223 files changed, 2020 insertions, 1429 deletions
diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h
index 4554ecbff7c6..1f8c72959fb6 100644
--- a/arch/alpha/include/asm/thread_info.h
+++ b/arch/alpha/include/asm/thread_info.h
@@ -7,6 +7,7 @@
 #include <asm/processor.h>
 #include <asm/types.h>
 #include <asm/hwrpb.h>
+#include <asm/sysinfo.h>
 #endif
 #ifndef __ASSEMBLY__
@@ -21,6 +22,7 @@ struct thread_info {
        mm_segment_t            addr_limit;     /* thread address space */
        unsigned                cpu;            /* current CPU */
        int                     preempt_count; /* 0 => preemptable, <0 => BUG */
+        unsigned int            status;         /* thread-synchronous flags */
        int bpt_nsaved;
        unsigned long bpt_addr[2];              /* breakpoint handling  */
@@ -63,8 +65,6 @@ register struct thread_info *__current_thread_info __asm__("$8");
 * - these are process state flags and used from assembly
 * - pending work-to-be-done flags come first and must be assigned to be
 *   within bits 0 to 7 to fit in and immediate operand.
- * - ALPHA_UAC_SHIFT below must be kept consistent with the unaligned
- *   control flags.
 *
 * TIF_SYSCALL_TRACE is known to be 0 via blbs.
 */
@@ -72,18 +72,12 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define TIF_NOTIFY_RESUME       1       /* callback before returning to user */
 #define TIF_SIGPENDING          2       /* signal pending */
 #define TIF_NEED_RESCHED        3       /* rescheduling necessary */
-#define TIF_POLLING_NRFLAG      8       /* poll_idle is polling NEED_RESCHED */
 #define TIF_DIE_IF_KERNEL       9       /* dik recursion lock */
-#define TIF_UAC_NOPRINT         10      /* ! Preserve sequence of following */
-#define TIF_UAC_NOFIX           11      /* ! flags as they match            */
-#define TIF_UAC_SIGBUS          12      /* ! userspace part of 'osf_sysinfo' */
 #define TIF_MEMDIE              13      /* is terminating due to OOM killer */
-#define TIF_RESTORE_SIGMASK     14      /* restore signal mask in do_signal */
 #define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING         (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED       (1<<TIF_NEED_RESCHED)
-#define _TIF_POLLING_NRFLAG     (1<<TIF_POLLING_NRFLAG)
 #define _TIF_NOTIFY_RESUME      (1<<TIF_NOTIFY_RESUME)
 /* Work to do on interrupt/exception return.  */
@@ -94,29 +88,63 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define _TIF_ALLWORK_MASK       (_TIF_WORK_MASK         \
                                 | _TIF_SYSCALL_TRACE)
-#define ALPHA_UAC_SHIFT         TIF_UAC_NOPRINT
+#define TS_UAC_NOPRINT          0x0001  /* ! Preserve the following three */
-#define ALPHA_UAC_MASK          (1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \
+#define TS_UAC_NOFIX            0x0002  /* ! flags as they match          */
-                                 1 << TIF_UAC_SIGBUS)
+#define TS_UAC_SIGBUS           0x0004  /* ! userspace part of 'osf_sysinfo' */
+#define TS_RESTORE_SIGMASK      0x0008  /* restore signal mask in do_signal() */
+#define TS_POLLING              0x0010  /* idle task polling need_resched,
+                                           skip sending interrupt */
-#define SET_UNALIGN_CTL(task,value)     ({                                   \
+#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
-        task_thread_info(task)->flags = ((task_thread_info(task)->flags &    \
-                ~ALPHA_UAC_MASK)                                             \
+#ifndef __ASSEMBLY__
-                | (((value) << ALPHA_UAC_SHIFT)       & (1<<TIF_UAC_NOPRINT))\
+#define HAVE_SET_RESTORE_SIGMASK        1
-                | (((value) << (ALPHA_UAC_SHIFT + 1)) & (1<<TIF_UAC_SIGBUS)) \
+static inline void set_restore_sigmask(void)
-                | (((value) << (ALPHA_UAC_SHIFT - 1)) & (1<<TIF_UAC_NOFIX)));\
+{
+        struct thread_info *ti = current_thread_info();
+        ti->status |= TS_RESTORE_SIGMASK;
+        WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags));
+}
+static inline void clear_restore_sigmask(void)
+{
+        current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+        return current_thread_info()->status & TS_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+        struct thread_info *ti = current_thread_info();
+        if (!(ti->status & TS_RESTORE_SIGMASK))
+                return false;
+        ti->status &= ~TS_RESTORE_SIGMASK;
+        return true;
+}
+#endif
+#define SET_UNALIGN_CTL(task,value)     ({                              \
+        __u32 status = task_thread_info(task)->status & ~UAC_BITMASK;   \
+        if (value & PR_UNALIGN_NOPRINT)                                 \
+                status |= TS_UAC_NOPRINT;                               \
+        if (value & PR_UNALIGN_SIGBUS)                                  \
+                status |= TS_UAC_SIGBUS;                                \
+        if (value & 4)  /* alpha-specific */                            \
+                status |= TS_UAC_NOFIX;                                 \
+        task_thread_info(task)->status = status;                        \
        0; })
 #define GET_UNALIGN_CTL(task,value)     ({                              \
-        put_user((task_thread_info(task)->flags & (1 << TIF_UAC_NOPRINT))\
+        __u32 status = task_thread_info(task)->status & ~UAC_BITMASK;   \
-                  >> ALPHA_UAC_SHIFT                                    \
+        __u32 res = 0;                                                  \
-                 | (task_thread_info(task)->flags & (1 << TIF_UAC_SIGBUS))\
+        if (status & TS_UAC_NOPRINT)                                    \
-                 >> (ALPHA_UAC_SHIFT + 1)                               \
+                res |= PR_UNALIGN_NOPRINT;                              \
-                 | (task_thread_info(task)->flags & (1 << TIF_UAC_NOFIX))\
+        if (status & TS_UAC_SIGBUS)                                     \
-                 >> (ALPHA_UAC_SHIFT - 1),                              \
+                res |= PR_UNALIGN_SIGBUS;                               \
-                 (int __user *)(value));                                \
+        if (status & TS_UAC_NOFIX)                                      \
+                res |= 4;                                               \
+        put_user(res, (int __user *)(value));                           \
        })
-#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
 #endif /* __KERNEL__ */
 #endif /* _ALPHA_THREAD_INFO_H */
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 9eb090582cf1..1e6956a90608 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -793,8 +793,7 @@ SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
        case GSI_UACPROC:
                if (nbytes < sizeof(unsigned int))
                        return -EINVAL;
-                w = (current_thread_info()->flags >> ALPHA_UAC_SHIFT) &
+                w = current_thread_info()->status & UAC_BITMASK;
-                        UAC_BITMASK;
                if (put_user(w, (unsigned int __user *)buffer))
                        return -EFAULT;
                return 1;
@@ -904,24 +903,20 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
                break;
        case SSI_NVPAIRS: {
-                unsigned long v, w, i;
+                unsigned __user *p = buffer;
-                unsigned int old, new;
+                unsigned i;
                
-                for (i = 0; i < nbytes; ++i) {
+                for (i = 0, p = buffer; i < nbytes; ++i, p += 2) {
+                        unsigned v, w, status;
-                        if (get_user(v, 2*i + (unsigned int __user *)buffer))
+                        if (get_user(v, p) || get_user(w, p + 1))
-                                return -EFAULT;
-                        if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer))
                                return -EFAULT;
                        switch (v) {
                        case SSIN_UACPROC:
-                        again:
+                                w &= UAC_BITMASK;
-                                old = current_thread_info()->flags;
+                                status = current_thread_info()->status;
-                                new = old & ~(UAC_BITMASK << ALPHA_UAC_SHIFT);
+                                status = (status & ~UAC_BITMASK) | w;
-                                new = new | (w & UAC_BITMASK) << ALPHA_UAC_SHIFT;
+                                current_thread_info()->status = status;
-                                if (cmpxchg(&current_thread_info()->flags,
-                                            old, new) != old)
-                                        goto again;
                                break;
 
                        default:
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 4054e0ffe2b2..51987dcf79b8 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -49,7 +49,7 @@ EXPORT_SYMBOL(pm_power_off);
 void
 cpu_idle(void)
 {
-        set_thread_flag(TIF_POLLING_NRFLAG);
+        current_thread_info()->status |= TS_POLLING;
        while (1) {
                /* FIXME -- EV6 and LCA45 know how to power down
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 80d987c0e9aa..272666d006df 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -780,17 +780,17 @@ do_entUnaUser(void __user * va, unsigned long opcode,
        /* Check the UAC bits to decide what the user wants us to do
           with the unaliged access.  */
-        if (!test_thread_flag (TIF_UAC_NOPRINT)) {
+        if (!(current_thread_info()->status & TS_UAC_NOPRINT)) {
                if (__ratelimit(&ratelimit)) {
                        printk("%s(%d): unaligned trap at %016lx: %p %lx %ld\n",
                               current->comm, task_pid_nr(current),
                               regs->pc - 4, va, opcode, reg);
                }
        }
-        if (test_thread_flag (TIF_UAC_SIGBUS))
+        if ((current_thread_info()->status & TS_UAC_SIGBUS))
                goto give_sigbus;
        /* Not sure why you'd want to use this, but... */
-        if (test_thread_flag (TIF_UAC_NOFIX))
+        if ((current_thread_info()->status & TS_UAC_NOFIX))
                return;
        /* Don't bother reading ds in the access check since we already
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 73067efd4845..ade7e924bef5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1603,8 +1603,8 @@ config NR_CPUS
        default "4"
 config HOTPLUG_CPU
-        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
+        bool "Support for hot-pluggable CPUs"
-        depends on SMP && HOTPLUG && EXPERIMENTAL
+        depends on SMP && HOTPLUG
        help
          Say Y here to experiment with turning CPUs off and on.  CPUs
          can be controlled through /sys/devices/system/cpu.
@@ -1645,8 +1645,8 @@ config HZ
        default 100
 config THUMB2_KERNEL
-        bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
+        bool "Compile the kernel in Thumb-2 mode"
-        depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
+        depends on CPU_V7 && !CPU_V6 && !CPU_V6K
        select AEABI
        select ARM_ASM_UNIFIED
        select ARM_UNWIND
@@ -1850,6 +1850,7 @@ config XEN_DOM0
 config XEN
        bool "Xen guest support on ARM (EXPERIMENTAL)"
        depends on EXPERIMENTAL && ARM && OF
+        depends on CPU_V7 && !CPU_V6
        help
          Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index f023e3acdfbd..5f914fca911b 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -21,8 +21,6 @@ endif
 OBJCOPYFLAGS    :=-O binary -R .comment -S
 GZFLAGS         :=-9
 #KBUILD_CFLAGS  +=-pipe
-# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
-KBUILD_CFLAGS   +=$(call cc-option,-marm,)
 # Never generate .eh_frame
 KBUILD_CFLAGS   += $(call cc-option,-fno-dwarf2-cfi-asm)
@@ -105,17 +103,20 @@ endif
 ifeq ($(CONFIG_THUMB2_KERNEL),y)
 AFLAGS_AUTOIT   :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
 AFLAGS_NOWARN   :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
-CFLAGS_THUMB2   :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
+CFLAGS_ISA      :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
-AFLAGS_THUMB2   :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
+AFLAGS_ISA      :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
 # Work around buggy relocation from gas if requested:
 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
 CFLAGS_MODULE   +=-fno-optimize-sibling-calls
 endif
+else
+CFLAGS_ISA      :=$(call cc-option,-marm,)
+AFLAGS_ISA      :=$(CFLAGS_ISA)
 endif
 # Need -Uarm for gcc < 3.x
-KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
+KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
-KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
+KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 CHECKFLAGS      += -D__arm__
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index 3fdab016aa5c..f2aa09eb658e 100644
--- a/arch/arm/boot/Makefile
+++ b/arch/arm/boot/Makefile
@@ -33,7 +33,7 @@ ifeq ($(CONFIG_XIP_KERNEL),y)
 $(obj)/xipImage: vmlinux FORCE
        $(call if_changed,objcopy)
-        @echo '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
+        $(kecho) '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
 $(obj)/Image $(obj)/zImage: FORCE
        @echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
@@ -48,14 +48,14 @@ $(obj)/xipImage: FORCE
 $(obj)/Image: vmlinux FORCE
        $(call if_changed,objcopy)
-        @echo '  Kernel: $@ is ready'
+        $(kecho) '  Kernel: $@ is ready'
 $(obj)/compressed/vmlinux: $(obj)/Image FORCE
        $(Q)$(MAKE) $(build)=$(obj)/compressed $@
 $(obj)/zImage:  $(obj)/compressed/vmlinux FORCE
        $(call if_changed,objcopy)
-        @echo '  Kernel: $@ is ready'
+        $(kecho) '  Kernel: $@ is ready'
 endif
@@ -90,7 +90,7 @@ fi
 $(obj)/uImage:  $(obj)/zImage FORCE
        @$(check_for_multiple_loadaddr)
        $(call if_changed,uimage)
-        @echo '  Image $@ is ready'
+        $(kecho) '  Image $@ is ready'
 $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
        $(Q)$(MAKE) $(build)=$(obj)/bootp $@
@@ -98,7 +98,7 @@ $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
 $(obj)/bootpImage: $(obj)/bootp/bootp FORCE
        $(call if_changed,objcopy)
-        @echo '  Kernel: $@ is ready'
+        $(kecho) '  Kernel: $@ is ready'
 PHONY += initrd FORCE
 initrd:
diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
index b06c0db273b1..e6391a4e6649 100644
--- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
@@ -126,14 +126,14 @@
                #size-cells = <0>;
                btn3 {
-                        label = "Buttin 3";
+                        label = "Button 3";
                        gpios = <&pioA 30 1>;
                        linux,code = <0x103>;
                        gpio-key,wakeup;
                };
                btn4 {
-                        label = "Buttin 4";
+                        label = "Button 4";
                        gpios = <&pioA 31 1>;
                        linux,code = <0x104>;
                        gpio-key,wakeup;
diff --git a/arch/arm/boot/dts/dbx5x0.dtsi b/arch/arm/boot/dts/dbx5x0.dtsi
index 748ba7aa746c..4b0e0ca08f40 100644
--- a/arch/arm/boot/dts/dbx5x0.dtsi
+++ b/arch/arm/boot/dts/dbx5x0.dtsi
@@ -483,6 +483,8 @@
                        compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
                        reg = <0x80004000 0x1000>;
                        interrupts = <0 21 0x4>;
+                        arm,primecell-periphid = <0x180024>;
                        #address-cells = <1>;
                        #size-cells = <0>;
                        v-i2c-supply = <&db8500_vape_reg>;
@@ -494,6 +496,8 @@
                        compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
                        reg = <0x80122000 0x1000>;
                        interrupts = <0 22 0x4>;
+                        arm,primecell-periphid = <0x180024>;
                        #address-cells = <1>;
                        #size-cells = <0>;
                        v-i2c-supply = <&db8500_vape_reg>;
@@ -505,6 +509,8 @@
                        compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
                        reg = <0x80128000 0x1000>;
                        interrupts = <0 55 0x4>;
+                        arm,primecell-periphid = <0x180024>;
                        #address-cells = <1>;
                        #size-cells = <0>;
                        v-i2c-supply = <&db8500_vape_reg>;
@@ -516,6 +522,8 @@
                        compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
                        reg = <0x80110000 0x1000>;
                        interrupts = <0 12 0x4>;
+                        arm,primecell-periphid = <0x180024>;
                        #address-cells = <1>;
                        #size-cells = <0>;
                        v-i2c-supply = <&db8500_vape_reg>;
@@ -527,6 +535,8 @@
                        compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
                        reg = <0x8012a000 0x1000>;
                        interrupts = <0 51 0x4>;
+                        arm,primecell-periphid = <0x180024>;
                        #address-cells = <1>;
                        #size-cells = <0>;
                        v-i2c-supply = <&db8500_vape_reg>;
@@ -573,33 +583,38 @@
                        interrupts = <0 60 0x4>;
                        status = "disabled";
                };
                sdi@80118000 {
                        compatible = "arm,pl18x", "arm,primecell";
                        reg = <0x80118000 0x1000>;
                        interrupts = <0 50 0x4>;
                        status = "disabled";
                };
                sdi@80005000 {
                        compatible = "arm,pl18x", "arm,primecell";
                        reg = <0x80005000 0x1000>;
                        interrupts = <0 41 0x4>;
                        status = "disabled";
                };
                sdi@80119000 {
                        compatible = "arm,pl18x", "arm,primecell";
                        reg = <0x80119000 0x1000>;
                        interrupts = <0 59 0x4>;
                        status = "disabled";
                };
                sdi@80114000 {
                        compatible = "arm,pl18x", "arm,primecell";
                        reg = <0x80114000 0x1000>;
                        interrupts = <0 99 0x4>;
                        status = "disabled";
                };
                sdi@80008000 {
                        compatible = "arm,pl18x", "arm,primecell";
-                        reg = <0x80114000 0x1000>;
+                        reg = <0x80008000 0x1000>;
                        interrupts = <0 100 0x4>;
                        status = "disabled";
                };
diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts
index 73567b843e72..a21511c14071 100644
--- a/arch/arm/boot/dts/exynos4210-trats.dts
+++ b/arch/arm/boot/dts/exynos4210-trats.dts
@@ -20,8 +20,10 @@
        compatible = "samsung,trats", "samsung,exynos4210";
        memory {
-                reg =  <0x40000000 0x20000000
+                reg =  <0x40000000 0x10000000
-                        0x60000000 0x20000000>;
+                        0x50000000 0x10000000
+                        0x60000000 0x10000000
+                        0x70000000 0x10000000>;
        };
        chosen {
diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
index 9ca4ca70c1bc..6d31aa383460 100644
--- a/arch/arm/boot/dts/imx23.dtsi
+++ b/arch/arm/boot/dts/imx23.dtsi
@@ -69,6 +69,7 @@
                                interrupts = <13>, <56>;
                                interrupt-names = "gpmi-dma", "bch";
                                clocks = <&clks 34>;
+                                clock-names = "gpmi_io";
                                fsl,gpmi-dma-channel = <4>;
                                status = "disabled";
                        };
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index e16d63155480..55c57ea6169e 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -85,6 +85,7 @@
                                interrupts = <88>, <41>;
                                interrupt-names = "gpmi-dma", "bch";
                                clocks = <&clks 50>;
+                                clock-names = "gpmi_io";
                                fsl,gpmi-dma-channel = <4>;
                                status = "disabled";
                        };
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index f38ea8771b44..696e929d0304 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -257,7 +257,7 @@
                        interrupt-names = "common", "tx", "rx", "sidetone";
                        interrupt-parent = <&intc>;
                        ti,buffer-size = <1280>;
-                        ti,hwmods = "mcbsp2";
+                        ti,hwmods = "mcbsp2", "mcbsp2_sidetone";
                };
                mcbsp3: mcbsp@49024000 {
@@ -272,7 +272,7 @@
                        interrupt-names = "common", "tx", "rx", "sidetone";
                        interrupt-parent = <&intc>;
                        ti,buffer-size = <128>;
-                        ti,hwmods = "mcbsp3";
+                        ti,hwmods = "mcbsp3", "mcbsp3_sidetone";
                };
                mcbsp4: mcbsp@49026000 {
diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index 66aa7a6db884..394ded624e37 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -139,6 +139,7 @@ CONFIG_I2C_IMX=y
 CONFIG_SPI=y
 CONFIG_SPI_IMX=y
 CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_MC9S08DZ60=y
 # CONFIG_HWMON is not set
 CONFIG_WATCHDOG=y
 CONFIG_IMX2_WDT=y
@@ -155,6 +156,7 @@ CONFIG_SOC_CAMERA=y
 CONFIG_SOC_CAMERA_OV2640=y
 CONFIG_VIDEO_MX3=y
 CONFIG_FB=y
+CONFIG_LCD_PLATFORM=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_LCD_CLASS_DEVICE=y
 CONFIG_LCD_L4F00242T03=y
diff --git a/arch/arm/configs/mvebu_defconfig b/arch/arm/configs/mvebu_defconfig
index 7bcf850eddcd..3458752c4bb2 100644
--- a/arch/arm/configs/mvebu_defconfig
+++ b/arch/arm/configs/mvebu_defconfig
@@ -1,6 +1,6 @@
 CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
-CONFIG_NO_HZ=y
+CONFIG_IRQ_DOMAIN_DEBUG=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
@@ -9,10 +9,12 @@ CONFIG_SLAB=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_ARCH_MVEBU=y
-CONFIG_MACH_ARMADA_370_XP=y
+CONFIG_MACH_ARMADA_370=y
+CONFIG_MACH_ARMADA_XP=y
+# CONFIG_CACHE_L2X0 is not set
 CONFIG_AEABI=y
 CONFIG_HIGHMEM=y
-CONFIG_USE_OF=y
+# CONFIG_COMPACTION is not set
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_ARM_APPENDED_DTB=y
@@ -23,6 +25,8 @@ CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set
diff --git a/arch/arm/configs/versatile_defconfig b/arch/arm/configs/versatile_defconfig
index cdd4d2bd3962..2ba9e63d0f17 100644
--- a/arch/arm/configs/versatile_defconfig
+++ b/arch/arm/configs/versatile_defconfig
@@ -1,3 +1,4 @@
+CONFIG_ARCH_VERSATILE=y
 CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h
index 59426a4595c9..e847d23351ed 100644
--- a/arch/arm/include/asm/flat.h
+++ b/arch/arm/include/asm/flat.h
@@ -8,7 +8,7 @@
 #define flat_argvp_envp_on_stack()              1
 #define flat_old_ram_flag(flags)                (flags)
 #define flat_reloc_valid(reloc, size)           ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) get_unaligned(rp)
+#define flat_get_addr_from_rp(rp, relval, flags, persistent) ((void)persistent,get_unaligned(rp))
 #define flat_put_addr_at_rp(rp, val, relval)    put_unaligned(val,rp)
 #define flat_get_relocate_addr(rel)             (rel)
 #define flat_set_persistent(relval, p)          0
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 35c1ed89b936..42f042ee4ada 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -64,7 +64,7 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
 static inline void __raw_writew(u16 val, volatile void __iomem *addr)
 {
        asm volatile("strh %1, %0"
-                     : "+Qo" (*(volatile u16 __force *)addr)
+                     : "+Q" (*(volatile u16 __force *)addr)
                     : "r" (val));
 }
@@ -72,7 +72,7 @@ static inline u16 __raw_readw(const volatile void __iomem *addr)
 {
        u16 val;
        asm volatile("ldrh %1, %0"
-                     : "+Qo" (*(volatile u16 __force *)addr),
+                     : "+Q" (*(volatile u16 __force *)addr),
                       "=r" (val));
        return val;
 }
diff --git a/arch/arm/include/asm/sched_clock.h b/arch/arm/include/asm/sched_clock.h
index 05b8e82ec9f5..e3f757263438 100644
--- a/arch/arm/include/asm/sched_clock.h
+++ b/arch/arm/include/asm/sched_clock.h
@@ -10,7 +10,5 @@
 extern void sched_clock_postinit(void);
 extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
-extern void setup_sched_clock_needs_suspend(u32 (*read)(void), int bits,
-                unsigned long rate);
 #endif
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 77bd79f2ffdb..7e1f76027f66 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -200,8 +200,8 @@ extern int __put_user_8(void *, unsigned long long);
 #define USER_DS                 KERNEL_DS
 #define segment_eq(a,b)         (1)
-#define __addr_ok(addr)         (1)
+#define __addr_ok(addr)         ((void)(addr),1)
-#define __range_ok(addr,size)   (0)
+#define __range_ok(addr,size)   ((void)(addr),0)
 #define get_fs()                (KERNEL_DS)
 static inline void set_fs(mm_segment_t fs)
diff --git a/arch/arm/include/asm/vfpmacros.h b/arch/arm/include/asm/vfpmacros.h
index 6a6f1e485f41..301c1db3e99b 100644
--- a/arch/arm/include/asm/vfpmacros.h
+++ b/arch/arm/include/asm/vfpmacros.h
@@ -27,9 +27,9 @@
 #if __LINUX_ARM_ARCH__ <= 6
        ldr     \tmp, =elf_hwcap                    @ may not have MVFR regs
        ldr     \tmp, [\tmp, #0]
-        tst     \tmp, #HWCAP_VFPv3D16
+        tst     \tmp, #HWCAP_VFPD32
-        ldceql  p11, cr0, [\base],#32*4             @ FLDMIAD \base!, {d16-d31}
+        ldcnel  p11, cr0, [\base],#32*4             @ FLDMIAD \base!, {d16-d31}
-        addne   \base, \base, #32*4                 @ step over unused register space
+        addeq   \base, \base, #32*4                 @ step over unused register space
 #else
        VFPFMRX \tmp, MVFR0                         @ Media and VFP Feature Register 0
        and     \tmp, \tmp, #MVFR0_A_SIMD_MASK      @ A_SIMD field
@@ -51,9 +51,9 @@
 #if __LINUX_ARM_ARCH__ <= 6
        ldr     \tmp, =elf_hwcap                    @ may not have MVFR regs
        ldr     \tmp, [\tmp, #0]
-        tst     \tmp, #HWCAP_VFPv3D16
+        tst     \tmp, #HWCAP_VFPD32
-        stceql  p11, cr0, [\base],#32*4             @ FSTMIAD \base!, {d16-d31}
+        stcnel  p11, cr0, [\base],#32*4             @ FSTMIAD \base!, {d16-d31}
-        addne   \base, \base, #32*4                 @ step over unused register space
+        addeq   \base, \base, #32*4                 @ step over unused register space
 #else
        VFPFMRX \tmp, MVFR0                         @ Media and VFP Feature Register 0
        and     \tmp, \tmp, #MVFR0_A_SIMD_MASK      @ A_SIMD field
diff --git a/arch/arm/include/asm/xen/interface.h b/arch/arm/include/asm/xen/interface.h
index ae05e56dd17d..5000397134b4 100644
--- a/arch/arm/include/asm/xen/interface.h
+++ b/arch/arm/include/asm/xen/interface.h
@@ -29,16 +29,22 @@
 #ifndef __ASSEMBLY__
 /* Explicitly size integers that represent pfns in the interface with
- * Xen so that we can have one ABI that works for 32 and 64 bit guests. */
+ * Xen so that we can have one ABI that works for 32 and 64 bit guests.
+ * Note that this means that the xen_pfn_t type may be capable of
+ * representing pfn's which the guest cannot represent in its own pfn
+ * type. However since pfn space is controlled by the guest this is
+ * fine since it simply wouldn't be able to create any sure pfns in
+ * the first place.
+ */
 typedef uint64_t xen_pfn_t;
+#define PRI_xen_pfn "llx"
 typedef uint64_t xen_ulong_t;
+#define PRI_xen_ulong "llx"
 /* Guest handles for primitive C types. */
 __DEFINE_GUEST_HANDLE(uchar, unsigned char);
 __DEFINE_GUEST_HANDLE(uint,  unsigned int);
-__DEFINE_GUEST_HANDLE(ulong, unsigned long);
 DEFINE_GUEST_HANDLE(char);
 DEFINE_GUEST_HANDLE(int);
-DEFINE_GUEST_HANDLE(long);
 DEFINE_GUEST_HANDLE(void);
 DEFINE_GUEST_HANDLE(uint64_t);
 DEFINE_GUEST_HANDLE(uint32_t);
diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h
index 174202318dff..c6b9096cef95 100644
--- a/arch/arm/include/asm/xen/page.h
+++ b/arch/arm/include/asm/xen/page.h
@@ -10,7 +10,7 @@
 #include <xen/interface/grant_table.h>
 #define pfn_to_mfn(pfn)                 (pfn)
-#define phys_to_machine_mapping_valid   (1)
+#define phys_to_machine_mapping_valid(pfn) (1)
 #define mfn_to_pfn(mfn)                 (mfn)
 #define mfn_to_virt(m)                  (__va(mfn_to_pfn(m) << PAGE_SHIFT))
@@ -30,6 +30,8 @@ typedef struct xpaddr {
 #define XMADDR(x)       ((xmaddr_t) { .maddr = (x) })
 #define XPADDR(x)       ((xpaddr_t) { .paddr = (x) })
+#define INVALID_P2M_ENTRY      (~0UL)
 static inline xmaddr_t phys_to_machine(xpaddr_t phys)
 {
        unsigned offset = phys.paddr & ~PAGE_MASK;
@@ -74,9 +76,14 @@ static inline int m2p_remove_override(struct page *page, bool clear_pte)
        return 0;
 }
+static inline bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+{
+        BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
+        return true;
+}
 static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn)
 {
-        BUG();
+        return __set_phys_to_machine(pfn, mfn);
-        return false;
 }
 #endif /* _ASM_ARM_XEN_PAGE_H */
diff --git a/arch/arm/include/debug/8250_32.S b/arch/arm/include/debug/8250_32.S
new file mode 100644
index 000000000000..8db01eeabbb4
--- /dev/null
+++ b/arch/arm/include/debug/8250_32.S
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2011 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit
+ * accesses to the 8250.
+ */
+#include <linux/serial_reg.h>
+                .macro  senduart,rd,rx
+                str     \rd, [\rx, #UART_TX << UART_SHIFT]
+                .endm
+                .macro  busyuart,rd,rx
+1002:           ldr     \rd, [\rx, #UART_LSR << UART_SHIFT]
+                and     \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
+                teq     \rd, #UART_LSR_TEMT | UART_LSR_THRE
+                bne     1002b
+                .endm
+                /* The UART's don't have any flow control IO's wired up. */
+                .macro  waituart,rd,rx
+                .endm
diff --git a/arch/arm/include/debug/picoxcell.S b/arch/arm/include/debug/picoxcell.S
index 7419deb1b948..bc1f07c49cd4 100644
--- a/arch/arm/include/debug/picoxcell.S
+++ b/arch/arm/include/debug/picoxcell.S
@@ -5,10 +5,7 @@
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
- * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit
- * accesses to the 8250.
 */
-#include <linux/serial_reg.h>
 #define UART_SHIFT 2
 #define PICOXCELL_UART1_BASE            0x80230000
@@ -19,17 +16,4 @@
                ldr     \rp, =PICOXCELL_UART1_BASE
                .endm
-                .macro  senduart,rd,rx
+#include "8250_32.S"
-                str     \rd, [\rx, #UART_TX << UART_SHIFT]
-                .endm
-                .macro  busyuart,rd,rx
-1002:           ldr     \rd, [\rx, #UART_LSR << UART_SHIFT]
-                and     \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
-                teq     \rd, #UART_LSR_TEMT | UART_LSR_THRE
-                bne     1002b
-                .endm
-                /* The UART's don't have any flow control IO's wired up. */
-                .macro  waituart,rd,rx
-                .endm
diff --git a/arch/arm/include/debug/socfpga.S b/arch/arm/include/debug/socfpga.S
index d6f26d23374f..966b2f994946 100644
--- a/arch/arm/include/debug/socfpga.S
+++ b/arch/arm/include/debug/socfpga.S
@@ -7,6 +7,9 @@
 * published by the Free Software Foundation.
 */
+#define UART_SHIFT 2
+#define DEBUG_LL_UART_OFFSET    0x00002000
                .macro  addruart, rp, rv, tmp
                mov     \rp, #DEBUG_LL_UART_OFFSET
                orr     \rp, \rp, #0x00c00000
@@ -14,3 +17,5 @@
                orr     \rp, \rp, #0xff000000   @ physical base
                .endm
+#include "8250_32.S"
diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h
index f254f6503cce..3688fd15a32d 100644
--- a/arch/arm/include/uapi/asm/hwcap.h
+++ b/arch/arm/include/uapi/asm/hwcap.h
@@ -18,11 +18,12 @@
 #define HWCAP_THUMBEE   (1 << 11)
 #define HWCAP_NEON      (1 << 12)
 #define HWCAP_VFPv3     (1 << 13)
-#define HWCAP_VFPv3D16  (1 << 14)
+#define HWCAP_VFPv3D16  (1 << 14)       /* also set for VFPv4-D16 */
 #define HWCAP_TLS       (1 << 15)
 #define HWCAP_VFPv4     (1 << 16)
 #define HWCAP_IDIVA     (1 << 17)
 #define HWCAP_IDIVT     (1 << 18)
+#define HWCAP_VFPD32    (1 << 19)       /* set if VFP has 32 regs (not 16) */
 #define HWCAP_IDIV      (HWCAP_IDIVA | HWCAP_IDIVT)
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 16cedb42c0c3..896165096d6a 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -34,6 +34,7 @@
 #include <linux/list.h>
 #include <linux/kallsyms.h>
 #include <linux/proc_fs.h>
+#include <linux/export.h>
 #include <asm/exception.h>
 #include <asm/mach/arch.h>
@@ -109,6 +110,7 @@ void set_irq_flags(unsigned int irq, unsigned int iflags)
        /* Order is clear bits in "clr" then set bits in "set" */
        irq_modify_status(irq, clr, set & ~clr);
 }
+EXPORT_SYMBOL_GPL(set_irq_flags);
 void __init init_IRQ(void)
 {
diff --git a/arch/arm/kernel/kprobes-test-arm.c b/arch/arm/kernel/kprobes-test-arm.c
index 38c1a3b103a0..839312905067 100644
--- a/arch/arm/kernel/kprobes-test-arm.c
+++ b/arch/arm/kernel/kprobes-test-arm.c
@@ -366,7 +366,9 @@ void kprobe_arm_test_cases(void)
        TEST_UNSUPPORTED(".word 0xe04f0392 @ umaal r0, pc, r2, r3")
        TEST_UNSUPPORTED(".word 0xe0500090 @ undef")
        TEST_UNSUPPORTED(".word 0xe05fff9f @ undef")
+#endif
+#if __LINUX_ARM_ARCH__ >= 7
        TEST_RRR(  "mls         r0, r",1, VAL1,", r",2, VAL2,", r",3,  VAL3,"")
        TEST_RRR(  "mlshi       r7, r",8, VAL3,", r",9, VAL1,", r",10, VAL2,"")
        TEST_RR(   "mls         lr, r",1, VAL2,", r",2, VAL3,", r13")
@@ -456,6 +458,8 @@ void kprobe_arm_test_cases(void)
        TEST_UNSUPPORTED(".word 0xe1700090") /* Unallocated space */
 #if __LINUX_ARM_ARCH__ >= 6
        TEST_UNSUPPORTED("ldrex r2, [sp]")
+#endif
+#if (__LINUX_ARM_ARCH__ >= 7) || defined(CONFIG_CPU_32v6K)
        TEST_UNSUPPORTED("strexd        r0, r2, r3, [sp]")
        TEST_UNSUPPORTED("ldrexd        r2, r3, [sp]")
        TEST_UNSUPPORTED("strexb        r0, r2, [sp]")
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index e29c3337ca81..8ef8c9337809 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -45,10 +45,9 @@ int machine_kexec_prepare(struct kimage *image)
        for (i = 0; i < image->nr_segments; i++) {
                current_segment = &image->segment[i];
-                err = memblock_is_region_memory(current_segment->mem,
+                if (!memblock_is_region_memory(current_segment->mem,
-                                                current_segment->memsz);
+                                               current_segment->memsz))
-                if (err)
+                        return -EINVAL;
-                        return - EINVAL;
                err = get_user(header, (__be32*)current_segment->buf);
                if (err)
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 93971b1a4f0b..53c0304b734a 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -96,6 +96,10 @@ armpmu_event_set_period(struct perf_event *event,
        s64 period = hwc->sample_period;
        int ret = 0;
+        /* The period may have been changed by PERF_EVENT_IOC_PERIOD */
+        if (unlikely(period != hwc->last_period))
+                left = period - (hwc->last_period - left);
        if (unlikely(left <= -period)) {
                left = period;
                local64_set(&hwc->period_left, left);
diff --git a/arch/arm/kernel/sched_clock.c b/arch/arm/kernel/sched_clock.c
index e21bac20d90d..fc6692e2b603 100644
--- a/arch/arm/kernel/sched_clock.c
+++ b/arch/arm/kernel/sched_clock.c
@@ -107,13 +107,6 @@ static void sched_clock_poll(unsigned long wrap_ticks)
        update_sched_clock();
 }
-void __init setup_sched_clock_needs_suspend(u32 (*read)(void), int bits,
-                unsigned long rate)
-{
-        setup_sched_clock(read, bits, rate);
-        cd.needs_suspend = true;
-}
 void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
 {
        unsigned long r, w;
@@ -189,18 +182,15 @@ void __init sched_clock_postinit(void)
 static int sched_clock_suspend(void)
 {
        sched_clock_poll(sched_clock_timer.data);
-        if (cd.needs_suspend)
+        cd.suspended = true;
-                cd.suspended = true;
        return 0;
 }
 static void sched_clock_resume(void)
 {
-        if (cd.needs_suspend) {
+        cd.epoch_cyc = read_sched_clock();
-                cd.epoch_cyc = read_sched_clock();
+        cd.epoch_cyc_copy = cd.epoch_cyc;
-                cd.epoch_cyc_copy = cd.epoch_cyc;
+        cd.suspended = false;
-                cd.suspended = false;
-        }
 }
 static struct syscore_ops sched_clock_ops = {
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 8e20754dd31d..fbc8b2623d82 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -294,18 +294,24 @@ static void percpu_timer_setup(void);
 asmlinkage void __cpuinit secondary_start_kernel(void)
 {
        struct mm_struct *mm = &init_mm;
-        unsigned int cpu = smp_processor_id();
+        unsigned int cpu;
+        /*
+         * The identity mapping is uncached (strongly ordered), so
+         * switch away from it before attempting any exclusive accesses.
+         */
+        cpu_switch_mm(mm->pgd, mm);
+        enter_lazy_tlb(mm, current);
+        local_flush_tlb_all();
        /*
         * All kernel threads share the same mm context; grab a
         * reference and switch to it.
         */
+        cpu = smp_processor_id();
        atomic_inc(&mm->mm_count);
        current->active_mm = mm;
        cpumask_set_cpu(cpu, mm_cpumask(mm));
-        cpu_switch_mm(mm->pgd, mm);
-        enter_lazy_tlb(mm, current);
-        local_flush_tlb_all();
        printk("CPU%u: Booted secondary processor\n", cpu);
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index e1f906989bb8..b22d700fea27 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -42,10 +42,10 @@ static void twd_set_mode(enum clock_event_mode mode,
        switch (mode) {
        case CLOCK_EVT_MODE_PERIODIC:
-                /* timer load already set up */
                ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE
                        | TWD_TIMER_CONTROL_PERIODIC;
-                __raw_writel(twd_timer_rate / HZ, twd_base + TWD_TIMER_LOAD);
+                __raw_writel(DIV_ROUND_CLOSEST(twd_timer_rate, HZ),
+                        twd_base + TWD_TIMER_LOAD);
                break;
        case CLOCK_EVT_MODE_ONESHOT:
                /* period set, and timer enabled in 'next_event' hook */
diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c
index 9d0a30032d7f..0dc53854a5d8 100644
--- a/arch/arm/lib/delay.c
+++ b/arch/arm/lib/delay.c
@@ -45,6 +45,7 @@ int read_current_timer(unsigned long *timer_val)
        *timer_val = delay_timer->read_current_timer();
        return 0;
 }
+EXPORT_SYMBOL_GPL(read_current_timer);
 static void __timer_delay(unsigned long cycles)
 {
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index b14207101938..043624219b55 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -21,19 +21,13 @@ config SOC_AT91SAM9
        bool
        select CPU_ARM926T
        select GENERIC_CLOCKEVENTS
+        select MULTI_IRQ_HANDLER
+        select SPARSE_IRQ
 menu "Atmel AT91 System-on-Chip"
 comment "Atmel AT91 Processor"
-config SOC_AT91SAM9
-        bool
-        select AT91_SAM9_SMC
-        select AT91_SAM9_TIME
-        select CPU_ARM926T
-        select MULTI_IRQ_HANDLER
-        select SPARSE_IRQ
 config SOC_AT91RM9200
        bool "AT91RM9200"
        select CPU_ARM920T
diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index b4f0565aff63..5269825194a8 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -187,7 +187,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
        CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
        CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
        CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
-        CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200", &twi_clk),
+        CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200.0", &twi_clk),
        /* fake hclk clock */
        CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
        CLKDEV_CON_ID("pioA", &pioA_clk),
diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index a563189cdfc3..1e122bcd7845 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -479,7 +479,7 @@ static struct i2c_gpio_platform_data pdata = {
 static struct platform_device at91rm9200_twi_device = {
        .name                   = "i2c-gpio",
-        .id                     = -1,
+        .id                     = 0,
        .dev.platform_data      = &pdata,
 };
@@ -512,7 +512,7 @@ static struct resource twi_resources[] = {
 static struct platform_device at91rm9200_twi_device = {
        .name           = "i2c-at91rm9200",
-        .id             = -1,
+        .id             = 0,
        .resource       = twi_resources,
        .num_resources  = ARRAY_SIZE(twi_resources),
 };
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index ad29f93f20ca..f8202615f4a8 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -211,8 +211,8 @@ static struct clk_lookup periph_clocks_lookups[] = {
        CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk),
        CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk),
        CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc_clk),
-        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260", &twi_clk),
+        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk),
-        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20", &twi_clk),
+        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.0", &twi_clk),
        /* more usart lookup table for DT entries */
        CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck),
        CLKDEV_CON_DEV_ID("usart", "fffb0000.serial", &usart0_clk),
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index a76b8684f52d..aa1e58729885 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -389,7 +389,7 @@ static struct i2c_gpio_platform_data pdata = {
 static struct platform_device at91sam9260_twi_device = {
        .name                   = "i2c-gpio",
-        .id                     = -1,
+        .id                     = 0,
        .dev.platform_data      = &pdata,
 };
@@ -421,7 +421,7 @@ static struct resource twi_resources[] = {
 };
 static struct platform_device at91sam9260_twi_device = {
-        .id             = -1,
+        .id             = 0,
        .resource       = twi_resources,
        .num_resources  = ARRAY_SIZE(twi_resources),
 };
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index 8d999eb1a137..04295c04b3e0 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -178,8 +178,8 @@ static struct clk_lookup periph_clocks_lookups[] = {
        CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
        CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
        CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &hck0),
-        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9261", &twi_clk),
+        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9261.0", &twi_clk),
-        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10", &twi_clk),
+        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.0", &twi_clk),
        CLKDEV_CON_ID("pioA", &pioA_clk),
        CLKDEV_CON_ID("pioB", &pioB_clk),
        CLKDEV_CON_ID("pioC", &pioC_clk),
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 9752f17efba9..b9487696b7be 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -285,7 +285,7 @@ static struct i2c_gpio_platform_data pdata = {
 static struct platform_device at91sam9261_twi_device = {
        .name                   = "i2c-gpio",
-        .id                     = -1,
+        .id                     = 0,
        .dev.platform_data      = &pdata,
 };
@@ -317,7 +317,7 @@ static struct resource twi_resources[] = {
 };
 static struct platform_device at91sam9261_twi_device = {
-        .id             = -1,
+        .id             = 0,
        .resource       = twi_resources,
        .num_resources  = ARRAY_SIZE(twi_resources),
 };
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index 6a01d0360dfb..d6f9c23927c4 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -193,7 +193,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
        CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
        CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
        CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk),
-        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260", &twi_clk),
+        CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk),
        /* fake hclk clock */
        CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
        CLKDEV_CON_ID("pioA", &pioA_clk),
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index 8dde220b42b6..cb85da2eccea 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -567,7 +567,7 @@ static struct i2c_gpio_platform_data pdata = {
 static struct platform_device at91sam9263_twi_device = {
        .name                   = "i2c-gpio",
-        .id                     = -1,
+        .id                     = 0,
        .dev.platform_data      = &pdata,
 };
@@ -600,7 +600,7 @@ static struct resource twi_resources[] = {
 static struct platform_device at91sam9263_twi_device = {
        .name           = "i2c-at91sam9260",
-        .id             = -1,
+        .id             = 0,
        .resource       = twi_resources,
        .num_resources  = ARRAY_SIZE(twi_resources),
 };
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index d6ca0543ce8d..5047bdc92adf 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -314,7 +314,7 @@ static struct i2c_gpio_platform_data pdata = {
 static struct platform_device at91sam9rl_twi_device = {
        .name                   = "i2c-gpio",
-        .id                     = -1,
+        .id                     = 0,
        .dev.platform_data      = &pdata,
 };
@@ -347,7 +347,7 @@ static struct resource twi_resources[] = {
 static struct platform_device at91sam9rl_twi_device = {
        .name           = "i2c-at91sam9g20",
-        .id             = -1,
+        .id             = 0,
        .resource       = twi_resources,
        .num_resources  = ARRAY_SIZE(twi_resources),
 };
diff --git a/arch/arm/mach-at91/at91x40.c b/arch/arm/mach-at91/at91x40.c
index 6bd7300a2bc5..bb7f54474b92 100644
--- a/arch/arm/mach-at91/at91x40.c
+++ b/arch/arm/mach-at91/at91x40.c
@@ -88,6 +88,6 @@ void __init at91x40_init_interrupts(unsigned int priority[NR_AIC_IRQS])
        if (!priority)
                priority = at91x40_default_irq_priority;
-        at91_aic_init(priority);
+        at91_aic_init(priority, at91_extern_irq);
 }
diff --git a/arch/arm/mach-at91/board-neocore926.c b/arch/arm/mach-at91/board-neocore926.c
index 9cda3fd346ae..6960778af4c2 100644
--- a/arch/arm/mach-at91/board-neocore926.c
+++ b/arch/arm/mach-at91/board-neocore926.c
@@ -129,7 +129,7 @@ static struct spi_board_info neocore926_spi_devices[] = {
                .max_speed_hz   = 125000 * 16,
                .bus_num        = 0,
                .platform_data  = &ads_info,
-                .irq            = AT91SAM9263_ID_IRQ1,
+                .irq            = NR_IRQS_LEGACY + AT91SAM9263_ID_IRQ1,
        },
 #endif
 };
diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index 27b3af1a3047..a9167dd45f96 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -309,7 +309,7 @@ static struct spi_board_info ek_spi_devices[] = {
                .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
                .bus_num        = 0,
                .platform_data  = &ads_info,
-                .irq            = AT91SAM9261_ID_IRQ0,
+                .irq            = NR_IRQS_LEGACY + AT91SAM9261_ID_IRQ0,
                .controller_data = (void *) AT91_PIN_PA28,      /* CS pin */
        },
 #endif
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index 073e17403d98..b87dbe2be0d6 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -132,7 +132,7 @@ static struct spi_board_info ek_spi_devices[] = {
                .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
                .bus_num        = 0,
                .platform_data  = &ads_info,
-                .irq            = AT91SAM9263_ID_IRQ1,
+                .irq            = NR_IRQS_LEGACY + AT91SAM9263_ID_IRQ1,
        },
 #endif
 };
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index f49650677653..b62f560e6c75 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -26,7 +26,8 @@ extern void __init at91_dt_initialize(void);
 extern void __init at91_init_irq_default(void);
 extern void __init at91_init_interrupts(unsigned int priority[]);
 extern void __init at91x40_init_interrupts(unsigned int priority[]);
-extern void __init at91_aic_init(unsigned int priority[]);
+extern void __init at91_aic_init(unsigned int priority[],
+                                 unsigned int ext_irq_mask);
 extern int  __init at91_aic_of_init(struct device_node *node,
                                    struct device_node *parent);
 extern int  __init at91_aic5_of_init(struct device_node *node,
diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c
index 1e02c0e49dcc..febc2ee901a5 100644
--- a/arch/arm/mach-at91/irq.c
+++ b/arch/arm/mach-at91/irq.c
@@ -502,14 +502,19 @@ int __init at91_aic5_of_init(struct device_node *node,
 /*
 * Initialize the AIC interrupt controller.
 */
-void __init at91_aic_init(unsigned int *priority)
+void __init at91_aic_init(unsigned int *priority, unsigned int ext_irq_mask)
 {
        unsigned int i;
        int irq_base;
-        if (at91_aic_pm_init())
+        at91_extern_irq = kzalloc(BITS_TO_LONGS(n_irqs)
+                                  * sizeof(*at91_extern_irq), GFP_KERNEL);
+        if (at91_aic_pm_init() || at91_extern_irq == NULL)
                panic("Unable to allocate bit maps\n");
+        *at91_extern_irq = ext_irq_mask;
        at91_aic_base = ioremap(AT91_AIC, 512);
        if (!at91_aic_base)
                panic("Unable to ioremap AIC registers\n");
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index da9881b161e1..0b32c81730a5 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -47,7 +47,7 @@ void __init at91_init_irq_default(void)
 void __init at91_init_interrupts(unsigned int *priority)
 {
        /* Initialize the AIC interrupt controller */
-        at91_aic_init(priority);
+        at91_aic_init(priority, at91_extern_irq);
        /* Enable GPIO interrupts */
        at91_gpio_irq_setup();
@@ -151,7 +151,7 @@ static void __init soc_detect(u32 dbgu_base)
        }
        /* at91sam9g10 */
-        if ((cidr & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) {
+        if ((socid & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) {
                at91_soc_initdata.type = AT91_SOC_SAM9G10;
                at91_boot_soc = at91sam9261_soc;
        }
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 715b690e5009..1947be8e5f5b 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -47,6 +47,7 @@
 #include <plat/fimc-core.h>
 #include <plat/iic-core.h>
 #include <plat/tv-core.h>
+#include <plat/spi-core.h>
 #include <plat/regs-serial.h>
 #include "common.h"
@@ -346,6 +347,8 @@ static void __init exynos4_map_io(void)
        s5p_fb_setname(0, "exynos4-fb");
        s5p_hdmi_setname("exynos4-hdmi");
+        s3c64xx_spi_setname("exynos4210-spi");
 }
 static void __init exynos5_map_io(void)
@@ -366,6 +369,8 @@ static void __init exynos5_map_io(void)
        s3c_i2c0_setname("s3c2440-i2c");
        s3c_i2c1_setname("s3c2440-i2c");
        s3c_i2c2_setname("s3c2440-i2c");
+        s3c64xx_spi_setname("exynos4210-spi");
 }
 static void __init exynos4_init_clocks(int xtal)
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index e58d786faf78..eadf4b59e7d2 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -99,6 +99,7 @@ static char const *exynos4_dt_compat[] __initdata = {
 DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
        /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
+        .smp            = smp_ops(exynos_smp_ops),
        .init_irq       = exynos4_init_irq,
        .map_io         = exynos4_dt_map_io,
        .handle_irq     = gic_handle_irq,
diff --git a/arch/arm/mach-imx/clk-busy.c b/arch/arm/mach-imx/clk-busy.c
index 1a7a8dd045a1..1ab91b5209e6 100644
--- a/arch/arm/mach-imx/clk-busy.c
+++ b/arch/arm/mach-imx/clk-busy.c
@@ -108,7 +108,7 @@ struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
        busy->div.hw.init = &init;
        clk = clk_register(NULL, &busy->div.hw);
-        if (!clk)
+        if (IS_ERR(clk))
                kfree(busy);
        return clk;
diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c
index d20d4795f4ea..01e2f843bf2e 100644
--- a/arch/arm/mach-imx/clk-imx25.c
+++ b/arch/arm/mach-imx/clk-imx25.c
@@ -127,8 +127,8 @@ int __init mx25_clocks_init(void)
        clk[esdhc2_ipg_per] = imx_clk_gate("esdhc2_ipg_per", "per4", ccm(CCM_CGCR0),  4);
        clk[gpt_ipg_per] = imx_clk_gate("gpt_ipg_per", "per5", ccm(CCM_CGCR0),  5);
        clk[i2c_ipg_per] = imx_clk_gate("i2c_ipg_per", "per6", ccm(CCM_CGCR0),  6);
-        clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per8", ccm(CCM_CGCR0),  7);
+        clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per7", ccm(CCM_CGCR0),  7);
-        clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "ipg_per", ccm(CCM_CGCR0),  8);
+        clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "per8", ccm(CCM_CGCR0),  8);
        clk[ssi1_ipg_per] = imx_clk_gate("ssi1_ipg_per", "per13", ccm(CCM_CGCR0), 13);
        clk[ssi2_ipg_per] = imx_clk_gate("ssi2_ipg_per", "per14", ccm(CCM_CGCR0), 14);
        clk[uart_ipg_per] = imx_clk_gate("uart_ipg_per", "per15", ccm(CCM_CGCR0), 15);
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index 3b6b640eed24..366e5d59d886 100644
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -109,7 +109,7 @@ int __init mx27_clocks_init(unsigned long fref)
        clk[per3_div] = imx_clk_divider("per3_div", "mpll_main2", CCM_PCDR1, 16, 6);
        clk[per4_div] = imx_clk_divider("per4_div", "mpll_main2", CCM_PCDR1, 24, 6);
        clk[vpu_sel] = imx_clk_mux("vpu_sel", CCM_CSCR, 21, 1, vpu_sel_clks, ARRAY_SIZE(vpu_sel_clks));
-        clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 3);
+        clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 6);
        clk[usb_div] = imx_clk_divider("usb_div", "spll", CCM_CSCR, 28, 3);
        clk[cpu_sel] = imx_clk_mux("cpu_sel", CCM_CSCR, 15, 1, cpu_sel_clks, ARRAY_SIZE(cpu_sel_clks));
        clk[clko_sel] = imx_clk_mux("clko_sel", CCM_CCSR, 0, 5, clko_sel_clks, ARRAY_SIZE(clko_sel_clks));
@@ -121,7 +121,7 @@ int __init mx27_clocks_init(unsigned long fref)
        clk[ssi1_sel] = imx_clk_mux("ssi1_sel", CCM_CSCR, 22, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks));
        clk[ssi2_sel] = imx_clk_mux("ssi2_sel", CCM_CSCR, 23, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks));
        clk[ssi1_div] = imx_clk_divider("ssi1_div", "ssi1_sel", CCM_PCDR0, 16, 6);
-        clk[ssi2_div] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 3);
+        clk[ssi2_div] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 6);
        clk[clko_en] = imx_clk_gate("clko_en", "clko_div", CCM_PCCR0, 0);
        clk[ssi2_ipg_gate] = imx_clk_gate("ssi2_ipg_gate", "ipg", CCM_PCCR0, 0);
        clk[ssi1_ipg_gate] = imx_clk_gate("ssi1_ipg_gate", "ipg", CCM_PCCR0, 1);
diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c
index 9d2c843bde02..b5deb0554552 100644
--- a/arch/arm/mach-imx/mm-imx3.c
+++ b/arch/arm/mach-imx/mm-imx3.c
@@ -108,9 +108,8 @@ void __init imx3_init_l2x0(void)
        }
        l2x0_base = ioremap(MX3x_L2CC_BASE_ADDR, 4096);
-        if (IS_ERR(l2x0_base)) {
+        if (!l2x0_base) {
-                printk(KERN_ERR "remapping L2 cache area failed with %ld\n",
+                printk(KERN_ERR "remapping L2 cache area failed\n");
-                                PTR_ERR(l2x0_base));
                return;
        }
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 2a1a898c7f90..d669e227e00c 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -11,7 +11,6 @@ config ARCH_OMAP2PLUS_TYPICAL
        select I2C_OMAP
        select MENELAUS if ARCH_OMAP2
        select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5
-        select PINCTRL
        select PM_RUNTIME
        select REGULATOR
        select SERIAL_OMAP
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 388c431c745a..d41ab98890ff 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -24,6 +24,7 @@
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 #include <linux/opp.h>
+#include <linux/cpu.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
@@ -444,27 +445,31 @@ static struct omap_board_mux board_mux[] __initdata = {
 };
 #endif
-static void __init beagle_opp_init(void)
+static int __init beagle_opp_init(void)
 {
        int r = 0;
-        /* Initialize the omap3 opp table */
+        if (!machine_is_omap3_beagle())
-        if (omap3_opp_init()) {
+                return 0;
+        /* Initialize the omap3 opp table if not already created. */
+        r = omap3_opp_init();
+        if (IS_ERR_VALUE(r) && (r != -EEXIST)) {
                pr_err("%s: opp default init failed\n", __func__);
-                return;
+                return r;
        }
        /* Custom OPP enabled for all xM versions */
        if (cpu_is_omap3630()) {
                struct device *mpu_dev, *iva_dev;
-                mpu_dev = omap_device_get_by_hwmod_name("mpu");
+                mpu_dev = get_cpu_device(0);
                iva_dev = omap_device_get_by_hwmod_name("iva");
                if (IS_ERR(mpu_dev) || IS_ERR(iva_dev)) {
                        pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
                                __func__, mpu_dev, iva_dev);
-                        return;
+                        return -ENODEV;
                }
                /* Enable MPU 1GHz and lower opps */
                r = opp_enable(mpu_dev, 800000000);
@@ -484,8 +489,9 @@ static void __init beagle_opp_init(void)
                        opp_disable(iva_dev, 660000000);
                }
        }
-        return;
+        return 0;
 }
+device_initcall(beagle_opp_init);
 static void __init omap3_beagle_init(void)
 {
@@ -522,8 +528,6 @@ static void __init omap3_beagle_init(void)
        /* Ensure SDRC pins are mux'd for self-refresh */
        omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
        omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
-        beagle_opp_init();
 }
 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
diff --git a/arch/arm/mach-omap2/clock33xx_data.c b/arch/arm/mach-omap2/clock33xx_data.c
index 114ab4b8e0e3..1a45d6bd2539 100644
--- a/arch/arm/mach-omap2/clock33xx_data.c
+++ b/arch/arm/mach-omap2/clock33xx_data.c
@@ -1073,6 +1073,8 @@ static struct omap_clk am33xx_clks[] = {
        CLK(NULL,       "gfx_fck_div_ck",       &gfx_fck_div_ck,        CK_AM33XX),
        CLK(NULL,       "sysclkout_pre_ck",     &sysclkout_pre_ck,      CK_AM33XX),
        CLK(NULL,       "clkout2_ck",           &clkout2_ck,    CK_AM33XX),
+        CLK(NULL,       "timer_32k_ck",         &clkdiv32k_ick, CK_AM33XX),
+        CLK(NULL,       "timer_sys_ck",         &sys_clkin_ck,  CK_AM33XX),
 };
 int __init am33xx_clk_init(void)
diff --git a/arch/arm/mach-omap2/mux34xx.c b/arch/arm/mach-omap2/mux34xx.c
index 17f80e4ab162..c47140bbbec4 100644
--- a/arch/arm/mach-omap2/mux34xx.c
+++ b/arch/arm/mach-omap2/mux34xx.c
@@ -614,16 +614,16 @@ static struct omap_mux __initdata omap3_muxmodes[] = {
                "sys_off_mode", NULL, NULL, NULL,
                "gpio_9", NULL, NULL, "safe_mode"),
        _OMAP3_MUXENTRY(UART1_CTS, 150,
-                "uart1_cts", NULL, NULL, NULL,
+                "uart1_cts", "ssi1_rdy_tx", NULL, NULL,
                "gpio_150", "hsusb3_tll_clk", NULL, "safe_mode"),
        _OMAP3_MUXENTRY(UART1_RTS, 149,
-                "uart1_rts", NULL, NULL, NULL,
+                "uart1_rts", "ssi1_flag_tx", NULL, NULL,
                "gpio_149", NULL, NULL, "safe_mode"),
        _OMAP3_MUXENTRY(UART1_RX, 151,
-                "uart1_rx", NULL, "mcbsp1_clkr", "mcspi4_clk",
+                "uart1_rx", "ss1_wake_tx", "mcbsp1_clkr", "mcspi4_clk",
                "gpio_151", NULL, NULL, "safe_mode"),
        _OMAP3_MUXENTRY(UART1_TX, 148,
-                "uart1_tx", NULL, NULL, NULL,
+                "uart1_tx", "ssi1_dat_tx", NULL, NULL,
                "gpio_148", NULL, NULL, "safe_mode"),
        _OMAP3_MUXENTRY(UART2_CTS, 144,
                "uart2_cts", "mcbsp3_dx", "gpt9_pwm_evt", NULL,
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 686137d164da..67d66131cfa7 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -91,6 +91,7 @@ extern void omap3_save_scratchpad_contents(void);
 #define PM_RTA_ERRATUM_i608             (1 << 0)
 #define PM_SDRC_WAKEUP_ERRATUM_i583     (1 << 1)
+#define PM_PER_MEMORIES_ERRATUM_i582    (1 << 2)
 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
 extern u16 pm34xx_errata;
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index ba670db1fd37..3a904de4313e 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -652,14 +652,17 @@ static void __init pm_errata_configure(void)
                /* Enable the l2 cache toggling in sleep logic */
                enable_omap3630_toggle_l2_on_restore();
                if (omap_rev() < OMAP3630_REV_ES1_2)
-                        pm34xx_errata |= PM_SDRC_WAKEUP_ERRATUM_i583;
+                        pm34xx_errata |= (PM_SDRC_WAKEUP_ERRATUM_i583 |
+                                          PM_PER_MEMORIES_ERRATUM_i582);
+        } else if (cpu_is_omap34xx()) {
+                pm34xx_errata |= PM_PER_MEMORIES_ERRATUM_i582;
        }
 }
 int __init omap3_pm_init(void)
 {
        struct power_state *pwrst, *tmp;
-        struct clockdomain *neon_clkdm, *mpu_clkdm;
+        struct clockdomain *neon_clkdm, *mpu_clkdm, *per_clkdm, *wkup_clkdm;
        int ret;
        if (!omap3_has_io_chain_ctrl())
@@ -711,6 +714,8 @@ int __init omap3_pm_init(void)
        neon_clkdm = clkdm_lookup("neon_clkdm");
        mpu_clkdm = clkdm_lookup("mpu_clkdm");
+        per_clkdm = clkdm_lookup("per_clkdm");
+        wkup_clkdm = clkdm_lookup("wkup_clkdm");
 #ifdef CONFIG_SUSPEND
        omap_pm_suspend = omap3_pm_suspend;
@@ -727,6 +732,27 @@ int __init omap3_pm_init(void)
        if (IS_PM34XX_ERRATUM(PM_RTA_ERRATUM_i608))
                omap3630_ctrl_disable_rta();
+        /*
+         * The UART3/4 FIFO and the sidetone memory in McBSP2/3 are
+         * not correctly reset when the PER powerdomain comes back
+         * from OFF or OSWR when the CORE powerdomain is kept active.
+         * See OMAP36xx Erratum i582 "PER Domain reset issue after
+         * Domain-OFF/OSWR Wakeup".  This wakeup dependency is not a
+         * complete workaround.  The kernel must also prevent the PER
+         * powerdomain from going to OSWR/OFF while the CORE
+         * powerdomain is not going to OSWR/OFF.  And if PER last
+         * power state was off while CORE last power state was ON, the
+         * UART3/4 and McBSP2/3 SIDETONE devices need to run a
+         * self-test using their loopback tests; if that fails, those
+         * devices are unusable until the PER/CORE can complete a transition
+         * from ON to OSWR/OFF and then back to ON.
+         *
+         * XXX Technically this workaround is only needed if off-mode
+         * or OSWR is enabled.
+         */
+        if (IS_PM34XX_ERRATUM(PM_PER_MEMORIES_ERRATUM_i582))
+                clkdm_add_wkdep(per_clkdm, wkup_clkdm);
        clkdm_add_wkdep(neon_clkdm, mpu_clkdm);
        if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
                omap3_secure_ram_storage =
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index 0405c8190803..a507cd6cf4f1 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -329,6 +329,11 @@ void __init omap_serial_init_port(struct omap_board_data *bdata,
        oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt);
+        if (console_uart_id == bdata->id) {
+                omap_device_enable(pdev);
+                pm_runtime_set_active(&pdev->dev);
+        }
        oh->dev_attr = uart;
        if (((cpu_is_omap34xx() || cpu_is_omap44xx()) && bdata->pads)
diff --git a/arch/arm/mach-s3c24xx/s3c2416.c b/arch/arm/mach-s3c24xx/s3c2416.c
index ed5a95ece9eb..77ee0b732237 100644
--- a/arch/arm/mach-s3c24xx/s3c2416.c
+++ b/arch/arm/mach-s3c24xx/s3c2416.c
@@ -61,6 +61,7 @@
 #include <plat/nand-core.h>
 #include <plat/adc-core.h>
 #include <plat/rtc-core.h>
+#include <plat/spi-core.h>
 static struct map_desc s3c2416_iodesc[] __initdata = {
        IODESC_ENT(WATCHDOG),
@@ -132,6 +133,7 @@ void __init s3c2416_map_io(void)
        /* initialize device information early */
        s3c2416_default_sdhci0();
        s3c2416_default_sdhci1();
+        s3c64xx_spi_setname("s3c2443-spi");
        iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
 }
diff --git a/arch/arm/mach-s3c24xx/s3c2443.c b/arch/arm/mach-s3c24xx/s3c2443.c
index ab648ad8fa50..165b6a6b3daa 100644
--- a/arch/arm/mach-s3c24xx/s3c2443.c
+++ b/arch/arm/mach-s3c24xx/s3c2443.c
@@ -43,6 +43,7 @@
 #include <plat/nand-core.h>
 #include <plat/adc-core.h>
 #include <plat/rtc-core.h>
+#include <plat/spi-core.h>
 static struct map_desc s3c2443_iodesc[] __initdata = {
        IODESC_ENT(WATCHDOG),
@@ -100,6 +101,9 @@ void __init s3c2443_map_io(void)
        s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull;
        s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull;
+        /* initialize device information early */
+        s3c64xx_spi_setname("s3c2443-spi");
        iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
 }
diff --git a/arch/arm/mach-s5p64x0/common.c b/arch/arm/mach-s5p64x0/common.c
index 6e6a0a9d6778..111e404a81fd 100644
--- a/arch/arm/mach-s5p64x0/common.c
+++ b/arch/arm/mach-s5p64x0/common.c
@@ -44,6 +44,7 @@
 #include <plat/sdhci.h>
 #include <plat/adc-core.h>
 #include <plat/fb-core.h>
+#include <plat/spi-core.h>
 #include <plat/gpio-cfg.h>
 #include <plat/regs-irqtype.h>
 #include <plat/regs-serial.h>
@@ -179,6 +180,7 @@ void __init s5p6440_map_io(void)
        /* initialize any device information early */
        s3c_adc_setname("s3c64xx-adc");
        s3c_fb_setname("s5p64x0-fb");
+        s3c64xx_spi_setname("s5p64x0-spi");
        s5p64x0_default_sdhci0();
        s5p64x0_default_sdhci1();
@@ -193,6 +195,7 @@ void __init s5p6450_map_io(void)
        /* initialize any device information early */
        s3c_adc_setname("s3c64xx-adc");
        s3c_fb_setname("s5p64x0-fb");
+        s3c64xx_spi_setname("s5p64x0-spi");
        s5p64x0_default_sdhci0();
        s5p64x0_default_sdhci1();
diff --git a/arch/arm/mach-s5pc100/common.c b/arch/arm/mach-s5pc100/common.c
index 621908658861..cc6e561c9958 100644
--- a/arch/arm/mach-s5pc100/common.c
+++ b/arch/arm/mach-s5pc100/common.c
@@ -45,6 +45,7 @@
 #include <plat/fb-core.h>
 #include <plat/iic-core.h>
 #include <plat/onenand-core.h>
+#include <plat/spi-core.h>
 #include <plat/regs-serial.h>
 #include <plat/watchdog-reset.h>
@@ -165,6 +166,8 @@ void __init s5pc100_map_io(void)
        s3c_onenand_setname("s5pc100-onenand");
        s3c_fb_setname("s5pc100-fb");
        s3c_cfcon_setname("s5pc100-pata");
+        s3c64xx_spi_setname("s5pc100-spi");
 }
 void __init s5pc100_init_clocks(int xtal)
diff --git a/arch/arm/mach-s5pv210/common.c b/arch/arm/mach-s5pv210/common.c
index 4c9e9027df9a..a0c50efe8145 100644
--- a/arch/arm/mach-s5pv210/common.c
+++ b/arch/arm/mach-s5pv210/common.c
@@ -43,6 +43,7 @@
 #include <plat/iic-core.h>
 #include <plat/keypad-core.h>
 #include <plat/tv-core.h>
+#include <plat/spi-core.h>
 #include <plat/regs-serial.h>
 #include "common.h"
@@ -196,6 +197,8 @@ void __init s5pv210_map_io(void)
        /* setup TV devices */
        s5p_hdmi_setname("s5pv210-hdmi");
+        s3c64xx_spi_setname("s5pv210-spi");
 }
 void __init s5pv210_init_clocks(int xtal)
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index 2917668f0091..ebbffc25f24f 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -247,7 +247,7 @@ void __init r8a7779_add_standard_devices(void)
 {
 #ifdef CONFIG_CACHE_L2X0
        /* Early BRESP enable, Shared attribute override enable, 64K*16way */
-        l2x0_init((void __iomem __force *)(0xf0100000), 0x40470000, 0x82000fff);
+        l2x0_init(IOMEM(0xf0100000), 0x40470000, 0x82000fff);
 #endif
        r8a7779_pm_init();
diff --git a/arch/arm/mach-spear13xx/include/mach/spear1310_misc_regs.h b/arch/arm/mach-spear13xx/include/mach/spear1310_misc_regs.h
deleted file mode 100644
index e69de29bb2d1..000000000000
--- a/arch/arm/mach-spear13xx/include/mach/spear1310_misc_regs.h
+++ /dev/null
diff --git a/arch/arm/mach-spear13xx/include/mach/spear1340_misc_regs.h b/arch/arm/mach-spear13xx/include/mach/spear1340_misc_regs.h
deleted file mode 100644
index e69de29bb2d1..000000000000
--- a/arch/arm/mach-spear13xx/include/mach/spear1340_misc_regs.h
+++ /dev/null
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 2236cbd03cd7..1f3fbc2bb776 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -16,6 +16,7 @@
 #include <linux/stat.h>
 #include <linux/of.h>
 #include <linux/of_irq.h>
+#include <linux/irq.h>
 #include <linux/platform_data/clk-ux500.h>
 #include <asm/hardware/gic.h>
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index b9f60ebe3bc4..b820edaf3184 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -745,7 +745,7 @@ do_alignment_t32_to_handler(unsigned long *pinstr, struct pt_regs *regs,
 static int
 do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
-        union offset_union offset;
+        union offset_union uninitialized_var(offset);
        unsigned long instr = 0, instrptr;
        int (*handler)(unsigned long addr, unsigned long instr, struct pt_regs *regs);
        unsigned int type;
@@ -856,8 +856,10 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
                if (thumb2_32b) {
                        offset.un = 0;
                        handler = do_alignment_t32_to_handler(&instr, regs, &offset);
-                } else
+                } else {
+                        offset.un = 0;
                        handler = do_alignment_ldmstm;
+                }
                break;
        default:
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 477a2d23ddf1..58bc3e4d3bd0 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -610,7 +610,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
                         gfp_t gfp, pgprot_t prot, bool is_coherent, const void *caller)
 {
        u64 mask = get_coherent_dma_mask(dev);
-        struct page *page;
+        struct page *page = NULL;
        void *addr;
 #ifdef CONFIG_DMA_API_DEBUG
diff --git a/arch/arm/mm/vmregion.h b/arch/arm/mm/vmregion.h
index bf312c354a21..0f5a5f2a2c7b 100644
--- a/arch/arm/mm/vmregion.h
+++ b/arch/arm/mm/vmregion.h
@@ -17,7 +17,6 @@ struct arm_vmregion {
        struct list_head        vm_list;
        unsigned long           vm_start;
        unsigned long           vm_end;
-        void                    *priv;
        int                     vm_active;
        const void              *caller;
 };
diff --git a/arch/arm/plat-mxc/devices/platform-mxc-mmc.c b/arch/arm/plat-mxc/devices/platform-mxc-mmc.c
index 540d3a7d92df..e7b920b58675 100644
--- a/arch/arm/plat-mxc/devices/platform-mxc-mmc.c
+++ b/arch/arm/plat-mxc/devices/platform-mxc-mmc.c
@@ -55,7 +55,7 @@ struct platform_device *__init imx_add_mxc_mmc(
        struct resource res[] = {
                {
                        .start = data->iobase,
-                        .end = data->iobase + SZ_4K - 1,
+                        .end = data->iobase + data->iosize - 1,
                        .flags = IORESOURCE_MEM,
                }, {
                        .start = data->irq,
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 7cd56ed5cd94..82fcb206b5b2 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -26,6 +26,7 @@ config ARCH_OMAP2PLUS
        select CLKDEV_LOOKUP
        select GENERIC_IRQ_CHIP
        select OMAP_DM_TIMER
+        select PINCTRL
        select PROC_DEVICETREE if PROC_FS
        select SPARSE_IRQ
        select USE_OF
diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h
index f4a4cd014795..1957a8516e93 100644
--- a/arch/arm/plat-omap/include/plat/omap-serial.h
+++ b/arch/arm/plat-omap/include/plat/omap-serial.h
@@ -40,10 +40,10 @@
 #define OMAP_UART_WER_MOD_WKUP  0X7F
 /* Enable XON/XOFF flow control on output */
-#define OMAP_UART_SW_TX         0x8
+#define OMAP_UART_SW_TX         0x04
 /* Enable XON/XOFF flow control on input */
-#define OMAP_UART_SW_RX         0x2
+#define OMAP_UART_SW_RX         0x04
 #define OMAP_UART_SYSC_RESET    0X07
 #define OMAP_UART_TCR_TRIG      0X0F
diff --git a/arch/arm/plat-samsung/include/plat/spi-core.h b/arch/arm/plat-samsung/include/plat/spi-core.h
new file mode 100644
index 000000000000..0b9428ab3fc3
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/spi-core.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2012 Heiko Stuebner <heiko@sntech.de>
+ *
+ * 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.
+ */
+#ifndef __PLAT_S3C_SPI_CORE_H
+#define __PLAT_S3C_SPI_CORE_H
+/* These functions are only for use with the core support code, such as
+ * the cpu specific initialisation code
+ */
+/* re-define device name depending on support. */
+static inline void s3c64xx_spi_setname(char *name)
+{
+#ifdef CONFIG_S3C64XX_DEV_SPI0
+        s3c64xx_device_spi0.name = name;
+#endif
+#ifdef CONFIG_S3C64XX_DEV_SPI1
+        s3c64xx_device_spi1.name = name;
+#endif
+#ifdef CONFIG_S3C64XX_DEV_SPI2
+        s3c64xx_device_spi2.name = name;
+#endif
+}
+#endif /* __PLAT_S3C_SPI_CORE_H */
diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile
index 635cb1865e4d..cd60a81163e9 100644
--- a/arch/arm/tools/Makefile
+++ b/arch/arm/tools/Makefile
@@ -5,6 +5,6 @@
 #
 include/generated/mach-types.h: $(src)/gen-mach-types $(src)/mach-types
-        @echo '  Generating $@'
+        $(kecho) '  Generating $@'
        @mkdir -p $(dir $@)
        $(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; }
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index c834b32af275..3b44e0dd0a93 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -701,11 +701,14 @@ static int __init vfp_init(void)
                        elf_hwcap |= HWCAP_VFPv3;
                        /*
-                         * Check for VFPv3 D16. CPUs in this configuration
+                         * Check for VFPv3 D16 and VFPv4 D16.  CPUs in
-                         * only have 16 x 64bit registers.
+                         * this configuration only have 16 x 64bit
+                         * registers.
                         */
                        if (((fmrx(MVFR0) & MVFR0_A_SIMD_MASK)) == 1)
-                                elf_hwcap |= HWCAP_VFPv3D16;
+                                elf_hwcap |= HWCAP_VFPv3D16; /* also v4-D16 */
+                        else
+                                elf_hwcap |= HWCAP_VFPD32;
                }
 #endif
                /*
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index 59bcb96ac369..f57609275449 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -166,3 +166,14 @@ void free_xenballooned_pages(int nr_pages, struct page **pages)
        *pages = NULL;
 }
 EXPORT_SYMBOL_GPL(free_xenballooned_pages);
+/* In the hypervisor.S file. */
+EXPORT_SYMBOL_GPL(HYPERVISOR_event_channel_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_grant_table_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_xen_version);
+EXPORT_SYMBOL_GPL(HYPERVISOR_console_io);
+EXPORT_SYMBOL_GPL(HYPERVISOR_sched_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_hvm_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_memory_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_physdev_op);
+EXPORT_SYMBOL_GPL(privcmd_call);
diff --git a/arch/arm/xen/grant-table.c b/arch/arm/xen/grant-table.c
index dbd1330c0196..859a9bb002d5 100644
--- a/arch/arm/xen/grant-table.c
+++ b/arch/arm/xen/grant-table.c
@@ -33,7 +33,7 @@
 #include <xen/page.h>
 #include <xen/grant_table.h>
-int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
+int arch_gnttab_map_shared(xen_pfn_t *frames, unsigned long nr_gframes,
                           unsigned long max_nr_gframes,
                           void **__shared)
 {
diff --git a/arch/arm/xen/hypercall.S b/arch/arm/xen/hypercall.S
index 074f5ed101b9..71f723984cbd 100644
--- a/arch/arm/xen/hypercall.S
+++ b/arch/arm/xen/hypercall.S
@@ -48,20 +48,16 @@
 #include <linux/linkage.h>
 #include <asm/assembler.h>
+#include <asm/opcodes-virt.h>
 #include <xen/interface/xen.h>
-/* HVC 0xEA1 */
+#define XEN_IMM 0xEA1
-#ifdef CONFIG_THUMB2_KERNEL
-#define xen_hvc .word 0xf7e08ea1
-#else
-#define xen_hvc .word 0xe140ea71
-#endif
 #define HYPERCALL_SIMPLE(hypercall)             \
 ENTRY(HYPERVISOR_##hypercall)                   \
        mov r12, #__HYPERVISOR_##hypercall;     \
-        xen_hvc;                                                        \
+        __HVC(XEN_IMM);                                         \
        mov pc, lr;                                                     \
 ENDPROC(HYPERVISOR_##hypercall)
@@ -76,7 +72,7 @@ ENTRY(HYPERVISOR_##hypercall)			\
        stmdb sp!, {r4}                                         \
        ldr r4, [sp, #4]                                        \
        mov r12, #__HYPERVISOR_##hypercall;     \
-        xen_hvc                                                         \
+        __HVC(XEN_IMM);                                         \
        ldm sp!, {r4}                                           \
        mov pc, lr                                                      \
 ENDPROC(HYPERVISOR_##hypercall)
@@ -100,7 +96,7 @@ ENTRY(privcmd_call)
        mov r2, r3
        ldr r3, [sp, #8]
        ldr r4, [sp, #4]
-        xen_hvc
+        __HVC(XEN_IMM)
        ldm sp!, {r4}
        mov pc, lr
 ENDPROC(privcmd_call);
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index ef54a59a9e89..15ac18a56c93 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1,6 +1,7 @@
 config ARM64
        def_bool y
        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+        select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
        select GENERIC_CLOCKEVENTS
        select GENERIC_HARDIRQS_NO_DEPRECATED
        select GENERIC_IOMAP
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index cf284649dfcb..07fea290d7c1 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -25,12 +25,10 @@
 #include <asm/user.h>
 typedef unsigned long elf_greg_t;
-typedef unsigned long elf_freg_t[3];
 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+typedef struct user_fpsimd_state elf_fpregset_t;
-typedef struct user_fp elf_fpregset_t;
 #define EM_AARCH64              183
@@ -87,7 +85,6 @@ typedef struct user_fp elf_fpregset_t;
 #define R_AARCH64_MOVW_PREL_G2_NC       292
 #define R_AARCH64_MOVW_PREL_G3          293
 /*
 * These are used to set parameters in the core dumps.
 */
diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h
index b42fab9f62a9..c43b4ac13008 100644
--- a/arch/arm64/include/asm/fpsimd.h
+++ b/arch/arm64/include/asm/fpsimd.h
@@ -25,9 +25,8 @@
 *  - FPSR and FPCR
 *  - 32 128-bit data registers
 *
- * Note that user_fp forms a prefix of this structure, which is relied
+ * Note that user_fpsimd forms a prefix of this structure, which is
- * upon in the ptrace FP/SIMD accessors. struct user_fpsimd_state must
+ * relied upon in the ptrace FP/SIMD accessors.
- * form a prefix of struct fpsimd_state.
 */
 struct fpsimd_state {
        union {
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 74a2a7d304a9..54f6116697f7 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -114,7 +114,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr)
 *  I/O port access primitives.
 */
 #define IO_SPACE_LIMIT          0xffff
-#define PCI_IOBASE              ((void __iomem *)0xffffffbbfffe0000UL)
+#define PCI_IOBASE              ((void __iomem *)(MODULES_VADDR - SZ_2M))
 static inline u8 inb(unsigned long addr)
 {
@@ -225,9 +225,9 @@ extern void __iounmap(volatile void __iomem *addr);
 #define PROT_DEVICE_nGnRE       (PROT_DEFAULT | PTE_XN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
 #define PROT_NORMAL_NC          (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC))
-#define ioremap(addr, size)             __ioremap((addr), (size), PROT_DEVICE_nGnRE)
+#define ioremap(addr, size)             __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
-#define ioremap_nocache(addr, size)     __ioremap((addr), (size), PROT_DEVICE_nGnRE)
+#define ioremap_nocache(addr, size)     __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
-#define ioremap_wc(addr, size)          __ioremap((addr), (size), PROT_NORMAL_NC)
+#define ioremap_wc(addr, size)          __ioremap((addr), (size), __pgprot(PROT_NORMAL_NC))
 #define iounmap                         __iounmap
 #define ARCH_HAS_IOREMAP_WC
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 5d810044feda..77f696c14339 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -43,6 +43,8 @@
 #else
 #define STACK_TOP               STACK_TOP_MAX
 #endif /* CONFIG_COMPAT */
+#define ARCH_LOW_ADDRESS_LIMIT  PHYS_MASK
 #endif /* __KERNEL__ */
 struct debug_info {
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 63f853f8b718..68aff2816e86 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -14,7 +14,6 @@
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifdef CONFIG_COMPAT
-#define __ARCH_WANT_COMPAT_IPC_PARSE_VERSION
 #define __ARCH_WANT_COMPAT_STAT64
 #define __ARCH_WANT_SYS_GETHOSTNAME
 #define __ARCH_WANT_SYS_PAUSE
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index ecbf2d81ec5c..c76c7241125b 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -613,17 +613,11 @@ enum armv8_pmuv3_perf_types {
        ARMV8_PMUV3_PERFCTR_BUS_ACCESS                          = 0x19,
        ARMV8_PMUV3_PERFCTR_MEM_ERROR                           = 0x1A,
        ARMV8_PMUV3_PERFCTR_BUS_CYCLES                          = 0x1D,
-        /*
-         * This isn't an architected event.
-         * We detect this event number and use the cycle counter instead.
-         */
-        ARMV8_PMUV3_PERFCTR_CPU_CYCLES                          = 0xFF,
 };
 /* PMUv3 HW events mapping. */
 static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = {
-        [PERF_COUNT_HW_CPU_CYCLES]              = ARMV8_PMUV3_PERFCTR_CPU_CYCLES,
+        [PERF_COUNT_HW_CPU_CYCLES]              = ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES,
        [PERF_COUNT_HW_INSTRUCTIONS]            = ARMV8_PMUV3_PERFCTR_INSTR_EXECUTED,
        [PERF_COUNT_HW_CACHE_REFERENCES]        = ARMV8_PMUV3_PERFCTR_L1_DCACHE_ACCESS,
        [PERF_COUNT_HW_CACHE_MISSES]            = ARMV8_PMUV3_PERFCTR_L1_DCACHE_REFILL,
@@ -1106,7 +1100,7 @@ static int armv8pmu_get_event_idx(struct pmu_hw_events *cpuc,
        unsigned long evtype = event->config_base & ARMV8_EVTYPE_EVENT;
        /* Always place a cycle counter into the cycle counter. */
-        if (evtype == ARMV8_PMUV3_PERFCTR_CPU_CYCLES) {
+        if (evtype == ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES) {
                if (test_and_set_bit(ARMV8_IDX_CYCLE_COUNTER, cpuc->used_mask))
                        return -EAGAIN;
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index f22965ea1cfc..e04cebdbb47f 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -310,24 +310,6 @@ struct task_struct *__switch_to(struct task_struct *prev,
 }
 /*
- * Fill in the task's elfregs structure for a core dump.
- */
-int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs)
-{
-        elf_core_copy_regs(elfregs, task_pt_regs(t));
-        return 1;
-}
-/*
- * fill in the fpe structure for a core dump...
- */
-int dump_fpu (struct pt_regs *regs, struct user_fp *fp)
-{
-        return 0;
-}
-EXPORT_SYMBOL(dump_fpu);
-/*
 * Shuffle the argument into the correct register before calling the
 * thread function.  x1 is the thread argument, x2 is the pointer to
 * the thread function, and x3 points to the exit function.
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 226b6bf6e9c2..538300f2273d 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -211,8 +211,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
         * before we continue.
         */
        set_cpu_online(cpu, true);
-        while (!cpu_active(cpu))
+        complete(&cpu_running);
-                cpu_relax();
        /*
         * OK, it's off to the idle thread for us
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index efbf7df05d3f..4cd28931dba9 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -80,7 +80,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 #ifdef CONFIG_ZONE_DMA32
        /* 4GB maximum for 32-bit only capable devices */
        max_dma32 = min(max, MAX_DMA32_PFN);
-        zone_size[ZONE_DMA32] = max_dma32 - min;
+        zone_size[ZONE_DMA32] = max(min, max_dma32) - min;
 #endif
        zone_size[ZONE_NORMAL] = max - max_dma32;
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index b7412504f08a..df2eb4bd9fa2 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -13,6 +13,7 @@ config FRV
        select GENERIC_CPU_DEVICES
        select ARCH_WANT_IPC_PARSE_VERSION
        select GENERIC_KERNEL_THREAD
+        select GENERIC_KERNEL_EXECVE
 config ZONE_DMA
        bool
diff --git a/arch/frv/boot/Makefile b/arch/frv/boot/Makefile
index 6ae3254da019..636d5bbcd53f 100644
--- a/arch/frv/boot/Makefile
+++ b/arch/frv/boot/Makefile
@@ -17,6 +17,8 @@ PARAMS_PHYS	 = 0x0207c000
 INITRD_PHYS      = 0x02180000
 INITRD_VIRT      = 0x02180000
+OBJCOPYFLAGS    :=-O binary -R .note -R .note.gnu.build-id -R .comment
 #
 # If you don't define ZRELADDR above,
 # then it defaults to ZTEXTADDR
@@ -32,18 +34,18 @@ Image: $(obj)/Image
 targets: $(obj)/Image
 $(obj)/Image: vmlinux FORCE
-        $(OBJCOPY) -O binary -R .note -R .comment -S vmlinux $@
+        $(OBJCOPY) $(OBJCOPYFLAGS) -S vmlinux $@
 #$(obj)/Image:  $(CONFIGURE) $(SYSTEM)
-#       $(OBJCOPY) -O binary -R .note -R .comment -g -S $(SYSTEM) $@
+#       $(OBJCOPY) $(OBJCOPYFLAGS) -g -S $(SYSTEM) $@
 bzImage: zImage
 zImage: $(CONFIGURE) compressed/$(LINUX)
-        $(OBJCOPY) -O binary -R .note -R .comment -S compressed/$(LINUX) $@
+        $(OBJCOPY) $(OBJCOPYFLAGS) -S compressed/$(LINUX) $@
 bootpImage: bootp/bootp
-        $(OBJCOPY) -O binary -R .note -R .comment -S bootp/bootp $@
+        $(OBJCOPY) $(OBJCOPYFLAGS) -S bootp/bootp $@
 compressed/$(LINUX): $(LINUX) dep
        @$(MAKE) -C compressed $(LINUX)
diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h
index 266a5b25a0c1..2358634cacca 100644
--- a/arch/frv/include/asm/unistd.h
+++ b/arch/frv/include/asm/unistd.h
@@ -30,7 +30,6 @@
 #define __ARCH_WANT_SYS_RT_SIGACTION
 #define __ARCH_WANT_SYS_RT_SIGSUSPEND
 #define __ARCH_WANT_SYS_EXECVE
-#define __ARCH_WANT_KERNEL_EXECVE
 /*
 * "Conditional" syscalls
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index ee0beb354e4d..dfcd263c0517 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -869,11 +869,6 @@ ret_from_kernel_thread:
        call            schedule_tail
        calll.p         @(gr21,gr0)
        or              gr20,gr20,gr8
-        bra             sys_exit
-        .globl          ret_from_kernel_execve
-ret_from_kernel_execve:
-        ori             gr28,0,sp
        bra             __syscall_exit
 ###################################################################################################
@@ -1080,27 +1075,10 @@ __entry_return_from_kernel_interrupt:
        subicc          gr5,#0,gr0,icc0
        beq             icc0,#0,__entry_return_direct
-__entry_preempt_need_resched:
+        subcc           gr0,gr0,gr0,icc2                /* set Z and clear C */
-        ldi             @(gr15,#TI_FLAGS),gr4
+        call            preempt_schedule_irq
-        andicc          gr4,#_TIF_NEED_RESCHED,gr0,icc0
-        beq             icc0,#1,__entry_return_direct
-        setlos          #PREEMPT_ACTIVE,gr5
-        sti             gr5,@(gr15,#TI_FLAGS)
-        andi            gr23,#~PSR_PIL,gr23
-        movgs           gr23,psr
-        call            schedule
-        sti             gr0,@(gr15,#TI_PRE_COUNT)
-        movsg           psr,gr23
-        ori             gr23,#PSR_PIL_14,gr23
-        movgs           gr23,psr
-        bra             __entry_preempt_need_resched
-#else
-        bra             __entry_return_direct
 #endif
+        bra             __entry_return_direct
 ###############################################################################
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index e1e3aa196aa4..7e33215f1d8f 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -181,6 +181,9 @@ int copy_thread(unsigned long clone_flags,
        childregs = (struct pt_regs *)
                (task_stack_page(p) + THREAD_SIZE - FRV_FRAME0_SIZE);
+        /* set up the userspace frame (the only place that the USP is stored) */
+        *childregs = *__kernel_frame0_ptr;
        p->set_child_tid = p->clear_child_tid = NULL;
        p->thread.frame  = childregs;
@@ -191,10 +194,8 @@ int copy_thread(unsigned long clone_flags,
        p->thread.frame0 = childregs;
        if (unlikely(!regs)) {
-                memset(childregs, 0, sizeof(struct pt_regs));
                childregs->gr9 = usp; /* function */
                childregs->gr8 = arg;
-                childregs->psr = PSR_S;
                p->thread.pc = (unsigned long) ret_from_kernel_thread;
                save_user_regs(p->thread.user);
                return 0;
diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c
index e47857f889b6..b99c2a7cc7a4 100644
--- a/arch/frv/mb93090-mb00/pci-dma-nommu.c
+++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c
@@ -11,6 +11,7 @@
 #include <linux/types.h>
 #include <linux/slab.h>
+#include <linux/export.h>
 #include <linux/dma-mapping.h>
 #include <linux/list.h>
 #include <linux/pci.h>
diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h
index c6350283649d..05887a1d80e5 100644
--- a/arch/h8300/include/asm/cache.h
+++ b/arch/h8300/include/asm/cache.h
@@ -2,7 +2,8 @@
 #define __ARCH_H8300_CACHE_H
 /* bytes per L1 cache line */
-#define        L1_CACHE_BYTES  4
+#define        L1_CACHE_SHIFT  2
+#define        L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
 /* m68k-elf-gcc  2.95.2 doesn't like these */
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index 4a159da23633..dd02f09b6eda 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -1,3 +1,4 @@
 generic-y += clkdev.h
 generic-y += exec.h
+generic-y += kvm_para.h
diff --git a/arch/ia64/include/asm/kvm_para.h b/arch/ia64/include/asm/kvm_para.h
deleted file mode 100644
index 47c00f910434..000000000000
--- a/arch/ia64/include/asm/kvm_para.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2007 Xiantao Zhang <xiantao.zhang@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA 02111-1307 USA.
- *
- */
-#ifndef __IA64_KVM_PARA_H
-#define __IA64_KVM_PARA_H
-#include <uapi/asm/kvm_para.h>
-static inline unsigned int kvm_arch_para_features(void)
-{
-        return 0;
-}
-static inline bool kvm_check_and_clear_guest_paused(void)
-{
-        return false;
-}
-#endif
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index ecb540810ab3..88fa3ac86fae 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -1,5 +1,3 @@
-include include/asm-generic/Kbuild.asm
-header-y += cachectl.h
 generic-y += bitsperlong.h
 generic-y += clkdev.h
diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h
index 5e08b597f012..0f717045bdde 100644
--- a/arch/m68k/include/asm/ptrace.h
+++ b/arch/m68k/include/asm/ptrace.h
@@ -1,82 +1,10 @@
 #ifndef _M68K_PTRACE_H
 #define _M68K_PTRACE_H
-#define PT_D1      0
+#include <uapi/asm/ptrace.h>
-#define PT_D2      1
-#define PT_D3      2
-#define PT_D4      3
-#define PT_D5      4
-#define PT_D6      5
-#define PT_D7      6
-#define PT_A0      7
-#define PT_A1      8
-#define PT_A2      9
-#define PT_A3      10
-#define PT_A4      11
-#define PT_A5      12
-#define PT_A6      13
-#define PT_D0      14
-#define PT_USP     15
-#define PT_ORIG_D0 16
-#define PT_SR      17
-#define PT_PC      18
 #ifndef __ASSEMBLY__
-/* this struct defines the way the registers are stored on the
-   stack during a system call. */
-struct pt_regs {
-  long     d1;
-  long     d2;
-  long     d3;
-  long     d4;
-  long     d5;
-  long     a0;
-  long     a1;
-  long     a2;
-  long     d0;
-  long     orig_d0;
-  long     stkadj;
-#ifdef CONFIG_COLDFIRE
-  unsigned format :  4; /* frame format specifier */
-  unsigned vector : 12; /* vector offset */
-  unsigned short sr;
-  unsigned long  pc;
-#else
-  unsigned short sr;
-  unsigned long  pc;
-  unsigned format :  4; /* frame format specifier */
-  unsigned vector : 12; /* vector offset */
-#endif
-};
-/*
- * This is the extended stack used by signal handlers and the context
- * switcher: it's pushed after the normal "struct pt_regs".
- */
-struct switch_stack {
-        unsigned long  d6;
-        unsigned long  d7;
-        unsigned long  a3;
-        unsigned long  a4;
-        unsigned long  a5;
-        unsigned long  a6;
-        unsigned long  retpc;
-};
-/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
-#define PTRACE_GETREGS            12
-#define PTRACE_SETREGS            13
-#define PTRACE_GETFPREGS          14
-#define PTRACE_SETFPREGS          15
-#define PTRACE_GET_THREAD_AREA    25
-#define PTRACE_SINGLEBLOCK      33      /* resume execution until next branch */
-#ifdef __KERNEL__
 #ifndef PS_S
 #define PS_S  (0x2000)
 #define PS_M  (0x1000)
@@ -94,6 +22,5 @@ struct switch_stack {
 #define arch_has_block_step()   (1)
 #endif
-#endif /* __KERNEL__ */
 #endif /* __ASSEMBLY__ */
 #endif /* _M68K_PTRACE_H */
diff --git a/arch/m68k/include/asm/setup.h b/arch/m68k/include/asm/setup.h
index 00c2c5397d37..65e78a2dad64 100644
--- a/arch/m68k/include/asm/setup.h
+++ b/arch/m68k/include/asm/setup.h
@@ -19,33 +19,12 @@
 **   Redesign of the boot information structure; moved boot information
 **   structure to bootinfo.h
 */
 #ifndef _M68K_SETUP_H
 #define _M68K_SETUP_H
+#include <uapi/asm/setup.h>
-    /*
-     *  Linux/m68k Architectures
-     */
-#define MACH_AMIGA    1
-#define MACH_ATARI    2
-#define MACH_MAC      3
-#define MACH_APOLLO   4
-#define MACH_SUN3     5
-#define MACH_MVME147  6
-#define MACH_MVME16x  7
-#define MACH_BVME6000 8
-#define MACH_HP300    9
-#define MACH_Q40     10
-#define MACH_SUN3X   11
-#define MACH_M54XX   12
-#define COMMAND_LINE_SIZE 256
-#ifdef __KERNEL__
 #define CL_SIZE COMMAND_LINE_SIZE
 #ifndef __ASSEMBLY__
@@ -194,63 +173,6 @@ extern unsigned long m68k_machtype;
 #  define MACH_TYPE (m68k_machtype)
 #endif
-#endif /* __KERNEL__ */
-    /*
-     *  CPU, FPU and MMU types
-     *
-     *  Note: we may rely on the following equalities:
-     *
-     *      CPU_68020 == MMU_68851
-     *      CPU_68030 == MMU_68030
-     *      CPU_68040 == FPU_68040 == MMU_68040
-     *      CPU_68060 == FPU_68060 == MMU_68060
-     */
-#define CPUB_68020     0
-#define CPUB_68030     1
-#define CPUB_68040     2
-#define CPUB_68060     3
-#define CPUB_COLDFIRE  4
-#define CPU_68020      (1<<CPUB_68020)
-#define CPU_68030      (1<<CPUB_68030)
-#define CPU_68040      (1<<CPUB_68040)
-#define CPU_68060      (1<<CPUB_68060)
-#define CPU_COLDFIRE   (1<<CPUB_COLDFIRE)
-#define FPUB_68881     0
-#define FPUB_68882     1
-#define FPUB_68040     2                       /* Internal FPU */
-#define FPUB_68060     3                       /* Internal FPU */
-#define FPUB_SUNFPA    4                       /* Sun-3 FPA */
-#define FPUB_COLDFIRE  5                       /* ColdFire FPU */
-#define FPU_68881      (1<<FPUB_68881)
-#define FPU_68882      (1<<FPUB_68882)
-#define FPU_68040      (1<<FPUB_68040)
-#define FPU_68060      (1<<FPUB_68060)
-#define FPU_SUNFPA     (1<<FPUB_SUNFPA)
-#define FPU_COLDFIRE   (1<<FPUB_COLDFIRE)
-#define MMUB_68851     0
-#define MMUB_68030     1                       /* Internal MMU */
-#define MMUB_68040     2                       /* Internal MMU */
-#define MMUB_68060     3                       /* Internal MMU */
-#define MMUB_APOLLO    4                       /* Custom Apollo */
-#define MMUB_SUN3      5                       /* Custom Sun-3 */
-#define MMUB_COLDFIRE  6                       /* Internal MMU */
-#define MMU_68851      (1<<MMUB_68851)
-#define MMU_68030      (1<<MMUB_68030)
-#define MMU_68040      (1<<MMUB_68040)
-#define MMU_68060      (1<<MMUB_68060)
-#define MMU_SUN3       (1<<MMUB_SUN3)
-#define MMU_APOLLO     (1<<MMUB_APOLLO)
-#define MMU_COLDFIRE   (1<<MMUB_COLDFIRE)
-#ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 extern unsigned long m68k_cputype;
@@ -385,6 +307,4 @@ extern int m68k_realnum_memory;		/* real # of memory blocks found */
 extern struct mem_info m68k_memory[NUM_MEMINFO];/* memory description */
 #endif
-#endif /* __KERNEL__ */
 #endif /* _M68K_SETUP_H */
diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h
index 60e88660169c..67e489d8d1bd 100644
--- a/arch/m68k/include/asm/signal.h
+++ b/arch/m68k/include/asm/signal.h
@@ -1,12 +1,8 @@
 #ifndef _M68K_SIGNAL_H
 #define _M68K_SIGNAL_H
-#include <linux/types.h>
+#include <uapi/asm/signal.h>
-/* Avoid too many header ordering problems.  */
-struct siginfo;
-#ifdef __KERNEL__
 /* Most things should be clean enough to redefine this at will, if care
   is taken to make libc match.  */
@@ -20,92 +16,6 @@ typedef struct {
        unsigned long sig[_NSIG_WORDS];
 } sigset_t;
-#else
-/* Here we must cater to libcs that poke about in kernel headers.  */
-#define NSIG            32
-typedef unsigned long sigset_t;
-#endif /* __KERNEL__ */
-#define SIGHUP           1
-#define SIGINT           2
-#define SIGQUIT          3
-#define SIGILL           4
-#define SIGTRAP          5
-#define SIGABRT          6
-#define SIGIOT           6
-#define SIGBUS           7
-#define SIGFPE           8
-#define SIGKILL          9
-#define SIGUSR1         10
-#define SIGSEGV         11
-#define SIGUSR2         12
-#define SIGPIPE         13
-#define SIGALRM         14
-#define SIGTERM         15
-#define SIGSTKFLT       16
-#define SIGCHLD         17
-#define SIGCONT         18
-#define SIGSTOP         19
-#define SIGTSTP         20
-#define SIGTTIN         21
-#define SIGTTOU         22
-#define SIGURG          23
-#define SIGXCPU         24
-#define SIGXFSZ         25
-#define SIGVTALRM       26
-#define SIGPROF         27
-#define SIGWINCH        28
-#define SIGIO           29
-#define SIGPOLL         SIGIO
-/*
-#define SIGLOST         29
-*/
-#define SIGPWR          30
-#define SIGSYS          31
-#define SIGUNUSED       31
-/* These should not be considered constants from userland.  */
-#define SIGRTMIN        32
-#define SIGRTMAX        _NSIG
-/*
- * SA_FLAGS values:
- *
- * SA_ONSTACK indicates that a registered stack_t will be used.
- * SA_RESTART flag to get restarting signals (which were the default long ago)
- * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
- * SA_RESETHAND clears the handler when the signal is delivered.
- * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
- * SA_NODEFER prevents the current signal from being masked in the handler.
- *
- * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
- * Unix names RESETHAND and NODEFER respectively.
- */
-#define SA_NOCLDSTOP    0x00000001
-#define SA_NOCLDWAIT    0x00000002
-#define SA_SIGINFO      0x00000004
-#define SA_ONSTACK      0x08000000
-#define SA_RESTART      0x10000000
-#define SA_NODEFER      0x40000000
-#define SA_RESETHAND    0x80000000
-#define SA_NOMASK       SA_NODEFER
-#define SA_ONESHOT      SA_RESETHAND
-/*
- * sigaltstack controls
- */
-#define SS_ONSTACK      1
-#define SS_DISABLE      2
-#define MINSIGSTKSZ     2048
-#define SIGSTKSZ        8192
-#include <asm-generic/signal-defs.h>
-#ifdef __KERNEL__
 struct old_sigaction {
        __sighandler_t sa_handler;
        old_sigset_t sa_mask;
@@ -123,31 +33,6 @@ struct sigaction {
 struct k_sigaction {
        struct sigaction sa;
 };
-#else
-/* Here we must cater to libcs that poke about in kernel headers.  */
-struct sigaction {
-        union {
-          __sighandler_t _sa_handler;
-          void (*_sa_sigaction)(int, struct siginfo *, void *);
-        } _u;
-        sigset_t sa_mask;
-        unsigned long sa_flags;
-        void (*sa_restorer)(void);
-};
-#define sa_handler      _u._sa_handler
-#define sa_sigaction    _u._sa_sigaction
-#endif /* __KERNEL__ */
-typedef struct sigaltstack {
-        void __user *ss_sp;
-        int ss_flags;
-        size_t ss_size;
-} stack_t;
-#ifdef __KERNEL__
 #include <asm/sigcontext.h>
 #ifndef CONFIG_CPU_HAS_NO_BITFIELDS
@@ -208,5 +93,4 @@ struct pt_regs;
 extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
 #endif /* __uClinux__ */
-#endif /* __KERNEL__ */
 #endif /* _M68K_SIGNAL_H */
diff --git a/arch/m68k/include/asm/termios.h b/arch/m68k/include/asm/termios.h
index 0823032e4045..ad8efb098663 100644
--- a/arch/m68k/include/asm/termios.h
+++ b/arch/m68k/include/asm/termios.h
@@ -1,27 +1,8 @@
 #ifndef _M68K_TERMIOS_H
 #define _M68K_TERMIOS_H
-#include <asm/termbits.h>
+#include <uapi/asm/termios.h>
-#include <asm/ioctls.h>
-struct winsize {
-        unsigned short ws_row;
-        unsigned short ws_col;
-        unsigned short ws_xpixel;
-        unsigned short ws_ypixel;
-};
-#define NCC 8
-struct termio {
-        unsigned short c_iflag;         /* input mode flags */
-        unsigned short c_oflag;         /* output mode flags */
-        unsigned short c_cflag;         /* control mode flags */
-        unsigned short c_lflag;         /* local mode flags */
-        unsigned char c_line;           /* line discipline */
-        unsigned char c_cc[NCC];        /* control characters */
-};
-#ifdef __KERNEL__
 /*      intr=^C         quit=^|         erase=del       kill=^U
        eof=^D          vtime=\0        vmin=\1         sxtc=\0
        start=^Q        stop=^S         susp=^Z         eol=\0
@@ -29,27 +10,6 @@ struct termio {
        eol2=\0
 */
 #define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
-#endif
-/* modem lines */
-#define TIOCM_LE        0x001
-#define TIOCM_DTR       0x002
-#define TIOCM_RTS       0x004
-#define TIOCM_ST        0x008
-#define TIOCM_SR        0x010
-#define TIOCM_CTS       0x020
-#define TIOCM_CAR       0x040
-#define TIOCM_RNG       0x080
-#define TIOCM_DSR       0x100
-#define TIOCM_CD        TIOCM_CAR
-#define TIOCM_RI        TIOCM_RNG
-#define TIOCM_OUT1      0x2000
-#define TIOCM_OUT2      0x4000
-#define TIOCM_LOOP      0x8000
-/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
-#ifdef __KERNEL__
 /*
 * Translate a "termio" structure into a "termios". Ugh.
@@ -87,6 +47,4 @@ struct termio {
 #define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
 #define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
-#endif  /* __KERNEL__ */
 #endif /* _M68K_TERMIOS_H */
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index c702ad716791..5fc7f7bec1c8 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -1,361 +1,10 @@
 #ifndef _ASM_M68K_UNISTD_H_
 #define _ASM_M68K_UNISTD_H_
-/*
+#include <uapi/asm/unistd.h>
- * This file contains the system call numbers.
- */
-#define __NR_restart_syscall      0
-#define __NR_exit                 1
-#define __NR_fork                 2
-#define __NR_read                 3
-#define __NR_write                4
-#define __NR_open                 5
-#define __NR_close                6
-#define __NR_waitpid              7
-#define __NR_creat                8
-#define __NR_link                 9
-#define __NR_unlink              10
-#define __NR_execve              11
-#define __NR_chdir               12
-#define __NR_time                13
-#define __NR_mknod               14
-#define __NR_chmod               15
-#define __NR_chown               16
-/*#define __NR_break             17*/
-#define __NR_oldstat             18
-#define __NR_lseek               19
-#define __NR_getpid              20
-#define __NR_mount               21
-#define __NR_umount              22
-#define __NR_setuid              23
-#define __NR_getuid              24
-#define __NR_stime               25
-#define __NR_ptrace              26
-#define __NR_alarm               27
-#define __NR_oldfstat            28
-#define __NR_pause               29
-#define __NR_utime               30
-/*#define __NR_stty              31*/
-/*#define __NR_gtty              32*/
-#define __NR_access              33
-#define __NR_nice                34
-/*#define __NR_ftime             35*/
-#define __NR_sync                36
-#define __NR_kill                37
-#define __NR_rename              38
-#define __NR_mkdir               39
-#define __NR_rmdir               40
-#define __NR_dup                 41
-#define __NR_pipe                42
-#define __NR_times               43
-/*#define __NR_prof              44*/
-#define __NR_brk                 45
-#define __NR_setgid              46
-#define __NR_getgid              47
-#define __NR_signal              48
-#define __NR_geteuid             49
-#define __NR_getegid             50
-#define __NR_acct                51
-#define __NR_umount2             52
-/*#define __NR_lock              53*/
-#define __NR_ioctl               54
-#define __NR_fcntl               55
-/*#define __NR_mpx               56*/
-#define __NR_setpgid             57
-/*#define __NR_ulimit            58*/
-/*#define __NR_oldolduname       59*/
-#define __NR_umask               60
-#define __NR_chroot              61
-#define __NR_ustat               62
-#define __NR_dup2                63
-#define __NR_getppid             64
-#define __NR_getpgrp             65
-#define __NR_setsid              66
-#define __NR_sigaction           67
-#define __NR_sgetmask            68
-#define __NR_ssetmask            69
-#define __NR_setreuid            70
-#define __NR_setregid            71
-#define __NR_sigsuspend          72
-#define __NR_sigpending          73
-#define __NR_sethostname         74
-#define __NR_setrlimit           75
-#define __NR_getrlimit           76
-#define __NR_getrusage           77
-#define __NR_gettimeofday        78
-#define __NR_settimeofday        79
-#define __NR_getgroups           80
-#define __NR_setgroups           81
-#define __NR_select              82
-#define __NR_symlink             83
-#define __NR_oldlstat            84
-#define __NR_readlink            85
-#define __NR_uselib              86
-#define __NR_swapon              87
-#define __NR_reboot              88
-#define __NR_readdir             89
-#define __NR_mmap                90
-#define __NR_munmap              91
-#define __NR_truncate            92
-#define __NR_ftruncate           93
-#define __NR_fchmod              94
-#define __NR_fchown              95
-#define __NR_getpriority         96
-#define __NR_setpriority         97
-/*#define __NR_profil            98*/
-#define __NR_statfs              99
-#define __NR_fstatfs            100
-/*#define __NR_ioperm           101*/
-#define __NR_socketcall         102
-#define __NR_syslog             103
-#define __NR_setitimer          104
-#define __NR_getitimer          105
-#define __NR_stat               106
-#define __NR_lstat              107
-#define __NR_fstat              108
-/*#define __NR_olduname         109*/
-/*#define __NR_iopl             110*/ /* not supported */
-#define __NR_vhangup            111
-/*#define __NR_idle             112*/ /* Obsolete */
-/*#define __NR_vm86             113*/ /* not supported */
-#define __NR_wait4              114
-#define __NR_swapoff            115
-#define __NR_sysinfo            116
-#define __NR_ipc                117
-#define __NR_fsync              118
-#define __NR_sigreturn          119
-#define __NR_clone              120
-#define __NR_setdomainname      121
-#define __NR_uname              122
-#define __NR_cacheflush         123
-#define __NR_adjtimex           124
-#define __NR_mprotect           125
-#define __NR_sigprocmask        126
-#define __NR_create_module      127
-#define __NR_init_module        128
-#define __NR_delete_module      129
-#define __NR_get_kernel_syms    130
-#define __NR_quotactl           131
-#define __NR_getpgid            132
-#define __NR_fchdir             133
-#define __NR_bdflush            134
-#define __NR_sysfs              135
-#define __NR_personality        136
-/*#define __NR_afs_syscall      137*/ /* Syscall for Andrew File System */
-#define __NR_setfsuid           138
-#define __NR_setfsgid           139
-#define __NR__llseek            140
-#define __NR_getdents           141
-#define __NR__newselect         142
-#define __NR_flock              143
-#define __NR_msync              144
-#define __NR_readv              145
-#define __NR_writev             146
-#define __NR_getsid             147
-#define __NR_fdatasync          148
-#define __NR__sysctl            149
-#define __NR_mlock              150
-#define __NR_munlock            151
-#define __NR_mlockall           152
-#define __NR_munlockall         153
-#define __NR_sched_setparam             154
-#define __NR_sched_getparam             155
-#define __NR_sched_setscheduler         156
-#define __NR_sched_getscheduler         157
-#define __NR_sched_yield                158
-#define __NR_sched_get_priority_max     159
-#define __NR_sched_get_priority_min     160
-#define __NR_sched_rr_get_interval      161
-#define __NR_nanosleep          162
-#define __NR_mremap             163
-#define __NR_setresuid          164
-#define __NR_getresuid          165
-#define __NR_getpagesize        166
-#define __NR_query_module       167
-#define __NR_poll               168
-#define __NR_nfsservctl         169
-#define __NR_setresgid          170
-#define __NR_getresgid          171
-#define __NR_prctl              172
-#define __NR_rt_sigreturn       173
-#define __NR_rt_sigaction       174
-#define __NR_rt_sigprocmask     175
-#define __NR_rt_sigpending      176
-#define __NR_rt_sigtimedwait    177
-#define __NR_rt_sigqueueinfo    178
-#define __NR_rt_sigsuspend      179
-#define __NR_pread64            180
-#define __NR_pwrite64           181
-#define __NR_lchown             182
-#define __NR_getcwd             183
-#define __NR_capget             184
-#define __NR_capset             185
-#define __NR_sigaltstack        186
-#define __NR_sendfile           187
-#define __NR_getpmsg            188     /* some people actually want streams */
-#define __NR_putpmsg            189     /* some people actually want streams */
-#define __NR_vfork              190
-#define __NR_ugetrlimit         191
-#define __NR_mmap2              192
-#define __NR_truncate64         193
-#define __NR_ftruncate64        194
-#define __NR_stat64             195
-#define __NR_lstat64            196
-#define __NR_fstat64            197
-#define __NR_chown32            198
-#define __NR_getuid32           199
-#define __NR_getgid32           200
-#define __NR_geteuid32          201
-#define __NR_getegid32          202
-#define __NR_setreuid32         203
-#define __NR_setregid32         204
-#define __NR_getgroups32        205
-#define __NR_setgroups32        206
-#define __NR_fchown32           207
-#define __NR_setresuid32        208
-#define __NR_getresuid32        209
-#define __NR_setresgid32        210
-#define __NR_getresgid32        211
-#define __NR_lchown32           212
-#define __NR_setuid32           213
-#define __NR_setgid32           214
-#define __NR_setfsuid32         215
-#define __NR_setfsgid32         216
-#define __NR_pivot_root         217
-/* 218*/
-/* 219*/
-#define __NR_getdents64         220
-#define __NR_gettid             221
-#define __NR_tkill              222
-#define __NR_setxattr           223
-#define __NR_lsetxattr          224
-#define __NR_fsetxattr          225
-#define __NR_getxattr           226
-#define __NR_lgetxattr          227
-#define __NR_fgetxattr          228
-#define __NR_listxattr          229
-#define __NR_llistxattr         230
-#define __NR_flistxattr         231
-#define __NR_removexattr        232
-#define __NR_lremovexattr       233
-#define __NR_fremovexattr       234
-#define __NR_futex              235
-#define __NR_sendfile64         236
-#define __NR_mincore            237
-#define __NR_madvise            238
-#define __NR_fcntl64            239
-#define __NR_readahead          240
-#define __NR_io_setup           241
-#define __NR_io_destroy         242
-#define __NR_io_getevents       243
-#define __NR_io_submit          244
-#define __NR_io_cancel          245
-#define __NR_fadvise64          246
-#define __NR_exit_group         247
-#define __NR_lookup_dcookie     248
-#define __NR_epoll_create       249
-#define __NR_epoll_ctl          250
-#define __NR_epoll_wait         251
-#define __NR_remap_file_pages   252
-#define __NR_set_tid_address    253
-#define __NR_timer_create       254
-#define __NR_timer_settime      255
-#define __NR_timer_gettime      256
-#define __NR_timer_getoverrun   257
-#define __NR_timer_delete       258
-#define __NR_clock_settime      259
-#define __NR_clock_gettime      260
-#define __NR_clock_getres       261
-#define __NR_clock_nanosleep    262
-#define __NR_statfs64           263
-#define __NR_fstatfs64          264
-#define __NR_tgkill             265
-#define __NR_utimes             266
-#define __NR_fadvise64_64       267
-#define __NR_mbind              268
-#define __NR_get_mempolicy      269
-#define __NR_set_mempolicy      270
-#define __NR_mq_open            271
-#define __NR_mq_unlink          272
-#define __NR_mq_timedsend       273
-#define __NR_mq_timedreceive    274
-#define __NR_mq_notify          275
-#define __NR_mq_getsetattr      276
-#define __NR_waitid             277
-/*#define __NR_vserver          278*/
-#define __NR_add_key            279
-#define __NR_request_key        280
-#define __NR_keyctl             281
-#define __NR_ioprio_set         282
-#define __NR_ioprio_get         283
-#define __NR_inotify_init       284
-#define __NR_inotify_add_watch  285
-#define __NR_inotify_rm_watch   286
-#define __NR_migrate_pages      287
-#define __NR_openat             288
-#define __NR_mkdirat            289
-#define __NR_mknodat            290
-#define __NR_fchownat           291
-#define __NR_futimesat          292
-#define __NR_fstatat64          293
-#define __NR_unlinkat           294
-#define __NR_renameat           295
-#define __NR_linkat             296
-#define __NR_symlinkat          297
-#define __NR_readlinkat         298
-#define __NR_fchmodat           299
-#define __NR_faccessat          300
-#define __NR_pselect6           301
-#define __NR_ppoll              302
-#define __NR_unshare            303
-#define __NR_set_robust_list    304
-#define __NR_get_robust_list    305
-#define __NR_splice             306
-#define __NR_sync_file_range    307
-#define __NR_tee                308
-#define __NR_vmsplice           309
-#define __NR_move_pages         310
-#define __NR_sched_setaffinity  311
-#define __NR_sched_getaffinity  312
-#define __NR_kexec_load         313
-#define __NR_getcpu             314
-#define __NR_epoll_pwait        315
-#define __NR_utimensat          316
-#define __NR_signalfd           317
-#define __NR_timerfd_create     318
-#define __NR_eventfd            319
-#define __NR_fallocate          320
-#define __NR_timerfd_settime    321
-#define __NR_timerfd_gettime    322
-#define __NR_signalfd4          323
-#define __NR_eventfd2           324
-#define __NR_epoll_create1      325
-#define __NR_dup3               326
-#define __NR_pipe2              327
-#define __NR_inotify_init1      328
-#define __NR_preadv             329
-#define __NR_pwritev            330
-#define __NR_rt_tgsigqueueinfo  331
-#define __NR_perf_event_open    332
-#define __NR_get_thread_area    333
-#define __NR_set_thread_area    334
-#define __NR_atomic_cmpxchg_32  335
-#define __NR_atomic_barrier     336
-#define __NR_fanotify_init      337
-#define __NR_fanotify_mark      338
-#define __NR_prlimit64          339
-#define __NR_name_to_handle_at  340
-#define __NR_open_by_handle_at  341
-#define __NR_clock_adjtime      342
-#define __NR_syncfs             343
-#define __NR_setns              344
-#define __NR_process_vm_readv   345
-#define __NR_process_vm_writev  346
-#ifdef __KERNEL__
-#define NR_syscalls             347
+#define NR_syscalls             348
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
@@ -393,5 +42,4 @@
 */
 #define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-#endif /* __KERNEL__ */
 #endif /* _ASM_M68K_UNISTD_H_ */
diff --git a/arch/m68k/include/uapi/asm/Kbuild b/arch/m68k/include/uapi/asm/Kbuild
index baebb3da1d44..972bce120e1e 100644
--- a/arch/m68k/include/uapi/asm/Kbuild
+++ b/arch/m68k/include/uapi/asm/Kbuild
@@ -1,3 +1,26 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
+header-y += a.out.h
+header-y += auxvec.h
+header-y += byteorder.h
+header-y += cachectl.h
+header-y += fcntl.h
+header-y += ioctls.h
+header-y += msgbuf.h
+header-y += param.h
+header-y += poll.h
+header-y += posix_types.h
+header-y += ptrace.h
+header-y += sembuf.h
+header-y += setup.h
+header-y += shmbuf.h
+header-y += sigcontext.h
+header-y += signal.h
+header-y += socket.h
+header-y += sockios.h
+header-y += stat.h
+header-y += swab.h
+header-y += termbits.h
+header-y += termios.h
+header-y += unistd.h
diff --git a/arch/m68k/include/asm/a.out.h b/arch/m68k/include/uapi/asm/a.out.h
index 3885fe43432a..3885fe43432a 100644
--- a/arch/m68k/include/asm/a.out.h
+++ b/arch/m68k/include/uapi/asm/a.out.h
diff --git a/arch/m68k/include/asm/auxvec.h b/arch/m68k/include/uapi/asm/auxvec.h
index 844d6d52204b..844d6d52204b 100644
--- a/arch/m68k/include/asm/auxvec.h
+++ b/arch/m68k/include/uapi/asm/auxvec.h
diff --git a/arch/m68k/include/asm/byteorder.h b/arch/m68k/include/uapi/asm/byteorder.h
index 31b260a88803..31b260a88803 100644
--- a/arch/m68k/include/asm/byteorder.h
+++ b/arch/m68k/include/uapi/asm/byteorder.h
diff --git a/arch/m68k/include/asm/cachectl.h b/arch/m68k/include/uapi/asm/cachectl.h
index 525978e959e3..525978e959e3 100644
--- a/arch/m68k/include/asm/cachectl.h
+++ b/arch/m68k/include/uapi/asm/cachectl.h
diff --git a/arch/m68k/include/asm/fcntl.h b/arch/m68k/include/uapi/asm/fcntl.h
index 1c369b20dc45..1c369b20dc45 100644
--- a/arch/m68k/include/asm/fcntl.h
+++ b/arch/m68k/include/uapi/asm/fcntl.h
diff --git a/arch/m68k/include/asm/ioctls.h b/arch/m68k/include/uapi/asm/ioctls.h
index 1332bb4ca5b0..1332bb4ca5b0 100644
--- a/arch/m68k/include/asm/ioctls.h
+++ b/arch/m68k/include/uapi/asm/ioctls.h
diff --git a/arch/m68k/include/asm/msgbuf.h b/arch/m68k/include/uapi/asm/msgbuf.h
index 243cb798de8f..243cb798de8f 100644
--- a/arch/m68k/include/asm/msgbuf.h
+++ b/arch/m68k/include/uapi/asm/msgbuf.h
diff --git a/arch/m68k/include/asm/param.h b/arch/m68k/include/uapi/asm/param.h
index 36265ccf5c7b..36265ccf5c7b 100644
--- a/arch/m68k/include/asm/param.h
+++ b/arch/m68k/include/uapi/asm/param.h
diff --git a/arch/m68k/include/asm/poll.h b/arch/m68k/include/uapi/asm/poll.h
index f080fcdb61bf..f080fcdb61bf 100644
--- a/arch/m68k/include/asm/poll.h
+++ b/arch/m68k/include/uapi/asm/poll.h
diff --git a/arch/m68k/include/asm/posix_types.h b/arch/m68k/include/uapi/asm/posix_types.h
index cf4dbf70fdc7..cf4dbf70fdc7 100644
--- a/arch/m68k/include/asm/posix_types.h
+++ b/arch/m68k/include/uapi/asm/posix_types.h
diff --git a/arch/m68k/include/uapi/asm/ptrace.h b/arch/m68k/include/uapi/asm/ptrace.h
new file mode 100644
index 000000000000..caf92fd34939
--- /dev/null
+++ b/arch/m68k/include/uapi/asm/ptrace.h
@@ -0,0 +1,79 @@
+#ifndef _UAPI_M68K_PTRACE_H
+#define _UAPI_M68K_PTRACE_H
+#define PT_D1      0
+#define PT_D2      1
+#define PT_D3      2
+#define PT_D4      3
+#define PT_D5      4
+#define PT_D6      5
+#define PT_D7      6
+#define PT_A0      7
+#define PT_A1      8
+#define PT_A2      9
+#define PT_A3      10
+#define PT_A4      11
+#define PT_A5      12
+#define PT_A6      13
+#define PT_D0      14
+#define PT_USP     15
+#define PT_ORIG_D0 16
+#define PT_SR      17
+#define PT_PC      18
+#ifndef __ASSEMBLY__
+/* this struct defines the way the registers are stored on the
+   stack during a system call. */
+struct pt_regs {
+  long     d1;
+  long     d2;
+  long     d3;
+  long     d4;
+  long     d5;
+  long     a0;
+  long     a1;
+  long     a2;
+  long     d0;
+  long     orig_d0;
+  long     stkadj;
+#ifdef CONFIG_COLDFIRE
+  unsigned format :  4; /* frame format specifier */
+  unsigned vector : 12; /* vector offset */
+  unsigned short sr;
+  unsigned long  pc;
+#else
+  unsigned short sr;
+  unsigned long  pc;
+  unsigned format :  4; /* frame format specifier */
+  unsigned vector : 12; /* vector offset */
+#endif
+};
+/*
+ * This is the extended stack used by signal handlers and the context
+ * switcher: it's pushed after the normal "struct pt_regs".
+ */
+struct switch_stack {
+        unsigned long  d6;
+        unsigned long  d7;
+        unsigned long  a3;
+        unsigned long  a4;
+        unsigned long  a5;
+        unsigned long  a6;
+        unsigned long  retpc;
+};
+/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
+#define PTRACE_GETREGS            12
+#define PTRACE_SETREGS            13
+#define PTRACE_GETFPREGS          14
+#define PTRACE_SETFPREGS          15
+#define PTRACE_GET_THREAD_AREA    25
+#define PTRACE_SINGLEBLOCK      33      /* resume execution until next branch */
+#endif /* __ASSEMBLY__ */
+#endif /* _UAPI_M68K_PTRACE_H */
diff --git a/arch/m68k/include/asm/sembuf.h b/arch/m68k/include/uapi/asm/sembuf.h
index 2308052a8c24..2308052a8c24 100644
--- a/arch/m68k/include/asm/sembuf.h
+++ b/arch/m68k/include/uapi/asm/sembuf.h
diff --git a/arch/m68k/include/uapi/asm/setup.h b/arch/m68k/include/uapi/asm/setup.h
new file mode 100644
index 000000000000..85579bff455c
--- /dev/null
+++ b/arch/m68k/include/uapi/asm/setup.h
@@ -0,0 +1,103 @@
+/*
+** asm/setup.h -- Definition of the Linux/m68k setup information
+**
+** Copyright 1992 by Greg Harp
+**
+** This file is subject to the terms and conditions of the GNU General Public
+** License.  See the file COPYING in the main directory of this archive
+** for more details.
+**
+** Created 09/29/92 by Greg Harp
+**
+** 5/2/94 Roman Hodek:
+**   Added bi_atari part of the machine dependent union bi_un; for now it
+**   contains just a model field to distinguish between TT and Falcon.
+** 26/7/96 Roman Zippel:
+**   Renamed to setup.h; added some useful macros to allow gcc some
+**   optimizations if possible.
+** 5/10/96 Geert Uytterhoeven:
+**   Redesign of the boot information structure; moved boot information
+**   structure to bootinfo.h
+*/
+#ifndef _UAPI_M68K_SETUP_H
+#define _UAPI_M68K_SETUP_H
+    /*
+     *  Linux/m68k Architectures
+     */
+#define MACH_AMIGA    1
+#define MACH_ATARI    2
+#define MACH_MAC      3
+#define MACH_APOLLO   4
+#define MACH_SUN3     5
+#define MACH_MVME147  6
+#define MACH_MVME16x  7
+#define MACH_BVME6000 8
+#define MACH_HP300    9
+#define MACH_Q40     10
+#define MACH_SUN3X   11
+#define MACH_M54XX   12
+#define COMMAND_LINE_SIZE 256
+    /*
+     *  CPU, FPU and MMU types
+     *
+     *  Note: we may rely on the following equalities:
+     *
+     *      CPU_68020 == MMU_68851
+     *      CPU_68030 == MMU_68030
+     *      CPU_68040 == FPU_68040 == MMU_68040
+     *      CPU_68060 == FPU_68060 == MMU_68060
+     */
+#define CPUB_68020     0
+#define CPUB_68030     1
+#define CPUB_68040     2
+#define CPUB_68060     3
+#define CPUB_COLDFIRE  4
+#define CPU_68020      (1<<CPUB_68020)
+#define CPU_68030      (1<<CPUB_68030)
+#define CPU_68040      (1<<CPUB_68040)
+#define CPU_68060      (1<<CPUB_68060)
+#define CPU_COLDFIRE   (1<<CPUB_COLDFIRE)
+#define FPUB_68881     0
+#define FPUB_68882     1
+#define FPUB_68040     2                       /* Internal FPU */
+#define FPUB_68060     3                       /* Internal FPU */
+#define FPUB_SUNFPA    4                       /* Sun-3 FPA */
+#define FPUB_COLDFIRE  5                       /* ColdFire FPU */
+#define FPU_68881      (1<<FPUB_68881)
+#define FPU_68882      (1<<FPUB_68882)
+#define FPU_68040      (1<<FPUB_68040)
+#define FPU_68060      (1<<FPUB_68060)
+#define FPU_SUNFPA     (1<<FPUB_SUNFPA)
+#define FPU_COLDFIRE   (1<<FPUB_COLDFIRE)
+#define MMUB_68851     0
+#define MMUB_68030     1                       /* Internal MMU */
+#define MMUB_68040     2                       /* Internal MMU */
+#define MMUB_68060     3                       /* Internal MMU */
+#define MMUB_APOLLO    4                       /* Custom Apollo */
+#define MMUB_SUN3      5                       /* Custom Sun-3 */
+#define MMUB_COLDFIRE  6                       /* Internal MMU */
+#define MMU_68851      (1<<MMUB_68851)
+#define MMU_68030      (1<<MMUB_68030)
+#define MMU_68040      (1<<MMUB_68040)
+#define MMU_68060      (1<<MMUB_68060)
+#define MMU_SUN3       (1<<MMUB_SUN3)
+#define MMU_APOLLO     (1<<MMUB_APOLLO)
+#define MMU_COLDFIRE   (1<<MMUB_COLDFIRE)
+#endif /* _UAPI_M68K_SETUP_H */
diff --git a/arch/m68k/include/asm/shmbuf.h b/arch/m68k/include/uapi/asm/shmbuf.h
index f8928d62f1b7..f8928d62f1b7 100644
--- a/arch/m68k/include/asm/shmbuf.h
+++ b/arch/m68k/include/uapi/asm/shmbuf.h
diff --git a/arch/m68k/include/asm/sigcontext.h b/arch/m68k/include/uapi/asm/sigcontext.h
index 523db2a51cf3..523db2a51cf3 100644
--- a/arch/m68k/include/asm/sigcontext.h
+++ b/arch/m68k/include/uapi/asm/sigcontext.h
diff --git a/arch/m68k/include/uapi/asm/signal.h b/arch/m68k/include/uapi/asm/signal.h
new file mode 100644
index 000000000000..2b450f311bd9
--- /dev/null
+++ b/arch/m68k/include/uapi/asm/signal.h
@@ -0,0 +1,118 @@
+#ifndef _UAPI_M68K_SIGNAL_H
+#define _UAPI_M68K_SIGNAL_H
+#include <linux/types.h>
+/* Avoid too many header ordering problems.  */
+struct siginfo;
+#ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers.  */
+#define NSIG            32
+typedef unsigned long sigset_t;
+#endif /* __KERNEL__ */
+#define SIGHUP           1
+#define SIGINT           2
+#define SIGQUIT          3
+#define SIGILL           4
+#define SIGTRAP          5
+#define SIGABRT          6
+#define SIGIOT           6
+#define SIGBUS           7
+#define SIGFPE           8
+#define SIGKILL          9
+#define SIGUSR1         10
+#define SIGSEGV         11
+#define SIGUSR2         12
+#define SIGPIPE         13
+#define SIGALRM         14
+#define SIGTERM         15
+#define SIGSTKFLT       16
+#define SIGCHLD         17
+#define SIGCONT         18
+#define SIGSTOP         19
+#define SIGTSTP         20
+#define SIGTTIN         21
+#define SIGTTOU         22
+#define SIGURG          23
+#define SIGXCPU         24
+#define SIGXFSZ         25
+#define SIGVTALRM       26
+#define SIGPROF         27
+#define SIGWINCH        28
+#define SIGIO           29
+#define SIGPOLL         SIGIO
+/*
+#define SIGLOST         29
+*/
+#define SIGPWR          30
+#define SIGSYS          31
+#define SIGUNUSED       31
+/* These should not be considered constants from userland.  */
+#define SIGRTMIN        32
+#define SIGRTMAX        _NSIG
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP    0x00000001
+#define SA_NOCLDWAIT    0x00000002
+#define SA_SIGINFO      0x00000004
+#define SA_ONSTACK      0x08000000
+#define SA_RESTART      0x10000000
+#define SA_NODEFER      0x40000000
+#define SA_RESETHAND    0x80000000
+#define SA_NOMASK       SA_NODEFER
+#define SA_ONESHOT      SA_RESETHAND
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK      1
+#define SS_DISABLE      2
+#define MINSIGSTKSZ     2048
+#define SIGSTKSZ        8192
+#include <asm-generic/signal-defs.h>
+#ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers.  */
+struct sigaction {
+        union {
+          __sighandler_t _sa_handler;
+          void (*_sa_sigaction)(int, struct siginfo *, void *);
+        } _u;
+        sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+};
+#define sa_handler      _u._sa_handler
+#define sa_sigaction    _u._sa_sigaction
+#endif /* __KERNEL__ */
+typedef struct sigaltstack {
+        void __user *ss_sp;
+        int ss_flags;
+        size_t ss_size;
+} stack_t;
+#endif /* _UAPI_M68K_SIGNAL_H */
diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/uapi/asm/socket.h
index d1be684edf97..d1be684edf97 100644
--- a/arch/m68k/include/asm/socket.h
+++ b/arch/m68k/include/uapi/asm/socket.h
diff --git a/arch/m68k/include/asm/sockios.h b/arch/m68k/include/uapi/asm/sockios.h
index c04a23943cb7..c04a23943cb7 100644
--- a/arch/m68k/include/asm/sockios.h
+++ b/arch/m68k/include/uapi/asm/sockios.h
diff --git a/arch/m68k/include/asm/stat.h b/arch/m68k/include/uapi/asm/stat.h
index dd38bc2e9f98..dd38bc2e9f98 100644
--- a/arch/m68k/include/asm/stat.h
+++ b/arch/m68k/include/uapi/asm/stat.h
diff --git a/arch/m68k/include/asm/swab.h b/arch/m68k/include/uapi/asm/swab.h
index b7b37a40defc..b7b37a40defc 100644
--- a/arch/m68k/include/asm/swab.h
+++ b/arch/m68k/include/uapi/asm/swab.h
diff --git a/arch/m68k/include/asm/termbits.h b/arch/m68k/include/uapi/asm/termbits.h
index aea1e37b765a..aea1e37b765a 100644
--- a/arch/m68k/include/asm/termbits.h
+++ b/arch/m68k/include/uapi/asm/termbits.h
diff --git a/arch/m68k/include/uapi/asm/termios.h b/arch/m68k/include/uapi/asm/termios.h
new file mode 100644
index 000000000000..ce2142c9ac1d
--- /dev/null
+++ b/arch/m68k/include/uapi/asm/termios.h
@@ -0,0 +1,44 @@
+#ifndef _UAPI_M68K_TERMIOS_H
+#define _UAPI_M68K_TERMIOS_H
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+struct winsize {
+        unsigned short ws_row;
+        unsigned short ws_col;
+        unsigned short ws_xpixel;
+        unsigned short ws_ypixel;
+};
+#define NCC 8
+struct termio {
+        unsigned short c_iflag;         /* input mode flags */
+        unsigned short c_oflag;         /* output mode flags */
+        unsigned short c_cflag;         /* control mode flags */
+        unsigned short c_lflag;         /* local mode flags */
+        unsigned char c_line;           /* line discipline */
+        unsigned char c_cc[NCC];        /* control characters */
+};
+/* modem lines */
+#define TIOCM_LE        0x001
+#define TIOCM_DTR       0x002
+#define TIOCM_RTS       0x004
+#define TIOCM_ST        0x008
+#define TIOCM_SR        0x010
+#define TIOCM_CTS       0x020
+#define TIOCM_CAR       0x040
+#define TIOCM_RNG       0x080
+#define TIOCM_DSR       0x100
+#define TIOCM_CD        TIOCM_CAR
+#define TIOCM_RI        TIOCM_RNG
+#define TIOCM_OUT1      0x2000
+#define TIOCM_OUT2      0x4000
+#define TIOCM_LOOP      0x8000
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+#endif /* _UAPI_M68K_TERMIOS_H */
diff --git a/arch/m68k/include/uapi/asm/unistd.h b/arch/m68k/include/uapi/asm/unistd.h
new file mode 100644
index 000000000000..b94bfbf90705
--- /dev/null
+++ b/arch/m68k/include/uapi/asm/unistd.h
@@ -0,0 +1,357 @@
+#ifndef _UAPI_ASM_M68K_UNISTD_H_
+#define _UAPI_ASM_M68K_UNISTD_H_
+/*
+ * This file contains the system call numbers.
+ */
+#define __NR_restart_syscall      0
+#define __NR_exit                 1
+#define __NR_fork                 2
+#define __NR_read                 3
+#define __NR_write                4
+#define __NR_open                 5
+#define __NR_close                6
+#define __NR_waitpid              7
+#define __NR_creat                8
+#define __NR_link                 9
+#define __NR_unlink              10
+#define __NR_execve              11
+#define __NR_chdir               12
+#define __NR_time                13
+#define __NR_mknod               14
+#define __NR_chmod               15
+#define __NR_chown               16
+/*#define __NR_break             17*/
+#define __NR_oldstat             18
+#define __NR_lseek               19
+#define __NR_getpid              20
+#define __NR_mount               21
+#define __NR_umount              22
+#define __NR_setuid              23
+#define __NR_getuid              24
+#define __NR_stime               25
+#define __NR_ptrace              26
+#define __NR_alarm               27
+#define __NR_oldfstat            28
+#define __NR_pause               29
+#define __NR_utime               30
+/*#define __NR_stty              31*/
+/*#define __NR_gtty              32*/
+#define __NR_access              33
+#define __NR_nice                34
+/*#define __NR_ftime             35*/
+#define __NR_sync                36
+#define __NR_kill                37
+#define __NR_rename              38
+#define __NR_mkdir               39
+#define __NR_rmdir               40
+#define __NR_dup                 41
+#define __NR_pipe                42
+#define __NR_times               43
+/*#define __NR_prof              44*/
+#define __NR_brk                 45
+#define __NR_setgid              46
+#define __NR_getgid              47
+#define __NR_signal              48
+#define __NR_geteuid             49
+#define __NR_getegid             50
+#define __NR_acct                51
+#define __NR_umount2             52
+/*#define __NR_lock              53*/
+#define __NR_ioctl               54
+#define __NR_fcntl               55
+/*#define __NR_mpx               56*/
+#define __NR_setpgid             57
+/*#define __NR_ulimit            58*/
+/*#define __NR_oldolduname       59*/
+#define __NR_umask               60
+#define __NR_chroot              61
+#define __NR_ustat               62
+#define __NR_dup2                63
+#define __NR_getppid             64
+#define __NR_getpgrp             65
+#define __NR_setsid              66
+#define __NR_sigaction           67
+#define __NR_sgetmask            68
+#define __NR_ssetmask            69
+#define __NR_setreuid            70
+#define __NR_setregid            71
+#define __NR_sigsuspend          72
+#define __NR_sigpending          73
+#define __NR_sethostname         74
+#define __NR_setrlimit           75
+#define __NR_getrlimit           76
+#define __NR_getrusage           77
+#define __NR_gettimeofday        78
+#define __NR_settimeofday        79
+#define __NR_getgroups           80
+#define __NR_setgroups           81
+#define __NR_select              82
+#define __NR_symlink             83
+#define __NR_oldlstat            84
+#define __NR_readlink            85
+#define __NR_uselib              86
+#define __NR_swapon              87
+#define __NR_reboot              88
+#define __NR_readdir             89
+#define __NR_mmap                90
+#define __NR_munmap              91
+#define __NR_truncate            92
+#define __NR_ftruncate           93
+#define __NR_fchmod              94
+#define __NR_fchown              95
+#define __NR_getpriority         96
+#define __NR_setpriority         97
+/*#define __NR_profil            98*/
+#define __NR_statfs              99
+#define __NR_fstatfs            100
+/*#define __NR_ioperm           101*/
+#define __NR_socketcall         102
+#define __NR_syslog             103
+#define __NR_setitimer          104
+#define __NR_getitimer          105
+#define __NR_stat               106
+#define __NR_lstat              107
+#define __NR_fstat              108
+/*#define __NR_olduname         109*/
+/*#define __NR_iopl             110*/ /* not supported */
+#define __NR_vhangup            111
+/*#define __NR_idle             112*/ /* Obsolete */
+/*#define __NR_vm86             113*/ /* not supported */
+#define __NR_wait4              114
+#define __NR_swapoff            115
+#define __NR_sysinfo            116
+#define __NR_ipc                117
+#define __NR_fsync              118
+#define __NR_sigreturn          119
+#define __NR_clone              120
+#define __NR_setdomainname      121
+#define __NR_uname              122
+#define __NR_cacheflush         123
+#define __NR_adjtimex           124
+#define __NR_mprotect           125
+#define __NR_sigprocmask        126
+#define __NR_create_module      127
+#define __NR_init_module        128
+#define __NR_delete_module      129
+#define __NR_get_kernel_syms    130
+#define __NR_quotactl           131
+#define __NR_getpgid            132
+#define __NR_fchdir             133
+#define __NR_bdflush            134
+#define __NR_sysfs              135
+#define __NR_personality        136
+/*#define __NR_afs_syscall      137*/ /* Syscall for Andrew File System */
+#define __NR_setfsuid           138
+#define __NR_setfsgid           139
+#define __NR__llseek            140
+#define __NR_getdents           141
+#define __NR__newselect         142
+#define __NR_flock              143
+#define __NR_msync              144
+#define __NR_readv              145
+#define __NR_writev             146
+#define __NR_getsid             147
+#define __NR_fdatasync          148
+#define __NR__sysctl            149
+#define __NR_mlock              150
+#define __NR_munlock            151
+#define __NR_mlockall           152
+#define __NR_munlockall         153
+#define __NR_sched_setparam             154
+#define __NR_sched_getparam             155
+#define __NR_sched_setscheduler         156
+#define __NR_sched_getscheduler         157
+#define __NR_sched_yield                158
+#define __NR_sched_get_priority_max     159
+#define __NR_sched_get_priority_min     160
+#define __NR_sched_rr_get_interval      161
+#define __NR_nanosleep          162
+#define __NR_mremap             163
+#define __NR_setresuid          164
+#define __NR_getresuid          165
+#define __NR_getpagesize        166
+#define __NR_query_module       167
+#define __NR_poll               168
+#define __NR_nfsservctl         169
+#define __NR_setresgid          170
+#define __NR_getresgid          171
+#define __NR_prctl              172
+#define __NR_rt_sigreturn       173
+#define __NR_rt_sigaction       174
+#define __NR_rt_sigprocmask     175
+#define __NR_rt_sigpending      176
+#define __NR_rt_sigtimedwait    177
+#define __NR_rt_sigqueueinfo    178
+#define __NR_rt_sigsuspend      179
+#define __NR_pread64            180
+#define __NR_pwrite64           181
+#define __NR_lchown             182
+#define __NR_getcwd             183
+#define __NR_capget             184
+#define __NR_capset             185
+#define __NR_sigaltstack        186
+#define __NR_sendfile           187
+#define __NR_getpmsg            188     /* some people actually want streams */
+#define __NR_putpmsg            189     /* some people actually want streams */
+#define __NR_vfork              190
+#define __NR_ugetrlimit         191
+#define __NR_mmap2              192
+#define __NR_truncate64         193
+#define __NR_ftruncate64        194
+#define __NR_stat64             195
+#define __NR_lstat64            196
+#define __NR_fstat64            197
+#define __NR_chown32            198
+#define __NR_getuid32           199
+#define __NR_getgid32           200
+#define __NR_geteuid32          201
+#define __NR_getegid32          202
+#define __NR_setreuid32         203
+#define __NR_setregid32         204
+#define __NR_getgroups32        205
+#define __NR_setgroups32        206
+#define __NR_fchown32           207
+#define __NR_setresuid32        208
+#define __NR_getresuid32        209
+#define __NR_setresgid32        210
+#define __NR_getresgid32        211
+#define __NR_lchown32           212
+#define __NR_setuid32           213
+#define __NR_setgid32           214
+#define __NR_setfsuid32         215
+#define __NR_setfsgid32         216
+#define __NR_pivot_root         217
+/* 218*/
+/* 219*/
+#define __NR_getdents64         220
+#define __NR_gettid             221
+#define __NR_tkill              222
+#define __NR_setxattr           223
+#define __NR_lsetxattr          224
+#define __NR_fsetxattr          225
+#define __NR_getxattr           226
+#define __NR_lgetxattr          227
+#define __NR_fgetxattr          228
+#define __NR_listxattr          229
+#define __NR_llistxattr         230
+#define __NR_flistxattr         231
+#define __NR_removexattr        232
+#define __NR_lremovexattr       233
+#define __NR_fremovexattr       234
+#define __NR_futex              235
+#define __NR_sendfile64         236
+#define __NR_mincore            237
+#define __NR_madvise            238
+#define __NR_fcntl64            239
+#define __NR_readahead          240
+#define __NR_io_setup           241
+#define __NR_io_destroy         242
+#define __NR_io_getevents       243
+#define __NR_io_submit          244
+#define __NR_io_cancel          245
+#define __NR_fadvise64          246
+#define __NR_exit_group         247
+#define __NR_lookup_dcookie     248
+#define __NR_epoll_create       249
+#define __NR_epoll_ctl          250
+#define __NR_epoll_wait         251
+#define __NR_remap_file_pages   252
+#define __NR_set_tid_address    253
+#define __NR_timer_create       254
+#define __NR_timer_settime      255
+#define __NR_timer_gettime      256
+#define __NR_timer_getoverrun   257
+#define __NR_timer_delete       258
+#define __NR_clock_settime      259
+#define __NR_clock_gettime      260
+#define __NR_clock_getres       261
+#define __NR_clock_nanosleep    262
+#define __NR_statfs64           263
+#define __NR_fstatfs64          264
+#define __NR_tgkill             265
+#define __NR_utimes             266
+#define __NR_fadvise64_64       267
+#define __NR_mbind              268
+#define __NR_get_mempolicy      269
+#define __NR_set_mempolicy      270
+#define __NR_mq_open            271
+#define __NR_mq_unlink          272
+#define __NR_mq_timedsend       273
+#define __NR_mq_timedreceive    274
+#define __NR_mq_notify          275
+#define __NR_mq_getsetattr      276
+#define __NR_waitid             277
+/*#define __NR_vserver          278*/
+#define __NR_add_key            279
+#define __NR_request_key        280
+#define __NR_keyctl             281
+#define __NR_ioprio_set         282
+#define __NR_ioprio_get         283
+#define __NR_inotify_init       284
+#define __NR_inotify_add_watch  285
+#define __NR_inotify_rm_watch   286
+#define __NR_migrate_pages      287
+#define __NR_openat             288
+#define __NR_mkdirat            289
+#define __NR_mknodat            290
+#define __NR_fchownat           291
+#define __NR_futimesat          292
+#define __NR_fstatat64          293
+#define __NR_unlinkat           294
+#define __NR_renameat           295
+#define __NR_linkat             296
+#define __NR_symlinkat          297
+#define __NR_readlinkat         298
+#define __NR_fchmodat           299
+#define __NR_faccessat          300
+#define __NR_pselect6           301
+#define __NR_ppoll              302
+#define __NR_unshare            303
+#define __NR_set_robust_list    304
+#define __NR_get_robust_list    305
+#define __NR_splice             306
+#define __NR_sync_file_range    307
+#define __NR_tee                308
+#define __NR_vmsplice           309
+#define __NR_move_pages         310
+#define __NR_sched_setaffinity  311
+#define __NR_sched_getaffinity  312
+#define __NR_kexec_load         313
+#define __NR_getcpu             314
+#define __NR_epoll_pwait        315
+#define __NR_utimensat          316
+#define __NR_signalfd           317
+#define __NR_timerfd_create     318
+#define __NR_eventfd            319
+#define __NR_fallocate          320
+#define __NR_timerfd_settime    321
+#define __NR_timerfd_gettime    322
+#define __NR_signalfd4          323
+#define __NR_eventfd2           324
+#define __NR_epoll_create1      325
+#define __NR_dup3               326
+#define __NR_pipe2              327
+#define __NR_inotify_init1      328
+#define __NR_preadv             329
+#define __NR_pwritev            330
+#define __NR_rt_tgsigqueueinfo  331
+#define __NR_perf_event_open    332
+#define __NR_get_thread_area    333
+#define __NR_set_thread_area    334
+#define __NR_atomic_cmpxchg_32  335
+#define __NR_atomic_barrier     336
+#define __NR_fanotify_init      337
+#define __NR_fanotify_mark      338
+#define __NR_prlimit64          339
+#define __NR_name_to_handle_at  340
+#define __NR_open_by_handle_at  341
+#define __NR_clock_adjtime      342
+#define __NR_syncfs             343
+#define __NR_setns              344
+#define __NR_process_vm_readv   345
+#define __NR_process_vm_writev  346
+#define __NR_kcmp               347
+#endif /* _UAPI_ASM_M68K_UNISTD_H_ */
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index ce827b376110..4fc2e29b771b 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -367,4 +367,5 @@ ENTRY(sys_call_table)
        .long sys_setns
        .long sys_process_vm_readv      /* 345 */
        .long sys_process_vm_writev
+        .long sys_kcmp
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 3f3d9ca7a5b6..5dba755a43e6 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -130,6 +130,7 @@ config S390
        select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
        select HAVE_UID16 if 32BIT
        select ARCH_WANT_IPC_PARSE_VERSION
+        select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT
        select GENERIC_SMP_IDLE_THREAD
        select GENERIC_TIME_VSYSCALL_OLD
        select GENERIC_CLOCKEVENTS
diff --git a/arch/s390/boot/compressed/vmlinux.lds.S b/arch/s390/boot/compressed/vmlinux.lds.S
index d80f79d8dd9c..8e1fb8239287 100644
--- a/arch/s390/boot/compressed/vmlinux.lds.S
+++ b/arch/s390/boot/compressed/vmlinux.lds.S
@@ -5,7 +5,7 @@ OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
 OUTPUT_ARCH(s390:64-bit)
 #else
 OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
-OUTPUT_ARCH(s390)
+OUTPUT_ARCH(s390:31-bit)
 #endif
 ENTRY(startup)
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
index 55bde6035216..ad2b924167d7 100644
--- a/arch/s390/include/asm/cio.h
+++ b/arch/s390/include/asm/cio.h
@@ -9,6 +9,8 @@
 #define LPM_ANYPATH 0xff
 #define __MAX_CSSID 0
+#define __MAX_SUBCHANNEL 65535
+#define __MAX_SSID 3
 #include <asm/scsw.h>
diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h
index 7941968e12b4..5f0173a31693 100644
--- a/arch/s390/include/asm/perf_event.h
+++ b/arch/s390/include/asm/perf_event.h
@@ -9,7 +9,7 @@
 #include <asm/cpu_mf.h>
 /* CPU-measurement counter facility */
-#define PERF_CPUM_CF_MAX_CTR            160
+#define PERF_CPUM_CF_MAX_CTR            256
 /* Per-CPU flags for PMU states */
 #define PMU_F_RESERVED                  0x1000
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index dd647c919a66..2d3b7cb26005 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -506,12 +506,15 @@ static inline int pud_bad(pud_t pud)
 static inline int pmd_present(pmd_t pmd)
 {
-        return (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN) != 0UL;
+        unsigned long mask = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO;
+        return (pmd_val(pmd) & mask) == _HPAGE_TYPE_NONE ||
+               !(pmd_val(pmd) & _SEGMENT_ENTRY_INV);
 }
 static inline int pmd_none(pmd_t pmd)
 {
-        return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) != 0UL;
+        return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) &&
+               !(pmd_val(pmd) & _SEGMENT_ENTRY_RO);
 }
 static inline int pmd_large(pmd_t pmd)
@@ -1223,6 +1226,11 @@ static inline void __pmd_idte(unsigned long address, pmd_t *pmdp)
 }
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#define SEGMENT_NONE    __pgprot(_HPAGE_TYPE_NONE)
+#define SEGMENT_RO      __pgprot(_HPAGE_TYPE_RO)
+#define SEGMENT_RW      __pgprot(_HPAGE_TYPE_RW)
 #define __HAVE_ARCH_PGTABLE_DEPOSIT
 extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pgtable_t pgtable);
@@ -1242,16 +1250,15 @@ static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 static inline unsigned long massage_pgprot_pmd(pgprot_t pgprot)
 {
-        unsigned long pgprot_pmd = 0;
+        /*
+         * pgprot is PAGE_NONE, PAGE_RO, or PAGE_RW (see __Pxxx / __Sxxx)
-        if (pgprot_val(pgprot) & _PAGE_INVALID) {
+         * Convert to segment table entry format.
-                if (pgprot_val(pgprot) & _PAGE_SWT)
+         */
-                        pgprot_pmd |= _HPAGE_TYPE_NONE;
+        if (pgprot_val(pgprot) == pgprot_val(PAGE_NONE))
-                pgprot_pmd |= _SEGMENT_ENTRY_INV;
+                return pgprot_val(SEGMENT_NONE);
-        }
+        if (pgprot_val(pgprot) == pgprot_val(PAGE_RO))
-        if (pgprot_val(pgprot) & _PAGE_RO)
+                return pgprot_val(SEGMENT_RO);
-                pgprot_pmd |= _SEGMENT_ENTRY_RO;
+        return pgprot_val(SEGMENT_RW);
-        return pgprot_pmd;
 }
 static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
@@ -1269,7 +1276,9 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd)
 static inline pmd_t pmd_mkwrite(pmd_t pmd)
 {
-        pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO;
+        /* Do not clobber _HPAGE_TYPE_NONE pages! */
+        if (!(pmd_val(pmd) & _SEGMENT_ENTRY_INV))
+                pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO;
        return pmd;
 }
diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild
index 59b67ed423b4..7bf68fff7c5d 100644
--- a/arch/s390/include/uapi/asm/Kbuild
+++ b/arch/s390/include/uapi/asm/Kbuild
@@ -1,8 +1,6 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
-generic-y += kvm_para.h
 header-y += auxvec.h
 header-y += bitsperlong.h
 header-y += byteorder.h
diff --git a/arch/s390/include/uapi/asm/chpid.h b/arch/s390/include/uapi/asm/chpid.h
index 581992dfae27..6b4fb29cc197 100644
--- a/arch/s390/include/uapi/asm/chpid.h
+++ b/arch/s390/include/uapi/asm/chpid.h
@@ -1,5 +1,5 @@
 /*
- *    Copyright IBM Corp. 2007
+ *    Copyright IBM Corp. 2007, 2012
 *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
 */
@@ -12,10 +12,10 @@
 #define __MAX_CHPID 255
 struct chp_id {
-        u8 reserved1;
+        __u8 reserved1;
-        u8 cssid;
+        __u8 cssid;
-        u8 reserved2;
+        __u8 reserved2;
-        u8 id;
+        __u8 id;
 } __attribute__((packed));
diff --git a/arch/s390/include/uapi/asm/kvm_para.h b/arch/s390/include/uapi/asm/kvm_para.h
new file mode 100644
index 000000000000..ff1f4e7b3015
--- /dev/null
+++ b/arch/s390/include/uapi/asm/kvm_para.h
@@ -0,0 +1,11 @@
+/*
+ * User API definitions for paravirtual devices on s390
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
+ */
diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c
index 8df8d8a19c98..64b24650e4f8 100644
--- a/arch/s390/kernel/cache.c
+++ b/arch/s390/kernel/cache.c
@@ -59,8 +59,8 @@ enum {
 enum {
        CACHE_TI_UNIFIED = 0,
-        CACHE_TI_INSTRUCTION = 0,
+        CACHE_TI_DATA = 0,
-        CACHE_TI_DATA,
+        CACHE_TI_INSTRUCTION,
 };
 struct cache_info {
@@ -121,7 +121,10 @@ static int __init cache_add(int level, int private, int type)
        cache = kzalloc(sizeof(*cache), GFP_KERNEL);
        if (!cache)
                return -ENOMEM;
-        ti = type == CACHE_TYPE_DATA ? CACHE_TI_DATA : CACHE_TI_UNIFIED;
+        if (type == CACHE_TYPE_INSTRUCTION)
+                ti = CACHE_TI_INSTRUCTION;
+        else
+                ti = CACHE_TI_UNIFIED;
        cache->size = ecag(EXTRACT_SIZE, level, ti);
        cache->line_size = ecag(EXTRACT_LINE_SIZE, level, ti);
        cache->associativity = ecag(EXTRACT_ASSOCIATIVITY, level, ti);
diff --git a/arch/s390/kernel/head_kdump.S b/arch/s390/kernel/head_kdump.S
index acaaaf4b7055..085a95eb315f 100644
--- a/arch/s390/kernel/head_kdump.S
+++ b/arch/s390/kernel/head_kdump.S
@@ -85,16 +85,10 @@
 .align 2
 startup_kdump_relocated:
        basr    %r13,0
-0:
+0:      lpswe   .Lrestart_psw-0b(%r13)          # Start new kernel...
-        mvc     0(8,%r0),.Lrestart_psw-0b(%r13) # Setup restart PSW
-        sam31                                   # Switch to 31 bit addr mode
-        sr      %r1,%r1                         # Erase register r1
-        sr      %r2,%r2                         # Erase register r2
-        sigp    %r1,%r2,SIGP_SET_ARCHITECTURE   # Switch to 31 bit arch mode
-        lpsw    0                               # Start new kernel...
 .align  8
 .Lrestart_psw:
-        .long   0x00080000,0x80000000 + startup
+        .quad   0x0000000080000000,0x0000000000000000 + startup
 #else
 .align 2
 .Lep_startup_kdump:
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 9871b1971ed7..c4e7269d4a09 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -94,7 +94,7 @@ static int get_counter_set(u64 event)
                set = CPUMF_CTR_SET_USER;
        else if (event < 128)
                set = CPUMF_CTR_SET_CRYPTO;
-        else if (event < 160)
+        else if (event < 256)
                set = CPUMF_CTR_SET_EXT;
        return set;
@@ -138,6 +138,10 @@ static int validate_ctr_version(const struct hw_perf_event *hwc)
        case CPUMF_CTR_SET_EXT:
                if (cpuhw->info.csvn < 1)
                        err = -EOPNOTSUPP;
+                if ((cpuhw->info.csvn == 1 && hwc->config > 159) ||
+                    (cpuhw->info.csvn == 2 && hwc->config > 175) ||
+                    (cpuhw->info.csvn  > 2 && hwc->config > 255))
+                        err = -EOPNOTSUPP;
                break;
        }
diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S
index bf053898630d..b6506ee32a36 100644
--- a/arch/s390/kernel/sclp.S
+++ b/arch/s390/kernel/sclp.S
@@ -44,6 +44,12 @@ _sclp_wait_int:
 #endif
        mvc     .LoldpswS1-.LbaseS1(16,%r13),0(%r8)
        mvc     0(16,%r8),0(%r9)
+#ifdef CONFIG_64BIT
+        epsw    %r6,%r7                         # set current addressing mode
+        nill    %r6,0x1                         # in new psw (31 or 64 bit mode)
+        nilh    %r7,0x8000
+        stm     %r6,%r7,0(%r8)
+#endif
        lhi     %r6,0x0200                      # cr mask for ext int (cr0.54)
        ltr     %r2,%r2
        jz      .LsetctS1
@@ -87,7 +93,7 @@ _sclp_wait_int:
        .long   0x00080000, 0x80000000+.LwaitS1 # PSW to handle ext int
 #ifdef CONFIG_64BIT
 .LextpswS1_64:
-        .quad   0x0000000180000000, .LwaitS1    # PSW to handle ext int, 64 bit
+        .quad   0, .LwaitS1                     # PSW to handle ext int, 64 bit
 #endif
 .LwaitpswS1:
        .long   0x010a0000, 0x00000000+.LloopS1 # PSW to wait for ext int
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index de8fa9bbd35e..79cb51adc741 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -8,7 +8,7 @@
 #ifndef CONFIG_64BIT
 OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
-OUTPUT_ARCH(s390)
+OUTPUT_ARCH(s390:31-bit)
 ENTRY(startup)
 jiffies = jiffies_64 + 4;
 #else
diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index 2d37bb861faf..9017a63dda3d 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -39,7 +39,7 @@ static __always_inline unsigned long follow_table(struct mm_struct *mm,
        pmd = pmd_offset(pud, addr);
        if (pmd_none(*pmd))
                return -0x10UL;
-        if (pmd_huge(*pmd)) {
+        if (pmd_large(*pmd)) {
                if (write && (pmd_val(*pmd) & _SEGMENT_ENTRY_RO))
                        return -0x04UL;
                return (pmd_val(*pmd) & HPAGE_MASK) + (addr & ~HPAGE_MASK);
diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index 60acb93a4680..8b8285310b5a 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -126,7 +126,7 @@ static inline int gup_pmd_range(pud_t *pudp, pud_t pud, unsigned long addr,
                 */
                if (pmd_none(pmd) || pmd_trans_splitting(pmd))
                        return 0;
-                if (unlikely(pmd_huge(pmd))) {
+                if (unlikely(pmd_large(pmd))) {
                        if (!gup_huge_pmd(pmdp, pmd, addr, next,
                                          write, pages, nr))
                                return 0;
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index b6b442b0d793..9f2edb5c5551 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -20,6 +20,7 @@ config SPARC
        select HAVE_ARCH_TRACEHOOK
        select SYSCTL_EXCEPTION_TRACE
        select ARCH_WANT_OPTIONAL_GPIOLIB
+        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
        select RTC_CLASS
        select RTC_DRV_M48T59
        select HAVE_IRQ_WORK
diff --git a/arch/sparc/crypto/Makefile b/arch/sparc/crypto/Makefile
index 6ae1ad5e502b..5d469d81761f 100644
--- a/arch/sparc/crypto/Makefile
+++ b/arch/sparc/crypto/Makefile
@@ -13,13 +13,13 @@ obj-$(CONFIG_CRYPTO_DES_SPARC64) += camellia-sparc64.o
 obj-$(CONFIG_CRYPTO_CRC32C_SPARC64) += crc32c-sparc64.o
-sha1-sparc64-y := sha1_asm.o sha1_glue.o crop_devid.o
+sha1-sparc64-y := sha1_asm.o sha1_glue.o
-sha256-sparc64-y := sha256_asm.o sha256_glue.o crop_devid.o
+sha256-sparc64-y := sha256_asm.o sha256_glue.o
-sha512-sparc64-y := sha512_asm.o sha512_glue.o crop_devid.o
+sha512-sparc64-y := sha512_asm.o sha512_glue.o
-md5-sparc64-y := md5_asm.o md5_glue.o crop_devid.o
+md5-sparc64-y := md5_asm.o md5_glue.o
-aes-sparc64-y := aes_asm.o aes_glue.o crop_devid.o
+aes-sparc64-y := aes_asm.o aes_glue.o
-des-sparc64-y := des_asm.o des_glue.o crop_devid.o
+des-sparc64-y := des_asm.o des_glue.o
-camellia-sparc64-y := camellia_asm.o camellia_glue.o crop_devid.o
+camellia-sparc64-y := camellia_asm.o camellia_glue.o
-crc32c-sparc64-y := crc32c_asm.o crc32c_glue.o crop_devid.o
+crc32c-sparc64-y := crc32c_asm.o crc32c_glue.o
diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c
index 8f1c9980f637..3965d1d36dfa 100644
--- a/arch/sparc/crypto/aes_glue.c
+++ b/arch/sparc/crypto/aes_glue.c
@@ -475,3 +475,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("AES Secure Hash Algorithm, sparc64 aes opcode accelerated");
 MODULE_ALIAS("aes");
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/camellia_glue.c b/arch/sparc/crypto/camellia_glue.c
index 42905c084299..62c89af3fd3f 100644
--- a/arch/sparc/crypto/camellia_glue.c
+++ b/arch/sparc/crypto/camellia_glue.c
@@ -320,3 +320,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Camellia Cipher Algorithm, sparc64 camellia opcode accelerated");
 MODULE_ALIAS("aes");
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/crc32c_glue.c b/arch/sparc/crypto/crc32c_glue.c
index 0bd89cea8d8e..5162fad912ce 100644
--- a/arch/sparc/crypto/crc32c_glue.c
+++ b/arch/sparc/crypto/crc32c_glue.c
@@ -177,3 +177,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("CRC32c (Castagnoli), sparc64 crc32c opcode accelerated");
 MODULE_ALIAS("crc32c");
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/des_glue.c b/arch/sparc/crypto/des_glue.c
index c4940c2d3073..41524cebcc49 100644
--- a/arch/sparc/crypto/des_glue.c
+++ b/arch/sparc/crypto/des_glue.c
@@ -527,3 +527,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms, sparc64 des opcode accelerated");
 MODULE_ALIAS("des");
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/md5_glue.c b/arch/sparc/crypto/md5_glue.c
index 603d723038ce..09a9ea1dfb69 100644
--- a/arch/sparc/crypto/md5_glue.c
+++ b/arch/sparc/crypto/md5_glue.c
@@ -186,3 +186,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("MD5 Secure Hash Algorithm, sparc64 md5 opcode accelerated");
 MODULE_ALIAS("md5");
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/sha1_glue.c b/arch/sparc/crypto/sha1_glue.c
index 2bbb20bee9f1..6cd5f29e1e0d 100644
--- a/arch/sparc/crypto/sha1_glue.c
+++ b/arch/sparc/crypto/sha1_glue.c
@@ -181,3 +181,5 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, sparc64 sha1 opcode accelerated");
 MODULE_ALIAS("sha1");
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/sha256_glue.c b/arch/sparc/crypto/sha256_glue.c
index 591e656bd891..04f555ab2680 100644
--- a/arch/sparc/crypto/sha256_glue.c
+++ b/arch/sparc/crypto/sha256_glue.c
@@ -239,3 +239,5 @@ MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm, sparc64 sha256 op
 MODULE_ALIAS("sha224");
 MODULE_ALIAS("sha256");
+#include "crop_devid.c"
diff --git a/arch/sparc/crypto/sha512_glue.c b/arch/sparc/crypto/sha512_glue.c
index 486f0a2b7001..f04d1994d19a 100644
--- a/arch/sparc/crypto/sha512_glue.c
+++ b/arch/sparc/crypto/sha512_glue.c
@@ -224,3 +224,5 @@ MODULE_DESCRIPTION("SHA-384 and SHA-512 Secure Hash Algorithm, sparc64 sha512 op
 MODULE_ALIAS("sha384");
 MODULE_ALIAS("sha512");
+#include "crop_devid.c"
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index ce35a1cf1a20..be56a244c9cf 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -1,7 +1,7 @@
 /* atomic.h: Thankfully the V9 is at least reasonable for this
 *           stuff.
 *
- * Copyright (C) 1996, 1997, 2000 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1996, 1997, 2000, 2012 David S. Miller (davem@redhat.com)
 */
 #ifndef __ARCH_SPARC64_ATOMIC__
@@ -106,6 +106,8 @@ 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);
 /* Atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()     barrier()
 #define smp_mb__after_atomic_dec()      barrier()
diff --git a/arch/sparc/include/asm/backoff.h b/arch/sparc/include/asm/backoff.h
index db3af0d30fb1..4e02086b839c 100644
--- a/arch/sparc/include/asm/backoff.h
+++ b/arch/sparc/include/asm/backoff.h
@@ -1,6 +1,46 @@
 #ifndef _SPARC64_BACKOFF_H
 #define _SPARC64_BACKOFF_H
+/* The macros in this file implement an exponential backoff facility
+ * for atomic operations.
+ *
+ * When multiple threads compete on an atomic operation, it is
+ * possible for one thread to be continually denied a successful
+ * completion of the compare-and-swap instruction.  Heavily
+ * threaded cpu implementations like Niagara can compound this
+ * problem even further.
+ *
+ * When an atomic operation fails and needs to be retried, we spin a
+ * certain number of times.  At each subsequent failure of the same
+ * operation we double the spin count, realizing an exponential
+ * backoff.
+ *
+ * When we spin, we try to use an operation that will cause the
+ * current cpu strand to block, and therefore make the core fully
+ * available to any other other runnable strands.  There are two
+ * options, based upon cpu capabilities.
+ *
+ * On all cpus prior to SPARC-T4 we do three dummy reads of the
+ * condition code register.  Each read blocks the strand for something
+ * between 40 and 50 cpu cycles.
+ *
+ * For SPARC-T4 and later we have a special "pause" instruction
+ * available.  This is implemented using writes to register %asr27.
+ * The cpu will block the number of cycles written into the register,
+ * unless a disrupting trap happens first.  SPARC-T4 specifically
+ * implements pause with a granularity of 8 cycles.  Each strand has
+ * an internal pause counter which decrements every 8 cycles.  So the
+ * chip shifts the %asr27 value down by 3 bits, and writes the result
+ * into the pause counter.  If a value smaller than 8 is written, the
+ * chip blocks for 1 cycle.
+ *
+ * To achieve the same amount of backoff as the three %ccr reads give
+ * on earlier chips, we shift the backoff value up by 7 bits.  (Three
+ * %ccr reads block for about 128 cycles, 1 << 7 == 128) We write the
+ * whole amount we want to block into the pause register, rather than
+ * loop writing 128 each time.
+ */
 #define BACKOFF_LIMIT   (4 * 1024)
 #ifdef CONFIG_SMP
@@ -11,16 +51,25 @@
 #define BACKOFF_LABEL(spin_label, continue_label) \
        spin_label
-#define BACKOFF_SPIN(reg, tmp, label)   \
+#define BACKOFF_SPIN(reg, tmp, label)           \
-        mov     reg, tmp; \
+        mov             reg, tmp;               \
-88:     brnz,pt tmp, 88b; \
+88:     rd              %ccr, %g0;              \
-         sub    tmp, 1, tmp; \
+        rd              %ccr, %g0;              \
-        set     BACKOFF_LIMIT, tmp; \
+        rd              %ccr, %g0;              \
-        cmp     reg, tmp; \
+        .section        .pause_3insn_patch,"ax";\
-        bg,pn   %xcc, label; \
+        .word           88b;                    \
-         nop; \
+        sllx            tmp, 7, tmp;            \
-        ba,pt   %xcc, label; \
+        wr              tmp, 0, %asr27;         \
-         sllx   reg, 1, reg;
+        clr             tmp;                    \
+        .previous;                              \
+        brnz,pt         tmp, 88b;               \
+         sub            tmp, 1, tmp;            \
+        set             BACKOFF_LIMIT, tmp;     \
+        cmp             reg, tmp;               \
+        bg,pn           %xcc, label;            \
+         nop;                                   \
+        ba,pt           %xcc, label;            \
+         sllx           reg, 1, reg;
 #else
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index cef99fbc0a21..830502fe62b4 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -232,9 +232,10 @@ static inline void __user *arch_compat_alloc_user_space(long len)
        struct pt_regs *regs = current_thread_info()->kregs;
        unsigned long usp = regs->u_regs[UREG_I6];
-        if (!(test_thread_flag(TIF_32BIT)))
+        if (test_thread_64bit_stack(usp))
                usp += STACK_BIAS;
-        else
+        if (test_thread_flag(TIF_32BIT))
                usp &= 0xffffffffUL;
        usp -= len;
diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h
index 4e5a483122a0..721e25f0e2ea 100644
--- a/arch/sparc/include/asm/processor_64.h
+++ b/arch/sparc/include/asm/processor_64.h
@@ -196,7 +196,22 @@ extern unsigned long get_wchan(struct task_struct *task);
 #define KSTK_EIP(tsk)  (task_pt_regs(tsk)->tpc)
 #define KSTK_ESP(tsk)  (task_pt_regs(tsk)->u_regs[UREG_FP])
-#define cpu_relax()     barrier()
+/* Please see the commentary in asm/backoff.h for a description of
+ * what these instructions are doing and how they have been choosen.
+ * To make a long story short, we are trying to yield the current cpu
+ * strand during busy loops.
+ */
+#define cpu_relax()     asm volatile("\n99:\n\t"                        \
+                                     "rd        %%ccr, %%g0\n\t"        \
+                                     "rd        %%ccr, %%g0\n\t"        \
+                                     "rd        %%ccr, %%g0\n\t"        \
+                                     ".section  .pause_3insn_patch,\"ax\"\n\t"\
+                                     ".word     99b\n\t"                \
+                                     "wr        %%g0, 128, %%asr27\n\t" \
+                                     "nop\n\t"                          \
+                                     "nop\n\t"                          \
+                                     ".previous"                        \
+                                     ::: "memory")
 /* Prefetch support.  This is tuned for UltraSPARC-III and later.
 * UltraSPARC-I will treat these as nops, and UltraSPARC-II has
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index c28765110706..f93003123bce 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -63,5 +63,10 @@ extern char *of_console_options;
 extern void irq_trans_init(struct device_node *dp);
 extern char *build_path_component(struct device_node *dp);
+/* SPARC has a local implementation */
+extern int of_address_to_resource(struct device_node *dev, int index,
+                                  struct resource *r);
+#define of_address_to_resource of_address_to_resource
 #endif /* __KERNEL__ */
 #endif /* _SPARC_PROM_H */
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 4e2276631081..a3fe4dcc0aa6 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -259,6 +259,11 @@ static inline bool test_and_clear_restore_sigmask(void)
 #define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+#define thread32_stack_is_64bit(__SP) (((__SP) & 0x1) != 0)
+#define test_thread_64bit_stack(__SP) \
+        ((test_thread_flag(TIF_32BIT) && !thread32_stack_is_64bit(__SP)) ? \
+         false : true)
 #endif  /* !__ASSEMBLY__ */
 #endif /* __KERNEL__ */
diff --git a/arch/sparc/include/asm/ttable.h b/arch/sparc/include/asm/ttable.h
index 48f2807d3265..71b5a67522ab 100644
--- a/arch/sparc/include/asm/ttable.h
+++ b/arch/sparc/include/asm/ttable.h
@@ -372,7 +372,9 @@ etrap_spill_fixup_64bit:				\
 /* Normal 32bit spill */
 #define SPILL_2_GENERIC(ASI)                            \
-        srl     %sp, 0, %sp;                            \
+        and     %sp, 1, %g3;                            \
+        brnz,pn %g3, (. - (128 + 4));                   \
+         srl    %sp, 0, %sp;                            \
        stwa    %l0, [%sp + %g0] ASI;                   \
        mov     0x04, %g3;                              \
        stwa    %l1, [%sp + %g3] ASI;                   \
@@ -398,14 +400,16 @@ etrap_spill_fixup_64bit:				\
        stwa    %i6, [%g1 + %g0] ASI;                   \
        stwa    %i7, [%g1 + %g3] ASI;                   \
        saved;                                          \
-        retry; nop; nop;                                \
+        retry;                                          \
        b,a,pt  %xcc, spill_fixup_dax;                  \
        b,a,pt  %xcc, spill_fixup_mna;                  \
        b,a,pt  %xcc, spill_fixup;
 #define SPILL_2_GENERIC_ETRAP           \
 etrap_user_spill_32bit:                 \
-        srl     %sp, 0, %sp;            \
+        and     %sp, 1, %g3;            \
+        brnz,pn %g3, etrap_user_spill_64bit;    \
+         srl    %sp, 0, %sp;            \
        stwa    %l0, [%sp + 0x00] %asi; \
        stwa    %l1, [%sp + 0x04] %asi; \
        stwa    %l2, [%sp + 0x08] %asi; \
@@ -427,7 +431,7 @@ etrap_user_spill_32bit:			\
        ba,pt   %xcc, etrap_save;       \
         wrpr   %g1, %cwp;              \
        nop; nop; nop; nop;             \
-        nop; nop; nop; nop;             \
+        nop; nop;                       \
        ba,a,pt %xcc, etrap_spill_fixup_32bit; \
        ba,a,pt %xcc, etrap_spill_fixup_32bit; \
        ba,a,pt %xcc, etrap_spill_fixup_32bit;
@@ -592,7 +596,9 @@ user_rtt_fill_64bit:					\
 /* Normal 32bit fill */
 #define FILL_2_GENERIC(ASI)                             \
-        srl     %sp, 0, %sp;                            \
+        and     %sp, 1, %g3;                            \
+        brnz,pn %g3, (. - (128 + 4));                   \
+         srl    %sp, 0, %sp;                            \
        lduwa   [%sp + %g0] ASI, %l0;                   \
        mov     0x04, %g2;                              \
        mov     0x08, %g3;                              \
@@ -616,14 +622,16 @@ user_rtt_fill_64bit:					\
        lduwa   [%g1 + %g3] ASI, %i6;                   \
        lduwa   [%g1 + %g5] ASI, %i7;                   \
        restored;                                       \
-        retry; nop; nop; nop; nop;                      \
+        retry; nop; nop;                                \
        b,a,pt  %xcc, fill_fixup_dax;                   \
        b,a,pt  %xcc, fill_fixup_mna;                   \
        b,a,pt  %xcc, fill_fixup;
 #define FILL_2_GENERIC_RTRAP                            \
 user_rtt_fill_32bit:                                    \
-        srl     %sp, 0, %sp;                            \
+        and     %sp, 1, %g3;                            \
+        brnz,pn %g3, user_rtt_fill_64bit;               \
+         srl    %sp, 0, %sp;                            \
        lduwa   [%sp + 0x00] %asi, %l0;                 \
        lduwa   [%sp + 0x04] %asi, %l1;                 \
        lduwa   [%sp + 0x08] %asi, %l2;                 \
@@ -643,7 +651,7 @@ user_rtt_fill_32bit:					\
        ba,pt   %xcc, user_rtt_pre_restore;             \
         restored;                                      \
        nop; nop; nop; nop; nop;                        \
-        nop; nop; nop; nop; nop;                        \
+        nop; nop; nop;                                  \
        ba,a,pt %xcc, user_rtt_fill_fixup;              \
        ba,a,pt %xcc, user_rtt_fill_fixup;              \
        ba,a,pt %xcc, user_rtt_fill_fixup;
diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h
index 8974ef7ae920..cac719d1bc5c 100644
--- a/arch/sparc/include/uapi/asm/unistd.h
+++ b/arch/sparc/include/uapi/asm/unistd.h
@@ -405,8 +405,13 @@
 #define __NR_setns              337
 #define __NR_process_vm_readv   338
 #define __NR_process_vm_writev  339
+#define __NR_kern_features      340
+#define __NR_kcmp               341
-#define NR_syscalls             340
+#define NR_syscalls             342
+/* Bitmask values returned from kern_features system call.  */
+#define KERN_FEATURE_MIXED_MODE_STACK   0x00000001
 #ifdef __32bit_syscall_numbers__
 /* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,
diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h
index 0c218e4c0881..cc3c5cb47cda 100644
--- a/arch/sparc/kernel/entry.h
+++ b/arch/sparc/kernel/entry.h
@@ -59,6 +59,13 @@ struct popc_6insn_patch_entry {
 extern struct popc_6insn_patch_entry __popc_6insn_patch,
        __popc_6insn_patch_end;
+struct pause_patch_entry {
+        unsigned int    addr;
+        unsigned int    insns[3];
+};
+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 *);
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index f8b6eee40bde..87f60ee65433 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -56,11 +56,13 @@ static inline unsigned int leon_eirq_get(int cpu)
 static void leon_handle_ext_irq(unsigned int irq, struct irq_desc *desc)
 {
        unsigned int eirq;
+        struct irq_bucket *p;
        int cpu = sparc_leon3_cpuid();
        eirq = leon_eirq_get(cpu);
-        if ((eirq & 0x10) && irq_map[eirq]->irq) /* bit4 tells if IRQ happened */
+        p = irq_map[eirq];
-                generic_handle_irq(irq_map[eirq]->irq);
+        if ((eirq & 0x10) && p && p->irq) /* bit4 tells if IRQ happened */
+                generic_handle_irq(p->irq);
 }
 /* The extended IRQ controller has been found, this function registers it */
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 885a8af74064..b5c38faa4ead 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1762,15 +1762,25 @@ static void perf_callchain_user_32(struct perf_callchain_entry *entry,
        ufp = regs->u_regs[UREG_I6] & 0xffffffffUL;
        do {
-                struct sparc_stackf32 *usf, sf;
                unsigned long pc;
-                usf = (struct sparc_stackf32 *) ufp;
+                if (thread32_stack_is_64bit(ufp)) {
-                if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
+                        struct sparc_stackf *usf, sf;
-                        break;
-                pc = sf.callers_pc;
+                        ufp += STACK_BIAS;
-                ufp = (unsigned long)sf.fp;
+                        usf = (struct sparc_stackf *) 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;
+                        if (__copy_from_user_inatomic(&sf, usf, sizeof(sf)))
+                                break;
+                        pc = sf.callers_pc;
+                        ufp = (unsigned long)sf.fp;
+                }
                perf_callchain_store(entry, pc);
        } while (entry->nr < PERF_MAX_STACK_DEPTH);
 }
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index d778248ef3f8..c6e0c2910043 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -452,13 +452,16 @@ void flush_thread(void)
 /* It's a bit more tricky when 64-bit tasks are involved... */
 static unsigned long clone_stackframe(unsigned long csp, unsigned long psp)
 {
+        bool stack_64bit = test_thread_64bit_stack(psp);
        unsigned long fp, distance, rval;
-        if (!(test_thread_flag(TIF_32BIT))) {
+        if (stack_64bit) {
                csp += STACK_BIAS;
                psp += STACK_BIAS;
                __get_user(fp, &(((struct reg_window __user *)psp)->ins[6]));
                fp += STACK_BIAS;
+                if (test_thread_flag(TIF_32BIT))
+                        fp &= 0xffffffff;
        } else
                __get_user(fp, &(((struct reg_window32 __user *)psp)->ins[6]));
@@ -472,7 +475,7 @@ static unsigned long clone_stackframe(unsigned long csp, unsigned long psp)
        rval = (csp - distance);
        if (copy_in_user((void __user *) rval, (void __user *) psp, distance))
                rval = 0;
-        else if (test_thread_flag(TIF_32BIT)) {
+        else if (!stack_64bit) {
                if (put_user(((u32)csp),
                             &(((struct reg_window32 __user *)rval)->ins[6])))
                        rval = 0;
@@ -507,18 +510,18 @@ void synchronize_user_stack(void)
        flush_user_windows();
        if ((window = get_thread_wsaved()) != 0) {
-                int winsize = sizeof(struct reg_window);
-                int bias = 0;
-                if (test_thread_flag(TIF_32BIT))
-                        winsize = sizeof(struct reg_window32);
-                else
-                        bias = STACK_BIAS;
                window -= 1;
                do {
-                        unsigned long sp = (t->rwbuf_stkptrs[window] + bias);
                        struct reg_window *rwin = &t->reg_window[window];
+                        int winsize = sizeof(struct reg_window);
+                        unsigned long sp;
+                        sp = t->rwbuf_stkptrs[window];
+                        if (test_thread_64bit_stack(sp))
+                                sp += STACK_BIAS;
+                        else
+                                winsize = sizeof(struct reg_window32);
                        if (!copy_to_user((char __user *)sp, rwin, winsize)) {
                                shift_window_buffer(window, get_thread_wsaved() - 1, t);
@@ -544,13 +547,6 @@ void fault_in_user_windows(void)
 {
        struct thread_info *t = current_thread_info();
        unsigned long window;
-        int winsize = sizeof(struct reg_window);
-        int bias = 0;
-        if (test_thread_flag(TIF_32BIT))
-                winsize = sizeof(struct reg_window32);
-        else
-                bias = STACK_BIAS;
        flush_user_windows();
        window = get_thread_wsaved();
@@ -558,8 +554,16 @@ void fault_in_user_windows(void)
        if (likely(window != 0)) {
                window -= 1;
                do {
-                        unsigned long sp = (t->rwbuf_stkptrs[window] + bias);
                        struct reg_window *rwin = &t->reg_window[window];
+                        int winsize = sizeof(struct reg_window);
+                        unsigned long sp;
+                        sp = t->rwbuf_stkptrs[window];
+                        if (test_thread_64bit_stack(sp))
+                                sp += STACK_BIAS;
+                        else
+                                winsize = sizeof(struct reg_window32);
                        if (unlikely(sp & 0x7UL))
                                stack_unaligned(sp);
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 484dabac7045..7ff45e4ba681 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -151,7 +151,7 @@ static int regwindow64_get(struct task_struct *target,
 {
        unsigned long rw_addr = regs->u_regs[UREG_I6];
-        if (test_tsk_thread_flag(current, TIF_32BIT)) {
+        if (!test_thread_64bit_stack(rw_addr)) {
                struct reg_window32 win32;
                int i;
@@ -176,7 +176,7 @@ static int regwindow64_set(struct task_struct *target,
 {
        unsigned long rw_addr = regs->u_regs[UREG_I6];
-        if (test_tsk_thread_flag(current, TIF_32BIT)) {
+        if (!test_thread_64bit_stack(rw_addr)) {
                struct reg_window32 win32;
                int i;
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 0800e71d8a88..0eaf0059aaef 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -316,6 +316,25 @@ static void __init popc_patch(void)
        }
 }
+static void __init pause_patch(void)
+{
+        struct pause_patch_entry *p;
+        p = &__pause_3insn_patch;
+        while (p < &__pause_3insn_patch_end) {
+                unsigned long i, addr = p->addr;
+                for (i = 0; i < 3; i++) {
+                        *(unsigned int *) (addr +  (i * 4)) = p->insns[i];
+                        wmb();
+                        __asm__ __volatile__("flush     %0"
+                                             : : "r" (addr +  (i * 4)));
+                }
+                p++;
+        }
+}
 #ifdef CONFIG_SMP
 void __init boot_cpu_id_too_large(int cpu)
 {
@@ -528,6 +547,8 @@ static void __init init_sparc64_elf_hwcap(void)
        if (sparc64_elf_hwcap & AV_SPARC_POPC)
                popc_patch();
+        if (sparc64_elf_hwcap & AV_SPARC_PAUSE)
+                pause_patch();
 }
 void __init setup_arch(char **cmdline_p)
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 11c6c9603e71..878ef3d5fec5 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -751,3 +751,8 @@ int kernel_execve(const char *filename,
                      : "cc");
        return __res;
 }
+asmlinkage long sys_kern_features(void)
+{
+        return KERN_FEATURE_MIXED_MODE_STACK;
+}
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 63402f9e9f51..5147f574f125 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -85,3 +85,4 @@ sys_call_table:
 /*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init
 /*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime
 /*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
+/*340*/ .long sys_ni_syscall, sys_kcmp
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 3a58e0d66f51..1c9af9fa38e9 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -86,6 +86,7 @@ sys_call_table32:
        .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init
 /*330*/ .word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime
        .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev
+/*340*/ .word sys_kern_features, sys_kcmp
 #endif /* CONFIG_COMPAT */
@@ -163,3 +164,4 @@ sys_call_table:
        .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init
 /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime
        .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
+/*340*/ .word sys_kern_features, sys_kcmp
diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index f81d038f7340..8201c25e7669 100644
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -113,21 +113,24 @@ static inline long sign_extend_imm13(long imm)
 static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
 {
-        unsigned long value;
+        unsigned long value, fp;
        
        if (reg < 16)
                return (!reg ? 0 : regs->u_regs[reg]);
+        fp = regs->u_regs[UREG_FP];
        if (regs->tstate & TSTATE_PRIV) {
                struct reg_window *win;
-                win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window *)(fp + STACK_BIAS);
                value = win->locals[reg - 16];
-        } else if (test_thread_flag(TIF_32BIT)) {
+        } else if (!test_thread_64bit_stack(fp)) {
                struct reg_window32 __user *win32;
-                win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
                get_user(value, &win32->locals[reg - 16]);
        } else {
                struct reg_window __user *win;
-                win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window __user *)(fp + STACK_BIAS);
                get_user(value, &win->locals[reg - 16]);
        }
        return value;
@@ -135,19 +138,24 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
 static unsigned long *fetch_reg_addr(unsigned int reg, struct pt_regs *regs)
 {
+        unsigned long fp;
        if (reg < 16)
                return &regs->u_regs[reg];
+        fp = regs->u_regs[UREG_FP];
        if (regs->tstate & TSTATE_PRIV) {
                struct reg_window *win;
-                win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window *)(fp + STACK_BIAS);
                return &win->locals[reg - 16];
-        } else if (test_thread_flag(TIF_32BIT)) {
+        } else if (!test_thread_64bit_stack(fp)) {
                struct reg_window32 *win32;
-                win32 = (struct reg_window32 *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                win32 = (struct reg_window32 *)((unsigned long)((u32)fp));
                return (unsigned long *)&win32->locals[reg - 16];
        } else {
                struct reg_window *win;
-                win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window *)(fp + STACK_BIAS);
                return &win->locals[reg - 16];
        }
 }
@@ -392,13 +400,15 @@ int handle_popc(u32 insn, struct pt_regs *regs)
                if (rd)
                        regs->u_regs[rd] = ret;
        } else {
-                if (test_thread_flag(TIF_32BIT)) {
+                unsigned long fp = regs->u_regs[UREG_FP];
+                if (!test_thread_64bit_stack(fp)) {
                        struct reg_window32 __user *win32;
-                        win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                        win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
                        put_user(ret, &win32->locals[rd - 16]);
                } else {
                        struct reg_window __user *win;
-                        win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                        win = (struct reg_window __user *)(fp + STACK_BIAS);
                        put_user(ret, &win->locals[rd - 16]);
                }
        }
@@ -554,7 +564,7 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs)
                reg[0] = 0;
                if ((insn & 0x780000) == 0x180000)
                        reg[1] = 0;
-        } else if (test_thread_flag(TIF_32BIT)) {
+        } else if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) {
                put_user(0, (int __user *) reg);
                if ((insn & 0x780000) == 0x180000)
                        put_user(0, ((int __user *) reg) + 1);
diff --git a/arch/sparc/kernel/visemul.c b/arch/sparc/kernel/visemul.c
index 08e074b7eb6a..c096c624ac4d 100644
--- a/arch/sparc/kernel/visemul.c
+++ b/arch/sparc/kernel/visemul.c
@@ -149,21 +149,24 @@ static inline void maybe_flush_windows(unsigned int rs1, unsigned int rs2,
 static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
 {
-        unsigned long value;
+        unsigned long value, fp;
        
        if (reg < 16)
                return (!reg ? 0 : regs->u_regs[reg]);
+        fp = regs->u_regs[UREG_FP];
        if (regs->tstate & TSTATE_PRIV) {
                struct reg_window *win;
-                win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window *)(fp + STACK_BIAS);
                value = win->locals[reg - 16];
-        } else if (test_thread_flag(TIF_32BIT)) {
+        } else if (!test_thread_64bit_stack(fp)) {
                struct reg_window32 __user *win32;
-                win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
                get_user(value, &win32->locals[reg - 16]);
        } else {
                struct reg_window __user *win;
-                win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window __user *)(fp + STACK_BIAS);
                get_user(value, &win->locals[reg - 16]);
        }
        return value;
@@ -172,16 +175,18 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs)
 static inline unsigned long __user *__fetch_reg_addr_user(unsigned int reg,
                                                          struct pt_regs *regs)
 {
+        unsigned long fp = regs->u_regs[UREG_FP];
        BUG_ON(reg < 16);
        BUG_ON(regs->tstate & TSTATE_PRIV);
-        if (test_thread_flag(TIF_32BIT)) {
+        if (!test_thread_64bit_stack(fp)) {
                struct reg_window32 __user *win32;
-                win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
+                win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp));
                return (unsigned long __user *)&win32->locals[reg - 16];
        } else {
                struct reg_window __user *win;
-                win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS);
+                win = (struct reg_window __user *)(fp + STACK_BIAS);
                return &win->locals[reg - 16];
        }
 }
@@ -204,7 +209,7 @@ static void store_reg(struct pt_regs *regs, unsigned long val, unsigned long rd)
        } else {
                unsigned long __user *rd_user = __fetch_reg_addr_user(rd, regs);
-                if (test_thread_flag(TIF_32BIT))
+                if (!test_thread_64bit_stack(regs->u_regs[UREG_FP]))
                        __put_user((u32)val, (u32 __user *)rd_user);
                else
                        __put_user(val, rd_user);
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index 89c2c29f154b..0bacceb19150 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -132,6 +132,11 @@ SECTIONS
                *(.popc_6insn_patch)
                __popc_6insn_patch_end = .;
        }
+        .pause_3insn_patch : {
+                __pause_3insn_patch = .;
+                *(.pause_3insn_patch)
+                __pause_3insn_patch_end = .;
+        }
        PERCPU_SECTION(SMP_CACHE_BYTES)
        . = ALIGN(PAGE_SIZE);
diff --git a/arch/sparc/kernel/winfixup.S b/arch/sparc/kernel/winfixup.S
index a6b0863c27df..1e67ce958369 100644
--- a/arch/sparc/kernel/winfixup.S
+++ b/arch/sparc/kernel/winfixup.S
@@ -43,6 +43,8 @@ spill_fixup_mna:
 spill_fixup_dax:
        TRAP_LOAD_THREAD_REG(%g6, %g1)
        ldx     [%g6 + TI_FLAGS], %g1
+        andcc   %sp, 0x1, %g0
+        movne   %icc, 0, %g1
        andcc   %g1, _TIF_32BIT, %g0
        ldub    [%g6 + TI_WSAVED], %g1
        sll     %g1, 3, %g3
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
index 4d502da3de78..85c233d0a340 100644
--- a/arch/sparc/lib/atomic_64.S
+++ b/arch/sparc/lib/atomic_64.S
@@ -1,6 +1,6 @@
 /* atomic.S: These things are too big to do inline.
 *
- * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1999, 2007 2012 David S. Miller (davem@davemloft.net)
 */
 #include <linux/linkage.h>
@@ -117,3 +117,17 @@ ENTRY(atomic64_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
         sub    %g1, %o0, %o0
 2:      BACKOFF_SPIN(%o2, %o3, 1b)
 ENDPROC(atomic64_sub_ret)
+ENTRY(atomic64_dec_if_positive) /* %o0 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
+1:      ldx     [%o0], %g1
+        brlez,pn %g1, 3f
+         sub    %g1, 1, %g7
+        casx    [%o0], %g1, %g7
+        cmp     %g1, %g7
+        bne,pn  %xcc, BACKOFF_LABEL(2f, 1b)
+         nop
+3:      retl
+         sub    %g1, 1, %o0
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
+ENDPROC(atomic64_dec_if_positive)
diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
index ee31b884c61b..0c4e35e522fa 100644
--- a/arch/sparc/lib/ksyms.c
+++ b/arch/sparc/lib/ksyms.c
@@ -116,6 +116,7 @@ EXPORT_SYMBOL(atomic64_add);
 EXPORT_SYMBOL(atomic64_add_ret);
 EXPORT_SYMBOL(atomic64_sub);
 EXPORT_SYMBOL(atomic64_sub_ret);
+EXPORT_SYMBOL(atomic64_dec_if_positive);
 /* Atomic bit operations. */
 EXPORT_SYMBOL(test_and_set_bit);
diff --git a/arch/sparc/math-emu/math_64.c b/arch/sparc/math-emu/math_64.c
index 1704068da928..034aadbff036 100644
--- a/arch/sparc/math-emu/math_64.c
+++ b/arch/sparc/math-emu/math_64.c
@@ -320,7 +320,7 @@ int do_mathemu(struct pt_regs *regs, struct fpustate *f, bool illegal_insn_trap)
                                        XR = 0;
                                else if (freg < 16)
                                        XR = regs->u_regs[freg];
-                                else if (test_thread_flag(TIF_32BIT)) {
+                                else if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) {
                                        struct reg_window32 __user *win32;
                                        flushw_user ();
                                        win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP]));
diff --git a/arch/tile/Makefile b/arch/tile/Makefile
index 55640cf92597..3d15364c6071 100644
--- a/arch/tile/Makefile
+++ b/arch/tile/Makefile
@@ -26,6 +26,10 @@ $(error Set TILERA_ROOT or CROSS_COMPILE when building $(ARCH) on $(HOST_ARCH))
  endif
 endif
+# The tile compiler may emit .eh_frame information for backtracing.
+# In kernel modules, this causes load failures due to unsupported relocations.
+KBUILD_CFLAGS   += -fno-asynchronous-unwind-tables
 ifneq ($(CONFIG_DEBUG_EXTRA_FLAGS),"")
 KBUILD_CFLAGS   += $(CONFIG_DEBUG_EXTRA_FLAGS)
 endif
diff --git a/arch/tile/kernel/module.c b/arch/tile/kernel/module.c
index 001cbfa10ac6..243ffebe38d6 100644
--- a/arch/tile/kernel/module.c
+++ b/arch/tile/kernel/module.c
@@ -24,16 +24,6 @@
 #include <asm/homecache.h>
 #include <arch/opcode.h>
-#ifdef __tilegx__
-# define Elf_Rela Elf64_Rela
-# define ELF_R_SYM ELF64_R_SYM
-# define ELF_R_TYPE ELF64_R_TYPE
-#else
-# define Elf_Rela Elf32_Rela
-# define ELF_R_SYM ELF32_R_SYM
-# define ELF_R_TYPE ELF32_R_TYPE
-#endif
 #ifdef MODULE_DEBUG
 #define DEBUGP printk
 #else
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index c9dcc181d4d1..6e8fdf5ad113 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -35,7 +35,7 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...);
 #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6)       \
        efi_call_virt(f, a1, a2, a3, a4, a5, a6)
-#define efi_ioremap(addr, size, type)           ioremap_cache(addr, size)
+#define efi_ioremap(addr, size, type, attr)     ioremap_cache(addr, size)
 #else /* !CONFIG_X86_32 */
@@ -89,7 +89,7 @@ extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
                  (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
 extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size,
-                                 u32 type);
+                                 u32 type, u64 attribute);
 #endif /* CONFIG_X86_32 */
@@ -98,6 +98,8 @@ extern void efi_set_executable(efi_memory_desc_t *md, bool executable);
 extern int efi_memblock_x86_reserve_range(void);
 extern void efi_call_phys_prelog(void);
 extern void efi_call_phys_epilog(void);
+extern void efi_unmap_memmap(void);
+extern void efi_memory_uc(u64 addr, unsigned long size);
 #ifndef CONFIG_EFI
 /*
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index 59c226d120cd..c20d1ce62dc6 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -359,18 +359,14 @@ HYPERVISOR_update_va_mapping(unsigned long va, pte_t new_val,
                return _hypercall4(int, update_va_mapping, va,
                                   new_val.pte, new_val.pte >> 32, flags);
 }
+extern int __must_check xen_event_channel_op_compat(int, void *);
 static inline int
 HYPERVISOR_event_channel_op(int cmd, void *arg)
 {
        int rc = _hypercall2(int, event_channel_op, cmd, arg);
-        if (unlikely(rc == -ENOSYS)) {
+        if (unlikely(rc == -ENOSYS))
-                struct evtchn_op op;
+                rc = xen_event_channel_op_compat(cmd, arg);
-                op.cmd = cmd;
-                memcpy(&op.u, arg, sizeof(op.u));
-                rc = _hypercall1(int, event_channel_op_compat, &op);
-                memcpy(arg, &op.u, sizeof(op.u));
-        }
        return rc;
 }
@@ -386,17 +382,14 @@ HYPERVISOR_console_io(int cmd, int count, char *str)
        return _hypercall3(int, console_io, cmd, count, str);
 }
+extern int __must_check HYPERVISOR_physdev_op_compat(int, void *);
 static inline int
 HYPERVISOR_physdev_op(int cmd, void *arg)
 {
        int rc = _hypercall2(int, physdev_op, cmd, arg);
-        if (unlikely(rc == -ENOSYS)) {
+        if (unlikely(rc == -ENOSYS))
-                struct physdev_op op;
+                rc = HYPERVISOR_physdev_op_compat(cmd, arg);
-                op.cmd = cmd;
-                memcpy(&op.u, arg, sizeof(op.u));
-                rc = _hypercall1(int, physdev_op_compat, &op);
-                memcpy(arg, &op.u, sizeof(op.u));
-        }
        return rc;
 }
diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h
index 66d0fff1ee84..125f344f06a9 100644
--- a/arch/x86/include/asm/xen/hypervisor.h
+++ b/arch/x86/include/asm/xen/hypervisor.h
@@ -33,7 +33,6 @@
 #ifndef _ASM_X86_XEN_HYPERVISOR_H
 #define _ASM_X86_XEN_HYPERVISOR_H
-/* arch/i386/kernel/setup.c */
 extern struct shared_info *HYPERVISOR_shared_info;
 extern struct start_info *xen_start_info;
diff --git a/arch/x86/include/asm/xen/interface.h b/arch/x86/include/asm/xen/interface.h
index 6d2f75a82a14..54d52ff1304a 100644
--- a/arch/x86/include/asm/xen/interface.h
+++ b/arch/x86/include/asm/xen/interface.h
@@ -51,14 +51,14 @@
 * with Xen so that on ARM we can have one ABI that works for 32 and 64
 * bit guests. */
 typedef unsigned long xen_pfn_t;
+#define PRI_xen_pfn "lx"
 typedef unsigned long xen_ulong_t;
+#define PRI_xen_ulong "lx"
 /* Guest handles for primitive C types. */
 __DEFINE_GUEST_HANDLE(uchar, unsigned char);
 __DEFINE_GUEST_HANDLE(uint,  unsigned int);
-__DEFINE_GUEST_HANDLE(ulong, unsigned long);
 DEFINE_GUEST_HANDLE(char);
 DEFINE_GUEST_HANDLE(int);
-DEFINE_GUEST_HANDLE(long);
 DEFINE_GUEST_HANDLE(void);
 DEFINE_GUEST_HANDLE(uint64_t);
 DEFINE_GUEST_HANDLE(uint32_t);
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index c265593ec2cd..1817fa911024 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2257,6 +2257,9 @@ asmlinkage void smp_irq_move_cleanup_interrupt(void)
                        continue;
                cfg = irq_cfg(irq);
+                if (!cfg)
+                        continue;
                raw_spin_lock(&desc->lock);
                /*
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 3373f84d1397..4a3374e61a93 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -208,12 +208,14 @@ static bool check_hw_exists(void)
        }
        /*
-         * Now write a value and read it back to see if it matches,
+         * Read the current value, change it and read it back to see if it
-         * this is needed to detect certain hardware emulators (qemu/kvm)
+         * matches, this is needed to detect certain hardware emulators
-         * that don't trap on the MSR access and always return 0s.
+         * (qemu/kvm) that don't trap on the MSR access and always return 0s.
         */
-        val = 0xabcdUL;
        reg = x86_pmu_event_addr(0);
+        if (rdmsrl_safe(reg, &val))
+                goto msr_fail;
+        val ^= 0xffffUL;
        ret = wrmsrl_safe(reg, val);
        ret |= rdmsrl_safe(reg, &val_new);
        if (ret || val != val_new)
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 99d96a4978b5..3cf3d97cce3a 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -118,22 +118,24 @@ static void snbep_uncore_pci_disable_box(struct intel_uncore_box *box)
 {
        struct pci_dev *pdev = box->pci_dev;
        int box_ctl = uncore_pci_box_ctl(box);
-        u32 config;
+        u32 config = 0;
-        pci_read_config_dword(pdev, box_ctl, &config);
+        if (!pci_read_config_dword(pdev, box_ctl, &config)) {
-        config |= SNBEP_PMON_BOX_CTL_FRZ;
+                config |= SNBEP_PMON_BOX_CTL_FRZ;
-        pci_write_config_dword(pdev, box_ctl, config);
+                pci_write_config_dword(pdev, box_ctl, config);
+        }
 }
 static void snbep_uncore_pci_enable_box(struct intel_uncore_box *box)
 {
        struct pci_dev *pdev = box->pci_dev;
        int box_ctl = uncore_pci_box_ctl(box);
-        u32 config;
+        u32 config = 0;
-        pci_read_config_dword(pdev, box_ctl, &config);
+        if (!pci_read_config_dword(pdev, box_ctl, &config)) {
-        config &= ~SNBEP_PMON_BOX_CTL_FRZ;
+                config &= ~SNBEP_PMON_BOX_CTL_FRZ;
-        pci_write_config_dword(pdev, box_ctl, config);
+                pci_write_config_dword(pdev, box_ctl, config);
+        }
 }
 static void snbep_uncore_pci_enable_event(struct intel_uncore_box *box, struct perf_event *event)
@@ -156,7 +158,7 @@ static u64 snbep_uncore_pci_read_counter(struct intel_uncore_box *box, struct pe
 {
        struct pci_dev *pdev = box->pci_dev;
        struct hw_perf_event *hwc = &event->hw;
-        u64 count;
+        u64 count = 0;
        pci_read_config_dword(pdev, hwc->event_base, (u32 *)&count);
        pci_read_config_dword(pdev, hwc->event_base + 4, (u32 *)&count + 1);
@@ -603,11 +605,12 @@ static struct pci_driver snbep_uncore_pci_driver = {
 /*
 * build pci bus to socket mapping
 */
-static void snbep_pci2phy_map_init(void)
+static int snbep_pci2phy_map_init(void)
 {
        struct pci_dev *ubox_dev = NULL;
        int i, bus, nodeid;
-        u32 config;
+        int err = 0;
+        u32 config = 0;
        while (1) {
                /* find the UBOX device */
@@ -618,10 +621,14 @@ static void snbep_pci2phy_map_init(void)
                        break;
                bus = ubox_dev->bus->number;
                /* get the Node ID of the local register */
-                pci_read_config_dword(ubox_dev, 0x40, &config);
+                err = pci_read_config_dword(ubox_dev, 0x40, &config);
+                if (err)
+                        break;
                nodeid = config;
                /* get the Node ID mapping */
-                pci_read_config_dword(ubox_dev, 0x54, &config);
+                err = pci_read_config_dword(ubox_dev, 0x54, &config);
+                if (err)
+                        break;
                /*
                 * every three bits in the Node ID mapping register maps
                 * to a particular node.
@@ -633,7 +640,11 @@ static void snbep_pci2phy_map_init(void)
                        }
                }
        };
-        return;
+        if (ubox_dev)
+                pci_dev_put(ubox_dev);
+        return err ? pcibios_err_to_errno(err) : 0;
 }
 /* end of Sandy Bridge-EP uncore support */
@@ -1547,7 +1558,6 @@ void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event)
 {
        struct hw_perf_event *hwc = &event->hw;
        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
-        int port;
        /* adjust the main event selector and extra register index */
        if (reg1->idx % 2) {
@@ -1559,7 +1569,6 @@ void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event)
        }
        /* adjust extra register config */
-        port = reg1->idx / 6 + box->pmu->pmu_idx * 4;
        switch (reg1->idx % 6) {
        case 2:
                /* shift the 8~15 bits to the 0~7 bits */
@@ -2578,9 +2587,11 @@ static int __init uncore_pci_init(void)
        switch (boot_cpu_data.x86_model) {
        case 45: /* Sandy Bridge-EP */
+                ret = snbep_pci2phy_map_init();
+                if (ret)
+                        return ret;
                pci_uncores = snbep_pci_uncores;
                uncore_pci_driver = &snbep_uncore_pci_driver;
-                snbep_pci2phy_map_init();
                break;
        default:
                return 0;
@@ -2926,6 +2937,9 @@ static int __init intel_uncore_init(void)
        if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
                return -ENODEV;
+        if (cpu_has_hypervisor)
+                return -ENODEV;
        ret = uncore_pci_init();
        if (ret)
                goto fail;
diff --git a/arch/x86/kernel/cpu/perf_event_knc.c b/arch/x86/kernel/cpu/perf_event_knc.c
index 7c46bfdbc373..4b7731bf23a8 100644
--- a/arch/x86/kernel/cpu/perf_event_knc.c
+++ b/arch/x86/kernel/cpu/perf_event_knc.c
@@ -3,6 +3,8 @@
 #include <linux/perf_event.h>
 #include <linux/types.h>
+#include <asm/hardirq.h>
 #include "perf_event.h"
 static const u64 knc_perfmon_event_map[] =
@@ -173,30 +175,100 @@ static void knc_pmu_enable_all(int added)
 static inline void
 knc_pmu_disable_event(struct perf_event *event)
 {
-        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
        struct hw_perf_event *hwc = &event->hw;
        u64 val;
        val = hwc->config;
-        if (cpuc->enabled)
+        val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
-                val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
        (void)wrmsrl_safe(hwc->config_base + hwc->idx, val);
 }
 static void knc_pmu_enable_event(struct perf_event *event)
 {
-        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
        struct hw_perf_event *hwc = &event->hw;
        u64 val;
        val = hwc->config;
-        if (cpuc->enabled)
+        val |= ARCH_PERFMON_EVENTSEL_ENABLE;
-                val |= ARCH_PERFMON_EVENTSEL_ENABLE;
        (void)wrmsrl_safe(hwc->config_base + hwc->idx, val);
 }
+static inline u64 knc_pmu_get_status(void)
+{
+        u64 status;
+        rdmsrl(MSR_KNC_IA32_PERF_GLOBAL_STATUS, status);
+        return status;
+}
+static inline void knc_pmu_ack_status(u64 ack)
+{
+        wrmsrl(MSR_KNC_IA32_PERF_GLOBAL_OVF_CONTROL, ack);
+}
+static int knc_pmu_handle_irq(struct pt_regs *regs)
+{
+        struct perf_sample_data data;
+        struct cpu_hw_events *cpuc;
+        int handled = 0;
+        int bit, loops;
+        u64 status;
+        cpuc = &__get_cpu_var(cpu_hw_events);
+        knc_pmu_disable_all();
+        status = knc_pmu_get_status();
+        if (!status) {
+                knc_pmu_enable_all(0);
+                return handled;
+        }
+        loops = 0;
+again:
+        knc_pmu_ack_status(status);
+        if (++loops > 100) {
+                WARN_ONCE(1, "perf: irq loop stuck!\n");
+                perf_event_print_debug();
+                goto done;
+        }
+        inc_irq_stat(apic_perf_irqs);
+        for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
+                struct perf_event *event = cpuc->events[bit];
+                handled++;
+                if (!test_bit(bit, cpuc->active_mask))
+                        continue;
+                if (!intel_pmu_save_and_restart(event))
+                        continue;
+                perf_sample_data_init(&data, 0, event->hw.last_period);
+                if (perf_event_overflow(event, &data, regs))
+                        x86_pmu_stop(event, 0);
+        }
+        /*
+         * Repeat if there is more work to be done:
+         */
+        status = knc_pmu_get_status();
+        if (status)
+                goto again;
+done:
+        knc_pmu_enable_all(0);
+        return handled;
+}
 PMU_FORMAT_ATTR(event,  "config:0-7"    );
 PMU_FORMAT_ATTR(umask,  "config:8-15"   );
 PMU_FORMAT_ATTR(edge,   "config:18"     );
@@ -214,7 +286,7 @@ static struct attribute *intel_knc_formats_attr[] = {
 static __initconst struct x86_pmu knc_pmu = {
        .name                   = "knc",
-        .handle_irq             = x86_pmu_handle_irq,
+        .handle_irq             = knc_pmu_handle_irq,
        .disable_all            = knc_pmu_disable_all,
        .enable_all             = knc_pmu_enable_all,
        .enable                 = knc_pmu_enable_event,
@@ -226,12 +298,11 @@ static __initconst struct x86_pmu knc_pmu = {
        .event_map              = knc_pmu_event_map,
        .max_events             = ARRAY_SIZE(knc_perfmon_event_map),
        .apic                   = 1,
-        .max_period             = (1ULL << 31) - 1,
+        .max_period             = (1ULL << 39) - 1,
        .version                = 0,
        .num_counters           = 2,
-        /* in theory 40 bits, early silicon is buggy though */
+        .cntval_bits            = 40,
-        .cntval_bits            = 32,
+        .cntval_mask            = (1ULL << 40) - 1,
-        .cntval_mask            = (1ULL << 32) - 1,
        .get_event_constraints  = x86_get_event_constraints,
        .event_constraints      = knc_event_constraints,
        .format_attrs           = intel_knc_formats_attr,
diff --git a/arch/x86/kernel/cpu/perf_event_p6.c b/arch/x86/kernel/cpu/perf_event_p6.c
index e4dd0f7a0453..7d0270bd793e 100644
--- a/arch/x86/kernel/cpu/perf_event_p6.c
+++ b/arch/x86/kernel/cpu/perf_event_p6.c
@@ -8,13 +8,106 @@
 */
 static const u64 p6_perfmon_event_map[] =
 {
-  [PERF_COUNT_HW_CPU_CYCLES]            = 0x0079,
+  [PERF_COUNT_HW_CPU_CYCLES]            = 0x0079,       /* CPU_CLK_UNHALTED */
-  [PERF_COUNT_HW_INSTRUCTIONS]          = 0x00c0,
+  [PERF_COUNT_HW_INSTRUCTIONS]          = 0x00c0,       /* INST_RETIRED     */
-  [PERF_COUNT_HW_CACHE_REFERENCES]      = 0x0f2e,
+  [PERF_COUNT_HW_CACHE_REFERENCES]      = 0x0f2e,       /* L2_RQSTS:M:E:S:I */
-  [PERF_COUNT_HW_CACHE_MISSES]          = 0x012e,
+  [PERF_COUNT_HW_CACHE_MISSES]          = 0x012e,       /* L2_RQSTS:I       */
-  [PERF_COUNT_HW_BRANCH_INSTRUCTIONS]   = 0x00c4,
+  [PERF_COUNT_HW_BRANCH_INSTRUCTIONS]   = 0x00c4,       /* BR_INST_RETIRED  */
-  [PERF_COUNT_HW_BRANCH_MISSES]         = 0x00c5,
+  [PERF_COUNT_HW_BRANCH_MISSES]         = 0x00c5,       /* BR_MISS_PRED_RETIRED */
-  [PERF_COUNT_HW_BUS_CYCLES]            = 0x0062,
+  [PERF_COUNT_HW_BUS_CYCLES]            = 0x0062,       /* BUS_DRDY_CLOCKS  */
+  [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00a2,     /* RESOURCE_STALLS  */
+};
+static __initconst u64 p6_hw_cache_event_ids
+                                [PERF_COUNT_HW_CACHE_MAX]
+                                [PERF_COUNT_HW_CACHE_OP_MAX]
+                                [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+        [ C(OP_READ) ] = {
+                [ C(RESULT_ACCESS) ] = 0x0043,  /* DATA_MEM_REFS       */
+                [ C(RESULT_MISS)   ] = 0x0045,  /* DCU_LINES_IN        */
+        },
+        [ C(OP_WRITE) ] = {
+                [ C(RESULT_ACCESS) ] = 0,
+                [ C(RESULT_MISS)   ] = 0x0f29,  /* L2_LD:M:E:S:I       */
+        },
+        [ C(OP_PREFETCH) ] = {
+                [ C(RESULT_ACCESS) ] = 0,
+                [ C(RESULT_MISS)   ] = 0,
+        },
+ },
+ [ C(L1I ) ] = {
+        [ C(OP_READ) ] = {
+                [ C(RESULT_ACCESS) ] = 0x0080,  /* IFU_IFETCH         */
+                [ C(RESULT_MISS)   ] = 0x0f28,  /* L2_IFETCH:M:E:S:I  */
+        },
+        [ C(OP_WRITE) ] = {
+                [ C(RESULT_ACCESS) ] = -1,
+                [ C(RESULT_MISS)   ] = -1,
+        },
+        [ C(OP_PREFETCH) ] = {
+                [ C(RESULT_ACCESS) ] = 0,
+                [ C(RESULT_MISS)   ] = 0,
+        },
+ },
+ [ C(LL  ) ] = {
+        [ C(OP_READ) ] = {
+                [ C(RESULT_ACCESS) ] = 0,
+                [ C(RESULT_MISS)   ] = 0,
+        },
+        [ C(OP_WRITE) ] = {
+                [ C(RESULT_ACCESS) ] = 0,
+                [ C(RESULT_MISS)   ] = 0x0025,  /* L2_M_LINES_INM     */
+        },
+        [ C(OP_PREFETCH) ] = {
+                [ C(RESULT_ACCESS) ] = 0,
+                [ C(RESULT_MISS)   ] = 0,
+        },
+ },
+ [ C(DTLB) ] = {
+        [ C(OP_READ) ] = {
+                [ C(RESULT_ACCESS) ] = 0x0043,  /* DATA_MEM_REFS      */
+                [ C(RESULT_MISS)   ] = 0,
+        },
+        [ C(OP_WRITE) ] = {
+                [ C(RESULT_ACCESS) ] = 0,
+                [ C(RESULT_MISS)   ] = 0,
+        },
+        [ C(OP_PREFETCH) ] = {
+                [ C(RESULT_ACCESS) ] = 0,
+                [ C(RESULT_MISS)   ] = 0,
+        },
+ },
+ [ C(ITLB) ] = {
+        [ C(OP_READ) ] = {
+                [ C(RESULT_ACCESS) ] = 0x0080,  /* IFU_IFETCH         */
+                [ C(RESULT_MISS)   ] = 0x0085,  /* ITLB_MISS          */
+        },
+        [ C(OP_WRITE) ] = {
+                [ C(RESULT_ACCESS) ] = -1,
+                [ C(RESULT_MISS)   ] = -1,
+        },
+        [ C(OP_PREFETCH) ] = {
+                [ C(RESULT_ACCESS) ] = -1,
+                [ C(RESULT_MISS)   ] = -1,
+        },
+ },
+ [ C(BPU ) ] = {
+        [ C(OP_READ) ] = {
+                [ C(RESULT_ACCESS) ] = 0x00c4,  /* BR_INST_RETIRED      */
+                [ C(RESULT_MISS)   ] = 0x00c5,  /* BR_MISS_PRED_RETIRED */
+        },
+        [ C(OP_WRITE) ] = {
+                [ C(RESULT_ACCESS) ] = -1,
+                [ C(RESULT_MISS)   ] = -1,
+        },
+        [ C(OP_PREFETCH) ] = {
+                [ C(RESULT_ACCESS) ] = -1,
+                [ C(RESULT_MISS)   ] = -1,
+        },
+ },
 };
 static u64 p6_pmu_event_map(int hw_event)
@@ -34,7 +127,7 @@ static struct event_constraint p6_event_constraints[] =
 {
        INTEL_EVENT_CONSTRAINT(0xc1, 0x1),      /* FLOPS */
        INTEL_EVENT_CONSTRAINT(0x10, 0x1),      /* FP_COMP_OPS_EXE */
-        INTEL_EVENT_CONSTRAINT(0x11, 0x1),      /* FP_ASSIST */
+        INTEL_EVENT_CONSTRAINT(0x11, 0x2),      /* FP_ASSIST */
        INTEL_EVENT_CONSTRAINT(0x12, 0x2),      /* MUL */
        INTEL_EVENT_CONSTRAINT(0x13, 0x2),      /* DIV */
        INTEL_EVENT_CONSTRAINT(0x14, 0x1),      /* CYCLES_DIV_BUSY */
@@ -64,25 +157,25 @@ static void p6_pmu_enable_all(int added)
 static inline void
 p6_pmu_disable_event(struct perf_event *event)
 {
-        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
        struct hw_perf_event *hwc = &event->hw;
        u64 val = P6_NOP_EVENT;
-        if (cpuc->enabled)
-                val |= ARCH_PERFMON_EVENTSEL_ENABLE;
        (void)wrmsrl_safe(hwc->config_base, val);
 }
 static void p6_pmu_enable_event(struct perf_event *event)
 {
-        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
        struct hw_perf_event *hwc = &event->hw;
        u64 val;
        val = hwc->config;
-        if (cpuc->enabled)
-                val |= ARCH_PERFMON_EVENTSEL_ENABLE;
+        /*
+         * p6 only has a global event enable, set on PerfEvtSel0
+         * We "disable" events by programming P6_NOP_EVENT
+         * and we rely on p6_pmu_enable_all() being called
+         * to actually enable the events.
+         */
        (void)wrmsrl_safe(hwc->config_base, val);
 }
@@ -158,5 +251,9 @@ __init int p6_pmu_init(void)
        x86_pmu = p6_pmu;
+        memcpy(hw_cache_event_ids, p6_hw_cache_event_ids,
+                sizeof(hw_cache_event_ids));
        return 0;
 }
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index ed858e9e9a74..df06ade26bef 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1077,6 +1077,9 @@ void __init memblock_x86_fill(void)
                memblock_add(ei->addr, ei->size);
        }
+        /* throw away partial pages */
+        memblock_trim_memory(PAGE_SIZE);
        memblock_dump_all();
 }
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index a1193aef6d7d..88b725aa1d52 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1035,7 +1035,7 @@ ENTRY(xen_sysenter_target)
 ENTRY(xen_hypervisor_callback)
        CFI_STARTPROC
-        pushl_cfi $0
+        pushl_cfi $-1 /* orig_ax = -1 => not a system call */
        SAVE_ALL
        TRACE_IRQS_OFF
@@ -1077,14 +1077,16 @@ ENTRY(xen_failsafe_callback)
 2:      mov 8(%esp),%es
 3:      mov 12(%esp),%fs
 4:      mov 16(%esp),%gs
+        /* EAX == 0 => Category 1 (Bad segment)
+           EAX != 0 => Category 2 (Bad IRET) */
        testl %eax,%eax
        popl_cfi %eax
        lea 16(%esp),%esp
        CFI_ADJUST_CFA_OFFSET -16
        jz 5f
        addl $16,%esp
-        jmp iret_exc            # EAX != 0 => Category 2 (Bad IRET)
+        jmp iret_exc
-5:      pushl_cfi $0            # EAX == 0 => Category 1 (Bad segment)
+5:      pushl_cfi $-1 /* orig_ax = -1 => not a system call */
        SAVE_ALL
        jmp ret_from_exception
        CFI_ENDPROC
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 0c58952d64e8..b51b2c7ee51f 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1435,7 +1435,7 @@ ENTRY(xen_failsafe_callback)
        CFI_RESTORE r11
        addq $0x30,%rsp
        CFI_ADJUST_CFA_OFFSET -0x30
-        pushq_cfi $0
+        pushq_cfi $-1 /* orig_ax = -1 => not a system call */
        SAVE_ALL
        jmp error_exit
        CFI_ENDPROC
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index b3e5e51bc907..4180a874c764 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -247,7 +247,10 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
                break;
        case KVM_PV_REASON_PAGE_NOT_PRESENT:
                /* page is swapped out by the host. */
+                rcu_irq_enter();
+                exit_idle();
                kvm_async_pf_task_wait((u32)read_cr2());
+                rcu_irq_exit();
                break;
        case KVM_PV_REASON_PAGE_READY:
                rcu_irq_enter();
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 468e98dfd44e..ca45696f30fb 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -921,18 +921,19 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_X86_64
        if (max_pfn > max_low_pfn) {
                int i;
-                for (i = 0; i < e820.nr_map; i++) {
+                unsigned long start, end;
-                        struct e820entry *ei = &e820.map[i];
+                unsigned long start_pfn, end_pfn;
-                        if (ei->addr + ei->size <= 1UL << 32)
+                for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn,
-                                continue;
+                                                         NULL) {
-                        if (ei->type == E820_RESERVED)
+                        end = PFN_PHYS(end_pfn);
+                        if (end <= (1UL<<32))
                                continue;
+                        start = PFN_PHYS(start_pfn);
                        max_pfn_mapped = init_memory_mapping(
-                                ei->addr < 1UL << 32 ? 1UL << 32 : ei->addr,
+                                                max((1UL<<32), start), end);
-                                ei->addr + ei->size);
                }
                /* can we preseve max_low_pfn ?*/
@@ -1048,6 +1049,18 @@ void __init setup_arch(char **cmdline_p)
        arch_init_ideal_nops();
        register_refined_jiffies(CLOCK_TICK_RATE);
+#ifdef CONFIG_EFI
+        /* Once setup is done above, disable efi_enabled on mismatched
+         * firmware/kernel archtectures since there is no support for
+         * runtime services.
+         */
+        if (efi_enabled && IS_ENABLED(CONFIG_X86_64) != efi_64bit) {
+                pr_info("efi: Setup done, disabling due to 32/64-bit mismatch\n");
+                efi_unmap_memmap();
+                efi_enabled = 0;
+        }
+#endif
 }
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 29ad351804e9..70b27ee6118e 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -824,10 +824,8 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
                mce_notify_process();
 #endif /* CONFIG_X86_64 && CONFIG_X86_MCE */
-        if (thread_info_flags & _TIF_UPROBE) {
+        if (thread_info_flags & _TIF_UPROBE)
-                clear_thread_flag(TIF_UPROBE);
                uprobe_notify_resume(regs);
-        }
        /* deal with pending signal delivery */
        if (thread_info_flags & _TIF_SIGPENDING)
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index 9538f00827a9..aafa5557b396 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -651,31 +651,19 @@ void arch_uprobe_abort_xol(struct arch_uprobe *auprobe, struct pt_regs *regs)
 /*
 * Skip these instructions as per the currently known x86 ISA.
- * 0x66* { 0x90 | 0x0f 0x1f | 0x0f 0x19 | 0x87 0xc0 }
+ * rep=0x66*; nop=0x90
 */
 static bool __skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs)
 {
        int i;
        for (i = 0; i < MAX_UINSN_BYTES; i++) {
-                if ((auprobe->insn[i] == 0x66))
+                if (auprobe->insn[i] == 0x66)
                        continue;
                if (auprobe->insn[i] == 0x90)
                        return true;
-                if (i == (MAX_UINSN_BYTES - 1))
-                        break;
-                if ((auprobe->insn[i] == 0x0f) && (auprobe->insn[i+1] == 0x1f))
-                        return true;
-                if ((auprobe->insn[i] == 0x0f) && (auprobe->insn[i+1] == 0x19))
-                        return true;
-                if ((auprobe->insn[i] == 0x87) && (auprobe->insn[i+1] == 0xc0))
-                        return true;
                break;
        }
        return false;
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index c6e6b721b6ee..43e9fadca5d0 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1311,7 +1311,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
        vcpu->arch.apic_base = value;
        if (apic_x2apic_mode(apic)) {
                u32 id = kvm_apic_id(apic);
-                u32 ldr = ((id & ~0xf) << 16) | (1 << (id & 0xf));
+                u32 ldr = ((id >> 4) << 16) | (1 << (id & 0xf));
                kvm_apic_set_ldr(apic, ldr);
        }
        apic->base_address = apic->vcpu->arch.apic_base &
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d289fee1ffb8..6f85fe0bf958 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2497,8 +2497,7 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
                }
        }
-        if (!is_error_pfn(pfn))
+        kvm_release_pfn_clean(pfn);
-                kvm_release_pfn_clean(pfn);
 }
 static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1eefebe5d727..224a7e78cb6c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3779,7 +3779,7 @@ static int write_exit_mmio(struct kvm_vcpu *vcpu, gpa_t gpa,
 {
        struct kvm_mmio_fragment *frag = &vcpu->mmio_fragments[0];
-        memcpy(vcpu->run->mmio.data, frag->data, frag->len);
+        memcpy(vcpu->run->mmio.data, frag->data, min(8u, frag->len));
        return X86EMUL_CONTINUE;
 }
@@ -3832,18 +3832,11 @@ mmio:
        bytes -= handled;
        val += handled;
-        while (bytes) {
+        WARN_ON(vcpu->mmio_nr_fragments >= KVM_MAX_MMIO_FRAGMENTS);
-                unsigned now = min(bytes, 8U);
+        frag = &vcpu->mmio_fragments[vcpu->mmio_nr_fragments++];
+        frag->gpa = gpa;
-                frag = &vcpu->mmio_fragments[vcpu->mmio_nr_fragments++];
+        frag->data = val;
-                frag->gpa = gpa;
+        frag->len = bytes;
-                frag->data = val;
-                frag->len = now;
-                gpa += now;
-                val += now;
-                bytes -= now;
-        }
        return X86EMUL_CONTINUE;
 }
@@ -3890,7 +3883,7 @@ int emulator_read_write(struct x86_emulate_ctxt *ctxt, unsigned long addr,
        vcpu->mmio_needed = 1;
        vcpu->mmio_cur_fragment = 0;
-        vcpu->run->mmio.len = vcpu->mmio_fragments[0].len;
+        vcpu->run->mmio.len = min(8u, vcpu->mmio_fragments[0].len);
        vcpu->run->mmio.is_write = vcpu->mmio_is_write = ops->write;
        vcpu->run->exit_reason = KVM_EXIT_MMIO;
        vcpu->run->mmio.phys_addr = gpa;
@@ -5522,28 +5515,44 @@ static int complete_emulated_pio(struct kvm_vcpu *vcpu)
 *
 * read:
 *   for each fragment
- *     write gpa, len
+ *     for each mmio piece in the fragment
- *     exit
+ *       write gpa, len
- *     copy data
+ *       exit
+ *       copy data
 *   execute insn
 *
 * write:
 *   for each fragment
- *      write gpa, len
+ *     for each mmio piece in the fragment
- *      copy data
+ *       write gpa, len
- *      exit
+ *       copy data
+ *       exit
 */
 static int complete_emulated_mmio(struct kvm_vcpu *vcpu)
 {
        struct kvm_run *run = vcpu->run;
        struct kvm_mmio_fragment *frag;
+        unsigned len;
        BUG_ON(!vcpu->mmio_needed);
        /* Complete previous fragment */
-        frag = &vcpu->mmio_fragments[vcpu->mmio_cur_fragment++];
+        frag = &vcpu->mmio_fragments[vcpu->mmio_cur_fragment];
+        len = min(8u, frag->len);
        if (!vcpu->mmio_is_write)
-                memcpy(frag->data, run->mmio.data, frag->len);
+                memcpy(frag->data, run->mmio.data, len);
+        if (frag->len <= 8) {
+                /* Switch to the next fragment. */
+                frag++;
+                vcpu->mmio_cur_fragment++;
+        } else {
+                /* Go forward to the next mmio piece. */
+                frag->data += len;
+                frag->gpa += len;
+                frag->len -= len;
+        }
        if (vcpu->mmio_cur_fragment == vcpu->mmio_nr_fragments) {
                vcpu->mmio_needed = 0;
                if (vcpu->mmio_is_write)
@@ -5551,13 +5560,12 @@ static int complete_emulated_mmio(struct kvm_vcpu *vcpu)
                vcpu->mmio_read_completed = 1;
                return complete_emulated_io(vcpu);
        }
-        /* Initiate next fragment */
-        ++frag;
        run->exit_reason = KVM_EXIT_MMIO;
        run->mmio.phys_addr = frag->gpa;
        if (vcpu->mmio_is_write)
-                memcpy(run->mmio.data, frag->data, frag->len);
+                memcpy(run->mmio.data, frag->data, min(8u, frag->len));
-        run->mmio.len = frag->len;
+        run->mmio.len = min(8u, frag->len);
        run->mmio.is_write = vcpu->mmio_is_write;
        vcpu->arch.complete_userspace_io = complete_emulated_mmio;
        return 0;
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index ab1f6a93b527..d7aea41563b3 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -35,40 +35,44 @@ struct map_range {
        unsigned page_size_mask;
 };
-static void __init find_early_table_space(struct map_range *mr, unsigned long end,
+/*
-                                          int use_pse, int use_gbpages)
+ * First calculate space needed for kernel direct mapping page tables to cover
+ * mr[0].start to mr[nr_range - 1].end, while accounting for possible 2M and 1GB
+ * pages. Then find enough contiguous space for those page tables.
+ */
+static void __init find_early_table_space(struct map_range *mr, int nr_range)
 {
-        unsigned long puds, pmds, ptes, tables, start = 0, good_end = end;
+        int i;
+        unsigned long puds = 0, pmds = 0, ptes = 0, tables;
+        unsigned long start = 0, good_end;
        phys_addr_t base;
-        puds = (end + PUD_SIZE - 1) >> PUD_SHIFT;
+        for (i = 0; i < nr_range; i++) {
-        tables = roundup(puds * sizeof(pud_t), PAGE_SIZE);
+                unsigned long range, extra;
-        if (use_gbpages) {
-                unsigned long extra;
-                extra = end - ((end>>PUD_SHIFT) << PUD_SHIFT);
-                pmds = (extra + PMD_SIZE - 1) >> PMD_SHIFT;
-        } else
-                pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT;
-        tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE);
+                range = mr[i].end - mr[i].start;
+                puds += (range + PUD_SIZE - 1) >> PUD_SHIFT;
-        if (use_pse) {
+                if (mr[i].page_size_mask & (1 << PG_LEVEL_1G)) {
-                unsigned long extra;
+                        extra = range - ((range >> PUD_SHIFT) << PUD_SHIFT);
+                        pmds += (extra + PMD_SIZE - 1) >> PMD_SHIFT;
+                } else {
+                        pmds += (range + PMD_SIZE - 1) >> PMD_SHIFT;
+                }
-                extra = end - ((end>>PMD_SHIFT) << PMD_SHIFT);
+                if (mr[i].page_size_mask & (1 << PG_LEVEL_2M)) {
+                        extra = range - ((range >> PMD_SHIFT) << PMD_SHIFT);
 #ifdef CONFIG_X86_32
-                extra += PMD_SIZE;
+                        extra += PMD_SIZE;
 #endif
-                /* The first 2/4M doesn't use large pages. */
+                        ptes += (extra + PAGE_SIZE - 1) >> PAGE_SHIFT;
-                if (mr->start < PMD_SIZE)
+                } else {
-                        extra += mr->end - mr->start;
+                        ptes += (range + PAGE_SIZE - 1) >> PAGE_SHIFT;
+                }
-                ptes = (extra + PAGE_SIZE - 1) >> PAGE_SHIFT;
+        }
-        } else
-                ptes = (end + PAGE_SIZE - 1) >> PAGE_SHIFT;
+        tables = roundup(puds * sizeof(pud_t), PAGE_SIZE);
+        tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE);
        tables += roundup(ptes * sizeof(pte_t), PAGE_SIZE);
 #ifdef CONFIG_X86_32
@@ -86,7 +90,7 @@ static void __init find_early_table_space(struct map_range *mr, unsigned long en
        pgt_buf_top = pgt_buf_start + (tables >> PAGE_SHIFT);
        printk(KERN_DEBUG "kernel direct mapping tables up to %#lx @ [mem %#010lx-%#010lx]\n",
-                end - 1, pgt_buf_start << PAGE_SHIFT,
+                mr[nr_range - 1].end - 1, pgt_buf_start << PAGE_SHIFT,
                (pgt_buf_top << PAGE_SHIFT) - 1);
 }
@@ -267,7 +271,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
         * nodes are discovered.
         */
        if (!after_bootmem)
-                find_early_table_space(&mr[0], end, use_pse, use_gbpages);
+                find_early_table_space(mr, nr_range);
        for (i = 0; i < nr_range; i++)
                ret = kernel_physical_mapping_init(mr[i].start, mr[i].end,
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 2b6b4a3c8beb..3baff255adac 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -386,7 +386,8 @@ phys_pte_init(pte_t *pte_page, unsigned long addr, unsigned long end,
                 * these mappings are more intelligent.
                 */
                if (pte_val(*pte)) {
-                        pages++;
+                        if (!after_bootmem)
+                                pages++;
                        continue;
                }
@@ -451,6 +452,8 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end,
                         * attributes.
                         */
                        if (page_size_mask & (1 << PG_LEVEL_2M)) {
+                                if (!after_bootmem)
+                                        pages++;
                                last_map_addr = next;
                                continue;
                        }
@@ -526,6 +529,8 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
                         * attributes.
                         */
                        if (page_size_mask & (1 << PG_LEVEL_1G)) {
+                                if (!after_bootmem)
+                                        pages++;
                                last_map_addr = next;
                                continue;
                        }
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 26b8a8514ee5..48768df2471a 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -55,7 +55,7 @@ u64 op_x86_get_ctrl(struct op_x86_model_spec const *model,
        val |= counter_config->extra;
        event &= model->event_mask ? model->event_mask : 0xFF;
        val |= event & 0xFF;
-        val |= (event & 0x0F00) << 24;
+        val |= (u64)(event & 0x0F00) << 24;
        return val;
 }
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index aded2a91162a..ad4439145f85 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -70,11 +70,15 @@ EXPORT_SYMBOL(efi);
 struct efi_memory_map memmap;
 bool efi_64bit;
-static bool efi_native;
 static struct efi efi_phys __initdata;
 static efi_system_table_t efi_systab __initdata;
+static inline bool efi_is_native(void)
+{
+        return IS_ENABLED(CONFIG_X86_64) == efi_64bit;
+}
 static int __init setup_noefi(char *arg)
 {
        efi_enabled = 0;
@@ -420,7 +424,7 @@ void __init efi_reserve_boot_services(void)
        }
 }
-static void __init efi_unmap_memmap(void)
+void __init efi_unmap_memmap(void)
 {
        if (memmap.map) {
                early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size);
@@ -432,7 +436,7 @@ void __init efi_free_boot_services(void)
 {
        void *p;
-        if (!efi_native)
+        if (!efi_is_native())
                return;
        for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
@@ -684,12 +688,10 @@ void __init efi_init(void)
                return;
        }
        efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab;
-        efi_native = !efi_64bit;
 #else
        efi_phys.systab = (efi_system_table_t *)
                          (boot_params.efi_info.efi_systab |
                          ((__u64)boot_params.efi_info.efi_systab_hi<<32));
-        efi_native = efi_64bit;
 #endif
        if (efi_systab_init(efi_phys.systab)) {
@@ -723,7 +725,7 @@ void __init efi_init(void)
         * that doesn't match the kernel 32/64-bit mode.
         */
-        if (!efi_native)
+        if (!efi_is_native())
                pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
        else if (efi_runtime_init()) {
                efi_enabled = 0;
@@ -735,7 +737,7 @@ void __init efi_init(void)
                return;
        }
 #ifdef CONFIG_X86_32
-        if (efi_native) {
+        if (efi_is_native()) {
                x86_platform.get_wallclock = efi_get_time;
                x86_platform.set_wallclock = efi_set_rtc_mmss;
        }
@@ -810,6 +812,16 @@ void __iomem *efi_lookup_mapped_addr(u64 phys_addr)
        return NULL;
 }
+void efi_memory_uc(u64 addr, unsigned long size)
+{
+        unsigned long page_shift = 1UL << EFI_PAGE_SHIFT;
+        u64 npages;
+        npages = round_up(size, page_shift) / page_shift;
+        memrange_efi_to_native(&addr, &npages);
+        set_memory_uc(addr, npages);
+}
 /*
 * This function will switch the EFI runtime services to virtual mode.
 * Essentially, look through the EFI memmap and map every region that
@@ -823,7 +835,7 @@ void __init efi_enter_virtual_mode(void)
        efi_memory_desc_t *md, *prev_md = NULL;
        efi_status_t status;
        unsigned long size;
-        u64 end, systab, addr, npages, end_pfn;
+        u64 end, systab, end_pfn;
        void *p, *va, *new_memmap = NULL;
        int count = 0;
@@ -834,7 +846,7 @@ void __init efi_enter_virtual_mode(void)
         * non-native EFI
         */
-        if (!efi_native) {
+        if (!efi_is_native()) {
                efi_unmap_memmap();
                return;
        }
@@ -879,10 +891,14 @@ void __init efi_enter_virtual_mode(void)
                end_pfn = PFN_UP(end);
                if (end_pfn <= max_low_pfn_mapped
                    || (end_pfn > (1UL << (32 - PAGE_SHIFT))
-                        && end_pfn <= max_pfn_mapped))
+                        && end_pfn <= max_pfn_mapped)) {
                        va = __va(md->phys_addr);
-                else
-                        va = efi_ioremap(md->phys_addr, size, md->type);
+                        if (!(md->attribute & EFI_MEMORY_WB))
+                                efi_memory_uc((u64)(unsigned long)va, size);
+                } else
+                        va = efi_ioremap(md->phys_addr, size,
+                                         md->type, md->attribute);
                md->virt_addr = (u64) (unsigned long) va;
@@ -892,13 +908,6 @@ void __init efi_enter_virtual_mode(void)
                        continue;
                }
-                if (!(md->attribute & EFI_MEMORY_WB)) {
-                        addr = md->virt_addr;
-                        npages = md->num_pages;
-                        memrange_efi_to_native(&addr, &npages);
-                        set_memory_uc(addr, npages);
-                }
                systab = (u64) (unsigned long) efi_phys.systab;
                if (md->phys_addr <= systab && systab < end) {
                        systab += md->virt_addr - md->phys_addr;
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index ac3aa54e2654..95fd505dfeb6 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -82,7 +82,7 @@ void __init efi_call_phys_epilog(void)
 }
 void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size,
-                                 u32 type)
+                                 u32 type, u64 attribute)
 {
        unsigned long last_map_pfn;
@@ -92,8 +92,11 @@ void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size,
        last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size);
        if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) {
                unsigned long top = last_map_pfn << PAGE_SHIFT;
-                efi_ioremap(top, size - (top - phys_addr), type);
+                efi_ioremap(top, size - (top - phys_addr), type, attribute);
        }
+        if (!(attribute & EFI_MEMORY_WB))
+                efi_memory_uc((u64)(unsigned long)__va(phys_addr), size);
        return (void __iomem *)__va(phys_addr);
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index e3497f240eab..586d83812b67 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -81,8 +81,6 @@
 #include "smp.h"
 #include "multicalls.h"
-#include <xen/events.h>
 EXPORT_SYMBOL_GPL(hypercall_page);
 DEFINE_PER_CPU(struct vcpu_info *, xen_vcpu);
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 6226c99729b9..dcf5f2dd91ec 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1288,6 +1288,25 @@ unsigned long xen_read_cr2_direct(void)
        return this_cpu_read(xen_vcpu_info.arch.cr2);
 }
+void xen_flush_tlb_all(void)
+{
+        struct mmuext_op *op;
+        struct multicall_space mcs;
+        trace_xen_mmu_flush_tlb_all(0);
+        preempt_disable();
+        mcs = xen_mc_entry(sizeof(*op));
+        op = mcs.args;
+        op->cmd = MMUEXT_TLB_FLUSH_ALL;
+        MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF);
+        xen_mc_issue(PARAVIRT_LAZY_MMU);
+        preempt_enable();
+}
 static void xen_flush_tlb(void)
 {
        struct mmuext_op *op;
@@ -2518,7 +2537,7 @@ int xen_remap_domain_mfn_range(struct vm_area_struct *vma,
        err = 0;
 out:
-        flush_tlb_all();
+        xen_flush_tlb_all();
        return err;
 }
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index cdcb48adee4c..0d1f36a22c98 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -13,6 +13,8 @@ config XTENSA
        select GENERIC_CPU_DEVICES
        select MODULES_USE_ELF_RELA
        select GENERIC_PCI_IOMAP
+        select GENERIC_KERNEL_THREAD
+        select GENERIC_KERNEL_EXECVE
        select ARCH_WANT_OPTIONAL_GPIOLIB
        help
          Xtensa processors are 32-bit RISC machines designed by Tensilica
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index e6be5b9091c2..700c2e6f2d25 100644
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -62,6 +62,10 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
 static inline void iounmap(volatile void __iomem *addr)
 {
 }
+#define virt_to_bus     virt_to_phys
+#define bus_to_virt     phys_to_virt
 #endif /* CONFIG_MMU */
 /*
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
index 5c371d8d4528..2d630e7399ca 100644
--- a/arch/xtensa/include/asm/processor.h
+++ b/arch/xtensa/include/asm/processor.h
@@ -152,6 +152,7 @@ struct thread_struct {
 /* Clearing a0 terminates the backtrace. */
 #define start_thread(regs, new_pc, new_sp) \
+        memset(regs, 0, sizeof(*regs)); \
        regs->pc = new_pc; \
        regs->ps = USER_PS_VALUE; \
        regs->areg[1] = new_sp; \
@@ -168,9 +169,6 @@ struct mm_struct;
 /* Free all resources held by a thread. */
 #define release_thread(thread) do { } while(0)
-/* Create a kernel thread without removing it from tasklists */
-extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
 /* Copy and release all segment info associated with a VM */
 #define copy_segments(p, mm)    do { } while(0)
 #define release_segments(mm)    do { } while(0)
diff --git a/arch/xtensa/include/asm/syscall.h b/arch/xtensa/include/asm/syscall.h
index c1dacca312f3..124aeee0d381 100644
--- a/arch/xtensa/include/asm/syscall.h
+++ b/arch/xtensa/include/asm/syscall.h
@@ -10,7 +10,7 @@
 struct pt_regs;
 struct sigaction;
-asmlinkage long xtensa_execve(char*, char**, char**, struct pt_regs*);
+asmlinkage long sys_execve(char*, char**, char**, struct pt_regs*);
 asmlinkage long xtensa_clone(unsigned long, unsigned long, struct pt_regs*);
 asmlinkage long xtensa_ptrace(long, long, long, long);
 asmlinkage long xtensa_sigreturn(struct pt_regs*);
diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index 9ef1c31d2c83..f4e6eaa40d1c 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -1,16 +1,9 @@
-/*
+#ifndef _XTENSA_UNISTD_H
- * include/asm-xtensa/unistd.h
+#define _XTENSA_UNISTD_H
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- */
+#define __ARCH_WANT_SYS_EXECVE
 #include <uapi/asm/unistd.h>
 /*
 * "Conditional" syscalls
 *
@@ -37,3 +30,5 @@
 #define __IGNORE_mmap                           /* use mmap2 */
 #define __IGNORE_vfork                          /* use clone */
 #define __IGNORE_fadvise64                      /* use fadvise64_64 */
+#endif /* _XTENSA_UNISTD_H */
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index 479abaea5aae..9f36d0e3e0ac 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -1,14 +1,4 @@
-/*
+#if !defined(_UAPI_XTENSA_UNISTD_H) || defined(__SYSCALL)
- * include/asm-xtensa/unistd.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2012 Tensilica Inc.
- */
-#ifndef _UAPI_XTENSA_UNISTD_H
 #define _UAPI_XTENSA_UNISTD_H
 #ifndef __SYSCALL
@@ -272,7 +262,7 @@ __SYSCALL(115, sys_sendmmsg, 4)
 #define __NR_clone                              116
 __SYSCALL(116, xtensa_clone, 5)
 #define __NR_execve                             117
-__SYSCALL(117, xtensa_execve, 3)
+__SYSCALL(117, sys_execve, 3)
 #define __NR_exit                               118
 __SYSCALL(118, sys_exit, 1)
 #define __NR_exit_group                         119
@@ -759,4 +749,6 @@ __SYSCALL(331, sys_kcmp, 5)
 #define SYS_XTENSA_COUNT                  5     /* count */
+#undef __SYSCALL
 #endif /* _UAPI_XTENSA_UNISTD_H */
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 18453067c258..90bfc1dbc13d 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -1833,50 +1833,6 @@ ENTRY(system_call)
 /*
- * Create a kernel thread
- *
- * int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
- * a2                    a2                 a3             a4
- */
-ENTRY(kernel_thread)
-        entry   a1, 16
-        mov     a5, a2                  # preserve fn over syscall
-        mov     a7, a3                  # preserve args over syscall
-        movi    a3, _CLONE_VM | _CLONE_UNTRACED
-        movi    a2, __NR_clone
-        or      a6, a4, a3              # arg0: flags
-        mov     a3, a1                  # arg1: sp
-        syscall
-        beq     a3, a1, 1f              # branch if parent
-        mov     a6, a7                  # args
-        callx4  a5                      # fn(args)
-        movi    a2, __NR_exit
-        syscall                         # return value of fn(args) still in a6
-1:      retw
-/*
- * Do a system call from kernel instead of calling sys_execve, so we end up
- * with proper pt_regs.
- *
- * int kernel_execve(const char *fname, char *const argv[], charg *const envp[])
- * a2                        a2               a3                  a4
- */
-ENTRY(kernel_execve)
-        entry   a1, 16
-        mov     a6, a2                  # arg0 is in a6
-        movi    a2, __NR_execve
-        syscall
-        retw
-/*
 * Task switch.
 *
 * struct task*  _switch_to (struct task* prev, struct task* next)
@@ -1958,3 +1914,16 @@ ENTRY(ret_from_fork)
        j       common_exception_return
+/*
+ * Kernel thread creation helper
+ * On entry, set up by copy_thread: a2 = thread_fn, a3 = thread_fn arg
+ *           left from _switch_to: a6 = prev
+ */
+ENTRY(ret_from_kernel_thread)
+        call4   schedule_tail
+        mov     a6, a3
+        callx4  a2
+        j       common_exception_return
+ENDPROC(ret_from_kernel_thread)
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 1908f6642d31..09ae7bfab9a7 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -45,6 +45,7 @@
 #include <asm/regs.h>
 extern void ret_from_fork(void);
+extern void ret_from_kernel_thread(void);
 struct task_struct *current_set[NR_CPUS] = {&init_task, };
@@ -158,18 +159,30 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
 /*
 * Copy thread.
 *
+ * There are two modes in which this function is called:
+ * 1) Userspace thread creation,
+ *    regs != NULL, usp_thread_fn is userspace stack pointer.
+ *    It is expected to copy parent regs (in case CLONE_VM is not set
+ *    in the clone_flags) and set up passed usp in the childregs.
+ * 2) Kernel thread creation,
+ *    regs == NULL, usp_thread_fn is the function to run in the new thread
+ *    and thread_fn_arg is its parameter.
+ *    childregs are not used for the kernel threads.
+ *
 * The stack layout for the new thread looks like this:
 *
- *      +------------------------+ <- sp in childregs (= tos)
+ *      +------------------------+
 *      |       childregs        |
 *      +------------------------+ <- thread.sp = sp in dummy-frame
 *      |      dummy-frame       |    (saved in dummy-frame spill-area)
 *      +------------------------+
 *
- * We create a dummy frame to return to ret_from_fork:
+ * We create a dummy frame to return to either ret_from_fork or
- *   a0 points to ret_from_fork (simulating a call4)
+ *   ret_from_kernel_thread:
+ *   a0 points to ret_from_fork/ret_from_kernel_thread (simulating a call4)
 *   sp points to itself (thread.sp)
- *   a2, a3 are unused.
+ *   a2, a3 are unused for userspace threads,
+ *   a2 points to thread_fn, a3 holds thread_fn arg for kernel threads.
 *
 * Note: This is a pristine frame, so we don't need any spill region on top of
 *       childregs.
@@ -185,43 +198,63 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
 * involved.  Much simpler to just not copy those live frames across.
 */
-int copy_thread(unsigned long clone_flags, unsigned long usp,
+int copy_thread(unsigned long clone_flags, unsigned long usp_thread_fn,
-                unsigned long unused,
+                unsigned long thread_fn_arg,
-                struct task_struct * p, struct pt_regs * regs)
+                struct task_struct *p, struct pt_regs *unused)
 {
-        struct pt_regs *childregs;
+        struct pt_regs *childregs = task_pt_regs(p);
-        unsigned long tos;
-        int user_mode = user_mode(regs);
 #if (XTENSA_HAVE_COPROCESSORS || XTENSA_HAVE_IO_PORTS)
        struct thread_info *ti;
 #endif
-        /* Set up new TSS. */
-        tos = (unsigned long)task_stack_page(p) + THREAD_SIZE;
-        if (user_mode)
-                childregs = (struct pt_regs*)(tos - PT_USER_SIZE);
-        else
-                childregs = (struct pt_regs*)tos - 1;
-        /* This does not copy all the regs.  In a bout of brilliance or madness,
-           ARs beyond a0-a15 exist past the end of the struct. */
-        *childregs = *regs;
        /* Create a call4 dummy-frame: a0 = 0, a1 = childregs. */
        *((int*)childregs - 3) = (unsigned long)childregs;
        *((int*)childregs - 4) = 0;
-        childregs->areg[2] = 0;
-        p->set_child_tid = p->clear_child_tid = NULL;
-        p->thread.ra = MAKE_RA_FOR_CALL((unsigned long)ret_from_fork, 0x1);
        p->thread.sp = (unsigned long)childregs;
-        if (user_mode(regs)) {
+        if (!(p->flags & PF_KTHREAD)) {
+                struct pt_regs *regs = current_pt_regs();
+                unsigned long usp = usp_thread_fn ?
+                        usp_thread_fn : regs->areg[1];
+                p->thread.ra = MAKE_RA_FOR_CALL(
+                                (unsigned long)ret_from_fork, 0x1);
+                /* This does not copy all the regs.
+                 * In a bout of brilliance or madness,
+                 * ARs beyond a0-a15 exist past the end of the struct.
+                 */
+                *childregs = *regs;
                childregs->areg[1] = usp;
+                childregs->areg[2] = 0;
+                /* When sharing memory with the parent thread, the child
+                   usually starts on a pristine stack, so we have to reset
+                   windowbase, windowstart and wmask.
+                   (Note that such a new thread is required to always create
+                   an initial call4 frame)
+                   The exception is vfork, where the new thread continues to
+                   run on the parent's stack until it calls execve. This could
+                   be a call8 or call12, which requires a legal stack frame
+                   of the previous caller for the overflow handlers to work.
+                   (Note that it's always legal to overflow live registers).
+                   In this case, ensure to spill at least the stack pointer
+                   of that frame. */
                if (clone_flags & CLONE_VM) {
-                        childregs->wmask = 1;   /* can't share live windows */
+                        /* check that caller window is live and same stack */
+                        int len = childregs->wmask & ~0xf;
+                        if (regs->areg[1] == usp && len != 0) {
+                                int callinc = (regs->areg[0] >> 30) & 3;
+                                int caller_ars = XCHAL_NUM_AREGS - callinc * 4;
+                                put_user(regs->areg[caller_ars+1],
+                                         (unsigned __user*)(usp - 12));
+                        }
+                        childregs->wmask = 1;
+                        childregs->windowstart = 1;
+                        childregs->windowbase = 0;
                } else {
                        int len = childregs->wmask & ~0xf;
                        memcpy(&childregs->areg[XCHAL_NUM_AREGS - len/4],
@@ -230,11 +263,19 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 // FIXME: we need to set THREADPTR in thread_info...
                if (clone_flags & CLONE_SETTLS)
                        childregs->areg[2] = childregs->areg[6];
        } else {
-                /* In kernel space, we start a new thread with a new stack. */
+                p->thread.ra = MAKE_RA_FOR_CALL(
-                childregs->wmask = 1;
+                                (unsigned long)ret_from_kernel_thread, 1);
-                childregs->areg[1] = tos;
+                /* pass parameters to ret_from_kernel_thread:
+                 * a2 = thread_fn, a3 = thread_fn arg
+                 */
+                *((int *)childregs - 1) = thread_fn_arg;
+                *((int *)childregs - 2) = usp_thread_fn;
+                /* Childregs are only used when we're going to userspace
+                 * in which case start_thread will set them up.
+                 */
        }
 #if (XTENSA_HAVE_COPROCESSORS || XTENSA_HAVE_IO_PORTS)
@@ -330,32 +371,5 @@ long xtensa_clone(unsigned long clone_flags, unsigned long newsp,
                  void __user *child_tid, long a5,
                  struct pt_regs *regs)
 {
-        if (!newsp)
-                newsp = regs->areg[1];
        return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
 }
-/*
- * xtensa_execve() executes a new program.
- */
-asmlinkage
-long xtensa_execve(const char __user *name,
-                   const char __user *const __user *argv,
-                   const char __user *const __user *envp,
-                   long a3, long a4, long a5,
-                   struct pt_regs *regs)
-{
-        long error;
-        struct filename *filename;
-        filename = getname(name);
-        error = PTR_ERR(filename);
-        if (IS_ERR(filename))
-                goto out;
-        error = do_execve(filename->name, argv, envp, regs);
-        putname(filename);
-out:
-        return error;
-}
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
index a5c01e74d5d5..5702065f472a 100644
--- a/arch/xtensa/kernel/syscall.c
+++ b/arch/xtensa/kernel/syscall.c
@@ -32,10 +32,8 @@ typedef void (*syscall_t)(void);
 syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= {
        [0 ... __NR_syscall_count - 1] = (syscall_t)&sys_ni_syscall,
-#undef __SYSCALL
 #define __SYSCALL(nr,symbol,nargs) [ nr ] = (syscall_t)symbol,
-#undef  __KERNEL_SYSCALLS__
+#include <uapi/asm/unistd.h>
-#include <asm/unistd.h>
 };
 asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)
@@ -49,7 +47,8 @@ asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)
        return (long)ret;
 }
-asmlinkage long xtensa_fadvise64_64(int fd, int advice, unsigned long long offset, unsigned long long len)
+asmlinkage long xtensa_fadvise64_64(int fd, int advice,
+                unsigned long long offset, unsigned long long len)
 {
        return sys_fadvise64_64(fd, offset, len, advice);
 }
diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c
index a8b9f1fd1e17..afe058b24e6e 100644
--- a/arch/xtensa/kernel/xtensa_ksyms.c
+++ b/arch/xtensa/kernel/xtensa_ksyms.c
@@ -43,7 +43,6 @@ EXPORT_SYMBOL(__strncpy_user);
 EXPORT_SYMBOL(clear_page);
 EXPORT_SYMBOL(copy_page);
-EXPORT_SYMBOL(kernel_thread);
 EXPORT_SYMBOL(empty_zero_page);
 /*