Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Conflicts:
	drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
	net/ipv6/ip6_tunnel.c
	net/ipv6/ip6_vti.c

ipv6 tunnel statistic bug fixes conflicting with consolidation into
generic sw per-cpu net stats.

qlogic conflict between queue counting bug fix and the addition
of multiple MAC address support.

Signed-off-by: David S. Miller <davem@davemloft.net>

40 files changed, 305 insertions, 163 deletions

diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h
index 68125dd766c6..39e58d1cdf90 100644
--- a/arch/arc/include/uapi/asm/unistd.h
+++ b/arch/arc/include/uapi/asm/unistd.h
@@ -8,7 +8,11 @@
 
 /******** no-legacy-syscalls-ABI *******/
 
-#ifndef _UAPI_ASM_ARC_UNISTD_H
+/*
+ * Non-typical guard macro to enable inclusion twice in ARCH sys.c
+ * That is how the Generic syscall wrapper generator works
+ */
+#if !defined(_UAPI_ASM_ARC_UNISTD_H) || defined(__SYSCALL)
 #define _UAPI_ASM_ARC_UNISTD_H
 
 #define __ARCH_WANT_SYS_EXECVE
@@ -36,4 +40,6 @@ __SYSCALL(__NR_arc_gettls, sys_arc_gettls)
 #define __NR_sysfs              (__NR_arch_specific_syscall + 3)
 __SYSCALL(__NR_sysfs, sys_sysfs)
 
+#undef __SYSCALL
+
 #endif
diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index ee845fad939b..9987dd0e9c59 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -87,9 +87,9 @@
                 interrupts = <1 9 0xf04>;
         };
 
-        gpio0: gpio@ffc40000 {
+        gpio0: gpio@e6050000 {
                 compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
-                reg = <0 0xffc40000 0 0x2c>;
+                reg = <0 0xe6050000 0 0x50>;
                 interrupt-parent = <&gic>;
                 interrupts = <0 4 0x4>;
                 #gpio-cells = <2>;
@@ -99,9 +99,9 @@
                 interrupt-controller;
         };
 
-        gpio1: gpio@ffc41000 {
+        gpio1: gpio@e6051000 {
                 compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
-                reg = <0 0xffc41000 0 0x2c>;
+                reg = <0 0xe6051000 0 0x50>;
                 interrupt-parent = <&gic>;
                 interrupts = <0 5 0x4>;
                 #gpio-cells = <2>;
@@ -111,9 +111,9 @@
                 interrupt-controller;
         };
 
-        gpio2: gpio@ffc42000 {
+        gpio2: gpio@e6052000 {
                 compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
-                reg = <0 0xffc42000 0 0x2c>;
+                reg = <0 0xe6052000 0 0x50>;
                 interrupt-parent = <&gic>;
                 interrupts = <0 6 0x4>;
                 #gpio-cells = <2>;
@@ -123,9 +123,9 @@
                 interrupt-controller;
         };
 
-        gpio3: gpio@ffc43000 {
+        gpio3: gpio@e6053000 {
                 compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
-                reg = <0 0xffc43000 0 0x2c>;
+                reg = <0 0xe6053000 0 0x50>;
                 interrupt-parent = <&gic>;
                 interrupts = <0 7 0x4>;
                 #gpio-cells = <2>;
@@ -135,9 +135,9 @@
                 interrupt-controller;
         };
 
-        gpio4: gpio@ffc44000 {
+        gpio4: gpio@e6054000 {
                 compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
-                reg = <0 0xffc44000 0 0x2c>;
+                reg = <0 0xe6054000 0 0x50>;
                 interrupt-parent = <&gic>;
                 interrupts = <0 8 0x4>;
                 #gpio-cells = <2>;
@@ -147,9 +147,9 @@
                 interrupt-controller;
         };
 
-        gpio5: gpio@ffc45000 {
+        gpio5: gpio@e6055000 {
                 compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
-                reg = <0 0xffc45000 0 0x2c>;
+                reg = <0 0xe6055000 0 0x50>;
                 interrupt-parent = <&gic>;
                 interrupts = <0 9 0x4>;
                 #gpio-cells = <2>;
@@ -241,7 +241,7 @@
 
         sdhi0: sdhi@ee100000 {
                 compatible = "renesas,sdhi-r8a7790";
-                reg = <0 0xee100000 0 0x100>;
+                reg = <0 0xee100000 0 0x200>;
                 interrupt-parent = <&gic>;
                 interrupts = <0 165 4>;
                 cap-sd-highspeed;
@@ -250,7 +250,7 @@
 
         sdhi1: sdhi@ee120000 {
                 compatible = "renesas,sdhi-r8a7790";
-                reg = <0 0xee120000 0 0x100>;
+                reg = <0 0xee120000 0 0x200>;
                 interrupt-parent = <&gic>;
                 interrupts = <0 166 4>;
                 cap-sd-highspeed;
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index 4ec8d82b0492..44a59c3abfb0 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -242,12 +242,18 @@ static void __init ldp_display_init(void)
 
 static int ldp_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio)
 {
+        int res;
+
         /* LCD enable GPIO */
         ldp_lcd_pdata.enable_gpio = gpio + 7;
 
         /* Backlight enable GPIO */
         ldp_lcd_pdata.backlight_gpio = gpio + 15;
 
+        res = platform_device_register(&ldp_lcd_device);
+        if (res)
+                pr_err("Unable to register LCD: %d\n", res);
+
         return 0;
 }
 
@@ -346,7 +352,6 @@ static struct omap2_hsmmc_info mmc[] __initdata = {
 
 static struct platform_device *ldp_devices[] __initdata = {
         &ldp_gpio_keys_device,
-        &ldp_lcd_device,
 };
 
 #ifdef CONFIG_OMAP_MUX
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 58347bb874a0..4cf165502b35 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -101,13 +101,51 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initconst = {
         { "dss_hdmi", "omapdss_hdmi", -1 },
 };
 
+static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
+{
+        u32 enable_mask, enable_shift;
+        u32 pipd_mask, pipd_shift;
+        u32 reg;
+
+        if (dsi_id == 0) {
+                enable_mask = OMAP4_DSI1_LANEENABLE_MASK;
+                enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT;
+                pipd_mask = OMAP4_DSI1_PIPD_MASK;
+                pipd_shift = OMAP4_DSI1_PIPD_SHIFT;
+        } else if (dsi_id == 1) {
+                enable_mask = OMAP4_DSI2_LANEENABLE_MASK;
+                enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT;
+                pipd_mask = OMAP4_DSI2_PIPD_MASK;
+                pipd_shift = OMAP4_DSI2_PIPD_SHIFT;
+        } else {
+                return -ENODEV;
+        }
+
+        reg = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
+
+        reg &= ~enable_mask;
+        reg &= ~pipd_mask;
+
+        reg |= (lanes << enable_shift) & enable_mask;
+        reg |= (lanes << pipd_shift) & pipd_mask;
+
+        omap4_ctrl_pad_writel(reg, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
+
+        return 0;
+}
+
 static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask)
 {
+        if (cpu_is_omap44xx())
+                return omap4_dsi_mux_pads(dsi_id, lane_mask);
+
         return 0;
 }
 
 static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask)
 {
+        if (cpu_is_omap44xx())
+                omap4_dsi_mux_pads(dsi_id, 0);
 }
 
 static int omap_dss_set_min_bus_tput(struct device *dev, unsigned long tput)
diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
index 56cebb05509e..d23c77fadb31 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
@@ -796,7 +796,7 @@ struct omap_hwmod omap2xxx_counter_32k_hwmod = {
 
 /* gpmc */
 static struct omap_hwmod_irq_info omap2xxx_gpmc_irqs[] = {
-        { .irq = 20 },
+        { .irq = 20 + OMAP_INTC_START, },
         { .irq = -1 }
 };
 
@@ -841,7 +841,7 @@ static struct omap_hwmod_class omap2_rng_hwmod_class = {
 };
 
 static struct omap_hwmod_irq_info omap2_rng_mpu_irqs[] = {
-        { .irq = 52 },
+        { .irq = 52 + OMAP_INTC_START, },
         { .irq = -1 }
 };
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index d33742908f97..4c3b1e6df508 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -2165,7 +2165,7 @@ static struct omap_hwmod_class omap3xxx_gpmc_hwmod_class = {
 };
 
 static struct omap_hwmod_irq_info omap3xxx_gpmc_irqs[] = {
-        { .irq = 20 },
+        { .irq = 20 + OMAP_INTC_START, },
         { .irq = -1 }
 };
 
@@ -2999,7 +2999,7 @@ static struct omap_mmu_dev_attr mmu_isp_dev_attr = {
 
 static struct omap_hwmod omap3xxx_mmu_isp_hwmod;
 static struct omap_hwmod_irq_info omap3xxx_mmu_isp_irqs[] = {
-        { .irq = 24 },
+        { .irq = 24 + OMAP_INTC_START, },
         { .irq = -1 }
 };
 
@@ -3041,7 +3041,7 @@ static struct omap_mmu_dev_attr mmu_iva_dev_attr = {
 
 static struct omap_hwmod omap3xxx_mmu_iva_hwmod;
 static struct omap_hwmod_irq_info omap3xxx_mmu_iva_irqs[] = {
-        { .irq = 28 },
+        { .irq = 28 + OMAP_INTC_START, },
         { .irq = -1 }
 };
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index db32d5380b11..18f333c440db 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -1637,7 +1637,7 @@ static struct omap_hwmod dra7xx_uart1_hwmod = {
         .class          = &dra7xx_uart_hwmod_class,
         .clkdm_name     = "l4per_clkdm",
         .main_clk       = "uart1_gfclk_mux",
-        .flags          = HWMOD_SWSUP_SIDLE_ACT,
+        .flags          = HWMOD_SWSUP_SIDLE_ACT | DEBUG_OMAP2UART1_FLAGS,
         .prcm = {
                 .omap4 = {
                         .clkctrl_offs = DRA7XX_CM_L4PER_UART1_CLKCTRL_OFFSET,
diff --git a/arch/arm/mach-pxa/include/mach/lubbock.h b/arch/arm/mach-pxa/include/mach/lubbock.h
index 2a086e8373eb..958cd6af9384 100644
--- a/arch/arm/mach-pxa/include/mach/lubbock.h
+++ b/arch/arm/mach-pxa/include/mach/lubbock.h
@@ -10,6 +10,8 @@
  * published by the Free Software Foundation.
  */
 
+#include <mach/irqs.h>
+
 #define LUBBOCK_ETH_PHYS        PXA_CS3_PHYS
 
 #define LUBBOCK_FPGA_PHYS       PXA_CS2_PHYS
diff --git a/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c b/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c
index 7eb9a10fc1af..2fddf38192df 100644
--- a/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c
+++ b/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c
@@ -8,8 +8,6 @@
  * published by the Free Software Foundation.
 */
 
-#include <linux/clk-provider.h>
-#include <linux/irqchip.h>
 #include <linux/of_platform.h>
 
 #include <asm/mach/arch.h>
@@ -48,15 +46,9 @@ static void __init s3c64xx_dt_map_io(void)
                 panic("SoC is not S3C64xx!");
 }
 
-static void __init s3c64xx_dt_init_irq(void)
-{
-        of_clk_init(NULL);
-        samsung_wdt_reset_of_init();
-        irqchip_init();
-};
-
 static void __init s3c64xx_dt_init_machine(void)
 {
+        samsung_wdt_reset_of_init();
         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
@@ -79,7 +71,6 @@ DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)")
         /* Maintainer: Tomasz Figa <tomasz.figa@gmail.com> */
         .dt_compat      = s3c64xx_dt_compat,
         .map_io         = s3c64xx_dt_map_io,
-        .init_irq       = s3c64xx_dt_init_irq,
         .init_machine   = s3c64xx_dt_init_machine,
         .restart        = s3c64xx_dt_restart,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
index 958e3cbf0ac2..c18689123023 100644
--- a/arch/arm/mach-shmobile/board-armadillo800eva.c
+++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
@@ -614,6 +614,11 @@ static struct regulator_consumer_supply fixed3v3_power_consumers[] = {
         REGULATOR_SUPPLY("vqmmc", "sh_mmcif"),
 };
 
+/* Fixed 3.3V regulator used by LCD backlight */
+static struct regulator_consumer_supply fixed5v0_power_consumers[] = {
+        REGULATOR_SUPPLY("power", "pwm-backlight.0"),
+};
+
 /* Fixed 3.3V regulator to be used by SDHI0 */
 static struct regulator_consumer_supply vcc_sdhi0_consumers[] = {
         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
@@ -1196,6 +1201,8 @@ static void __init eva_init(void)
 
         regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
                                      ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
+        regulator_register_always_on(3, "fixed-5.0V", fixed5v0_power_consumers,
+                                     ARRAY_SIZE(fixed5v0_power_consumers), 5000000);
 
         pinctrl_register_mappings(eva_pinctrl_map, ARRAY_SIZE(eva_pinctrl_map));
         pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c
index 38611526fe9a..3c4995aebd22 100644
--- a/arch/arm/mach-shmobile/board-bockw.c
+++ b/arch/arm/mach-shmobile/board-bockw.c
@@ -679,7 +679,7 @@ static void __init bockw_init(void)
                         .id             = i,
                         .data           = &rsnd_card_info[i],
                         .size_data      = sizeof(struct asoc_simple_card_info),
-                        .dma_mask       = ~0,
+                        .dma_mask       = DMA_BIT_MASK(32),
                 };
 
                 platform_device_register_full(&cardinfo);
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index a8d3ce646fb9..e0406fd37390 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -245,7 +245,9 @@ static void __init lager_init(void)
 {
         lager_add_standard_devices();
 
-        phy_register_fixup_for_id("r8a7790-ether-ff:01", lager_ksz8041_fixup);
+        if (IS_ENABLED(CONFIG_PHYLIB))
+                phy_register_fixup_for_id("r8a7790-ether-ff:01",
+                                          lager_ksz8041_fixup);
 }
 
 static const char * const lager_boards_compat_dt[] __initconst = {
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index 83e4f959ee47..85501238b425 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -96,7 +96,7 @@ static int remap_pte_fn(pte_t *ptep, pgtable_t token, unsigned long addr,
         struct remap_data *info = data;
         struct page *page = info->pages[info->index++];
         unsigned long pfn = page_to_pfn(page);
-        pte_t pte = pfn_pte(pfn, info->prot);
+        pte_t pte = pte_mkspecial(pfn_pte(pfn, info->prot));
 
         if (map_foreign_page(pfn, info->fgmfn, info->domid))
                 return -EFAULT;
@@ -224,10 +224,10 @@ static int __init xen_guest_init(void)
         }
         if (of_address_to_resource(node, GRANT_TABLE_PHYSADDR, &res))
                 return 0;
-        xen_hvm_resume_frames = res.start >> PAGE_SHIFT;
+        xen_hvm_resume_frames = res.start;
         xen_events_irq = irq_of_parse_and_map(node, 0);
         pr_info("Xen %s support found, events_irq=%d gnttab_frame_pfn=%lx\n",
-                        version, xen_events_irq, xen_hvm_resume_frames);
+                        version, xen_events_irq, (xen_hvm_resume_frames >> PAGE_SHIFT));
         xen_domain_type = XEN_HVM_DOMAIN;
 
         xen_setup_features();
diff --git a/arch/arm64/include/asm/xen/page-coherent.h b/arch/arm64/include/asm/xen/page-coherent.h
index 2820f1a6eebe..dde3fc9c49f0 100644
--- a/arch/arm64/include/asm/xen/page-coherent.h
+++ b/arch/arm64/include/asm/xen/page-coherent.h
@@ -23,25 +23,21 @@ static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
              unsigned long offset, size_t size, enum dma_data_direction dir,
              struct dma_attrs *attrs)
 {
-        __generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
 }
 
 static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
                 size_t size, enum dma_data_direction dir,
                 struct dma_attrs *attrs)
 {
-        __generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs);
 }
 
 static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
                 dma_addr_t handle, size_t size, enum dma_data_direction dir)
 {
-        __generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir);
 }
 
 static inline void xen_dma_sync_single_for_device(struct device *hwdev,
                 dma_addr_t handle, size_t size, enum dma_data_direction dir)
 {
-        __generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir);
 }
 #endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 6777a2192b83..6a8928bba03c 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -214,31 +214,29 @@ static int ptrace_hbp_fill_attr_ctrl(unsigned int note_type,
 {
         int err, len, type, disabled = !ctrl.enabled;
 
-        if (disabled) {
-                len = 0;
-                type = HW_BREAKPOINT_EMPTY;
-        } else {
-                err = arch_bp_generic_fields(ctrl, &len, &type);
-                if (err)
-                        return err;
-
-                switch (note_type) {
-                case NT_ARM_HW_BREAK:
-                        if ((type & HW_BREAKPOINT_X) != type)
-                                return -EINVAL;
-                        break;
-                case NT_ARM_HW_WATCH:
-                        if ((type & HW_BREAKPOINT_RW) != type)
-                                return -EINVAL;
-                        break;
-                default:
+        attr->disabled = disabled;
+        if (disabled)
+                return 0;
+
+        err = arch_bp_generic_fields(ctrl, &len, &type);
+        if (err)
+                return err;
+
+        switch (note_type) {
+        case NT_ARM_HW_BREAK:
+                if ((type & HW_BREAKPOINT_X) != type)
                         return -EINVAL;
-                }
+                break;
+        case NT_ARM_HW_WATCH:
+                if ((type & HW_BREAKPOINT_RW) != type)
+                        return -EINVAL;
+                break;
+        default:
+                return -EINVAL;
         }
 
         attr->bp_len    = len;
         attr->bp_type   = type;
-        attr->disabled  = disabled;
 
         return 0;
 }
diff --git a/arch/powerpc/boot/dts/mpc5125twr.dts b/arch/powerpc/boot/dts/mpc5125twr.dts
index 4177b62240c2..a618dfc13e4c 100644
--- a/arch/powerpc/boot/dts/mpc5125twr.dts
+++ b/arch/powerpc/boot/dts/mpc5125twr.dts
@@ -58,7 +58,6 @@
                 compatible = "fsl,mpc5121-immr";
                 #address-cells = <1>;
                 #size-cells = <1>;
-                #interrupt-cells = <2>;
                 ranges = <0x0 0x80000000 0x400000>;
                 reg = <0x80000000 0x400000>;
                 bus-frequency = <66000000>;     // 66 MHz ips bus
@@ -189,6 +188,10 @@
                         reg = <0xA000 0x1000>;
                 };
 
+                // disable USB1 port
+                // TODO:
+                // correct pinmux config and fix USB3320 ulpi dependency
+                // before re-enabling it
                 usb@3000 {
                         compatible = "fsl,mpc5121-usb2-dr";
                         reg = <0x3000 0x400>;
@@ -197,6 +200,7 @@
                         interrupts = <43 0x8>;
                         dr_mode = "host";
                         phy_type = "ulpi";
+                        status = "disabled";
                 };
 
                 // 5125 PSCs are not 52xx or 5121 PSC compatible
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 894662a5d4d5..243ce69ad685 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -284,7 +284,7 @@ do_kvm_##n:								\
         subi    r1,r1,INT_FRAME_SIZE;   /* alloc frame on kernel stack  */ \
         beq-    1f;                                                        \
         ld      r1,PACAKSAVE(r13);      /* kernel stack to use          */ \
-1:      cmpdi   cr1,r1,0;               /* check if r1 is in userspace  */ \
+1:      cmpdi   cr1,r1,-INT_FRAME_SIZE; /* check if r1 is in userspace  */ \
         blt+    cr1,3f;                 /* abort if it is               */ \
         li      r1,(n);                 /* will be reloaded later       */ \
         sth     r1,PACA_TRAP_SAVE(r13);                                    \
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 4a594b76674d..bc23b1ba7980 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -192,6 +192,10 @@ extern void kvmppc_load_up_vsx(void);
 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
+extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
+                                 struct kvm_vcpu *vcpu);
+extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
+                                   struct kvmppc_book3s_shadow_vcpu *svcpu);
 
 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
 {
diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
index 0bd9348a4db9..192917d2239c 100644
--- a/arch/powerpc/include/asm/kvm_book3s_asm.h
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -79,6 +79,7 @@ struct kvmppc_host_state {
         ulong vmhandler;
         ulong scratch0;
         ulong scratch1;
+        ulong scratch2;
         u8 in_guest;
         u8 restore_hid5;
         u8 napping;
@@ -106,6 +107,7 @@ struct kvmppc_host_state {
 };
 
 struct kvmppc_book3s_shadow_vcpu {
+        bool in_use;
         ulong gpr[14];
         u32 cr;
         u32 xer;
diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h
index 9ee12610af02..aace90547614 100644
--- a/arch/powerpc/include/asm/switch_to.h
+++ b/arch/powerpc/include/asm/switch_to.h
@@ -35,7 +35,7 @@ extern void giveup_vsx(struct task_struct *);
 extern void enable_kernel_spe(void);
 extern void giveup_spe(struct task_struct *);
 extern void load_up_spe(struct task_struct *);
-extern void switch_booke_debug_regs(struct thread_struct *new_thread);
+extern void switch_booke_debug_regs(struct debug_reg *new_debug);
 
 #ifndef CONFIG_SMP
 extern void discard_lazy_cpu_state(void);
diff --git a/arch/powerpc/include/asm/unaligned.h b/arch/powerpc/include/asm/unaligned.h
index 5f1b1e3c2137..8296381ae432 100644
--- a/arch/powerpc/include/asm/unaligned.h
+++ b/arch/powerpc/include/asm/unaligned.h
@@ -4,13 +4,18 @@
 #ifdef __KERNEL__
 
 /*
- * The PowerPC can do unaligned accesses itself in big endian mode.
+ * The PowerPC can do unaligned accesses itself based on its endian mode.
  */
 #include <linux/unaligned/access_ok.h>
 #include <linux/unaligned/generic.h>
 
+#ifdef __LITTLE_ENDIAN__
+#define get_unaligned   __get_unaligned_le
+#define put_unaligned   __put_unaligned_le
+#else
 #define get_unaligned   __get_unaligned_be
 #define put_unaligned   __put_unaligned_be
+#endif
 
 #endif  /* __KERNEL__ */
 #endif  /* _ASM_POWERPC_UNALIGNED_H */
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 2ea5cc033ec8..d3de01066f7d 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -576,6 +576,7 @@ int main(void)
         HSTATE_FIELD(HSTATE_VMHANDLER, vmhandler);
         HSTATE_FIELD(HSTATE_SCRATCH0, scratch0);
         HSTATE_FIELD(HSTATE_SCRATCH1, scratch1);
+        HSTATE_FIELD(HSTATE_SCRATCH2, scratch2);
         HSTATE_FIELD(HSTATE_IN_GUEST, in_guest);
         HSTATE_FIELD(HSTATE_RESTORE_HID5, restore_hid5);
         HSTATE_FIELD(HSTATE_NAPPING, napping);
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 2ae41aba4053..4f0946de2d5c 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -80,6 +80,7 @@ END_FTR_SECTION(0, 1)
          * of the function that the cpu should jump to to continue
          * initialization.
          */
+        .balign 8
         .globl  __secondary_hold_spinloop
 __secondary_hold_spinloop:
         .llong  0x0
@@ -470,6 +471,7 @@ _STATIC(__after_prom_start)
         mtctr   r8
         bctr
 
+.balign 8
 p_end:  .llong  _end - _stext
 
 4:      /* Now copy the rest of the kernel up to _end */
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 3386d8ab7eb0..4a96556fd2d4 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -339,7 +339,7 @@ static void set_debug_reg_defaults(struct thread_struct *thread)
 #endif
 }
 
-static void prime_debug_regs(struct thread_struct *thread)
+static void prime_debug_regs(struct debug_reg *debug)
 {
         /*
          * We could have inherited MSR_DE from userspace, since
@@ -348,22 +348,22 @@ static void prime_debug_regs(struct thread_struct *thread)
          */
         mtmsr(mfmsr() & ~MSR_DE);
 
-        mtspr(SPRN_IAC1, thread->debug.iac1);
-        mtspr(SPRN_IAC2, thread->debug.iac2);
+        mtspr(SPRN_IAC1, debug->iac1);
+        mtspr(SPRN_IAC2, debug->iac2);
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
-        mtspr(SPRN_IAC3, thread->debug.iac3);
-        mtspr(SPRN_IAC4, thread->debug.iac4);
+        mtspr(SPRN_IAC3, debug->iac3);
+        mtspr(SPRN_IAC4, debug->iac4);
 #endif
-        mtspr(SPRN_DAC1, thread->debug.dac1);
-        mtspr(SPRN_DAC2, thread->debug.dac2);
+        mtspr(SPRN_DAC1, debug->dac1);
+        mtspr(SPRN_DAC2, debug->dac2);
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
-        mtspr(SPRN_DVC1, thread->debug.dvc1);
-        mtspr(SPRN_DVC2, thread->debug.dvc2);
+        mtspr(SPRN_DVC1, debug->dvc1);
+        mtspr(SPRN_DVC2, debug->dvc2);
 #endif
-        mtspr(SPRN_DBCR0, thread->debug.dbcr0);
-        mtspr(SPRN_DBCR1, thread->debug.dbcr1);
+        mtspr(SPRN_DBCR0, debug->dbcr0);
+        mtspr(SPRN_DBCR1, debug->dbcr1);
 #ifdef CONFIG_BOOKE
-        mtspr(SPRN_DBCR2, thread->debug.dbcr2);
+        mtspr(SPRN_DBCR2, debug->dbcr2);
 #endif
 }
 /*
@@ -371,11 +371,11 @@ static void prime_debug_regs(struct thread_struct *thread)
  * debug registers, set the debug registers from the values
  * stored in the new thread.
  */
-void switch_booke_debug_regs(struct thread_struct *new_thread)
+void switch_booke_debug_regs(struct debug_reg *new_debug)
 {
         if ((current->thread.debug.dbcr0 & DBCR0_IDM)
-                || (new_thread->debug.dbcr0 & DBCR0_IDM))
-                        prime_debug_regs(new_thread);
+                || (new_debug->dbcr0 & DBCR0_IDM))
+                        prime_debug_regs(new_debug);
 }
 EXPORT_SYMBOL_GPL(switch_booke_debug_regs);
 #else   /* !CONFIG_PPC_ADV_DEBUG_REGS */
@@ -683,7 +683,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-        switch_booke_debug_regs(&new->thread);
+        switch_booke_debug_regs(&new->thread.debug);
 #else
 /*
  * For PPC_BOOK3S_64, we use the hw-breakpoint interfaces that would
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index f3ff587a8b7d..c5d148434c08 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -469,11 +469,14 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
                 slb_v = vcpu->kvm->arch.vrma_slb_v;
         }
 
+        preempt_disable();
         /* Find the HPTE in the hash table */
         index = kvmppc_hv_find_lock_hpte(kvm, eaddr, slb_v,
                                          HPTE_V_VALID | HPTE_V_ABSENT);
-        if (index < 0)
+        if (index < 0) {
+                preempt_enable();
                 return -ENOENT;
+        }
         hptep = (unsigned long *)(kvm->arch.hpt_virt + (index << 4));
         v = hptep[0] & ~HPTE_V_HVLOCK;
         gr = kvm->arch.revmap[index].guest_rpte;
@@ -481,6 +484,7 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
         /* Unlock the HPTE */
         asm volatile("lwsync" : : : "memory");
         hptep[0] = v;
+        preempt_enable();
 
         gpte->eaddr = eaddr;
         gpte->vpage = ((v & HPTE_V_AVPN) << 4) | ((eaddr >> 12) & 0xfff);
@@ -665,6 +669,7 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
                         return -EFAULT;
         } else {
                 page = pages[0];
+                pfn = page_to_pfn(page);
                 if (PageHuge(page)) {
                         page = compound_head(page);
                         pte_size <<= compound_order(page);
@@ -689,7 +694,6 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
                         }
                         rcu_read_unlock_sched();
                 }
-                pfn = page_to_pfn(page);
         }
 
         ret = -EFAULT;
@@ -707,8 +711,14 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
                 r = (r & ~(HPTE_R_W|HPTE_R_I|HPTE_R_G)) | HPTE_R_M;
         }
 
-        /* Set the HPTE to point to pfn */
-        r = (r & ~(HPTE_R_PP0 - pte_size)) | (pfn << PAGE_SHIFT);
+        /*
+         * Set the HPTE to point to pfn.
+         * Since the pfn is at PAGE_SIZE granularity, make sure we
+         * don't mask out lower-order bits if psize < PAGE_SIZE.
+         */
+        if (psize < PAGE_SIZE)
+                psize = PAGE_SIZE;
+        r = (r & ~(HPTE_R_PP0 - psize)) | ((pfn << PAGE_SHIFT) & ~(psize - 1));
         if (hpte_is_writable(r) && !write_ok)
                 r = hpte_make_readonly(r);
         ret = RESUME_GUEST;
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 072287f1c3bc..b51d5db78068 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -131,8 +131,9 @@ static void kvmppc_fast_vcpu_kick_hv(struct kvm_vcpu *vcpu)
 static void kvmppc_core_vcpu_load_hv(struct kvm_vcpu *vcpu, int cpu)
 {
         struct kvmppc_vcore *vc = vcpu->arch.vcore;
+        unsigned long flags;
 
-        spin_lock(&vcpu->arch.tbacct_lock);
+        spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags);
         if (vc->runner == vcpu && vc->vcore_state != VCORE_INACTIVE &&
             vc->preempt_tb != TB_NIL) {
                 vc->stolen_tb += mftb() - vc->preempt_tb;
@@ -143,19 +144,20 @@ static void kvmppc_core_vcpu_load_hv(struct kvm_vcpu *vcpu, int cpu)
                 vcpu->arch.busy_stolen += mftb() - vcpu->arch.busy_preempt;
                 vcpu->arch.busy_preempt = TB_NIL;
         }
-        spin_unlock(&vcpu->arch.tbacct_lock);
+        spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags);
 }
 
 static void kvmppc_core_vcpu_put_hv(struct kvm_vcpu *vcpu)
 {
         struct kvmppc_vcore *vc = vcpu->arch.vcore;
+        unsigned long flags;
 
-        spin_lock(&vcpu->arch.tbacct_lock);
+        spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags);
         if (vc->runner == vcpu && vc->vcore_state != VCORE_INACTIVE)
                 vc->preempt_tb = mftb();
         if (vcpu->arch.state == KVMPPC_VCPU_BUSY_IN_HOST)
                 vcpu->arch.busy_preempt = mftb();
-        spin_unlock(&vcpu->arch.tbacct_lock);
+        spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags);
 }
 
 static void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr)
@@ -486,11 +488,11 @@ static u64 vcore_stolen_time(struct kvmppc_vcore *vc, u64 now)
          */
         if (vc->vcore_state != VCORE_INACTIVE &&
             vc->runner->arch.run_task != current) {
-                spin_lock(&vc->runner->arch.tbacct_lock);
+                spin_lock_irq(&vc->runner->arch.tbacct_lock);
                 p = vc->stolen_tb;
                 if (vc->preempt_tb != TB_NIL)
                         p += now - vc->preempt_tb;
-                spin_unlock(&vc->runner->arch.tbacct_lock);
+                spin_unlock_irq(&vc->runner->arch.tbacct_lock);
         } else {
                 p = vc->stolen_tb;
         }
@@ -512,10 +514,10 @@ static void kvmppc_create_dtl_entry(struct kvm_vcpu *vcpu,
         core_stolen = vcore_stolen_time(vc, now);
         stolen = core_stolen - vcpu->arch.stolen_logged;
         vcpu->arch.stolen_logged = core_stolen;
-        spin_lock(&vcpu->arch.tbacct_lock);
+        spin_lock_irq(&vcpu->arch.tbacct_lock);
         stolen += vcpu->arch.busy_stolen;
         vcpu->arch.busy_stolen = 0;
-        spin_unlock(&vcpu->arch.tbacct_lock);
+        spin_unlock_irq(&vcpu->arch.tbacct_lock);
         if (!dt || !vpa)
                 return;
         memset(dt, 0, sizeof(struct dtl_entry));
@@ -589,7 +591,9 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
                 if (list_empty(&vcpu->kvm->arch.rtas_tokens))
                         return RESUME_HOST;
 
+                idx = srcu_read_lock(&vcpu->kvm->srcu);
                 rc = kvmppc_rtas_hcall(vcpu);
+                srcu_read_unlock(&vcpu->kvm->srcu, idx);
 
                 if (rc == -ENOENT)
                         return RESUME_HOST;
@@ -1115,13 +1119,13 @@ static void kvmppc_remove_runnable(struct kvmppc_vcore *vc,
 
         if (vcpu->arch.state != KVMPPC_VCPU_RUNNABLE)
                 return;
-        spin_lock(&vcpu->arch.tbacct_lock);
+        spin_lock_irq(&vcpu->arch.tbacct_lock);
         now = mftb();
         vcpu->arch.busy_stolen += vcore_stolen_time(vc, now) -
                 vcpu->arch.stolen_logged;
         vcpu->arch.busy_preempt = now;
         vcpu->arch.state = KVMPPC_VCPU_BUSY_IN_HOST;
-        spin_unlock(&vcpu->arch.tbacct_lock);
+        spin_unlock_irq(&vcpu->arch.tbacct_lock);
         --vc->n_runnable;
         list_del(&vcpu->arch.run_list);
 }
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 9c515440ad1a..8689e2e30857 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -225,6 +225,7 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
                 is_io = pa & (HPTE_R_I | HPTE_R_W);
                 pte_size = PAGE_SIZE << (pa & KVMPPC_PAGE_ORDER_MASK);
                 pa &= PAGE_MASK;
+                pa |= gpa & ~PAGE_MASK;
         } else {
                 /* Translate to host virtual address */
                 hva = __gfn_to_hva_memslot(memslot, gfn);
@@ -238,13 +239,13 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
                                 ptel = hpte_make_readonly(ptel);
                         is_io = hpte_cache_bits(pte_val(pte));
                         pa = pte_pfn(pte) << PAGE_SHIFT;
+                        pa |= hva & (pte_size - 1);
+                        pa |= gpa & ~PAGE_MASK;
                 }
         }
 
         if (pte_size < psize)
                 return H_PARAMETER;
-        if (pa && pte_size > psize)
-                pa |= gpa & (pte_size - 1);
 
         ptel &= ~(HPTE_R_PP0 - psize);
         ptel |= pa;
@@ -749,6 +750,10 @@ static int slb_base_page_shift[4] = {
         20,     /* 1M, unsupported */
 };
 
+/* When called from virtmode, this func should be protected by
+ * preempt_disable(), otherwise, the holding of HPTE_V_HVLOCK
+ * can trigger deadlock issue.
+ */
 long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, unsigned long slb_v,
                               unsigned long valid)
 {
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index bc8de75b1925..be4fa04a37c9 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -153,7 +153,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
 
 13:     b       machine_check_fwnmi
 
-
 /*
  * We come in here when wakened from nap mode on a secondary hw thread.
  * Relocation is off and most register values are lost.
@@ -224,6 +223,11 @@ kvm_start_guest:
         /* Clear our vcpu pointer so we don't come back in early */
         li      r0, 0
         std     r0, HSTATE_KVM_VCPU(r13)
+        /*
+         * Make sure we clear HSTATE_KVM_VCPU(r13) before incrementing
+         * the nap_count, because once the increment to nap_count is
+         * visible we could be given another vcpu.
+         */
         lwsync
         /* Clear any pending IPI - we're an offline thread */
         ld      r5, HSTATE_XICS_PHYS(r13)
@@ -241,7 +245,6 @@ kvm_start_guest:
         /* increment the nap count and then go to nap mode */
         ld      r4, HSTATE_KVM_VCORE(r13)
         addi    r4, r4, VCORE_NAP_COUNT
-        lwsync                          /* make previous updates visible */
 51:     lwarx   r3, 0, r4
         addi    r3, r3, 1
         stwcx.  r3, 0, r4
@@ -751,15 +754,14 @@ kvmppc_interrupt_hv:
          * guest CR, R12 saved in shadow VCPU SCRATCH1/0
          * guest R13 saved in SPRN_SCRATCH0
          */
-        /* abuse host_r2 as third scratch area; we get r2 from PACATOC(r13) */
-        std     r9, HSTATE_HOST_R2(r13)
+        std     r9, HSTATE_SCRATCH2(r13)
 
         lbz     r9, HSTATE_IN_GUEST(r13)
         cmpwi   r9, KVM_GUEST_MODE_HOST_HV
         beq     kvmppc_bad_host_intr
 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
         cmpwi   r9, KVM_GUEST_MODE_GUEST
-        ld      r9, HSTATE_HOST_R2(r13)
+        ld      r9, HSTATE_SCRATCH2(r13)
         beq     kvmppc_interrupt_pr
 #endif
         /* We're now back in the host but in guest MMU context */
@@ -779,7 +781,7 @@ kvmppc_interrupt_hv:
         std     r6, VCPU_GPR(R6)(r9)
         std     r7, VCPU_GPR(R7)(r9)
         std     r8, VCPU_GPR(R8)(r9)
-        ld      r0, HSTATE_HOST_R2(r13)
+        ld      r0, HSTATE_SCRATCH2(r13)
         std     r0, VCPU_GPR(R9)(r9)
         std     r10, VCPU_GPR(R10)(r9)
         std     r11, VCPU_GPR(R11)(r9)
@@ -990,14 +992,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
          */
         /* Increment the threads-exiting-guest count in the 0xff00
            bits of vcore->entry_exit_count */
-        lwsync
         ld      r5,HSTATE_KVM_VCORE(r13)
         addi    r6,r5,VCORE_ENTRY_EXIT
 41:     lwarx   r3,0,r6
         addi    r0,r3,0x100
         stwcx.  r0,0,r6
         bne     41b
-        lwsync
+        isync           /* order stwcx. vs. reading napping_threads */
 
         /*
          * At this point we have an interrupt that we have to pass
@@ -1030,6 +1031,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
         sld     r0,r0,r4
         andc.   r3,r3,r0                /* no sense IPI'ing ourselves */
         beq     43f
+        /* Order entry/exit update vs. IPIs */
+        sync
         mulli   r4,r4,PACA_SIZE         /* get paca for thread 0 */
         subf    r6,r4,r13
 42:     andi.   r0,r3,1
@@ -1638,10 +1641,10 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206)
         bge     kvm_cede_exit
         stwcx.  r4,0,r6
         bne     31b
+        /* order napping_threads update vs testing entry_exit_count */
+        isync
         li      r0,1
         stb     r0,HSTATE_NAPPING(r13)
-        /* order napping_threads update vs testing entry_exit_count */
-        lwsync
         mr      r4,r3
         lwz     r7,VCORE_ENTRY_EXIT(r5)
         cmpwi   r7,0x100
diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S
index f4dd041c14ea..f779450cb07c 100644
--- a/arch/powerpc/kvm/book3s_interrupts.S
+++ b/arch/powerpc/kvm/book3s_interrupts.S
@@ -129,29 +129,32 @@ kvm_start_lightweight:
          * R12      = exit handler id
          * R13      = PACA
          * SVCPU.*  = guest *
+         * MSR.EE   = 1
          *
          */
 
+        PPC_LL  r3, GPR4(r1)            /* vcpu pointer */
+
+        /*
+         * kvmppc_copy_from_svcpu can clobber volatile registers, save
+         * the exit handler id to the vcpu and restore it from there later.
+         */
+        stw     r12, VCPU_TRAP(r3)
+
         /* Transfer reg values from shadow vcpu back to vcpu struct */
         /* On 64-bit, interrupts are still off at this point */
-        PPC_LL  r3, GPR4(r1)            /* vcpu pointer */
+
         GET_SHADOW_VCPU(r4)
         bl      FUNC(kvmppc_copy_from_svcpu)
         nop
 
 #ifdef CONFIG_PPC_BOOK3S_64
-        /* Re-enable interrupts */
-        ld      r3, HSTATE_HOST_MSR(r13)
-        ori     r3, r3, MSR_EE
-        MTMSR_EERI(r3)
-
         /*
          * Reload kernel SPRG3 value.
          * No need to save guest value as usermode can't modify SPRG3.
          */
         ld      r3, PACA_SPRG3(r13)
         mtspr   SPRN_SPRG3, r3
-
 #endif /* CONFIG_PPC_BOOK3S_64 */
 
         /* R7 = vcpu */
@@ -177,7 +180,7 @@ kvm_start_lightweight:
         PPC_STL r31, VCPU_GPR(R31)(r7)
 
         /* Pass the exit number as 3rd argument to kvmppc_handle_exit */
-        mr      r5, r12
+        lwz     r5, VCPU_TRAP(r7)
 
         /* Restore r3 (kvm_run) and r4 (vcpu) */
         REST_2GPRS(3, r1)
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index fe14ca3dd171..5b9e9063cfaf 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -66,6 +66,7 @@ static void kvmppc_core_vcpu_load_pr(struct kvm_vcpu *vcpu, int cpu)
         struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
         memcpy(svcpu->slb, to_book3s(vcpu)->slb_shadow, sizeof(svcpu->slb));
         svcpu->slb_max = to_book3s(vcpu)->slb_shadow_max;
+        svcpu->in_use = 0;
         svcpu_put(svcpu);
 #endif
         vcpu->cpu = smp_processor_id();
@@ -78,6 +79,9 @@ static void kvmppc_core_vcpu_put_pr(struct kvm_vcpu *vcpu)
 {
 #ifdef CONFIG_PPC_BOOK3S_64
         struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
+        if (svcpu->in_use) {
+                kvmppc_copy_from_svcpu(vcpu, svcpu);
+        }
         memcpy(to_book3s(vcpu)->slb_shadow, svcpu->slb, sizeof(svcpu->slb));
         to_book3s(vcpu)->slb_shadow_max = svcpu->slb_max;
         svcpu_put(svcpu);
@@ -110,12 +114,26 @@ void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
         svcpu->ctr = vcpu->arch.ctr;
         svcpu->lr  = vcpu->arch.lr;
         svcpu->pc  = vcpu->arch.pc;
+        svcpu->in_use = true;
 }
 
 /* Copy data touched by real-mode code from shadow vcpu back to vcpu */
 void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
                             struct kvmppc_book3s_shadow_vcpu *svcpu)
 {
+        /*
+         * vcpu_put would just call us again because in_use hasn't
+         * been updated yet.
+         */
+        preempt_disable();
+
+        /*
+         * Maybe we were already preempted and synced the svcpu from
+         * our preempt notifiers. Don't bother touching this svcpu then.
+         */
+        if (!svcpu->in_use)
+                goto out;
+
         vcpu->arch.gpr[0] = svcpu->gpr[0];
         vcpu->arch.gpr[1] = svcpu->gpr[1];
         vcpu->arch.gpr[2] = svcpu->gpr[2];
@@ -139,6 +157,10 @@ void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
         vcpu->arch.fault_dar   = svcpu->fault_dar;
         vcpu->arch.fault_dsisr = svcpu->fault_dsisr;
         vcpu->arch.last_inst   = svcpu->last_inst;
+        svcpu->in_use = false;
+
+out:
+        preempt_enable();
 }
 
 static int kvmppc_core_check_requests_pr(struct kvm_vcpu *vcpu)
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S
index a38c4c9edab8..c3c5231adade 100644
--- a/arch/powerpc/kvm/book3s_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_rmhandlers.S
@@ -153,15 +153,11 @@ _GLOBAL(kvmppc_entry_trampoline)
 
         li      r6, MSR_IR | MSR_DR
         andc    r6, r5, r6      /* Clear DR and IR in MSR value */
-#ifdef CONFIG_PPC_BOOK3S_32
         /*
          * Set EE in HOST_MSR so that it's enabled when we get into our
-         * C exit handler function.  On 64-bit we delay enabling
-         * interrupts until we have finished transferring stuff
-         * to or from the PACA.
+         * C exit handler function.
          */
         ori     r5, r5, MSR_EE
-#endif
         mtsrr0  r7
         mtsrr1  r6
         RFI
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 53e65a210b9a..0591e05db74b 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -681,7 +681,7 @@ int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 {
         int ret, s;
-        struct thread_struct thread;
+        struct debug_reg debug;
 #ifdef CONFIG_PPC_FPU
         struct thread_fp_state fp;
         int fpexc_mode;
@@ -723,9 +723,9 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 #endif
 
         /* Switch to guest debug context */
-        thread.debug = vcpu->arch.shadow_dbg_reg;
-        switch_booke_debug_regs(&thread);
-        thread.debug = current->thread.debug;
+        debug = vcpu->arch.shadow_dbg_reg;
+        switch_booke_debug_regs(&debug);
+        debug = current->thread.debug;
         current->thread.debug = vcpu->arch.shadow_dbg_reg;
 
         kvmppc_fix_ee_before_entry();
@@ -736,8 +736,8 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
            We also get here with interrupts enabled. */
 
         /* Switch back to user space debug context */
-        switch_booke_debug_regs(&thread);
-        current->thread.debug = thread.debug;
+        switch_booke_debug_regs(&debug);
+        current->thread.debug = debug;
 
 #ifdef CONFIG_PPC_FPU
         kvmppc_save_guest_fp(vcpu);
diff --git a/arch/powerpc/lib/copyuser_64.S b/arch/powerpc/lib/copyuser_64.S
index d73a59014900..596a285c0755 100644
--- a/arch/powerpc/lib/copyuser_64.S
+++ b/arch/powerpc/lib/copyuser_64.S
@@ -9,6 +9,14 @@
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
 
+#ifdef __BIG_ENDIAN__
+#define sLd sld         /* Shift towards low-numbered address. */
+#define sHd srd         /* Shift towards high-numbered address. */
+#else
+#define sLd srd         /* Shift towards low-numbered address. */
+#define sHd sld         /* Shift towards high-numbered address. */
+#endif
+
         .align  7
 _GLOBAL(__copy_tofrom_user)
 BEGIN_FTR_SECTION
@@ -118,10 +126,10 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 
 24:     ld      r9,0(r4)        /* 3+2n loads, 2+2n stores */
 25:     ld      r0,8(r4)
-        sld     r6,r9,r10
+        sLd     r6,r9,r10
 26:     ldu     r9,16(r4)
-        srd     r7,r0,r11
-        sld     r8,r0,r10
+        sHd     r7,r0,r11
+        sLd     r8,r0,r10
         or      r7,r7,r6
         blt     cr6,79f
 27:     ld      r0,8(r4)
@@ -129,35 +137,35 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 
 28:     ld      r0,0(r4)        /* 4+2n loads, 3+2n stores */
 29:     ldu     r9,8(r4)
-        sld     r8,r0,r10
+        sLd     r8,r0,r10
         addi    r3,r3,-8
         blt     cr6,5f
 30:     ld      r0,8(r4)
-        srd     r12,r9,r11
-        sld     r6,r9,r10
+        sHd     r12,r9,r11
+        sLd     r6,r9,r10
 31:     ldu     r9,16(r4)
         or      r12,r8,r12
-        srd     r7,r0,r11
-        sld     r8,r0,r10
+        sHd     r7,r0,r11
+        sLd     r8,r0,r10
         addi    r3,r3,16
         beq     cr6,78f
 
 1:      or      r7,r7,r6
 32:     ld      r0,8(r4)
 76:     std     r12,8(r3)
-2:      srd     r12,r9,r11
-        sld     r6,r9,r10
+2:      sHd     r12,r9,r11
+        sLd     r6,r9,r10
 33:     ldu     r9,16(r4)
         or      r12,r8,r12
 77:     stdu    r7,16(r3)
-        srd     r7,r0,r11
-        sld     r8,r0,r10
+        sHd     r7,r0,r11
+        sLd     r8,r0,r10
         bdnz    1b
 
 78:     std     r12,8(r3)
         or      r7,r7,r6
 79:     std     r7,16(r3)
-5:      srd     r12,r9,r11
+5:      sHd     r12,r9,r11
         or      r12,r8,r12
 80:     std     r12,24(r3)
         bne     6f
@@ -165,23 +173,38 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
         blr
 6:      cmpwi   cr1,r5,8
         addi    r3,r3,32
-        sld     r9,r9,r10
+        sLd     r9,r9,r10
         ble     cr1,7f
 34:     ld      r0,8(r4)
-        srd     r7,r0,r11
+        sHd     r7,r0,r11
         or      r9,r7,r9
 7:
         bf      cr7*4+1,1f
+#ifdef __BIG_ENDIAN__
         rotldi  r9,r9,32
+#endif
 94:     stw     r9,0(r3)
+#ifdef __LITTLE_ENDIAN__
+        rotrdi  r9,r9,32
+#endif
         addi    r3,r3,4
 1:      bf      cr7*4+2,2f
+#ifdef __BIG_ENDIAN__
         rotldi  r9,r9,16
+#endif
 95:     sth     r9,0(r3)
+#ifdef __LITTLE_ENDIAN__
+        rotrdi  r9,r9,16
+#endif
         addi    r3,r3,2
 2:      bf      cr7*4+3,3f
+#ifdef __BIG_ENDIAN__
         rotldi  r9,r9,8
+#endif
 96:     stb     r9,0(r3)
+#ifdef __LITTLE_ENDIAN__
+        rotrdi  r9,r9,8
+#endif
 3:      li      r3,0
         blr
 
diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c
index 02245cee7818..d7ddcee7feb8 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -36,7 +36,6 @@
 #include "powernv.h"
 #include "pci.h"
 
-static char *hub_diag = NULL;
 static int ioda_eeh_nb_init = 0;
 
 static int ioda_eeh_event(struct notifier_block *nb,
@@ -140,15 +139,6 @@ static int ioda_eeh_post_init(struct pci_controller *hose)
                 ioda_eeh_nb_init = 1;
         }
 
-        /* We needn't HUB diag-data on PHB3 */
-        if (phb->type == PNV_PHB_IODA1 && !hub_diag) {
-                hub_diag = (char *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
-                if (!hub_diag) {
-                        pr_err("%s: Out of memory !\n", __func__);
-                        return -ENOMEM;
-                }
-        }
-
 #ifdef CONFIG_DEBUG_FS
         if (phb->dbgfs) {
                 debugfs_create_file("err_injct_outbound", 0600,
@@ -633,11 +623,10 @@ static void ioda_eeh_hub_diag_common(struct OpalIoP7IOCErrorData *data)
 static void ioda_eeh_hub_diag(struct pci_controller *hose)
 {
         struct pnv_phb *phb = hose->private_data;
-        struct OpalIoP7IOCErrorData *data;
+        struct OpalIoP7IOCErrorData *data = &phb->diag.hub_diag;
         long rc;
 
-        data = (struct OpalIoP7IOCErrorData *)ioda_eeh_hub_diag;
-        rc = opal_pci_get_hub_diag_data(phb->hub_id, data, PAGE_SIZE);
+        rc = opal_pci_get_hub_diag_data(phb->hub_id, data, sizeof(*data));
         if (rc != OPAL_SUCCESS) {
                 pr_warning("%s: Failed to get HUB#%llx diag-data (%ld)\n",
                            __func__, phb->hub_id, rc);
@@ -820,14 +809,15 @@ static void ioda_eeh_phb_diag(struct pci_controller *hose)
         struct OpalIoPhbErrorCommon *common;
         long rc;
 
-        common = (struct OpalIoPhbErrorCommon *)phb->diag.blob;
-        rc = opal_pci_get_phb_diag_data2(phb->opal_id, common, PAGE_SIZE);
+        rc = opal_pci_get_phb_diag_data2(phb->opal_id, phb->diag.blob,
+                                         PNV_PCI_DIAG_BUF_SIZE);
         if (rc != OPAL_SUCCESS) {
                 pr_warning("%s: Failed to get diag-data for PHB#%x (%ld)\n",
                             __func__, hose->global_number, rc);
                 return;
         }
 
+        common = (struct OpalIoPhbErrorCommon *)phb->diag.blob;
         switch (common->ioType) {
         case OPAL_PHB_ERROR_DATA_TYPE_P7IOC:
                 ioda_eeh_p7ioc_phb_diag(hose, common);
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 911c24ef033e..1ed8d5f40f5a 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -172,11 +172,13 @@ struct pnv_phb {
                 } ioda;
         };
 
-        /* PHB status structure */
+        /* PHB and hub status structure */
         union {
                 unsigned char                   blob[PNV_PCI_DIAG_BUF_SIZE];
                 struct OpalIoP7IOCPhbErrorData  p7ioc;
+                struct OpalIoP7IOCErrorData     hub_diag;
         } diag;
+
 };
 
 extern struct pci_ops pnv_pci_ops;
diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile
index 7b95f29e3174..3baff31e58cf 100644
--- a/arch/sh/lib/Makefile
+++ b/arch/sh/lib/Makefile
@@ -6,7 +6,7 @@ lib-y  = delay.o memmove.o memchr.o \
          checksum.o strlen.o div64.o div64-generic.o
 
 # Extracted from libgcc
-lib-y += movmem.o ashldi3.o ashrdi3.o lshrdi3.o \
+obj-y += movmem.o ashldi3.o ashrdi3.o lshrdi3.o \
          ashlsi3.o ashrsi3.o ashiftrt.o lshrsi3.o \
          udiv_qrnnd.o
 
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 8358dc144959..0f9e94537eee 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -619,7 +619,7 @@ static inline unsigned long pte_present(pte_t pte)
 }
 
 #define pte_accessible pte_accessible
-static inline unsigned long pte_accessible(pte_t a)
+static inline unsigned long pte_accessible(struct mm_struct *mm, pte_t a)
 {
         return pte_val(a) & _PAGE_VALID;
 }
@@ -847,7 +847,7 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr,
          * SUN4V NOTE: _PAGE_VALID is the same value in both the SUN4U
          *             and SUN4V pte layout, so this inline test is fine.
          */
-        if (likely(mm != &init_mm) && pte_accessible(orig))
+        if (likely(mm != &init_mm) && pte_accessible(mm, orig))
                 tlb_batch_add(mm, addr, ptep, orig, fullmm);
 }
 
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 3d1999458709..bbc8b12fa443 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -452,9 +452,16 @@ static inline int pte_present(pte_t a)
 }
 
 #define pte_accessible pte_accessible
-static inline int pte_accessible(pte_t a)
+static inline bool pte_accessible(struct mm_struct *mm, pte_t a)
 {
-        return pte_flags(a) & _PAGE_PRESENT;
+        if (pte_flags(a) & _PAGE_PRESENT)
+                return true;
+
+        if ((pte_flags(a) & (_PAGE_PROTNONE | _PAGE_NUMA)) &&
+                        mm_tlb_flush_pending(mm))
+                return true;
+
+        return false;
 }
 
 static inline int pte_hidden(pte_t pte)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index dc1ec0dff939..ea04b342c026 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -387,7 +387,8 @@ static void init_intel(struct cpuinfo_x86 *c)
                         set_cpu_cap(c, X86_FEATURE_PEBS);
         }
 
-        if (c->x86 == 6 && c->x86_model == 29 && cpu_has_clflush)
+        if (c->x86 == 6 && cpu_has_clflush &&
+            (c->x86_model == 29 || c->x86_model == 46 || c->x86_model == 47))
                 set_cpu_cap(c, X86_FEATURE_CLFLUSH_MONITOR);
 
 #ifdef CONFIG_X86_64
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index dd74e46828c0..0596e8e0cc19 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -83,6 +83,12 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,
                 pte_t pte = gup_get_pte(ptep);
                 struct page *page;
 
+                /* Similar to the PMD case, NUMA hinting must take slow path */
+                if (pte_numa(pte)) {
+                        pte_unmap(ptep);
+                        return 0;
+                }
+
                 if ((pte_flags(pte) & (mask | _PAGE_SPECIAL)) != mask) {
                         pte_unmap(ptep);
                         return 0;
@@ -167,6 +173,13 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
                 if (pmd_none(pmd) || pmd_trans_splitting(pmd))
                         return 0;
                 if (unlikely(pmd_large(pmd))) {
+                        /*
+                         * NUMA hinting faults need to be handled in the GUP
+                         * slowpath for accounting purposes and so that they
+                         * can be serialised against THP migration.
+                         */
+                        if (pmd_numa(pmd))
+                                return 0;
                         if (!gup_huge_pmd(pmd, addr, next, write, pages, nr))
                                 return 0;
                 } else {