017,
@@ -631,7 +631,7 @@ uint32_t nvd7_grhub_code[] = {
         0x12b920f9,
         0x0132f402,
         0xf50232f4,
-        0xfc09e821,
+        0xfc0a4021,
         0x0007f120,
         0x0203f0c0,
         0xbd0002d0,
@@ -640,7 +640,7 @@ uint32_t nvd7_grhub_code[] = {
         0xf41f23c8,
         0x31f40d0b,
         0x0232f401,
-        0x09e821f5,
+        0x0a4021f5,
 /* 0x063c: chsw_done */
         0xf10127f0,
         0xf0c30007,
@@ -654,7 +654,7 @@ uint32_t nvd7_grhub_code[] = {
 /* 0x0660: main_not_ctx_switch */
         0xf401e4b0,
         0xf2b90d1b,
-        0x7821f502,
+        0xd021f502,
         0x460ef409,
 /* 0x0670: main_not_ctx_chan */
         0xf402e4b0,
@@ -664,8 +664,8 @@ uint32_t nvd7_grhub_code[] = {
         0x09d00203,
         0xf404bd00,
         0x32f40132,
-        0xe821f502,
-        0xf094bd09,
+        0x4021f502,
+        0xf094bd0a,
         0x07f10799,
         0x03f01700,
         0x0009d002,
@@ -710,18 +710,40 @@ uint32_t nvd7_grhub_code[] = {
 /* 0x072b: ih_no_ctxsw */
         0xe40421f4,
         0xf40400ab,
-        0xb7f1140b,
+        0xe7f16c0b,
+        0xe3f00708,
+        0x6821f440,
+        0xf102ffb9,
+        0xf0040007,
+        0x0fd00203,
+        0xf104bd00,
+        0xf00704e7,
+        0x21f440e3,
+        0x02ffb968,
+        0x030007f1,
+        0xd00203f0,
+        0x04bd000f,
+        0x9450fec7,
+        0xf7f102ee,
+        0xf3f00700,
+        0x00efbb40,
+        0xf16821f4,
+        0xf0020007,
+        0x0fd00203,
+        0xf004bd00,
+        0x21f503f7,
+        0xb7f1037e,
         0xbfb90100,
         0x44e7f102,
         0x40e3f001,
-/* 0x0743: ih_no_fwmthd */
+/* 0x079b: ih_no_fwmthd */
         0xf19d21f4,
-        0xbd0104b7,
+        0xbd0504b7,
         0xb4abffb0,
         0xf10f0bf4,
         0xf0070007,
         0x0bd00303,
-/* 0x075b: ih_no_other */
+/* 0x07b3: ih_no_other */
         0xf104bd00,
         0xf0010007,
         0x0ad00003,
@@ -731,36 +753,36 @@ uint32_t nvd7_grhub_code[] = {
         0xfc90fca0,
         0x0088fe80,
         0x32f480fc,
-/* 0x077f: ctx_4160s */
+/* 0x07d7: ctx_4160s */
         0xf001f800,
         0xffb901f7,
         0x60e7f102,
         0x40e3f041,
-/* 0x078f: ctx_4160s_wait */
+/* 0x07e7: ctx_4160s_wait */
         0xf19d21f4,
         0xf04160e7,
         0x21f440e3,
         0x02ffb968,
         0xf404ffc8,
         0x00f8f00b,
-/* 0x07a4: ctx_4160c */
+/* 0x07fc: ctx_4160c */
         0xffb9f4bd,
         0x60e7f102,
         0x40e3f041,
         0xf89d21f4,
-/* 0x07b5: ctx_4170s */
+/* 0x080d: ctx_4170s */
         0x10f5f000,
         0xf102ffb9,
         0xf04170e7,
         0x21f440e3,
-/* 0x07c7: ctx_4170w */
+/* 0x081f: ctx_4170w */
         0xf100f89d,
         0xf04170e7,
         0x21f440e3,
         0x02ffb968,
         0xf410f4f0,
         0x00f8f01b,
-/* 0x07dc: ctx_redswitch */
+/* 0x0834: ctx_redswitch */
         0x0200e7f1,
         0xf040e5f0,
         0xe5f020e5,
@@ -768,7 +790,7 @@ uint32_t nvd7_grhub_code[] = {
         0x0103f085,
         0xbd000ed0,
         0x08f7f004,
-/* 0x07f8: ctx_redswitch_delay */
+/* 0x0850: ctx_redswitch_delay */
         0xf401f2b6,
         0xe5f1fd1b,
         0xe5f10400,
@@ -776,7 +798,7 @@ uint32_t nvd7_grhub_code[] = {
         0x03f08500,
         0x000ed001,
         0x00f804bd,
-/* 0x0814: ctx_86c */
+/* 0x086c: ctx_86c */
         0x1b0007f1,
         0xd00203f0,
         0x04bd000f,
@@ -787,16 +809,16 @@ uint32_t nvd7_grhub_code[] = {
         0xa86ce7f1,
         0xf441e3f0,
         0x00f89d21,
-/* 0x083c: ctx_mem */
+/* 0x0894: ctx_mem */
         0x840007f1,
         0xd00203f0,
         0x04bd000f,
-/* 0x0848: ctx_mem_wait */
+/* 0x08a0: ctx_mem_wait */
         0x8400f7f1,
         0xcf02f3f0,
         0xfffd00ff,
         0xf31bf405,
-/* 0x085a: ctx_load */
+/* 0x08b2: ctx_load */
         0x94bd00f8,
         0xf10599f0,
         0xf00f0007,
@@ -814,7 +836,7 @@ uint32_t nvd7_grhub_code[] = {
         0x02d00203,
         0xf004bd00,
         0x21f507f7,
-        0x07f1083c,
+        0x07f10894,
         0x03f0c000,
         0x0002d002,
         0x0bfe04bd,
@@ -869,31 +891,31 @@ uint32_t nvd7_grhub_code[] = {
         0x03f01700,
         0x0009d002,
         0x00f804bd,
-/* 0x0978: ctx_chan */
-        0x077f21f5,
-        0x085a21f5,
+/* 0x09d0: ctx_chan */
+        0x07d721f5,
+        0x08b221f5,
         0xf40ca7f0,
         0xf7f0d021,
-        0x3c21f505,
-        0xa421f508,
-/* 0x0993: ctx_mmio_exec */
+        0x9421f505,
+        0xfc21f508,
+/* 0x09eb: ctx_mmio_exec */
         0x9800f807,
         0x07f14103,
         0x03f08100,
         0x0003d002,
         0x34bd04bd,
-/* 0x09a4: ctx_mmio_loop */
+/* 0x09fc: ctx_mmio_loop */
         0xf4ff34c4,
         0x57f10f1b,
         0x53f00200,
         0x0535fa06,
-/* 0x09b6: ctx_mmio_pull */
+/* 0x0a0e: ctx_mmio_pull */
         0x4e9803f8,
         0x814f9880,
         0xb69d21f4,
         0x12b60830,
         0xdf1bf401,
-/* 0x09c8: ctx_mmio_done */
+/* 0x0a20: ctx_mmio_done */
         0xf1160398,
         0xf0810007,
         0x03d00203,
@@ -902,30 +924,30 @@ uint32_t nvd7_grhub_code[] = {
         0x13f00100,
         0x0601fa06,
         0x00f803f8,
-/* 0x09e8: ctx_xfer */
+/* 0x0a40: ctx_xfer */
         0xf104e7f0,
         0xf0020007,
         0x0ed00303,
-/* 0x09f7: ctx_xfer_idle */
+/* 0x0a4f: ctx_xfer_idle */
         0xf104bd00,
         0xf00000e7,
         0xeecf03e3,
         0x00e4f100,
         0xf21bf420,
         0xf40611f4,
-/* 0x0a0e: ctx_xfer_pre */
+/* 0x0a66: ctx_xfer_pre */
         0xf7f01102,
-        0x1421f510,
-        0x7f21f508,
+        0x6c21f510,
+        0xd721f508,
         0x1c11f407,
-/* 0x0a1c: ctx_xfer_pre_load */
+/* 0x0a74: ctx_xfer_pre_load */
         0xf502f7f0,
-        0xf507b521,
-        0xf507c721,
-        0xbd07dc21,
-        0xb521f5f4,
-        0x5a21f507,
-/* 0x0a35: ctx_xfer_exec */
+        0xf5080d21,
+        0xf5081f21,
+        0xbd083421,
+        0x0d21f5f4,
+        0xb221f508,
+/* 0x0a8d: ctx_xfer_exec */
         0x16019808,
         0x07f124bd,
         0x03f00500,
@@ -960,23 +982,65 @@ uint32_t nvd7_grhub_code[] = {
         0x1301f402,
         0xf40ca7f0,
         0xf7f0d021,
-        0x3c21f505,
+        0x9421f505,
         0x3202f408,
-/* 0x0ac4: ctx_xfer_post */
+/* 0x0b1c: ctx_xfer_post */
         0xf502f7f0,
-        0xbd07b521,
-        0x1421f5f4,
+        0xbd080d21,
+        0x6c21f5f4,
         0x7f21f508,
-        0xc721f502,
-        0xf5f4bd07,
-        0xf407b521,
+        0x1f21f502,
+        0xf5f4bd08,
+        0xf4080d21,
         0x01981011,
         0x0511fd40,
         0xf5070bf4,
-/* 0x0aef: ctx_xfer_no_post_mmio */
-        0xf5099321,
-/* 0x0af3: ctx_xfer_done */
-        0xf807a421,
+/* 0x0b47: ctx_xfer_no_post_mmio */
+        0xf509eb21,
+/* 0x0b4b: ctx_xfer_done */
+        0xf807fc21,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
         0x00000000,
         0x00000000,
         0x00000000,
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnve0.fuc.h b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnve0.fuc.h
index 6547b3dfc7ed..51c3797d8537 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnve0.fuc.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnve0.fuc.h
@@ -528,10 +528,10 @@ uint32_t nve0_grhub_code[] = {
         0x0001d001,
         0x17f104bd,
         0xf7f00100,
-        0x7f21f502,
-        0x9121f507,
+        0xd721f502,
+        0xe921f507,
         0x10f7f007,
-        0x07de21f5,
+        0x083621f5,
         0x98000e98,
         0x21f5010f,
         0x14950150,
@@ -574,9 +574,9 @@ uint32_t nve0_grhub_code[] = {
         0xb6800040,
         0x1bf40132,
         0x00f7f0be,
-        0x07de21f5,
+        0x083621f5,
         0xf500f7f0,
-        0xf1077f21,
+        0xf107d721,
         0xf0010007,
         0x01d00203,
         0xbd04bd00,
@@ -610,8 +610,8 @@ uint32_t nve0_grhub_code[] = {
         0x09d00203,
         0xf404bd00,
         0x31f40132,
-        0xaa21f502,
-        0xf094bd09,
+        0x0221f502,
+        0xf094bd0a,
         0x07f10799,
         0x03f01700,
         0x0009d002,
@@ -621,7 +621,7 @@ uint32_t nve0_grhub_code[] = {
         0x0203f00f,
         0xbd0009d0,
         0x0131f404,
-        0x09aa21f5,
+        0x0a0221f5,
         0x99f094bd,
         0x0007f106,
         0x0203f017,
@@ -631,7 +631,7 @@ uint32_t nve0_grhub_code[] = {
         0x12b920f9,
         0x0132f402,
         0xf50232f4,
-        0xfc09aa21,
+        0xfc0a0221,
         0x0007f120,
         0x0203f0c0,
         0xbd0002d0,
@@ -640,7 +640,7 @@ uint32_t nve0_grhub_code[] = {
         0xf41f23c8,
         0x31f40d0b,
         0x0232f401,
-        0x09aa21f5,
+        0x0a0221f5,
 /* 0x063c: chsw_done */
         0xf10127f0,
         0xf0c30007,
@@ -654,7 +654,7 @@ uint32_t nve0_grhub_code[] = {
 /* 0x0660: main_not_ctx_switch */
         0xf401e4b0,
         0xf2b90d1b,
-        0x4221f502,
+        0x9a21f502,
         0x460ef409,
 /* 0x0670: main_not_ctx_chan */
         0xf402e4b0,
@@ -664,8 +664,8 @@ uint32_t nve0_grhub_code[] = {
         0x09d00203,
         0xf404bd00,
         0x32f40132,
-        0xaa21f502,
-        0xf094bd09,
+        0x0221f502,
+        0xf094bd0a,
         0x07f10799,
         0x03f01700,
         0x0009d002,
@@ -710,18 +710,40 @@ uint32_t nve0_grhub_code[] = {
 /* 0x072b: ih_no_ctxsw */
         0xe40421f4,
         0xf40400ab,
-        0xb7f1140b,
+        0xe7f16c0b,
+        0xe3f00708,
+        0x6821f440,
+        0xf102ffb9,
+        0xf0040007,
+        0x0fd00203,
+        0xf104bd00,
+        0xf00704e7,
+        0x21f440e3,
+        0x02ffb968,
+        0x030007f1,
+        0xd00203f0,
+        0x04bd000f,
+        0x9450fec7,
+        0xf7f102ee,
+        0xf3f00700,
+        0x00efbb40,
+        0xf16821f4,
+        0xf0020007,
+        0x0fd00203,
+        0xf004bd00,
+        0x21f503f7,
+        0xb7f1037e,
         0xbfb90100,
         0x44e7f102,
         0x40e3f001,
-/* 0x0743: ih_no_fwmthd */
+/* 0x079b: ih_no_fwmthd */
         0xf19d21f4,
-        0xbd0104b7,
+        0xbd0504b7,
         0xb4abffb0,
         0xf10f0bf4,
         0xf0070007,
         0x0bd00303,
-/* 0x075b: ih_no_other */
+/* 0x07b3: ih_no_other */
         0xf104bd00,
         0xf0010007,
         0x0ad00003,
@@ -731,19 +753,19 @@ uint32_t nve0_grhub_code[] = {
         0xfc90fca0,
         0x0088fe80,
         0x32f480fc,
-/* 0x077f: ctx_4170s */
+/* 0x07d7: ctx_4170s */
         0xf001f800,
         0xffb910f5,
         0x70e7f102,
         0x40e3f041,
         0xf89d21f4,
-/* 0x0791: ctx_4170w */
+/* 0x07e9: ctx_4170w */
         0x70e7f100,
         0x40e3f041,
         0xb96821f4,
         0xf4f002ff,
         0xf01bf410,
-/* 0x07a6: ctx_redswitch */
+/* 0x07fe: ctx_redswitch */
         0xe7f100f8,
         0xe5f00200,
         0x20e5f040,
@@ -751,7 +773,7 @@ uint32_t nve0_grhub_code[] = {
         0xf0850007,
         0x0ed00103,
         0xf004bd00,
-/* 0x07c2: ctx_redswitch_delay */
+/* 0x081a: ctx_redswitch_delay */
         0xf2b608f7,
         0xfd1bf401,
         0x0400e5f1,
@@ -759,7 +781,7 @@ uint32_t nve0_grhub_code[] = {
         0x850007f1,
         0xd00103f0,
         0x04bd000e,
-/* 0x07de: ctx_86c */
+/* 0x0836: ctx_86c */
         0x07f100f8,
         0x03f01b00,
         0x000fd002,
@@ -770,17 +792,17 @@ uint32_t nve0_grhub_code[] = {
         0xe7f102ff,
         0xe3f0a86c,
         0x9d21f441,
-/* 0x0806: ctx_mem */
+/* 0x085e: ctx_mem */
         0x07f100f8,
         0x03f08400,
         0x000fd002,
-/* 0x0812: ctx_mem_wait */
+/* 0x086a: ctx_mem_wait */
         0xf7f104bd,
         0xf3f08400,
         0x00ffcf02,
         0xf405fffd,
         0x00f8f31b,
-/* 0x0824: ctx_load */
+/* 0x087c: ctx_load */
         0x99f094bd,
         0x0007f105,
         0x0203f00f,
@@ -797,7 +819,7 @@ uint32_t nve0_grhub_code[] = {
         0x0203f083,
         0xbd0002d0,
         0x07f7f004,
-        0x080621f5,
+        0x085e21f5,
         0xc00007f1,
         0xd00203f0,
         0x04bd0002,
@@ -852,29 +874,29 @@ uint32_t nve0_grhub_code[] = {
         0x170007f1,
         0xd00203f0,
         0x04bd0009,
-/* 0x0942: ctx_chan */
+/* 0x099a: ctx_chan */
         0x21f500f8,
-        0xa7f00824,
+        0xa7f0087c,
         0xd021f40c,
         0xf505f7f0,
-        0xf8080621,
-/* 0x0955: ctx_mmio_exec */
+        0xf8085e21,
+/* 0x09ad: ctx_mmio_exec */
         0x41039800,
         0x810007f1,
         0xd00203f0,
         0x04bd0003,
-/* 0x0966: ctx_mmio_loop */
+/* 0x09be: ctx_mmio_loop */
         0x34c434bd,
         0x0f1bf4ff,
         0x020057f1,
         0xfa0653f0,
         0x03f80535,
-/* 0x0978: ctx_mmio_pull */
+/* 0x09d0: ctx_mmio_pull */
         0x98804e98,
         0x21f4814f,
         0x0830b69d,
         0xf40112b6,
-/* 0x098a: ctx_mmio_done */
+/* 0x09e2: ctx_mmio_done */
         0x0398df1b,
         0x0007f116,
         0x0203f081,
@@ -883,30 +905,30 @@ uint32_t nve0_grhub_code[] = {
         0x010017f1,
         0xfa0613f0,
         0x03f80601,
-/* 0x09aa: ctx_xfer */
+/* 0x0a02: ctx_xfer */
         0xe7f000f8,
         0x0007f104,
         0x0303f002,
         0xbd000ed0,
-/* 0x09b9: ctx_xfer_idle */
+/* 0x0a11: ctx_xfer_idle */
         0x00e7f104,
         0x03e3f000,
         0xf100eecf,
         0xf42000e4,
         0x11f4f21b,
         0x0d02f406,
-/* 0x09d0: ctx_xfer_pre */
+/* 0x0a28: ctx_xfer_pre */
         0xf510f7f0,
-        0xf407de21,
-/* 0x09da: ctx_xfer_pre_load */
+        0xf4083621,
+/* 0x0a32: ctx_xfer_pre_load */
         0xf7f01c11,
-        0x7f21f502,
-        0x9121f507,
-        0xa621f507,
+        0xd721f502,
+        0xe921f507,
+        0xfe21f507,
         0xf5f4bd07,
-        0xf5077f21,
-/* 0x09f3: ctx_xfer_exec */
-        0x98082421,
+        0xf507d721,
+/* 0x0a4b: ctx_xfer_exec */
+        0x98087c21,
         0x24bd1601,
         0x050007f1,
         0xd00103f0,
@@ -941,21 +963,21 @@ uint32_t nve0_grhub_code[] = {
         0xa7f01301,
         0xd021f40c,
         0xf505f7f0,
-        0xf4080621,
-/* 0x0a82: ctx_xfer_post */
+        0xf4085e21,
+/* 0x0ada: ctx_xfer_post */
         0xf7f02e02,
-        0x7f21f502,
+        0xd721f502,
         0xf5f4bd07,
-        0xf507de21,
+        0xf5083621,
         0xf5027f21,
-        0xbd079121,
-        0x7f21f5f4,
+        0xbd07e921,
+        0xd721f5f4,
         0x1011f407,
         0xfd400198,
         0x0bf40511,
-        0x5521f507,
-/* 0x0aad: ctx_xfer_no_post_mmio */
-/* 0x0aad: ctx_xfer_done */
+        0xad21f507,
+/* 0x0b05: ctx_xfer_no_post_mmio */
+/* 0x0b05: ctx_xfer_done */
         0x0000f809,
         0x00000000,
         0x00000000,
@@ -977,4 +999,46 @@ uint32_t nve0_grhub_code[] = {
         0x00000000,
         0x00000000,
         0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
 };
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvf0.fuc.h b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvf0.fuc.h
index a5aee5a4302f..a0af4b703a8e 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvf0.fuc.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnvf0.fuc.h
@@ -528,10 +528,10 @@ uint32_t nvf0_grhub_code[] = {
         0x0001d001,
         0x17f104bd,
         0xf7f00100,
-        0x7f21f502,
-        0x9121f507,
+        0xd721f502,
+        0xe921f507,
         0x10f7f007,
-        0x07de21f5,
+        0x083621f5,
         0x98000e98,
         0x21f5010f,
         0x14950150,
@@ -574,9 +574,9 @@ uint32_t nvf0_grhub_code[] = {
         0xb6800040,
         0x1bf40132,
         0x00f7f0be,
-        0x07de21f5,
+        0x083621f5,
         0xf500f7f0,
-        0xf1077f21,
+        0xf107d721,
         0xf0010007,
         0x01d00203,
         0xbd04bd00,
@@ -610,8 +610,8 @@ uint32_t nvf0_grhub_code[] = {
         0x09d00203,
         0xf404bd00,
         0x31f40132,
-        0xaa21f502,
-        0xf094bd09,
+        0x0221f502,
+        0xf094bd0a,
         0x07f10799,
         0x03f01700,
         0x0009d002,
@@ -621,7 +621,7 @@ uint32_t nvf0_grhub_code[] = {
         0x0203f037,
         0xbd0009d0,
         0x0131f404,
-        0x09aa21f5,
+        0x0a0221f5,
         0x99f094bd,
         0x0007f106,
         0x0203f017,
@@ -631,7 +631,7 @@ uint32_t nvf0_grhub_code[] = {
         0x12b920f9,
         0x0132f402,
         0xf50232f4,
-        0xfc09aa21,
+        0xfc0a0221,
         0x0007f120,
         0x0203f0c0,
         0xbd0002d0,
@@ -640,7 +640,7 @@ uint32_t nvf0_grhub_code[] = {
         0xf41f23c8,
         0x31f40d0b,
         0x0232f401,
-        0x09aa21f5,
+        0x0a0221f5,
 /* 0x063c: chsw_done */
         0xf10127f0,
         0xf0c30007,
@@ -654,7 +654,7 @@ uint32_t nvf0_grhub_code[] = {
 /* 0x0660: main_not_ctx_switch */
         0xf401e4b0,
         0xf2b90d1b,
-        0x4221f502,
+        0x9a21f502,
         0x460ef409,
 /* 0x0670: main_not_ctx_chan */
         0xf402e4b0,
@@ -664,8 +664,8 @@ uint32_t nvf0_grhub_code[] = {
         0x09d00203,
         0xf404bd00,
         0x32f40132,
-        0xaa21f502,
-        0xf094bd09,
+        0x0221f502,
+        0xf094bd0a,
         0x07f10799,
         0x03f01700,
         0x0009d002,
@@ -710,18 +710,40 @@ uint32_t nvf0_grhub_code[] = {
 /* 0x072b: ih_no_ctxsw */
         0xe40421f4,
         0xf40400ab,
-        0xb7f1140b,
+        0xe7f16c0b,
+        0xe3f00708,
+        0x6821f440,
+        0xf102ffb9,
+        0xf0040007,
+        0x0fd00203,
+        0xf104bd00,
+        0xf00704e7,
+        0x21f440e3,
+        0x02ffb968,
+        0x030007f1,
+        0xd00203f0,
+        0x04bd000f,
+        0x9450fec7,
+        0xf7f102ee,
+        0xf3f00700,
+        0x00efbb40,
+        0xf16821f4,
+        0xf0020007,
+        0x0fd00203,
+        0xf004bd00,
+        0x21f503f7,
+        0xb7f1037e,
         0xbfb90100,
         0x44e7f102,
         0x40e3f001,
-/* 0x0743: ih_no_fwmthd */
+/* 0x079b: ih_no_fwmthd */
         0xf19d21f4,
-        0xbd0104b7,
+        0xbd0504b7,
         0xb4abffb0,
         0xf10f0bf4,
         0xf0070007,
         0x0bd00303,
-/* 0x075b: ih_no_other */
+/* 0x07b3: ih_no_other */
         0xf104bd00,
         0xf0010007,
         0x0ad00003,
@@ -731,19 +753,19 @@ uint32_t nvf0_grhub_code[] = {
         0xfc90fca0,
         0x0088fe80,
         0x32f480fc,
-/* 0x077f: ctx_4170s */
+/* 0x07d7: ctx_4170s */
         0xf001f800,
         0xffb910f5,
         0x70e7f102,
         0x40e3f041,
         0xf89d21f4,
-/* 0x0791: ctx_4170w */
+/* 0x07e9: ctx_4170w */
         0x70e7f100,
         0x40e3f041,
         0xb96821f4,
         0xf4f002ff,
         0xf01bf410,
-/* 0x07a6: ctx_redswitch */
+/* 0x07fe: ctx_redswitch */
         0xe7f100f8,
         0xe5f00200,
         0x20e5f040,
@@ -751,7 +773,7 @@ uint32_t nvf0_grhub_code[] = {
         0xf0850007,
         0x0ed00103,
         0xf004bd00,
-/* 0x07c2: ctx_redswitch_delay */
+/* 0x081a: ctx_redswitch_delay */
         0xf2b608f7,
         0xfd1bf401,
         0x0400e5f1,
@@ -759,7 +781,7 @@ uint32_t nvf0_grhub_code[] = {
         0x850007f1,
         0xd00103f0,
         0x04bd000e,
-/* 0x07de: ctx_86c */
+/* 0x0836: ctx_86c */
         0x07f100f8,
         0x03f02300,
         0x000fd002,
@@ -770,17 +792,17 @@ uint32_t nvf0_grhub_code[] = {
         0xe7f102ff,
         0xe3f0a88c,
         0x9d21f441,
-/* 0x0806: ctx_mem */
+/* 0x085e: ctx_mem */
         0x07f100f8,
         0x03f08400,
         0x000fd002,
-/* 0x0812: ctx_mem_wait */
+/* 0x086a: ctx_mem_wait */
         0xf7f104bd,
         0xf3f08400,
         0x00ffcf02,
         0xf405fffd,
         0x00f8f31b,
-/* 0x0824: ctx_load */
+/* 0x087c: ctx_load */
         0x99f094bd,
         0x0007f105,
         0x0203f037,
@@ -797,7 +819,7 @@ uint32_t nvf0_grhub_code[] = {
         0x0203f083,
         0xbd0002d0,
         0x07f7f004,
-        0x080621f5,
+        0x085e21f5,
         0xc00007f1,
         0xd00203f0,
         0x04bd0002,
@@ -852,29 +874,29 @@ uint32_t nvf0_grhub_code[] = {
         0x170007f1,
         0xd00203f0,
         0x04bd0009,
-/* 0x0942: ctx_chan */
+/* 0x099a: ctx_chan */
         0x21f500f8,
-        0xa7f00824,
+        0xa7f0087c,
         0xd021f40c,
         0xf505f7f0,
-        0xf8080621,
-/* 0x0955: ctx_mmio_exec */
+        0xf8085e21,
+/* 0x09ad: ctx_mmio_exec */
         0x41039800,
         0x810007f1,
         0xd00203f0,
         0x04bd0003,
-/* 0x0966: ctx_mmio_loop */
+/* 0x09be: ctx_mmio_loop */
         0x34c434bd,
         0x0f1bf4ff,
         0x020057f1,
         0xfa0653f0,
         0x03f80535,
-/* 0x0978: ctx_mmio_pull */
+/* 0x09d0: ctx_mmio_pull */
         0x98804e98,
         0x21f4814f,
         0x0830b69d,
         0xf40112b6,
-/* 0x098a: ctx_mmio_done */
+/* 0x09e2: ctx_mmio_done */
         0x0398df1b,
         0x0007f116,
         0x0203f081,
@@ -883,30 +905,30 @@ uint32_t nvf0_grhub_code[] = {
         0x010017f1,
         0xfa0613f0,
         0x03f80601,
-/* 0x09aa: ctx_xfer */
+/* 0x0a02: ctx_xfer */
         0xe7f000f8,
         0x0007f104,
         0x0303f002,
         0xbd000ed0,
-/* 0x09b9: ctx_xfer_idle */
+/* 0x0a11: ctx_xfer_idle */
         0x00e7f104,
         0x03e3f000,
         0xf100eecf,
         0xf42000e4,
         0x11f4f21b,
         0x0d02f406,
-/* 0x09d0: ctx_xfer_pre */
+/* 0x0a28: ctx_xfer_pre */
         0xf510f7f0,
-        0xf407de21,
-/* 0x09da: ctx_xfer_pre_load */
+        0xf4083621,
+/* 0x0a32: ctx_xfer_pre_load */
         0xf7f01c11,
-        0x7f21f502,
-        0x9121f507,
-        0xa621f507,
+        0xd721f502,
+        0xe921f507,
+        0xfe21f507,
         0xf5f4bd07,
-        0xf5077f21,
-/* 0x09f3: ctx_xfer_exec */
-        0x98082421,
+        0xf507d721,
+/* 0x0a4b: ctx_xfer_exec */
+        0x98087c21,
         0x24bd1601,
         0x050007f1,
         0xd00103f0,
@@ -941,21 +963,21 @@ uint32_t nvf0_grhub_code[] = {
         0xa7f01301,
         0xd021f40c,
         0xf505f7f0,
-        0xf4080621,
-/* 0x0a82: ctx_xfer_post */
+        0xf4085e21,
+/* 0x0ada: ctx_xfer_post */
         0xf7f02e02,
-        0x7f21f502,
+        0xd721f502,
         0xf5f4bd07,
-        0xf507de21,
+        0xf5083621,
         0xf5027f21,
-        0xbd079121,
-        0x7f21f5f4,
+        0xbd07e921,
+        0xd721f5f4,
         0x1011f407,
         0xfd400198,
         0x0bf40511,
-        0x5521f507,
-/* 0x0aad: ctx_xfer_no_post_mmio */
-/* 0x0aad: ctx_xfer_done */
+        0xad21f507,
+/* 0x0b05: ctx_xfer_no_post_mmio */
+/* 0x0b05: ctx_xfer_done */
         0x0000f809,
         0x00000000,
         0x00000000,
@@ -977,4 +999,46 @@ uint32_t nvf0_grhub_code[] = {
         0x00000000,
         0x00000000,
         0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
+        0x00000000,
 };
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/macros.fuc b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/macros.fuc
index a47d49db5232..2a0b0f844299 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/macros.fuc
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/macros.fuc
@@ -30,6 +30,12 @@
 #define GK110 0xf0
 #define GK208 0x108
 
+#define NV_PGRAPH_TRAPPED_ADDR                                         0x400704
+#define NV_PGRAPH_TRAPPED_DATA_LO                                      0x400708
+#define NV_PGRAPH_TRAPPED_DATA_HI                                      0x40070c
+
+#define NV_PGRAPH_FE_OBJECT_TABLE(n)                        ((n) * 4 + 0x400700)
+
 #define NV_PGRAPH_FECS_INTR_ACK                                        0x409004
 #define NV_PGRAPH_FECS_INTR                                            0x409008
 #define NV_PGRAPH_FECS_INTR_FWMTHD                                   0x00000400
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/os.h b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/os.h
index fd1d380de094..1718ae4e8224 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/os.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/os.h
@@ -3,5 +3,6 @@
 
 #define E_BAD_COMMAND  0x00000001
 #define E_CMD_OVERFLOW 0x00000002
+#define E_BAD_FWMTHD   0x00000003
 
 #endif
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c b/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c
index 1a2d56493cf6..20665c21d80e 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c
@@ -976,7 +976,6 @@ nv50_graph_init(struct nouveau_object *object)
                 break;
         case 0xa0:
         default:
-                nv_wr32(priv, 0x402cc0, 0x00000000);
                 if (nv_device(priv)->chipset == 0xa0 ||
                     nv_device(priv)->chipset == 0xaa ||
                     nv_device(priv)->chipset == 0xac) {
@@ -991,10 +990,10 @@ nv50_graph_init(struct nouveau_object *object)
 
         /* zero out zcull regions */
         for (i = 0; i < 8; i++) {
-                nv_wr32(priv, 0x402c20 + (i * 8), 0x00000000);
-                nv_wr32(priv, 0x402c24 + (i * 8), 0x00000000);
-                nv_wr32(priv, 0x402c28 + (i * 8), 0x00000000);
-                nv_wr32(priv, 0x402c2c + (i * 8), 0x00000000);
+                nv_wr32(priv, 0x402c20 + (i * 0x10), 0x00000000);
+                nv_wr32(priv, 0x402c24 + (i * 0x10), 0x00000000);
+                nv_wr32(priv, 0x402c28 + (i * 0x10), 0x00000000);
+                nv_wr32(priv, 0x402c2c + (i * 0x10), 0x00000000);
         }
         return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
index bf7bdb1f291e..aa0838916354 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
@@ -789,17 +789,40 @@ nvc0_graph_ctxctl_debug(struct nvc0_graph_priv *priv)
 static void
 nvc0_graph_ctxctl_isr(struct nvc0_graph_priv *priv)
 {
-        u32 ustat = nv_rd32(priv, 0x409c18);
+        u32 stat = nv_rd32(priv, 0x409c18);
 
-        if (ustat & 0x00000001)
-                nv_error(priv, "CTXCTL ucode error\n");
-        if (ustat & 0x00080000)
-                nv_error(priv, "CTXCTL watchdog timeout\n");
-        if (ustat & ~0x00080001)
-                nv_error(priv, "CTXCTL 0x%08x\n", ustat);
+        if (stat & 0x00000001) {
+                u32 code = nv_rd32(priv, 0x409814);
+                if (code == E_BAD_FWMTHD) {
+                        u32 class = nv_rd32(priv, 0x409808);
+                        u32  addr = nv_rd32(priv, 0x40980c);
+                        u32  subc = (addr & 0x00070000) >> 16;
+                        u32  mthd = (addr & 0x00003ffc);
+                        u32  data = nv_rd32(priv, 0x409810);
+
+                        nv_error(priv, "FECS MTHD subc %d class 0x%04x "
+                                       "mthd 0x%04x data 0x%08x\n",
+                                 subc, class, mthd, data);
 
-        nvc0_graph_ctxctl_debug(priv);
-        nv_wr32(priv, 0x409c20, ustat);
+                        nv_wr32(priv, 0x409c20, 0x00000001);
+                        stat &= ~0x00000001;
+                } else {
+                        nv_error(priv, "FECS ucode error %d\n", code);
+                }
+        }
+
+        if (stat & 0x00080000) {
+                nv_error(priv, "FECS watchdog timeout\n");
+                nvc0_graph_ctxctl_debug(priv);
+                nv_wr32(priv, 0x409c20, 0x00080000);
+                stat &= ~0x00080000;
+        }
+
+        if (stat) {
+                nv_error(priv, "FECS 0x%08x\n", stat);
+                nvc0_graph_ctxctl_debug(priv);
+                nv_wr32(priv, 0x409c20, stat);
+        }
 }
 
 static void
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
index 75203a99d902..ffc289198dd8 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
@@ -38,6 +38,8 @@
 #include <engine/fifo.h>
 #include <engine/graph.h>
 
+#include "fuc/os.h"
+
 #define GPC_MAX 32
 #define TPC_MAX (GPC_MAX * 8)
 
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h
index db1b39d08013..825f7bb46b67 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h
@@ -84,6 +84,7 @@ extern struct nouveau_oclass *nv4e_i2c_oclass;
 extern struct nouveau_oclass *nv50_i2c_oclass;
 extern struct nouveau_oclass *nv94_i2c_oclass;
 extern struct nouveau_oclass *nvd0_i2c_oclass;
+extern struct nouveau_oclass *gf117_i2c_oclass;
 extern struct nouveau_oclass *nve0_i2c_oclass;
 
 static inline int
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c
index 4ac1aa30ea11..0e62a3240144 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c
@@ -307,7 +307,6 @@ calc_clk(struct nve0_clock_priv *priv,
                 info->dsrc = src0;
                 if (div0) {
                         info->ddiv |= 0x80000000;
-                        info->ddiv |= div0 << 8;
                         info->ddiv |= div0;
                 }
                 if (div1D) {
@@ -352,7 +351,7 @@ nve0_clock_prog_0(struct nve0_clock_priv *priv, int clk)
 {
         struct nve0_clock_info *info = &priv->eng[clk];
         if (!info->ssel) {
-                nv_mask(priv, 0x1371d0 + (clk * 0x04), 0x80003f3f, info->ddiv);
+                nv_mask(priv, 0x1371d0 + (clk * 0x04), 0x8000003f, info->ddiv);
                 nv_wr32(priv, 0x137160 + (clk * 0x04), info->dsrc);
         }
 }
@@ -389,7 +388,10 @@ static void
 nve0_clock_prog_3(struct nve0_clock_priv *priv, int clk)
 {
         struct nve0_clock_info *info = &priv->eng[clk];
-        nv_mask(priv, 0x137250 + (clk * 0x04), 0x00003f3f, info->mdiv);
+        if (info->ssel)
+                nv_mask(priv, 0x137250 + (clk * 0x04), 0x00003f00, info->mdiv);
+        else
+                nv_mask(priv, 0x137250 + (clk * 0x04), 0x0000003f, info->mdiv);
 }
 
 static void
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
index 84c7efbc4f38..1ad3ea503133 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
@@ -262,8 +262,8 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
         struct nve0_ram *ram = (void *)pfb->ram;
         struct nve0_ramfuc *fuc = &ram->fuc;
         struct nouveau_ram_data *next = ram->base.next;
-        int vc = !(next->bios.ramcfg_11_02_08);
-        int mv = !(next->bios.ramcfg_11_02_04);
+        int vc = !next->bios.ramcfg_11_02_08;
+        int mv = !next->bios.ramcfg_11_02_04;
         u32 mask, data;
 
         ram_mask(fuc, 0x10f808, 0x40000000, 0x40000000);
@@ -370,8 +370,8 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
                 }
         }
 
-        if ( (next->bios.ramcfg_11_02_40) ||
-             (next->bios.ramcfg_11_07_10)) {
+        if (next->bios.ramcfg_11_02_40 ||
+            next->bios.ramcfg_11_07_10) {
                 ram_mask(fuc, 0x132040, 0x00010000, 0x00010000);
                 ram_nsec(fuc, 20000);
         }
@@ -417,7 +417,7 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
                 ram_mask(fuc, 0x10f694, 0xff00ff00, data);
         }
 
-        if (ram->mode == 2 && (next->bios.ramcfg_11_08_10))
+        if (ram->mode == 2 && next->bios.ramcfg_11_08_10)
                 data = 0x00000080;
         else
                 data = 0x00000000;
@@ -425,13 +425,13 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
 
         mask = 0x00070000;
         data = 0x00000000;
-        if (!(next->bios.ramcfg_11_02_80))
+        if (!next->bios.ramcfg_11_02_80)
                 data |= 0x03000000;
-        if (!(next->bios.ramcfg_11_02_40))
+        if (!next->bios.ramcfg_11_02_40)
                 data |= 0x00002000;
-        if (!(next->bios.ramcfg_11_07_10))
+        if (!next->bios.ramcfg_11_07_10)
                 data |= 0x00004000;
-        if (!(next->bios.ramcfg_11_07_08))
+        if (!next->bios.ramcfg_11_07_08)
                 data |= 0x00000003;
         else
                 data |= 0x74000000;
@@ -486,7 +486,7 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
 
         data = mask = 0x00000000;
         if (NOTE00(ramcfg_02_03 != 0)) {
-                data |= (next->bios.ramcfg_11_02_03) << 8;
+                data |= next->bios.ramcfg_11_02_03 << 8;
                 mask |= 0x00000300;
         }
         if (NOTE00(ramcfg_01_10)) {
@@ -498,7 +498,7 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
 
         data = mask = 0x00000000;
         if (NOTE00(timing_30_07 != 0)) {
-                data |= (next->bios.timing_20_30_07) << 28;
+                data |= next->bios.timing_20_30_07 << 28;
                 mask |= 0x70000000;
         }
         if (NOTE00(ramcfg_01_01)) {
@@ -510,7 +510,7 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
 
         data = mask = 0x00000000;
         if (NOTE00(timing_30_07 != 0)) {
-                data |= (next->bios.timing_20_30_07) << 28;
+                data |= next->bios.timing_20_30_07 << 28;
                 mask |= 0x70000000;
         }
         if (NOTE00(ramcfg_01_02)) {
@@ -522,16 +522,16 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
 
         mask = 0x33f00000;
         data = 0x00000000;
-        if (!(next->bios.ramcfg_11_01_04))
+        if (!next->bios.ramcfg_11_01_04)
                 data |= 0x20200000;
-        if (!(next->bios.ramcfg_11_07_80))
+        if (!next->bios.ramcfg_11_07_80)
                 data |= 0x12800000;
         /*XXX: see note above about there probably being some condition
          *     for the 10f824 stuff that uses ramcfg 3...
          */
-        if ( (next->bios.ramcfg_11_03_f0)) {
+        if (next->bios.ramcfg_11_03_f0) {
                 if (next->bios.rammap_11_08_0c) {
-                        if (!(next->bios.ramcfg_11_07_80))
+                        if (!next->bios.ramcfg_11_07_80)
                                 mask |= 0x00000020;
                         else
                                 data |= 0x00000020;
@@ -563,7 +563,7 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
                 ram_wait(fuc, 0x100710, 0x80000000, 0x80000000, 200000);
         }
 
-        data = (next->bios.timing_20_30_07) << 8;
+        data = next->bios.timing_20_30_07 << 8;
         if (next->bios.ramcfg_11_01_01)
                 data |= 0x80000000;
         ram_mask(fuc, 0x100778, 0x00000700, data);
@@ -588,7 +588,7 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
         ram_wr32(fuc, 0x10f310, 0x00000001); /* REFRESH */
         ram_wr32(fuc, 0x10f210, 0x80000000); /* REFRESH_AUTO = 1 */
 
-        if ((next->bios.ramcfg_11_08_10) && (ram->mode == 2) /*XXX*/) {
+        if (next->bios.ramcfg_11_08_10 && (ram->mode == 2) /*XXX*/) {
                 u32 temp = ram_mask(fuc, 0x10f294, 0xff000000, 0x24000000);
                 nve0_ram_train(fuc, 0xbc0e0000, 0xa4010000); /*XXX*/
                 ram_nsec(fuc, 1000);
@@ -621,8 +621,8 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
         data  = ram_rd32(fuc, 0x10f978);
         data &= ~0x00046144;
         data |=  0x0000000b;
-        if (!(next->bios.ramcfg_11_07_08)) {
-                if (!(next->bios.ramcfg_11_07_04))
+        if (!next->bios.ramcfg_11_07_08) {
+                if (!next->bios.ramcfg_11_07_04)
                         data |= 0x0000200c;
                 else
                         data |= 0x00000000;
@@ -636,11 +636,11 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
                 ram_wr32(fuc, 0x10f830, data);
         }
 
-        if (!(next->bios.ramcfg_11_07_08)) {
+        if (!next->bios.ramcfg_11_07_08) {
                 data = 0x88020000;
-                if ( (next->bios.ramcfg_11_07_04))
+                if ( next->bios.ramcfg_11_07_04)
                         data |= 0x10000000;
-                if (!(next->bios.rammap_11_08_10))
+                if (!next->bios.rammap_11_08_10)
                         data |= 0x00080000;
         } else {
                 data = 0xa40e0000;
@@ -689,8 +689,8 @@ nve0_ram_calc_sddr3(struct nouveau_fb *pfb, u32 freq)
         const u32 runk0 = ram->fN1 << 16;
         const u32 runk1 = ram->fN1;
         struct nouveau_ram_data *next = ram->base.next;
-        int vc = !(next->bios.ramcfg_11_02_08);
-        int mv = !(next->bios.ramcfg_11_02_04);
+        int vc = !next->bios.ramcfg_11_02_08;
+        int mv = !next->bios.ramcfg_11_02_04;
         u32 mask, data;
 
         ram_mask(fuc, 0x10f808, 0x40000000, 0x40000000);
@@ -705,7 +705,7 @@ nve0_ram_calc_sddr3(struct nouveau_fb *pfb, u32 freq)
         }
 
         ram_mask(fuc, 0x10f200, 0x00000800, 0x00000000);
-        if ((next->bios.ramcfg_11_03_f0))
+        if (next->bios.ramcfg_11_03_f0)
                 ram_mask(fuc, 0x10f808, 0x04000000, 0x04000000);
 
         ram_wr32(fuc, 0x10f314, 0x00000001); /* PRECHARGE */
@@ -761,7 +761,7 @@ nve0_ram_calc_sddr3(struct nouveau_fb *pfb, u32 freq)
 
         ram_mask(fuc, 0x1373f4, 0x00000000, 0x00010010);
         data  = ram_rd32(fuc, 0x1373ec) & ~0x00030000;
-        data |= (next->bios.ramcfg_11_03_30) << 12;
+        data |= next->bios.ramcfg_11_03_30 << 16;
         ram_wr32(fuc, 0x1373ec, data);
         ram_mask(fuc, 0x1373f4, 0x00000003, 0x00000000);
         ram_mask(fuc, 0x1373f4, 0x00000010, 0x00000000);
@@ -793,8 +793,8 @@ nve0_ram_calc_sddr3(struct nouveau_fb *pfb, u32 freq)
                 }
         }
 
-        if ( (next->bios.ramcfg_11_02_40) ||
-             (next->bios.ramcfg_11_07_10)) {
+        if (next->bios.ramcfg_11_02_40 ||
+            next->bios.ramcfg_11_07_10) {
                 ram_mask(fuc, 0x132040, 0x00010000, 0x00010000);
                 ram_nsec(fuc, 20000);
         }
@@ -810,13 +810,13 @@ nve0_ram_calc_sddr3(struct nouveau_fb *pfb, u32 freq)
 
         mask = 0x00010000;
         data = 0x00000000;
-        if (!(next->bios.ramcfg_11_02_80))
+        if (!next->bios.ramcfg_11_02_80)
                 data |= 0x03000000;
-        if (!(next->bios.ramcfg_11_02_40))
+        if (!next->bios.ramcfg_11_02_40)
                 data |= 0x00002000;
-        if (!(next->bios.ramcfg_11_07_10))
+        if (!next->bios.ramcfg_11_07_10)
                 data |= 0x00004000;
-        if (!(next->bios.ramcfg_11_07_08))
+        if (!next->bios.ramcfg_11_07_08)
                 data |= 0x00000003;
         else
                 data |= 0x14000000;
@@ -844,16 +844,16 @@ nve0_ram_calc_sddr3(struct nouveau_fb *pfb, u32 freq)
 
         mask = 0x33f00000;
         data = 0x00000000;
-        if (!(next->bios.ramcfg_11_01_04))
+        if (!next->bios.ramcfg_11_01_04)
                 data |= 0x20200000;
-        if (!(next->bios.ramcfg_11_07_80))
+        if (!next->bios.ramcfg_11_07_80)
                 data |= 0x12800000;
         /*XXX: see note above about there probably being some condition
          *     for the 10f824 stuff that uses ramcfg 3...
          */
-        if ( (next->bios.ramcfg_11_03_f0)) {
+        if (next->bios.ramcfg_11_03_f0) {
                 if (next->bios.rammap_11_08_0c) {
-                        if (!(next->bios.ramcfg_11_07_80))
+                        if (!next->bios.ramcfg_11_07_80)
                                 mask |= 0x00000020;
                         else
                                 data |= 0x00000020;
@@ -876,7 +876,7 @@ nve0_ram_calc_sddr3(struct nouveau_fb *pfb, u32 freq)
                 data = next->bios.timing_20_2c_1fc0;
         ram_mask(fuc, 0x10f24c, 0x7f000000, data << 24);
 
-        ram_mask(fuc, 0x10f224, 0x001f0000, next->bios.timing_20_30_f8);
+        ram_mask(fuc, 0x10f224, 0x001f0000, next->bios.timing_20_30_f8 << 16);
 
         ram_wr32(fuc, 0x10f090, 0x4000007f);
         ram_nsec(fuc, 1000);
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/gf117.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/gf117.c
new file mode 100644
index 000000000000..fa891c39866b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/gf117.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "nv50.h"
+
+struct nouveau_oclass *
+gf117_i2c_oclass = &(struct nouveau_i2c_impl) {
+        .base.handle = NV_SUBDEV(I2C, 0xd7),
+        .base.ofuncs = &(struct nouveau_ofuncs) {
+                .ctor = _nouveau_i2c_ctor,
+                .dtor = _nouveau_i2c_dtor,
+                .init = _nouveau_i2c_init,
+                .fini = _nouveau_i2c_fini,
+        },
+        .sclass = nvd0_i2c_sclass,
+        .pad_x = &nv04_i2c_pad_oclass,
+        .pad_s = &nv04_i2c_pad_oclass,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ibus/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/ibus/nve0.c
index 7120124dceac..ebef970a0645 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/ibus/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/ibus/nve0.c
@@ -95,6 +95,23 @@ nve0_ibus_intr(struct nouveau_subdev *subdev)
 }
 
 static int
+nve0_ibus_init(struct nouveau_object *object)
+{
+        struct nve0_ibus_priv *priv = (void *)object;
+        int ret = nouveau_ibus_init(&priv->base);
+        if (ret == 0) {
+                nv_mask(priv, 0x122318, 0x0003ffff, 0x00001000);
+                nv_mask(priv, 0x12231c, 0x0003ffff, 0x00000200);
+                nv_mask(priv, 0x122310, 0x0003ffff, 0x00000800);
+                nv_mask(priv, 0x122348, 0x0003ffff, 0x00000100);
+                nv_mask(priv, 0x1223b0, 0x0003ffff, 0x00000fff);
+                nv_mask(priv, 0x122348, 0x0003ffff, 0x00000200);
+                nv_mask(priv, 0x122358, 0x0003ffff, 0x00002880);
+        }
+        return ret;
+}
+
+static int
 nve0_ibus_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
                struct nouveau_oclass *oclass, void *data, u32 size,
                struct nouveau_object **pobject)
@@ -117,7 +134,7 @@ nve0_ibus_oclass = {
         .ofuncs = &(struct nouveau_ofuncs) {
                 .ctor = nve0_ibus_ctor,
                 .dtor = _nouveau_ibus_dtor,
-                .init = _nouveau_ibus_init,
+                .init = nve0_ibus_init,
                 .fini = _nouveau_ibus_fini,
         },
 };
diff --git a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/host.fuc b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/host.fuc
index 2284ecb1c9b8..c2bb616a8da5 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/host.fuc
+++ b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/host.fuc
@@ -83,7 +83,7 @@ host_send:
                 // increment GET
                 add b32 $r1 0x1
                 and $r14 $r1 #fifo_qmaskf
-                nv_iowr(NV_PPWR_FIFO_GET(0), $r1)
+                nv_iowr(NV_PPWR_FIFO_GET(0), $r14)
                 bra #host_send
         host_send_done:
         ret
diff --git a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nv108.fuc.h b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nv108.fuc.h
index 4bd43a99fdcc..39a5dc150a05 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nv108.fuc.h
+++ b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nv108.fuc.h
@@ -1018,7 +1018,7 @@ uint32_t nv108_pwr_code[] = {
         0xb600023f,
         0x1ec40110,
         0x04b0400f,
-        0xbd0001f6,
+        0xbd000ef6,
         0xc70ef404,
 /* 0x0328: host_send_done */
 /* 0x032a: host_recv */
diff --git a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nva3.fuc.h b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nva3.fuc.h
index 5a73fa620978..254205cd5166 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nva3.fuc.h
+++ b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nva3.fuc.h
@@ -1124,7 +1124,7 @@ uint32_t nva3_pwr_code[] = {
         0x0f1ec401,
         0x04b007f1,
         0xd00604b6,
-        0x04bd0001,
+        0x04bd000e,
 /* 0x03cb: host_send_done */
         0xf8ba0ef4,
 /* 0x03cd: host_recv */
diff --git a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvc0.fuc.h b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvc0.fuc.h
index 4dba00d2dd1a..7ac87405d01b 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvc0.fuc.h
+++ b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvc0.fuc.h
@@ -1124,7 +1124,7 @@ uint32_t nvc0_pwr_code[] = {
         0x0f1ec401,
         0x04b007f1,
         0xd00604b6,
-        0x04bd0001,
+        0x04bd000e,
 /* 0x03cb: host_send_done */
         0xf8ba0ef4,
 /* 0x03cd: host_recv */
diff --git a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvd0.fuc.h b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvd0.fuc.h
index 5e24c6bc041d..cd9ff1a73284 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvd0.fuc.h
+++ b/drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvd0.fuc.h
@@ -1033,7 +1033,7 @@ uint32_t nvd0_pwr_code[] = {
         0xb6026b21,
         0x1ec40110,
         0xb007f10f,
-        0x0001d004,
+        0x000ed004,
         0x0ef404bd,
 /* 0x0365: host_send_done */
 /* 0x0367: host_recv */
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 26b5647188ef..47ad74255bf1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -736,6 +736,9 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
                   new_bo->bo.offset };
 
+        /* Keep vblanks on during flip, for the target crtc of this flip */
+        drm_vblank_get(dev, nouveau_crtc(crtc)->index);
+
         /* Emit a page flip */
         if (nv_device(drm->device)->card_type >= NV_50) {
                 ret = nv50_display_flip_next(crtc, fb, chan, swap_interval);
@@ -779,6 +782,7 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
         return 0;
 
 fail_unreserve:
+        drm_vblank_put(dev, nouveau_crtc(crtc)->index);
         ttm_bo_unreserve(&old_bo->bo);
 fail_unpin:
         mutex_unlock(&chan->cli->mutex);
@@ -817,6 +821,9 @@ nouveau_finish_page_flip(struct nouveau_channel *chan,
                 drm_send_vblank_event(dev, crtcid, s->event);
         }
 
+        /* Give up ownership of vblank for page-flipped crtc */
+        drm_vblank_put(dev, s->crtc);
+
         list_del(&s->head);
         if (ps)
                 *ps = *s;
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 26c12a3fe430..a03c73411a56 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1052,7 +1052,7 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
         int encoder_mode = atombios_get_encoder_mode(radeon_crtc->encoder);
 
         /* pass the actual clock to atombios_crtc_program_pll for DCE5,6 for HDMI */
-        if (ASIC_IS_DCE5(rdev) && !ASIC_IS_DCE8(rdev) &&
+        if (ASIC_IS_DCE5(rdev) &&
             (encoder_mode == ATOM_ENCODER_MODE_HDMI) &&
             (radeon_crtc->bpc > 8))
                 clock = radeon_crtc->adjusted_clock;
@@ -1136,6 +1136,7 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
         u32 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_NONE);
         u32 tmp, viewport_w, viewport_h;
         int r;
+        bool bypass_lut = false;
 
         /* no fb bound */
         if (!atomic && !crtc->primary->fb) {
@@ -1174,33 +1175,73 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
         radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
         radeon_bo_unreserve(rbo);
 
-        switch (target_fb->bits_per_pixel) {
-        case 8:
+        switch (target_fb->pixel_format) {
+        case DRM_FORMAT_C8:
                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_8BPP) |
                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_INDEXED));
                 break;
-        case 15:
+        case DRM_FORMAT_XRGB4444:
+        case DRM_FORMAT_ARGB4444:
+                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
+                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB4444));
+#ifdef __BIG_ENDIAN
+                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
+#endif
+                break;
+        case DRM_FORMAT_XRGB1555:
+        case DRM_FORMAT_ARGB1555:
                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB1555));
+#ifdef __BIG_ENDIAN
+                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
+#endif
+                break;
+        case DRM_FORMAT_BGRX5551:
+        case DRM_FORMAT_BGRA5551:
+                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
+                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA5551));
+#ifdef __BIG_ENDIAN
+                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
+#endif
                 break;
-        case 16:
+        case DRM_FORMAT_RGB565:
                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB565));
 #ifdef __BIG_ENDIAN
                 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
 #endif
                 break;
-        case 24:
-        case 32:
+        case DRM_FORMAT_XRGB8888:
+        case DRM_FORMAT_ARGB8888:
                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB8888));
 #ifdef __BIG_ENDIAN
                 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
 #endif
                 break;
+        case DRM_FORMAT_XRGB2101010:
+        case DRM_FORMAT_ARGB2101010:
+                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
+                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB2101010));
+#ifdef __BIG_ENDIAN
+                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
+#endif
+                /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
+                bypass_lut = true;
+                break;
+        case DRM_FORMAT_BGRX1010102:
+        case DRM_FORMAT_BGRA1010102:
+                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
+                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA1010102));
+#ifdef __BIG_ENDIAN
+                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
+#endif
+                /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
+                bypass_lut = true;
+                break;
         default:
-                DRM_ERROR("Unsupported screen depth %d\n",
-                          target_fb->bits_per_pixel);
+                DRM_ERROR("Unsupported screen format %s\n",
+                          drm_get_format_name(target_fb->pixel_format));
                 return -EINVAL;
         }
 
@@ -1329,6 +1370,18 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
         WREG32(EVERGREEN_GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
         WREG32(EVERGREEN_GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
 
+        /*
+         * The LUT only has 256 slots for indexing by a 8 bpc fb. Bypass the LUT
+         * for > 8 bpc scanout to avoid truncation of fb indices to 8 msb's, to
+         * retain the full precision throughout the pipeline.
+         */
+        WREG32_P(EVERGREEN_GRPH_LUT_10BIT_BYPASS_CONTROL + radeon_crtc->crtc_offset,
+                 (bypass_lut ? EVERGREEN_LUT_10BIT_BYPASS_EN : 0),
+                 ~EVERGREEN_LUT_10BIT_BYPASS_EN);
+
+        if (bypass_lut)
+                DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
+
         WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
         WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
         WREG32(EVERGREEN_GRPH_X_START + radeon_crtc->crtc_offset, 0);
@@ -1396,6 +1449,7 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
         u32 fb_swap = R600_D1GRPH_SWAP_ENDIAN_NONE;
         u32 tmp, viewport_w, viewport_h;
         int r;
+        bool bypass_lut = false;
 
         /* no fb bound */
         if (!atomic && !crtc->primary->fb) {
@@ -1433,18 +1487,30 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
         radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
         radeon_bo_unreserve(rbo);
 
-        switch (target_fb->bits_per_pixel) {
-        case 8:
+        switch (target_fb->pixel_format) {
+        case DRM_FORMAT_C8:
                 fb_format =
                     AVIVO_D1GRPH_CONTROL_DEPTH_8BPP |
                     AVIVO_D1GRPH_CONTROL_8BPP_INDEXED;
                 break;
-        case 15:
+        case DRM_FORMAT_XRGB4444:
+        case DRM_FORMAT_ARGB4444:
+                fb_format =
+                    AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
+                    AVIVO_D1GRPH_CONTROL_16BPP_ARGB4444;
+#ifdef __BIG_ENDIAN
+                fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
+#endif
+                break;
+        case DRM_FORMAT_XRGB1555:
                 fb_format =
                     AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
                     AVIVO_D1GRPH_CONTROL_16BPP_ARGB1555;
+#ifdef __BIG_ENDIAN
+                fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
+#endif
                 break;
-        case 16:
+        case DRM_FORMAT_RGB565:
                 fb_format =
                     AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
                     AVIVO_D1GRPH_CONTROL_16BPP_RGB565;
@@ -1452,8 +1518,8 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
                 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
 #endif
                 break;
-        case 24:
-        case 32:
+        case DRM_FORMAT_XRGB8888:
+        case DRM_FORMAT_ARGB8888:
                 fb_format =
                     AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
                     AVIVO_D1GRPH_CONTROL_32BPP_ARGB8888;
@@ -1461,9 +1527,20 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
                 fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
 #endif
                 break;
+        case DRM_FORMAT_XRGB2101010:
+        case DRM_FORMAT_ARGB2101010:
+                fb_format =
+                    AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
+                    AVIVO_D1GRPH_CONTROL_32BPP_ARGB2101010;
+#ifdef __BIG_ENDIAN
+                fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
+#endif
+                /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
+                bypass_lut = true;
+                break;
         default:
-                DRM_ERROR("Unsupported screen depth %d\n",
-                          target_fb->bits_per_pixel);
+                DRM_ERROR("Unsupported screen format %s\n",
+                          drm_get_format_name(target_fb->pixel_format));
                 return -EINVAL;
         }
 
@@ -1502,6 +1579,13 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
         if (rdev->family >= CHIP_R600)
                 WREG32(R600_D1GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
 
+        /* LUT only has 256 slots for 8 bpc fb. Bypass for > 8 bpc scanout for precision */
+        WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset,
+                 (bypass_lut ? AVIVO_LUT_10BIT_BYPASS_EN : 0), ~AVIVO_LUT_10BIT_BYPASS_EN);
+
+        if (bypass_lut)
+                DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
+
         WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
         WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
         WREG32(AVIVO_D1GRPH_X_START + radeon_crtc->crtc_offset, 0);
diff --git a/drivers/gpu/drm/radeon/evergreen_reg.h b/drivers/gpu/drm/radeon/evergreen_reg.h
index a0f63ff5a5e9..333d143fca2c 100644
--- a/drivers/gpu/drm/radeon/evergreen_reg.h
+++ b/drivers/gpu/drm/radeon/evergreen_reg.h
@@ -116,6 +116,8 @@
 #       define EVERGREEN_GRPH_ARRAY_LINEAR_ALIGNED      1
 #       define EVERGREEN_GRPH_ARRAY_1D_TILED_THIN1      2
 #       define EVERGREEN_GRPH_ARRAY_2D_TILED_THIN1      4
+#define EVERGREEN_GRPH_LUT_10BIT_BYPASS_CONTROL         0x6808
+#       define EVERGREEN_LUT_10BIT_BYPASS_EN            (1 << 8)
 #define EVERGREEN_GRPH_SWAP_CONTROL                     0x680c
 #       define EVERGREEN_GRPH_ENDIAN_SWAP(x)            (((x) & 0x3) << 0)
 #       define EVERGREEN_GRPH_ENDIAN_NONE               0
diff --git a/drivers/gpu/drm/radeon/r500_reg.h b/drivers/gpu/drm/radeon/r500_reg.h
index 1dd0d32993d5..136b7bc7cd20 100644
--- a/drivers/gpu/drm/radeon/r500_reg.h
+++ b/drivers/gpu/drm/radeon/r500_reg.h
@@ -402,6 +402,7 @@
  * block and vice versa.  This applies to GRPH, CUR, etc.
  */
 #define AVIVO_D1GRPH_LUT_SEL                                    0x6108
+#       define AVIVO_LUT_10BIT_BYPASS_EN                        (1 << 8)
 #define AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS                    0x6110
 #define R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH                0x6914
 #define R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH                0x6114
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 933c5c39654d..1b9177ed181f 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1288,17 +1288,15 @@ static int radeon_dvi_mode_valid(struct drm_connector *connector,
                     (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
                     (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
                         return MODE_OK;
-                else if (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_A) {
-                        if (ASIC_IS_DCE6(rdev)) {
-                                /* HDMI 1.3+ supports max clock of 340 Mhz */
-                                if (mode->clock > 340000)
-                                        return MODE_CLOCK_HIGH;
-                                else
-                                        return MODE_OK;
-                        } else
+                else if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
+                        /* HDMI 1.3+ supports max clock of 340 Mhz */
+                        if (mode->clock > 340000)
                                 return MODE_CLOCK_HIGH;
-                } else
+                        else
+                                return MODE_OK;
+                } else {
                         return MODE_CLOCK_HIGH;
+                }
         }
 
         /* check against the max pixel clock */
@@ -1549,6 +1547,8 @@ out:
 static int radeon_dp_mode_valid(struct drm_connector *connector,
                                   struct drm_display_mode *mode)
 {
+        struct drm_device *dev = connector->dev;
+        struct radeon_device *rdev = dev->dev_private;
         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
         struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
 
@@ -1579,14 +1579,23 @@ static int radeon_dp_mode_valid(struct drm_connector *connector,
                                         return MODE_PANEL;
                         }
                 }
-                return MODE_OK;
         } else {
                 if ((radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
-                    (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
+                    (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
                         return radeon_dp_mode_valid_helper(connector, mode);
-                else
-                        return MODE_OK;
+                } else {
+                        if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
+                                /* HDMI 1.3+ supports max clock of 340 Mhz */
+                                if (mode->clock > 340000)
+                                        return MODE_CLOCK_HIGH;
+                        } else {
+                                if (mode->clock > 165000)
+                                        return MODE_CLOCK_HIGH;
+                        }
+                }
         }
+
+        return MODE_OK;
 }
 
 static const struct drm_connector_helper_funcs radeon_dp_connector_helper_funcs = {
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 5ed617056b9c..8fc362aa6a1a 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -66,7 +66,8 @@ static void avivo_crtc_load_lut(struct drm_crtc *crtc)
                              (radeon_crtc->lut_b[i] << 0));
         }
 
-        WREG32(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id);
+        /* Only change bit 0 of LUT_SEL, other bits are set elsewhere */
+        WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id, ~1);
 }
 
 static void dce4_crtc_load_lut(struct drm_crtc *crtc)
@@ -357,8 +358,9 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id)
 
         spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
 
+        drm_vblank_put(rdev->ddev, radeon_crtc->crtc_id);
         radeon_fence_unref(&work->fence);
-        radeon_irq_kms_pflip_irq_get(rdev, work->crtc_id);
+        radeon_irq_kms_pflip_irq_put(rdev, work->crtc_id);
         queue_work(radeon_crtc->flip_queue, &work->unpin_work);
 }
 
@@ -459,6 +461,12 @@ static void radeon_flip_work_func(struct work_struct *__work)
                 base &= ~7;
         }
 
+        r = drm_vblank_get(crtc->dev, radeon_crtc->crtc_id);
+        if (r) {
+                DRM_ERROR("failed to get vblank before flip\n");
+                goto pflip_cleanup;
+        }
+
         /* We borrow the event spin lock for protecting flip_work */
         spin_lock_irqsave(&crtc->dev->event_lock, flags);
 
@@ -473,6 +481,16 @@ static void radeon_flip_work_func(struct work_struct *__work)
 
         return;
 
+pflip_cleanup:
+        if (unlikely(radeon_bo_reserve(work->new_rbo, false) != 0)) {
+                DRM_ERROR("failed to reserve new rbo in error path\n");
+                goto cleanup;
+        }
+        if (unlikely(radeon_bo_unpin(work->new_rbo) != 0)) {
+                DRM_ERROR("failed to unpin new rbo in error path\n");
+        }
+        radeon_bo_unreserve(work->new_rbo);
+
 cleanup:
         drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base);
         radeon_fence_unref(&work->fence);
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 620d1004a1e7..9f7d5859cf65 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -676,6 +676,16 @@ config I2C_RIIC
           This driver can also be built as a module.  If so, the module
           will be called i2c-riic.
 
+config I2C_RK3X
+        tristate "Rockchip RK3xxx I2C adapter"
+        depends on OF
+        help
+          Say Y here to include support for the I2C adapter in Rockchip RK3xxx
+          SoCs.
+
+          This driver can also be built as a module. If so, the module will
+          be called i2c-rk3x.
+
 config HAVE_S3C2410_I2C
         bool
         help
@@ -764,6 +774,19 @@ config I2C_STU300
           This driver can also be built as a module. If so, the module
           will be called i2c-stu300.
 
+config I2C_SUN6I_P2WI
+        tristate "Allwinner sun6i internal P2WI controller"
+        depends on RESET_CONTROLLER
+        depends on MACH_SUN6I || COMPILE_TEST
+        help
+          If you say yes to this option, support will be included for the
+          P2WI (Push/Pull 2 Wire Interface) controller embedded in some sunxi
+          SOCs.
+          The P2WI looks like an SMBus controller (which supports only byte
+          accesses), except that it only supports one slave device.
+          This interface is used to connect to specific PMIC devices (like the
+          AXP221).
+
 config I2C_TEGRA
         tristate "NVIDIA Tegra internal I2C controller"
         depends on ARCH_TEGRA
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 298692cc6000..dd9a7f8e873f 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -66,6 +66,7 @@ obj-$(CONFIG_I2C_PXA)		+= i2c-pxa.o
 obj-$(CONFIG_I2C_PXA_PCI)       += i2c-pxa-pci.o
 obj-$(CONFIG_I2C_QUP)           += i2c-qup.o
 obj-$(CONFIG_I2C_RIIC)          += i2c-riic.o
+obj-$(CONFIG_I2C_RK3X)          += i2c-rk3x.o
 obj-$(CONFIG_I2C_S3C2410)       += i2c-s3c2410.o
 obj-$(CONFIG_I2C_S6000)         += i2c-s6000.o
 obj-$(CONFIG_I2C_SH7760)        += i2c-sh7760.o
@@ -74,6 +75,7 @@ obj-$(CONFIG_I2C_SIMTEC)	+= i2c-simtec.o
 obj-$(CONFIG_I2C_SIRF)          += i2c-sirf.o
 obj-$(CONFIG_I2C_ST)            += i2c-st.o
 obj-$(CONFIG_I2C_STU300)        += i2c-stu300.o
+obj-$(CONFIG_I2C_SUN6I_P2WI)    += i2c-sun6i-p2wi.o
 obj-$(CONFIG_I2C_TEGRA)         += i2c-tegra.o
 obj-$(CONFIG_I2C_VERSATILE)     += i2c-versatile.o
 obj-$(CONFIG_I2C_WMT)           += i2c-wmt.o
diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c
new file mode 100644
index 000000000000..a9791509966a
--- /dev/null
+++ b/drivers/i2c/busses/i2c-rk3x.c
@@ -0,0 +1,763 @@
+/*
+ * Driver for I2C adapter in Rockchip RK3xxx SoC
+ *
+ * Max Schwarz <max.schwarz@online.de>
+ * based on the patches by Rockchip Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/spinlock.h>
+#include <linux/clk.h>
+#include <linux/wait.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+
+
+/* Register Map */
+#define REG_CON        0x00 /* control register */
+#define REG_CLKDIV     0x04 /* clock divisor register */
+#define REG_MRXADDR    0x08 /* slave address for REGISTER_TX */
+#define REG_MRXRADDR   0x0c /* slave register address for REGISTER_TX */
+#define REG_MTXCNT     0x10 /* number of bytes to be transmitted */
+#define REG_MRXCNT     0x14 /* number of bytes to be received */
+#define REG_IEN        0x18 /* interrupt enable */
+#define REG_IPD        0x1c /* interrupt pending */
+#define REG_FCNT       0x20 /* finished count */
+
+/* Data buffer offsets */
+#define TXBUFFER_BASE 0x100
+#define RXBUFFER_BASE 0x200
+
+/* REG_CON bits */
+#define REG_CON_EN        BIT(0)
+enum {
+        REG_CON_MOD_TX = 0,      /* transmit data */
+        REG_CON_MOD_REGISTER_TX, /* select register and restart */
+        REG_CON_MOD_RX,          /* receive data */
+        REG_CON_MOD_REGISTER_RX, /* broken: transmits read addr AND writes
+                                  * register addr */
+};
+#define REG_CON_MOD(mod)  ((mod) << 1)
+#define REG_CON_MOD_MASK  (BIT(1) | BIT(2))
+#define REG_CON_START     BIT(3)
+#define REG_CON_STOP      BIT(4)
+#define REG_CON_LASTACK   BIT(5) /* 1: send NACK after last received byte */
+#define REG_CON_ACTACK    BIT(6) /* 1: stop if NACK is received */
+
+/* REG_MRXADDR bits */
+#define REG_MRXADDR_VALID(x) BIT(24 + (x)) /* [x*8+7:x*8] of MRX[R]ADDR valid */
+
+/* REG_IEN/REG_IPD bits */
+#define REG_INT_BTF       BIT(0) /* a byte was transmitted */
+#define REG_INT_BRF       BIT(1) /* a byte was received */
+#define REG_INT_MBTF      BIT(2) /* master data transmit finished */
+#define REG_INT_MBRF      BIT(3) /* master data receive finished */
+#define REG_INT_START     BIT(4) /* START condition generated */
+#define REG_INT_STOP      BIT(5) /* STOP condition generated */
+#define REG_INT_NAKRCV    BIT(6) /* NACK received */
+#define REG_INT_ALL       0x7f
+
+/* Constants */
+#define WAIT_TIMEOUT      200 /* ms */
+#define DEFAULT_SCL_RATE  (100 * 1000) /* Hz */
+
+enum rk3x_i2c_state {
+        STATE_IDLE,
+        STATE_START,
+        STATE_READ,
+        STATE_WRITE,
+        STATE_STOP
+};
+
+/**
+ * @grf_offset: offset inside the grf regmap for setting the i2c type
+ */
+struct rk3x_i2c_soc_data {
+        int grf_offset;
+};
+
+struct rk3x_i2c {
+        struct i2c_adapter adap;
+        struct device *dev;
+        struct rk3x_i2c_soc_data *soc_data;
+
+        /* Hardware resources */
+        void __iomem *regs;
+        struct clk *clk;
+
+        /* Settings */
+        unsigned int scl_frequency;
+
+        /* Synchronization & notification */
+        spinlock_t lock;
+        wait_queue_head_t wait;
+        bool busy;
+
+        /* Current message */
+        struct i2c_msg *msg;
+        u8 addr;
+        unsigned int mode;
+        bool is_last_msg;
+
+        /* I2C state machine */
+        enum rk3x_i2c_state state;
+        unsigned int processed; /* sent/received bytes */
+        int error;
+};
+
+static inline void i2c_writel(struct rk3x_i2c *i2c, u32 value,
+                              unsigned int offset)
+{
+        writel(value, i2c->regs + offset);
+}
+
+static inline u32 i2c_readl(struct rk3x_i2c *i2c, unsigned int offset)
+{
+        return readl(i2c->regs + offset);
+}
+
+/* Reset all interrupt pending bits */
+static inline void rk3x_i2c_clean_ipd(struct rk3x_i2c *i2c)
+{
+        i2c_writel(i2c, REG_INT_ALL, REG_IPD);
+}
+
+/**
+ * Generate a START condition, which triggers a REG_INT_START interrupt.
+ */
+static void rk3x_i2c_start(struct rk3x_i2c *i2c)
+{
+        u32 val;
+
+        rk3x_i2c_clean_ipd(i2c);
+        i2c_writel(i2c, REG_INT_START, REG_IEN);
+
+        /* enable adapter with correct mode, send START condition */
+        val = REG_CON_EN | REG_CON_MOD(i2c->mode) | REG_CON_START;
+
+        /* if we want to react to NACK, set ACTACK bit */
+        if (!(i2c->msg->flags & I2C_M_IGNORE_NAK))
+                val |= REG_CON_ACTACK;
+
+        i2c_writel(i2c, val, REG_CON);
+}
+
+/**
+ * Generate a STOP condition, which triggers a REG_INT_STOP interrupt.
+ *
+ * @error: Error code to return in rk3x_i2c_xfer
+ */
+static void rk3x_i2c_stop(struct rk3x_i2c *i2c, int error)
+{
+        unsigned int ctrl;
+
+        i2c->processed = 0;
+        i2c->msg = NULL;
+        i2c->error = error;
+
+        if (i2c->is_last_msg) {
+                /* Enable stop interrupt */
+                i2c_writel(i2c, REG_INT_STOP, REG_IEN);
+
+                i2c->state = STATE_STOP;
+
+                ctrl = i2c_readl(i2c, REG_CON);
+                ctrl |= REG_CON_STOP;
+                i2c_writel(i2c, ctrl, REG_CON);
+        } else {
+                /* Signal rk3x_i2c_xfer to start the next message. */
+                i2c->busy = false;
+                i2c->state = STATE_IDLE;
+
+                /*
+                 * The HW is actually not capable of REPEATED START. But we can
+                 * get the intended effect by resetting its internal state
+                 * and issuing an ordinary START.
+                 */
+                i2c_writel(i2c, 0, REG_CON);
+
+                /* signal that we are finished with the current msg */
+                wake_up(&i2c->wait);
+        }
+}
+
+/**
+ * Setup a read according to i2c->msg
+ */
+static void rk3x_i2c_prepare_read(struct rk3x_i2c *i2c)
+{
+        unsigned int len = i2c->msg->len - i2c->processed;
+        u32 con;
+
+        con = i2c_readl(i2c, REG_CON);
+
+        /*
+         * The hw can read up to 32 bytes at a time. If we need more than one
+         * chunk, send an ACK after the last byte of the current chunk.
+         */
+        if (unlikely(len > 32)) {
+                len = 32;
+                con &= ~REG_CON_LASTACK;
+        } else {
+                con |= REG_CON_LASTACK;
+        }
+
+        /* make sure we are in plain RX mode if we read a second chunk */
+        if (i2c->processed != 0) {
+                con &= ~REG_CON_MOD_MASK;
+                con |= REG_CON_MOD(REG_CON_MOD_RX);
+        }
+
+        i2c_writel(i2c, con, REG_CON);
+        i2c_writel(i2c, len, REG_MRXCNT);
+}
+
+/**
+ * Fill the transmit buffer with data from i2c->msg
+ */
+static void rk3x_i2c_fill_transmit_buf(struct rk3x_i2c *i2c)
+{
+        unsigned int i, j;
+        u32 cnt = 0;
+        u32 val;
+        u8 byte;
+
+        for (i = 0; i < 8; ++i) {
+                val = 0;
+                for (j = 0; j < 4; ++j) {
+                        if (i2c->processed == i2c->msg->len)
+                                break;
+
+                        if (i2c->processed == 0 && cnt == 0)
+                                byte = (i2c->addr & 0x7f) << 1;
+                        else
+                                byte = i2c->msg->buf[i2c->processed++];
+
+                        val |= byte << (j * 8);
+                        cnt++;
+                }
+
+                i2c_writel(i2c, val, TXBUFFER_BASE + 4 * i);
+
+                if (i2c->processed == i2c->msg->len)
+                        break;
+        }
+
+        i2c_writel(i2c, cnt, REG_MTXCNT);
+}
+
+
+/* IRQ handlers for individual states */
+
+static void rk3x_i2c_handle_start(struct rk3x_i2c *i2c, unsigned int ipd)
+{
+        if (!(ipd & REG_INT_START)) {
+                rk3x_i2c_stop(i2c, -EIO);
+                dev_warn(i2c->dev, "unexpected irq in START: 0x%x\n", ipd);
+                rk3x_i2c_clean_ipd(i2c);
+                return;
+        }
+
+        /* ack interrupt */
+        i2c_writel(i2c, REG_INT_START, REG_IPD);
+
+        /* disable start bit */
+        i2c_writel(i2c, i2c_readl(i2c, REG_CON) & ~REG_CON_START, REG_CON);
+
+        /* enable appropriate interrupts and transition */
+        if (i2c->mode == REG_CON_MOD_TX) {
+                i2c_writel(i2c, REG_INT_MBTF | REG_INT_NAKRCV, REG_IEN);
+                i2c->state = STATE_WRITE;
+                rk3x_i2c_fill_transmit_buf(i2c);
+        } else {
+                /* in any other case, we are going to be reading. */
+                i2c_writel(i2c, REG_INT_MBRF | REG_INT_NAKRCV, REG_IEN);
+                i2c->state = STATE_READ;
+                rk3x_i2c_prepare_read(i2c);
+        }
+}
+
+static void rk3x_i2c_handle_write(struct rk3x_i2c *i2c, unsigned int ipd)
+{
+        if (!(ipd & REG_INT_MBTF)) {
+                rk3x_i2c_stop(i2c, -EIO);
+                dev_err(i2c->dev, "unexpected irq in WRITE: 0x%x\n", ipd);
+                rk3x_i2c_clean_ipd(i2c);
+                return;
+        }
+
+        /* ack interrupt */
+        i2c_writel(i2c, REG_INT_MBTF, REG_IPD);
+
+        /* are we finished? */
+        if (i2c->processed == i2c->msg->len)
+                rk3x_i2c_stop(i2c, i2c->error);
+        else
+                rk3x_i2c_fill_transmit_buf(i2c);
+}
+
+static void rk3x_i2c_handle_read(struct rk3x_i2c *i2c, unsigned int ipd)
+{
+        unsigned int i;
+        unsigned int len = i2c->msg->len - i2c->processed;
+        u32 uninitialized_var(val);
+        u8 byte;
+
+        /* we only care for MBRF here. */
+        if (!(ipd & REG_INT_MBRF))
+                return;
+
+        /* ack interrupt */
+        i2c_writel(i2c, REG_INT_MBRF, REG_IPD);
+
+        /* read the data from receive buffer */
+        for (i = 0; i < len; ++i) {
+                if (i % 4 == 0)
+                        val = i2c_readl(i2c, RXBUFFER_BASE + (i / 4) * 4);
+
+                byte = (val >> ((i % 4) * 8)) & 0xff;
+                i2c->msg->buf[i2c->processed++] = byte;
+        }
+
+        /* are we finished? */
+        if (i2c->processed == i2c->msg->len)
+                rk3x_i2c_stop(i2c, i2c->error);
+        else
+                rk3x_i2c_prepare_read(i2c);
+}
+
+static void rk3x_i2c_handle_stop(struct rk3x_i2c *i2c, unsigned int ipd)
+{
+        unsigned int con;
+
+        if (!(ipd & REG_INT_STOP)) {
+                rk3x_i2c_stop(i2c, -EIO);
+                dev_err(i2c->dev, "unexpected irq in STOP: 0x%x\n", ipd);
+                rk3x_i2c_clean_ipd(i2c);
+                return;
+        }
+
+        /* ack interrupt */
+        i2c_writel(i2c, REG_INT_STOP, REG_IPD);
+
+        /* disable STOP bit */
+        con = i2c_readl(i2c, REG_CON);
+        con &= ~REG_CON_STOP;
+        i2c_writel(i2c, con, REG_CON);
+
+        i2c->busy = false;
+        i2c->state = STATE_IDLE;
+
+        /* signal rk3x_i2c_xfer that we are finished */
+        wake_up(&i2c->wait);
+}
+
+static irqreturn_t rk3x_i2c_irq(int irqno, void *dev_id)
+{
+        struct rk3x_i2c *i2c = dev_id;
+        unsigned int ipd;
+
+        spin_lock(&i2c->lock);
+
+        ipd = i2c_readl(i2c, REG_IPD);
+        if (i2c->state == STATE_IDLE) {
+                dev_warn(i2c->dev, "irq in STATE_IDLE, ipd = 0x%x\n", ipd);
+                rk3x_i2c_clean_ipd(i2c);
+                goto out;
+        }
+
+        dev_dbg(i2c->dev, "IRQ: state %d, ipd: %x\n", i2c->state, ipd);
+
+        /* Clean interrupt bits we don't care about */
+        ipd &= ~(REG_INT_BRF | REG_INT_BTF);
+
+        if (ipd & REG_INT_NAKRCV) {
+                /*
+                 * We got a NACK in the last operation. Depending on whether
+                 * IGNORE_NAK is set, we have to stop the operation and report
+                 * an error.
+                 */
+                i2c_writel(i2c, REG_INT_NAKRCV, REG_IPD);
+
+                ipd &= ~REG_INT_NAKRCV;
+
+                if (!(i2c->msg->flags & I2C_M_IGNORE_NAK))
+                        rk3x_i2c_stop(i2c, -ENXIO);
+        }
+
+        /* is there anything left to handle? */
+        if (unlikely(ipd == 0))
+                goto out;
+
+        switch (i2c->state) {
+        case STATE_START:
+                rk3x_i2c_handle_start(i2c, ipd);
+                break;
+        case STATE_WRITE:
+                rk3x_i2c_handle_write(i2c, ipd);
+                break;
+        case STATE_READ:
+                rk3x_i2c_handle_read(i2c, ipd);
+                break;
+        case STATE_STOP:
+                rk3x_i2c_handle_stop(i2c, ipd);
+                break;
+        case STATE_IDLE:
+                break;
+        }
+
+out:
+        spin_unlock(&i2c->lock);
+        return IRQ_HANDLED;
+}
+
+static void rk3x_i2c_set_scl_rate(struct rk3x_i2c *i2c, unsigned long scl_rate)
+{
+        unsigned long i2c_rate = clk_get_rate(i2c->clk);
+        unsigned int div;
+
+        /* SCL rate = (clk rate) / (8 * DIV) */
+        div = DIV_ROUND_UP(i2c_rate, scl_rate * 8);
+
+        /* The lower and upper half of the CLKDIV reg describe the length of
+         * SCL low & high periods. */
+        div = DIV_ROUND_UP(div, 2);
+
+        i2c_writel(i2c, (div << 16) | (div & 0xffff), REG_CLKDIV);
+}
+
+/**
+ * Setup I2C registers for an I2C operation specified by msgs, num.
+ *
+ * Must be called with i2c->lock held.
+ *
+ * @msgs: I2C msgs to process
+ * @num: Number of msgs
+ *
+ * returns: Number of I2C msgs processed or negative in case of error
+ */
+static int rk3x_i2c_setup(struct rk3x_i2c *i2c, struct i2c_msg *msgs, int num)
+{
+        u32 addr = (msgs[0].addr & 0x7f) << 1;
+        int ret = 0;
+
+        /*
+         * The I2C adapter can issue a small (len < 4) write packet before
+         * reading. This speeds up SMBus-style register reads.
+         * The MRXADDR/MRXRADDR hold the slave address and the slave register
+         * address in this case.
+         */
+
+        if (num >= 2 && msgs[0].len < 4 &&
+            !(msgs[0].flags & I2C_M_RD) && (msgs[1].flags & I2C_M_RD)) {
+                u32 reg_addr = 0;
+                int i;
+
+                dev_dbg(i2c->dev, "Combined write/read from addr 0x%x\n",
+                        addr >> 1);
+
+                /* Fill MRXRADDR with the register address(es) */
+                for (i = 0; i < msgs[0].len; ++i) {
+                        reg_addr |= msgs[0].buf[i] << (i * 8);
+                        reg_addr |= REG_MRXADDR_VALID(i);
+                }
+
+                /* msgs[0] is handled by hw. */
+                i2c->msg = &msgs[1];
+
+                i2c->mode = REG_CON_MOD_REGISTER_TX;
+
+                i2c_writel(i2c, addr | REG_MRXADDR_VALID(0), REG_MRXADDR);
+                i2c_writel(i2c, reg_addr, REG_MRXRADDR);
+
+                ret = 2;
+        } else {
+                /*
+                 * We'll have to do it the boring way and process the msgs
+                 * one-by-one.
+                 */
+
+                if (msgs[0].flags & I2C_M_RD) {
+                        addr |= 1; /* set read bit */
+
+                        /*
+                         * We have to transmit the slave addr first. Use
+                         * MOD_REGISTER_TX for that purpose.
+                         */
+                        i2c->mode = REG_CON_MOD_REGISTER_TX;
+                        i2c_writel(i2c, addr | REG_MRXADDR_VALID(0),
+                                   REG_MRXADDR);
+                        i2c_writel(i2c, 0, REG_MRXRADDR);
+                } else {
+                        i2c->mode = REG_CON_MOD_TX;
+                }
+
+                i2c->msg = &msgs[0];
+
+                ret = 1;
+        }
+
+        i2c->addr = msgs[0].addr;
+        i2c->busy = true;
+        i2c->state = STATE_START;
+        i2c->processed = 0;
+        i2c->error = 0;
+
+        rk3x_i2c_clean_ipd(i2c);
+
+        return ret;
+}
+
+static int rk3x_i2c_xfer(struct i2c_adapter *adap,
+                         struct i2c_msg *msgs, int num)
+{
+        struct rk3x_i2c *i2c = (struct rk3x_i2c *)adap->algo_data;
+        unsigned long timeout, flags;
+        int ret = 0;
+        int i;
+
+        spin_lock_irqsave(&i2c->lock, flags);
+
+        clk_enable(i2c->clk);
+
+        /* The clock rate might have changed, so setup the divider again */
+        rk3x_i2c_set_scl_rate(i2c, i2c->scl_frequency);
+
+        i2c->is_last_msg = false;
+
+        /*
+         * Process msgs. We can handle more than one message at once (see
+         * rk3x_i2c_setup()).
+         */
+        for (i = 0; i < num; i += ret) {
+                ret = rk3x_i2c_setup(i2c, msgs + i, num - i);
+
+                if (ret < 0) {
+                        dev_err(i2c->dev, "rk3x_i2c_setup() failed\n");
+                        break;
+                }
+
+                if (i + ret >= num)
+                        i2c->is_last_msg = true;
+
+                spin_unlock_irqrestore(&i2c->lock, flags);
+
+                rk3x_i2c_start(i2c);
+
+                timeout = wait_event_timeout(i2c->wait, !i2c->busy,
+                                             msecs_to_jiffies(WAIT_TIMEOUT));
+
+                spin_lock_irqsave(&i2c->lock, flags);
+
+                if (timeout == 0) {
+                        dev_err(i2c->dev, "timeout, ipd: 0x%02x, state: %d\n",
+                                i2c_readl(i2c, REG_IPD), i2c->state);
+
+                        /* Force a STOP condition without interrupt */
+                        i2c_writel(i2c, 0, REG_IEN);
+                        i2c_writel(i2c, REG_CON_EN | REG_CON_STOP, REG_CON);
+
+                        i2c->state = STATE_IDLE;
+
+                        ret = -ETIMEDOUT;
+                        break;
+                }
+
+                if (i2c->error) {
+                        ret = i2c->error;
+                        break;
+                }
+        }
+
+        clk_disable(i2c->clk);
+        spin_unlock_irqrestore(&i2c->lock, flags);
+
+        return ret;
+}
+
+static u32 rk3x_i2c_func(struct i2c_adapter *adap)
+{
+        return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_PROTOCOL_MANGLING;
+}
+
+static const struct i2c_algorithm rk3x_i2c_algorithm = {
+        .master_xfer            = rk3x_i2c_xfer,
+        .functionality          = rk3x_i2c_func,
+};
+
+static struct rk3x_i2c_soc_data soc_data[3] = {
+        { .grf_offset = 0x154 }, /* rk3066 */
+        { .grf_offset = 0x0a4 }, /* rk3188 */
+        { .grf_offset = -1 },    /* no I2C switching needed */
+};
+
+static const struct of_device_id rk3x_i2c_match[] = {
+        { .compatible = "rockchip,rk3066-i2c", .data = (void *)&soc_data[0] },
+        { .compatible = "rockchip,rk3188-i2c", .data = (void *)&soc_data[1] },
+        { .compatible = "rockchip,rk3288-i2c", .data = (void *)&soc_data[2] },
+        {},
+};
+
+static int rk3x_i2c_probe(struct platform_device *pdev)
+{
+        struct device_node *np = pdev->dev.of_node;
+        const struct of_device_id *match;
+        struct rk3x_i2c *i2c;
+        struct resource *mem;
+        int ret = 0;
+        int bus_nr;
+        u32 value;
+        int irq;
+
+        i2c = devm_kzalloc(&pdev->dev, sizeof(struct rk3x_i2c), GFP_KERNEL);
+        if (!i2c)
+                return -ENOMEM;
+
+        match = of_match_node(rk3x_i2c_match, np);
+        i2c->soc_data = (struct rk3x_i2c_soc_data *)match->data;
+
+        if (of_property_read_u32(pdev->dev.of_node, "clock-frequency",
+                                 &i2c->scl_frequency)) {
+                dev_info(&pdev->dev, "using default SCL frequency: %d\n",
+                         DEFAULT_SCL_RATE);
+                i2c->scl_frequency = DEFAULT_SCL_RATE;
+        }
+
+        if (i2c->scl_frequency == 0 || i2c->scl_frequency > 400 * 1000) {
+                dev_warn(&pdev->dev, "invalid SCL frequency specified.\n");
+                dev_warn(&pdev->dev, "using default SCL frequency: %d\n",
+                         DEFAULT_SCL_RATE);
+                i2c->scl_frequency = DEFAULT_SCL_RATE;
+        }
+
+        strlcpy(i2c->adap.name, "rk3x-i2c", sizeof(i2c->adap.name));
+        i2c->adap.owner = THIS_MODULE;
+        i2c->adap.algo = &rk3x_i2c_algorithm;
+        i2c->adap.retries = 3;
+        i2c->adap.dev.of_node = np;
+        i2c->adap.algo_data = i2c;
+        i2c->adap.dev.parent = &pdev->dev;
+
+        i2c->dev = &pdev->dev;
+
+        spin_lock_init(&i2c->lock);
+        init_waitqueue_head(&i2c->wait);
+
+        i2c->clk = devm_clk_get(&pdev->dev, NULL);
+        if (IS_ERR(i2c->clk)) {
+                dev_err(&pdev->dev, "cannot get clock\n");
+                return PTR_ERR(i2c->clk);
+        }
+
+        mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        i2c->regs = devm_ioremap_resource(&pdev->dev, mem);
+        if (IS_ERR(i2c->regs))
+                return PTR_ERR(i2c->regs);
+
+        /* Try to set the I2C adapter number from dt */
+        bus_nr = of_alias_get_id(np, "i2c");
+
+        /*
+         * Switch to new interface if the SoC also offers the old one.
+         * The control bit is located in the GRF register space.
+         */
+        if (i2c->soc_data->grf_offset >= 0) {
+                struct regmap *grf;
+
+                grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
+                if (IS_ERR(grf)) {
+                        dev_err(&pdev->dev,
+                                "rk3x-i2c needs 'rockchip,grf' property\n");
+                        return PTR_ERR(grf);
+                }
+
+                if (bus_nr < 0) {
+                        dev_err(&pdev->dev, "rk3x-i2c needs i2cX alias");
+                        return -EINVAL;
+                }
+
+                /* 27+i: write mask, 11+i: value */
+                value = BIT(27 + bus_nr) | BIT(11 + bus_nr);
+
+                ret = regmap_write(grf, i2c->soc_data->grf_offset, value);
+                if (ret != 0) {
+                        dev_err(i2c->dev, "Could not write to GRF: %d\n", ret);
+                        return ret;
+                }
+        }
+
+        /* IRQ setup */
+        irq = platform_get_irq(pdev, 0);
+        if (irq < 0) {
+                dev_err(&pdev->dev, "cannot find rk3x IRQ\n");
+                return irq;
+        }
+
+        ret = devm_request_irq(&pdev->dev, irq, rk3x_i2c_irq,
+                               0, dev_name(&pdev->dev), i2c);
+        if (ret < 0) {
+                dev_err(&pdev->dev, "cannot request IRQ\n");
+                return ret;
+        }
+
+        platform_set_drvdata(pdev, i2c);
+
+        ret = clk_prepare(i2c->clk);
+        if (ret < 0) {
+                dev_err(&pdev->dev, "Could not prepare clock\n");
+                return ret;
+        }
+
+        ret = i2c_add_adapter(&i2c->adap);
+        if (ret < 0) {
+                dev_err(&pdev->dev, "Could not register adapter\n");
+                goto err_clk;
+        }
+
+        dev_info(&pdev->dev, "Initialized RK3xxx I2C bus at %p\n", i2c->regs);
+
+        return 0;
+
+err_clk:
+        clk_unprepare(i2c->clk);
+        return ret;
+}
+
+static int rk3x_i2c_remove(struct platform_device *pdev)
+{
+        struct rk3x_i2c *i2c = platform_get_drvdata(pdev);
+
+        i2c_del_adapter(&i2c->adap);
+        clk_unprepare(i2c->clk);
+
+        return 0;
+}
+
+static struct platform_driver rk3x_i2c_driver = {
+        .probe   = rk3x_i2c_probe,
+        .remove  = rk3x_i2c_remove,
+        .driver  = {
+                .owner = THIS_MODULE,
+                .name  = "rk3x-i2c",
+                .of_match_table = rk3x_i2c_match,
+        },
+};
+
+module_platform_driver(rk3x_i2c_driver);
+
+MODULE_DESCRIPTION("Rockchip RK3xxx I2C Bus driver");
+MODULE_AUTHOR("Max Schwarz <max.schwarz@online.de>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/i2c/busses/i2c-sun6i-p2wi.c b/drivers/i2c/busses/i2c-sun6i-p2wi.c
new file mode 100644
index 000000000000..09de4fd12d57
--- /dev/null
+++ b/drivers/i2c/busses/i2c-sun6i-p2wi.c
@@ -0,0 +1,345 @@
+/*
+ * P2WI (Push-Pull Two Wire Interface) bus driver.
+ *
+ * Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * The P2WI controller looks like an SMBus controller which only supports byte
+ * data transfers. But, it differs from standard SMBus protocol on several
+ * aspects:
+ * - it supports only one slave device, and thus drop the address field
+ * - it adds a parity bit every 8bits of data
+ * - only one read access is required to read a byte (instead of a write
+ *   followed by a read access in standard SMBus protocol)
+ * - there's no Ack bit after each byte transfer
+ *
+ * This means this bus cannot be used to interface with standard SMBus
+ * devices (the only known device to support this interface is the AXP221
+ * PMIC).
+ *
+ */
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+
+/* P2WI registers */
+#define P2WI_CTRL               0x0
+#define P2WI_CCR                0x4
+#define P2WI_INTE               0x8
+#define P2WI_INTS               0xc
+#define P2WI_DADDR0             0x10
+#define P2WI_DADDR1             0x14
+#define P2WI_DLEN               0x18
+#define P2WI_DATA0              0x1c
+#define P2WI_DATA1              0x20
+#define P2WI_LCR                0x24
+#define P2WI_PMCR               0x28
+
+/* CTRL fields */
+#define P2WI_CTRL_START_TRANS           BIT(7)
+#define P2WI_CTRL_ABORT_TRANS           BIT(6)
+#define P2WI_CTRL_GLOBAL_INT_ENB        BIT(1)
+#define P2WI_CTRL_SOFT_RST              BIT(0)
+
+/* CLK CTRL fields */
+#define P2WI_CCR_SDA_OUT_DELAY(v)       (((v) & 0x7) << 8)
+#define P2WI_CCR_MAX_CLK_DIV            0xff
+#define P2WI_CCR_CLK_DIV(v)             ((v) & P2WI_CCR_MAX_CLK_DIV)
+
+/* STATUS fields */
+#define P2WI_INTS_TRANS_ERR_ID(v)       (((v) >> 8) & 0xff)
+#define P2WI_INTS_LOAD_BSY              BIT(2)
+#define P2WI_INTS_TRANS_ERR             BIT(1)
+#define P2WI_INTS_TRANS_OVER            BIT(0)
+
+/* DATA LENGTH fields*/
+#define P2WI_DLEN_READ                  BIT(4)
+#define P2WI_DLEN_DATA_LENGTH(v)        ((v - 1) & 0x7)
+
+/* LINE CTRL fields*/
+#define P2WI_LCR_SCL_STATE              BIT(5)
+#define P2WI_LCR_SDA_STATE              BIT(4)
+#define P2WI_LCR_SCL_CTL                BIT(3)
+#define P2WI_LCR_SCL_CTL_EN             BIT(2)
+#define P2WI_LCR_SDA_CTL                BIT(1)
+#define P2WI_LCR_SDA_CTL_EN             BIT(0)
+
+/* PMU MODE CTRL fields */
+#define P2WI_PMCR_PMU_INIT_SEND         BIT(31)
+#define P2WI_PMCR_PMU_INIT_DATA(v)      (((v) & 0xff) << 16)
+#define P2WI_PMCR_PMU_MODE_REG(v)       (((v) & 0xff) << 8)
+#define P2WI_PMCR_PMU_DEV_ADDR(v)       ((v) & 0xff)
+
+#define P2WI_MAX_FREQ                   6000000
+
+struct p2wi {
+        struct i2c_adapter adapter;
+        struct completion complete;
+        unsigned int status;
+        void __iomem *regs;
+        struct clk *clk;
+        struct reset_control *rstc;
+        int slave_addr;
+};
+
+static irqreturn_t p2wi_interrupt(int irq, void *dev_id)
+{
+        struct p2wi *p2wi = dev_id;
+        unsigned long status;
+
+        status = readl(p2wi->regs + P2WI_INTS);
+        p2wi->status = status;
+
+        /* Clear interrupts */
+        status &= (P2WI_INTS_LOAD_BSY | P2WI_INTS_TRANS_ERR |
+                   P2WI_INTS_TRANS_OVER);
+        writel(status, p2wi->regs + P2WI_INTS);
+
+        complete(&p2wi->complete);
+
+        return IRQ_HANDLED;
+}
+
+static u32 p2wi_functionality(struct i2c_adapter *adap)
+{
+        return I2C_FUNC_SMBUS_BYTE_DATA;
+}
+
+static int p2wi_smbus_xfer(struct i2c_adapter *adap, u16 addr,
+                           unsigned short flags, char read_write,
+                           u8 command, int size, union i2c_smbus_data *data)
+{
+        struct p2wi *p2wi = i2c_get_adapdata(adap);
+        unsigned long dlen = P2WI_DLEN_DATA_LENGTH(1);
+
+        if (p2wi->slave_addr >= 0 && addr != p2wi->slave_addr) {
+                dev_err(&adap->dev, "invalid P2WI address\n");
+                return -EINVAL;
+        }
+
+        if (!data)
+                return -EINVAL;
+
+        writel(command, p2wi->regs + P2WI_DADDR0);
+
+        if (read_write == I2C_SMBUS_READ)
+                dlen |= P2WI_DLEN_READ;
+        else
+                writel(data->byte, p2wi->regs + P2WI_DATA0);
+
+        writel(dlen, p2wi->regs + P2WI_DLEN);
+
+        if (readl(p2wi->regs + P2WI_CTRL) & P2WI_CTRL_START_TRANS) {
+                dev_err(&adap->dev, "P2WI bus busy\n");
+                return -EBUSY;
+        }
+
+        reinit_completion(&p2wi->complete);
+
+        writel(P2WI_INTS_LOAD_BSY | P2WI_INTS_TRANS_ERR | P2WI_INTS_TRANS_OVER,
+               p2wi->regs + P2WI_INTE);
+
+        writel(P2WI_CTRL_START_TRANS | P2WI_CTRL_GLOBAL_INT_ENB,
+               p2wi->regs + P2WI_CTRL);
+
+        wait_for_completion(&p2wi->complete);
+
+        if (p2wi->status & P2WI_INTS_LOAD_BSY) {
+                dev_err(&adap->dev, "P2WI bus busy\n");
+                return -EBUSY;
+        }
+
+        if (p2wi->status & P2WI_INTS_TRANS_ERR) {
+                dev_err(&adap->dev, "P2WI bus xfer error\n");
+                return -ENXIO;
+        }
+
+        if (read_write == I2C_SMBUS_READ)
+                data->byte = readl(p2wi->regs + P2WI_DATA0);
+
+        return 0;
+}
+
+static const struct i2c_algorithm p2wi_algo = {
+        .smbus_xfer = p2wi_smbus_xfer,
+        .functionality = p2wi_functionality,
+};
+
+static const struct of_device_id p2wi_of_match_table[] = {
+        { .compatible = "allwinner,sun6i-a31-p2wi" },
+        {}
+};
+MODULE_DEVICE_TABLE(of, p2wi_of_match_table);
+
+static int p2wi_probe(struct platform_device *pdev)
+{
+        struct device *dev = &pdev->dev;
+        struct device_node *np = dev->of_node;
+        struct device_node *childnp;
+        unsigned long parent_clk_freq;
+        u32 clk_freq = 100000;
+        struct resource *r;
+        struct p2wi *p2wi;
+        u32 slave_addr;
+        int clk_div;
+        int irq;
+        int ret;
+
+        of_property_read_u32(np, "clock-frequency", &clk_freq);
+        if (clk_freq > P2WI_MAX_FREQ) {
+                dev_err(dev,
+                        "required clock-frequency (%u Hz) is too high (max = 6MHz)",
+                        clk_freq);
+                return -EINVAL;
+        }
+
+        if (of_get_child_count(np) > 1) {
+                dev_err(dev, "P2WI only supports one slave device\n");
+                return -EINVAL;
+        }
+
+        p2wi = devm_kzalloc(dev, sizeof(struct p2wi), GFP_KERNEL);
+        if (!p2wi)
+                return -ENOMEM;
+
+        p2wi->slave_addr = -1;
+
+        /*
+         * Authorize a p2wi node without any children to be able to use an
+         * i2c-dev from userpace.
+         * In this case the slave_addr is set to -1 and won't be checked when
+         * launching a P2WI transfer.
+         */
+        childnp = of_get_next_available_child(np, NULL);
+        if (childnp) {
+                ret = of_property_read_u32(childnp, "reg", &slave_addr);
+                if (ret) {
+                        dev_err(dev, "invalid slave address on node %s\n",
+                                childnp->full_name);
+                        return -EINVAL;
+                }
+
+                p2wi->slave_addr = slave_addr;
+        }
+
+        r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        p2wi->regs = devm_ioremap_resource(dev, r);
+        if (IS_ERR(p2wi->regs))
+                return PTR_ERR(p2wi->regs);
+
+        strlcpy(p2wi->adapter.name, pdev->name, sizeof(p2wi->adapter.name));
+        irq = platform_get_irq(pdev, 0);
+        if (irq < 0) {
+                dev_err(dev, "failed to retrieve irq: %d\n", irq);
+                return irq;
+        }
+
+        p2wi->clk = devm_clk_get(dev, NULL);
+        if (IS_ERR(p2wi->clk)) {
+                ret = PTR_ERR(p2wi->clk);
+                dev_err(dev, "failed to retrieve clk: %d\n", ret);
+                return ret;
+        }
+
+        ret = clk_prepare_enable(p2wi->clk);
+        if (ret) {
+                dev_err(dev, "failed to enable clk: %d\n", ret);
+                return ret;
+        }
+
+        parent_clk_freq = clk_get_rate(p2wi->clk);
+
+        p2wi->rstc = devm_reset_control_get(dev, NULL);
+        if (IS_ERR(p2wi->rstc)) {
+                ret = PTR_ERR(p2wi->rstc);
+                dev_err(dev, "failed to retrieve reset controller: %d\n", ret);
+                goto err_clk_disable;
+        }
+
+        ret = reset_control_deassert(p2wi->rstc);
+        if (ret) {
+                dev_err(dev, "failed to deassert reset line: %d\n", ret);
+                goto err_clk_disable;
+        }
+
+        init_completion(&p2wi->complete);
+        p2wi->adapter.dev.parent = dev;
+        p2wi->adapter.algo = &p2wi_algo;
+        p2wi->adapter.owner = THIS_MODULE;
+        p2wi->adapter.dev.of_node = pdev->dev.of_node;
+        platform_set_drvdata(pdev, p2wi);
+        i2c_set_adapdata(&p2wi->adapter, p2wi);
+
+        ret = devm_request_irq(dev, irq, p2wi_interrupt, 0, pdev->name, p2wi);
+        if (ret) {
+                dev_err(dev, "can't register interrupt handler irq%d: %d\n",
+                        irq, ret);
+                goto err_reset_assert;
+        }
+
+        writel(P2WI_CTRL_SOFT_RST, p2wi->regs + P2WI_CTRL);
+
+        clk_div = parent_clk_freq / clk_freq;
+        if (!clk_div) {
+                dev_warn(dev,
+                         "clock-frequency is too high, setting it to %lu Hz\n",
+                         parent_clk_freq);
+                clk_div = 1;
+        } else if (clk_div > P2WI_CCR_MAX_CLK_DIV) {
+                dev_warn(dev,
+                         "clock-frequency is too low, setting it to %lu Hz\n",
+                         parent_clk_freq / P2WI_CCR_MAX_CLK_DIV);
+                clk_div = P2WI_CCR_MAX_CLK_DIV;
+        }
+
+        writel(P2WI_CCR_SDA_OUT_DELAY(1) | P2WI_CCR_CLK_DIV(clk_div),
+               p2wi->regs + P2WI_CCR);
+
+        ret = i2c_add_adapter(&p2wi->adapter);
+        if (!ret)
+                return 0;
+
+err_reset_assert:
+        reset_control_assert(p2wi->rstc);
+
+err_clk_disable:
+        clk_disable_unprepare(p2wi->clk);
+
+        return ret;
+}
+
+static int p2wi_remove(struct platform_device *dev)
+{
+        struct p2wi *p2wi = platform_get_drvdata(dev);
+
+        reset_control_assert(p2wi->rstc);
+        clk_disable_unprepare(p2wi->clk);
+        i2c_del_adapter(&p2wi->adapter);
+
+        return 0;
+}
+
+static struct platform_driver p2wi_driver = {
+        .probe  = p2wi_probe,
+        .remove = p2wi_remove,
+        .driver = {
+                .owner = THIS_MODULE,
+                .name = "i2c-sunxi-p2wi",
+                .of_match_table = p2wi_of_match_table,
+        },
+};
+module_platform_driver(p2wi_driver);
+
+MODULE_AUTHOR("Boris BREZILLON <boris.brezillon@free-electrons.com>");
+MODULE_DESCRIPTION("Allwinner P2WI driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 8a5e67c4ced1..772e869c280e 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -510,12 +510,11 @@ static int at91_adc_channel_init(struct iio_dev *idev)
         return idev->num_channels;
 }
 
-static u8 at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
+static int at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
                                              struct at91_adc_trigger *triggers,
                                              const char *trigger_name)
 {
         struct at91_adc_state *st = iio_priv(idev);
-        u8 value = 0;
         int i;
 
         for (i = 0; i < st->trigger_number; i++) {
@@ -528,15 +527,16 @@ static u8 at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
                         return -ENOMEM;
 
                 if (strcmp(trigger_name, name) == 0) {
-                        value = triggers[i].value;
                         kfree(name);
-                        break;
+                        if (triggers[i].value == 0)
+                                return -EINVAL;
+                        return triggers[i].value;
                 }
 
                 kfree(name);
         }
 
-        return value;
+        return -EINVAL;
 }
 
 static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
@@ -546,14 +546,14 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
         struct iio_buffer *buffer = idev->buffer;
         struct at91_adc_reg_desc *reg = st->registers;
         u32 status = at91_adc_readl(st, reg->trigger_register);
-        u8 value;
+        int value;
         u8 bit;
 
         value = at91_adc_get_trigger_value_by_name(idev,
                                                    st->trigger_list,
                                                    idev->trig->name);
-        if (value == 0)
-                return -EINVAL;
+        if (value < 0)
+                return value;
 
         if (state) {
                 st->buffer = kmalloc(idev->scan_bytes, GFP_KERNEL);
diff --git a/drivers/iio/adc/men_z188_adc.c b/drivers/iio/adc/men_z188_adc.c
index 6989c16aec2b..b58d6302521f 100644
--- a/drivers/iio/adc/men_z188_adc.c
+++ b/drivers/iio/adc/men_z188_adc.c
@@ -121,8 +121,8 @@ static int men_z188_probe(struct mcb_device *dev,
         indio_dev->num_channels = ARRAY_SIZE(z188_adc_iio_channels);
 
         mem = mcb_request_mem(dev, "z188-adc");
-        if (!mem)
-                return -ENOMEM;
+        if (IS_ERR(mem))
+                return PTR_ERR(mem);
 
         adc->base = ioremap(mem->start, resource_size(mem));
         if (adc->base == NULL)
diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index 7de1c4c87942..eb86786e698e 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -645,6 +645,7 @@ int twl4030_get_madc_conversion(int channel_no)
         req.channels = (1 << channel_no);
         req.method = TWL4030_MADC_SW2;
         req.active = 0;
+        req.raw = 0;
         req.func_cb = NULL;
         ret = twl4030_madc_conversion(&req);
         if (ret < 0)
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
index 73282cee0c81..a3109a6f4d86 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -75,6 +75,9 @@ int hid_sensor_power_state(struct hid_sensor_common *st, bool state)
                                         (s32)report_val);
         }
 
+        sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
+                                        st->power_state.index,
+                                        &state_val);
         return 0;
 }
 EXPORT_SYMBOL(hid_sensor_power_state);
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 09ea5c481f4c..ea08313af0d2 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -373,8 +373,6 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
 {
         struct ak8975_data *data = iio_priv(indio_dev);
         struct i2c_client *client = data->client;
-        u16 meas_reg;
-        s16 raw;
         int ret;
 
         mutex_lock(&data->lock);
@@ -422,16 +420,11 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
                 dev_err(&client->dev, "Read axis data fails\n");
                 goto exit;
         }
-        meas_reg = ret;
 
         mutex_unlock(&data->lock);
 
-        /* Endian conversion of the measured values. */
-        raw = (s16) (le16_to_cpu(meas_reg));
-
         /* Clamp to valid range. */
-        raw = clamp_t(s16, raw, -4096, 4095);
-        *val = raw;
+        *val = clamp_t(s16, ret, -4096, 4095);
         return IIO_VAL_INT;
 
 exit:
diff --git a/drivers/iio/pressure/mpl3115.c b/drivers/iio/pressure/mpl3115.c
index ba6d0c520e63..01b2e0b18878 100644
--- a/drivers/iio/pressure/mpl3115.c
+++ b/drivers/iio/pressure/mpl3115.c
@@ -98,7 +98,7 @@ static int mpl3115_read_raw(struct iio_dev *indio_dev,
                         mutex_unlock(&data->lock);
                         if (ret < 0)
                                 return ret;
-                        *val = sign_extend32(be32_to_cpu(tmp) >> 12, 23);
+                        *val = be32_to_cpu(tmp) >> 12;
                         return IIO_VAL_INT;
                 case IIO_TEMP: /* in 0.0625 celsius / LSB */
                         mutex_lock(&data->lock);
@@ -112,7 +112,7 @@ static int mpl3115_read_raw(struct iio_dev *indio_dev,
                         mutex_unlock(&data->lock);
                         if (ret < 0)
                                 return ret;
-                        *val = sign_extend32(be32_to_cpu(tmp) >> 20, 15);
+                        *val = sign_extend32(be32_to_cpu(tmp) >> 20, 11);
                         return IIO_VAL_INT;
                 default:
                         return -EINVAL;
@@ -185,7 +185,7 @@ static const struct iio_chan_spec mpl3115_channels[] = {
                         BIT(IIO_CHAN_INFO_SCALE),
                 .scan_index = 0,
                 .scan_type = {
-                        .sign = 's',
+                        .sign = 'u',
                         .realbits = 20,
                         .storagebits = 32,
                         .shift = 12,
diff --git a/drivers/misc/vexpress-syscfg.c b/drivers/misc/vexpress-syscfg.c
index 73068e50e56d..3250fc1df0aa 100644
--- a/drivers/misc/vexpress-syscfg.c
+++ b/drivers/misc/vexpress-syscfg.c
@@ -199,7 +199,7 @@ static struct regmap *vexpress_syscfg_regmap_init(struct device *dev,
         func = kzalloc(sizeof(*func) + sizeof(*func->template) * num,
                         GFP_KERNEL);
         if (!func)
-                return NULL;
+                return ERR_PTR(-ENOMEM);
 
         func->syscfg = syscfg;
         func->num_templates = num;
@@ -231,10 +231,14 @@ static struct regmap *vexpress_syscfg_regmap_init(struct device *dev,
         func->regmap = regmap_init(dev, NULL, func,
                         &vexpress_syscfg_regmap_config);
 
-        if (IS_ERR(func->regmap))
+        if (IS_ERR(func->regmap)) {
+                void *err = func->regmap;
+
                 kfree(func);
-        else
-                list_add(&func->list, &syscfg->funcs);
+                return err;
+        }
+
+        list_add(&func->list, &syscfg->funcs);
 
         return func->regmap;
 }
diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c
index 2421835d5daf..191617492181 100644
--- a/drivers/misc/vmw_balloon.c
+++ b/drivers/misc/vmw_balloon.c
@@ -17,7 +17,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
- * Maintained by: Dmitry Torokhov <dtor@vmware.com>
+ * Maintained by:       Xavier Deguillard <xdeguillard@vmware.com>
+ *                      Philip Moltmann <moltmann@vmware.com>
  */
 
 /*
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 8368d96ae7b4..b9864806e9b8 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -227,7 +227,8 @@ static int __of_node_add(struct device_node *np)
         np->kobj.kset = of_kset;
         if (!np->parent) {
                 /* Nodes without parents are new top level trees */
-                rc = kobject_add(&np->kobj, NULL, safe_name(&of_kset->kobj, "base"));
+                rc = kobject_add(&np->kobj, NULL, "%s",
+                                 safe_name(&of_kset->kobj, "base"));
         } else {
                 name = safe_name(&np->parent->kobj, kbasename(np->full_name));
                 if (!name || !name[0])
@@ -1960,9 +1961,9 @@ int of_attach_node(struct device_node *np)
 
         raw_spin_lock_irqsave(&devtree_lock, flags);
         np->sibling = np->parent->child;
-        np->allnext = of_allnodes;
+        np->allnext = np->parent->allnext;
+        np->parent->allnext = np;
         np->parent->child = np;
-        of_allnodes = np;
         of_node_clear_flag(np, OF_DETACHED);
         raw_spin_unlock_irqrestore(&devtree_lock, flags);
 
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 6c48d73a7fd7..500436f9be7f 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -166,10 +166,6 @@ static void of_dma_configure(struct platform_device *pdev)
         int ret;
         struct device *dev = &pdev->dev;
 
-#if defined(CONFIG_MICROBLAZE)
-        pdev->archdata.dma_mask = 0xffffffffUL;
-#endif
-
         /*
          * Set default dma-mask to 32 bit. Drivers are expected to setup
          * the correct supported dma_mask.
diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
index 85585219ce82..ad9e0c9b7daf 100644
--- a/drivers/regulator/as3722-regulator.c
+++ b/drivers/regulator/as3722-regulator.c
@@ -433,6 +433,7 @@ static struct regulator_ops as3722_ldo3_extcntrl_ops = {
 };
 
 static const struct regulator_linear_range as3722_ldo_ranges[] = {
+        REGULATOR_LINEAR_RANGE(0, 0x00, 0x00, 0),
         REGULATOR_LINEAR_RANGE(825000, 0x01, 0x24, 25000),
         REGULATOR_LINEAR_RANGE(1725000, 0x40, 0x7F, 25000),
 };
@@ -609,6 +610,7 @@ static bool as3722_sd0_is_low_voltage(struct as3722_regulators *as3722_regs)
 }
 
 static const struct regulator_linear_range as3722_sd2345_ranges[] = {
+        REGULATOR_LINEAR_RANGE(0, 0x00, 0x00, 0),
         REGULATOR_LINEAR_RANGE(612500, 0x01, 0x40, 12500),
         REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
         REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7F, 50000),
diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c
index 110a99ee1162..c8105182b8b8 100644
--- a/drivers/regulator/ltc3589.c
+++ b/drivers/regulator/ltc3589.c
@@ -255,7 +255,7 @@ static int ltc3589_parse_regulators_dt(struct ltc3589 *ltc3589)
         struct device_node *node;
         int i, ret;
 
-        node = of_find_node_by_name(dev->of_node, "regulators");
+        node = of_get_child_by_name(dev->of_node, "regulators");
         if (!node) {
                 dev_err(dev, "regulators node not found\n");
                 return -EINVAL;
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 864ed02ce4b7..b982f0ff4e01 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -37,12 +37,14 @@ struct regs_info {
 };
 
 static const struct regulator_linear_range smps_low_ranges[] = {
+        REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
         REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0),
         REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000),
         REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0),
 };
 
 static const struct regulator_linear_range smps_high_ranges[] = {
+        REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
         REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0),
         REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000),
         REGULATOR_LINEAR_RANGE(3300000, 0x7A, 0x7f, 0),
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index ce1743d0b679..5e343bab9458 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -44,7 +44,7 @@ config STE_MODEM_RPROC
 config DA8XX_REMOTEPROC
         tristate "DA8xx/OMAP-L13x remoteproc support"
         depends on ARCH_DAVINCI_DA8XX
-        select CMA
+        select CMA if MMU
         select REMOTEPROC
         select RPMSG
         help
diff --git a/drivers/rtc/rtc-puv3.c b/drivers/rtc/rtc-puv3.c
index 1ecfe3bd92ac..1cff2a21db67 100644
--- a/drivers/rtc/rtc-puv3.c
+++ b/drivers/rtc/rtc-puv3.c
@@ -71,7 +71,7 @@ static int puv3_rtc_setpie(struct device *dev, int enabled)
 {
         unsigned int tmp;
 
-        dev_debug(dev, "%s: pie=%d\n", __func__, enabled);
+        dev_dbg(dev, "%s: pie=%d\n", __func__, enabled);
 
         spin_lock_irq(&puv3_rtc_pie_lock);
         tmp = readl(RTC_RTSR) & ~RTC_RTSR_HZE;
@@ -140,7 +140,7 @@ static int puv3_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
         rtc_tm_to_time(tm, &rtcalarm_count);
         writel(rtcalarm_count, RTC_RTAR);
 
-        puv3_rtc_setaie(&dev->dev, alrm->enabled);
+        puv3_rtc_setaie(dev, alrm->enabled);
 
         if (alrm->enabled)
                 enable_irq_wake(puv3_rtc_alarmno);
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index ee0e85abe1fd..0f471750327e 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -593,7 +593,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
         dev_info->start = dcssblk_find_lowest_addr(dev_info);
         dev_info->end = dcssblk_find_highest_addr(dev_info);
 
-        dev_set_name(&dev_info->dev, dev_info->segment_name);
+        dev_set_name(&dev_info->dev, "%s", dev_info->segment_name);
         dev_info->dev.release = dcssblk_release_segment;
         dev_info->dev.groups = dcssblk_dev_attr_groups;
         INIT_LIST_HEAD(&dev_info->lh);
diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index 629fcc275e92..78b6ace7edcb 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -19,7 +19,6 @@ obj-$(CONFIG_SCLP_VT220_TTY) += sclp_vt220.o
 obj-$(CONFIG_SCLP_CPI) += sclp_cpi.o
 obj-$(CONFIG_SCLP_ASYNC) += sclp_async.o
 
-obj-$(CONFIG_ZVM_WATCHDOG) += vmwatchdog.o
 obj-$(CONFIG_VMLOGRDR) += vmlogrdr.o
 obj-$(CONFIG_VMCP) += vmcp.o
 
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index cd9c91909596..b9a9f721716d 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -838,8 +838,6 @@ sclp_vt220_con_init(void)
 {
         int rc;
 
-        if (!CONSOLE_IS_SCLP)
-                return 0;
         rc = __sclp_vt220_init(sclp_console_pages);
         if (rc)
                 return rc;
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index cf31d3321dab..a8848db7b09d 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -761,7 +761,7 @@ static int vmlogrdr_register_device(struct vmlogrdr_priv_t *priv)
 
         dev = kzalloc(sizeof(struct device), GFP_KERNEL);
         if (dev) {
-                dev_set_name(dev, priv->internal_name);
+                dev_set_name(dev, "%s", priv->internal_name);
                 dev->bus = &iucv_bus;
                 dev->parent = iucv_root;
                 dev->driver = &vmlogrdr_driver;
diff --git a/drivers/s390/char/vmwatchdog.c b/drivers/s390/char/vmwatchdog.c
deleted file mode 100644
index d5eac985976b..000000000000
--- a/drivers/s390/char/vmwatchdog.c
+++ /dev/null
@@ -1,338 +0,0 @@
-/*
- * Watchdog implementation based on z/VM Watchdog Timer API
- *
- * Copyright IBM Corp. 2004, 2009
- *
- * The user space watchdog daemon can use this driver as
- * /dev/vmwatchdog to have z/VM execute the specified CP
- * command when the timeout expires. The default command is
- * "IPL", which which cause an immediate reboot.
- */
-#define KMSG_COMPONENT "vmwatchdog"
-#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
-
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/miscdevice.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/slab.h>
-#include <linux/suspend.h>
-#include <linux/watchdog.h>
-
-#include <asm/ebcdic.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#define MAX_CMDLEN 240
-#define MIN_INTERVAL 15
-static char vmwdt_cmd[MAX_CMDLEN] = "IPL";
-static bool vmwdt_conceal;
-
-static bool vmwdt_nowayout = WATCHDOG_NOWAYOUT;
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Arnd Bergmann <arndb@de.ibm.com>");
-MODULE_DESCRIPTION("z/VM Watchdog Timer");
-module_param_string(cmd, vmwdt_cmd, MAX_CMDLEN, 0644);
-MODULE_PARM_DESC(cmd, "CP command that is run when the watchdog triggers");
-module_param_named(conceal, vmwdt_conceal, bool, 0644);
-MODULE_PARM_DESC(conceal, "Enable the CONCEAL CP option while the watchdog "
-                " is active");
-module_param_named(nowayout, vmwdt_nowayout, bool, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"
-                " (default=CONFIG_WATCHDOG_NOWAYOUT)");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-
-static unsigned int vmwdt_interval = 60;
-static unsigned long vmwdt_is_open;
-static int vmwdt_expect_close;
-
-static DEFINE_MUTEX(vmwdt_mutex);
-
-#define VMWDT_OPEN      0       /* devnode is open or suspend in progress */
-#define VMWDT_RUNNING   1       /* The watchdog is armed */
-
-enum vmwdt_func {
-        /* function codes */
-        wdt_init   = 0,
-        wdt_change = 1,
-        wdt_cancel = 2,
-        /* flags */
-        wdt_conceal = 0x80000000,
-};
-
-static int __diag288(enum vmwdt_func func, unsigned int timeout,
-                            char *cmd, size_t len)
-{
-        register unsigned long __func asm("2") = func;
-        register unsigned long __timeout asm("3") = timeout;
-        register unsigned long __cmdp asm("4") = virt_to_phys(cmd);
-        register unsigned long __cmdl asm("5") = len;
-        int err;
-
-        err = -EINVAL;
-        asm volatile(
-                "       diag    %1,%3,0x288\n"
-                "0:     la      %0,0\n"
-                "1:\n"
-                EX_TABLE(0b,1b)
-                : "+d" (err) : "d"(__func), "d"(__timeout),
-                  "d"(__cmdp), "d"(__cmdl) : "1", "cc");
-        return err;
-}
-
-static int vmwdt_keepalive(void)
-{
-        /* we allocate new memory every time to avoid having
-         * to track the state. static allocation is not an
-         * option since that might not be contiguous in real
-         * storage in case of a modular build */
-        static char *ebc_cmd;
-        size_t len;
-        int ret;
-        unsigned int func;
-
-        ebc_cmd = kmalloc(MAX_CMDLEN, GFP_KERNEL);
-        if (!ebc_cmd)
-                return -ENOMEM;
-
-        len = strlcpy(ebc_cmd, vmwdt_cmd, MAX_CMDLEN);
-        ASCEBC(ebc_cmd, MAX_CMDLEN);
-        EBC_TOUPPER(ebc_cmd, MAX_CMDLEN);
-
-        func = vmwdt_conceal ? (wdt_init | wdt_conceal) : wdt_init;
-        set_bit(VMWDT_RUNNING, &vmwdt_is_open);
-        ret = __diag288(func, vmwdt_interval, ebc_cmd, len);
-        WARN_ON(ret != 0);
-        kfree(ebc_cmd);
-        return ret;
-}
-
-static int vmwdt_disable(void)
-{
-        char cmd[] = {'\0'};
-        int ret = __diag288(wdt_cancel, 0, cmd, 0);
-        WARN_ON(ret != 0);
-        clear_bit(VMWDT_RUNNING, &vmwdt_is_open);
-        return ret;
-}
-
-static int __init vmwdt_probe(void)
-{
-        /* there is no real way to see if the watchdog is supported,
-         * so we try initializing it with a NOP command ("BEGIN")
-         * that won't cause any harm even if the following disable
-         * fails for some reason */
-        char ebc_begin[] = {
-                194, 197, 199, 201, 213
-        };
-        if (__diag288(wdt_init, 15, ebc_begin, sizeof(ebc_begin)) != 0)
-                return -EINVAL;
-        return vmwdt_disable();
-}
-
-static int vmwdt_open(struct inode *i, struct file *f)
-{
-        int ret;
-        if (test_and_set_bit(VMWDT_OPEN, &vmwdt_is_open))
-                return -EBUSY;
-        ret = vmwdt_keepalive();
-        if (ret)
-                clear_bit(VMWDT_OPEN, &vmwdt_is_open);
-        return ret ? ret : nonseekable_open(i, f);
-}
-
-static int vmwdt_close(struct inode *i, struct file *f)
-{
-        if (vmwdt_expect_close == 42)
-                vmwdt_disable();
-        vmwdt_expect_close = 0;
-        clear_bit(VMWDT_OPEN, &vmwdt_is_open);
-        return 0;
-}
-
-static struct watchdog_info vmwdt_info = {
-        .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
-        .firmware_version = 0,
-        .identity = "z/VM Watchdog Timer",
-};
-
-static int __vmwdt_ioctl(unsigned int cmd, unsigned long arg)
-{
-        switch (cmd) {
-        case WDIOC_GETSUPPORT:
-                if (copy_to_user((void __user *)arg, &vmwdt_info,
-                                        sizeof(vmwdt_info)))
-                        return -EFAULT;
-                return 0;
-        case WDIOC_GETSTATUS:
-        case WDIOC_GETBOOTSTATUS:
-                return put_user(0, (int __user *)arg);
-        case WDIOC_GETTEMP:
-                return -EINVAL;
-        case WDIOC_SETOPTIONS:
-                {
-                        int options, ret;
-                        if (get_user(options, (int __user *)arg))
-                                return -EFAULT;
-                        ret = -EINVAL;
-                        if (options & WDIOS_DISABLECARD) {
-                                ret = vmwdt_disable();
-                                if (ret)
-                                        return ret;
-                        }
-                        if (options & WDIOS_ENABLECARD) {
-                                ret = vmwdt_keepalive();
-                        }
-                        return ret;
-                }
-        case WDIOC_GETTIMEOUT:
-                return put_user(vmwdt_interval, (int __user *)arg);
-        case WDIOC_SETTIMEOUT:
-                {
-                        int interval;
-                        if (get_user(interval, (int __user *)arg))
-                                return -EFAULT;
-                        if (interval < MIN_INTERVAL)
-                                return -EINVAL;
-                        vmwdt_interval = interval;
-                }
-                return vmwdt_keepalive();
-        case WDIOC_KEEPALIVE:
-                return vmwdt_keepalive();
-        }
-        return -EINVAL;
-}
-
-static long vmwdt_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
-{
-        int rc;
-
-        mutex_lock(&vmwdt_mutex);
-        rc = __vmwdt_ioctl(cmd, arg);
-        mutex_unlock(&vmwdt_mutex);
-        return (long) rc;
-}
-
-static ssize_t vmwdt_write(struct file *f, const char __user *buf,
-                                size_t count, loff_t *ppos)
-{
-        if(count) {
-                if (!vmwdt_nowayout) {
-                        size_t i;
-
-                        /* note: just in case someone wrote the magic character
-                         * five months ago... */
-                        vmwdt_expect_close = 0;
-
-                        for (i = 0; i != count; i++) {
-                                char c;
-                                if (get_user(c, buf+i))
-                                        return -EFAULT;
-                                if (c == 'V')
-                                        vmwdt_expect_close = 42;
-                        }
-                }
-                /* someone wrote to us, we should restart timer */
-                vmwdt_keepalive();
-        }
-        return count;
-}
-
-static int vmwdt_resume(void)
-{
-        clear_bit(VMWDT_OPEN, &vmwdt_is_open);
-        return NOTIFY_DONE;
-}
-
-/*
- * It makes no sense to go into suspend while the watchdog is running.
- * Depending on the memory size, the watchdog might trigger, while we
- * are still saving the memory.
- * We reuse the open flag to ensure that suspend and watchdog open are
- * exclusive operations
- */
-static int vmwdt_suspend(void)
-{
-        if (test_and_set_bit(VMWDT_OPEN, &vmwdt_is_open)) {
-                pr_err("The system cannot be suspended while the watchdog"
-                        " is in use\n");
-                return notifier_from_errno(-EBUSY);
-        }
-        if (test_bit(VMWDT_RUNNING, &vmwdt_is_open)) {
-                clear_bit(VMWDT_OPEN, &vmwdt_is_open);
-                pr_err("The system cannot be suspended while the watchdog"
-                        " is running\n");
-                return notifier_from_errno(-EBUSY);
-        }
-        return NOTIFY_DONE;
-}
-
-/*
- * This function is called for suspend and resume.
- */
-static int vmwdt_power_event(struct notifier_block *this, unsigned long event,
-                             void *ptr)
-{
-        switch (event) {
-        case PM_POST_HIBERNATION:
-        case PM_POST_SUSPEND:
-                return vmwdt_resume();
-        case PM_HIBERNATION_PREPARE:
-        case PM_SUSPEND_PREPARE:
-                return vmwdt_suspend();
-        default:
-                return NOTIFY_DONE;
-        }
-}
-
-static struct notifier_block vmwdt_power_notifier = {
-        .notifier_call = vmwdt_power_event,
-};
-
-static const struct file_operations vmwdt_fops = {
-        .open    = &vmwdt_open,
-        .release = &vmwdt_close,
-        .unlocked_ioctl = &vmwdt_ioctl,
-        .write   = &vmwdt_write,
-        .owner   = THIS_MODULE,
-        .llseek  = noop_llseek,
-};
-
-static struct miscdevice vmwdt_dev = {
-        .minor      = WATCHDOG_MINOR,
-        .name       = "watchdog",
-        .fops       = &vmwdt_fops,
-};
-
-static int __init vmwdt_init(void)
-{
-        int ret;
-
-        ret = vmwdt_probe();
-        if (ret)
-                return ret;
-        ret = register_pm_notifier(&vmwdt_power_notifier);
-        if (ret)
-                return ret;
-        /*
-         * misc_register() has to be the last action in module_init(), because
-         * file operations will be available right after this.
-         */
-        ret = misc_register(&vmwdt_dev);
-        if (ret) {
-                unregister_pm_notifier(&vmwdt_power_notifier);
-                return ret;
-        }
-        return 0;
-}
-module_init(vmwdt_init);
-
-static void __exit vmwdt_exit(void)
-{
-        unregister_pm_notifier(&vmwdt_power_notifier);
-        misc_deregister(&vmwdt_dev);
-}
-module_exit(vmwdt_exit);
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index 445564c790f6..00bfbee0af9e 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -196,11 +196,11 @@ EXPORT_SYMBOL(airq_iv_release);
  */
 unsigned long airq_iv_alloc(struct airq_iv *iv, unsigned long num)
 {
-        unsigned long bit, i;
+        unsigned long bit, i, flags;
 
         if (!iv->avail || num == 0)
                 return -1UL;
-        spin_lock(&iv->lock);
+        spin_lock_irqsave(&iv->lock, flags);
         bit = find_first_bit_inv(iv->avail, iv->bits);
         while (bit + num <= iv->bits) {
                 for (i = 1; i < num; i++)
@@ -218,9 +218,8 @@ unsigned long airq_iv_alloc(struct airq_iv *iv, unsigned long num)
         }
         if (bit + num > iv->bits)
                 bit = -1UL;
-        spin_unlock(&iv->lock);
+        spin_unlock_irqrestore(&iv->lock, flags);
         return bit;
-
 }
 EXPORT_SYMBOL(airq_iv_alloc);
 
@@ -232,11 +231,11 @@ EXPORT_SYMBOL(airq_iv_alloc);
  */
 void airq_iv_free(struct airq_iv *iv, unsigned long bit, unsigned long num)
 {
-        unsigned long i;
+        unsigned long i, flags;
 
         if (!iv->avail || num == 0)
                 return;
-        spin_lock(&iv->lock);
+        spin_lock_irqsave(&iv->lock, flags);
         for (i = 0; i < num; i++) {
                 /* Clear (possibly left over) interrupt bit */
                 clear_bit_inv(bit + i, iv->vector);
@@ -248,7 +247,7 @@ void airq_iv_free(struct airq_iv *iv, unsigned long bit, unsigned long num)
                 while (iv->end > 0 && !test_bit_inv(iv->end - 1, iv->avail))
                         iv->end--;
         }
-        spin_unlock(&iv->lock);
+        spin_unlock_irqrestore(&iv->lock, flags);
 }
 EXPORT_SYMBOL(airq_iv_free);
 
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index dfd7bc681c25..e443b0d0b236 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -184,7 +184,7 @@ static ssize_t ccwgroup_ungroup_store(struct device *dev,
                                       const char *buf, size_t count)
 {
         struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
-        int rc;
+        int rc = 0;
 
         /* Prevent concurrent online/offline processing and ungrouping. */
         if (atomic_cmpxchg(&gdev->onoff, 0, 1) != 0)
@@ -196,11 +196,12 @@ static ssize_t ccwgroup_ungroup_store(struct device *dev,
 
         if (device_remove_file_self(dev, attr))
                 ccwgroup_ungroup(gdev);
+        else
+                rc = -ENODEV;
 out:
         if (rc) {
-                if (rc != -EAGAIN)
-                        /* Release onoff "lock" when ungrouping failed. */
-                        atomic_set(&gdev->onoff, 0);
+                /* Release onoff "lock" when ungrouping failed. */
+                atomic_set(&gdev->onoff, 0);
                 return rc;
         }
         return count;
@@ -227,6 +228,7 @@ static void ccwgroup_ungroup_workfn(struct work_struct *work)
                 container_of(work, struct ccwgroup_device, ungroup_work);
 
         ccwgroup_ungroup(gdev);
+        put_device(&gdev->dev);
 }
 
 static void ccwgroup_release(struct device *dev)
@@ -412,8 +414,10 @@ static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action,
 {
         struct ccwgroup_device *gdev = to_ccwgroupdev(data);
 
-        if (action == BUS_NOTIFY_UNBIND_DRIVER)
+        if (action == BUS_NOTIFY_UNBIND_DRIVER) {
+                get_device(&gdev->dev);
                 schedule_work(&gdev->ungroup_work);
+        }
 
         return NOTIFY_OK;
 }
@@ -582,11 +586,7 @@ void ccwgroup_driver_unregister(struct ccwgroup_driver *cdriver)
                                          __ccwgroup_match_all))) {
                 struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
 
-                mutex_lock(&gdev->reg_mutex);
-                __ccwgroup_remove_symlinks(gdev);
-                device_unregister(dev);
-                __ccwgroup_remove_cdev_refs(gdev);
-                mutex_unlock(&gdev->reg_mutex);
+                ccwgroup_ungroup(gdev);
                 put_device(dev);
         }
         driver_unregister(&cdriver->driver);
@@ -633,13 +633,7 @@ void ccwgroup_remove_ccwdev(struct ccw_device *cdev)
         get_device(&gdev->dev);
         spin_unlock_irq(cdev->ccwlock);
         /* Unregister group device. */
-        mutex_lock(&gdev->reg_mutex);
-        if (device_is_registered(&gdev->dev)) {
-                __ccwgroup_remove_symlinks(gdev);
-                device_unregister(&gdev->dev);
-                __ccwgroup_remove_cdev_refs(gdev);
-        }
-        mutex_unlock(&gdev->reg_mutex);
+        ccwgroup_ungroup(gdev);
         /* Release ccwgroup device reference for local processing. */
         put_device(&gdev->dev);
 }
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 77f9c92df4b9..2905d8b0ec95 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -602,6 +602,7 @@ void __init init_cio_interrupts(void)
 
 #ifdef CONFIG_CCW_CONSOLE
 static struct subchannel *console_sch;
+static struct lock_class_key console_sch_key;
 
 /*
  * Use cio_tsch to update the subchannel status and call the interrupt handler
@@ -686,6 +687,7 @@ struct subchannel *cio_probe_console(void)
         if (IS_ERR(sch))
                 return sch;
 
+        lockdep_set_class(sch->lock, &console_sch_key);
         isc_register(CONSOLE_ISC);
         sch->config.isc = CONSOLE_ISC;
         sch->config.intparm = (u32)(addr_t)sch;
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index d8d9b5b5cc56..dfef5e63cb7b 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -678,18 +678,11 @@ static const struct attribute_group *ccwdev_attr_groups[] = {
         NULL,
 };
 
-/* this is a simple abstraction for device_register that sets the
- * correct bus type and adds the bus specific files */
-static int ccw_device_register(struct ccw_device *cdev)
+static int ccw_device_add(struct ccw_device *cdev)
 {
         struct device *dev = &cdev->dev;
-        int ret;
 
         dev->bus = &ccw_bus_type;
-        ret = dev_set_name(&cdev->dev, "0.%x.%04x", cdev->private->dev_id.ssid,
-                           cdev->private->dev_id.devno);
-        if (ret)
-                return ret;
         return device_add(dev);
 }
 
@@ -764,22 +757,46 @@ static void ccw_device_todo(struct work_struct *work);
 static int io_subchannel_initialize_dev(struct subchannel *sch,
                                         struct ccw_device *cdev)
 {
-        cdev->private->cdev = cdev;
-        cdev->private->int_class = IRQIO_CIO;
-        atomic_set(&cdev->private->onoff, 0);
+        struct ccw_device_private *priv = cdev->private;
+        int ret;
+
+        priv->cdev = cdev;
+        priv->int_class = IRQIO_CIO;
+        priv->state = DEV_STATE_NOT_OPER;
+        priv->dev_id.devno = sch->schib.pmcw.dev;
+        priv->dev_id.ssid = sch->schid.ssid;
+        priv->schid = sch->schid;
+
+        INIT_WORK(&priv->todo_work, ccw_device_todo);
+        INIT_LIST_HEAD(&priv->cmb_list);
+        init_waitqueue_head(&priv->wait_q);
+        init_timer(&priv->timer);
+
+        atomic_set(&priv->onoff, 0);
+        cdev->ccwlock = sch->lock;
         cdev->dev.parent = &sch->dev;
         cdev->dev.release = ccw_device_release;
-        INIT_WORK(&cdev->private->todo_work, ccw_device_todo);
         cdev->dev.groups = ccwdev_attr_groups;
         /* Do first half of device_register. */
         device_initialize(&cdev->dev);
+        ret = dev_set_name(&cdev->dev, "0.%x.%04x", cdev->private->dev_id.ssid,
+                           cdev->private->dev_id.devno);
+        if (ret)
+                goto out_put;
         if (!get_device(&sch->dev)) {
-                /* Release reference from device_initialize(). */
-                put_device(&cdev->dev);
-                return -ENODEV;
+                ret = -ENODEV;
+                goto out_put;
         }
-        cdev->private->flags.initialized = 1;
+        priv->flags.initialized = 1;
+        spin_lock_irq(sch->lock);
+        sch_set_cdev(sch, cdev);
+        spin_unlock_irq(sch->lock);
         return 0;
+
+out_put:
+        /* Release reference from device_initialize(). */
+        put_device(&cdev->dev);
+        return ret;
 }
 
 static struct ccw_device * io_subchannel_create_ccwdev(struct subchannel *sch)
@@ -858,7 +875,7 @@ static void io_subchannel_register(struct ccw_device *cdev)
         dev_set_uevent_suppress(&sch->dev, 0);
         kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
         /* make it known to the system */
-        ret = ccw_device_register(cdev);
+        ret = ccw_device_add(cdev);
         if (ret) {
                 CIO_MSG_EVENT(0, "Could not register ccw dev 0.%x.%04x: %d\n",
                               cdev->private->dev_id.ssid,
@@ -923,26 +940,11 @@ io_subchannel_recog_done(struct ccw_device *cdev)
 
 static void io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch)
 {
-        struct ccw_device_private *priv;
-
-        cdev->ccwlock = sch->lock;
-
-        /* Init private data. */
-        priv = cdev->private;
-        priv->dev_id.devno = sch->schib.pmcw.dev;
-        priv->dev_id.ssid = sch->schid.ssid;
-        priv->schid = sch->schid;
-        priv->state = DEV_STATE_NOT_OPER;
-        INIT_LIST_HEAD(&priv->cmb_list);
-        init_waitqueue_head(&priv->wait_q);
-        init_timer(&priv->timer);
-
         /* Increase counter of devices currently in recognition. */
         atomic_inc(&ccw_device_init_count);
 
         /* Start async. device sensing. */
         spin_lock_irq(sch->lock);
-        sch_set_cdev(sch, cdev);
         ccw_device_recognition(cdev);
         spin_unlock_irq(sch->lock);
 }
@@ -1083,7 +1085,7 @@ static int io_subchannel_probe(struct subchannel *sch)
                 dev_set_uevent_suppress(&sch->dev, 0);
                 kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
                 cdev = sch_get_cdev(sch);
-                rc = ccw_device_register(cdev);
+                rc = ccw_device_add(cdev);
                 if (rc) {
                         /* Release online reference. */
                         put_device(&cdev->dev);
@@ -1597,7 +1599,6 @@ int __init ccw_device_enable_console(struct ccw_device *cdev)
         if (rc)
                 return rc;
         sch->driver = &io_subchannel_driver;
-        sch_set_cdev(sch, cdev);
         io_subchannel_recog(cdev, sch);
         /* Now wait for the async. recognition to come to an end. */
         spin_lock_irq(cdev->ccwlock);
@@ -1639,6 +1640,7 @@ struct ccw_device * __init ccw_device_create_console(struct ccw_driver *drv)
                 put_device(&sch->dev);
                 return ERR_PTR(-ENOMEM);
         }
+        set_io_private(sch, io_priv);
         cdev = io_subchannel_create_ccwdev(sch);
         if (IS_ERR(cdev)) {
                 put_device(&sch->dev);
@@ -1646,7 +1648,6 @@ struct ccw_device * __init ccw_device_create_console(struct ccw_driver *drv)
                 return cdev;
         }
         cdev->drv = drv;
-        set_io_private(sch, io_priv);
         ccw_device_set_int_class(cdev);
         return cdev;
 }
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index 4221b02085ad..f1f3baa8e6e4 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -7,6 +7,7 @@
 #include <linux/debugfs.h>
 #include <linux/uaccess.h>
 #include <linux/export.h>
+#include <linux/slab.h>
 #include <asm/debug.h>
 #include "qdio_debug.h"
 #include "qdio.h"
@@ -16,11 +17,51 @@ debug_info_t *qdio_dbf_error;
 
 static struct dentry *debugfs_root;
 #define QDIO_DEBUGFS_NAME_LEN   10
+#define QDIO_DBF_NAME_LEN       20
 
-void qdio_allocate_dbf(struct qdio_initialize *init_data,
+struct qdio_dbf_entry {
+        char dbf_name[QDIO_DBF_NAME_LEN];
+        debug_info_t *dbf_info;
+        struct list_head dbf_list;
+};
+
+static LIST_HEAD(qdio_dbf_list);
+static DEFINE_MUTEX(qdio_dbf_list_mutex);
+
+static debug_info_t *qdio_get_dbf_entry(char *name)
+{
+        struct qdio_dbf_entry *entry;
+        debug_info_t *rc = NULL;
+
+        mutex_lock(&qdio_dbf_list_mutex);
+        list_for_each_entry(entry, &qdio_dbf_list, dbf_list) {
+                if (strcmp(entry->dbf_name, name) == 0) {
+                        rc = entry->dbf_info;
+                        break;
+                }
+        }
+        mutex_unlock(&qdio_dbf_list_mutex);
+        return rc;
+}
+
+static void qdio_clear_dbf_list(void)
+{
+        struct qdio_dbf_entry *entry, *tmp;
+
+        mutex_lock(&qdio_dbf_list_mutex);
+        list_for_each_entry_safe(entry, tmp, &qdio_dbf_list, dbf_list) {
+                list_del(&entry->dbf_list);
+                debug_unregister(entry->dbf_info);
+                kfree(entry);
+        }
+        mutex_unlock(&qdio_dbf_list_mutex);
+}
+
+int qdio_allocate_dbf(struct qdio_initialize *init_data,
                        struct qdio_irq *irq_ptr)
 {
-        char text[20];
+        char text[QDIO_DBF_NAME_LEN];
+        struct qdio_dbf_entry *new_entry;
 
         DBF_EVENT("qfmt:%1d", init_data->q_format);
         DBF_HEX(init_data->adapter_name, 8);
@@ -38,11 +79,34 @@ void qdio_allocate_dbf(struct qdio_initialize *init_data,
         DBF_EVENT("irq:%8lx", (unsigned long)irq_ptr);
 
         /* allocate trace view for the interface */
-        snprintf(text, 20, "qdio_%s", dev_name(&init_data->cdev->dev));
-        irq_ptr->debug_area = debug_register(text, 2, 1, 16);
-        debug_register_view(irq_ptr->debug_area, &debug_hex_ascii_view);
-        debug_set_level(irq_ptr->debug_area, DBF_WARN);
-        DBF_DEV_EVENT(DBF_ERR, irq_ptr, "dbf created");
+        snprintf(text, QDIO_DBF_NAME_LEN, "qdio_%s",
+                                        dev_name(&init_data->cdev->dev));
+        irq_ptr->debug_area = qdio_get_dbf_entry(text);
+        if (irq_ptr->debug_area)
+                DBF_DEV_EVENT(DBF_ERR, irq_ptr, "dbf reused");
+        else {
+                irq_ptr->debug_area = debug_register(text, 2, 1, 16);
+                if (!irq_ptr->debug_area)
+                        return -ENOMEM;
+                if (debug_register_view(irq_ptr->debug_area,
+                                                &debug_hex_ascii_view)) {
+                        debug_unregister(irq_ptr->debug_area);
+                        return -ENOMEM;
+                }
+                debug_set_level(irq_ptr->debug_area, DBF_WARN);
+                DBF_DEV_EVENT(DBF_ERR, irq_ptr, "dbf created");
+                new_entry = kzalloc(sizeof(struct qdio_dbf_entry), GFP_KERNEL);
+                if (!new_entry) {
+                        debug_unregister(irq_ptr->debug_area);
+                        return -ENOMEM;
+                }
+                strlcpy(new_entry->dbf_name, text, QDIO_DBF_NAME_LEN);
+                new_entry->dbf_info = irq_ptr->debug_area;
+                mutex_lock(&qdio_dbf_list_mutex);
+                list_add(&new_entry->dbf_list, &qdio_dbf_list);
+                mutex_unlock(&qdio_dbf_list_mutex);
+        }
+        return 0;
 }
 
 static int qstat_show(struct seq_file *m, void *v)
@@ -300,6 +364,7 @@ int __init qdio_debug_init(void)
 
 void qdio_debug_exit(void)
 {
+        qdio_clear_dbf_list();
         debugfs_remove(debugfs_root);
         if (qdio_dbf_setup)
                 debug_unregister(qdio_dbf_setup);
diff --git a/drivers/s390/cio/qdio_debug.h b/drivers/s390/cio/qdio_debug.h
index dfac9bfefea3..f33ce8577619 100644
--- a/drivers/s390/cio/qdio_debug.h
+++ b/drivers/s390/cio/qdio_debug.h
@@ -75,7 +75,7 @@ static inline void DBF_DEV_HEX(struct qdio_irq *dev, void *addr,
         }
 }
 
-void qdio_allocate_dbf(struct qdio_initialize *init_data,
+int qdio_allocate_dbf(struct qdio_initialize *init_data,
                        struct qdio_irq *irq_ptr);
 void qdio_setup_debug_entries(struct qdio_irq *irq_ptr,
                               struct ccw_device *cdev);
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 77466c4faabb..848e3b64ea6e 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -409,17 +409,16 @@ static inline void qdio_stop_polling(struct qdio_q *q)
                 set_buf_state(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT);
 }
 
-static inline void account_sbals(struct qdio_q *q, int count)
+static inline void account_sbals(struct qdio_q *q, unsigned int count)
 {
-        int pos = 0;
+        int pos;
 
         q->q_stats.nr_sbal_total += count;
         if (count == QDIO_MAX_BUFFERS_MASK) {
                 q->q_stats.nr_sbals[7]++;
                 return;
         }
-        while (count >>= 1)
-                pos++;
+        pos = ilog2(count);
         q->q_stats.nr_sbals[pos]++;
 }
 
@@ -1234,12 +1233,10 @@ int qdio_free(struct ccw_device *cdev)
                 return -ENODEV;
 
         DBF_EVENT("qfree:%4x", cdev->private->schid.sch_no);
+        DBF_DEV_EVENT(DBF_ERR, irq_ptr, "dbf abandoned");
         mutex_lock(&irq_ptr->setup_mutex);
 
-        if (irq_ptr->debug_area != NULL) {
-                debug_unregister(irq_ptr->debug_area);
-                irq_ptr->debug_area = NULL;
-        }
+        irq_ptr->debug_area = NULL;
         cdev->private->qdio_data = NULL;
         mutex_unlock(&irq_ptr->setup_mutex);
 
@@ -1276,7 +1273,8 @@ int qdio_allocate(struct qdio_initialize *init_data)
                 goto out_err;
 
         mutex_init(&irq_ptr->setup_mutex);
-        qdio_allocate_dbf(init_data, irq_ptr);
+        if (qdio_allocate_dbf(init_data, irq_ptr))
+                goto out_rel;
 
         /*
          * Allocate a page for the chsc calls in qdio_establish.
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 8eec1653c9cc..69ef4f8cfac8 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -77,12 +77,12 @@ MODULE_ALIAS("z90crypt");
  * Module parameter
  */
 int ap_domain_index = -1;       /* Adjunct Processor Domain Index */
-module_param_named(domain, ap_domain_index, int, 0000);
+module_param_named(domain, ap_domain_index, int, S_IRUSR|S_IRGRP);
 MODULE_PARM_DESC(domain, "domain index for ap devices");
 EXPORT_SYMBOL(ap_domain_index);
 
 static int ap_thread_flag = 0;
-module_param_named(poll_thread, ap_thread_flag, int, 0000);
+module_param_named(poll_thread, ap_thread_flag, int, S_IRUSR|S_IRGRP);
 MODULE_PARM_DESC(poll_thread, "Turn on/off poll thread, default is 0 (off).");
 
 static struct device *ap_root_device = NULL;
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 5222ebe15705..0e18c5dcd91f 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -356,7 +356,7 @@ struct zcrypt_ops *zcrypt_msgtype_request(unsigned char *name, int variant)
 
         zops = __ops_lookup(name, variant);
         if (!zops) {
-                request_module(name);
+                request_module("%s", name);
                 zops = __ops_lookup(name, variant);
         }
         if ((!zops) || (!try_module_get(zops->owner)))
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c
index 1e4479f3331a..9270d15ff1a4 100644
--- a/drivers/scsi/mvsas/mv_94xx.c
+++ b/drivers/scsi/mvsas/mv_94xx.c
@@ -564,7 +564,7 @@ static void mvs_94xx_interrupt_enable(struct mvs_info *mvi)
         u32 tmp;
 
         tmp = mr32(MVS_GBL_CTL);
-        tmp |= (IRQ_SAS_A | IRQ_SAS_B);
+        tmp |= (MVS_IRQ_SAS_A | MVS_IRQ_SAS_B);
         mw32(MVS_GBL_INT_STAT, tmp);
         writel(tmp, regs + 0x0C);
         writel(tmp, regs + 0x10);
@@ -580,7 +580,7 @@ static void mvs_94xx_interrupt_disable(struct mvs_info *mvi)
 
         tmp = mr32(MVS_GBL_CTL);
 
-        tmp &= ~(IRQ_SAS_A | IRQ_SAS_B);
+        tmp &= ~(MVS_IRQ_SAS_A | MVS_IRQ_SAS_B);
         mw32(MVS_GBL_INT_STAT, tmp);
         writel(tmp, regs + 0x0C);
         writel(tmp, regs + 0x10);
@@ -596,7 +596,7 @@ static u32 mvs_94xx_isr_status(struct mvs_info *mvi, int irq)
         if (!(mvi->flags & MVF_FLAG_SOC)) {
                 stat = mr32(MVS_GBL_INT_STAT);
 
-                if (!(stat & (IRQ_SAS_A | IRQ_SAS_B)))
+                if (!(stat & (MVS_IRQ_SAS_A | MVS_IRQ_SAS_B)))
                         return 0;
         }
         return stat;
@@ -606,8 +606,8 @@ static irqreturn_t mvs_94xx_isr(struct mvs_info *mvi, int irq, u32 stat)
 {
         void __iomem *regs = mvi->regs;
 
-        if (((stat & IRQ_SAS_A) && mvi->id == 0) ||
-                        ((stat & IRQ_SAS_B) && mvi->id == 1)) {
+        if (((stat & MVS_IRQ_SAS_A) && mvi->id == 0) ||
+                        ((stat & MVS_IRQ_SAS_B) && mvi->id == 1)) {
                 mw32_f(MVS_INT_STAT, CINT_DONE);
 
                 spin_lock(&mvi->lock);
diff --git a/drivers/scsi/mvsas/mv_94xx.h b/drivers/scsi/mvsas/mv_94xx.h
index 487aa6f97412..14e197497b46 100644
--- a/drivers/scsi/mvsas/mv_94xx.h
+++ b/drivers/scsi/mvsas/mv_94xx.h
@@ -150,35 +150,35 @@ enum chip_register_bits {
 
 enum pci_interrupt_cause {
         /*  MAIN_IRQ_CAUSE (R10200) Bits*/
-        IRQ_COM_IN_I2O_IOP0            = (1 << 0),
-        IRQ_COM_IN_I2O_IOP1            = (1 << 1),
-        IRQ_COM_IN_I2O_IOP2            = (1 << 2),
-        IRQ_COM_IN_I2O_IOP3            = (1 << 3),
-        IRQ_COM_OUT_I2O_HOS0           = (1 << 4),
-        IRQ_COM_OUT_I2O_HOS1           = (1 << 5),
-        IRQ_COM_OUT_I2O_HOS2           = (1 << 6),
-        IRQ_COM_OUT_I2O_HOS3           = (1 << 7),
-        IRQ_PCIF_TO_CPU_DRBL0          = (1 << 8),
-        IRQ_PCIF_TO_CPU_DRBL1          = (1 << 9),
-        IRQ_PCIF_TO_CPU_DRBL2          = (1 << 10),
-        IRQ_PCIF_TO_CPU_DRBL3          = (1 << 11),
-        IRQ_PCIF_DRBL0                 = (1 << 12),
-        IRQ_PCIF_DRBL1                 = (1 << 13),
-        IRQ_PCIF_DRBL2                 = (1 << 14),
-        IRQ_PCIF_DRBL3                 = (1 << 15),
-        IRQ_XOR_A                      = (1 << 16),
-        IRQ_XOR_B                      = (1 << 17),
-        IRQ_SAS_A                      = (1 << 18),
-        IRQ_SAS_B                      = (1 << 19),
-        IRQ_CPU_CNTRL                  = (1 << 20),
-        IRQ_GPIO                       = (1 << 21),
-        IRQ_UART                       = (1 << 22),
-        IRQ_SPI                        = (1 << 23),
-        IRQ_I2C                        = (1 << 24),
-        IRQ_SGPIO                      = (1 << 25),
-        IRQ_COM_ERR                    = (1 << 29),
-        IRQ_I2O_ERR                    = (1 << 30),
-        IRQ_PCIE_ERR                   = (1 << 31),
+        MVS_IRQ_COM_IN_I2O_IOP0        = (1 << 0),
+        MVS_IRQ_COM_IN_I2O_IOP1        = (1 << 1),
+        MVS_IRQ_COM_IN_I2O_IOP2        = (1 << 2),
+        MVS_IRQ_COM_IN_I2O_IOP3        = (1 << 3),
+        MVS_IRQ_COM_OUT_I2O_HOS0       = (1 << 4),
+        MVS_IRQ_COM_OUT_I2O_HOS1       = (1 << 5),
+        MVS_IRQ_COM_OUT_I2O_HOS2       = (1 << 6),
+        MVS_IRQ_COM_OUT_I2O_HOS3       = (1 << 7),
+        MVS_IRQ_PCIF_TO_CPU_DRBL0      = (1 << 8),
+        MVS_IRQ_PCIF_TO_CPU_DRBL1      = (1 << 9),
+        MVS_IRQ_PCIF_TO_CPU_DRBL2      = (1 << 10),
+        MVS_IRQ_PCIF_TO_CPU_DRBL3      = (1 << 11),
+        MVS_IRQ_PCIF_DRBL0             = (1 << 12),
+        MVS_IRQ_PCIF_DRBL1             = (1 << 13),
+        MVS_IRQ_PCIF_DRBL2             = (1 << 14),
+        MVS_IRQ_PCIF_DRBL3             = (1 << 15),
+        MVS_IRQ_XOR_A                  = (1 << 16),
+        MVS_IRQ_XOR_B                  = (1 << 17),
+        MVS_IRQ_SAS_A                  = (1 << 18),
+        MVS_IRQ_SAS_B                  = (1 << 19),
+        MVS_IRQ_CPU_CNTRL              = (1 << 20),
+        MVS_IRQ_GPIO                   = (1 << 21),
+        MVS_IRQ_UART                   = (1 << 22),
+        MVS_IRQ_SPI                    = (1 << 23),
+        MVS_IRQ_I2C                    = (1 << 24),
+        MVS_IRQ_SGPIO                  = (1 << 25),
+        MVS_IRQ_COM_ERR                = (1 << 29),
+        MVS_IRQ_I2O_ERR                = (1 << 30),
+        MVS_IRQ_PCIE_ERR               = (1 << 31),
 };
 
 union reg_phy_cfg {
diff --git a/drivers/spi/spi-pxa2xx-dma.c b/drivers/spi/spi-pxa2xx-dma.c
index f6759dc0153b..c41ff148a2b4 100644
--- a/drivers/spi/spi-pxa2xx-dma.c
+++ b/drivers/spi/spi-pxa2xx-dma.c
@@ -368,7 +368,7 @@ int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip,
          * otherwise we use the default. Also we use the default FIFO
          * thresholds for now.
          */
-        *burst_code = chip_info ? chip_info->dma_burst_size : 16;
+        *burst_code = chip_info ? chip_info->dma_burst_size : 1;
         *threshold = SSCR1_RxTresh(RX_THRESH_DFLT)
                    | SSCR1_TxTresh(TX_THRESH_DFLT);
 
diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c
index 2c617834dc46..c341ac11c5a3 100644
--- a/drivers/staging/android/timed_output.c
+++ b/drivers/staging/android/timed_output.c
@@ -97,7 +97,6 @@ void timed_output_dev_unregister(struct timed_output_dev *tdev)
 {
         tdev->enable(tdev, 0);
         device_destroy(timed_output_class, MKDEV(0, tdev->index));
-        dev_set_drvdata(tdev->dev, NULL);
 }
 EXPORT_SYMBOL_GPL(timed_output_dev_unregister);
 
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 3a07f0b9afd5..8d992a87d3c4 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -653,6 +653,7 @@ config COMEDI_ADDI_APCI_1516
 
 config COMEDI_ADDI_APCI_1564
         tristate "ADDI-DATA APCI_1564 support"
+        select COMEDI_ADDI_WATCHDOG
         ---help---
           Enable support for ADDI-DATA APCI_1564 cards
 
diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
index b36feb080cba..fa38be0982f9 100644
--- a/drivers/staging/iio/Kconfig
+++ b/drivers/staging/iio/Kconfig
@@ -36,10 +36,11 @@ config IIO_SIMPLE_DUMMY_EVENTS
          Add some dummy events to the simple dummy driver.
 
 config IIO_SIMPLE_DUMMY_BUFFER
-       boolean "Buffered capture support"
-       select IIO_KFIFO_BUF
-       help
-         Add buffered data capture to the simple dummy driver.
+        boolean "Buffered capture support"
+        select IIO_BUFFER
+        select IIO_KFIFO_BUF
+        help
+          Add buffered data capture to the simple dummy driver.
 
 endif # IIO_SIMPLE_DUMMY
 
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index d8619993c6ff..468327f4a753 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -846,6 +846,14 @@ static int mxs_lradc_read_single(struct iio_dev *iio_dev, int chan, int *val)
                         LRADC_CTRL1);
         mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
 
+        /* Enable / disable the divider per requirement */
+        if (test_bit(chan, &lradc->is_divided))
+                mxs_lradc_reg_set(lradc, 1 << LRADC_CTRL2_DIVIDE_BY_TWO_OFFSET,
+                        LRADC_CTRL2);
+        else
+                mxs_lradc_reg_clear(lradc,
+                        1 << LRADC_CTRL2_DIVIDE_BY_TWO_OFFSET, LRADC_CTRL2);
+
         /* Clean the slot's previous content, then set new one. */
         mxs_lradc_reg_clear(lradc, LRADC_CTRL4_LRADCSELECT_MASK(0),
                         LRADC_CTRL4);
@@ -961,15 +969,11 @@ static int mxs_lradc_write_raw(struct iio_dev *iio_dev,
                 if (val == scale_avail[MXS_LRADC_DIV_DISABLED].integer &&
                     val2 == scale_avail[MXS_LRADC_DIV_DISABLED].nano) {
                         /* divider by two disabled */
-                        writel(1 << LRADC_CTRL2_DIVIDE_BY_TWO_OFFSET,
-                               lradc->base + LRADC_CTRL2 + STMP_OFFSET_REG_CLR);
                         clear_bit(chan->channel, &lradc->is_divided);
                         ret = 0;
                 } else if (val == scale_avail[MXS_LRADC_DIV_ENABLED].integer &&
                            val2 == scale_avail[MXS_LRADC_DIV_ENABLED].nano) {
                         /* divider by two enabled */
-                        writel(1 << LRADC_CTRL2_DIVIDE_BY_TWO_OFFSET,
-                               lradc->base + LRADC_CTRL2 + STMP_OFFSET_REG_SET);
                         set_bit(chan->channel, &lradc->is_divided);
                         ret = 0;
                 }
diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
index 9e0f2a9c73ae..ab338e3ddd05 100644
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ b/drivers/staging/iio/light/tsl2x7x_core.c
@@ -667,9 +667,13 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
         chip->tsl2x7x_config[TSL2X7X_PRX_COUNT] =
                         chip->tsl2x7x_settings.prox_pulse_count;
         chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHLO] =
-        chip->tsl2x7x_settings.prox_thres_low;
+                        (chip->tsl2x7x_settings.prox_thres_low) & 0xFF;
+        chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHHI] =
+                        (chip->tsl2x7x_settings.prox_thres_low >> 8) & 0xFF;
         chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHLO] =
-                        chip->tsl2x7x_settings.prox_thres_high;
+                        (chip->tsl2x7x_settings.prox_thres_high) & 0xFF;
+        chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHHI] =
+                        (chip->tsl2x7x_settings.prox_thres_high >> 8) & 0xFF;
 
         /* and make sure we're not already on */
         if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
diff --git a/drivers/staging/imx-drm/parallel-display.c b/drivers/staging/imx-drm/parallel-display.c
index b5678328fc40..4ca61afdf622 100644
--- a/drivers/staging/imx-drm/parallel-display.c
+++ b/drivers/staging/imx-drm/parallel-display.c
@@ -173,6 +173,13 @@ static int imx_pd_register(struct drm_device *drm,
         if (ret)
                 return ret;
 
+        /* set the connector's dpms to OFF so that
+         * drm_helper_connector_dpms() won't return
+         * immediately since the current state is ON
+         * at this point.
+         */
+        imxpd->connector.dpms = DRM_MODE_DPMS_OFF;
+
         drm_encoder_helper_add(&imxpd->encoder, &imx_pd_encoder_helper_funcs);
         drm_encoder_init(drm, &imxpd->encoder, &imx_pd_encoder_funcs,
                          DRM_MODE_ENCODER_NONE);
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index f95569dedc88..f44f1ba762c3 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1214,15 +1214,16 @@ static void n_tty_receive_parity_error(struct tty_struct *tty, unsigned char c)
 {
         struct n_tty_data *ldata = tty->disc_data;
 
-        if (I_IGNPAR(tty))
-                return;
-        if (I_PARMRK(tty)) {
-                put_tty_queue('\377', ldata);
-                put_tty_queue('\0', ldata);
-                put_tty_queue(c, ldata);
-        } else  if (I_INPCK(tty))
-                put_tty_queue('\0', ldata);
-        else
+        if (I_INPCK(tty)) {
+                if (I_IGNPAR(tty))
+                        return;
+                if (I_PARMRK(tty)) {
+                        put_tty_queue('\377', ldata);
+                        put_tty_queue('\0', ldata);
+                        put_tty_queue(c, ldata);
+                } else
+                        put_tty_queue('\0', ldata);
+        } else
                 put_tty_queue(c, ldata);
         if (waitqueue_active(&tty->read_wait))
                 wake_up_interruptible(&tty->read_wait);
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 27f7ad6b74c1..7a91c6d1eb7d 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -2357,7 +2357,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
         port->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= UART_LSR_BI;
 
         /*
diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c
index cfef801a49d4..4858b8a99d3b 100644
--- a/drivers/tty/serial/8250/8250_early.c
+++ b/drivers/tty/serial/8250/8250_early.c
@@ -144,8 +144,11 @@ static int __init early_serial8250_setup(struct earlycon_device *device,
         if (!(device->port.membase || device->port.iobase))
                 return 0;
 
-        if (!device->baud)
+        if (!device->baud) {
                 device->baud = probe_baud(&device->port);
+                snprintf(device->options, sizeof(device->options), "%u",
+                         device->baud);
+        }
 
         init_port(device);
 
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index 501667e3e3f5..323376668b72 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -185,6 +185,12 @@ static void altera_uart_set_termios(struct uart_port *port,
         uart_update_timeout(port, termios->c_cflag, baud);
         altera_uart_writel(port, baudclk, ALTERA_UART_DIVISOR_REG);
         spin_unlock_irqrestore(&port->lock, flags);
+
+        /*
+         * FIXME: port->read_status_mask and port->ignore_status_mask
+         * need to be initialized based on termios settings for
+         * INPCK, IGNBRK, IGNPAR, PARMRK, BRKINT
+         */
 }
 
 static void altera_uart_rx_chars(struct altera_uart *pp)
diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index 01c9e72433e1..971af1e22d0f 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -420,7 +420,7 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios,
         uap->port.read_status_mask = UART01x_RSR_OE;
         if (termios->c_iflag & INPCK)
                 uap->port.read_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 uap->port.read_status_mask |= UART01x_RSR_BE;
 
         /*
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 908a6e3142a2..0e26dcbd5ea4 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -1744,7 +1744,7 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios,
         port->read_status_mask = UART011_DR_OE | 255;
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= UART011_DR_FE | UART011_DR_PE;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= UART011_DR_BE;
 
         /*
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 3fceae099c44..c4f750314100 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1932,7 +1932,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios,
         port->read_status_mask = ATMEL_US_OVRE;
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= (ATMEL_US_FRAME | ATMEL_US_PARE);
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= ATMEL_US_RXBRK;
 
         if (atmel_use_pdc_rx(port))
diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c
index a47421e4627c..231519022b73 100644
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -567,7 +567,7 @@ static void bcm_uart_set_termios(struct uart_port *port,
                 port->read_status_mask |= UART_FIFO_FRAMEERR_MASK;
                 port->read_status_mask |= UART_FIFO_PARERR_MASK;
         }
-        if (new->c_iflag & (BRKINT))
+        if (new->c_iflag & (IGNBRK | BRKINT))
                 port->read_status_mask |= UART_FIFO_BRKDET_MASK;
 
         port->ignore_status_mask = 0;
diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index 869ceba2ec57..ac86a20992e9 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -833,7 +833,7 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios,
         port->read_status_mask = OE;
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= (FE | PE);
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= BI;
 
         /*
diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c
index 2f2b2e538a54..cdbbc788230a 100644
--- a/drivers/tty/serial/dz.c
+++ b/drivers/tty/serial/dz.c
@@ -625,7 +625,7 @@ static void dz_set_termios(struct uart_port *uport, struct ktermios *termios,
         dport->port.read_status_mask = DZ_OERR;
         if (termios->c_iflag & INPCK)
                 dport->port.read_status_mask |= DZ_FERR | DZ_PERR;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 dport->port.read_status_mask |= DZ_BREAK;
 
         /* characters to ignore */
diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index 5131b5ee6164..a514ee6f5406 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -25,7 +25,7 @@
 #include <asm/serial.h>
 
 static struct console early_con = {
-        .name =         "earlycon",
+        .name =         "uart", /* 8250 console switch requires this name */
         .flags =        CON_PRINTBUFFER | CON_BOOT,
         .index =        -1,
 };
diff --git a/drivers/tty/serial/efm32-uart.c b/drivers/tty/serial/efm32-uart.c
index b373f6416e8c..3b0ee9afd76f 100644
--- a/drivers/tty/serial/efm32-uart.c
+++ b/drivers/tty/serial/efm32-uart.c
@@ -407,7 +407,7 @@ static void efm32_uart_set_termios(struct uart_port *port,
         if (new->c_iflag & INPCK)
                 port->read_status_mask |=
                         UARTn_RXDATAX_FERR | UARTn_RXDATAX_PERR;
-        if (new->c_iflag & (BRKINT | PARMRK))
+        if (new->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= SW_UARTn_RXDATAX_BERR;
 
         port->ignore_status_mask = 0;
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index c5eb897de9de..49385c86cfba 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -902,7 +902,7 @@ lpuart_set_termios(struct uart_port *port, struct ktermios *termios,
         sport->port.read_status_mask = 0;
         if (termios->c_iflag & INPCK)
                 sport->port.read_status_mask |= (UARTSR1_FE | UARTSR1_PE);
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 sport->port.read_status_mask |= UARTSR1_FE;
 
         /* characters to ignore */
diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c
index 1d9420548e16..1efd4c36ba0c 100644
--- a/drivers/tty/serial/ip22zilog.c
+++ b/drivers/tty/serial/ip22zilog.c
@@ -850,7 +850,7 @@ ip22zilog_convert_to_zs(struct uart_ip22zilog_port *up, unsigned int cflag,
         up->port.read_status_mask = Rx_OVR;
         if (iflag & INPCK)
                 up->port.read_status_mask |= CRC_ERR | PAR_ERR;
-        if (iflag & (BRKINT | PARMRK))
+        if (iflag & (IGNBRK | BRKINT | PARMRK))
                 up->port.read_status_mask |= BRK_ABRT;
 
         up->port.ignore_status_mask = 0;
diff --git a/drivers/tty/serial/m32r_sio.c b/drivers/tty/serial/m32r_sio.c
index 9cd9b4eba9fc..68f2c53e0b54 100644
--- a/drivers/tty/serial/m32r_sio.c
+++ b/drivers/tty/serial/m32r_sio.c
@@ -737,7 +737,7 @@ static void m32r_sio_set_termios(struct uart_port *port,
         up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
         if (termios->c_iflag & INPCK)
                 up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 up->port.read_status_mask |= UART_LSR_BI;
 
         /*
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 2a99d0c61b9e..ba285cd45b59 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -835,7 +835,7 @@ static void max310x_set_termios(struct uart_port *port,
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= MAX310X_LSR_RXPAR_BIT |
                                           MAX310X_LSR_FRERR_BIT;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= MAX310X_LSR_RXBRK_BIT;
 
         /* Set status ignore mask */
diff --git a/drivers/tty/serial/mcf.c b/drivers/tty/serial/mcf.c
index 0edfaf8cd269..a6f085717f94 100644
--- a/drivers/tty/serial/mcf.c
+++ b/drivers/tty/serial/mcf.c
@@ -248,6 +248,12 @@ static void mcf_set_termios(struct uart_port *port, struct ktermios *termios,
                 mr1 |= MCFUART_MR1_PARITYNONE;
         }
 
+        /*
+         * FIXME: port->read_status_mask and port->ignore_status_mask
+         * need to be initialized based on termios settings for
+         * INPCK, IGNBRK, IGNPAR, PARMRK, BRKINT
+         */
+
         if (termios->c_cflag & CSTOPB)
                 mr2 |= MCFUART_MR2_STOP2;
         else
diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index 52c930fac210..445799dc9846 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -977,7 +977,7 @@ serial_hsu_set_termios(struct uart_port *port, struct ktermios *termios,
         up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
         if (termios->c_iflag & INPCK)
                 up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 up->port.read_status_mask |= UART_LSR_BI;
 
         /* Characters to ignore */
diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index e30a3ca3cea3..759c6a6fa74a 100644
--- a/drivers/tty/serial/mpsc.c
+++ b/drivers/tty/serial/mpsc.c
@@ -1458,7 +1458,7 @@ static void mpsc_set_termios(struct uart_port *port, struct ktermios *termios,
                 pi->port.read_status_mask |= SDMA_DESC_CMDSTAT_PE
                         | SDMA_DESC_CMDSTAT_FR;
 
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 pi->port.read_status_mask |= SDMA_DESC_CMDSTAT_BR;
 
         /* Characters/events to ignore */
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 778e376f197e..c41aca4dfc43 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -582,7 +582,7 @@ static void msm_set_termios(struct uart_port *port, struct ktermios *termios,
         port->read_status_mask = 0;
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= UART_SR_PAR_FRAME_ERR;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= UART_SR_RX_BREAK;
 
         uart_update_timeout(port, termios->c_cflag, baud);
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 4b5b3c2fe328..86de4477d98a 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -604,7 +604,7 @@ static void mxs_auart_settermios(struct uart_port *u,
 
         if (termios->c_iflag & INPCK)
                 u->read_status_mask |= AUART_STAT_PERR;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 u->read_status_mask |= AUART_STAT_BERR;
 
         /*
diff --git a/drivers/tty/serial/netx-serial.c b/drivers/tty/serial/netx-serial.c
index 0a4dd70d29eb..7a6745601d4e 100644
--- a/drivers/tty/serial/netx-serial.c
+++ b/drivers/tty/serial/netx-serial.c
@@ -419,7 +419,7 @@ netx_set_termios(struct uart_port *port, struct ktermios *termios,
         }
 
         port->read_status_mask = 0;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= SR_BE;
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= SR_PE | SR_FE;
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index e9d420ff3931..8193635103ee 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1092,7 +1092,7 @@ static void pmz_convert_to_zs(struct uart_pmac_port *uap, unsigned int cflag,
         uap->port.read_status_mask = Rx_OVR;
         if (iflag & INPCK)
                 uap->port.read_status_mask |= CRC_ERR | PAR_ERR;
-        if (iflag & (BRKINT | PARMRK))
+        if (iflag & (IGNBRK | BRKINT | PARMRK))
                 uap->port.read_status_mask |= BRK_ABRT;
 
         uap->port.ignore_status_mask = 0;
diff --git a/drivers/tty/serial/pnx8xxx_uart.c b/drivers/tty/serial/pnx8xxx_uart.c
index de6c05c63683..2ba24a45c97f 100644
--- a/drivers/tty/serial/pnx8xxx_uart.c
+++ b/drivers/tty/serial/pnx8xxx_uart.c
@@ -477,7 +477,7 @@ pnx8xxx_set_termios(struct uart_port *port, struct ktermios *termios,
                 sport->port.read_status_mask |=
                         FIFO_TO_SM(PNX8XXX_UART_FIFO_RXFE) |
                         FIFO_TO_SM(PNX8XXX_UART_FIFO_RXPAR);
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 sport->port.read_status_mask |=
                         ISTAT_TO_SM(PNX8XXX_UART_INT_BREAK);
 
diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index 9e7ee39f8b2a..c638c53cd2b6 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -492,7 +492,7 @@ serial_pxa_set_termios(struct uart_port *port, struct ktermios *termios,
         up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
         if (termios->c_iflag & INPCK)
                 up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 up->port.read_status_mask |= UART_LSR_BI;
 
         /*
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 329337711bb0..c1d3ebdf3b97 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -66,7 +66,7 @@ static void dbg(const char *fmt, ...)
         char buff[256];
 
         va_start(va, fmt);
-        vscnprintf(buff, sizeof(buf), fmt, va);
+        vscnprintf(buff, sizeof(buff), fmt, va);
         va_end(va);
 
         printascii(buff);
diff --git a/drivers/tty/serial/sb1250-duart.c b/drivers/tty/serial/sb1250-duart.c
index a7cdec2962dd..771f361c47ea 100644
--- a/drivers/tty/serial/sb1250-duart.c
+++ b/drivers/tty/serial/sb1250-duart.c
@@ -596,7 +596,7 @@ static void sbd_set_termios(struct uart_port *uport, struct ktermios *termios,
         if (termios->c_iflag & INPCK)
                 uport->read_status_mask |= M_DUART_FRM_ERR |
                                            M_DUART_PARITY_ERR;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 uport->read_status_mask |= M_DUART_RCVD_BRK;
 
         uport->ignore_status_mask = 0;
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index 5443b46345ed..e84b6a3bdd18 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -665,7 +665,7 @@ static void sccnxp_set_termios(struct uart_port *port,
         port->read_status_mask = SR_OVR;
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= SR_PE | SR_FE;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= SR_BRK;
 
         /* Set status ignore mask */
diff --git a/drivers/tty/serial/serial_ks8695.c b/drivers/tty/serial/serial_ks8695.c
index e1caa99e3d3b..5c79bdab985d 100644
--- a/drivers/tty/serial/serial_ks8695.c
+++ b/drivers/tty/serial/serial_ks8695.c
@@ -437,7 +437,7 @@ static void ks8695uart_set_termios(struct uart_port *port, struct ktermios *term
         port->read_status_mask = URLS_URROE;
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= (URLS_URFE | URLS_URPE);
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= URLS_URBI;
 
         /*
diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index 60f49b9d7e39..ea8546092c7e 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -697,7 +697,7 @@ serial_txx9_set_termios(struct uart_port *port, struct ktermios *termios,
                 TXX9_SIDISR_TDIS | TXX9_SIDISR_RDIS;
         if (termios->c_iflag & INPCK)
                 up->port.read_status_mask |= TXX9_SIDISR_UFER | TXX9_SIDISR_UPER;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 up->port.read_status_mask |= TXX9_SIDISR_UBRK;
 
         /*
diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index 1f2be48c92ce..9b4d71cff00d 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -896,7 +896,7 @@ static void sirfsoc_uart_set_termios(struct uart_port *port,
                 if (termios->c_iflag & INPCK)
                         port->read_status_mask |= uint_en->sirfsoc_frm_err_en;
         }
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                         port->read_status_mask |= uint_en->sirfsoc_rxd_brk_en;
         if (sirfport->uart_reg->uart_type == SIRF_REAL_UART) {
                 if (termios->c_iflag & IGNPAR)
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index c7f61ac27132..f48b1cc07eea 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -547,7 +547,7 @@ static void asc_set_termios(struct uart_port *port, struct ktermios *termios,
         ascport->port.read_status_mask = ASC_RXBUF_DUMMY_OE;
         if (termios->c_iflag & INPCK)
                 ascport->port.read_status_mask |= ASC_RXBUF_FE | ASC_RXBUF_PE;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 ascport->port.read_status_mask |= ASC_RXBUF_DUMMY_BE;
 
         /*
diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
index 5faa8e905e98..80a58eca785b 100644
--- a/drivers/tty/serial/sunsab.c
+++ b/drivers/tty/serial/sunsab.c
@@ -719,7 +719,7 @@ static void sunsab_convert_to_sab(struct uart_sunsab_port *up, unsigned int cfla
         if (iflag & INPCK)
                 up->port.read_status_mask |= (SAB82532_ISR0_PERR |
                                               SAB82532_ISR0_FERR);
-        if (iflag & (BRKINT | PARMRK))
+        if (iflag & (IGNBRK | BRKINT | PARMRK))
                 up->port.read_status_mask |= (SAB82532_ISR1_BRK << 8);
 
         /*
diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c
index 9a0f24f83720..5326ae195e5f 100644
--- a/drivers/tty/serial/sunsu.c
+++ b/drivers/tty/serial/sunsu.c
@@ -834,7 +834,7 @@ sunsu_change_speed(struct uart_port *port, unsigned int cflag,
         up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
         if (iflag & INPCK)
                 up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-        if (iflag & (BRKINT | PARMRK))
+        if (iflag & (IGNBRK | BRKINT | PARMRK))
                 up->port.read_status_mask |= UART_LSR_BI;
 
         /*
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index a2c40ed287d2..a85db8b87156 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -915,7 +915,7 @@ sunzilog_convert_to_zs(struct uart_sunzilog_port *up, unsigned int cflag,
         up->port.read_status_mask = Rx_OVR;
         if (iflag & INPCK)
                 up->port.read_status_mask |= CRC_ERR | PAR_ERR;
-        if (iflag & (BRKINT | PARMRK))
+        if (iflag & (IGNBRK | BRKINT | PARMRK))
                 up->port.read_status_mask |= BRK_ABRT;
 
         up->port.ignore_status_mask = 0;
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index d569ca58bab6..1c52074c38df 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -936,7 +936,7 @@ static void qe_uart_set_termios(struct uart_port *port,
         port->read_status_mask = BD_SC_EMPTY | BD_SC_OV;
         if (termios->c_iflag & INPCK)
                 port->read_status_mask |= BD_SC_FR | BD_SC_PR;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= BD_SC_BR;
 
         /*
diff --git a/drivers/tty/serial/vr41xx_siu.c b/drivers/tty/serial/vr41xx_siu.c
index a63c14bc9a24..db0c8a4ab03e 100644
--- a/drivers/tty/serial/vr41xx_siu.c
+++ b/drivers/tty/serial/vr41xx_siu.c
@@ -559,7 +559,7 @@ static void siu_set_termios(struct uart_port *port, struct ktermios *new,
         port->read_status_mask = UART_LSR_THRE | UART_LSR_OE | UART_LSR_DR;
         if (c_iflag & INPCK)
                 port->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-        if (c_iflag & (BRKINT | PARMRK))
+        if (c_iflag & (IGNBRK | BRKINT | PARMRK))
                 port->read_status_mask |= UART_LSR_BI;
 
         port->ignore_status_mask = 0;
diff --git a/drivers/tty/serial/zs.c b/drivers/tty/serial/zs.c
index 6a169877109b..2b65bb7ffb8a 100644
--- a/drivers/tty/serial/zs.c
+++ b/drivers/tty/serial/zs.c
@@ -923,7 +923,7 @@ static void zs_set_termios(struct uart_port *uport, struct ktermios *termios,
         uport->read_status_mask = Rx_OVR;
         if (termios->c_iflag & INPCK)
                 uport->read_status_mask |= FRM_ERR | PAR_ERR;
-        if (termios->c_iflag & (BRKINT | PARMRK))
+        if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
                 uport->read_status_mask |= Rx_BRK;
 
         uport->ignore_status_mask = 0;
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 5e0f6ff2e2f5..b33b00b386de 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -3226,8 +3226,7 @@ int do_unbind_con_driver(const struct consw *csw, int first, int last, int deflt
         for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
                 con_back = &registered_con_driver[i];
 
-                if (con_back->con &&
-                    !(con_back->flag & CON_DRIVER_FLAG_MODULE)) {
+                if (con_back->con && con_back->con != csw) {
                         defcsw = con_back->con;
                         retval = 0;
                         break;
@@ -3332,6 +3331,7 @@ static int vt_unbind(struct con_driver *con)
 {
         const struct consw *csw = NULL;
         int i, more = 1, first = -1, last = -1, deflt = 0;
+        int ret;
 
         if (!con->con || !(con->flag & CON_DRIVER_FLAG_MODULE) ||
             con_is_graphics(con->con, con->first, con->last))
@@ -3357,8 +3357,10 @@ static int vt_unbind(struct con_driver *con)
 
                 if (first != -1) {
                         console_lock();
-                        do_unbind_con_driver(csw, first, last, deflt);
+                        ret = do_unbind_con_driver(csw, first, last, deflt);
                         console_unlock();
+                        if (ret != 0)
+                                return ret;
                 }
 
                 first = -1;
@@ -3645,17 +3647,20 @@ err:
  */
 int do_unregister_con_driver(const struct consw *csw)
 {
-        int i, retval = -ENODEV;
+        int i;
 
         /* cannot unregister a bound driver */
         if (con_is_bound(csw))
-                goto err;
+                return -EBUSY;
+
+        if (csw == conswitchp)
+                return -EINVAL;
 
         for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
                 struct con_driver *con_driver = &registered_con_driver[i];
 
                 if (con_driver->con == csw &&
-                    con_driver->flag & CON_DRIVER_FLAG_MODULE) {
+                    con_driver->flag & CON_DRIVER_FLAG_INIT) {
                         vtconsole_deinit_device(con_driver);
                         device_destroy(vtconsole_class,
                                        MKDEV(0, con_driver->node));
@@ -3666,12 +3671,11 @@ int do_unregister_con_driver(const struct consw *csw)
                         con_driver->flag = 0;
                         con_driver->first = 0;
                         con_driver->last = 0;
-                        retval = 0;
-                        break;
+                        return 0;
                 }
         }
-err:
-        return retval;
+
+        return -ENODEV;
 }
 EXPORT_SYMBOL_GPL(do_unregister_con_driver);
 
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index e371f5af11f5..a673e5b6a2e0 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -655,7 +655,7 @@ static int uio_mmap_physical(struct vm_area_struct *vma)
 
         if (mem->addr & ~PAGE_MASK)
                 return -ENODEV;
-        if (vma->vm_end - vma->vm_start > PAGE_ALIGN(mem->size))
+        if (vma->vm_end - vma->vm_start > mem->size)
                 return -EINVAL;
 
         vma->vm_ops = &uio_physical_vm_ops;
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 879b66e13370..21b99b4b4082 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1526,18 +1526,6 @@ static int hub_configure(struct usb_hub *hub,
                 dev_dbg(hub_dev, "%umA bus power budget for each child\n",
                                 hub->mA_per_port);
 
-        /* Update the HCD's internal representation of this hub before khubd
-         * starts getting port status changes for devices under the hub.
-         */
-        if (hcd->driver->update_hub_device) {
-                ret = hcd->driver->update_hub_device(hcd, hdev,
-                                &hub->tt, GFP_KERNEL);
-                if (ret < 0) {
-                        message = "can't update HCD hub info";
-                        goto fail;
-                }
-        }
-
         ret = hub_hub_status(hub, &hubstatus, &hubchange);
         if (ret < 0) {
                 message = "can't get hub status";
@@ -1589,10 +1577,28 @@ static int hub_configure(struct usb_hub *hub,
                 }
         }
         hdev->maxchild = i;
+        for (i = 0; i < hdev->maxchild; i++) {
+                struct usb_port *port_dev = hub->ports[i];
+
+                pm_runtime_put(&port_dev->dev);
+        }
+
         mutex_unlock(&usb_port_peer_mutex);
         if (ret < 0)
                 goto fail;
 
+        /* Update the HCD's internal representation of this hub before khubd
+         * starts getting port status changes for devices under the hub.
+         */
+        if (hcd->driver->update_hub_device) {
+                ret = hcd->driver->update_hub_device(hcd, hdev,
+                                &hub->tt, GFP_KERNEL);
+                if (ret < 0) {
+                        message = "can't update HCD hub info";
+                        goto fail;
+                }
+        }
+
         usb_hub_adjust_deviceremovable(hdev, hub->descriptor);
 
         hub_activate(hub, HUB_INIT);
@@ -3458,7 +3464,8 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg)
                 struct usb_device *udev = port_dev->child;
 
                 if (udev && udev->can_submit) {
-                        dev_warn(&port_dev->dev, "not suspended yet\n");
+                        dev_warn(&port_dev->dev, "device %s not suspended yet\n",
+                                        dev_name(&udev->dev));
                         if (PMSG_IS_AUTO(msg))
                                 return -EBUSY;
                 }
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h
index 0a7cdc0ef0a9..326308e53961 100644
--- a/drivers/usb/core/hub.h
+++ b/drivers/usb/core/hub.h
@@ -84,6 +84,7 @@ struct usb_hub {
  * @dev: generic device interface
  * @port_owner: port's owner
  * @peer: related usb2 and usb3 ports (share the same connector)
+ * @req: default pm qos request for hubs without port power control
  * @connect_type: port's connect type
  * @location: opaque representation of platform connector location
  * @status_lock: synchronize port_event() vs usb_port_{suspend|resume}
@@ -95,6 +96,7 @@ struct usb_port {
         struct device dev;
         struct usb_dev_state *port_owner;
         struct usb_port *peer;
+        struct dev_pm_qos_request *req;
         enum usb_port_connect_type connect_type;
         usb_port_location_t location;
         struct mutex status_lock;
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 62036faf56c0..fe1b6d0967e3 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -21,6 +21,8 @@
 
 #include "hub.h"
 
+static int usb_port_block_power_off;
+
 static const struct attribute_group *port_dev_group[];
 
 static ssize_t connect_type_show(struct device *dev,
@@ -66,6 +68,7 @@ static void usb_port_device_release(struct device *dev)
 {
         struct usb_port *port_dev = to_usb_port(dev);
 
+        kfree(port_dev->req);
         kfree(port_dev);
 }
 
@@ -142,6 +145,9 @@ static int usb_port_runtime_suspend(struct device *dev)
                         == PM_QOS_FLAGS_ALL)
                 return -EAGAIN;
 
+        if (usb_port_block_power_off)
+                return -EBUSY;
+
         usb_autopm_get_interface(intf);
         retval = usb_hub_set_port_power(hdev, hub, port1, false);
         usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_CONNECTION);
@@ -190,11 +196,19 @@ static int link_peers(struct usb_port *left, struct usb_port *right)
         if (left->peer || right->peer) {
                 struct usb_port *lpeer = left->peer;
                 struct usb_port *rpeer = right->peer;
-
-                WARN(1, "failed to peer %s and %s (%s -> %p) (%s -> %p)\n",
-                        dev_name(&left->dev), dev_name(&right->dev),
-                        dev_name(&left->dev), lpeer,
-                        dev_name(&right->dev), rpeer);
+                char *method;
+
+                if (left->location && left->location == right->location)
+                        method = "location";
+                else
+                        method = "default";
+
+                pr_warn("usb: failed to peer %s and %s by %s (%s:%s) (%s:%s)\n",
+                        dev_name(&left->dev), dev_name(&right->dev), method,
+                        dev_name(&left->dev),
+                        lpeer ? dev_name(&lpeer->dev) : "none",
+                        dev_name(&right->dev),
+                        rpeer ? dev_name(&rpeer->dev) : "none");
                 return -EBUSY;
         }
 
@@ -251,6 +265,7 @@ static void link_peers_report(struct usb_port *left, struct usb_port *right)
                 dev_warn(&left->dev, "failed to peer to %s (%d)\n",
                                 dev_name(&right->dev), rc);
                 pr_warn_once("usb: port power management may be unreliable\n");
+                usb_port_block_power_off = 1;
         }
 }
 
@@ -386,9 +401,13 @@ int usb_hub_create_port_device(struct usb_hub *hub, int port1)
         int retval;
 
         port_dev = kzalloc(sizeof(*port_dev), GFP_KERNEL);
-        if (!port_dev) {
-                retval = -ENOMEM;
-                goto exit;
+        if (!port_dev)
+                return -ENOMEM;
+
+        port_dev->req = kzalloc(sizeof(*(port_dev->req)), GFP_KERNEL);
+        if (!port_dev->req) {
+                kfree(port_dev);
+                return -ENOMEM;
         }
 
         hub->ports[port1 - 1] = port_dev;
@@ -404,31 +423,53 @@ int usb_hub_create_port_device(struct usb_hub *hub, int port1)
                         port1);
         mutex_init(&port_dev->status_lock);
         retval = device_register(&port_dev->dev);
-        if (retval)
-                goto error_register;
+        if (retval) {
+                put_device(&port_dev->dev);
+                return retval;
+        }
+
+        /* Set default policy of port-poweroff disabled. */
+        retval = dev_pm_qos_add_request(&port_dev->dev, port_dev->req,
+                        DEV_PM_QOS_FLAGS, PM_QOS_FLAG_NO_POWER_OFF);
+        if (retval < 0) {
+                device_unregister(&port_dev->dev);
+                return retval;
+        }
 
         find_and_link_peer(hub, port1);
 
+        /*
+         * Enable runtime pm and hold a refernce that hub_configure()
+         * will drop once the PM_QOS_NO_POWER_OFF flag state has been set
+         * and the hub has been fully registered (hdev->maxchild set).
+         */
         pm_runtime_set_active(&port_dev->dev);
+        pm_runtime_get_noresume(&port_dev->dev);
+        pm_runtime_enable(&port_dev->dev);
+        device_enable_async_suspend(&port_dev->dev);
 
         /*
-         * Do not enable port runtime pm if the hub does not support
-         * power switching.  Also, userspace must have final say of
-         * whether a port is permitted to power-off.  Do not enable
-         * runtime pm if we fail to expose pm_qos_no_power_off.
+         * Keep hidden the ability to enable port-poweroff if the hub
+         * does not support power switching.
          */
-        if (hub_is_port_power_switchable(hub)
-                        && dev_pm_qos_expose_flags(&port_dev->dev,
-                        PM_QOS_FLAG_NO_POWER_OFF) == 0)
-                pm_runtime_enable(&port_dev->dev);
+        if (!hub_is_port_power_switchable(hub))
+                return 0;
 
-        device_enable_async_suspend(&port_dev->dev);
-        return 0;
+        /* Attempt to let userspace take over the policy. */
+        retval = dev_pm_qos_expose_flags(&port_dev->dev,
+                        PM_QOS_FLAG_NO_POWER_OFF);
+        if (retval < 0) {
+                dev_warn(&port_dev->dev, "failed to expose pm_qos_no_poweroff\n");
+                return 0;
+        }
 
-error_register:
-        put_device(&port_dev->dev);
-exit:
-        return retval;
+        /* Userspace owns the policy, drop the kernel 'no_poweroff' request. */
+        retval = dev_pm_qos_remove_request(port_dev->req);
+        if (retval >= 0) {
+                kfree(port_dev->req);
+                port_dev->req = NULL;
+        }
+        return 0;
 }
 
 void usb_hub_remove_port_device(struct usb_hub *hub, int port1)
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 4a6d3dd68572..2f3acebb577a 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -656,6 +656,14 @@ static const struct dmi_system_id ehci_dmi_nohandoff_table[] = {
                         DMI_MATCH(DMI_BIOS_VERSION, "Lucid-"),
                 },
         },
+        {
+                /* HASEE E200 */
+                .matches = {
+                        DMI_MATCH(DMI_BOARD_VENDOR, "HASEE"),
+                        DMI_MATCH(DMI_BOARD_NAME, "E210"),
+                        DMI_MATCH(DMI_BIOS_VERSION, "6.00"),
+                },
+        },
         { }
 };
 
@@ -665,9 +673,14 @@ static void ehci_bios_handoff(struct pci_dev *pdev,
 {
         int try_handoff = 1, tried_handoff = 0;
 
-        /* The Pegatron Lucid tablet sporadically waits for 98 seconds trying
-         * the handoff on its unused controller.  Skip it. */
-        if (pdev->vendor == 0x8086 && pdev->device == 0x283a) {
+        /*
+         * The Pegatron Lucid tablet sporadically waits for 98 seconds trying
+         * the handoff on its unused controller.  Skip it.
+         *
+         * The HASEE E200 hangs when the semaphore is set (bugzilla #77021).
+         */
+        if (pdev->vendor == 0x8086 && (pdev->device == 0x283a ||
+                        pdev->device == 0x27cc)) {
                 if (dmi_check_system(ehci_dmi_nohandoff_table))
                         try_handoff = 0;
         }
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 6231ce6aa0c3..2b998c60faf2 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -287,7 +287,7 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
                 if (virt_dev->eps[i].ring && virt_dev->eps[i].ring->dequeue) {
                         struct xhci_command *command;
                         command = xhci_alloc_command(xhci, false, false,
-                                                     GFP_NOIO);
+                                                     GFP_NOWAIT);
                         if (!command) {
                                 spin_unlock_irqrestore(&xhci->lock, flags);
                                 xhci_free_command(xhci, cmd);
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 51a6da256772..829f446064ea 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -7,7 +7,7 @@
 #include <linux/moduleparam.h>
 #include <linux/scatterlist.h>
 #include <linux/mutex.h>
-
+#include <linux/timer.h>
 #include <linux/usb.h>
 
 #define SIMPLE_IO_TIMEOUT       10000   /* in milliseconds */
@@ -484,6 +484,14 @@ alloc_sglist(int nents, int max, int vary)
         return sg;
 }
 
+static void sg_timeout(unsigned long _req)
+{
+        struct usb_sg_request   *req = (struct usb_sg_request *) _req;
+
+        req->status = -ETIMEDOUT;
+        usb_sg_cancel(req);
+}
+
 static int perform_sglist(
         struct usbtest_dev      *tdev,
         unsigned                iterations,
@@ -495,6 +503,9 @@ static int perform_sglist(
 {
         struct usb_device       *udev = testdev_to_usbdev(tdev);
         int                     retval = 0;
+        struct timer_list       sg_timer;
+
+        setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);
 
         while (retval == 0 && iterations-- > 0) {
                 retval = usb_sg_init(req, udev, pipe,
@@ -505,7 +516,10 @@ static int perform_sglist(
 
                 if (retval)
                         break;
+                mod_timer(&sg_timer, jiffies +
+                                msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
                 usb_sg_wait(req);
+                del_timer_sync(&sg_timer);
                 retval = req->status;
 
                 /* FIXME check resulting data pattern */
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index b63860f7beab..40bec8d64b0a 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -77,3 +77,4 @@ const struct consw dummy_con = {
     .con_set_palette =  DUMMY,
     .con_scrolldelta =  DUMMY,
 };
+EXPORT_SYMBOL_GPL(dummy_con);
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index f267284b423b..6e6aa704fe84 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1441,5 +1441,6 @@ const struct consw vga_con = {
         .con_build_attr = vgacon_build_attr,
         .con_invert_region = vgacon_invert_region,
 };
+EXPORT_SYMBOL(vga_con);
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c
index 7d44d669d5b6..43a0a52fc527 100644
--- a/drivers/video/fbdev/offb.c
+++ b/drivers/video/fbdev/offb.c
@@ -91,15 +91,6 @@ extern boot_infos_t *boot_infos;
 #define AVIVO_DC_LUTB_WHITE_OFFSET_GREEN        0x6cd4
 #define AVIVO_DC_LUTB_WHITE_OFFSET_RED          0x6cd8
 
-#define FB_RIGHT_POS(p, bpp)         (fb_be_math(p) ? 0 : (32 - (bpp)))
-
-static inline u32 offb_cmap_byteswap(struct fb_info *info, u32 value)
-{
-        u32 bpp = info->var.bits_per_pixel;
-
-        return cpu_to_be32(value) >> FB_RIGHT_POS(info, bpp);
-}
-
     /*
      *  Set a single color register. The values supplied are already
      *  rounded down to the hardware's capabilities (according to the
@@ -129,7 +120,7 @@ static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
                         mask <<= info->var.transp.offset;
                         value |= mask;
                 }
-                pal[regno] = offb_cmap_byteswap(info, value);
+                pal[regno] = value;
                 return 0;
         }
 
diff --git a/drivers/w1/masters/mxc_w1.c b/drivers/w1/masters/mxc_w1.c
index 67b067a3e2ab..a5df5e89d456 100644
--- a/drivers/w1/masters/mxc_w1.c
+++ b/drivers/w1/masters/mxc_w1.c
@@ -66,7 +66,7 @@ static u8 mxc_w1_ds2_reset_bus(void *data)
 
                 udelay(100);
         }
-        return !!(reg_val & MXC_W1_CONTROL_PST);
+        return !(reg_val & MXC_W1_CONTROL_PST);
 }
 
 /*
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index c845527b503a..76dd54122f76 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1280,14 +1280,17 @@ config WATCHDOG_RTAS
 
 # S390 Architecture
 
-config ZVM_WATCHDOG
-        tristate "z/VM Watchdog Timer"
+config DIAG288_WATCHDOG
+        tristate "System z diag288 Watchdog"
         depends on S390
+        select WATCHDOG_CORE
         help
           IBM s/390 and zSeries machines running under z/VM 5.1 or later
           provide a virtual watchdog timer to their guest that cause a
           user define Control Program command to be executed after a
           timeout.
+          LPAR provides a very similar interface. This driver handles
+          both.
 
           To compile this driver as a module, choose M here. The module
           will be called vmwatchdog.
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 7b8a91ed20e7..468c3204c3b1 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -153,6 +153,7 @@ obj-$(CONFIG_MEN_A21_WDT) += mena21_wdt.o
 obj-$(CONFIG_WATCHDOG_RTAS) += wdrtas.o
 
 # S390 Architecture
+obj-$(CONFIG_DIAG288_WATCHDOG) += diag288_wdt.o
 
 # SUPERH (sh + sh64) Architecture
 obj-$(CONFIG_SH_WDT) += shwdt.o
diff --git a/drivers/watchdog/diag288_wdt.c b/drivers/watchdog/diag288_wdt.c
new file mode 100644
index 000000000000..429494b6c822
--- /dev/null
+++ b/drivers/watchdog/diag288_wdt.c
@@ -0,0 +1,316 @@
+/*
+ * Watchdog driver for z/VM and LPAR using the diag 288 interface.
+ *
+ * Under z/VM, expiration of the watchdog will send a "system restart" command
+ * to CP.
+ *
+ * The command can be altered using the module parameter "cmd". This is
+ * not recommended because it's only supported on z/VM but not whith LPAR.
+ *
+ * On LPAR, the watchdog will always trigger a system restart. the module
+ * paramter cmd is meaningless here.
+ *
+ *
+ * Copyright IBM Corp. 2004, 2013
+ * Author(s): Arnd Bergmann (arndb@de.ibm.com)
+ *            Philipp Hachtmann (phacht@de.ibm.com)
+ *
+ */
+
+#define KMSG_COMPONENT "diag288_wdt"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/slab.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/suspend.h>
+#include <asm/ebcdic.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#define MAX_CMDLEN 240
+#define DEFAULT_CMD "SYSTEM RESTART"
+
+#define MIN_INTERVAL 15     /* Minimal time supported by diag88 */
+#define MAX_INTERVAL 3600   /* One hour should be enough - pure estimation */
+
+#define WDT_DEFAULT_TIMEOUT 30
+
+/* Function codes - init, change, cancel */
+#define WDT_FUNC_INIT 0
+#define WDT_FUNC_CHANGE 1
+#define WDT_FUNC_CANCEL 2
+#define WDT_FUNC_CONCEAL 0x80000000
+
+/* Action codes for LPAR watchdog */
+#define LPARWDT_RESTART 0
+
+static char wdt_cmd[MAX_CMDLEN] = DEFAULT_CMD;
+static bool conceal_on;
+static bool nowayout_info = WATCHDOG_NOWAYOUT;
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Arnd Bergmann <arndb@de.ibm.com>");
+MODULE_AUTHOR("Philipp Hachtmann <phacht@de.ibm.com>");
+
+MODULE_DESCRIPTION("System z diag288  Watchdog Timer");
+
+module_param_string(cmd, wdt_cmd, MAX_CMDLEN, 0644);
+MODULE_PARM_DESC(cmd, "CP command that is run when the watchdog triggers (z/VM only)");
+
+module_param_named(conceal, conceal_on, bool, 0644);
+MODULE_PARM_DESC(conceal, "Enable the CONCEAL CP option while the watchdog is active (z/VM only)");
+
+module_param_named(nowayout, nowayout_info, bool, 0444);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default = CONFIG_WATCHDOG_NOWAYOUT)");
+
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("vmwatchdog");
+
+static int __diag288(unsigned int func, unsigned int timeout,
+                     unsigned long action, unsigned int len)
+{
+        register unsigned long __func asm("2") = func;
+        register unsigned long __timeout asm("3") = timeout;
+        register unsigned long __action asm("4") = action;
+        register unsigned long __len asm("5") = len;
+        int err;
+
+        err = -EINVAL;
+        asm volatile(
+                "       diag    %1, %3, 0x288\n"
+                "0:     la      %0, 0\n"
+                "1:\n"
+                EX_TABLE(0b, 1b)
+                : "+d" (err) : "d"(__func), "d"(__timeout),
+                  "d"(__action), "d"(__len) : "1", "cc");
+        return err;
+}
+
+static int __diag288_vm(unsigned int  func, unsigned int timeout,
+                        char *cmd, size_t len)
+{
+        return __diag288(func, timeout, virt_to_phys(cmd), len);
+}
+
+static int __diag288_lpar(unsigned int func, unsigned int timeout,
+                          unsigned long action)
+{
+        return __diag288(func, timeout, action, 0);
+}
+
+static int wdt_start(struct watchdog_device *dev)
+{
+        char *ebc_cmd;
+        size_t len;
+        int ret;
+        unsigned int func;
+
+        ret = -ENODEV;
+
+        if (MACHINE_IS_VM) {
+                ebc_cmd = kmalloc(MAX_CMDLEN, GFP_KERNEL);
+                if (!ebc_cmd)
+                        return -ENOMEM;
+                len = strlcpy(ebc_cmd, wdt_cmd, MAX_CMDLEN);
+                ASCEBC(ebc_cmd, MAX_CMDLEN);
+                EBC_TOUPPER(ebc_cmd, MAX_CMDLEN);
+
+                func = conceal_on ? (WDT_FUNC_INIT | WDT_FUNC_CONCEAL)
+                        : WDT_FUNC_INIT;
+                ret = __diag288_vm(func, dev->timeout, ebc_cmd, len);
+                WARN_ON(ret != 0);
+                kfree(ebc_cmd);
+        }
+
+        if (MACHINE_IS_LPAR) {
+                ret = __diag288_lpar(WDT_FUNC_INIT,
+                                     dev->timeout, LPARWDT_RESTART);
+        }
+
+        if (ret) {
+                pr_err("The watchdog cannot be activated\n");
+                return ret;
+        }
+        pr_info("The watchdog was activated\n");
+        return 0;
+}
+
+static int wdt_stop(struct watchdog_device *dev)
+{
+        int ret;
+
+        ret = __diag288(WDT_FUNC_CANCEL, 0, 0, 0);
+        pr_info("The watchdog was deactivated\n");
+        return ret;
+}
+
+static int wdt_ping(struct watchdog_device *dev)
+{
+        char *ebc_cmd;
+        size_t len;
+        int ret;
+        unsigned int func;
+
+        ret = -ENODEV;
+
+        if (MACHINE_IS_VM) {
+                ebc_cmd = kmalloc(MAX_CMDLEN, GFP_KERNEL);
+                if (!ebc_cmd)
+                        return -ENOMEM;
+                len = strlcpy(ebc_cmd, wdt_cmd, MAX_CMDLEN);
+                ASCEBC(ebc_cmd, MAX_CMDLEN);
+                EBC_TOUPPER(ebc_cmd, MAX_CMDLEN);
+
+                /*
+                 * It seems to be ok to z/VM to use the init function to
+                 * retrigger the watchdog. On LPAR WDT_FUNC_CHANGE must
+                 * be used when the watchdog is running.
+                 */
+                func = conceal_on ? (WDT_FUNC_INIT | WDT_FUNC_CONCEAL)
+                        : WDT_FUNC_INIT;
+
+                ret = __diag288_vm(func, dev->timeout, ebc_cmd, len);
+                WARN_ON(ret != 0);
+                kfree(ebc_cmd);
+        }
+
+        if (MACHINE_IS_LPAR)
+                ret = __diag288_lpar(WDT_FUNC_CHANGE, dev->timeout, 0);
+
+        if (ret)
+                pr_err("The watchdog timer cannot be started or reset\n");
+        return ret;
+}
+
+static int wdt_set_timeout(struct watchdog_device * dev, unsigned int new_to)
+{
+        dev->timeout = new_to;
+        return wdt_ping(dev);
+}
+
+static struct watchdog_ops wdt_ops = {
+        .owner = THIS_MODULE,
+        .start = wdt_start,
+        .stop = wdt_stop,
+        .ping = wdt_ping,
+        .set_timeout = wdt_set_timeout,
+};
+
+static struct watchdog_info wdt_info = {
+        .options = WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE,
+        .firmware_version = 0,
+        .identity = "z Watchdog",
+};
+
+static struct watchdog_device wdt_dev = {
+        .parent = NULL,
+        .info = &wdt_info,
+        .ops = &wdt_ops,
+        .bootstatus = 0,
+        .timeout = WDT_DEFAULT_TIMEOUT,
+        .min_timeout = MIN_INTERVAL,
+        .max_timeout = MAX_INTERVAL,
+};
+
+/*
+ * It makes no sense to go into suspend while the watchdog is running.
+ * Depending on the memory size, the watchdog might trigger, while we
+ * are still saving the memory.
+ * We reuse the open flag to ensure that suspend and watchdog open are
+ * exclusive operations
+ */
+static int wdt_suspend(void)
+{
+        if (test_and_set_bit(WDOG_DEV_OPEN, &wdt_dev.status)) {
+                pr_err("Linux cannot be suspended while the watchdog is in use\n");
+                return notifier_from_errno(-EBUSY);
+        }
+        if (test_bit(WDOG_ACTIVE, &wdt_dev.status)) {
+                clear_bit(WDOG_DEV_OPEN, &wdt_dev.status);
+                pr_err("Linux cannot be suspended while the watchdog is in use\n");
+                return notifier_from_errno(-EBUSY);
+        }
+        return NOTIFY_DONE;
+}
+
+static int wdt_resume(void)
+{
+        clear_bit(WDOG_DEV_OPEN, &wdt_dev.status);
+        return NOTIFY_DONE;
+}
+
+static int wdt_power_event(struct notifier_block *this, unsigned long event,
+                           void *ptr)
+{
+        switch (event) {
+        case PM_POST_HIBERNATION:
+        case PM_POST_SUSPEND:
+                return wdt_resume();
+        case PM_HIBERNATION_PREPARE:
+        case PM_SUSPEND_PREPARE:
+                return wdt_suspend();
+        default:
+                return NOTIFY_DONE;
+        }
+}
+
+static struct notifier_block wdt_power_notifier = {
+        .notifier_call = wdt_power_event,
+};
+
+static int __init diag288_init(void)
+{
+        int ret;
+        char ebc_begin[] = {
+                194, 197, 199, 201, 213
+        };
+
+        watchdog_set_nowayout(&wdt_dev, nowayout_info);
+
+        if (MACHINE_IS_VM) {
+                pr_info("The watchdog device driver detected a z/VM environment\n");
+                if (__diag288_vm(WDT_FUNC_INIT, 15,
+                                 ebc_begin, sizeof(ebc_begin)) != 0) {
+                        pr_err("The watchdog cannot be initialized\n");
+                        return -EINVAL;
+                }
+        } else if (MACHINE_IS_LPAR) {
+                pr_info("The watchdog device driver detected an LPAR environment\n");
+                if (__diag288_lpar(WDT_FUNC_INIT, 30, LPARWDT_RESTART)) {
+                        pr_err("The watchdog cannot be initialized\n");
+                        return -EINVAL;
+                }
+        } else {
+                pr_err("Linux runs in an environment that does not support the diag288 watchdog\n");
+                return -ENODEV;
+        }
+
+        if (__diag288_lpar(WDT_FUNC_CANCEL, 0, 0)) {
+                pr_err("The watchdog cannot be deactivated\n");
+                return -EINVAL;
+        }
+
+        ret = register_pm_notifier(&wdt_power_notifier);
+        if (ret)
+                return ret;
+
+        ret = watchdog_register_device(&wdt_dev);
+        if (ret)
+                unregister_pm_notifier(&wdt_power_notifier);
+
+        return ret;
+}
+
+static void __exit diag288_exit(void)
+{
+        watchdog_unregister_device(&wdt_dev);
+        unregister_pm_notifier(&wdt_power_notifier);
+}
+
+module_init(diag288_init);
+module_exit(diag288_exit);
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 6d325bda76da..5d4de88fe5b8 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -1168,7 +1168,8 @@ int gnttab_resume(void)
 
 int gnttab_suspend(void)
 {
-        gnttab_interface->unmap_frames();
+        if (!xen_feature(XENFEAT_auto_translated_physmap))
+                gnttab_interface->unmap_frames();
         return 0;
 }
 
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index b7e2c1c1ef36..be91397f4e92 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1259,11 +1259,19 @@ struct btrfs_block_group_cache {
         spinlock_t lock;
         u64 pinned;
         u64 reserved;
+        u64 delalloc_bytes;
         u64 bytes_super;
         u64 flags;
         u64 sectorsize;
         u64 cache_generation;
 
+        /*
+         * It is just used for the delayed data space allocation because
+         * only the data space allocation and the relative metadata update
+         * can be done cross the transaction.
+         */
+        struct rw_semaphore data_rwsem;
+
         /* for raid56, this is a full stripe, without parity */
         unsigned long full_stripe_len;
 
@@ -3316,7 +3324,7 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
                                    struct btrfs_key *ins);
 int btrfs_reserve_extent(struct btrfs_root *root, u64 num_bytes,
                          u64 min_alloc_size, u64 empty_size, u64 hint_byte,
-                         struct btrfs_key *ins, int is_data);
+                         struct btrfs_key *ins, int is_data, int delalloc);
 int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
                   struct extent_buffer *buf, int full_backref, int no_quota);
 int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
@@ -3330,7 +3338,8 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans,
                       u64 bytenr, u64 num_bytes, u64 parent, u64 root_objectid,
                       u64 owner, u64 offset, int no_quota);
 
-int btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len);
+int btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len,
+                               int delalloc);
 int btrfs_free_and_pin_reserved_extent(struct btrfs_root *root,
                                        u64 start, u64 len);
 void btrfs_prepare_extent_commit(struct btrfs_trans_handle *trans,
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index fafb3e53ecde..99c253918208 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -105,7 +105,8 @@ static int find_next_key(struct btrfs_path *path, int level,
 static void dump_space_info(struct btrfs_space_info *info, u64 bytes,
                             int dump_block_groups);
 static int btrfs_update_reserved_bytes(struct btrfs_block_group_cache *cache,
-                                       u64 num_bytes, int reserve);
+                                       u64 num_bytes, int reserve,
+                                       int delalloc);
 static int block_rsv_use_bytes(struct btrfs_block_rsv *block_rsv,
                                u64 num_bytes);
 int btrfs_pin_extent(struct btrfs_root *root,
@@ -3260,7 +3261,8 @@ again:
 
         spin_lock(&block_group->lock);
         if (block_group->cached != BTRFS_CACHE_FINISHED ||
-            !btrfs_test_opt(root, SPACE_CACHE)) {
+            !btrfs_test_opt(root, SPACE_CACHE) ||
+            block_group->delalloc_bytes) {
                 /*
                  * don't bother trying to write stuff out _if_
                  * a) we're not cached,
@@ -5613,6 +5615,7 @@ int btrfs_exclude_logged_extents(struct btrfs_root *log,
  * @cache:      The cache we are manipulating
  * @num_bytes:  The number of bytes in question
  * @reserve:    One of the reservation enums
+ * @delalloc:   The blocks are allocated for the delalloc write
  *
  * This is called by the allocator when it reserves space, or by somebody who is
  * freeing space that was never actually used on disk.  For example if you
@@ -5631,7 +5634,7 @@ int btrfs_exclude_logged_extents(struct btrfs_root *log,
  * succeeds.
  */
 static int btrfs_update_reserved_bytes(struct btrfs_block_group_cache *cache,
-                                       u64 num_bytes, int reserve)
+                                       u64 num_bytes, int reserve, int delalloc)
 {
         struct btrfs_space_info *space_info = cache->space_info;
         int ret = 0;
@@ -5650,12 +5653,18 @@ static int btrfs_update_reserved_bytes(struct btrfs_block_group_cache *cache,
                                                 num_bytes, 0);
                                 space_info->bytes_may_use -= num_bytes;
                         }
+
+                        if (delalloc)
+                                cache->delalloc_bytes += num_bytes;
                 }
         } else {
                 if (cache->ro)
                         space_info->bytes_readonly += num_bytes;
                 cache->reserved -= num_bytes;
                 space_info->bytes_reserved -= num_bytes;
+
+                if (delalloc)
+                        cache->delalloc_bytes -= num_bytes;
         }
         spin_unlock(&cache->lock);
         spin_unlock(&space_info->lock);
@@ -6206,7 +6215,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
                 WARN_ON(test_bit(EXTENT_BUFFER_DIRTY, &buf->bflags));
 
                 btrfs_add_free_space(cache, buf->start, buf->len);
-                btrfs_update_reserved_bytes(cache, buf->len, RESERVE_FREE);
+                btrfs_update_reserved_bytes(cache, buf->len, RESERVE_FREE, 0);
                 trace_btrfs_reserved_extent_free(root, buf->start, buf->len);
                 pin = 0;
         }
@@ -6365,6 +6374,70 @@ enum btrfs_loop_type {
         LOOP_NO_EMPTY_SIZE = 3,
 };
 
+static inline void
+btrfs_lock_block_group(struct btrfs_block_group_cache *cache,
+                       int delalloc)
+{
+        if (delalloc)
+                down_read(&cache->data_rwsem);
+}
+
+static inline void
+btrfs_grab_block_group(struct btrfs_block_group_cache *cache,
+                       int delalloc)
+{
+        btrfs_get_block_group(cache);
+        if (delalloc)
+                down_read(&cache->data_rwsem);
+}
+
+static struct btrfs_block_group_cache *
+btrfs_lock_cluster(struct btrfs_block_group_cache *block_group,
+                   struct btrfs_free_cluster *cluster,
+                   int delalloc)
+{
+        struct btrfs_block_group_cache *used_bg;
+        bool locked = false;
+again:
+        spin_lock(&cluster->refill_lock);
+        if (locked) {
+                if (used_bg == cluster->block_group)
+                        return used_bg;
+
+                up_read(&used_bg->data_rwsem);
+                btrfs_put_block_group(used_bg);
+        }
+
+        used_bg = cluster->block_group;
+        if (!used_bg)
+                return NULL;
+
+        if (used_bg == block_group)
+                return used_bg;
+
+        btrfs_get_block_group(used_bg);
+
+        if (!delalloc)
+                return used_bg;
+
+        if (down_read_trylock(&used_bg->data_rwsem))
+                return used_bg;
+
+        spin_unlock(&cluster->refill_lock);
+        down_read(&used_bg->data_rwsem);
+        locked = true;
+        goto again;
+}
+
+static inline void
+btrfs_release_block_group(struct btrfs_block_group_cache *cache,
+                         int delalloc)
+{
+        if (delalloc)
+                up_read(&cache->data_rwsem);
+        btrfs_put_block_group(cache);
+}
+
 /*
  * walks the btree of allocated extents and find a hole of a given size.
  * The key ins is changed to record the hole:
@@ -6379,7 +6452,7 @@ enum btrfs_loop_type {
 static noinline int find_free_extent(struct btrfs_root *orig_root,
                                      u64 num_bytes, u64 empty_size,
                                      u64 hint_byte, struct btrfs_key *ins,
-                                     u64 flags)
+                                     u64 flags, int delalloc)
 {
         int ret = 0;
         struct btrfs_root *root = orig_root->fs_info->extent_root;
@@ -6467,6 +6540,7 @@ static noinline int find_free_extent(struct btrfs_root *orig_root,
                                 up_read(&space_info->groups_sem);
                         } else {
                                 index = get_block_group_index(block_group);
+                                btrfs_lock_block_group(block_group, delalloc);
                                 goto have_block_group;
                         }
                 } else if (block_group) {
@@ -6481,7 +6555,7 @@ search:
                 u64 offset;
                 int cached;
 
-                btrfs_get_block_group(block_group);
+                btrfs_grab_block_group(block_group, delalloc);
                 search_start = block_group->key.objectid;
 
                 /*
@@ -6529,16 +6603,16 @@ have_block_group:
                          * the refill lock keeps out other
                          * people trying to start a new cluster
                          */
-                        spin_lock(&last_ptr->refill_lock);
-                        used_block_group = last_ptr->block_group;
-                        if (used_block_group != block_group &&
-                            (!used_block_group ||
-                             used_block_group->ro ||
-                             !block_group_bits(used_block_group, flags)))
+                        used_block_group = btrfs_lock_cluster(block_group,
+                                                              last_ptr,
+                                                              delalloc);
+                        if (!used_block_group)
                                 goto refill_cluster;
 
-                        if (used_block_group != block_group)
-                                btrfs_get_block_group(used_block_group);
+                        if (used_block_group != block_group &&
+                            (used_block_group->ro ||
+                             !block_group_bits(used_block_group, flags)))
+                                goto release_cluster;
 
                         offset = btrfs_alloc_from_cluster(used_block_group,
                                                 last_ptr,
@@ -6552,16 +6626,15 @@ have_block_group:
                                                 used_block_group,
                                                 search_start, num_bytes);
                                 if (used_block_group != block_group) {
-                                        btrfs_put_block_group(block_group);
+                                        btrfs_release_block_group(block_group,
+                                                                  delalloc);
                                         block_group = used_block_group;
                                 }
                                 goto checks;
                         }
 
                         WARN_ON(last_ptr->block_group != used_block_group);
-                        if (used_block_group != block_group)
-                                btrfs_put_block_group(used_block_group);
-refill_cluster:
+release_cluster:
                         /* If we are on LOOP_NO_EMPTY_SIZE, we can't
                          * set up a new clusters, so lets just skip it
                          * and let the allocator find whatever block
@@ -6578,8 +6651,10 @@ refill_cluster:
                          * succeeding in the unclustered
                          * allocation.  */
                         if (loop >= LOOP_NO_EMPTY_SIZE &&
-                            last_ptr->block_group != block_group) {
+                            used_block_group != block_group) {
                                 spin_unlock(&last_ptr->refill_lock);
+                                btrfs_release_block_group(used_block_group,
+                                                          delalloc);
                                 goto unclustered_alloc;
                         }
 
@@ -6589,6 +6664,10 @@ refill_cluster:
                          */
                         btrfs_return_cluster_to_free_space(NULL, last_ptr);
 
+                        if (used_block_group != block_group)
+                                btrfs_release_block_group(used_block_group,
+                                                          delalloc);
+refill_cluster:
                         if (loop >= LOOP_NO_EMPTY_SIZE) {
                                 spin_unlock(&last_ptr->refill_lock);
                                 goto unclustered_alloc;
@@ -6696,7 +6775,7 @@ checks:
                 BUG_ON(offset > search_start);
 
                 ret = btrfs_update_reserved_bytes(block_group, num_bytes,
-                                                  alloc_type);
+                                                  alloc_type, delalloc);
                 if (ret == -EAGAIN) {
                         btrfs_add_free_space(block_group, offset, num_bytes);
                         goto loop;
@@ -6708,13 +6787,13 @@ checks:
 
                 trace_btrfs_reserve_extent(orig_root, block_group,
                                            search_start, num_bytes);
-                btrfs_put_block_group(block_group);
+                btrfs_release_block_group(block_group, delalloc);
                 break;
 loop:
                 failed_cluster_refill = false;
                 failed_alloc = false;
                 BUG_ON(index != get_block_group_index(block_group));
-                btrfs_put_block_group(block_group);
+                btrfs_release_block_group(block_group, delalloc);
         }
         up_read(&space_info->groups_sem);
 
@@ -6827,7 +6906,7 @@ again:
 int btrfs_reserve_extent(struct btrfs_root *root,
                          u64 num_bytes, u64 min_alloc_size,
                          u64 empty_size, u64 hint_byte,
-                         struct btrfs_key *ins, int is_data)
+                         struct btrfs_key *ins, int is_data, int delalloc)
 {
         bool final_tried = false;
         u64 flags;
@@ -6837,7 +6916,7 @@ int btrfs_reserve_extent(struct btrfs_root *root,
 again:
         WARN_ON(num_bytes < root->sectorsize);
         ret = find_free_extent(root, num_bytes, empty_size, hint_byte, ins,
-                               flags);
+                               flags, delalloc);
 
         if (ret == -ENOSPC) {
                 if (!final_tried && ins->offset) {
@@ -6862,7 +6941,8 @@ again:
 }
 
 static int __btrfs_free_reserved_extent(struct btrfs_root *root,
-                                        u64 start, u64 len, int pin)
+                                        u64 start, u64 len,
+                                        int pin, int delalloc)
 {
         struct btrfs_block_group_cache *cache;
         int ret = 0;
@@ -6881,7 +6961,7 @@ static int __btrfs_free_reserved_extent(struct btrfs_root *root,
                 pin_down_extent(root, cache, start, len, 1);
         else {
                 btrfs_add_free_space(cache, start, len);
-                btrfs_update_reserved_bytes(cache, len, RESERVE_FREE);
+                btrfs_update_reserved_bytes(cache, len, RESERVE_FREE, delalloc);
         }
         btrfs_put_block_group(cache);
 
@@ -6891,15 +6971,15 @@ static int __btrfs_free_reserved_extent(struct btrfs_root *root,
 }
 
 int btrfs_free_reserved_extent(struct btrfs_root *root,
-                                        u64 start, u64 len)
+                               u64 start, u64 len, int delalloc)
 {
-        return __btrfs_free_reserved_extent(root, start, len, 0);
+        return __btrfs_free_reserved_extent(root, start, len, 0, delalloc);
 }
 
 int btrfs_free_and_pin_reserved_extent(struct btrfs_root *root,
                                        u64 start, u64 len)
 {
-        return __btrfs_free_reserved_extent(root, start, len, 1);
+        return __btrfs_free_reserved_extent(root, start, len, 1, 0);
 }
 
 static int alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
@@ -7114,7 +7194,7 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
                 return -EINVAL;
 
         ret = btrfs_update_reserved_bytes(block_group, ins->offset,
-                                          RESERVE_ALLOC_NO_ACCOUNT);
+                                          RESERVE_ALLOC_NO_ACCOUNT, 0);
         BUG_ON(ret); /* logic error */
         ret = alloc_reserved_file_extent(trans, root, 0, root_objectid,
                                          0, owner, offset, ins, 1);
@@ -7256,7 +7336,7 @@ struct extent_buffer *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
                 return ERR_CAST(block_rsv);
 
         ret = btrfs_reserve_extent(root, blocksize, blocksize,
-                                   empty_size, hint, &ins, 0);
+                                   empty_size, hint, &ins, 0, 0);
         if (ret) {
                 unuse_block_rsv(root->fs_info, block_rsv, blocksize);
                 return ERR_PTR(ret);
@@ -8659,6 +8739,7 @@ btrfs_create_block_group_cache(struct btrfs_root *root, u64 start, u64 size)
                                                start);
         atomic_set(&cache->count, 1);
         spin_lock_init(&cache->lock);
+        init_rwsem(&cache->data_rwsem);
         INIT_LIST_HEAD(&cache->list);
         INIT_LIST_HEAD(&cache->cluster_list);
         INIT_LIST_HEAD(&cache->new_bg_list);
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 15ce5f2a2b62..ccc264e7bde1 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -158,7 +158,6 @@ struct extent_buffer {
          * to unlock
          */
         wait_queue_head_t read_lock_wq;
-        wait_queue_head_t lock_wq;
         struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
 #ifdef CONFIG_BTRFS_DEBUG
         struct list_head leak_list;
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 1874aee69c86..225302b39afb 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -75,6 +75,8 @@ void free_extent_map(struct extent_map *em)
         if (atomic_dec_and_test(&em->refs)) {
                 WARN_ON(extent_map_in_tree(em));
                 WARN_ON(!list_empty(&em->list));
+                if (test_bit(EXTENT_FLAG_FS_MAPPING, &em->flags))
+                        kfree(em->bdev);
                 kmem_cache_free(extent_map_cache, em);
         }
 }
diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index e7fd8a56a140..b2991fd8583e 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -15,6 +15,7 @@
 #define EXTENT_FLAG_PREALLOC 3 /* pre-allocated extent */
 #define EXTENT_FLAG_LOGGING 4 /* Logging this extent */
 #define EXTENT_FLAG_FILLING 5 /* Filling in a preallocated extent */
+#define EXTENT_FLAG_FS_MAPPING 6 /* filesystem extent mapping type */
 
 struct extent_map {
         struct rb_node rb_node;
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 372b05ff1943..2b0a627cb5f9 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -274,18 +274,32 @@ struct io_ctl {
 };
 
 static int io_ctl_init(struct io_ctl *io_ctl, struct inode *inode,
-                       struct btrfs_root *root)
+                       struct btrfs_root *root, int write)
 {
+        int num_pages;
+        int check_crcs = 0;
+
+        num_pages = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>
+                    PAGE_CACHE_SHIFT;
+
+        if (btrfs_ino(inode) != BTRFS_FREE_INO_OBJECTID)
+                check_crcs = 1;
+
+        /* Make sure we can fit our crcs into the first page */
+        if (write && check_crcs &&
+            (num_pages * sizeof(u32)) >= PAGE_CACHE_SIZE)
+                return -ENOSPC;
+
         memset(io_ctl, 0, sizeof(struct io_ctl));
-        io_ctl->num_pages = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>
-                PAGE_CACHE_SHIFT;
-        io_ctl->pages = kzalloc(sizeof(struct page *) * io_ctl->num_pages,
-                                GFP_NOFS);
+
+        io_ctl->pages = kzalloc(sizeof(struct page *) * num_pages, GFP_NOFS);
         if (!io_ctl->pages)
                 return -ENOMEM;
+
+        io_ctl->num_pages = num_pages;
         io_ctl->root = root;
-        if (btrfs_ino(inode) != BTRFS_FREE_INO_OBJECTID)
-                io_ctl->check_crcs = 1;
+        io_ctl->check_crcs = check_crcs;
+
         return 0;
 }
 
@@ -666,6 +680,13 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
         generation = btrfs_free_space_generation(leaf, header);
         btrfs_release_path(path);
 
+        if (!BTRFS_I(inode)->generation) {
+                btrfs_info(root->fs_info,
+                           "The free space cache file (%llu) is invalid. skip it\n",
+                           offset);
+                return 0;
+        }
+
         if (BTRFS_I(inode)->generation != generation) {
                 btrfs_err(root->fs_info,
                         "free space inode generation (%llu) "
@@ -677,7 +698,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
         if (!num_entries)
                 return 0;
 
-        ret = io_ctl_init(&io_ctl, inode, root);
+        ret = io_ctl_init(&io_ctl, inode, root, 0);
         if (ret)
                 return ret;
 
@@ -957,19 +978,18 @@ fail:
 }
 
 static noinline_for_stack int
-add_ioctl_entries(struct btrfs_root *root,
-                  struct inode *inode,
-                  struct btrfs_block_group_cache *block_group,
-                  struct io_ctl *io_ctl,
-                  struct extent_state **cached_state,
-                  struct list_head *bitmap_list,
-                  int *entries)
+write_pinned_extent_entries(struct btrfs_root *root,
+                            struct btrfs_block_group_cache *block_group,
+                            struct io_ctl *io_ctl,
+                            int *entries)
 {
         u64 start, extent_start, extent_end, len;
-        struct list_head *pos, *n;
         struct extent_io_tree *unpin = NULL;
         int ret;
 
+        if (!block_group)
+                return 0;
+
         /*
          * We want to add any pinned extents to our free space cache
          * so we don't leak the space
@@ -979,23 +999,19 @@ add_ioctl_entries(struct btrfs_root *root,
          */
         unpin = root->fs_info->pinned_extents;
 
-        if (block_group)
-                start = block_group->key.objectid;
+        start = block_group->key.objectid;
 
-        while (block_group && (start < block_group->key.objectid +
-                               block_group->key.offset)) {
+        while (start < block_group->key.objectid + block_group->key.offset) {
                 ret = find_first_extent_bit(unpin, start,
                                             &extent_start, &extent_end,
                                             EXTENT_DIRTY, NULL);
-                if (ret) {
-                        ret = 0;
-                        break;
-                }
+                if (ret)
+                        return 0;
 
                 /* This pinned extent is out of our range */
                 if (extent_start >= block_group->key.objectid +
                     block_group->key.offset)
-                        break;
+                        return 0;
 
                 extent_start = max(extent_start, start);
                 extent_end = min(block_group->key.objectid +
@@ -1005,11 +1021,20 @@ add_ioctl_entries(struct btrfs_root *root,
                 *entries += 1;
                 ret = io_ctl_add_entry(io_ctl, extent_start, len, NULL);
                 if (ret)
-                        goto out_nospc;
+                        return -ENOSPC;
 
                 start = extent_end;
         }
 
+        return 0;
+}
+
+static noinline_for_stack int
+write_bitmap_entries(struct io_ctl *io_ctl, struct list_head *bitmap_list)
+{
+        struct list_head *pos, *n;
+        int ret;
+
         /* Write out the bitmaps */
         list_for_each_safe(pos, n, bitmap_list) {
                 struct btrfs_free_space *entry =
@@ -1017,36 +1042,24 @@ add_ioctl_entries(struct btrfs_root *root,
 
                 ret = io_ctl_add_bitmap(io_ctl, entry->bitmap);
                 if (ret)
-                        goto out_nospc;
+                        return -ENOSPC;
                 list_del_init(&entry->list);
         }
 
-        /* Zero out the rest of the pages just to make sure */
-        io_ctl_zero_remaining_pages(io_ctl);
-
-        ret = btrfs_dirty_pages(root, inode, io_ctl->pages, io_ctl->num_pages,
-                                0, i_size_read(inode), cached_state);
-        io_ctl_drop_pages(io_ctl);
-        unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0,
-                             i_size_read(inode) - 1, cached_state, GFP_NOFS);
+        return 0;
+}
 
-        if (ret)
-                goto fail;
+static int flush_dirty_cache(struct inode *inode)
+{
+        int ret;
 
         ret = btrfs_wait_ordered_range(inode, 0, (u64)-1);
-        if (ret) {
+        if (ret)
                 clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, inode->i_size - 1,
                                  EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL,
                                  GFP_NOFS);
-                goto fail;
-        }
-        return 0;
 
-fail:
-        return -1;
-
-out_nospc:
-        return -ENOSPC;
+        return ret;
 }
 
 static void noinline_for_stack
@@ -1056,6 +1069,7 @@ cleanup_write_cache_enospc(struct inode *inode,
                            struct list_head *bitmap_list)
 {
         struct list_head *pos, *n;
+
         list_for_each_safe(pos, n, bitmap_list) {
                 struct btrfs_free_space *entry =
                         list_entry(pos, struct btrfs_free_space, list);
@@ -1088,64 +1102,104 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode,
 {
         struct extent_state *cached_state = NULL;
         struct io_ctl io_ctl;
-        struct list_head bitmap_list;
+        LIST_HEAD(bitmap_list);
         int entries = 0;
         int bitmaps = 0;
         int ret;
-        int err = -1;
-
-        INIT_LIST_HEAD(&bitmap_list);
 
         if (!i_size_read(inode))
                 return -1;
 
-        ret = io_ctl_init(&io_ctl, inode, root);
+        ret = io_ctl_init(&io_ctl, inode, root, 1);
         if (ret)
                 return -1;
 
+        if (block_group && (block_group->flags & BTRFS_BLOCK_GROUP_DATA)) {
+                down_write(&block_group->data_rwsem);
+                spin_lock(&block_group->lock);
+                if (block_group->delalloc_bytes) {
+                        block_group->disk_cache_state = BTRFS_DC_WRITTEN;
+                        spin_unlock(&block_group->lock);
+                        up_write(&block_group->data_rwsem);
+                        BTRFS_I(inode)->generation = 0;
+                        ret = 0;
+                        goto out;
+                }
+                spin_unlock(&block_group->lock);
+        }
+
         /* Lock all pages first so we can lock the extent safely. */
         io_ctl_prepare_pages(&io_ctl, inode, 0);
 
         lock_extent_bits(&BTRFS_I(inode)->io_tree, 0, i_size_read(inode) - 1,
                          0, &cached_state);
 
-
-        /* Make sure we can fit our crcs into the first page */
-        if (io_ctl.check_crcs &&
-            (io_ctl.num_pages * sizeof(u32)) >= PAGE_CACHE_SIZE)
-                goto out_nospc;
-
         io_ctl_set_generation(&io_ctl, trans->transid);
 
+        /* Write out the extent entries in the free space cache */
         ret = write_cache_extent_entries(&io_ctl, ctl,
                                          block_group, &entries, &bitmaps,
                                          &bitmap_list);
         if (ret)
                 goto out_nospc;
 
-        ret = add_ioctl_entries(root, inode, block_group, &io_ctl,
-                                &cached_state, &bitmap_list, &entries);
+        /*
+         * Some spaces that are freed in the current transaction are pinned,
+         * they will be added into free space cache after the transaction is
+         * committed, we shouldn't lose them.
+         */
+        ret = write_pinned_extent_entries(root, block_group, &io_ctl, &entries);
+        if (ret)
+                goto out_nospc;
 
-        if (ret == -ENOSPC)
+        /* At last, we write out all the bitmaps. */
+        ret = write_bitmap_entries(&io_ctl, &bitmap_list);
+        if (ret)
                 goto out_nospc;
-        else if (ret)
+
+        /* Zero out the rest of the pages just to make sure */
+        io_ctl_zero_remaining_pages(&io_ctl);
+
+        /* Everything is written out, now we dirty the pages in the file. */
+        ret = btrfs_dirty_pages(root, inode, io_ctl.pages, io_ctl.num_pages,
+                                0, i_size_read(inode), &cached_state);
+        if (ret)
+                goto out_nospc;
+
+        if (block_group && (block_group->flags & BTRFS_BLOCK_GROUP_DATA))
+                up_write(&block_group->data_rwsem);
+        /*
+         * Release the pages and unlock the extent, we will flush
+         * them out later
+         */
+        io_ctl_drop_pages(&io_ctl);
+
+        unlock_extent_cached(&BTRFS_I(inode)->io_tree, 0,
+                             i_size_read(inode) - 1, &cached_state, GFP_NOFS);
+
+        /* Flush the dirty pages in the cache file. */
+        ret = flush_dirty_cache(inode);
+        if (ret)
                 goto out;
 
-        err = update_cache_item(trans, root, inode, path, offset,
+        /* Update the cache item to tell everyone this cache file is valid. */
+        ret = update_cache_item(trans, root, inode, path, offset,
                                 entries, bitmaps);
-
 out:
         io_ctl_free(&io_ctl);
-        if (err) {
+        if (ret) {
                 invalidate_inode_pages2(inode->i_mapping);
                 BTRFS_I(inode)->generation = 0;
         }
         btrfs_update_inode(trans, root, inode);
-        return err;
+        return ret;
 
 out_nospc:
-
         cleanup_write_cache_enospc(inode, &io_ctl, &cached_state, &bitmap_list);
+
+        if (block_group && (block_group->flags & BTRFS_BLOCK_GROUP_DATA))
+                up_write(&block_group->data_rwsem);
+
         goto out;
 }
 
@@ -1165,6 +1219,12 @@ int btrfs_write_out_cache(struct btrfs_root *root,
                 spin_unlock(&block_group->lock);
                 return 0;
         }
+
+        if (block_group->delalloc_bytes) {
+                block_group->disk_cache_state = BTRFS_DC_WRITTEN;
+                spin_unlock(&block_group->lock);
+                return 0;
+        }
         spin_unlock(&block_group->lock);
 
         inode = lookup_free_space_inode(root, block_group, path);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 8925f66a1411..3668048e16f8 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -693,7 +693,7 @@ retry:
                 ret = btrfs_reserve_extent(root,
                                            async_extent->compressed_size,
                                            async_extent->compressed_size,
-                                           0, alloc_hint, &ins, 1);
+                                           0, alloc_hint, &ins, 1, 1);
                 if (ret) {
                         int i;
 
@@ -794,7 +794,7 @@ retry:
 out:
         return ret;
 out_free_reserve:
-        btrfs_free_reserved_extent(root, ins.objectid, ins.offset);
+        btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
 out_free:
         extent_clear_unlock_delalloc(inode, async_extent->start,
                                      async_extent->start +
@@ -917,7 +917,7 @@ static noinline int cow_file_range(struct inode *inode,
                 cur_alloc_size = disk_num_bytes;
                 ret = btrfs_reserve_extent(root, cur_alloc_size,
                                            root->sectorsize, 0, alloc_hint,
-                                           &ins, 1);
+                                           &ins, 1, 1);
                 if (ret < 0)
                         goto out_unlock;
 
@@ -995,7 +995,7 @@ out:
         return ret;
 
 out_reserve:
-        btrfs_free_reserved_extent(root, ins.objectid, ins.offset);
+        btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
 out_unlock:
         extent_clear_unlock_delalloc(inode, start, end, locked_page,
                                      EXTENT_LOCKED | EXTENT_DO_ACCOUNTING |
@@ -2599,6 +2599,21 @@ out_kfree:
         return NULL;
 }
 
+static void btrfs_release_delalloc_bytes(struct btrfs_root *root,
+                                         u64 start, u64 len)
+{
+        struct btrfs_block_group_cache *cache;
+
+        cache = btrfs_lookup_block_group(root->fs_info, start);
+        ASSERT(cache);
+
+        spin_lock(&cache->lock);
+        cache->delalloc_bytes -= len;
+        spin_unlock(&cache->lock);
+
+        btrfs_put_block_group(cache);
+}
+
 /* as ordered data IO finishes, this gets called so we can finish
  * an ordered extent if the range of bytes in the file it covers are
  * fully written.
@@ -2698,6 +2713,10 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
                                                 logical_len, logical_len,
                                                 compress_type, 0, 0,
                                                 BTRFS_FILE_EXTENT_REG);
+                if (!ret)
+                        btrfs_release_delalloc_bytes(root,
+                                                     ordered_extent->start,
+                                                     ordered_extent->disk_len);
         }
         unpin_extent_cache(&BTRFS_I(inode)->extent_tree,
                            ordered_extent->file_offset, ordered_extent->len,
@@ -2750,7 +2769,7 @@ out:
                     !test_bit(BTRFS_ORDERED_NOCOW, &ordered_extent->flags) &&
                     !test_bit(BTRFS_ORDERED_PREALLOC, &ordered_extent->flags))
                         btrfs_free_reserved_extent(root, ordered_extent->start,
-                                                   ordered_extent->disk_len);
+                                                   ordered_extent->disk_len, 1);
         }
 
 
@@ -6535,21 +6554,21 @@ static struct extent_map *btrfs_new_extent_direct(struct inode *inode,
 
         alloc_hint = get_extent_allocation_hint(inode, start, len);
         ret = btrfs_reserve_extent(root, len, root->sectorsize, 0,
-                                   alloc_hint, &ins, 1);
+                                   alloc_hint, &ins, 1, 1);
         if (ret)
                 return ERR_PTR(ret);
 
         em = create_pinned_em(inode, start, ins.offset, start, ins.objectid,
                               ins.offset, ins.offset, ins.offset, 0);
         if (IS_ERR(em)) {
-                btrfs_free_reserved_extent(root, ins.objectid, ins.offset);
+                btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
                 return em;
         }
 
         ret = btrfs_add_ordered_extent_dio(inode, start, ins.objectid,
                                            ins.offset, ins.offset, 0);
         if (ret) {
-                btrfs_free_reserved_extent(root, ins.objectid, ins.offset);
+                btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
                 free_extent_map(em);
                 return ERR_PTR(ret);
         }
@@ -7437,7 +7456,7 @@ free_ordered:
                 if (!test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags) &&
                     !test_bit(BTRFS_ORDERED_NOCOW, &ordered->flags))
                         btrfs_free_reserved_extent(root, ordered->start,
-                                                   ordered->disk_len);
+                                                   ordered->disk_len, 1);
                 btrfs_put_ordered_extent(ordered);
                 btrfs_put_ordered_extent(ordered);
         }
@@ -8808,7 +8827,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
                 cur_bytes = min(num_bytes, 256ULL * 1024 * 1024);
                 cur_bytes = max(cur_bytes, min_size);
                 ret = btrfs_reserve_extent(root, cur_bytes, min_size, 0,
-                                           *alloc_hint, &ins, 1);
+                                           *alloc_hint, &ins, 1, 0);
                 if (ret) {
                         if (own_trans)
                                 btrfs_end_transaction(trans, root);
@@ -8822,7 +8841,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
                                                   BTRFS_FILE_EXTENT_PREALLOC);
                 if (ret) {
                         btrfs_free_reserved_extent(root, ins.objectid,
-                                                   ins.offset);
+                                                   ins.offset, 0);
                         btrfs_abort_transaction(trans, root, ret);
                         if (own_trans)
                                 btrfs_end_transaction(trans, root);
diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c
index 01277b8f2373..5665d2149249 100644
--- a/fs/btrfs/locking.c
+++ b/fs/btrfs/locking.c
@@ -33,14 +33,14 @@ static void btrfs_assert_tree_read_locked(struct extent_buffer *eb);
  */
 void btrfs_set_lock_blocking_rw(struct extent_buffer *eb, int rw)
 {
-        if (eb->lock_nested) {
-                read_lock(&eb->lock);
-                if (eb->lock_nested && current->pid == eb->lock_owner) {
-                        read_unlock(&eb->lock);
-                        return;
-                }
-                read_unlock(&eb->lock);
-        }
+        /*
+         * no lock is required.  The lock owner may change if
+         * we have a read lock, but it won't change to or away
+         * from us.  If we have the write lock, we are the owner
+         * and it'll never change.
+         */
+        if (eb->lock_nested && current->pid == eb->lock_owner)
+                return;
         if (rw == BTRFS_WRITE_LOCK) {
                 if (atomic_read(&eb->blocking_writers) == 0) {
                         WARN_ON(atomic_read(&eb->spinning_writers) != 1);
@@ -65,14 +65,15 @@ void btrfs_set_lock_blocking_rw(struct extent_buffer *eb, int rw)
  */
 void btrfs_clear_lock_blocking_rw(struct extent_buffer *eb, int rw)
 {
-        if (eb->lock_nested) {
-                read_lock(&eb->lock);
-                if (eb->lock_nested && current->pid == eb->lock_owner) {
-                        read_unlock(&eb->lock);
-                        return;
-                }
-                read_unlock(&eb->lock);
-        }
+        /*
+         * no lock is required.  The lock owner may change if
+         * we have a read lock, but it won't change to or away
+         * from us.  If we have the write lock, we are the owner
+         * and it'll never change.
+         */
+        if (eb->lock_nested && current->pid == eb->lock_owner)
+                return;
+
         if (rw == BTRFS_WRITE_LOCK_BLOCKING) {
                 BUG_ON(atomic_read(&eb->blocking_writers) != 1);
                 write_lock(&eb->lock);
@@ -99,6 +100,9 @@ void btrfs_clear_lock_blocking_rw(struct extent_buffer *eb, int rw)
 void btrfs_tree_read_lock(struct extent_buffer *eb)
 {
 again:
+        BUG_ON(!atomic_read(&eb->blocking_writers) &&
+               current->pid == eb->lock_owner);
+
         read_lock(&eb->lock);
         if (atomic_read(&eb->blocking_writers) &&
             current->pid == eb->lock_owner) {
@@ -132,7 +136,9 @@ int btrfs_try_tree_read_lock(struct extent_buffer *eb)
         if (atomic_read(&eb->blocking_writers))
                 return 0;
 
-        read_lock(&eb->lock);
+        if (!read_trylock(&eb->lock))
+                return 0;
+
         if (atomic_read(&eb->blocking_writers)) {
                 read_unlock(&eb->lock);
                 return 0;
@@ -151,7 +157,10 @@ int btrfs_try_tree_write_lock(struct extent_buffer *eb)
         if (atomic_read(&eb->blocking_writers) ||
             atomic_read(&eb->blocking_readers))
                 return 0;
-        write_lock(&eb->lock);
+
+        if (!write_trylock(&eb->lock))
+                return 0;
+
         if (atomic_read(&eb->blocking_writers) ||
             atomic_read(&eb->blocking_readers)) {
                 write_unlock(&eb->lock);
@@ -168,14 +177,15 @@ int btrfs_try_tree_write_lock(struct extent_buffer *eb)
  */
 void btrfs_tree_read_unlock(struct extent_buffer *eb)
 {
-        if (eb->lock_nested) {
-                read_lock(&eb->lock);
-                if (eb->lock_nested && current->pid == eb->lock_owner) {
-                        eb->lock_nested = 0;
-                        read_unlock(&eb->lock);
-                        return;
-                }
-                read_unlock(&eb->lock);
+        /*
+         * if we're nested, we have the write lock.  No new locking
+         * is needed as long as we are the lock owner.
+         * The write unlock will do a barrier for us, and the lock_nested
+         * field only matters to the lock owner.
+         */
+        if (eb->lock_nested && current->pid == eb->lock_owner) {
+                eb->lock_nested = 0;
+                return;
         }
         btrfs_assert_tree_read_locked(eb);
         WARN_ON(atomic_read(&eb->spinning_readers) == 0);
@@ -189,14 +199,15 @@ void btrfs_tree_read_unlock(struct extent_buffer *eb)
  */
 void btrfs_tree_read_unlock_blocking(struct extent_buffer *eb)
 {
-        if (eb->lock_nested) {
-                read_lock(&eb->lock);
-                if (eb->lock_nested && current->pid == eb->lock_owner) {
-                        eb->lock_nested = 0;
-                        read_unlock(&eb->lock);
-                        return;
-                }
-                read_unlock(&eb->lock);
+        /*
+         * if we're nested, we have the write lock.  No new locking
+         * is needed as long as we are the lock owner.
+         * The write unlock will do a barrier for us, and the lock_nested
+         * field only matters to the lock owner.
+         */
+        if (eb->lock_nested && current->pid == eb->lock_owner) {
+                eb->lock_nested = 0;
+                return;
         }
         btrfs_assert_tree_read_locked(eb);
         WARN_ON(atomic_read(&eb->blocking_readers) == 0);
@@ -244,6 +255,7 @@ void btrfs_tree_unlock(struct extent_buffer *eb)
         BUG_ON(blockers > 1);
 
         btrfs_assert_tree_locked(eb);
+        eb->lock_owner = 0;
         atomic_dec(&eb->write_locks);
 
         if (blockers) {
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index ac80188eec88..b6d198f5181e 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2725,11 +2725,8 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
                 dev_extent = btrfs_item_ptr(l, slot, struct btrfs_dev_extent);
                 length = btrfs_dev_extent_length(l, dev_extent);
 
-                if (found_key.offset + length <= start) {
-                        key.offset = found_key.offset + length;
-                        btrfs_release_path(path);
-                        continue;
-                }
+                if (found_key.offset + length <= start)
+                        goto skip;
 
                 chunk_tree = btrfs_dev_extent_chunk_tree(l, dev_extent);
                 chunk_objectid = btrfs_dev_extent_chunk_objectid(l, dev_extent);
@@ -2740,10 +2737,12 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
                  * the chunk from going away while we scrub it
                  */
                 cache = btrfs_lookup_block_group(fs_info, chunk_offset);
-                if (!cache) {
-                        ret = -ENOENT;
-                        break;
-                }
+
+                /* some chunks are removed but not committed to disk yet,
+                 * continue scrubbing */
+                if (!cache)
+                        goto skip;
+
                 dev_replace->cursor_right = found_key.offset + length;
                 dev_replace->cursor_left = found_key.offset;
                 dev_replace->item_needs_writeback = 1;
@@ -2802,7 +2801,7 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
 
                 dev_replace->cursor_left = dev_replace->cursor_right;
                 dev_replace->item_needs_writeback = 1;
-
+skip:
                 key.offset = found_key.offset + length;
                 btrfs_release_path(path);
         }
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index ffeed6d6326f..c83b24251e53 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2543,9 +2543,6 @@ static int btrfs_relocate_chunk(struct btrfs_root *root,
         remove_extent_mapping(em_tree, em);
         write_unlock(&em_tree->lock);
 
-        kfree(map);
-        em->bdev = NULL;
-
         /* once for the tree */
         free_extent_map(em);
         /* once for us */
@@ -4301,9 +4298,11 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
 
         em = alloc_extent_map();
         if (!em) {
+                kfree(map);
                 ret = -ENOMEM;
                 goto error;
         }
+        set_bit(EXTENT_FLAG_FS_MAPPING, &em->flags);
         em->bdev = (struct block_device *)map;
         em->start = start;
         em->len = num_bytes;
@@ -4346,7 +4345,6 @@ error_del_extent:
         /* One for the tree reference */
         free_extent_map(em);
 error:
-        kfree(map);
         kfree(devices_info);
         return ret;
 }
@@ -4558,7 +4556,6 @@ void btrfs_mapping_tree_free(struct btrfs_mapping_tree *tree)
                 write_unlock(&tree->map_tree.lock);
                 if (!em)
                         break;
-                kfree(em->bdev);
                 /* once for us */
                 free_extent_map(em);
                 /* once for the tree */
@@ -5362,6 +5359,15 @@ int btrfs_rmap_block(struct btrfs_mapping_tree *map_tree,
         return 0;
 }
 
+static inline void btrfs_end_bbio(struct btrfs_bio *bbio, struct bio *bio, int err)
+{
+        if (likely(bbio->flags & BTRFS_BIO_ORIG_BIO_SUBMITTED))
+                bio_endio_nodec(bio, err);
+        else
+                bio_endio(bio, err);
+        kfree(bbio);
+}
+
 static void btrfs_end_bio(struct bio *bio, int err)
 {
         struct btrfs_bio *bbio = bio->bi_private;
@@ -5402,12 +5408,6 @@ static void btrfs_end_bio(struct bio *bio, int err)
                         bio = bbio->orig_bio;
                 }
 
-                /*
-                 * We have original bio now. So increment bi_remaining to
-                 * account for it in endio
-                 */
-                atomic_inc(&bio->bi_remaining);
-
                 bio->bi_private = bbio->private;
                 bio->bi_end_io = bbio->end_io;
                 btrfs_io_bio(bio)->mirror_num = bbio->mirror_num;
@@ -5424,9 +5424,8 @@ static void btrfs_end_bio(struct bio *bio, int err)
                         set_bit(BIO_UPTODATE, &bio->bi_flags);
                         err = 0;
                 }
-                kfree(bbio);
 
-                bio_endio(bio, err);
+                btrfs_end_bbio(bbio, bio, err);
         } else if (!is_orig_bio) {
                 bio_put(bio);
         }
@@ -5589,12 +5588,15 @@ static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
 {
         atomic_inc(&bbio->error);
         if (atomic_dec_and_test(&bbio->stripes_pending)) {
+                /* Shoud be the original bio. */
+                WARN_ON(bio != bbio->orig_bio);
+
                 bio->bi_private = bbio->private;
                 bio->bi_end_io = bbio->end_io;
                 btrfs_io_bio(bio)->mirror_num = bbio->mirror_num;
                 bio->bi_iter.bi_sector = logical >> 9;
-                kfree(bbio);
-                bio_endio(bio, -EIO);
+
+                btrfs_end_bbio(bbio, bio, -EIO);
         }
 }
 
@@ -5681,6 +5683,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
                         BUG_ON(!bio); /* -ENOMEM */
                 } else {
                         bio = first_bio;
+                        bbio->flags |= BTRFS_BIO_ORIG_BIO_SUBMITTED;
                 }
 
                 submit_stripe_bio(root, bbio, bio,
@@ -5822,6 +5825,7 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key,
                 return -ENOMEM;
         }
 
+        set_bit(EXTENT_FLAG_FS_MAPPING, &em->flags);
         em->bdev = (struct block_device *)map;
         em->start = logical;
         em->len = length;
@@ -5846,7 +5850,6 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key,
                 map->stripes[i].dev = btrfs_find_device(root->fs_info, devid,
                                                         uuid, NULL);
                 if (!map->stripes[i].dev && !btrfs_test_opt(root, DEGRADED)) {
-                        kfree(map);
                         free_extent_map(em);
                         return -EIO;
                 }
@@ -5854,7 +5857,6 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key,
                         map->stripes[i].dev =
                                 add_missing_dev(root, devid, uuid);
                         if (!map->stripes[i].dev) {
-                                kfree(map);
                                 free_extent_map(em);
                                 return -EIO;
                         }
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 1a15bbeb65e2..2aaa00c47816 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -190,11 +190,14 @@ struct btrfs_bio_stripe {
 struct btrfs_bio;
 typedef void (btrfs_bio_end_io_t) (struct btrfs_bio *bio, int err);
 
+#define BTRFS_BIO_ORIG_BIO_SUBMITTED    0x1
+
 struct btrfs_bio {
         atomic_t stripes_pending;
         struct btrfs_fs_info *fs_info;
         bio_end_io_t *end_io;
         struct bio *orig_bio;
+        unsigned long flags;
         void *private;
         atomic_t error;
         int max_errors;
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index b73e0621ce9e..b10b48c2a7af 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -910,7 +910,7 @@ static const struct file_operations eventpoll_fops = {
 void eventpoll_release_file(struct file *file)
 {
         struct eventpoll *ep;
-        struct epitem *epi;
+        struct epitem *epi, *next;
 
         /*
          * We don't want to get "file->f_lock" because it is not
@@ -926,7 +926,7 @@ void eventpoll_release_file(struct file *file)
          * Besides, ep_remove() acquires the lock, so we can't hold it here.
          */
         mutex_lock(&epmutex);
-        list_for_each_entry_rcu(epi, &file->f_ep_links, fllink) {
+        list_for_each_entry_safe(epi, next, &file->f_ep_links, fllink) {
                 ep = epi->ep;
                 mutex_lock_nested(&ep->mtx, 0);
                 ep_remove(ep, epi);
diff --git a/fs/locks.c b/fs/locks.c
index da57c9b7e844..717fbc404e6b 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -431,7 +431,7 @@ static int lease_init(struct file *filp, long type, struct file_lock *fl)
         if (assign_type(fl, type) != 0)
                 return -EINVAL;
 
-        fl->fl_owner = (fl_owner_t)filp;
+        fl->fl_owner = (fl_owner_t)current->files;
         fl->fl_pid = current->tgid;
 
         fl->fl_file = filp;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index c0d45cec9958..2204e1fe5725 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -41,6 +41,7 @@
 #include <linux/ratelimit.h>
 #include <linux/sunrpc/svcauth_gss.h>
 #include <linux/sunrpc/addr.h>
+#include <linux/hash.h>
 #include "xdr4.h"
 #include "xdr4cb.h"
 #include "vfs.h"
@@ -364,6 +365,79 @@ static struct nfs4_ol_stateid * nfs4_alloc_stateid(struct nfs4_client *clp)
         return openlockstateid(nfs4_alloc_stid(clp, stateid_slab));
 }
 
+/*
+ * When we recall a delegation, we should be careful not to hand it
+ * out again straight away.
+ * To ensure this we keep a pair of bloom filters ('new' and 'old')
+ * in which the filehandles of recalled delegations are "stored".
+ * If a filehandle appear in either filter, a delegation is blocked.
+ * When a delegation is recalled, the filehandle is stored in the "new"
+ * filter.
+ * Every 30 seconds we swap the filters and clear the "new" one,
+ * unless both are empty of course.
+ *
+ * Each filter is 256 bits.  We hash the filehandle to 32bit and use the
+ * low 3 bytes as hash-table indices.
+ *
+ * 'state_lock', which is always held when block_delegations() is called,
+ * is used to manage concurrent access.  Testing does not need the lock
+ * except when swapping the two filters.
+ */
+static struct bloom_pair {
+        int     entries, old_entries;
+        time_t  swap_time;
+        int     new; /* index into 'set' */
+        DECLARE_BITMAP(set[2], 256);
+} blocked_delegations;
+
+static int delegation_blocked(struct knfsd_fh *fh)
+{
+        u32 hash;
+        struct bloom_pair *bd = &blocked_delegations;
+
+        if (bd->entries == 0)
+                return 0;
+        if (seconds_since_boot() - bd->swap_time > 30) {
+                spin_lock(&state_lock);
+                if (seconds_since_boot() - bd->swap_time > 30) {
+                        bd->entries -= bd->old_entries;
+                        bd->old_entries = bd->entries;
+                        memset(bd->set[bd->new], 0,
+                               sizeof(bd->set[0]));
+                        bd->new = 1-bd->new;
+                        bd->swap_time = seconds_since_boot();
+                }
+                spin_unlock(&state_lock);
+        }
+        hash = arch_fast_hash(&fh->fh_base, fh->fh_size, 0);
+        if (test_bit(hash&255, bd->set[0]) &&
+            test_bit((hash>>8)&255, bd->set[0]) &&
+            test_bit((hash>>16)&255, bd->set[0]))
+                return 1;
+
+        if (test_bit(hash&255, bd->set[1]) &&
+            test_bit((hash>>8)&255, bd->set[1]) &&
+            test_bit((hash>>16)&255, bd->set[1]))
+                return 1;
+
+        return 0;
+}
+
+static void block_delegations(struct knfsd_fh *fh)
+{
+        u32 hash;
+        struct bloom_pair *bd = &blocked_delegations;
+
+        hash = arch_fast_hash(&fh->fh_base, fh->fh_size, 0);
+
+        __set_bit(hash&255, bd->set[bd->new]);
+        __set_bit((hash>>8)&255, bd->set[bd->new]);
+        __set_bit((hash>>16)&255, bd->set[bd->new]);
+        if (bd->entries == 0)
+                bd->swap_time = seconds_since_boot();
+        bd->entries += 1;
+}
+
 static struct nfs4_delegation *
 alloc_init_deleg(struct nfs4_client *clp, struct nfs4_ol_stateid *stp, struct svc_fh *current_fh)
 {
@@ -372,6 +446,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_ol_stateid *stp, struct sv
         dprintk("NFSD alloc_init_deleg\n");
         if (num_delegations > max_delegations)
                 return NULL;
+        if (delegation_blocked(&current_fh->fh_handle))
+                return NULL;
         dp = delegstateid(nfs4_alloc_stid(clp, deleg_slab));
         if (dp == NULL)
                 return dp;
@@ -2770,6 +2846,8 @@ static void nfsd_break_one_deleg(struct nfs4_delegation *dp)
         /* Only place dl_time is set; protected by i_lock: */
         dp->dl_time = get_seconds();
 
+        block_delegations(&dp->dl_fh);
+
         nfsd4_cb_recall(dp);
 }
 
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 2d305a121f37..83baf2bfe9e9 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2687,6 +2687,7 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
                 nfserr = nfserr_toosmall;
                 goto fail;
         case nfserr_noent:
+                xdr_truncate_encode(xdr, start_offset);
                 goto skip_entry;
         default:
                 /*
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 6eb1d3cb5104..9b9b6f29bbf3 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -53,7 +53,7 @@ struct acpi_power_register {
         u8 bit_offset;
         u8 access_size;
         u64 address;
-} __attribute__ ((packed));
+} __packed;
 
 struct acpi_processor_cx {
         u8 valid;
@@ -83,7 +83,7 @@ struct acpi_psd_package {
         u64 domain;
         u64 coord_type;
         u64 num_processors;
-} __attribute__ ((packed));
+} __packed;
 
 struct acpi_pct_register {
         u8 descriptor;
@@ -93,7 +93,7 @@ struct acpi_pct_register {
         u8 bit_offset;
         u8 reserved;
         u64 address;
-} __attribute__ ((packed));
+} __packed;
 
 struct acpi_processor_px {
         u64 core_frequency;     /* megahertz */
@@ -124,7 +124,7 @@ struct acpi_tsd_package {
         u64 domain;
         u64 coord_type;
         u64 num_processors;
-} __attribute__ ((packed));
+} __packed;
 
 struct acpi_ptc_register {
         u8 descriptor;
@@ -134,7 +134,7 @@ struct acpi_ptc_register {
         u8 bit_offset;
         u8 reserved;
         u64 address;
-} __attribute__ ((packed));
+} __packed;
 
 struct acpi_processor_tx_tss {
         u64 freqpercentage;     /* */
diff --git a/include/drm/i915_powerwell.h b/include/drm/i915_powerwell.h
index cfdc884405b7..2baba9996094 100644
--- a/include/drm/i915_powerwell.h
+++ b/include/drm/i915_powerwell.h
@@ -30,7 +30,7 @@
 #define _I915_POWERWELL_H_
 
 /* For use by hda_i915 driver */
-extern void i915_request_power_well(void);
-extern void i915_release_power_well(void);
+extern int i915_request_power_well(void);
+extern int i915_release_power_well(void);
 
 #endif                          /* _I915_POWERWELL_H_ */
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index a002cf191427..eb726b9c5762 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -42,7 +42,7 @@ struct blk_mq_hw_ctx {
         unsigned int            nr_ctx;
         struct blk_mq_ctx       **ctxs;
 
-        unsigned int            wait_index;
+        atomic_t                wait_index;
 
         struct blk_mq_tags      *tags;
 
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 31e11051f1ba..713f8b62b435 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -920,7 +920,7 @@ static inline unsigned int blk_max_size_offset(struct request_queue *q,
                                                sector_t offset)
 {
         if (!q->limits.chunk_sectors)
-                return q->limits.max_hw_sectors;
+                return q->limits.max_sectors;
 
         return q->limits.chunk_sectors -
                         (offset & (q->limits.chunk_sectors - 1));
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 4ff262e2bf37..e2a6bd7fb133 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -133,7 +133,6 @@ extern struct request *elv_latter_request(struct request_queue *, struct request
 extern int elv_register_queue(struct request_queue *q);
 extern void elv_unregister_queue(struct request_queue *q);
 extern int elv_may_queue(struct request_queue *, int);
-extern void elv_abort_queue(struct request_queue *);
 extern void elv_completed_request(struct request_queue *, struct request *);
 extern int elv_set_request(struct request_queue *q, struct request *rq,
                            struct bio *bio, gfp_t gfp_mask);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 338e6f758c6d..e11d60cc867b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1921,6 +1921,12 @@ static inline int break_lease(struct inode *inode, unsigned int mode)
 
 static inline int break_deleg(struct inode *inode, unsigned int mode)
 {
+        /*
+         * Since this check is lockless, we must ensure that any refcounts
+         * taken are done before checking inode->i_flock. Otherwise, we could
+         * end up racing with tasks trying to set a new lease on this file.
+         */
+        smp_mb();
         if (inode->i_flock)
                 return __break_lease(inode, mode, FL_DELEG);
         return 0;
diff --git a/include/linux/profile.h b/include/linux/profile.h
index aaad3861beb8..b537a25ffa17 100644
--- a/include/linux/profile.h
+++ b/include/linux/profile.h
@@ -44,6 +44,7 @@ extern int prof_on __read_mostly;
 int profile_init(void);
 int profile_setup(char *str);
 void profile_tick(int type);
+int setup_profiling_timer(unsigned int multiplier);
 
 /*
  * Add multiple profiler hits to a given address:
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index a2d9d81038d1..14ec18d5e18b 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -395,6 +395,11 @@ static inline void regulator_bulk_free(int num_consumers,
 {
 }
 
+static inline int regulator_can_change_voltage(struct regulator *regulator)
+{
+        return 0;
+}
+
 static inline int regulator_set_voltage(struct regulator *regulator,
                                         int min_uV, int max_uV)
 {
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index f76994b9396c..519064e0c943 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -327,6 +327,7 @@ extern unsigned long get_safe_page(gfp_t gfp_mask);
 extern void hibernation_set_ops(const struct platform_hibernation_ops *ops);
 extern int hibernate(void);
 extern bool system_entering_hibernation(void);
+extern bool hibernation_available(void);
 asmlinkage int swsusp_save(void);
 extern struct pbe *restore_pblist;
 #else /* CONFIG_HIBERNATION */
@@ -339,6 +340,7 @@ static inline void swsusp_unset_page_free(struct page *p) {}
 static inline void hibernation_set_ops(const struct platform_hibernation_ops *ops) {}
 static inline int hibernate(void) { return -ENOSYS; }
 static inline bool system_entering_hibernation(void) { return false; }
+static inline bool hibernation_available(void) { return false; }
 #endif /* CONFIG_HIBERNATION */
 
 /* Hibernation and suspend events */
diff --git a/include/sound/core.h b/include/sound/core.h
index eedda2cdfe57..1df3f2fe5350 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -116,6 +116,8 @@ struct snd_card {
         int user_ctl_count;             /* count of all user controls */
         struct list_head controls;      /* all controls for this card */
         struct list_head ctl_files;     /* active control files */
+        struct mutex user_ctl_lock;     /* protects user controls against
+                                           concurrent access */
 
         struct snd_info_entry *proc_root;       /* root for soundcard specific files */
         struct snd_info_entry *proc_id; /* the card id */
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 5312fae47218..9269de254874 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -705,6 +705,7 @@ enum perf_event_type {
          *      u32                             min;
          *      u64                             ino;
          *      u64                             ino_generation;
+         *      u32                             prot, flags;
          *      char                            filename[];
          *      struct sample_id                sample_id;
          * };
diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
index 019d45008448..5664985c46a0 100644
--- a/kernel/context_tracking.c
+++ b/kernel/context_tracking.c
@@ -19,6 +19,7 @@
 #include <linux/sched.h>
 #include <linux/hardirq.h>
 #include <linux/export.h>
+#include <linux/kprobes.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/context_tracking.h>
@@ -104,6 +105,7 @@ void context_tracking_user_enter(void)
         }
         local_irq_restore(flags);
 }
+NOKPROBE_SYMBOL(context_tracking_user_enter);
 
 #ifdef CONFIG_PREEMPT
 /**
@@ -181,6 +183,7 @@ void context_tracking_user_exit(void)
         }
         local_irq_restore(flags);
 }
+NOKPROBE_SYMBOL(context_tracking_user_exit);
 
 /**
  * __context_tracking_task_switch - context switch the syscall callbacks
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 5fa58e4cffac..a33d9a2bcbd7 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -40,6 +40,7 @@
 #include <linux/mm_types.h>
 #include <linux/cgroup.h>
 #include <linux/module.h>
+#include <linux/mman.h>
 
 #include "internal.h"
 
@@ -5128,6 +5129,7 @@ struct perf_mmap_event {
         int                     maj, min;
         u64                     ino;
         u64                     ino_generation;
+        u32                     prot, flags;
 
         struct {
                 struct perf_event_header        header;
@@ -5169,6 +5171,8 @@ static void perf_event_mmap_output(struct perf_event *event,
                 mmap_event->event_id.header.size += sizeof(mmap_event->min);
                 mmap_event->event_id.header.size += sizeof(mmap_event->ino);
                 mmap_event->event_id.header.size += sizeof(mmap_event->ino_generation);
+                mmap_event->event_id.header.size += sizeof(mmap_event->prot);
+                mmap_event->event_id.header.size += sizeof(mmap_event->flags);
         }
 
         perf_event_header__init_id(&mmap_event->event_id.header, &sample, event);
@@ -5187,6 +5191,8 @@ static void perf_event_mmap_output(struct perf_event *event,
                 perf_output_put(&handle, mmap_event->min);
                 perf_output_put(&handle, mmap_event->ino);
                 perf_output_put(&handle, mmap_event->ino_generation);
+                perf_output_put(&handle, mmap_event->prot);
+                perf_output_put(&handle, mmap_event->flags);
         }
 
         __output_copy(&handle, mmap_event->file_name,
@@ -5205,6 +5211,7 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
         struct file *file = vma->vm_file;
         int maj = 0, min = 0;
         u64 ino = 0, gen = 0;
+        u32 prot = 0, flags = 0;
         unsigned int size;
         char tmp[16];
         char *buf = NULL;
@@ -5235,6 +5242,28 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
                 gen = inode->i_generation;
                 maj = MAJOR(dev);
                 min = MINOR(dev);
+
+                if (vma->vm_flags & VM_READ)
+                        prot |= PROT_READ;
+                if (vma->vm_flags & VM_WRITE)
+                        prot |= PROT_WRITE;
+                if (vma->vm_flags & VM_EXEC)
+                        prot |= PROT_EXEC;
+
+                if (vma->vm_flags & VM_MAYSHARE)
+                        flags = MAP_SHARED;
+                else
+                        flags = MAP_PRIVATE;
+
+                if (vma->vm_flags & VM_DENYWRITE)
+                        flags |= MAP_DENYWRITE;
+                if (vma->vm_flags & VM_MAYEXEC)
+                        flags |= MAP_EXECUTABLE;
+                if (vma->vm_flags & VM_LOCKED)
+                        flags |= MAP_LOCKED;
+                if (vma->vm_flags & VM_HUGETLB)
+                        flags |= MAP_HUGETLB;
+
                 goto got_name;
         } else {
                 name = (char *)arch_vma_name(vma);
@@ -5275,6 +5304,8 @@ got_name:
         mmap_event->min = min;
         mmap_event->ino = ino;
         mmap_event->ino_generation = gen;
+        mmap_event->prot = prot;
+        mmap_event->flags = flags;
 
         if (!(vma->vm_flags & VM_EXEC))
                 mmap_event->event_id.header.misc |= PERF_RECORD_MISC_MMAP_DATA;
@@ -5315,6 +5346,8 @@ void perf_event_mmap(struct vm_area_struct *vma)
                 /* .min (attr_mmap2 only) */
                 /* .ino (attr_mmap2 only) */
                 /* .ino_generation (attr_mmap2 only) */
+                /* .prot (attr_mmap2 only) */
+                /* .flags (attr_mmap2 only) */
         };
 
         perf_event_mmap_event(&mmap_event);
@@ -6897,10 +6930,6 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
         if (ret)
                 return -EFAULT;
 
-        /* disabled for now */
-        if (attr->mmap2)
-                return -EINVAL;
-
         if (attr->__reserved_1)
                 return -EINVAL;
 
diff --git a/kernel/locking/rtmutex-debug.h b/kernel/locking/rtmutex-debug.h
index 14193d596d78..ab29b6a22669 100644
--- a/kernel/locking/rtmutex-debug.h
+++ b/kernel/locking/rtmutex-debug.h
@@ -31,3 +31,8 @@ static inline int debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter,
 {
         return (waiter != NULL);
 }
+
+static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w)
+{
+        debug_rt_mutex_print_deadlock(w);
+}
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index a620d4d08ca6..fc605941b9b8 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -83,6 +83,47 @@ static inline void mark_rt_mutex_waiters(struct rt_mutex *lock)
                 owner = *p;
         } while (cmpxchg(p, owner, owner | RT_MUTEX_HAS_WAITERS) != owner);
 }
+
+/*
+ * Safe fastpath aware unlock:
+ * 1) Clear the waiters bit
+ * 2) Drop lock->wait_lock
+ * 3) Try to unlock the lock with cmpxchg
+ */
+static inline bool unlock_rt_mutex_safe(struct rt_mutex *lock)
+        __releases(lock->wait_lock)
+{
+        struct task_struct *owner = rt_mutex_owner(lock);
+
+        clear_rt_mutex_waiters(lock);
+        raw_spin_unlock(&lock->wait_lock);
+        /*
+         * If a new waiter comes in between the unlock and the cmpxchg
+         * we have two situations:
+         *
+         * unlock(wait_lock);
+         *                                      lock(wait_lock);
+         * cmpxchg(p, owner, 0) == owner
+         *                                      mark_rt_mutex_waiters(lock);
+         *                                      acquire(lock);
+         * or:
+         *
+         * unlock(wait_lock);
+         *                                      lock(wait_lock);
+         *                                      mark_rt_mutex_waiters(lock);
+         *
+         * cmpxchg(p, owner, 0) != owner
+         *                                      enqueue_waiter();
+         *                                      unlock(wait_lock);
+         * lock(wait_lock);
+         * wake waiter();
+         * unlock(wait_lock);
+         *                                      lock(wait_lock);
+         *                                      acquire(lock);
+         */
+        return rt_mutex_cmpxchg(lock, owner, NULL);
+}
+
 #else
 # define rt_mutex_cmpxchg(l,c,n)        (0)
 static inline void mark_rt_mutex_waiters(struct rt_mutex *lock)
@@ -90,6 +131,17 @@ static inline void mark_rt_mutex_waiters(struct rt_mutex *lock)
         lock->owner = (struct task_struct *)
                         ((unsigned long)lock->owner | RT_MUTEX_HAS_WAITERS);
 }
+
+/*
+ * Simple slow path only version: lock->owner is protected by lock->wait_lock.
+ */
+static inline bool unlock_rt_mutex_safe(struct rt_mutex *lock)
+        __releases(lock->wait_lock)
+{
+        lock->owner = NULL;
+        raw_spin_unlock(&lock->wait_lock);
+        return true;
+}
 #endif
 
 static inline int
@@ -260,27 +312,36 @@ static void rt_mutex_adjust_prio(struct task_struct *task)
  */
 int max_lock_depth = 1024;
 
+static inline struct rt_mutex *task_blocked_on_lock(struct task_struct *p)
+{
+        return p->pi_blocked_on ? p->pi_blocked_on->lock : NULL;
+}
+
 /*
  * Adjust the priority chain. Also used for deadlock detection.
  * Decreases task's usage by one - may thus free the task.
  *
- * @task: the task owning the mutex (owner) for which a chain walk is probably
- *        needed
+ * @task:       the task owning the mutex (owner) for which a chain walk is
+ *              probably needed
  * @deadlock_detect: do we have to carry out deadlock detection?
- * @orig_lock: the mutex (can be NULL if we are walking the chain to recheck
- *             things for a task that has just got its priority adjusted, and
- *             is waiting on a mutex)
+ * @orig_lock:  the mutex (can be NULL if we are walking the chain to recheck
+ *              things for a task that has just got its priority adjusted, and
+ *              is waiting on a mutex)
+ * @next_lock:  the mutex on which the owner of @orig_lock was blocked before
+ *              we dropped its pi_lock. Is never dereferenced, only used for
+ *              comparison to detect lock chain changes.
  * @orig_waiter: rt_mutex_waiter struct for the task that has just donated
- *               its priority to the mutex owner (can be NULL in the case
- *               depicted above or if the top waiter is gone away and we are
- *               actually deboosting the owner)
- * @top_task: the current top waiter
+ *              its priority to the mutex owner (can be NULL in the case
+ *              depicted above or if the top waiter is gone away and we are
+ *              actually deboosting the owner)
+ * @top_task:   the current top waiter
  *
  * Returns 0 or -EDEADLK.
  */
 static int rt_mutex_adjust_prio_chain(struct task_struct *task,
                                       int deadlock_detect,
                                       struct rt_mutex *orig_lock,
+                                      struct rt_mutex *next_lock,
                                       struct rt_mutex_waiter *orig_waiter,
                                       struct task_struct *top_task)
 {
@@ -314,7 +375,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
                 }
                 put_task_struct(task);
 
-                return deadlock_detect ? -EDEADLK : 0;
+                return -EDEADLK;
         }
  retry:
         /*
@@ -339,6 +400,18 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
                 goto out_unlock_pi;
 
         /*
+         * We dropped all locks after taking a refcount on @task, so
+         * the task might have moved on in the lock chain or even left
+         * the chain completely and blocks now on an unrelated lock or
+         * on @orig_lock.
+         *
+         * We stored the lock on which @task was blocked in @next_lock,
+         * so we can detect the chain change.
+         */
+        if (next_lock != waiter->lock)
+                goto out_unlock_pi;
+
+        /*
          * Drop out, when the task has no waiters. Note,
          * top_waiter can be NULL, when we are in the deboosting
          * mode!
@@ -377,7 +450,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
         if (lock == orig_lock || rt_mutex_owner(lock) == top_task) {
                 debug_rt_mutex_deadlock(deadlock_detect, orig_waiter, lock);
                 raw_spin_unlock(&lock->wait_lock);
-                ret = deadlock_detect ? -EDEADLK : 0;
+                ret = -EDEADLK;
                 goto out_unlock_pi;
         }
 
@@ -422,11 +495,26 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
                 __rt_mutex_adjust_prio(task);
         }
 
+        /*
+         * Check whether the task which owns the current lock is pi
+         * blocked itself. If yes we store a pointer to the lock for
+         * the lock chain change detection above. After we dropped
+         * task->pi_lock next_lock cannot be dereferenced anymore.
+         */
+        next_lock = task_blocked_on_lock(task);
+
         raw_spin_unlock_irqrestore(&task->pi_lock, flags);
 
         top_waiter = rt_mutex_top_waiter(lock);
         raw_spin_unlock(&lock->wait_lock);
 
+        /*
+         * We reached the end of the lock chain. Stop right here. No
+         * point to go back just to figure that out.
+         */
+        if (!next_lock)
+                goto out_put_task;
+
         if (!detect_deadlock && waiter != top_waiter)
                 goto out_put_task;
 
@@ -536,8 +624,9 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
 {
         struct task_struct *owner = rt_mutex_owner(lock);
         struct rt_mutex_waiter *top_waiter = waiter;
-        unsigned long flags;
+        struct rt_mutex *next_lock;
         int chain_walk = 0, res;
+        unsigned long flags;
 
         /*
          * Early deadlock detection. We really don't want the task to
@@ -548,7 +637,7 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
          * which is wrong, as the other waiter is not in a deadlock
          * situation.
          */
-        if (detect_deadlock && owner == task)
+        if (owner == task)
                 return -EDEADLK;
 
         raw_spin_lock_irqsave(&task->pi_lock, flags);
@@ -569,20 +658,28 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
         if (!owner)
                 return 0;
 
+        raw_spin_lock_irqsave(&owner->pi_lock, flags);
         if (waiter == rt_mutex_top_waiter(lock)) {
-                raw_spin_lock_irqsave(&owner->pi_lock, flags);
                 rt_mutex_dequeue_pi(owner, top_waiter);
                 rt_mutex_enqueue_pi(owner, waiter);
 
                 __rt_mutex_adjust_prio(owner);
                 if (owner->pi_blocked_on)
                         chain_walk = 1;
-                raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
-        }
-        else if (debug_rt_mutex_detect_deadlock(waiter, detect_deadlock))
+        } else if (debug_rt_mutex_detect_deadlock(waiter, detect_deadlock)) {
                 chain_walk = 1;
+        }
 
-        if (!chain_walk)
+        /* Store the lock on which owner is blocked or NULL */
+        next_lock = task_blocked_on_lock(owner);
+
+        raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
+        /*
+         * Even if full deadlock detection is on, if the owner is not
+         * blocked itself, we can avoid finding this out in the chain
+         * walk.
+         */
+        if (!chain_walk || !next_lock)
                 return 0;
 
         /*
@@ -594,8 +691,8 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
 
         raw_spin_unlock(&lock->wait_lock);
 
-        res = rt_mutex_adjust_prio_chain(owner, detect_deadlock, lock, waiter,
-                                         task);
+        res = rt_mutex_adjust_prio_chain(owner, detect_deadlock, lock,
+                                         next_lock, waiter, task);
 
         raw_spin_lock(&lock->wait_lock);
 
@@ -605,7 +702,8 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
 /*
  * Wake up the next waiter on the lock.
  *
- * Remove the top waiter from the current tasks waiter list and wake it up.
+ * Remove the top waiter from the current tasks pi waiter list and
+ * wake it up.
  *
  * Called with lock->wait_lock held.
  */
@@ -626,10 +724,23 @@ static void wakeup_next_waiter(struct rt_mutex *lock)
          */
         rt_mutex_dequeue_pi(current, waiter);
 
-        rt_mutex_set_owner(lock, NULL);
+        /*
+         * As we are waking up the top waiter, and the waiter stays
+         * queued on the lock until it gets the lock, this lock
+         * obviously has waiters. Just set the bit here and this has
+         * the added benefit of forcing all new tasks into the
+         * slow path making sure no task of lower priority than
+         * the top waiter can steal this lock.
+         */
+        lock->owner = (void *) RT_MUTEX_HAS_WAITERS;
 
         raw_spin_unlock_irqrestore(&current->pi_lock, flags);
 
+        /*
+         * It's safe to dereference waiter as it cannot go away as
+         * long as we hold lock->wait_lock. The waiter task needs to
+         * acquire it in order to dequeue the waiter.
+         */
         wake_up_process(waiter->task);
 }
 
@@ -644,8 +755,8 @@ static void remove_waiter(struct rt_mutex *lock,
 {
         int first = (waiter == rt_mutex_top_waiter(lock));
         struct task_struct *owner = rt_mutex_owner(lock);
+        struct rt_mutex *next_lock = NULL;
         unsigned long flags;
-        int chain_walk = 0;
 
         raw_spin_lock_irqsave(&current->pi_lock, flags);
         rt_mutex_dequeue(lock, waiter);
@@ -669,13 +780,13 @@ static void remove_waiter(struct rt_mutex *lock,
                 }
                 __rt_mutex_adjust_prio(owner);
 
-                if (owner->pi_blocked_on)
-                        chain_walk = 1;
+                /* Store the lock on which owner is blocked or NULL */
+                next_lock = task_blocked_on_lock(owner);
 
                 raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
         }
 
-        if (!chain_walk)
+        if (!next_lock)
                 return;
 
         /* gets dropped in rt_mutex_adjust_prio_chain()! */
@@ -683,7 +794,7 @@ static void remove_waiter(struct rt_mutex *lock,
 
         raw_spin_unlock(&lock->wait_lock);
 
-        rt_mutex_adjust_prio_chain(owner, 0, lock, NULL, current);
+        rt_mutex_adjust_prio_chain(owner, 0, lock, next_lock, NULL, current);
 
         raw_spin_lock(&lock->wait_lock);
 }
@@ -696,6 +807,7 @@ static void remove_waiter(struct rt_mutex *lock,
 void rt_mutex_adjust_pi(struct task_struct *task)
 {
         struct rt_mutex_waiter *waiter;
+        struct rt_mutex *next_lock;
         unsigned long flags;
 
         raw_spin_lock_irqsave(&task->pi_lock, flags);
@@ -706,12 +818,13 @@ void rt_mutex_adjust_pi(struct task_struct *task)
                 raw_spin_unlock_irqrestore(&task->pi_lock, flags);
                 return;
         }
-
+        next_lock = waiter->lock;
         raw_spin_unlock_irqrestore(&task->pi_lock, flags);
 
         /* gets dropped in rt_mutex_adjust_prio_chain()! */
         get_task_struct(task);
-        rt_mutex_adjust_prio_chain(task, 0, NULL, NULL, task);
+
+        rt_mutex_adjust_prio_chain(task, 0, NULL, next_lock, NULL, task);
 }
 
 /**
@@ -763,6 +876,26 @@ __rt_mutex_slowlock(struct rt_mutex *lock, int state,
         return ret;
 }
 
+static void rt_mutex_handle_deadlock(int res, int detect_deadlock,
+                                     struct rt_mutex_waiter *w)
+{
+        /*
+         * If the result is not -EDEADLOCK or the caller requested
+         * deadlock detection, nothing to do here.
+         */
+        if (res != -EDEADLOCK || detect_deadlock)
+                return;
+
+        /*
+         * Yell lowdly and stop the task right here.
+         */
+        rt_mutex_print_deadlock(w);
+        while (1) {
+                set_current_state(TASK_INTERRUPTIBLE);
+                schedule();
+        }
+}
+
 /*
  * Slow path lock function:
  */
@@ -802,8 +935,10 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
 
         set_current_state(TASK_RUNNING);
 
-        if (unlikely(ret))
+        if (unlikely(ret)) {
                 remove_waiter(lock, &waiter);
+                rt_mutex_handle_deadlock(ret, detect_deadlock, &waiter);
+        }
 
         /*
          * try_to_take_rt_mutex() sets the waiter bit
@@ -859,12 +994,49 @@ rt_mutex_slowunlock(struct rt_mutex *lock)
 
         rt_mutex_deadlock_account_unlock(current);
 
-        if (!rt_mutex_has_waiters(lock)) {
-                lock->owner = NULL;
-                raw_spin_unlock(&lock->wait_lock);
-                return;
+        /*
+         * We must be careful here if the fast path is enabled. If we
+         * have no waiters queued we cannot set owner to NULL here
+         * because of:
+         *
+         * foo->lock->owner = NULL;
+         *                      rtmutex_lock(foo->lock);   <- fast path
+         *                      free = atomic_dec_and_test(foo->refcnt);
+         *                      rtmutex_unlock(foo->lock); <- fast path
+         *                      if (free)
+         *                              kfree(foo);
+         * raw_spin_unlock(foo->lock->wait_lock);
+         *
+         * So for the fastpath enabled kernel:
+         *
+         * Nothing can set the waiters bit as long as we hold
+         * lock->wait_lock. So we do the following sequence:
+         *
+         *      owner = rt_mutex_owner(lock);
+         *      clear_rt_mutex_waiters(lock);
+         *      raw_spin_unlock(&lock->wait_lock);
+         *      if (cmpxchg(&lock->owner, owner, 0) == owner)
+         *              return;
+         *      goto retry;
+         *
+         * The fastpath disabled variant is simple as all access to
+         * lock->owner is serialized by lock->wait_lock:
+         *
+         *      lock->owner = NULL;
+         *      raw_spin_unlock(&lock->wait_lock);
+         */
+        while (!rt_mutex_has_waiters(lock)) {
+                /* Drops lock->wait_lock ! */
+                if (unlock_rt_mutex_safe(lock) == true)
+                        return;
+                /* Relock the rtmutex and try again */
+                raw_spin_lock(&lock->wait_lock);
         }
 
+        /*
+         * The wakeup next waiter path does not suffer from the above
+         * race. See the comments there.
+         */
         wakeup_next_waiter(lock);
 
         raw_spin_unlock(&lock->wait_lock);
@@ -1112,7 +1284,8 @@ int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
                 return 1;
         }
 
-        ret = task_blocks_on_rt_mutex(lock, waiter, task, detect_deadlock);
+        /* We enforce deadlock detection for futexes */
+        ret = task_blocks_on_rt_mutex(lock, waiter, task, 1);
 
         if (ret && !rt_mutex_owner(lock)) {
                 /*
diff --git a/kernel/locking/rtmutex.h b/kernel/locking/rtmutex.h
index a1a1dd06421d..f6a1f3c133b1 100644
--- a/kernel/locking/rtmutex.h
+++ b/kernel/locking/rtmutex.h
@@ -24,3 +24,8 @@
 #define debug_rt_mutex_print_deadlock(w)                do { } while (0)
 #define debug_rt_mutex_detect_deadlock(w,d)             (d)
 #define debug_rt_mutex_reset_waiter(w)                  do { } while (0)
+
+static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w)
+{
+        WARN(1, "rtmutex deadlock detected\n");
+}
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 49e0a20fd010..fcc2611d3f14 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -35,6 +35,7 @@
 
 static int nocompress;
 static int noresume;
+static int nohibernate;
 static int resume_wait;
 static unsigned int resume_delay;
 static char resume_file[256] = CONFIG_PM_STD_PARTITION;
@@ -62,6 +63,11 @@ bool freezer_test_done;
 
 static const struct platform_hibernation_ops *hibernation_ops;
 
+bool hibernation_available(void)
+{
+        return (nohibernate == 0);
+}
+
 /**
  * hibernation_set_ops - Set the global hibernate operations.
  * @ops: Hibernation operations to use in subsequent hibernation transitions.
@@ -642,6 +648,11 @@ int hibernate(void)
 {
         int error;
 
+        if (!hibernation_available()) {
+                pr_debug("PM: Hibernation not available.\n");
+                return -EPERM;
+        }
+
         lock_system_sleep();
         /* The snapshot device should not be opened while we're running */
         if (!atomic_add_unless(&snapshot_device_available, -1, 0)) {
@@ -734,7 +745,7 @@ static int software_resume(void)
         /*
          * If the user said "noresume".. bail out early.
          */
-        if (noresume)
+        if (noresume || !hibernation_available())
                 return 0;
 
         /*
@@ -900,6 +911,9 @@ static ssize_t disk_show(struct kobject *kobj, struct kobj_attribute *attr,
         int i;
         char *start = buf;
 
+        if (!hibernation_available())
+                return sprintf(buf, "[disabled]\n");
+
         for (i = HIBERNATION_FIRST; i <= HIBERNATION_MAX; i++) {
                 if (!hibernation_modes[i])
                         continue;
@@ -934,6 +948,9 @@ static ssize_t disk_store(struct kobject *kobj, struct kobj_attribute *attr,
         char *p;
         int mode = HIBERNATION_INVALID;
 
+        if (!hibernation_available())
+                return -EPERM;
+
         p = memchr(buf, '\n', n);
         len = p ? p - buf : n;
 
@@ -1101,6 +1118,10 @@ static int __init hibernate_setup(char *str)
                 noresume = 1;
         else if (!strncmp(str, "nocompress", 10))
                 nocompress = 1;
+        else if (!strncmp(str, "no", 2)) {
+                noresume = 1;
+                nohibernate = 1;
+        }
         return 1;
 }
 
@@ -1125,9 +1146,23 @@ static int __init resumedelay_setup(char *str)
         return 1;
 }
 
+static int __init nohibernate_setup(char *str)
+{
+        noresume = 1;
+        nohibernate = 1;
+        return 1;
+}
+
+static int __init kaslr_nohibernate_setup(char *str)
+{
+        return nohibernate_setup(str);
+}
+
 __setup("noresume", noresume_setup);
 __setup("resume_offset=", resume_offset_setup);
 __setup("resume=", resume_setup);
 __setup("hibernate=", hibernate_setup);
 __setup("resumewait", resumewait_setup);
 __setup("resumedelay=", resumedelay_setup);
+__setup("nohibernate", nohibernate_setup);
+__setup("kaslr", kaslr_nohibernate_setup);
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 573410d6647e..8e90f330f139 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -300,13 +300,11 @@ static ssize_t state_show(struct kobject *kobj, struct kobj_attribute *attr,
                         s += sprintf(s,"%s ", pm_states[i].label);
 
 #endif
-#ifdef CONFIG_HIBERNATION
-        s += sprintf(s, "%s\n", "disk");
-#else
+        if (hibernation_available())
+                s += sprintf(s, "disk ");
         if (s != buf)
                 /* convert the last space to a newline */
                 *(s-1) = '\n';
-#endif
         return (s - buf);
 }
 
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 98d357584cd6..526e8911460a 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -49,6 +49,9 @@ static int snapshot_open(struct inode *inode, struct file *filp)
         struct snapshot_data *data;
         int error;
 
+        if (!hibernation_available())
+                return -EPERM;
+
         lock_system_sleep();
 
         if (!atomic_add_unless(&snapshot_device_available, -1, 0)) {
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index ba9ed453c4ed..7de6555cfea0 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -152,10 +152,6 @@ static unsigned long hung_task_timeout_max = (LONG_MAX/HZ);
 #ifdef CONFIG_SPARC
 #endif
 
-#ifdef CONFIG_SPARC64
-extern int sysctl_tsb_ratio;
-#endif
-
 #ifdef __hppa__
 extern int pwrsw_enabled;
 #endif
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index b5f08f727868..35d5a5877d04 100644
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -289,14 +289,16 @@ EOF
 
 fi
 
-# Build header package
-(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl > "$objtree/debian/hdrsrcfiles")
-(cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles")
-(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
+# Build kernel header package
+(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl) > "$objtree/debian/hdrsrcfiles"
+(cd $srctree; find arch/$SRCARCH/include include scripts -type f) >> "$objtree/debian/hdrsrcfiles"
+(cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles"
+(cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles"
+(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles"
 destdir=$kernel_headers_dir/usr/src/linux-headers-$version
 mkdir -p "$destdir"
-(cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -)
-(cd $objtree; tar -c -f - -T "$objtree/debian/hdrobjfiles") | (cd $destdir; tar -xf -)
+(cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -)
+(cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -)
 (cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
 ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
 rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index 995c1eafaff6..e046bff33589 100644
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -125,12 +125,11 @@ esac
 # Create the tarball
 #
 (
-        cd "${tmpdir}"
         opts=
         if tar --owner=root --group=root --help >/dev/null 2>&1; then
                 opts="--owner=root --group=root"
         fi
-        tar cf - boot/* lib/* $opts | ${compress} > "${tarball}${file_ext}"
+        tar cf - -C "$tmpdir" boot/ lib/ $opts | ${compress} > "${tarball}${file_ext}"
 )
 
 echo "Tarball successfully created in ${tarball}${file_ext}"
diff --git a/sound/core/control.c b/sound/core/control.c
index f038f5afafe2..f0b0e14497a5 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -288,6 +288,10 @@ static bool snd_ctl_remove_numid_conflict(struct snd_card *card,
 {
         struct snd_kcontrol *kctl;
 
+        /* Make sure that the ids assigned to the control do not wrap around */
+        if (card->last_numid >= UINT_MAX - count)
+                card->last_numid = 0;
+
         list_for_each_entry(kctl, &card->controls, list) {
                 if (kctl->id.numid < card->last_numid + 1 + count &&
                     kctl->id.numid + kctl->count > card->last_numid + 1) {
@@ -330,6 +334,7 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
 {
         struct snd_ctl_elem_id id;
         unsigned int idx;
+        unsigned int count;
         int err = -EINVAL;
 
         if (! kcontrol)
@@ -337,6 +342,9 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
         if (snd_BUG_ON(!card || !kcontrol->info))
                 goto error;
         id = kcontrol->id;
+        if (id.index > UINT_MAX - kcontrol->count)
+                goto error;
+
         down_write(&card->controls_rwsem);
         if (snd_ctl_find_id(card, &id)) {
                 up_write(&card->controls_rwsem);
@@ -358,8 +366,9 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
         card->controls_count += kcontrol->count;
         kcontrol->id.numid = card->last_numid + 1;
         card->last_numid += kcontrol->count;
+        count = kcontrol->count;
         up_write(&card->controls_rwsem);
-        for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++)
+        for (idx = 0; idx < count; idx++, id.index++, id.numid++)
                 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
         return 0;
 
@@ -388,6 +397,7 @@ int snd_ctl_replace(struct snd_card *card, struct snd_kcontrol *kcontrol,
                     bool add_on_replace)
 {
         struct snd_ctl_elem_id id;
+        unsigned int count;
         unsigned int idx;
         struct snd_kcontrol *old;
         int ret;
@@ -423,8 +433,9 @@ add:
         card->controls_count += kcontrol->count;
         kcontrol->id.numid = card->last_numid + 1;
         card->last_numid += kcontrol->count;
+        count = kcontrol->count;
         up_write(&card->controls_rwsem);
-        for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++)
+        for (idx = 0; idx < count; idx++, id.index++, id.numid++)
                 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
         return 0;
 
@@ -897,9 +908,9 @@ static int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
                         result = kctl->put(kctl, control);
                 }
                 if (result > 0) {
+                        struct snd_ctl_elem_id id = control->id;
                         up_read(&card->controls_rwsem);
-                        snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
-                                       &control->id);
+                        snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &id);
                         return 0;
                 }
         }
@@ -991,6 +1002,7 @@ static int snd_ctl_elem_unlock(struct snd_ctl_file *file,
 
 struct user_element {
         struct snd_ctl_elem_info info;
+        struct snd_card *card;
         void *elem_data;                /* element data */
         unsigned long elem_data_size;   /* size of element data in bytes */
         void *tlv_data;                 /* TLV data */
@@ -1034,7 +1046,9 @@ static int snd_ctl_elem_user_get(struct snd_kcontrol *kcontrol,
 {
         struct user_element *ue = kcontrol->private_data;
 
+        mutex_lock(&ue->card->user_ctl_lock);
         memcpy(&ucontrol->value, ue->elem_data, ue->elem_data_size);
+        mutex_unlock(&ue->card->user_ctl_lock);
         return 0;
 }
 
@@ -1043,10 +1057,12 @@ static int snd_ctl_elem_user_put(struct snd_kcontrol *kcontrol,
 {
         int change;
         struct user_element *ue = kcontrol->private_data;
-        
+
+        mutex_lock(&ue->card->user_ctl_lock);
         change = memcmp(&ucontrol->value, ue->elem_data, ue->elem_data_size) != 0;
         if (change)
                 memcpy(ue->elem_data, &ucontrol->value, ue->elem_data_size);
+        mutex_unlock(&ue->card->user_ctl_lock);
         return change;
 }
 
@@ -1066,19 +1082,32 @@ static int snd_ctl_elem_user_tlv(struct snd_kcontrol *kcontrol,
                 new_data = memdup_user(tlv, size);
                 if (IS_ERR(new_data))
                         return PTR_ERR(new_data);
+                mutex_lock(&ue->card->user_ctl_lock);
                 change = ue->tlv_data_size != size;
                 if (!change)
                         change = memcmp(ue->tlv_data, new_data, size);
                 kfree(ue->tlv_data);
                 ue->tlv_data = new_data;
                 ue->tlv_data_size = size;
+                mutex_unlock(&ue->card->user_ctl_lock);
         } else {
-                if (! ue->tlv_data_size || ! ue->tlv_data)
-                        return -ENXIO;
-                if (size < ue->tlv_data_size)
-                        return -ENOSPC;
+                int ret = 0;
+
+                mutex_lock(&ue->card->user_ctl_lock);
+                if (!ue->tlv_data_size || !ue->tlv_data) {
+                        ret = -ENXIO;
+                        goto err_unlock;
+                }
+                if (size < ue->tlv_data_size) {
+                        ret = -ENOSPC;
+                        goto err_unlock;
+                }
                 if (copy_to_user(tlv, ue->tlv_data, ue->tlv_data_size))
-                        return -EFAULT;
+                        ret = -EFAULT;
+err_unlock:
+                mutex_unlock(&ue->card->user_ctl_lock);
+                if (ret)
+                        return ret;
         }
         return change;
 }
@@ -1136,8 +1165,6 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
         struct user_element *ue;
         int idx, err;
 
-        if (!replace && card->user_ctl_count >= MAX_USER_CONTROLS)
-                return -ENOMEM;
         if (info->count < 1)
                 return -EINVAL;
         access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
@@ -1146,21 +1173,16 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
                                  SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE));
         info->id.numid = 0;
         memset(&kctl, 0, sizeof(kctl));
-        down_write(&card->controls_rwsem);
-        _kctl = snd_ctl_find_id(card, &info->id);
-        err = 0;
-        if (_kctl) {
-                if (replace)
-                        err = snd_ctl_remove(card, _kctl);
-                else
-                        err = -EBUSY;
-        } else {
-                if (replace)
-                        err = -ENOENT;
+
+        if (replace) {
+                err = snd_ctl_remove_user_ctl(file, &info->id);
+                if (err)
+                        return err;
         }
-        up_write(&card->controls_rwsem);
-        if (err < 0)
-                return err;
+
+        if (card->user_ctl_count >= MAX_USER_CONTROLS)
+                return -ENOMEM;
+
         memcpy(&kctl.id, &info->id, sizeof(info->id));
         kctl.count = info->owner ? info->owner : 1;
         access |= SNDRV_CTL_ELEM_ACCESS_USER;
@@ -1210,6 +1232,7 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
         ue = kzalloc(sizeof(struct user_element) + private_size, GFP_KERNEL);
         if (ue == NULL)
                 return -ENOMEM;
+        ue->card = card;
         ue->info = *info;
         ue->info.access = 0;
         ue->elem_data = (char *)ue + sizeof(*ue);
@@ -1321,8 +1344,9 @@ static int snd_ctl_tlv_ioctl(struct snd_ctl_file *file,
                 }
                 err = kctl->tlv.c(kctl, op_flag, tlv.length, _tlv->tlv);
                 if (err > 0) {
+                        struct snd_ctl_elem_id id = kctl->id;
                         up_read(&card->controls_rwsem);
-                        snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_TLV, &kctl->id);
+                        snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_TLV, &id);
                         return 0;
                 }
         } else {
diff --git a/sound/core/init.c b/sound/core/init.c
index 5ee83845c5de..7bdfd19e24a8 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -232,6 +232,7 @@ int snd_card_new(struct device *parent, int idx, const char *xid,
         INIT_LIST_HEAD(&card->devices);
         init_rwsem(&card->controls_rwsem);
         rwlock_init(&card->ctl_files_rwlock);
+        mutex_init(&card->user_ctl_lock);
         INIT_LIST_HEAD(&card->controls);
         INIT_LIST_HEAD(&card->ctl_files);
         spin_lock_init(&card->files_lock);
diff --git a/sound/pci/hda/hda_i915.c b/sound/pci/hda/hda_i915.c
index 9d07e4edacdb..e9e8a4a4a9a1 100644
--- a/sound/pci/hda/hda_i915.c
+++ b/sound/pci/hda/hda_i915.c
@@ -22,20 +22,20 @@
 #include <drm/i915_powerwell.h>
 #include "hda_i915.h"
 
-static void (*get_power)(void);
-static void (*put_power)(void);
+static int (*get_power)(void);
+static int (*put_power)(void);
 
-void hda_display_power(bool enable)
+int hda_display_power(bool enable)
 {
         if (!get_power || !put_power)
-                return;
+                return -ENODEV;
 
         pr_debug("HDA display power %s \n",
                         enable ? "Enable" : "Disable");
         if (enable)
-                get_power();
+                return get_power();
         else
-                put_power();
+                return put_power();
 }
 
 int hda_i915_init(void)
diff --git a/sound/pci/hda/hda_i915.h b/sound/pci/hda/hda_i915.h
index 5a63da2c53e5..bfd835f8f1aa 100644
--- a/sound/pci/hda/hda_i915.h
+++ b/sound/pci/hda/hda_i915.h
@@ -17,11 +17,11 @@
 #define __SOUND_HDA_I915_H
 
 #ifdef CONFIG_SND_HDA_I915
-void hda_display_power(bool enable);
+int hda_display_power(bool enable);
 int hda_i915_init(void);
 int hda_i915_exit(void);
 #else
-static inline void hda_display_power(bool enable) {}
+static inline int hda_display_power(bool enable) { return 0; }
 static inline int hda_i915_init(void)
 {
         return -ENODEV;
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index bb65a124e006..23fd6b9aecca 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1656,8 +1656,13 @@ static int azx_probe_continue(struct azx *chip)
                                 "Error request power-well from i915\n");
                         goto out_free;
                 }
+                err = hda_display_power(true);
+                if (err < 0) {
+                        dev_err(chip->card->dev,
+                                "Cannot turn on display power on i915\n");
+                        goto out_free;
+                }
 #endif
-                hda_display_power(true);
         }
 
         err = azx_first_init(chip);
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index cbfa1e18f651..0b9571c858f8 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -225,11 +225,11 @@ config SND_SOC_ADAU1373
 config SND_SOC_ADAU1701
         tristate "Analog Devices ADAU1701 CODEC"
         depends on I2C
-        select SND_SOC_SIGMADSP
+        select SND_SOC_SIGMADSP_I2C
 
 config SND_SOC_ADAU17X1
         tristate
-        select SND_SOC_SIGMADSP
+        select SND_SOC_SIGMADSP_REGMAP
 
 config SND_SOC_ADAU1761
         tristate
@@ -476,6 +476,14 @@ config SND_SOC_SIGMADSP
         tristate
         select CRC32
 
+config SND_SOC_SIGMADSP_I2C
+        tristate
+        select SND_SOC_SIGMADSP
+
+config SND_SOC_SIGMADSP_REGMAP
+        tristate
+        select SND_SOC_SIGMADSP
+
 config SND_SOC_SIRF_AUDIO_CODEC
         tristate "SiRF SoC internal audio codec"
         select REGMAP_MMIO
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index be3377b8d73f..1bd6e1cf6f82 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -77,6 +77,8 @@ snd-soc-sgtl5000-objs := sgtl5000.o
 snd-soc-alc5623-objs := alc5623.o
 snd-soc-alc5632-objs := alc5632.o
 snd-soc-sigmadsp-objs := sigmadsp.o
+snd-soc-sigmadsp-i2c-objs := sigmadsp-i2c.o
+snd-soc-sigmadsp-regmap-objs := sigmadsp-regmap.o
 snd-soc-si476x-objs := si476x.o
 snd-soc-sirf-audio-codec-objs := sirf-audio-codec.o
 snd-soc-sn95031-objs := sn95031.o
@@ -240,6 +242,8 @@ obj-$(CONFIG_SND_SOC_RT5651)	+= snd-soc-rt5651.o
 obj-$(CONFIG_SND_SOC_RT5677)    += snd-soc-rt5677.o
 obj-$(CONFIG_SND_SOC_SGTL5000)  += snd-soc-sgtl5000.o
 obj-$(CONFIG_SND_SOC_SIGMADSP)  += snd-soc-sigmadsp.o
+obj-$(CONFIG_SND_SOC_SIGMADSP_I2C)      += snd-soc-sigmadsp-i2c.o
+obj-$(CONFIG_SND_SOC_SIGMADSP_REGMAP)   += snd-soc-sigmadsp-regmap.o
 obj-$(CONFIG_SND_SOC_SI476X)    += snd-soc-si476x.o
 obj-$(CONFIG_SND_SOC_SN95031)   +=snd-soc-sn95031.o
 obj-$(CONFIG_SND_SOC_SPDIF)     += snd-soc-spdif-rx.o snd-soc-spdif-tx.o
diff --git a/sound/soc/codecs/sigmadsp-i2c.c b/sound/soc/codecs/sigmadsp-i2c.c
new file mode 100644
index 000000000000..246081aae8ca
--- /dev/null
+++ b/sound/soc/codecs/sigmadsp-i2c.c
@@ -0,0 +1,35 @@
+/*
+ * Load Analog Devices SigmaStudio firmware files
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/i2c.h>
+#include <linux/export.h>
+#include <linux/module.h>
+
+#include "sigmadsp.h"
+
+static int sigma_action_write_i2c(void *control_data,
+        const struct sigma_action *sa, size_t len)
+{
+        return i2c_master_send(control_data, (const unsigned char *)&sa->addr,
+                len);
+}
+
+int process_sigma_firmware(struct i2c_client *client, const char *name)
+{
+        struct sigma_firmware ssfw;
+
+        ssfw.control_data = client;
+        ssfw.write = sigma_action_write_i2c;
+
+        return _process_sigma_firmware(&client->dev, &ssfw, name);
+}
+EXPORT_SYMBOL(process_sigma_firmware);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("SigmaDSP I2C firmware loader");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/sigmadsp-regmap.c b/sound/soc/codecs/sigmadsp-regmap.c
new file mode 100644
index 000000000000..f78ed8d2cfb2
--- /dev/null
+++ b/sound/soc/codecs/sigmadsp-regmap.c
@@ -0,0 +1,36 @@
+/*
+ * Load Analog Devices SigmaStudio firmware files
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/regmap.h>
+#include <linux/export.h>
+#include <linux/module.h>
+
+#include "sigmadsp.h"
+
+static int sigma_action_write_regmap(void *control_data,
+        const struct sigma_action *sa, size_t len)
+{
+        return regmap_raw_write(control_data, be16_to_cpu(sa->addr),
+                sa->payload, len - 2);
+}
+
+int process_sigma_firmware_regmap(struct device *dev, struct regmap *regmap,
+        const char *name)
+{
+        struct sigma_firmware ssfw;
+
+        ssfw.control_data = regmap;
+        ssfw.write = sigma_action_write_regmap;
+
+        return _process_sigma_firmware(dev, &ssfw, name);
+}
+EXPORT_SYMBOL(process_sigma_firmware_regmap);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("SigmaDSP regmap firmware loader");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/sigmadsp.c b/sound/soc/codecs/sigmadsp.c
index 4068f2491232..f2de7e049bc6 100644
--- a/sound/soc/codecs/sigmadsp.c
+++ b/sound/soc/codecs/sigmadsp.c
@@ -34,23 +34,6 @@ enum {
         SIGMA_ACTION_END,
 };
 
-struct sigma_action {
-        u8 instr;
-        u8 len_hi;
-        __le16 len;
-        __be16 addr;
-        unsigned char payload[];
-} __packed;
-
-struct sigma_firmware {
-        const struct firmware *fw;
-        size_t pos;
-
-        void *control_data;
-        int (*write)(void *control_data, const struct sigma_action *sa,
-                        size_t len);
-};
-
 static inline u32 sigma_action_len(struct sigma_action *sa)
 {
         return (sa->len_hi << 16) | le16_to_cpu(sa->len);
@@ -138,7 +121,7 @@ process_sigma_actions(struct sigma_firmware *ssfw)
         return 0;
 }
 
-static int _process_sigma_firmware(struct device *dev,
+int _process_sigma_firmware(struct device *dev,
         struct sigma_firmware *ssfw, const char *name)
 {
         int ret;
@@ -197,50 +180,6 @@ static int _process_sigma_firmware(struct device *dev,
 
         return ret;
 }
-
-#if IS_ENABLED(CONFIG_I2C)
-
-static int sigma_action_write_i2c(void *control_data,
-        const struct sigma_action *sa, size_t len)
-{
-        return i2c_master_send(control_data, (const unsigned char *)&sa->addr,
-                len);
-}
-
-int process_sigma_firmware(struct i2c_client *client, const char *name)
-{
-        struct sigma_firmware ssfw;
-
-        ssfw.control_data = client;
-        ssfw.write = sigma_action_write_i2c;
-
-        return _process_sigma_firmware(&client->dev, &ssfw, name);
-}
-EXPORT_SYMBOL(process_sigma_firmware);
-
-#endif
-
-#if IS_ENABLED(CONFIG_REGMAP)
-
-static int sigma_action_write_regmap(void *control_data,
-        const struct sigma_action *sa, size_t len)
-{
-        return regmap_raw_write(control_data, be16_to_cpu(sa->addr),
-                sa->payload, len - 2);
-}
-
-int process_sigma_firmware_regmap(struct device *dev, struct regmap *regmap,
-        const char *name)
-{
-        struct sigma_firmware ssfw;
-
-        ssfw.control_data = regmap;
-        ssfw.write = sigma_action_write_regmap;
-
-        return _process_sigma_firmware(dev, &ssfw, name);
-}
-EXPORT_SYMBOL(process_sigma_firmware_regmap);
-
-#endif
+EXPORT_SYMBOL_GPL(_process_sigma_firmware);
 
 MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/sigmadsp.h b/sound/soc/codecs/sigmadsp.h
index e439cbd7af7d..c47cd23e9827 100644
--- a/sound/soc/codecs/sigmadsp.h
+++ b/sound/soc/codecs/sigmadsp.h
@@ -12,6 +12,26 @@
 #include <linux/device.h>
 #include <linux/regmap.h>
 
+struct sigma_action {
+        u8 instr;
+        u8 len_hi;
+        __le16 len;
+        __be16 addr;
+        unsigned char payload[];
+} __packed;
+
+struct sigma_firmware {
+        const struct firmware *fw;
+        size_t pos;
+
+        void *control_data;
+        int (*write)(void *control_data, const struct sigma_action *sa,
+                        size_t len);
+};
+
+int _process_sigma_firmware(struct device *dev,
+        struct sigma_firmware *ssfw, const char *name);
+
 struct i2c_client;
 
 extern int process_sigma_firmware(struct i2c_client *client, const char *name);
diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index 6bb0ea59284f..a609aafc994d 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -923,8 +923,8 @@ static int fsl_soc_dma_probe(struct platform_device *pdev)
         dma->dai.pcm_free = fsl_dma_free_dma_buffers;
 
         /* Store the SSI-specific information that we need */
-        dma->ssi_stx_phys = res.start + offsetof(struct ccsr_ssi, stx0);
-        dma->ssi_srx_phys = res.start + offsetof(struct ccsr_ssi, srx0);
+        dma->ssi_stx_phys = res.start + CCSR_SSI_STX0;
+        dma->ssi_srx_phys = res.start + CCSR_SSI_SRX0;
 
         iprop = of_get_property(ssi_np, "fsl,fifo-depth", NULL);
         if (iprop)
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index b912d45a2a4c..d7a60614dd21 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -762,7 +762,7 @@ static int fsl_spdif_vbit_get(struct snd_kcontrol *kcontrol,
         struct regmap *regmap = spdif_priv->regmap;
         u32 val;
 
-        val = regmap_read(regmap, REG_SPDIF_SIS, &val);
+        regmap_read(regmap, REG_SPDIF_SIS, &val);
         ucontrol->value.integer.value[0] = (val & INT_VAL_NOGOOD) != 0;
         regmap_write(regmap, REG_SPDIF_SIC, INT_VAL_NOGOOD);
 
@@ -1076,7 +1076,7 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
                                 goto out;
                         } else if (arate / rate[index] == 1) {
                                 /* A little bigger than expect */
-                                sub = (arate - rate[index]) * 100000;
+                                sub = (u64)(arate - rate[index]) * 100000;
                                 do_div(sub, rate[index]);
                                 if (sub >= savesub)
                                         continue;
@@ -1086,7 +1086,7 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
                                 spdif_priv->txrate[index] = arate;
                         } else if (rate[index] / arate == 1) {
                                 /* A little smaller than expect */
-                                sub = (rate[index] - arate) * 100000;
+                                sub = (u64)(rate[index] - arate) * 100000;
                                 do_div(sub, rate[index]);
                                 if (sub >= savesub)
                                         continue;
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 6acb225ec6fd..2434b6d61675 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -11,6 +11,7 @@ config SND_PXA2XX_SOC
 config SND_MMP_SOC
         bool "Soc Audio for Marvell MMP chips"
         depends on ARCH_MMP
+        select MMP_SRAM
         select SND_SOC_GENERIC_DMAENGINE_PCM
         select SND_ARM
         help
@@ -40,7 +41,7 @@ config SND_MMP_SOC_SSPA
 
 config SND_PXA2XX_SOC_CORGI
         tristate "SoC Audio support for Sharp Zaurus SL-C7x0"
-        depends on SND_PXA2XX_SOC && PXA_SHARP_C7xx
+        depends on SND_PXA2XX_SOC && PXA_SHARP_C7xx && I2C
         select SND_PXA2XX_SOC_I2S
         select SND_SOC_WM8731
         help
@@ -49,7 +50,7 @@ config SND_PXA2XX_SOC_CORGI
 
 config SND_PXA2XX_SOC_SPITZ
         tristate "SoC Audio support for Sharp Zaurus SL-Cxx00"
-        depends on SND_PXA2XX_SOC && PXA_SHARP_Cxx00
+        depends on SND_PXA2XX_SOC && PXA_SHARP_Cxx00 && I2C
         select SND_PXA2XX_SOC_I2S
         select SND_SOC_WM8750
         help
@@ -58,7 +59,7 @@ config SND_PXA2XX_SOC_SPITZ
 
 config SND_PXA2XX_SOC_Z2
         tristate "SoC Audio support for Zipit Z2"
-        depends on SND_PXA2XX_SOC && MACH_ZIPIT2
+        depends on SND_PXA2XX_SOC && MACH_ZIPIT2 && I2C
         select SND_PXA2XX_SOC_I2S
         select SND_SOC_WM8750
         help
@@ -66,7 +67,7 @@ config SND_PXA2XX_SOC_Z2
 
 config SND_PXA2XX_SOC_POODLE
         tristate "SoC Audio support for Poodle"
-        depends on SND_PXA2XX_SOC && MACH_POODLE
+        depends on SND_PXA2XX_SOC && MACH_POODLE && I2C
         select SND_PXA2XX_SOC_I2S
         select SND_SOC_WM8731
         help
@@ -181,7 +182,7 @@ config SND_PXA2XX_SOC_HX4700
 
 config SND_PXA2XX_SOC_MAGICIAN
         tristate "SoC Audio support for HTC Magician"
-        depends on SND_PXA2XX_SOC && MACH_MAGICIAN
+        depends on SND_PXA2XX_SOC && MACH_MAGICIAN && I2C
         select SND_PXA2XX_SOC_I2S
         select SND_PXA_SOC_SSP
         select SND_SOC_UDA1380
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 91880156e1ae..4e86265f625c 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -315,7 +315,7 @@ static void rsnd_dma_of_name(struct rsnd_dma *dma,
                 dst_mod = mod[index];
         } else {
                 src_mod = mod[index];
-                dst_mod = mod[index + 1];
+                dst_mod = mod[index - 1];
         }
 
         index = 0;
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index a74b9bf23d9f..cdc837ed144d 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2755,7 +2755,7 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
         unsigned int mask = (1 << fls(max)) - 1;
         unsigned int invert = mc->invert;
         unsigned int val;
-        int connect, change;
+        int connect, change, reg_change = 0;
         struct snd_soc_dapm_update update;
         int ret = 0;
 
@@ -2773,20 +2773,23 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
         mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
 
         change = dapm_kcontrol_set_value(kcontrol, val);
-        if (change) {
-                if (reg != SND_SOC_NOPM) {
-                        mask = mask << shift;
-                        val = val << shift;
-
-                        if (snd_soc_test_bits(codec, reg, mask, val)) {
-                                update.kcontrol = kcontrol;
-                                update.reg = reg;
-                                update.mask = mask;
-                                update.val = val;
-                                card->update = &update;
-                        }
 
+        if (reg != SND_SOC_NOPM) {
+                mask = mask << shift;
+                val = val << shift;
+
+                reg_change = snd_soc_test_bits(codec, reg, mask, val);
+        }
+
+        if (change || reg_change) {
+                if (reg_change) {
+                        update.kcontrol = kcontrol;
+                        update.reg = reg;
+                        update.mask = mask;
+                        update.val = val;
+                        card->update = &update;
                 }
+                change |= reg_change;
 
                 ret = soc_dapm_mixer_update_power(card, kcontrol, connect);
 
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index b83184f2d484..93825a17dcce 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -765,6 +765,9 @@ static void free_arg(struct print_arg *arg)
         case PRINT_BSTRING:
                 free(arg->string.string);
                 break;
+        case PRINT_BITMASK:
+                free(arg->bitmask.bitmask);
+                break;
         case PRINT_DYNAMIC_ARRAY:
                 free(arg->dynarray.index);
                 break;
@@ -2268,6 +2271,7 @@ static int arg_num_eval(struct print_arg *arg, long long *val)
         case PRINT_FIELD ... PRINT_SYMBOL:
         case PRINT_STRING:
         case PRINT_BSTRING:
+        case PRINT_BITMASK:
         default:
                 do_warning("invalid eval type %d", arg->type);
                 ret = 0;
@@ -2296,6 +2300,7 @@ static char *arg_eval (struct print_arg *arg)
         case PRINT_FIELD ... PRINT_SYMBOL:
         case PRINT_STRING:
         case PRINT_BSTRING:
+        case PRINT_BITMASK:
         default:
                 do_warning("invalid eval type %d", arg->type);
                 break;
@@ -2683,6 +2688,35 @@ process_str(struct event_format *event __maybe_unused, struct print_arg *arg,
         return EVENT_ERROR;
 }
 
+static enum event_type
+process_bitmask(struct event_format *event __maybe_unused, struct print_arg *arg,
+            char **tok)
+{
+        enum event_type type;
+        char *token;
+
+        if (read_expect_type(EVENT_ITEM, &token) < 0)
+                goto out_free;
+
+        arg->type = PRINT_BITMASK;
+        arg->bitmask.bitmask = token;
+        arg->bitmask.offset = -1;
+
+        if (read_expected(EVENT_DELIM, ")") < 0)
+                goto out_err;
+
+        type = read_token(&token);
+        *tok = token;
+
+        return type;
+
+ out_free:
+        free_token(token);
+ out_err:
+        *tok = NULL;
+        return EVENT_ERROR;
+}
+
 static struct pevent_function_handler *
 find_func_handler(struct pevent *pevent, char *func_name)
 {
@@ -2797,6 +2831,10 @@ process_function(struct event_format *event, struct print_arg *arg,
                 free_token(token);
                 return process_str(event, arg, tok);
         }
+        if (strcmp(token, "__get_bitmask") == 0) {
+                free_token(token);
+                return process_bitmask(event, arg, tok);
+        }
         if (strcmp(token, "__get_dynamic_array") == 0) {
                 free_token(token);
                 return process_dynamic_array(event, arg, tok);
@@ -3324,6 +3362,7 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
                 return eval_type(val, arg, 0);
         case PRINT_STRING:
         case PRINT_BSTRING:
+        case PRINT_BITMASK:
                 return 0;
         case PRINT_FUNC: {
                 struct trace_seq s;
@@ -3556,6 +3595,60 @@ static void print_str_to_seq(struct trace_seq *s, const char *format,
                 trace_seq_printf(s, format, str);
 }
 
+static void print_bitmask_to_seq(struct pevent *pevent,
+                                 struct trace_seq *s, const char *format,
+                                 int len_arg, const void *data, int size)
+{
+        int nr_bits = size * 8;
+        int str_size = (nr_bits + 3) / 4;
+        int len = 0;
+        char buf[3];
+        char *str;
+        int index;
+        int i;
+
+        /*
+         * The kernel likes to put in commas every 32 bits, we
+         * can do the same.
+         */
+        str_size += (nr_bits - 1) / 32;
+
+        str = malloc(str_size + 1);
+        if (!str) {
+                do_warning("%s: not enough memory!", __func__);
+                return;
+        }
+        str[str_size] = 0;
+
+        /* Start out with -2 for the two chars per byte */
+        for (i = str_size - 2; i >= 0; i -= 2) {
+                /*
+                 * data points to a bit mask of size bytes.
+                 * In the kernel, this is an array of long words, thus
+                 * endianess is very important.
+                 */
+                if (pevent->file_bigendian)
+                        index = size - (len + 1);
+                else
+                        index = len;
+
+                snprintf(buf, 3, "%02x", *((unsigned char *)data + index));
+                memcpy(str + i, buf, 2);
+                len++;
+                if (!(len & 3) && i > 0) {
+                        i--;
+                        str[i] = ',';
+                }
+        }
+
+        if (len_arg >= 0)
+                trace_seq_printf(s, format, len_arg, str);
+        else
+                trace_seq_printf(s, format, str);
+
+        free(str);
+}
+
 static void print_str_arg(struct trace_seq *s, void *data, int size,
                           struct event_format *event, const char *format,
                           int len_arg, struct print_arg *arg)
@@ -3691,6 +3784,23 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
         case PRINT_BSTRING:
                 print_str_to_seq(s, format, len_arg, arg->string.string);
                 break;
+        case PRINT_BITMASK: {
+                int bitmask_offset;
+                int bitmask_size;
+
+                if (arg->bitmask.offset == -1) {
+                        struct format_field *f;
+
+                        f = pevent_find_any_field(event, arg->bitmask.bitmask);
+                        arg->bitmask.offset = f->offset;
+                }
+                bitmask_offset = data2host4(pevent, data + arg->bitmask.offset);
+                bitmask_size = bitmask_offset >> 16;
+                bitmask_offset &= 0xffff;
+                print_bitmask_to_seq(pevent, s, format, len_arg,
+                                     data + bitmask_offset, bitmask_size);
+                break;
+        }
         case PRINT_OP:
                 /*
                  * The only op for string should be ? :
@@ -4822,6 +4932,9 @@ static void print_args(struct print_arg *args)
         case PRINT_BSTRING:
                 printf("__get_str(%s)", args->string.string);
                 break;
+        case PRINT_BITMASK:
+                printf("__get_bitmask(%s)", args->bitmask.bitmask);
+                break;
         case PRINT_TYPE:
                 printf("(%s)", args->typecast.type);
                 print_args(args->typecast.item);
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index feab94281634..7a3873ff9a4f 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -107,8 +107,8 @@ typedef int (*pevent_event_handler_func)(struct trace_seq *s,
 typedef int (*pevent_plugin_load_func)(struct pevent *pevent);
 typedef int (*pevent_plugin_unload_func)(struct pevent *pevent);
 
-struct plugin_option {
-        struct plugin_option            *next;
+struct pevent_plugin_option {
+        struct pevent_plugin_option     *next;
         void                            *handle;
         char                            *file;
         char                            *name;
@@ -135,7 +135,7 @@ struct plugin_option {
  * PEVENT_PLUGIN_OPTIONS:  (optional)
  *   Plugin options that can be set before loading
  *
- *   struct plugin_option PEVENT_PLUGIN_OPTIONS[] = {
+ *   struct pevent_plugin_option PEVENT_PLUGIN_OPTIONS[] = {
  *      {
  *              .name = "option-name",
  *              .plugin_alias = "overide-file-name", (optional)
@@ -208,6 +208,11 @@ struct print_arg_string {
         int                     offset;
 };
 
+struct print_arg_bitmask {
+        char                    *bitmask;
+        int                     offset;
+};
+
 struct print_arg_field {
         char                    *name;
         struct format_field     *field;
@@ -274,6 +279,7 @@ enum print_arg_type {
         PRINT_DYNAMIC_ARRAY,
         PRINT_OP,
         PRINT_FUNC,
+        PRINT_BITMASK,
 };
 
 struct print_arg {
@@ -288,6 +294,7 @@ struct print_arg {
                 struct print_arg_hex            hex;
                 struct print_arg_func           func;
                 struct print_arg_string         string;
+                struct print_arg_bitmask        bitmask;
                 struct print_arg_op             op;
                 struct print_arg_dynarray       dynarray;
         };
@@ -354,6 +361,8 @@ enum pevent_func_arg_type {
 
 enum pevent_flag {
         PEVENT_NSEC_OUTPUT              = 1,    /* output in NSECS */
+        PEVENT_DISABLE_SYS_PLUGINS      = 1 << 1,
+        PEVENT_DISABLE_PLUGINS          = 1 << 2,
 };
 
 #define PEVENT_ERRORS                                                         \
@@ -410,9 +419,19 @@ enum pevent_errno {
 
 struct plugin_list;
 
+#define INVALID_PLUGIN_LIST_OPTION      ((char **)((unsigned long)-1))
+
 struct plugin_list *traceevent_load_plugins(struct pevent *pevent);
 void traceevent_unload_plugins(struct plugin_list *plugin_list,
                                struct pevent *pevent);
+char **traceevent_plugin_list_options(void);
+void traceevent_plugin_free_options_list(char **list);
+int traceevent_plugin_add_options(const char *name,
+                                  struct pevent_plugin_option *options);
+void traceevent_plugin_remove_options(struct pevent_plugin_option *options);
+void traceevent_print_plugins(struct trace_seq *s,
+                              const char *prefix, const char *suffix,
+                              const struct plugin_list *list);
 
 struct cmdline;
 struct cmdline_list;
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index 0c8bf6780e4d..136162c03af1 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -18,6 +18,7 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
+#include <stdio.h>
 #include <string.h>
 #include <dlfcn.h>
 #include <stdlib.h>
@@ -30,12 +31,207 @@
 
 #define LOCAL_PLUGIN_DIR ".traceevent/plugins"
 
+static struct registered_plugin_options {
+        struct registered_plugin_options        *next;
+        struct pevent_plugin_option             *options;
+} *registered_options;
+
+static struct trace_plugin_options {
+        struct trace_plugin_options     *next;
+        char                            *plugin;
+        char                            *option;
+        char                            *value;
+} *trace_plugin_options;
+
 struct plugin_list {
         struct plugin_list      *next;
         char                    *name;
         void                    *handle;
 };
 
+/**
+ * traceevent_plugin_list_options - get list of plugin options
+ *
+ * Returns an array of char strings that list the currently registered
+ * plugin options in the format of <plugin>:<option>. This list can be
+ * used by toggling the option.
+ *
+ * Returns NULL if there's no options registered. On error it returns
+ * INVALID_PLUGIN_LIST_OPTION
+ *
+ * Must be freed with traceevent_plugin_free_options_list().
+ */
+char **traceevent_plugin_list_options(void)
+{
+        struct registered_plugin_options *reg;
+        struct pevent_plugin_option *op;
+        char **list = NULL;
+        char *name;
+        int count = 0;
+
+        for (reg = registered_options; reg; reg = reg->next) {
+                for (op = reg->options; op->name; op++) {
+                        char *alias = op->plugin_alias ? op->plugin_alias : op->file;
+                        char **temp = list;
+
+                        name = malloc(strlen(op->name) + strlen(alias) + 2);
+                        if (!name)
+                                goto err;
+
+                        sprintf(name, "%s:%s", alias, op->name);
+                        list = realloc(list, count + 2);
+                        if (!list) {
+                                list = temp;
+                                free(name);
+                                goto err;
+                        }
+                        list[count++] = name;
+                        list[count] = NULL;
+                }
+        }
+        return list;
+
+ err:
+        while (--count >= 0)
+                free(list[count]);
+        free(list);
+
+        return INVALID_PLUGIN_LIST_OPTION;
+}
+
+void traceevent_plugin_free_options_list(char **list)
+{
+        int i;
+
+        if (!list)
+                return;
+
+        if (list == INVALID_PLUGIN_LIST_OPTION)
+                return;
+
+        for (i = 0; list[i]; i++)
+                free(list[i]);
+
+        free(list);
+}
+
+static int
+update_option(const char *file, struct pevent_plugin_option *option)
+{
+        struct trace_plugin_options *op;
+        char *plugin;
+
+        if (option->plugin_alias) {
+                plugin = strdup(option->plugin_alias);
+                if (!plugin)
+                        return -1;
+        } else {
+                char *p;
+                plugin = strdup(file);
+                if (!plugin)
+                        return -1;
+                p = strstr(plugin, ".");
+                if (p)
+                        *p = '\0';
+        }
+
+        /* first look for named options */
+        for (op = trace_plugin_options; op; op = op->next) {
+                if (!op->plugin)
+                        continue;
+                if (strcmp(op->plugin, plugin) != 0)
+                        continue;
+                if (strcmp(op->option, option->name) != 0)
+                        continue;
+
+                option->value = op->value;
+                option->set ^= 1;
+                goto out;
+        }
+
+        /* first look for unnamed options */
+        for (op = trace_plugin_options; op; op = op->next) {
+                if (op->plugin)
+                        continue;
+                if (strcmp(op->option, option->name) != 0)
+                        continue;
+
+                option->value = op->value;
+                option->set ^= 1;
+                break;
+        }
+
+ out:
+        free(plugin);
+        return 0;
+}
+
+/**
+ * traceevent_plugin_add_options - Add a set of options by a plugin
+ * @name: The name of the plugin adding the options
+ * @options: The set of options being loaded
+ *
+ * Sets the options with the values that have been added by user.
+ */
+int traceevent_plugin_add_options(const char *name,
+                                  struct pevent_plugin_option *options)
+{
+        struct registered_plugin_options *reg;
+
+        reg = malloc(sizeof(*reg));
+        if (!reg)
+                return -1;
+        reg->next = registered_options;
+        reg->options = options;
+        registered_options = reg;
+
+        while (options->name) {
+                update_option(name, options);
+                options++;
+        }
+        return 0;
+}
+
+/**
+ * traceevent_plugin_remove_options - remove plugin options that were registered
+ * @options: Options to removed that were registered with traceevent_plugin_add_options
+ */
+void traceevent_plugin_remove_options(struct pevent_plugin_option *options)
+{
+        struct registered_plugin_options **last;
+        struct registered_plugin_options *reg;
+
+        for (last = &registered_options; *last; last = &(*last)->next) {
+                if ((*last)->options == options) {
+                        reg = *last;
+                        *last = reg->next;
+                        free(reg);
+                        return;
+                }
+        }
+}
+
+/**
+ * traceevent_print_plugins - print out the list of plugins loaded
+ * @s: the trace_seq descripter to write to
+ * @prefix: The prefix string to add before listing the option name
+ * @suffix: The suffix string ot append after the option name
+ * @list: The list of plugins (usually returned by traceevent_load_plugins()
+ *
+ * Writes to the trace_seq @s the list of plugins (files) that is
+ * returned by traceevent_load_plugins(). Use @prefix and @suffix for formating:
+ * @prefix = "  ", @suffix = "\n".
+ */
+void traceevent_print_plugins(struct trace_seq *s,
+                              const char *prefix, const char *suffix,
+                              const struct plugin_list *list)
+{
+        while (list) {
+                trace_seq_printf(s, "%s%s%s", prefix, list->name, suffix);
+                list = list->next;
+        }
+}
+
 static void
 load_plugin(struct pevent *pevent, const char *path,
             const char *file, void *data)
@@ -148,12 +344,17 @@ load_plugins(struct pevent *pevent, const char *suffix,
         char *path;
         char *envdir;
 
+        if (pevent->flags & PEVENT_DISABLE_PLUGINS)
+                return;
+
         /*
          * If a system plugin directory was defined,
          * check that first.
          */
 #ifdef PLUGIN_DIR
-        load_plugins_dir(pevent, suffix, PLUGIN_DIR, load_plugin, data);
+        if (!(pevent->flags & PEVENT_DISABLE_SYS_PLUGINS))
+                load_plugins_dir(pevent, suffix, PLUGIN_DIR,
+                                 load_plugin, data);
 #endif
 
         /*
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index 80ba4ff1fe84..a00ec190821a 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -33,6 +33,29 @@ static int cpus = -1;
 
 #define STK_BLK 10
 
+struct pevent_plugin_option plugin_options[] =
+{
+        {
+                .name = "parent",
+                .plugin_alias = "ftrace",
+                .description =
+                "Print parent of functions for function events",
+        },
+        {
+                .name = "indent",
+                .plugin_alias = "ftrace",
+                .description =
+                "Try to show function call indents, based on parents",
+                .set = 1,
+        },
+        {
+                .name = NULL,
+        }
+};
+
+static struct pevent_plugin_option *ftrace_parent = &plugin_options[0];
+static struct pevent_plugin_option *ftrace_indent = &plugin_options[1];
+
 static void add_child(struct func_stack *stack, const char *child, int pos)
 {
         int i;
@@ -119,7 +142,8 @@ static int function_handler(struct trace_seq *s, struct pevent_record *record,
 
         parent = pevent_find_function(pevent, pfunction);
 
-        index = add_and_get_index(parent, func, record->cpu);
+        if (parent && ftrace_indent->set)
+                index = add_and_get_index(parent, func, record->cpu);
 
         trace_seq_printf(s, "%*s", index*3, "");
 
@@ -128,11 +152,13 @@ static int function_handler(struct trace_seq *s, struct pevent_record *record,
         else
                 trace_seq_printf(s, "0x%llx", function);
 
-        trace_seq_printf(s, " <-- ");
-        if (parent)
-                trace_seq_printf(s, "%s", parent);
-        else
-                trace_seq_printf(s, "0x%llx", pfunction);
+        if (ftrace_parent->set) {
+                trace_seq_printf(s, " <-- ");
+                if (parent)
+                        trace_seq_printf(s, "%s", parent);
+                else
+                        trace_seq_printf(s, "0x%llx", pfunction);
+        }
 
         return 0;
 }
@@ -141,6 +167,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
 {
         pevent_register_event_handler(pevent, -1, "ftrace", "function",
                                       function_handler, NULL);
+
+        traceevent_plugin_add_options("ftrace", plugin_options);
+
         return 0;
 }
 
@@ -157,6 +186,8 @@ void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
                 free(fstack[i].stack);
         }
 
+        traceevent_plugin_remove_options(plugin_options);
+
         free(fstack);
         fstack = NULL;
         cpus = -1;
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index cefdf430d1b4..d2b59af62bc0 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -117,6 +117,22 @@ OPTIONS
         By default, every sort keys not specified in -F will be appended
         automatically.
 
+        If --mem-mode option is used, following sort keys are also available
+        (incompatible with --branch-stack):
+        symbol_daddr, dso_daddr, locked, tlb, mem, snoop, dcacheline.
+
+        - symbol_daddr: name of data symbol being executed on at the time of sample
+        - dso_daddr: name of library or module containing the data being executed
+        on at the time of sample
+        - locked: whether the bus was locked at the time of sample
+        - tlb: type of tlb access for the data at the time of sample
+        - mem: type of memory access for the data at the time of sample
+        - snoop: type of snoop (if any) for the data at the time of sample
+        - dcacheline: the cacheline the data address is on at the time of sample
+
+        And default sort keys are changed to local_weight, mem, sym, dso,
+        symbol_daddr, dso_daddr, snoop, tlb, locked, see '--mem-mode'.
+
 -p::
 --parent=<regex>::
         A regex filter to identify parent. The parent is a caller of this
@@ -260,6 +276,13 @@ OPTIONS
         Demangle symbol names to human readable form. It's enabled by default,
         disable with --no-demangle.
 
+--mem-mode::
+        Use the data addresses of samples in addition to instruction addresses
+        to build the histograms.  To generate meaningful output, the perf.data
+        file must have been obtained using perf record -d -W and using a
+        special event -e cpu/mem-loads/ or -e cpu/mem-stores/. See
+        'perf mem' for simpler access.
+
 --percent-limit::
         Do not show entries which have an overhead under that percent.
         (Default: 0).
diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt
index bc5990c33dc0..5e0f986dff38 100644
--- a/tools/perf/Documentation/perf-timechart.txt
+++ b/tools/perf/Documentation/perf-timechart.txt
@@ -43,27 +43,6 @@ TIMECHART OPTIONS
 
 --symfs=<directory>::
         Look for files with symbols relative to this directory.
-
-EXAMPLES
---------
-
-$ perf timechart record git pull
-
-  [ perf record: Woken up 13 times to write data ]
-  [ perf record: Captured and wrote 4.253 MB perf.data (~185801 samples) ]
-
-$ perf timechart
-
-  Written 10.2 seconds of trace to output.svg.
-
-Record system-wide timechart:
-
-  $ perf timechart record
-
-  then generate timechart and highlight 'gcc' tasks:
-
-  $ perf timechart --highlight gcc
-
 -n::
 --proc-num::
         Print task info for at least given number of tasks.
@@ -88,6 +67,26 @@ RECORD OPTIONS
 --callchain::
         Do call-graph (stack chain/backtrace) recording
 
+EXAMPLES
+--------
+
+$ perf timechart record git pull
+
+  [ perf record: Woken up 13 times to write data ]
+  [ perf record: Captured and wrote 4.253 MB perf.data (~185801 samples) ]
+
+$ perf timechart
+
+  Written 10.2 seconds of trace to output.svg.
+
+Record system-wide timechart:
+
+  $ perf timechart record
+
+  then generate timechart and highlight 'gcc' tasks:
+
+  $ perf timechart --highlight gcc
+
 SEE ALSO
 --------
 linkperf:perf-record[1]
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index ae20edfcc3f7..9670a16fa577 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -819,15 +819,15 @@ TAG_FOLDERS= . ../lib/traceevent ../lib/api ../lib/symbol
 TAG_FILES= ../../include/uapi/linux/perf_event.h
 
 TAGS:
-        $(RM) TAGS
+        $(QUIET_GEN)$(RM) TAGS; \
         $(FIND) $(TAG_FOLDERS) -name '*.[hcS]' -print | xargs etags -a $(TAG_FILES)
 
 tags:
-        $(RM) tags
+        $(QUIET_GEN)$(RM) tags; \
         $(FIND) $(TAG_FOLDERS) -name '*.[hcS]' -print | xargs ctags -a $(TAG_FILES)
 
 cscope:
-        $(RM) cscope*
+        $(QUIET_GEN)$(RM) cscope*; \
         $(FIND) $(TAG_FOLDERS) -name '*.[hcS]' -print | xargs cscope -b $(TAG_FILES)
 
 ### Detect prefix changes
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 6a3af0013d68..16c7c11ad06e 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -72,7 +72,7 @@ static int perf_event__repipe_attr(struct perf_tool *tool,
         if (ret)
                 return ret;
 
-        if (&inject->output.is_pipe)
+        if (!inject->output.is_pipe)
                 return 0;
 
         return perf_event__repipe_synth(tool, event);
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index cdcd4eb3a57d..c63fa2925075 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -288,6 +288,13 @@ static void cleanup_params(void)
         memset(&params, 0, sizeof(params));
 }
 
+static void pr_err_with_code(const char *msg, int err)
+{
+        pr_err("%s", msg);
+        pr_debug(" Reason: %s (Code: %d)", strerror(-err), err);
+        pr_err("\n");
+}
+
 static int
 __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 {
@@ -379,7 +386,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
                 }
                 ret = parse_probe_event_argv(argc, argv);
                 if (ret < 0) {
-                        pr_err("  Error: Parse Error.  (%d)\n", ret);
+                        pr_err_with_code("  Error: Command Parse Error.", ret);
                         return ret;
                 }
         }
@@ -419,8 +426,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
                 }
                 ret = show_perf_probe_events();
                 if (ret < 0)
-                        pr_err("  Error: Failed to show event list. (%d)\n",
-                               ret);
+                        pr_err_with_code("  Error: Failed to show event list.", ret);
                 return ret;
         }
         if (params.show_funcs) {
@@ -445,8 +451,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
                 strfilter__delete(params.filter);
                 params.filter = NULL;
                 if (ret < 0)
-                        pr_err("  Error: Failed to show functions."
-                               " (%d)\n", ret);
+                        pr_err_with_code("  Error: Failed to show functions.", ret);
                 return ret;
         }
 
@@ -464,7 +469,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 
                 ret = show_line_range(&params.line_range, params.target);
                 if (ret < 0)
-                        pr_err("  Error: Failed to show lines. (%d)\n", ret);
+                        pr_err_with_code("  Error: Failed to show lines.", ret);
                 return ret;
         }
         if (params.show_vars) {
@@ -485,7 +490,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
                 strfilter__delete(params.filter);
                 params.filter = NULL;
                 if (ret < 0)
-                        pr_err("  Error: Failed to show vars. (%d)\n", ret);
+                        pr_err_with_code("  Error: Failed to show vars.", ret);
                 return ret;
         }
 #endif
@@ -493,7 +498,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
         if (params.dellist) {
                 ret = del_perf_probe_events(params.dellist);
                 if (ret < 0) {
-                        pr_err("  Error: Failed to delete events. (%d)\n", ret);
+                        pr_err_with_code("  Error: Failed to delete events.", ret);
                         return ret;
                 }
         }
@@ -504,7 +509,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
                                             params.target,
                                             params.force_add);
                 if (ret < 0) {
-                        pr_err("  Error: Failed to add events. (%d)\n", ret);
+                        pr_err_with_code("  Error: Failed to add events.", ret);
                         return ret;
                 }
         }
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 4f100b54ba8b..f30ac5e5d271 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -299,7 +299,11 @@ else
       NO_LIBUNWIND := 1
       NO_LIBDW_DWARF_UNWIND := 1
     else
-      msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
+      ifneq ($(filter s% -static%,$(LDFLAGS),),)
+        msg := $(error No static glibc found, please install glibc-static);
+      else
+        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
+      endif
     endif
   else
     ifndef NO_LIBDW_DWARF_UNWIND
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 78f7b920e548..95c58fc15284 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -458,6 +458,7 @@ int main(int argc, const char **argv)
 
         /* The page_size is placed in util object. */
         page_size = sysconf(_SC_PAGE_SIZE);
+        cacheline_size = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);
 
         cmd = perf_extract_argv0_path(argv[0]);
         if (!cmd)
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 802e3cd50f6f..6f8b01bc6033 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -3,6 +3,8 @@
  *
  * Builtin regression testing command: ever growing number of sanity tests
  */
+#include <unistd.h>
+#include <string.h>
 #include "builtin.h"
 #include "intlist.h"
 #include "tests.h"
@@ -50,10 +52,18 @@ static struct test {
                 .func = test__pmu,
         },
         {
-                .desc = "Test dso data interface",
+                .desc = "Test dso data read",
                 .func = test__dso_data,
         },
         {
+                .desc = "Test dso data cache",
+                .func = test__dso_data_cache,
+        },
+        {
+                .desc = "Test dso data reopen",
+                .func = test__dso_data_reopen,
+        },
+        {
                 .desc = "roundtrip evsel->name check",
                 .func = test__perf_evsel__roundtrip_name_test,
         },
@@ -172,6 +182,34 @@ static bool perf_test__matches(int curr, int argc, const char *argv[])
         return false;
 }
 
+static int run_test(struct test *test)
+{
+        int status, err = -1, child = fork();
+
+        if (child < 0) {
+                pr_err("failed to fork test: %s\n", strerror(errno));
+                return -1;
+        }
+
+        if (!child) {
+                pr_debug("test child forked, pid %d\n", getpid());
+                err = test->func();
+                exit(err);
+        }
+
+        wait(&status);
+
+        if (WIFEXITED(status)) {
+                err = WEXITSTATUS(status);
+                pr_debug("test child finished with %d\n", err);
+        } else if (WIFSIGNALED(status)) {
+                err = -1;
+                pr_debug("test child interrupted\n");
+        }
+
+        return err;
+}
+
 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
 {
         int i = 0;
@@ -200,7 +238,7 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
                 }
 
                 pr_debug("\n--- start ---\n");
-                err = tests[curr].func();
+                err = run_test(&tests[curr]);
                 pr_debug("---- end ----\n%s:", tests[curr].desc);
 
                 switch (err) {
diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c
index 3e6cb171e3d3..630808cd7cc2 100644
--- a/tools/perf/tests/dso-data.c
+++ b/tools/perf/tests/dso-data.c
@@ -1,22 +1,27 @@
-#include "util.h"
-
 #include <stdlib.h>
 #include <linux/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <string.h>
-
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <api/fs/fs.h>
+#include "util.h"
 #include "machine.h"
 #include "symbol.h"
 #include "tests.h"
 
 static char *test_file(int size)
 {
-        static char buf_templ[] = "/tmp/test-XXXXXX";
+#define TEMPL "/tmp/perf-test-XXXXXX"
+        static char buf_templ[sizeof(TEMPL)];
         char *templ = buf_templ;
         int fd, i;
         unsigned char *buf;
 
+        strcpy(buf_templ, TEMPL);
+#undef TEMPL
+
         fd = mkstemp(templ);
         if (fd < 0) {
                 perror("mkstemp failed");
@@ -150,3 +155,204 @@ int test__dso_data(void)
         unlink(file);
         return 0;
 }
+
+static long open_files_cnt(void)
+{
+        char path[PATH_MAX];
+        struct dirent *dent;
+        DIR *dir;
+        long nr = 0;
+
+        scnprintf(path, PATH_MAX, "%s/self/fd", procfs__mountpoint());
+        pr_debug("fd path: %s\n", path);
+
+        dir = opendir(path);
+        TEST_ASSERT_VAL("failed to open fd directory", dir);
+
+        while ((dent = readdir(dir)) != NULL) {
+                if (!strcmp(dent->d_name, ".") ||
+                    !strcmp(dent->d_name, ".."))
+                        continue;
+
+                nr++;
+        }
+
+        closedir(dir);
+        return nr - 1;
+}
+
+static struct dso **dsos;
+
+static int dsos__create(int cnt, int size)
+{
+        int i;
+
+        dsos = malloc(sizeof(dsos) * cnt);
+        TEST_ASSERT_VAL("failed to alloc dsos array", dsos);
+
+        for (i = 0; i < cnt; i++) {
+                char *file;
+
+                file = test_file(size);
+                TEST_ASSERT_VAL("failed to get dso file", file);
+
+                dsos[i] = dso__new(file);
+                TEST_ASSERT_VAL("failed to get dso", dsos[i]);
+        }
+
+        return 0;
+}
+
+static void dsos__delete(int cnt)
+{
+        int i;
+
+        for (i = 0; i < cnt; i++) {
+                struct dso *dso = dsos[i];
+
+                unlink(dso->name);
+                dso__delete(dso);
+        }
+
+        free(dsos);
+}
+
+static int set_fd_limit(int n)
+{
+        struct rlimit rlim;
+
+        if (getrlimit(RLIMIT_NOFILE, &rlim))
+                return -1;
+
+        pr_debug("file limit %ld, new %d\n", (long) rlim.rlim_cur, n);
+
+        rlim.rlim_cur = n;
+        return setrlimit(RLIMIT_NOFILE, &rlim);
+}
+
+int test__dso_data_cache(void)
+{
+        struct machine machine;
+        long nr_end, nr = open_files_cnt();
+        int dso_cnt, limit, i, fd;
+
+        memset(&machine, 0, sizeof(machine));
+
+        /* set as system limit */
+        limit = nr * 4;
+        TEST_ASSERT_VAL("failed to set file limit", !set_fd_limit(limit));
+
+        /* and this is now our dso open FDs limit + 1 extra */
+        dso_cnt = limit / 2 + 1;
+        TEST_ASSERT_VAL("failed to create dsos\n",
+                !dsos__create(dso_cnt, TEST_FILE_SIZE));
+
+        for (i = 0; i < (dso_cnt - 1); i++) {
+                struct dso *dso = dsos[i];
+
+                /*
+                 * Open dsos via dso__data_fd or dso__data_read_offset.
+                 * Both opens the data file and keep it open.
+                 */
+                if (i % 2) {
+                        fd = dso__data_fd(dso, &machine);
+                        TEST_ASSERT_VAL("failed to get fd", fd > 0);
+                } else {
+                        #define BUFSIZE 10
+                        u8 buf[BUFSIZE];
+                        ssize_t n;
+
+                        n = dso__data_read_offset(dso, &machine, 0, buf, BUFSIZE);
+                        TEST_ASSERT_VAL("failed to read dso", n == BUFSIZE);
+                }
+        }
+
+        /* open +1 dso over the allowed limit */
+        fd = dso__data_fd(dsos[i], &machine);
+        TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+        /* should force the first one to be closed */
+        TEST_ASSERT_VAL("failed to close dsos[0]", dsos[0]->data.fd == -1);
+
+        /* cleanup everything */
+        dsos__delete(dso_cnt);
+
+        /* Make sure we did not leak any file descriptor. */
+        nr_end = open_files_cnt();
+        pr_debug("nr start %ld, nr stop %ld\n", nr, nr_end);
+        TEST_ASSERT_VAL("failed leadking files", nr == nr_end);
+        return 0;
+}
+
+int test__dso_data_reopen(void)
+{
+        struct machine machine;
+        long nr_end, nr = open_files_cnt();
+        int fd, fd_extra;
+
+#define dso_0 (dsos[0])
+#define dso_1 (dsos[1])
+#define dso_2 (dsos[2])
+
+        memset(&machine, 0, sizeof(machine));
+
+        /*
+         * Test scenario:
+         * - create 3 dso objects
+         * - set process file descriptor limit to current
+         *   files count + 3
+         * - test that the first dso gets closed when we
+         *   reach the files count limit
+         */
+
+        /* Make sure we are able to open 3 fds anyway */
+        TEST_ASSERT_VAL("failed to set file limit",
+                        !set_fd_limit((nr + 3)));
+
+        TEST_ASSERT_VAL("failed to create dsos\n", !dsos__create(3, TEST_FILE_SIZE));
+
+        /* open dso_0 */
+        fd = dso__data_fd(dso_0, &machine);
+        TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+        /* open dso_1 */
+        fd = dso__data_fd(dso_1, &machine);
+        TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+        /*
+         * open extra file descriptor and we just
+         * reached the files count limit
+         */
+        fd_extra = open("/dev/null", O_RDONLY);
+        TEST_ASSERT_VAL("failed to open extra fd", fd_extra > 0);
+
+        /* open dso_2 */
+        fd = dso__data_fd(dso_2, &machine);
+        TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+        /*
+         * dso_0 should get closed, because we reached
+         * the file descriptor limit
+         */
+        TEST_ASSERT_VAL("failed to close dso_0", dso_0->data.fd == -1);
+
+        /* open dso_0 */
+        fd = dso__data_fd(dso_0, &machine);
+        TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+        /*
+         * dso_1 should get closed, because we reached
+         * the file descriptor limit
+         */
+        TEST_ASSERT_VAL("failed to close dso_1", dso_1->data.fd == -1);
+
+        /* cleanup everything */
+        close(fd_extra);
+        dsos__delete(3);
+
+        /* Make sure we did not leak any file descriptor. */
+        nr_end = open_files_cnt();
+        pr_debug("nr start %ld, nr stop %ld\n", nr, nr_end);
+        TEST_ASSERT_VAL("failed leadking files", nr == nr_end);
+        return 0;
+}
diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c
index 108f0cd49f4e..96adb730b744 100644
--- a/tools/perf/tests/dwarf-unwind.c
+++ b/tools/perf/tests/dwarf-unwind.c
@@ -15,7 +15,7 @@ static int mmap_handler(struct perf_tool *tool __maybe_unused,
                         struct perf_sample *sample __maybe_unused,
                         struct machine *machine)
 {
-        return machine__process_mmap_event(machine, event, NULL);
+        return machine__process_mmap2_event(machine, event, NULL);
 }
 
 static int init_live_machine(struct machine *machine)
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 2f92d6e7ee00..69a71ff84e01 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -205,8 +205,7 @@ $(run):
         ( eval $$cmd ) >> $@ 2>&1; \
         echo "  test: $(call test,$@)" >> $@ 2>&1; \
         $(call test,$@) && \
-        rm -f $@ \
-        rm -rf $$TMP_DEST
+        rm -rf $@ $$TMP_DEST || (cat $@ ; false)
 
 $(run_O):
         $(call clean)
@@ -217,9 +216,7 @@ $(run_O):
         ( eval $$cmd ) >> $@ 2>&1 && \
         echo "  test: $(call test_O,$@)" >> $@ 2>&1; \
         $(call test_O,$@) && \
-        rm -f $@ && \
-        rm -rf $$TMP_O \
-        rm -rf $$TMP_DEST
+        rm -rf $@ $$TMP_O $$TMP_DEST || (cat $@ ; false)
 
 tarpkg:
         @cmd="$(PERF)/tests/perf-targz-src-pkg $(PERF)"; \
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 022bb68fd9c7..ed64790a395f 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -28,6 +28,8 @@ int test__syscall_open_tp_fields(void);
 int test__pmu(void);
 int test__attr(void);
 int test__dso_data(void);
+int test__dso_data_cache(void);
+int test__dso_data_reopen(void);
 int test__parse_events(void);
 int test__hists_link(void);
 int test__python_use(void);
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 64453d63b971..819f10414f08 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -1,3 +1,6 @@
+#include <asm/bug.h>
+#include <sys/time.h>
+#include <sys/resource.h>
 #include "symbol.h"
 #include "dso.h"
 #include "machine.h"
@@ -136,7 +139,48 @@ int dso__read_binary_type_filename(const struct dso *dso,
         return ret;
 }
 
-static int open_dso(struct dso *dso, struct machine *machine)
+/*
+ * Global list of open DSOs and the counter.
+ */
+static LIST_HEAD(dso__data_open);
+static long dso__data_open_cnt;
+
+static void dso__list_add(struct dso *dso)
+{
+        list_add_tail(&dso->data.open_entry, &dso__data_open);
+        dso__data_open_cnt++;
+}
+
+static void dso__list_del(struct dso *dso)
+{
+        list_del(&dso->data.open_entry);
+        WARN_ONCE(dso__data_open_cnt <= 0,
+                  "DSO data fd counter out of bounds.");
+        dso__data_open_cnt--;
+}
+
+static void close_first_dso(void);
+
+static int do_open(char *name)
+{
+        int fd;
+
+        do {
+                fd = open(name, O_RDONLY);
+                if (fd >= 0)
+                        return fd;
+
+                pr_debug("dso open failed, mmap: %s\n", strerror(errno));
+                if (!dso__data_open_cnt || errno != EMFILE)
+                        break;
+
+                close_first_dso();
+        } while (1);
+
+        return -1;
+}
+
+static int __open_dso(struct dso *dso, struct machine *machine)
 {
         int fd;
         char *root_dir = (char *)"";
@@ -154,11 +198,130 @@ static int open_dso(struct dso *dso, struct machine *machine)
                 return -EINVAL;
         }
 
-        fd = open(name, O_RDONLY);
+        fd = do_open(name);
         free(name);
         return fd;
 }
 
+static void check_data_close(void);
+
+/**
+ * dso_close - Open DSO data file
+ * @dso: dso object
+ *
+ * Open @dso's data file descriptor and updates
+ * list/count of open DSO objects.
+ */
+static int open_dso(struct dso *dso, struct machine *machine)
+{
+        int fd = __open_dso(dso, machine);
+
+        if (fd > 0) {
+                dso__list_add(dso);
+                /*
+                 * Check if we crossed the allowed number
+                 * of opened DSOs and close one if needed.
+                 */
+                check_data_close();
+        }
+
+        return fd;
+}
+
+static void close_data_fd(struct dso *dso)
+{
+        if (dso->data.fd >= 0) {
+                close(dso->data.fd);
+                dso->data.fd = -1;
+                dso->data.file_size = 0;
+                dso__list_del(dso);
+        }
+}
+
+/**
+ * dso_close - Close DSO data file
+ * @dso: dso object
+ *
+ * Close @dso's data file descriptor and updates
+ * list/count of open DSO objects.
+ */
+static void close_dso(struct dso *dso)
+{
+        close_data_fd(dso);
+}
+
+static void close_first_dso(void)
+{
+        struct dso *dso;
+
+        dso = list_first_entry(&dso__data_open, struct dso, data.open_entry);
+        close_dso(dso);
+}
+
+static rlim_t get_fd_limit(void)
+{
+        struct rlimit l;
+        rlim_t limit = 0;
+
+        /* Allow half of the current open fd limit. */
+        if (getrlimit(RLIMIT_NOFILE, &l) == 0) {
+                if (l.rlim_cur == RLIM_INFINITY)
+                        limit = l.rlim_cur;
+                else
+                        limit = l.rlim_cur / 2;
+        } else {
+                pr_err("failed to get fd limit\n");
+                limit = 1;
+        }
+
+        return limit;
+}
+
+static bool may_cache_fd(void)
+{
+        static rlim_t limit;
+
+        if (!limit)
+                limit = get_fd_limit();
+
+        if (limit == RLIM_INFINITY)
+                return true;
+
+        return limit > (rlim_t) dso__data_open_cnt;
+}
+
+/*
+ * Check and close LRU dso if we crossed allowed limit
+ * for opened dso file descriptors. The limit is half
+ * of the RLIMIT_NOFILE files opened.
+*/
+static void check_data_close(void)
+{
+        bool cache_fd = may_cache_fd();
+
+        if (!cache_fd)
+                close_first_dso();
+}
+
+/**
+ * dso__data_close - Close DSO data file
+ * @dso: dso object
+ *
+ * External interface to close @dso's data file descriptor.
+ */
+void dso__data_close(struct dso *dso)
+{
+        close_dso(dso);
+}
+
+/**
+ * dso__data_fd - Get dso's data file descriptor
+ * @dso: dso object
+ * @machine: machine object
+ *
+ * External interface to find dso's file, open it and
+ * returns file descriptor.
+ */
 int dso__data_fd(struct dso *dso, struct machine *machine)
 {
         enum dso_binary_type binary_type_data[] = {
@@ -168,8 +331,13 @@ int dso__data_fd(struct dso *dso, struct machine *machine)
         };
         int i = 0;
 
-        if (dso->binary_type != DSO_BINARY_TYPE__NOT_FOUND)
-                return open_dso(dso, machine);
+        if (dso->data.fd >= 0)
+                return dso->data.fd;
+
+        if (dso->binary_type != DSO_BINARY_TYPE__NOT_FOUND) {
+                dso->data.fd = open_dso(dso, machine);
+                return dso->data.fd;
+        }
 
         do {
                 int fd;
@@ -178,7 +346,7 @@ int dso__data_fd(struct dso *dso, struct machine *machine)
 
                 fd = open_dso(dso, machine);
                 if (fd >= 0)
-                        return fd;
+                        return dso->data.fd = fd;
 
         } while (dso->binary_type != DSO_BINARY_TYPE__NOT_FOUND);
 
@@ -260,16 +428,10 @@ dso_cache__memcpy(struct dso_cache *cache, u64 offset,
 }
 
 static ssize_t
-dso_cache__read(struct dso *dso, struct machine *machine,
-                 u64 offset, u8 *data, ssize_t size)
+dso_cache__read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
 {
         struct dso_cache *cache;
         ssize_t ret;
-        int fd;
-
-        fd = dso__data_fd(dso, machine);
-        if (fd < 0)
-                return -1;
 
         do {
                 u64 cache_offset;
@@ -283,16 +445,16 @@ dso_cache__read(struct dso *dso, struct machine *machine,
                 cache_offset = offset & DSO__DATA_CACHE_MASK;
                 ret = -EINVAL;
 
-                if (-1 == lseek(fd, cache_offset, SEEK_SET))
+                if (-1 == lseek(dso->data.fd, cache_offset, SEEK_SET))
                         break;
 
-                ret = read(fd, cache->data, DSO__DATA_CACHE_SIZE);
+                ret = read(dso->data.fd, cache->data, DSO__DATA_CACHE_SIZE);
                 if (ret <= 0)
                         break;
 
                 cache->offset = cache_offset;
                 cache->size   = ret;
-                dso_cache__insert(&dso->cache, cache);
+                dso_cache__insert(&dso->data.cache, cache);
 
                 ret = dso_cache__memcpy(cache, offset, data, size);
 
@@ -301,24 +463,27 @@ dso_cache__read(struct dso *dso, struct machine *machine,
         if (ret <= 0)
                 free(cache);
 
-        close(fd);
         return ret;
 }
 
-static ssize_t dso_cache_read(struct dso *dso, struct machine *machine,
-                              u64 offset, u8 *data, ssize_t size)
+static ssize_t dso_cache_read(struct dso *dso, u64 offset,
+                              u8 *data, ssize_t size)
 {
         struct dso_cache *cache;
 
-        cache = dso_cache__find(&dso->cache, offset);
+        cache = dso_cache__find(&dso->data.cache, offset);
         if (cache)
                 return dso_cache__memcpy(cache, offset, data, size);
         else
-                return dso_cache__read(dso, machine, offset, data, size);
+                return dso_cache__read(dso, offset, data, size);
 }
 
-ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
-                              u64 offset, u8 *data, ssize_t size)
+/*
+ * Reads and caches dso data DSO__DATA_CACHE_SIZE size chunks
+ * in the rb_tree. Any read to already cached data is served
+ * by cached data.
+ */
+static ssize_t cached_read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
 {
         ssize_t r = 0;
         u8 *p = data;
@@ -326,7 +491,7 @@ ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
         do {
                 ssize_t ret;
 
-                ret = dso_cache_read(dso, machine, offset, p, size);
+                ret = dso_cache_read(dso, offset, p, size);
                 if (ret < 0)
                         return ret;
 
@@ -346,6 +511,67 @@ ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
         return r;
 }
 
+static int data_file_size(struct dso *dso)
+{
+        struct stat st;
+
+        if (!dso->data.file_size) {
+                if (fstat(dso->data.fd, &st)) {
+                        pr_err("dso mmap failed, fstat: %s\n", strerror(errno));
+                        return -1;
+                }
+                dso->data.file_size = st.st_size;
+        }
+
+        return 0;
+}
+
+static ssize_t data_read_offset(struct dso *dso, u64 offset,
+                                u8 *data, ssize_t size)
+{
+        if (data_file_size(dso))
+                return -1;
+
+        /* Check the offset sanity. */
+        if (offset > dso->data.file_size)
+                return -1;
+
+        if (offset + size < offset)
+                return -1;
+
+        return cached_read(dso, offset, data, size);
+}
+
+/**
+ * dso__data_read_offset - Read data from dso file offset
+ * @dso: dso object
+ * @machine: machine object
+ * @offset: file offset
+ * @data: buffer to store data
+ * @size: size of the @data buffer
+ *
+ * External interface to read data from dso file offset. Open
+ * dso data file and use cached_read to get the data.
+ */
+ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
+                              u64 offset, u8 *data, ssize_t size)
+{
+        if (dso__data_fd(dso, machine) < 0)
+                return -1;
+
+        return data_read_offset(dso, offset, data, size);
+}
+
+/**
+ * dso__data_read_addr - Read data from dso address
+ * @dso: dso object
+ * @machine: machine object
+ * @add: virtual memory address
+ * @data: buffer to store data
+ * @size: size of the @data buffer
+ *
+ * External interface to read data from dso address.
+ */
 ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
                             struct machine *machine, u64 addr,
                             u8 *data, ssize_t size)
@@ -473,7 +699,8 @@ struct dso *dso__new(const char *name)
                 dso__set_short_name(dso, dso->name, false);
                 for (i = 0; i < MAP__NR_TYPES; ++i)
                         dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
-                dso->cache = RB_ROOT;
+                dso->data.cache = RB_ROOT;
+                dso->data.fd = -1;
                 dso->symtab_type = DSO_BINARY_TYPE__NOT_FOUND;
                 dso->binary_type = DSO_BINARY_TYPE__NOT_FOUND;
                 dso->loaded = 0;
@@ -485,6 +712,7 @@ struct dso *dso__new(const char *name)
                 dso->kernel = DSO_TYPE_USER;
                 dso->needs_swap = DSO_SWAP__UNSET;
                 INIT_LIST_HEAD(&dso->node);
+                INIT_LIST_HEAD(&dso->data.open_entry);
         }
 
         return dso;
@@ -506,7 +734,8 @@ void dso__delete(struct dso *dso)
                 dso->long_name_allocated = false;
         }
 
-        dso_cache__free(&dso->cache);
+        dso__data_close(dso);
+        dso_cache__free(&dso->data.cache);
         dso__free_a2l(dso);
         zfree(&dso->symsrc_filename);
         free(dso);
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 38efe95a7fdd..ad553ba257bf 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -76,7 +76,6 @@ struct dso {
         struct list_head node;
         struct rb_root   symbols[MAP__NR_TYPES];
         struct rb_root   symbol_names[MAP__NR_TYPES];
-        struct rb_root   cache;
         void             *a2l;
         char             *symsrc_filename;
         unsigned int     a2l_fails;
@@ -99,6 +98,15 @@ struct dso {
         const char       *long_name;
         u16              long_name_len;
         u16              short_name_len;
+
+        /* dso data file */
+        struct {
+                struct rb_root   cache;
+                int              fd;
+                size_t           file_size;
+                struct list_head open_entry;
+        } data;
+
         char             name[0];
 };
 
@@ -141,7 +149,47 @@ char dso__symtab_origin(const struct dso *dso);
 int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type type,
                                    char *root_dir, char *filename, size_t size);
 
+/*
+ * The dso__data_* external interface provides following functions:
+ *   dso__data_fd
+ *   dso__data_close
+ *   dso__data_read_offset
+ *   dso__data_read_addr
+ *
+ * Please refer to the dso.c object code for each function and
+ * arguments documentation. Following text tries to explain the
+ * dso file descriptor caching.
+ *
+ * The dso__data* interface allows caching of opened file descriptors
+ * to speed up the dso data accesses. The idea is to leave the file
+ * descriptor opened ideally for the whole life of the dso object.
+ *
+ * The current usage of the dso__data_* interface is as follows:
+ *
+ * Get DSO's fd:
+ *   int fd = dso__data_fd(dso, machine);
+ *   USE 'fd' SOMEHOW
+ *
+ * Read DSO's data:
+ *   n = dso__data_read_offset(dso_0, &machine, 0, buf, BUFSIZE);
+ *   n = dso__data_read_addr(dso_0, &machine, 0, buf, BUFSIZE);
+ *
+ * Eventually close DSO's fd:
+ *   dso__data_close(dso);
+ *
+ * It is not necessary to close the DSO object data file. Each time new
+ * DSO data file is opened, the limit (RLIMIT_NOFILE/2) is checked. Once
+ * it is crossed, the oldest opened DSO object is closed.
+ *
+ * The dso__delete function calls close_dso function to ensure the
+ * data file descriptor gets closed/unmapped before the dso object
+ * is freed.
+ *
+ * TODO
+*/
 int dso__data_fd(struct dso *dso, struct machine *machine);
+void dso__data_close(struct dso *dso);
+
 ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
                               u64 offset, u8 *data, ssize_t size);
 ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 65795b835b39..d0281bdfa582 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1,4 +1,5 @@
 #include <linux/types.h>
+#include <sys/mman.h>
 #include "event.h"
 #include "debug.h"
 #include "hist.h"
@@ -178,13 +179,14 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool,
                 return -1;
         }
 
-        event->header.type = PERF_RECORD_MMAP;
+        event->header.type = PERF_RECORD_MMAP2;
 
         while (1) {
                 char bf[BUFSIZ];
                 char prot[5];
                 char execname[PATH_MAX];
                 char anonstr[] = "//anon";
+                unsigned int ino;
                 size_t size;
                 ssize_t n;
 
@@ -195,15 +197,20 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool,
                 strcpy(execname, "");
 
                 /* 00400000-0040c000 r-xp 00000000 fd:01 41038  /bin/cat */
-                n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %*x:%*x %*u %s\n",
-                       &event->mmap.start, &event->mmap.len, prot,
-                       &event->mmap.pgoff,
-                       execname);
+                n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %s\n",
+                       &event->mmap2.start, &event->mmap2.len, prot,
+                       &event->mmap2.pgoff, &event->mmap2.maj,
+                       &event->mmap2.min,
+                       &ino, execname);
+
                 /*
                  * Anon maps don't have the execname.
                  */
-                if (n < 4)
+                if (n < 7)
                         continue;
+
+                event->mmap2.ino = (u64)ino;
+
                 /*
                  * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c
                  */
@@ -212,6 +219,21 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool,
                 else
                         event->header.misc = PERF_RECORD_MISC_GUEST_USER;
 
+                /* map protection and flags bits */
+                event->mmap2.prot = 0;
+                event->mmap2.flags = 0;
+                if (prot[0] == 'r')
+                        event->mmap2.prot |= PROT_READ;
+                if (prot[1] == 'w')
+                        event->mmap2.prot |= PROT_WRITE;
+                if (prot[2] == 'x')
+                        event->mmap2.prot |= PROT_EXEC;
+
+                if (prot[3] == 's')
+                        event->mmap2.flags |= MAP_SHARED;
+                else
+                        event->mmap2.flags |= MAP_PRIVATE;
+
                 if (prot[2] != 'x') {
                         if (!mmap_data || prot[0] != 'r')
                                 continue;
@@ -223,15 +245,15 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool,
                         strcpy(execname, anonstr);
 
                 size = strlen(execname) + 1;
-                memcpy(event->mmap.filename, execname, size);
+                memcpy(event->mmap2.filename, execname, size);
                 size = PERF_ALIGN(size, sizeof(u64));
-                event->mmap.len -= event->mmap.start;
-                event->mmap.header.size = (sizeof(event->mmap) -
-                                        (sizeof(event->mmap.filename) - size));
-                memset(event->mmap.filename + size, 0, machine->id_hdr_size);
-                event->mmap.header.size += machine->id_hdr_size;
-                event->mmap.pid = tgid;
-                event->mmap.tid = pid;
+                event->mmap2.len -= event->mmap.start;
+                event->mmap2.header.size = (sizeof(event->mmap2) -
+                                        (sizeof(event->mmap2.filename) - size));
+                memset(event->mmap2.filename + size, 0, machine->id_hdr_size);
+                event->mmap2.header.size += machine->id_hdr_size;
+                event->mmap2.pid = tgid;
+                event->mmap2.tid = pid;
 
                 if (process(tool, event, &synth_sample, machine) != 0) {
                         rc = -1;
@@ -612,12 +634,15 @@ size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
 {
         return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64
-                           " %02x:%02x %"PRIu64" %"PRIu64"]: %c %s\n",
+                           " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n",
                        event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
                        event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
                        event->mmap2.min, event->mmap2.ino,
                        event->mmap2.ino_generation,
-                       (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
+                       (event->mmap2.prot & PROT_READ) ? 'r' : '-',
+                       (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
+                       (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
+                       (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
                        event->mmap2.filename);
 }
 
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index d970232cb270..e5dd40addb30 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -7,6 +7,7 @@
 #include "../perf.h"
 #include "map.h"
 #include "build-id.h"
+#include "perf_regs.h"
 
 struct mmap_event {
         struct perf_event_header header;
@@ -27,6 +28,8 @@ struct mmap2_event {
         u32 min;
         u64 ino;
         u64 ino_generation;
+        u32 prot;
+        u32 flags;
         char filename[PATH_MAX];
 };
 
@@ -87,6 +90,10 @@ struct regs_dump {
         u64 abi;
         u64 mask;
         u64 *regs;
+
+        /* Cached values/mask filled by first register access. */
+        u64 cache_regs[PERF_REGS_MAX];
+        u64 cache_mask;
 };
 
 struct stack_dump {
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 5c28d82b76c4..8606175fe1e8 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -589,10 +589,10 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
         }
 
         /*
-         * We default some events to a 1 default interval. But keep
+         * We default some events to have a default interval. But keep
          * it a weak assumption overridable by the user.
          */
-        if (!attr->sample_period || (opts->user_freq != UINT_MAX &&
+        if (!attr->sample_period || (opts->user_freq != UINT_MAX ||
                                      opts->user_interval != ULLONG_MAX)) {
                 if (opts->freq) {
                         perf_evsel__set_sample_bit(evsel, PERIOD);
@@ -659,6 +659,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
                 perf_evsel__set_sample_bit(evsel, WEIGHT);
 
         attr->mmap  = track;
+        attr->mmap2 = track && !perf_missing_features.mmap2;
         attr->comm  = track;
 
         if (opts->sample_transaction)
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 5a0a4b2cadc4..30df6187ee02 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -128,6 +128,8 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
                                + unresolved_col_width + 2;
                         hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL,
                                            symlen);
+                        hists__new_col_len(hists, HISTC_MEM_DCACHELINE,
+                                           symlen + 1);
                 } else {
                         symlen = unresolved_col_width + 4 + 2;
                         hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL,
@@ -439,9 +441,10 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
                         .map    = al->map,
                         .sym    = al->sym,
                 },
-                .cpu    = al->cpu,
-                .ip     = al->addr,
-                .level  = al->level,
+                .cpu     = al->cpu,
+                .cpumode = al->cpumode,
+                .ip      = al->addr,
+                .level   = al->level,
                 .stat = {
                         .nr_events = 1,
                         .period = period,
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index d2bf03575d5f..742f49a85725 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -72,6 +72,7 @@ enum hist_column {
         HISTC_MEM_TLB,
         HISTC_MEM_LVL,
         HISTC_MEM_SNOOP,
+        HISTC_MEM_DCACHELINE,
         HISTC_TRANSACTION,
         HISTC_NR_COLS, /* Last entry */
 };
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 7409ac8de51c..0e5fea95d596 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1060,6 +1060,8 @@ int machine__process_mmap2_event(struct machine *machine,
                         event->mmap2.pid, event->mmap2.maj,
                         event->mmap2.min, event->mmap2.ino,
                         event->mmap2.ino_generation,
+                        event->mmap2.prot,
+                        event->mmap2.flags,
                         event->mmap2.filename, type);
 
         if (map == NULL)
@@ -1105,7 +1107,7 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event
 
         map = map__new(&machine->user_dsos, event->mmap.start,
                         event->mmap.len, event->mmap.pgoff,
-                        event->mmap.pid, 0, 0, 0, 0,
+                        event->mmap.pid, 0, 0, 0, 0, 0, 0,
                         event->mmap.filename,
                         type);
 
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 8ccbb32eda25..25c571f4cba6 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -138,7 +138,7 @@ void map__init(struct map *map, enum map_type type,
 
 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
                      u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
-                     u64 ino_gen, char *filename,
+                     u64 ino_gen, u32 prot, u32 flags, char *filename,
                      enum map_type type)
 {
         struct map *map = malloc(sizeof(*map));
@@ -157,6 +157,8 @@ struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
                 map->min = d_min;
                 map->ino = ino;
                 map->ino_generation = ino_gen;
+                map->prot = prot;
+                map->flags = flags;
 
                 if ((anon || no_dso) && type == MAP__FUNCTION) {
                         snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", pid);
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index ae2d45110588..7758c72522ef 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -35,6 +35,8 @@ struct map {
         bool                    referenced;
         bool                    erange_warned;
         u32                     priv;
+        u32                     prot;
+        u32                     flags;
         u64                     pgoff;
         u64                     reloc;
         u32                     maj, min; /* only valid for MMAP2 record */
@@ -118,7 +120,7 @@ void map__init(struct map *map, enum map_type type,
                u64 start, u64 end, u64 pgoff, struct dso *dso);
 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
                      u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
-                     u64 ino_gen,
+                     u64 ino_gen, u32 prot, u32 flags,
                      char *filename, enum map_type type);
 struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
 void map__delete(struct map *map);
diff --git a/tools/perf/util/perf_regs.c b/tools/perf/util/perf_regs.c
index a3539ef30b15..43168fb0d9a2 100644
--- a/tools/perf/util/perf_regs.c
+++ b/tools/perf/util/perf_regs.c
@@ -1,11 +1,15 @@
 #include <errno.h>
 #include "perf_regs.h"
+#include "event.h"
 
 int perf_reg_value(u64 *valp, struct regs_dump *regs, int id)
 {
         int i, idx = 0;
         u64 mask = regs->mask;
 
+        if (regs->cache_mask & (1 << id))
+                goto out;
+
         if (!(mask & (1 << id)))
                 return -EINVAL;
 
@@ -14,6 +18,10 @@ int perf_reg_value(u64 *valp, struct regs_dump *regs, int id)
                         idx++;
         }
 
-        *valp = regs->regs[idx];
+        regs->cache_mask |= (1 << id);
+        regs->cache_regs[id] = regs->regs[idx];
+
+out:
+        *valp = regs->cache_regs[id];
         return 0;
 }
diff --git a/tools/perf/util/perf_regs.h b/tools/perf/util/perf_regs.h
index 79c78f74e0cf..980dbf76bc98 100644
--- a/tools/perf/util/perf_regs.h
+++ b/tools/perf/util/perf_regs.h
@@ -2,7 +2,8 @@
 #define __PERF_REGS_H
 
 #include <linux/types.h>
-#include "event.h"
+
+struct regs_dump;
 
 #ifdef HAVE_PERF_REGS_SUPPORT
 #include <perf_regs.h>
@@ -11,6 +12,7 @@ int perf_reg_value(u64 *valp, struct regs_dump *regs, int id);
 
 #else
 #define PERF_REGS_MASK  0
+#define PERF_REGS_MAX   0
 
 static inline const char *perf_reg_name(int id __maybe_unused)
 {
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 0d1542f33d87..9a0a1839a377 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -628,11 +628,11 @@ static int __show_line_range(struct line_range *lr, const char *module)
 
         ret = debuginfo__find_line_range(dinfo, lr);
         debuginfo__delete(dinfo);
-        if (ret == 0) {
+        if (ret == 0 || ret == -ENOENT) {
                 pr_warning("Specified source line is not found.\n");
                 return -ENOENT;
         } else if (ret < 0) {
-                pr_warning("Debuginfo analysis failed. (%d)\n", ret);
+                pr_warning("Debuginfo analysis failed.\n");
                 return ret;
         }
 
@@ -641,7 +641,7 @@ static int __show_line_range(struct line_range *lr, const char *module)
         ret = get_real_path(tmp, lr->comp_dir, &lr->path);
         free(tmp);      /* Free old path */
         if (ret < 0) {
-                pr_warning("Failed to find source file. (%d)\n", ret);
+                pr_warning("Failed to find source file path.\n");
                 return ret;
         }
 
@@ -721,9 +721,14 @@ static int show_available_vars_at(struct debuginfo *dinfo,
         ret = debuginfo__find_available_vars_at(dinfo, pev, &vls,
                                                 max_vls, externs);
         if (ret <= 0) {
-                pr_err("Failed to find variables at %s (%d)\n", buf, ret);
+                if (ret == 0 || ret == -ENOENT) {
+                        pr_err("Failed to find the address of %s\n", buf);
+                        ret = -ENOENT;
+                } else
+                        pr_warning("Debuginfo analysis failed.\n");
                 goto end;
         }
+
         /* Some variables are found */
         fprintf(stdout, "Available variables at %s\n", buf);
         for (i = 0; i < ret; i++) {
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 9d8eb26f0533..98e304766416 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -573,14 +573,13 @@ static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf)
         if (!die_find_variable_at(sc_die, pf->pvar->var, pf->addr, &vr_die)) {
                 /* Search again in global variables */
                 if (!die_find_variable_at(&pf->cu_die, pf->pvar->var, 0, &vr_die))
+                        pr_warning("Failed to find '%s' in this function.\n",
+                                   pf->pvar->var);
                         ret = -ENOENT;
         }
         if (ret >= 0)
                 ret = convert_variable(&vr_die, pf);
 
-        if (ret < 0)
-                pr_warning("Failed to find '%s' in this function.\n",
-                           pf->pvar->var);
         return ret;
 }
 
@@ -1281,7 +1280,11 @@ out:
         return ret;
 }
 
-/* Find available variables at given probe point */
+/*
+ * Find available variables at given probe point
+ * Return the number of found probe points. Return 0 if there is no
+ * matched probe point. Return <0 if an error occurs.
+ */
 int debuginfo__find_available_vars_at(struct debuginfo *dbg,
                                       struct perf_probe_event *pev,
                                       struct variable_list **vls,
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index e108207c5de0..af7da565a750 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -215,6 +215,7 @@ static void define_event_symbols(struct event_format *event,
         case PRINT_BSTRING:
         case PRINT_DYNAMIC_ARRAY:
         case PRINT_STRING:
+        case PRINT_BITMASK:
                 break;
         case PRINT_TYPE:
                 define_event_symbols(event, ev_name, args->typecast.item);
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index cd9774df3750..1c419321f707 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -197,6 +197,7 @@ static void define_event_symbols(struct event_format *event,
         case PRINT_BSTRING:
         case PRINT_DYNAMIC_ARRAY:
         case PRINT_FUNC:
+        case PRINT_BITMASK:
                 /* we should warn... */
                 return;
         }
@@ -622,6 +623,7 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
                         fprintf(ofp, "%s=", f->name);
                         if (f->flags & FIELD_IS_STRING ||
                             f->flags & FIELD_IS_FLAG ||
+                            f->flags & FIELD_IS_ARRAY ||
                             f->flags & FIELD_IS_SYMBOLIC)
                                 fprintf(ofp, "%%s");
                         else if (f->flags & FIELD_IS_SIGNED)
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 45512baaab67..1ec57dd82284 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1,3 +1,4 @@
+#include <sys/mman.h>
 #include "sort.h"
 #include "hist.h"
 #include "comm.h"
@@ -784,6 +785,104 @@ static int hist_entry__snoop_snprintf(struct hist_entry *he, char *bf,
         return repsep_snprintf(bf, size, "%-*s", width, out);
 }
 
+static inline  u64 cl_address(u64 address)
+{
+        /* return the cacheline of the address */
+        return (address & ~(cacheline_size - 1));
+}
+
+static int64_t
+sort__dcacheline_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+        u64 l, r;
+        struct map *l_map, *r_map;
+
+        if (!left->mem_info)  return -1;
+        if (!right->mem_info) return 1;
+
+        /* group event types together */
+        if (left->cpumode > right->cpumode) return -1;
+        if (left->cpumode < right->cpumode) return 1;
+
+        l_map = left->mem_info->daddr.map;
+        r_map = right->mem_info->daddr.map;
+
+        /* if both are NULL, jump to sort on al_addr instead */
+        if (!l_map && !r_map)
+                goto addr;
+
+        if (!l_map) return -1;
+        if (!r_map) return 1;
+
+        if (l_map->maj > r_map->maj) return -1;
+        if (l_map->maj < r_map->maj) return 1;
+
+        if (l_map->min > r_map->min) return -1;
+        if (l_map->min < r_map->min) return 1;
+
+        if (l_map->ino > r_map->ino) return -1;
+        if (l_map->ino < r_map->ino) return 1;
+
+        if (l_map->ino_generation > r_map->ino_generation) return -1;
+        if (l_map->ino_generation < r_map->ino_generation) return 1;
+
+        /*
+         * Addresses with no major/minor numbers are assumed to be
+         * anonymous in userspace.  Sort those on pid then address.
+         *
+         * The kernel and non-zero major/minor mapped areas are
+         * assumed to be unity mapped.  Sort those on address.
+         */
+
+        if ((left->cpumode != PERF_RECORD_MISC_KERNEL) &&
+            (!(l_map->flags & MAP_SHARED)) &&
+            !l_map->maj && !l_map->min && !l_map->ino &&
+            !l_map->ino_generation) {
+                /* userspace anonymous */
+
+                if (left->thread->pid_ > right->thread->pid_) return -1;
+                if (left->thread->pid_ < right->thread->pid_) return 1;
+        }
+
+addr:
+        /* al_addr does all the right addr - start + offset calculations */
+        l = cl_address(left->mem_info->daddr.al_addr);
+        r = cl_address(right->mem_info->daddr.al_addr);
+
+        if (l > r) return -1;
+        if (l < r) return 1;
+
+        return 0;
+}
+
+static int hist_entry__dcacheline_snprintf(struct hist_entry *he, char *bf,
+                                          size_t size, unsigned int width)
+{
+
+        uint64_t addr = 0;
+        struct map *map = NULL;
+        struct symbol *sym = NULL;
+        char level = he->level;
+
+        if (he->mem_info) {
+                addr = cl_address(he->mem_info->daddr.al_addr);
+                map = he->mem_info->daddr.map;
+                sym = he->mem_info->daddr.sym;
+
+                /* print [s] for shared data mmaps */
+                if ((he->cpumode != PERF_RECORD_MISC_KERNEL) &&
+                     map && (map->type == MAP__VARIABLE) &&
+                    (map->flags & MAP_SHARED) &&
+                    (map->maj || map->min || map->ino ||
+                     map->ino_generation))
+                        level = 's';
+                else if (!map)
+                        level = 'X';
+        }
+        return _hist_entry__sym_snprintf(map, sym, addr, level, bf, size,
+                                         width);
+}
+
 struct sort_entry sort_mispredict = {
         .se_header      = "Branch Mispredicted",
         .se_cmp         = sort__mispredict_cmp,
@@ -876,6 +975,13 @@ struct sort_entry sort_mem_snoop = {
         .se_width_idx   = HISTC_MEM_SNOOP,
 };
 
+struct sort_entry sort_mem_dcacheline = {
+        .se_header      = "Data Cacheline",
+        .se_cmp         = sort__dcacheline_cmp,
+        .se_snprintf    = hist_entry__dcacheline_snprintf,
+        .se_width_idx   = HISTC_MEM_DCACHELINE,
+};
+
 static int64_t
 sort__abort_cmp(struct hist_entry *left, struct hist_entry *right)
 {
@@ -1043,6 +1149,7 @@ static struct sort_dimension memory_sort_dimensions[] = {
         DIM(SORT_MEM_TLB, "tlb", sort_mem_tlb),
         DIM(SORT_MEM_LVL, "mem", sort_mem_lvl),
         DIM(SORT_MEM_SNOOP, "snoop", sort_mem_snoop),
+        DIM(SORT_MEM_DCACHELINE, "dcacheline", sort_mem_dcacheline),
 };
 
 #undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 5bf0098d6b06..041f0c9cea2b 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -89,6 +89,7 @@ struct hist_entry {
         u64                     ip;
         u64                     transaction;
         s32                     cpu;
+        u8                      cpumode;
 
         struct hist_entry_diff  diff;
 
@@ -185,6 +186,7 @@ enum sort_type {
         SORT_MEM_TLB,
         SORT_MEM_LVL,
         SORT_MEM_SNOOP,
+        SORT_MEM_DCACHELINE,
 };
 
 /*
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index bd5768d74f01..25578b98f5c5 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -250,7 +250,6 @@ static int read_unwind_spec_eh_frame(struct dso *dso, struct machine *machine,
 
         /* Check the .eh_frame section for unwinding info */
         offset = elf_section_offset(fd, ".eh_frame_hdr");
-        close(fd);
 
         if (offset)
                 ret = unwind_spec_ehframe(dso, machine, offset,
@@ -271,7 +270,6 @@ static int read_unwind_spec_debug_frame(struct dso *dso,
 
         /* Check the .debug_frame section for unwinding info */
         *offset = elf_section_offset(fd, ".debug_frame");
-        close(fd);
 
         if (*offset)
                 return 0;
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 7fff6be07f07..95aefa78bb07 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -17,6 +17,7 @@
  * XXX We need to find a better place for these things...
  */
 unsigned int page_size;
+int cacheline_size;
 
 bool test_attr__enabled;
 
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index b03da44e94e4..66864364ccb4 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -304,6 +304,7 @@ char *rtrim(char *s);
 void dump_stack(void);
 
 extern unsigned int page_size;
+extern int cacheline_size;
 
 void get_term_dimensions(struct winsize *ws);