Merge tag 'v3.7-rc7' into next/cleanup

Merging in mainline back to next/cleanup since it has collected a few conflicts between fixes going upstream and some of the cleanup patches. Git doesn't auto-resolve some of them, and they're mostly noise so let's take care of it locally. Conflicts are in: arch/arm/mach-omap2/omap_hwmod_44xx_data.c arch/arm/plat-omap/i2c.c drivers/video/omap2/dss/dss.c Signed-off-by: Olof Johansson <olof@lixom.net>
author: Olof Johansson <olof@lixom.net> 2012-11-25 21:34:34 -0800
committer: Olof Johansson <olof@lixom.net> 2012-11-25 21:34:34 -0800
commit: 0f9cb211ba5db93d488fe6b154138231fdd0e22d (patch)
tree: 293871b042e9ebc49b1d783f1b110eef541ddc97 /arch
parent: 007108a2279123ad6639b6c653ad1a731febb60f (diff)
parent: 9489e9dcae718d5fde988e4a684a0f55b5f94d17 (diff)
94 files changed, 1126 insertions, 621 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 1e6956a9060..14db93e4c8a 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -445,7 +445,7 @@ struct procfs_args {
  * unhappy with OSF UFS. [CHECKME]
  */
 static int
-osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
+osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags)
 {
 	int retval;
 	struct cdfs_args tmp;
@@ -465,7 +465,7 @@ osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
 }
 
 static int
-osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
+osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags)
 {
 	int retval;
 	struct cdfs_args tmp;
@@ -485,7 +485,7 @@ osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
 }
 
 static int
-osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
+osf_procfs_mount(const char *dirname, struct procfs_args __user *args, int flags)
 {
 	struct procfs_args tmp;
 
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index f2aa09eb658..9137df539b6 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)
-	$(kecho) '  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)
-	$(kecho) '  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)
-	$(kecho) '  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)
-	$(kecho) '  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)
-	$(kecho) '  Kernel: $@ is ready'
+	@$(kecho) '  Kernel: $@ is ready'
 
 PHONY += initrd FORCE
 initrd:
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index b1497c7d7d6..df7f2270fc9 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -73,8 +73,8 @@
 
 	pinmux: pinmux {
 		compatible = "nvidia,tegra30-pinmux";
-		reg = <0x70000868 0xd0    /* Pad control registers */
-		       0x70003000 0x3e0>; /* Mux registers */
+		reg = <0x70000868 0xd4    /* Pad control registers */
+		       0x70003000 0x3e4>; /* Mux registers */
 	};
 
 	serial@70006000 {
diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index 1e122bcd784..3cee0e6ea7c 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -68,7 +68,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable overcurrent notification */
 	for (i = 0; i < data->ports; i++) {
-		if (data->overcurrent_pin[i])
+		if (gpio_is_valid(data->overcurrent_pin[i]))
 			at91_set_gpio_input(data->overcurrent_pin[i], 1);
 	}
 
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index aa1e5872988..414bd855fb0 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -72,7 +72,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable overcurrent notification */
 	for (i = 0; i < data->ports; i++) {
-		if (data->overcurrent_pin[i])
+		if (gpio_is_valid(data->overcurrent_pin[i]))
 			at91_set_gpio_input(data->overcurrent_pin[i], 1);
 	}
 
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index b9487696b7b..cd604aad8e9 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -72,7 +72,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable overcurrent notification */
 	for (i = 0; i < data->ports; i++) {
-		if (data->overcurrent_pin[i])
+		if (gpio_is_valid(data->overcurrent_pin[i]))
 			at91_set_gpio_input(data->overcurrent_pin[i], 1);
 	}
 
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index cb85da2ecce..9c61e59a210 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -78,7 +78,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable overcurrent notification */
 	for (i = 0; i < data->ports; i++) {
-		if (data->overcurrent_pin[i])
+		if (gpio_is_valid(data->overcurrent_pin[i]))
 			at91_set_gpio_input(data->overcurrent_pin[i], 1);
 	}
 
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index b1596072dcc..fcd233cb33d 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -1841,8 +1841,8 @@ static struct resource sha_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91SAM9G45_ID_AESTDESSHA,
-		.end	= AT91SAM9G45_ID_AESTDESSHA,
+		.start	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
+		.end	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -1874,8 +1874,8 @@ static struct resource tdes_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91SAM9G45_ID_AESTDESSHA,
-		.end	= AT91SAM9G45_ID_AESTDESSHA,
+		.start	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
+		.end	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -1910,8 +1910,8 @@ static struct resource aes_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91SAM9G45_ID_AESTDESSHA,
-		.end	= AT91SAM9G45_ID_AESTDESSHA,
+		.start	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
+		.end	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index cd0c8b1e1ec..14e9947bad6 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -713,8 +713,7 @@ static int dm644x_venc_setup_clock(enum vpbe_enc_timings_type type,
 		break;
 	case VPBE_ENC_CUSTOM_TIMINGS:
 		if (pclock <= 27000000) {
-			v |= DM644X_VPSS_MUXSEL_PLL2_MODE |
-			     DM644X_VPSS_DACCLKEN;
+			v |= DM644X_VPSS_DACCLKEN;
 			writel(v, DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL));
 		} else {
 			/*
diff --git a/arch/arm/mach-exynos/dma.c b/arch/arm/mach-exynos/dma.c
index 21d568b3b14..87e07d6fc61 100644
--- a/arch/arm/mach-exynos/dma.c
+++ b/arch/arm/mach-exynos/dma.c
@@ -275,6 +275,9 @@ static int __init exynos_dma_init(void)
 		exynos_pdma1_pdata.nr_valid_peri =
 			ARRAY_SIZE(exynos4210_pdma1_peri);
 		exynos_pdma1_pdata.peri_id = exynos4210_pdma1_peri;
+
+		if (samsung_rev() == EXYNOS4210_REV_0)
+			exynos_mdma1_device.res.start = EXYNOS4_PA_S_MDMA1;
 	} else if (soc_is_exynos4212() || soc_is_exynos4412()) {
 		exynos_pdma0_pdata.nr_valid_peri =
 			ARRAY_SIZE(exynos4212_pdma0_peri);
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index e7373311bfb..872840b2ff4 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -90,6 +90,7 @@
 
 #define EXYNOS4_PA_MDMA0		0x10810000
 #define EXYNOS4_PA_MDMA1		0x12850000
+#define EXYNOS4_PA_S_MDMA1		0x12840000
 #define EXYNOS4_PA_PDMA0		0x12680000
 #define EXYNOS4_PA_PDMA1		0x12690000
 #define EXYNOS5_PA_MDMA0		0x10800000
diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c
index 82c27230d4a..86e37cd9376 100644
--- a/arch/arm/mach-highbank/system.c
+++ b/arch/arm/mach-highbank/system.c
@@ -28,6 +28,7 @@ void highbank_restart(char mode, const char *cmd)
 		hignbank_set_pwr_soft_reset();
 
 	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
-	cpu_do_idle();
+	while (1)
+		cpu_do_idle();
 }
 
diff --git a/arch/arm/mach-imx/clk-gate2.c b/arch/arm/mach-imx/clk-gate2.c
index 3c1b8ff9a0a..cc49c7ae186 100644
--- a/arch/arm/mach-imx/clk-gate2.c
+++ b/arch/arm/mach-imx/clk-gate2.c
@@ -112,7 +112,7 @@ struct clk *clk_register_gate2(struct device *dev, const char *name,
 
 	clk = clk_register(dev, &gate->hw);
 	if (IS_ERR(clk))
-		kfree(clk);
+		kfree(gate);
 
 	return clk;
 }
diff --git a/arch/arm/mach-imx/ehci-imx25.c b/arch/arm/mach-imx/ehci-imx25.c
index 27e40d17de9..134c190e300 100644
--- a/arch/arm/mach-imx/ehci-imx25.c
+++ b/arch/arm/mach-imx/ehci-imx25.c
@@ -30,7 +30,7 @@
 #define MX25_H1_SIC_SHIFT	21
 #define MX25_H1_SIC_MASK	(0x3 << MX25_H1_SIC_SHIFT)
 #define MX25_H1_PP_BIT		(1 << 18)
-#define MX25_H1_PM_BIT		(1 << 8)
+#define MX25_H1_PM_BIT		(1 << 16)
 #define MX25_H1_IPPUE_UP_BIT	(1 << 7)
 #define MX25_H1_IPPUE_DOWN_BIT	(1 << 6)
 #define MX25_H1_TLL_BIT		(1 << 5)
diff --git a/arch/arm/mach-imx/ehci-imx35.c b/arch/arm/mach-imx/ehci-imx35.c
index a596f709a93..554e7cccff5 100644
--- a/arch/arm/mach-imx/ehci-imx35.c
+++ b/arch/arm/mach-imx/ehci-imx35.c
@@ -30,7 +30,7 @@
 #define MX35_H1_SIC_SHIFT	21
 #define MX35_H1_SIC_MASK	(0x3 << MX35_H1_SIC_SHIFT)
 #define MX35_H1_PP_BIT		(1 << 18)
-#define MX35_H1_PM_BIT		(1 << 8)
+#define MX35_H1_PM_BIT		(1 << 16)
 #define MX35_H1_IPPUE_UP_BIT	(1 << 7)
 #define MX35_H1_IPPUE_DOWN_BIT	(1 << 6)
 #define MX35_H1_TLL_BIT		(1 << 5)
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index cea5d529262..0f24cb84ba5 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -579,6 +579,11 @@ static void __init igep_wlan_bt_init(void)
 	} else
 		return;
 
+	/* Make sure that the GPIO pins are muxed correctly */
+	omap_mux_init_gpio(igep_wlan_bt_gpios[0].gpio, OMAP_PIN_OUTPUT);
+	omap_mux_init_gpio(igep_wlan_bt_gpios[1].gpio, OMAP_PIN_OUTPUT);
+	omap_mux_init_gpio(igep_wlan_bt_gpios[2].gpio, OMAP_PIN_OUTPUT);
+
 	err = gpio_request_array(igep_wlan_bt_gpios,
 				 ARRAY_SIZE(igep_wlan_bt_gpios));
 	if (err) {
diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c
index b56d06b4878..95192a062d5 100644
--- a/arch/arm/mach-omap2/clockdomains44xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains44xx_data.c
@@ -359,7 +359,7 @@ static struct clockdomain iss_44xx_clkdm = {
 	.clkdm_offs	  = OMAP4430_CM2_CAM_CAM_CDOFFS,
 	.wkdep_srcs	  = iss_wkup_sleep_deps,
 	.sleepdep_srcs	  = iss_wkup_sleep_deps,
-	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.flags		  = CLKDM_CAN_SWSUP,
 };
 
 static struct clockdomain l3_dss_44xx_clkdm = {
diff --git a/arch/arm/mach-omap2/common-board-devices.c b/arch/arm/mach-omap2/common-board-devices.c
index ad856092c06..d246efd9f73 100644
--- a/arch/arm/mach-omap2/common-board-devices.c
+++ b/arch/arm/mach-omap2/common-board-devices.c
@@ -63,30 +63,36 @@ void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce,
 	struct spi_board_info *spi_bi = &ads7846_spi_board_info;
 	int err;
 
-	err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown");
-	if (err) {
-		pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err);
-		return;
-	}
+	/*
+	 * If a board defines get_pendown_state() function, request the pendown
+	 * GPIO and set the GPIO debounce time.
+	 * If a board does not define the get_pendown_state() function, then
+	 * the ads7846 driver will setup the pendown GPIO itself.
+	 */
+	if (board_pdata && board_pdata->get_pendown_state) {
+		err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown");
+		if (err) {
+			pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err);
+			return;
+		}
+
+		if (gpio_debounce)
+			gpio_set_debounce(gpio_pendown, gpio_debounce);
 
-	if (gpio_debounce)
-		gpio_set_debounce(gpio_pendown, gpio_debounce);
+		gpio_export(gpio_pendown, 0);
+	}
 
 	spi_bi->bus_num	= bus_num;
 	spi_bi->irq	= gpio_to_irq(gpio_pendown);
 
+	ads7846_config.gpio_pendown = gpio_pendown;
+
 	if (board_pdata) {
 		board_pdata->gpio_pendown = gpio_pendown;
+		board_pdata->gpio_pendown_debounce = gpio_debounce;
 		spi_bi->platform_data = board_pdata;
-		if (board_pdata->get_pendown_state)
-			gpio_export(gpio_pendown, 0);
-	} else {
-		ads7846_config.gpio_pendown = gpio_pendown;
 	}
 
-	if (!board_pdata || (board_pdata && !board_pdata->get_pendown_state))
-		gpio_free(gpio_pendown);
-
 	spi_register_board_info(&ads7846_spi_board_info, 1);
 }
 #else
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index cf365c387c0..d2215e9873a 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -19,6 +19,7 @@
 #include <linux/of.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/omap4-keypad.h>
+#include <linux/platform_data/omap_ocp2scp.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -615,6 +616,83 @@ static void omap_init_vout(void)
 static inline void omap_init_vout(void) {}
 #endif
 
+#if defined(CONFIG_OMAP_OCP2SCP) || defined(CONFIG_OMAP_OCP2SCP_MODULE)
+static int count_ocp2scp_devices(struct omap_ocp2scp_dev *ocp2scp_dev)
+{
+	int cnt	= 0;
+
+	while (ocp2scp_dev->drv_name != NULL) {
+		cnt++;
+		ocp2scp_dev++;
+	}
+
+	return cnt;
+}
+
+static void omap_init_ocp2scp(void)
+{
+	struct omap_hwmod	*oh;
+	struct platform_device	*pdev;
+	int			bus_id = -1, dev_cnt = 0, i;
+	struct omap_ocp2scp_dev	*ocp2scp_dev;
+	const char		*oh_name, *name;
+	struct omap_ocp2scp_platform_data *pdata;
+
+	if (!cpu_is_omap44xx())
+		return;
+
+	oh_name = "ocp2scp_usb_phy";
+	name	= "omap-ocp2scp";
+
+	oh = omap_hwmod_lookup(oh_name);
+	if (!oh) {
+		pr_err("%s: could not find omap_hwmod for %s\n", __func__,
+								oh_name);
+		return;
+	}
+
+	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+	if (!pdata) {
+		pr_err("%s: No memory for ocp2scp pdata\n", __func__);
+		return;
+	}
+
+	ocp2scp_dev = oh->dev_attr;
+	dev_cnt = count_ocp2scp_devices(ocp2scp_dev);
+
+	if (!dev_cnt) {
+		pr_err("%s: No devices connected to ocp2scp\n", __func__);
+		kfree(pdata);
+		return;
+	}
+
+	pdata->devices = kzalloc(sizeof(struct omap_ocp2scp_dev *)
+					* dev_cnt, GFP_KERNEL);
+	if (!pdata->devices) {
+		pr_err("%s: No memory for ocp2scp pdata devices\n", __func__);
+		kfree(pdata);
+		return;
+	}
+
+	for (i = 0; i < dev_cnt; i++, ocp2scp_dev++)
+		pdata->devices[i] = ocp2scp_dev;
+
+	pdata->dev_cnt	= dev_cnt;
+
+	pdev = omap_device_build(name, bus_id, oh, pdata, sizeof(*pdata), NULL,
+								0, false);
+	if (IS_ERR(pdev)) {
+		pr_err("Could not build omap_device for %s %s\n",
+						name, oh_name);
+		kfree(pdata->devices);
+		kfree(pdata);
+		return;
+	}
+}
+#else
+static inline void omap_init_ocp2scp(void) { }
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 static int __init omap2_init_devices(void)
@@ -642,6 +720,7 @@ static int __init omap2_init_devices(void)
 	omap_init_sham();
 	omap_init_aes();
 	omap_init_vout();
+	omap_init_ocp2scp();
 
 	return 0;
 }
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 139adca3bda..b3b00f43dd7 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -420,6 +420,38 @@ static int _set_softreset(struct omap_hwmod *oh, u32 *v)
 }
 
 /**
+ * _wait_softreset_complete - wait for an OCP softreset to complete
+ * @oh: struct omap_hwmod * to wait on
+ *
+ * Wait until the IP block represented by @oh reports that its OCP
+ * softreset is complete.  This can be triggered by software (see
+ * _ocp_softreset()) or by hardware upon returning from off-mode (one
+ * example is HSMMC).  Waits for up to MAX_MODULE_SOFTRESET_WAIT
+ * microseconds.  Returns the number of microseconds waited.
+ */
+static int _wait_softreset_complete(struct omap_hwmod *oh)
+{
+	struct omap_hwmod_class_sysconfig *sysc;
+	u32 softrst_mask;
+	int c = 0;
+
+	sysc = oh->class->sysc;
+
+	if (sysc->sysc_flags & SYSS_HAS_RESET_STATUS)
+		omap_test_timeout((omap_hwmod_read(oh, sysc->syss_offs)
+				   & SYSS_RESETDONE_MASK),
+				  MAX_MODULE_SOFTRESET_WAIT, c);
+	else if (sysc->sysc_flags & SYSC_HAS_RESET_STATUS) {
+		softrst_mask = (0x1 << sysc->sysc_fields->srst_shift);
+		omap_test_timeout(!(omap_hwmod_read(oh, sysc->sysc_offs)
+				    & softrst_mask),
+				  MAX_MODULE_SOFTRESET_WAIT, c);
+	}
+
+	return c;
+}
+
+/**
  * _set_dmadisable: set OCP_SYSCONFIG.DMADISABLE bit in @v
  * @oh: struct omap_hwmod *
  *
@@ -1280,6 +1312,18 @@ static void _enable_sysc(struct omap_hwmod *oh)
 	if (!oh->class->sysc)
 		return;
 
+	/*
+	 * Wait until reset has completed, this is needed as the IP
+	 * block is reset automatically by hardware in some cases
+	 * (off-mode for example), and the drivers require the
+	 * IP to be ready when they access it
+	 */
+	if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET)
+		_enable_optional_clocks(oh);
+	_wait_softreset_complete(oh);
+	if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET)
+		_disable_optional_clocks(oh);
+
 	v = oh->_sysc_cache;
 	sf = oh->class->sysc->sysc_flags;
 
@@ -1802,7 +1846,7 @@ static int _am33xx_disable_module(struct omap_hwmod *oh)
  */
 static int _ocp_softreset(struct omap_hwmod *oh)
 {
-	u32 v, softrst_mask;
+	u32 v;
 	int c = 0;
 	int ret = 0;
 
@@ -1832,19 +1876,7 @@ static int _ocp_softreset(struct omap_hwmod *oh)
 	if (oh->class->sysc->srst_udelay)
 		udelay(oh->class->sysc->srst_udelay);
 
-	if (oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS)
-		omap_test_timeout((omap_hwmod_read(oh,
-						    oh->class->sysc->syss_offs)
-				   & SYSS_RESETDONE_MASK),
-				  MAX_MODULE_SOFTRESET_WAIT, c);
-	else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS) {
-		softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift);
-		omap_test_timeout(!(omap_hwmod_read(oh,
-						     oh->class->sysc->sysc_offs)
-				   & softrst_mask),
-				  MAX_MODULE_SOFTRESET_WAIT, c);
-	}
-
+	c = _wait_softreset_complete(oh);
 	if (c == MAX_MODULE_SOFTRESET_WAIT)
 		pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n",
 			   oh->name, MAX_MODULE_SOFTRESET_WAIT);
@@ -2351,6 +2383,9 @@ static int __init _setup_reset(struct omap_hwmod *oh)
 	if (oh->_state != _HWMOD_STATE_INITIALIZED)
 		return -EINVAL;
 
+	if (oh->flags & HWMOD_EXT_OPT_MAIN_CLK)
+		return -EPERM;
+
 	if (oh->rst_lines_cnt == 0) {
 		r = _enable(oh);
 		if (r) {
diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index 87b59b45c67..87a3c5b7aa7 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -442,6 +442,11 @@ struct omap_hwmod_omap4_prcm {
  *     in order to complete the reset. Optional clocks will be disabled
  *     again after the reset.
  * HWMOD_16BIT_REG: Module has 16bit registers
+ * HWMOD_EXT_OPT_MAIN_CLK: The only main functional clock source for
+ *     this IP block comes from an off-chip source and is not always
+ *     enabled.  This prevents the hwmod code from being able to
+ *     enable and reset the IP block early.  XXX Eventually it should
+ *     be possible to query the clock framework for this information.
  */
 #define HWMOD_SWSUP_SIDLE			(1 << 0)
 #define HWMOD_SWSUP_MSTANDBY			(1 << 1)
@@ -452,6 +457,7 @@ struct omap_hwmod_omap4_prcm {
 #define HWMOD_NO_IDLEST				(1 << 6)
 #define HWMOD_CONTROL_OPT_CLKS_IN_RESET		(1 << 7)
 #define HWMOD_16BIT_REG				(1 << 8)
+#define HWMOD_EXT_OPT_MAIN_CLK			(1 << 9)
 
 /*
  * omap_hwmod._int_flags definitions
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 7a6132848f5..b80bbf607ef 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -25,6 +25,7 @@
 
 #include <plat-omap/dma-omap.h>
 
+#include <linux/platform_data/omap_ocp2scp.h>
 #include <linux/platform_data/spi-omap2-mcspi.h>
 #include <linux/platform_data/asoc-ti-mcbsp.h>
 #include <plat/dmtimer.h>
@@ -2126,6 +2127,14 @@ static struct omap_hwmod omap44xx_mcpdm_hwmod = {
 	.name		= "mcpdm",
 	.class		= &omap44xx_mcpdm_hwmod_class,
 	.clkdm_name	= "abe_clkdm",
+	/*
+	 * It's suspected that the McPDM requires an off-chip main
+	 * functional clock, controlled via I2C.  This IP block is
+	 * currently reset very early during boot, before I2C is
+	 * available, so it doesn't seem that we have any choice in
+	 * the kernel other than to avoid resetting it.
+	 */
+	.flags		= HWMOD_EXT_OPT_MAIN_CLK,
 	.mpu_irqs	= omap44xx_mcpdm_irqs,
 	.sdma_reqs	= omap44xx_mcpdm_sdma_reqs,
 	.main_clk	= "mcpdm_fck",
@@ -2682,6 +2691,32 @@ static struct omap_hwmod_class omap44xx_ocp2scp_hwmod_class = {
 	.sysc	= &omap44xx_ocp2scp_sysc,
 };
 
+/* ocp2scp dev_attr */
+static struct resource omap44xx_usb_phy_and_pll_addrs[] = {
+	{
+		.name		= "usb_phy",
+		.start		= 0x4a0ad080,
+		.end		= 0x4a0ae000,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		/* XXX: Remove this once control module driver is in place */
+		.name		= "ctrl_dev",
+		.start		= 0x4a002300,
+		.end		= 0x4a002303,
+		.flags		= IORESOURCE_MEM,
+	},
+	{ }
+};
+
+static struct omap_ocp2scp_dev ocp2scp_dev_attr[] = {
+	{
+		.drv_name       = "omap-usb2",
+		.res		= omap44xx_usb_phy_and_pll_addrs,
+	},
+	{ }
+};
+
 /* ocp2scp_usb_phy */
 static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
 	.name		= "ocp2scp_usb_phy",
@@ -2695,6 +2730,7 @@ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
 			.modulemode   = MODULEMODE_HWCTRL,
 		},
 	},
+	.dev_attr	= ocp2scp_dev_attr,
 };
 
 /*
diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index 827f54a1dd1..e49b40b4c90 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -70,6 +70,7 @@ void __init omap4_pmic_init(const char *pmic_type,
 {
 	/* PMIC part*/
 	omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE);
+	omap_mux_init_signal("fref_clk0_out.sys_drm_msecure", OMAP_PIN_OUTPUT);
 	omap_pmic_init(1, 400, pmic_type, 7 + OMAP44XX_IRQ_GIC_START, pmic_data);
 
 	/* Register additional devices on i2c1 bus if needed */
@@ -363,7 +364,7 @@ static struct regulator_init_data omap4_clk32kg_idata = {
 };
 
 static struct regulator_consumer_supply omap4_vdd1_supply[] = {
-	REGULATOR_SUPPLY("vcc", "mpu.0"),
+	REGULATOR_SUPPLY("vcc", "cpu0"),
 };
 
 static struct regulator_consumer_supply omap4_vdd2_supply[] = {
diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c
index 880249b1701..75878c37959 100644
--- a/arch/arm/mach-omap2/vc.c
+++ b/arch/arm/mach-omap2/vc.c
@@ -264,7 +264,7 @@ static void __init omap_vc_i2c_init(struct voltagedomain *voltdm)
 
 	if (initialized) {
 		if (voltdm->pmic->i2c_high_speed != i2c_high_speed)
-			pr_warn("%s: I2C config for vdd_%s does not match other channels (%u).",
+			pr_warn("%s: I2C config for vdd_%s does not match other channels (%u).\n",
 				__func__, voltdm->name, i2c_high_speed);
 		return;
 	}
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index 5ecbd17b564..e2c6391863f 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -28,6 +28,7 @@
 #include <linux/mfd/asic3.h>
 #include <linux/mtd/physmap.h>
 #include <linux/pda_power.h>
+#include <linux/pwm.h>
 #include <linux/pwm_backlight.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/gpio-regulator.h>
@@ -556,7 +557,7 @@ static struct platform_device hx4700_lcd = {
  */
 
 static struct platform_pwm_backlight_data backlight_data = {
-	.pwm_id         = 1,
+	.pwm_id         = -1,	/* Superseded by pwm_lookup */
 	.max_brightness = 200,
 	.dft_brightness = 100,
 	.pwm_period_ns  = 30923,
@@ -571,6 +572,10 @@ static struct platform_device backlight = {
 	},
 };
 
+static struct pwm_lookup hx4700_pwm_lookup[] = {
+	PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight", NULL),
+};
+
 /*
  * USB "Transceiver"
  */
@@ -872,6 +877,7 @@ static void __init hx4700_init(void)
 	pxa_set_stuart_info(NULL);
 
 	platform_add_devices(devices, ARRAY_SIZE(devices));
+	pwm_add_table(hx4700_pwm_lookup, ARRAY_SIZE(hx4700_pwm_lookup));
 
 	pxa_set_ficp_info(&ficp_info);
 	pxa27x_set_i2c_power_info(NULL);
diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c
index 438f02fe122..842596d4d31 100644
--- a/arch/arm/mach-pxa/spitz_pm.c
+++ b/arch/arm/mach-pxa/spitz_pm.c
@@ -86,10 +86,7 @@ static void spitz_discharge1(int on)
 	gpio_set_value(SPITZ_GPIO_LED_GREEN, on);
 }
 
-static unsigned long gpio18_config[] = {
-	GPIO18_RDY,
-	GPIO18_GPIO,
-};
+static unsigned long gpio18_config = GPIO18_GPIO;
 
 static void spitz_presuspend(void)
 {
@@ -112,7 +109,7 @@ static void spitz_presuspend(void)
 	PGSR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
 	PGSR2 |= GPIO_bit(SPITZ_GPIO_KEY_STROBE0);
 
-	pxa2xx_mfp_config(&gpio18_config[0], 1);
+	pxa2xx_mfp_config(&gpio18_config, 1);
 	gpio_request_one(18, GPIOF_OUT_INIT_HIGH, "Unknown");
 	gpio_free(18);
 
@@ -131,7 +128,6 @@ static void spitz_presuspend(void)
 
 static void spitz_postsuspend(void)
 {
-	pxa2xx_mfp_config(&gpio18_config[1], 1);
 }
 
 static int spitz_should_wakeup(unsigned int resume_on_alarm)
diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile
index cd60a81163e..32d05c8219d 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
-	$(kecho) '  Generating $@'
+	@$(kecho) '  Generating $@'
 	@mkdir -p $(dir $@)
 	$(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; }
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 54f6116697f..d2f05a60827 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -222,7 +222,7 @@ extern void __iomem *__ioremap(phys_addr_t phys_addr, size_t size, pgprot_t prot
 extern void __iounmap(volatile void __iomem *addr);
 
 #define PROT_DEFAULT		(PTE_TYPE_PAGE | PTE_AF | PTE_DIRTY)
-#define PROT_DEVICE_nGnRE	(PROT_DEFAULT | PTE_XN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
+#define PROT_DEVICE_nGnRE	(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
 #define PROT_NORMAL_NC		(PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC))
 
 #define ioremap(addr, size)		__ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index 0f3b4581d92..75fd13d289b 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -38,7 +38,8 @@
 #define PMD_SECT_S		(_AT(pmdval_t, 3) << 8)
 #define PMD_SECT_AF		(_AT(pmdval_t, 1) << 10)
 #define PMD_SECT_NG		(_AT(pmdval_t, 1) << 11)
-#define PMD_SECT_XN		(_AT(pmdval_t, 1) << 54)
+#define PMD_SECT_PXN		(_AT(pmdval_t, 1) << 53)
+#define PMD_SECT_UXN		(_AT(pmdval_t, 1) << 54)
 
 /*
  * AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers).
@@ -57,7 +58,8 @@
 #define PTE_SHARED		(_AT(pteval_t, 3) << 8)		/* SH[1:0], inner shareable */
 #define PTE_AF			(_AT(pteval_t, 1) << 10)	/* Access Flag */
 #define PTE_NG			(_AT(pteval_t, 1) << 11)	/* nG */
-#define PTE_XN			(_AT(pteval_t, 1) << 54)	/* XN */
+#define PTE_PXN			(_AT(pteval_t, 1) << 53)	/* Privileged XN */
+#define PTE_UXN			(_AT(pteval_t, 1) << 54)	/* User XN */
 
 /*
  * AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers).
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 8960239be72..14aba2db677 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -62,23 +62,23 @@ extern pgprot_t pgprot_default;
 
 #define _MOD_PROT(p, b)	__pgprot(pgprot_val(p) | (b))
 
-#define PAGE_NONE		_MOD_PROT(pgprot_default, PTE_NG | PTE_XN | PTE_RDONLY)
-#define PAGE_SHARED		_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_XN)
-#define PAGE_SHARED_EXEC	_MOD_PROT(pgprot_default, PTE_USER | PTE_NG)
-#define PAGE_COPY		_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY)
-#define PAGE_COPY_EXEC		_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_RDONLY)
-#define PAGE_READONLY		_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY)
-#define PAGE_READONLY_EXEC	_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_RDONLY)
-#define PAGE_KERNEL		_MOD_PROT(pgprot_default, PTE_XN | PTE_DIRTY)
-#define PAGE_KERNEL_EXEC	_MOD_PROT(pgprot_default, PTE_DIRTY)
-
-#define __PAGE_NONE		__pgprot(_PAGE_DEFAULT | PTE_NG | PTE_XN | PTE_RDONLY)
-#define __PAGE_SHARED		__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_XN)
-#define __PAGE_SHARED_EXEC	__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG)
-#define __PAGE_COPY		__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY)
-#define __PAGE_COPY_EXEC	__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_RDONLY)
-#define __PAGE_READONLY		__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY)
-#define __PAGE_READONLY_EXEC	__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_RDONLY)
+#define PAGE_NONE		_MOD_PROT(pgprot_default, PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define PAGE_SHARED		_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN)
+#define PAGE_SHARED_EXEC	_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN)
+#define PAGE_COPY		_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define PAGE_COPY_EXEC		_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY)
+#define PAGE_READONLY		_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define PAGE_READONLY_EXEC	_MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY)
+#define PAGE_KERNEL		_MOD_PROT(pgprot_default, PTE_PXN | PTE_UXN | PTE_DIRTY)
+#define PAGE_KERNEL_EXEC	_MOD_PROT(pgprot_default, PTE_UXN | PTE_DIRTY)
+
+#define __PAGE_NONE		__pgprot(_PAGE_DEFAULT | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define __PAGE_SHARED		__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN)
+#define __PAGE_SHARED_EXEC	__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN)
+#define __PAGE_COPY		__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define __PAGE_COPY_EXEC	__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY)
+#define __PAGE_READONLY		__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define __PAGE_READONLY_EXEC	__pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY)
 
 #endif /* __ASSEMBLY__ */
 
@@ -130,10 +130,10 @@ extern struct page *empty_zero_page;
 #define pte_young(pte)		(pte_val(pte) & PTE_AF)
 #define pte_special(pte)	(pte_val(pte) & PTE_SPECIAL)
 #define pte_write(pte)		(!(pte_val(pte) & PTE_RDONLY))
-#define pte_exec(pte)		(!(pte_val(pte) & PTE_XN))
+#define pte_exec(pte)		(!(pte_val(pte) & PTE_UXN))
 
 #define pte_present_exec_user(pte) \
-	((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_XN)) == \
+	((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_UXN)) == \
 	 (PTE_VALID | PTE_USER))
 
 #define PTE_BIT_FUNC(fn,op) \
@@ -262,7 +262,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
 
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 {
-	const pteval_t mask = PTE_USER | PTE_XN | PTE_RDONLY;
+	const pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY;
 	pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
 	return pte;
 }
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index acd5b68e887..082e383c1b6 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -637,7 +637,6 @@ mem_init (void)
 
 	high_memory = __va(max_low_pfn * PAGE_SIZE);
 
-	reset_zone_present_pages();
 	for_each_online_pgdat(pgdat)
 		if (pgdat->bdata->node_bootmem_map)
 			totalram_pages += free_all_bootmem_node(pgdat);
diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h
index 67e489d8d1b..2df26b57c26 100644
--- a/arch/m68k/include/asm/signal.h
+++ b/arch/m68k/include/asm/signal.h
@@ -41,7 +41,7 @@ struct k_sigaction {
 static inline void sigaddset(sigset_t *set, int _sig)
 {
 	asm ("bfset %0{%1,#1}"
-		: "+od" (*set)
+		: "+o" (*set)
 		: "id" ((_sig - 1) ^ 31)
 		: "cc");
 }
@@ -49,7 +49,7 @@ static inline void sigaddset(sigset_t *set, int _sig)
 static inline void sigdelset(sigset_t *set, int _sig)
 {
 	asm ("bfclr %0{%1,#1}"
-		: "+od" (*set)
+		: "+o" (*set)
 		: "id" ((_sig - 1) ^ 31)
 		: "cc");
 }
@@ -65,7 +65,7 @@ static inline int __gen_sigismember(sigset_t *set, int _sig)
 	int ret;
 	asm ("bfextu %1{%2,#1},%0"
 		: "=d" (ret)
-		: "od" (*set), "id" ((_sig-1) ^ 31)
+		: "o" (*set), "id" ((_sig-1) ^ 31)
 		: "cc");
 	return ret;
 }
diff --git a/arch/mips/cavium-octeon/executive/cvmx-l2c.c b/arch/mips/cavium-octeon/executive/cvmx-l2c.c
index d38246e33dd..9f883bf7695 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-l2c.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-l2c.c
@@ -30,6 +30,7 @@
  * measurement, and debugging facilities.
  */
 
+#include <linux/irqflags.h>
 #include <asm/octeon/cvmx.h>
 #include <asm/octeon/cvmx-l2c.h>
 #include <asm/octeon/cvmx-spinlock.h>
diff --git a/arch/mips/fw/arc/misc.c b/arch/mips/fw/arc/misc.c
index 7cf80ca2c1d..f9f5307434c 100644
--- a/arch/mips/fw/arc/misc.c
+++ b/arch/mips/fw/arc/misc.c
@@ -11,6 +11,7 @@
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/irqflags.h>
 
 #include <asm/bcache.h>
 
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index 82ad35ce2b4..46ac73abd5e 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -14,7 +14,6 @@
 #endif
 
 #include <linux/compiler.h>
-#include <linux/irqflags.h>
 #include <linux/types.h>
 #include <asm/barrier.h>
 #include <asm/byteorder.h>		/* sigh ... */
@@ -44,6 +43,24 @@
 #define smp_mb__before_clear_bit()	smp_mb__before_llsc()
 #define smp_mb__after_clear_bit()	smp_llsc_mb()
 
+
+/*
+ * These are the "slower" versions of the functions and are in bitops.c.
+ * These functions call raw_local_irq_{save,restore}().
+ */
+void __mips_set_bit(unsigned long nr, volatile unsigned long *addr);
+void __mips_clear_bit(unsigned long nr, volatile unsigned long *addr);
+void __mips_change_bit(unsigned long nr, volatile unsigned long *addr);
+int __mips_test_and_set_bit(unsigned long nr,
+			    volatile unsigned long *addr);
+int __mips_test_and_set_bit_lock(unsigned long nr,
+				 volatile unsigned long *addr);
+int __mips_test_and_clear_bit(unsigned long nr,
+			      volatile unsigned long *addr);
+int __mips_test_and_change_bit(unsigned long nr,
+			       volatile unsigned long *addr);
+
+
 /*
  * set_bit - Atomically set a bit in memory
  * @nr: the bit to set
@@ -57,7 +74,7 @@
 static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 {
 	unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
-	unsigned short bit = nr & SZLONG_MASK;
+	int bit = nr & SZLONG_MASK;
 	unsigned long temp;
 
 	if (kernel_uses_llsc && R10000_LLSC_WAR) {
@@ -92,17 +109,8 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 			: "=&r" (temp), "+m" (*m)
 			: "ir" (1UL << bit));
 		} while (unlikely(!temp));
-	} else {
-		volatile unsigned long *a = addr;
-		unsigned long mask;
-		unsigned long flags;
-
-		a += nr >> SZLONG_LOG;
-		mask = 1UL << bit;
-		raw_local_irq_save(flags);
-		*a |= mask;
-		raw_local_irq_restore(flags);
-	}
+	} else
+		__mips_set_bit(nr, addr);
 }
 
 /*
@@ -118,7 +126,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 {
 	unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
-	unsigned short bit = nr & SZLONG_MASK;
+	int bit = nr & SZLONG_MASK;
 	unsigned long temp;
 
 	if (kernel_uses_llsc && R10000_LLSC_WAR) {
@@ -153,17 +161,8 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 			: "=&r" (temp), "+m" (*m)
 			: "ir" (~(1UL << bit)));
 		} while (unlikely(!temp));
-	} else {
-		volatile unsigned long *a = addr;
-		unsigned long mask;
-		unsigned long flags;
-
-		a += nr >> SZLONG_LOG;
-		mask = 1UL << bit;
-		raw_local_irq_save(flags);
-		*a &= ~mask;
-		raw_local_irq_restore(flags);
-	}
+	} else
+		__mips_clear_bit(nr, addr);
 }
 
 /*
@@ -191,7 +190,7 @@ static inline void clear_bit_unlock(unsigned long nr, volatile unsigned long *ad
  */
 static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 {
-	unsigned short bit = nr & SZLONG_MASK;
+	int bit = nr & SZLONG_MASK;
 
 	if (kernel_uses_llsc && R10000_LLSC_WAR) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
@@ -220,17 +219,8 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 			: "=&r" (temp), "+m" (*m)
 			: "ir" (1UL << bit));
 		} while (unlikely(!temp));
-	} else {
-		volatile unsigned long *a = addr;
-		unsigned long mask;
-		unsigned long flags;
-
-		a += nr >> SZLONG_LOG;
-		mask = 1UL << bit;
-		raw_local_irq_save(flags);
-		*a ^= mask;
-		raw_local_irq_restore(flags);
-	}
+	} else
+		__mips_change_bit(nr, addr);
 }
 
 /*
@@ -244,7 +234,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 static inline int test_and_set_bit(unsigned long nr,
 	volatile unsigned long *addr)
 {
-	unsigned short bit = nr & SZLONG_MASK;
+	int bit = nr & SZLONG_MASK;
 	unsigned long res;
 
 	smp_mb__before_llsc();
@@ -281,18 +271,8 @@ static inline int test_and_set_bit(unsigned long nr,
 		} while (unlikely(!res));
 
 		res = temp & (1UL << bit);
-	} else {
-		volatile unsigned long *a = addr;
-		unsigned long mask;
-		unsigned long flags;
-
-		a += nr >> SZLONG_LOG;
-		mask = 1UL << bit;
-		raw_local_irq_save(flags);
-		res = (mask & *a);
-		*a |= mask;
-		raw_local_irq_restore(flags);
-	}
+	} else
+		res = __mips_test_and_set_bit(nr, addr);
 
 	smp_llsc_mb();
 
@@ -310,7 +290,7 @@ static inline int test_and_set_bit(unsigned long nr,
 static inline int test_and_set_bit_lock(unsigned long nr,
 	volatile unsigned long *addr)
 {
-	unsigned short bit = nr & SZLONG_MASK;
+	int bit = nr & SZLONG_MASK;
 	unsigned long res;
 
 	if (kernel_uses_llsc && R10000_LLSC_WAR) {
@@ -345,18 +325,8 @@ static inline int test_and_set_bit_lock(unsigned long nr,
 		} while (unlikely(!res));
 
 		res = temp & (1UL << bit);
-	} else {
-		volatile unsigned long *a = addr;
-		unsigned long mask;
-		unsigned long flags;
-
-		a += nr >> SZLONG_LOG;
-		mask = 1UL << bit;
-		raw_local_irq_save(flags);
-		res = (mask & *a);
-		*a |= mask;
-		raw_local_irq_restore(flags);
-	}
+	} else
+		res = __mips_test_and_set_bit_lock(nr, addr);
 
 	smp_llsc_mb();
 
@@ -373,7 +343,7 @@ static inline int test_and_set_bit_lock(unsigned long nr,
 static inline int test_and_clear_bit(unsigned long nr,
 	volatile unsigned long *addr)
 {
-	unsigned short bit = nr & SZLONG_MASK;
+	int bit = nr & SZLONG_MASK;
 	unsigned long res;
 
 	smp_mb__before_llsc();
@@ -428,18 +398,8 @@ static inline int test_and_clear_bit(unsigned long nr,
 		} while (unlikely(!res));
 
 		res = temp & (1UL << bit);
-	} else {
-		volatile unsigned long *a = addr;
-		unsigned long mask;
-		unsigned long flags;
-
-		a += nr >> SZLONG_LOG;
-		mask = 1UL << bit;
-		raw_local_irq_save(flags);
-		res = (mask & *a);
-		*a &= ~mask;
-		raw_local_irq_restore(flags);
-	}
+	} else
+		res = __mips_test_and_clear_bit(nr, addr);
 
 	smp_llsc_mb();
 
@@ -457,7 +417,7 @@ static inline int test_and_clear_bit(unsigned long nr,
 static inline int test_and_change_bit(unsigned long nr,
 	volatile unsigned long *addr)
 {
-	unsigned short bit = nr & SZLONG_MASK;
+	int bit = nr & SZLONG_MASK;
 	unsigned long res;
 
 	smp_mb__before_llsc();
@@ -494,18 +454,8 @@ static inline int test_and_change_bit(unsigned long nr,
 		} while (unlikely(!res));
 
 		res = temp & (1UL << bit);
-	} else {
-		volatile unsigned long *a = addr;
-		unsigned long mask;
-		unsigned long flags;
-
-		a += nr >> SZLONG_LOG;
-		mask = 1UL << bit;
-		raw_local_irq_save(flags);
-		res = (mask & *a);
-		*a ^= mask;
-		raw_local_irq_restore(flags);
-	}
+	} else
+		res = __mips_test_and_change_bit(nr, addr);
 
 	smp_llsc_mb();
 
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 58277e0e9cd..3c5d1464b7b 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -290,7 +290,7 @@ struct compat_shmid64_ds {
 
 static inline int is_compat_task(void)
 {
-	return test_thread_flag(TIF_32BIT);
+	return test_thread_flag(TIF_32BIT_ADDR);
 }
 
 #endif /* _ASM_COMPAT_H */
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 29d9c23c20c..ff2e0345e01 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -15,6 +15,7 @@
 #include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
+#include <linux/irqflags.h>
 
 #include <asm/addrspace.h>
 #include <asm/bug.h>
diff --git a/arch/mips/include/asm/irqflags.h b/arch/mips/include/asm/irqflags.h
index 309cbcd6909..9f3384c789d 100644
--- a/arch/mips/include/asm/irqflags.h
+++ b/arch/mips/include/asm/irqflags.h
@@ -16,83 +16,13 @@
 #include <linux/compiler.h>
 #include <asm/hazards.h>
 
-__asm__(
-	"	.macro	arch_local_irq_enable				\n"
-	"	.set	push						\n"
-	"	.set	reorder						\n"
-	"	.set	noat						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"	mfc0	$1, $2, 1	# SMTC - clear TCStatus.IXMT	\n"
-	"	ori	$1, 0x400					\n"
-	"	xori	$1, 0x400					\n"
-	"	mtc0	$1, $2, 1					\n"
-#elif defined(CONFIG_CPU_MIPSR2)
-	"	ei							\n"
-#else
-	"	mfc0	$1,$12						\n"
-	"	ori	$1,0x1f						\n"
-	"	xori	$1,0x1e						\n"
-	"	mtc0	$1,$12						\n"
-#endif
-	"	irq_enable_hazard					\n"
-	"	.set	pop						\n"
-	"	.endm");
+#if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_MIPS_MT_SMTC)
 
-extern void smtc_ipi_replay(void);
-
-static inline void arch_local_irq_enable(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-	/*
-	 * SMTC kernel needs to do a software replay of queued
-	 * IPIs, at the cost of call overhead on each local_irq_enable()
-	 */
-	smtc_ipi_replay();
-#endif
-	__asm__ __volatile__(
-		"arch_local_irq_enable"
-		: /* no outputs */
-		: /* no inputs */
-		: "memory");
-}
-
-
-/*
- * For cli() we have to insert nops to make sure that the new value
- * has actually arrived in the status register before the end of this
- * macro.
- * R4000/R4400 need three nops, the R4600 two nops and the R10000 needs
- * no nops at all.
- */
-/*
- * For TX49, operating only IE bit is not enough.
- *
- * If mfc0 $12 follows store and the mfc0 is last instruction of a
- * page and fetching the next instruction causes TLB miss, the result
- * of the mfc0 might wrongly contain EXL bit.
- *
- * ERT-TX49H2-027, ERT-TX49H3-012, ERT-TX49HL3-006, ERT-TX49H4-008
- *
- * Workaround: mask EXL bit of the result or place a nop before mfc0.
- */
 __asm__(
 	"	.macro	arch_local_irq_disable\n"
 	"	.set	push						\n"
 	"	.set	noat						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"	mfc0	$1, $2, 1					\n"
-	"	ori	$1, 0x400					\n"
-	"	.set	noreorder					\n"
-	"	mtc0	$1, $2, 1					\n"
-#elif defined(CONFIG_CPU_MIPSR2)
 	"	di							\n"
-#else
-	"	mfc0	$1,$12						\n"
-	"	ori	$1,0x1f						\n"
-	"	xori	$1,0x1f						\n"
-	"	.set	noreorder					\n"
-	"	mtc0	$1,$12						\n"
-#endif
 	"	irq_disable_hazard					\n"
 	"	.set	pop						\n"
 	"	.endm							\n");
@@ -106,46 +36,14 @@ static inline void arch_local_irq_disable(void)
 		: "memory");
 }
 
-__asm__(
-	"	.macro	arch_local_save_flags flags			\n"
-	"	.set	push						\n"
-	"	.set	reorder						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"	mfc0	\\flags, $2, 1					\n"
-#else
-	"	mfc0	\\flags, $12					\n"
-#endif
-	"	.set	pop						\n"
-	"	.endm							\n");
-
-static inline unsigned long arch_local_save_flags(void)
-{
-	unsigned long flags;
-	asm volatile("arch_local_save_flags %0" : "=r" (flags));
-	return flags;
-}
 
 __asm__(
 	"	.macro	arch_local_irq_save result			\n"
 	"	.set	push						\n"
 	"	.set	reorder						\n"
 	"	.set	noat						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"	mfc0	\\result, $2, 1					\n"
-	"	ori	$1, \\result, 0x400				\n"
-	"	.set	noreorder					\n"
-	"	mtc0	$1, $2, 1					\n"
-	"	andi	\\result, \\result, 0x400			\n"
-#elif defined(CONFIG_CPU_MIPSR2)
 	"	di	\\result					\n"
 	"	andi	\\result, 1					\n"
-#else
-	"	mfc0	\\result, $12					\n"
-	"	ori	$1, \\result, 0x1f				\n"
-	"	xori	$1, 0x1f					\n"
-	"	.set	noreorder					\n"
-	"	mtc0	$1, $12						\n"
-#endif
 	"	irq_disable_hazard					\n"
 	"	.set	pop						\n"
 	"	.endm							\n");
@@ -160,61 +58,37 @@ static inline unsigned long arch_local_irq_save(void)
 	return flags;
 }
 
+
 __asm__(
 	"	.macro	arch_local_irq_restore flags			\n"
 	"	.set	push						\n"
 	"	.set	noreorder					\n"
 	"	.set	noat						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"mfc0	$1, $2, 1						\n"
-	"andi	\\flags, 0x400						\n"
-	"ori	$1, 0x400						\n"
-	"xori	$1, 0x400						\n"
-	"or	\\flags, $1						\n"
-	"mtc0	\\flags, $2, 1						\n"
-#elif defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU)
+#if defined(CONFIG_IRQ_CPU)
 	/*
 	 * Slow, but doesn't suffer from a relatively unlikely race
 	 * condition we're having since days 1.
 	 */
 	"	beqz	\\flags, 1f					\n"
-	"	 di							\n"
+	"	di							\n"
 	"	ei							\n"
 	"1:								\n"
-#elif defined(CONFIG_CPU_MIPSR2)
+#else
 	/*
 	 * Fast, dangerous.  Life is fun, life is good.
 	 */
 	"	mfc0	$1, $12						\n"
 	"	ins	$1, \\flags, 0, 1				\n"
 	"	mtc0	$1, $12						\n"
-#else
-	"	mfc0	$1, $12						\n"
-	"	andi	\\flags, 1					\n"
-	"	ori	$1, 0x1f					\n"
-	"	xori	$1, 0x1f					\n"
-	"	or	\\flags, $1					\n"
-	"	mtc0	\\flags, $12					\n"
 #endif
 	"	irq_disable_hazard					\n"
 	"	.set	pop						\n"
 	"	.endm							\n");
 
-
 static inline void arch_local_irq_restore(unsigned long flags)
 {
 	unsigned long __tmp1;
 
-#ifdef CONFIG_MIPS_MT_SMTC
-	/*
-	 * SMTC kernel needs to do a software replay of queued
-	 * IPIs, at the cost of branch and call overhead on each
-	 * local_irq_restore()
-	 */
-	if (unlikely(!(flags & 0x0400)))
-		smtc_ipi_replay();
-#endif
-
 	__asm__ __volatile__(
 		"arch_local_irq_restore\t%0"
 		: "=r" (__tmp1)
@@ -232,6 +106,75 @@ static inline void __arch_local_irq_restore(unsigned long flags)
 		: "0" (flags)
 		: "memory");
 }
+#else
+/* Functions that require preempt_{dis,en}able() are in mips-atomic.c */
+void arch_local_irq_disable(void);
+unsigned long arch_local_irq_save(void);
+void arch_local_irq_restore(unsigned long flags);
+void __arch_local_irq_restore(unsigned long flags);
+#endif /* if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_MIPS_MT_SMTC) */
+
+
+__asm__(
+	"	.macro	arch_local_irq_enable				\n"
+	"	.set	push						\n"
+	"	.set	reorder						\n"
+	"	.set	noat						\n"
+#ifdef CONFIG_MIPS_MT_SMTC
+	"	mfc0	$1, $2, 1	# SMTC - clear TCStatus.IXMT	\n"
+	"	ori	$1, 0x400					\n"
+	"	xori	$1, 0x400					\n"
+	"	mtc0	$1, $2, 1					\n"
+#elif defined(CONFIG_CPU_MIPSR2)
+	"	ei							\n"
+#else
+	"	mfc0	$1,$12						\n"
+	"	ori	$1,0x1f						\n"
+	"	xori	$1,0x1e						\n"
+	"	mtc0	$1,$12						\n"
+#endif
+	"	irq_enable_hazard					\n"
+	"	.set	pop						\n"
+	"	.endm");
+
+extern void smtc_ipi_replay(void);
+
+static inline void arch_local_irq_enable(void)
+{
+#ifdef CONFIG_MIPS_MT_SMTC
+	/*
+	 * SMTC kernel needs to do a software replay of queued
+	 * IPIs, at the cost of call overhead on each local_irq_enable()
+	 */
+	smtc_ipi_replay();
+#endif
+	__asm__ __volatile__(
+		"arch_local_irq_enable"
+		: /* no outputs */
+		: /* no inputs */
+		: "memory");
+}
+
+
+__asm__(
+	"	.macro	arch_local_save_flags flags			\n"
+	"	.set	push						\n"
+	"	.set	reorder						\n"
+#ifdef CONFIG_MIPS_MT_SMTC
+	"	mfc0	\\flags, $2, 1					\n"
+#else
+	"	mfc0	\\flags, $12					\n"
+#endif
+	"	.set	pop						\n"
+	"	.endm							\n");
+
+static inline unsigned long arch_local_save_flags(void)
+{
+	unsigned long flags;
+	asm volatile("arch_local_save_flags %0" : "=r" (flags));
+	return flags;
+}
+
 
 static inline int arch_irqs_disabled_flags(unsigned long flags)
 {
@@ -245,7 +188,7 @@ static inline int arch_irqs_disabled_flags(unsigned long flags)
 #endif
 }
 
-#endif
+#endif /* #ifndef __ASSEMBLY__ */
 
 /*
  * Do the CPU's IRQ-state tracing from assembly code.
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 8debe9e9175..18806a52061 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -112,12 +112,6 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #define TIF_LOAD_WATCH		25	/* If set, load watch registers */
 #define TIF_SYSCALL_TRACE	31	/* syscall trace active */
 
-#ifdef CONFIG_MIPS32_O32
-#define TIF_32BIT TIF_32BIT_REGS
-#elif defined(CONFIG_MIPS32_N32)
-#define TIF_32BIT _TIF_32BIT_ADDR
-#endif /* CONFIG_MIPS32_O32 */
-
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index a53f8ec37aa..290dc6a1d7a 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -79,7 +79,7 @@ static struct resource data_resource = { .name = "Kernel data", };
 void __init add_memory_region(phys_t start, phys_t size, long type)
 {
 	int x = boot_mem_map.nr_map;
-	struct boot_mem_map_entry *prev = boot_mem_map.map + x - 1;
+	int i;
 
 	/* Sanity check */
 	if (start + size < start) {
@@ -88,15 +88,29 @@ void __init add_memory_region(phys_t start, phys_t size, long type)
 	}
 
 	/*
-	 * Try to merge with previous entry if any.  This is far less than
-	 * perfect but is sufficient for most real world cases.
+	 * Try to merge with existing entry, if any.
 	 */
-	if (x && prev->addr + prev->size == start && prev->type == type) {
-		prev->size += size;
+	for (i = 0; i < boot_mem_map.nr_map; i++) {
+		struct boot_mem_map_entry *entry = boot_mem_map.map + i;
+		unsigned long top;
+
+		if (entry->type != type)
+			continue;
+
+		if (start + size < entry->addr)
+			continue;			/* no overlap */
+
+		if (entry->addr + entry->size < start)
+			continue;			/* no overlap */
+
+		top = max(entry->addr + entry->size, start + size);
+		entry->addr = min(entry->addr, start);
+		entry->size = top - entry->addr;
+
 		return;
 	}
 
-	if (x == BOOT_MEM_MAP_MAX) {
+	if (boot_mem_map.nr_map == BOOT_MEM_MAP_MAX) {
 		pr_err("Ooops! Too many entries in the memory map!\n");
 		return;
 	}
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index c4a82e841c7..eeddc58802e 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -2,8 +2,9 @@
 # Makefile for MIPS-specific library files..
 #
 
-lib-y	+= csum_partial.o delay.o memcpy.o memset.o \
-	   strlen_user.o strncpy_user.o strnlen_user.o uncached.o
+lib-y	+= bitops.o csum_partial.o delay.o memcpy.o memset.o \
+	   mips-atomic.o strlen_user.o strncpy_user.o \
+	   strnlen_user.o uncached.o
 
 obj-y			+= iomap.o
 obj-$(CONFIG_PCI)	+= iomap-pci.o
diff --git a/arch/mips/lib/bitops.c b/arch/mips/lib/bitops.c
new file mode 100644
index 00000000000..239a9c957b0
--- /dev/null
+++ b/arch/mips/lib/bitops.c
@@ -0,0 +1,179 @@
+/*
+ * 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) 1994-1997, 99, 2000, 06, 07 Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (c) 1999, 2000  Silicon Graphics, Inc.
+ */
+#include <linux/bitops.h>
+#include <linux/irqflags.h>
+#include <linux/export.h>
+
+
+/**
+ * __mips_set_bit - Atomically set a bit in memory.  This is called by
+ * set_bit() if it cannot find a faster solution.
+ * @nr: the bit to set
+ * @addr: the address to start counting from
+ */
+void __mips_set_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	volatile unsigned long *a = addr;
+	unsigned bit = nr & SZLONG_MASK;
+	unsigned long mask;
+	unsigned long flags;
+
+	a += nr >> SZLONG_LOG;
+	mask = 1UL << bit;
+	raw_local_irq_save(flags);
+	*a |= mask;
+	raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL(__mips_set_bit);
+
+
+/**
+ * __mips_clear_bit - Clears a bit in memory.  This is called by clear_bit() if
+ * it cannot find a faster solution.
+ * @nr: Bit to clear
+ * @addr: Address to start counting from
+ */
+void __mips_clear_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	volatile unsigned long *a = addr;
+	unsigned bit = nr & SZLONG_MASK;
+	unsigned long mask;
+	unsigned long flags;
+
+	a += nr >> SZLONG_LOG;
+	mask = 1UL << bit;
+	raw_local_irq_save(flags);
+	*a &= ~mask;
+	raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL(__mips_clear_bit);
+
+
+/**
+ * __mips_change_bit - Toggle a bit in memory.  This is called by change_bit()
+ * if it cannot find a faster solution.
+ * @nr: Bit to change
+ * @addr: Address to start counting from
+ */
+void __mips_change_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	volatile unsigned long *a = addr;
+	unsigned bit = nr & SZLONG_MASK;
+	unsigned long mask;
+	unsigned long flags;
+
+	a += nr >> SZLONG_LOG;
+	mask = 1UL << bit;
+	raw_local_irq_save(flags);
+	*a ^= mask;
+	raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL(__mips_change_bit);
+
+
+/**
+ * __mips_test_and_set_bit - Set a bit and return its old value.  This is
+ * called by test_and_set_bit() if it cannot find a faster solution.
+ * @nr: Bit to set
+ * @addr: Address to count from
+ */
+int __mips_test_and_set_bit(unsigned long nr,
+			    volatile unsigned long *addr)
+{
+	volatile unsigned long *a = addr;
+	unsigned bit = nr & SZLONG_MASK;
+	unsigned long mask;
+	unsigned long flags;
+	unsigned long res;
+
+	a += nr >> SZLONG_LOG;
+	mask = 1UL << bit;
+	raw_local_irq_save(flags);
+	res = (mask & *a);
+	*a |= mask;
+	raw_local_irq_restore(flags);
+	return res;
+}
+EXPORT_SYMBOL(__mips_test_and_set_bit);
+
+
+/**
+ * __mips_test_and_set_bit_lock - Set a bit and return its old value.  This is
+ * called by test_and_set_bit_lock() if it cannot find a faster solution.
+ * @nr: Bit to set
+ * @addr: Address to count from
+ */
+int __mips_test_and_set_bit_lock(unsigned long nr,
+				 volatile unsigned long *addr)
+{
+	volatile unsigned long *a = addr;
+	unsigned bit = nr & SZLONG_MASK;
+	unsigned long mask;
+	unsigned long flags;
+	unsigned long res;
+
+	a += nr >> SZLONG_LOG;
+	mask = 1UL << bit;
+	raw_local_irq_save(flags);
+	res = (mask & *a);
+	*a |= mask;
+	raw_local_irq_restore(flags);
+	return res;
+}
+EXPORT_SYMBOL(__mips_test_and_set_bit_lock);
+
+
+/**
+ * __mips_test_and_clear_bit - Clear a bit and return its old value.  This is
+ * called by test_and_clear_bit() if it cannot find a faster solution.
+ * @nr: Bit to clear
+ * @addr: Address to count from
+ */
+int __mips_test_and_clear_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	volatile unsigned long *a = addr;
+	unsigned bit = nr & SZLONG_MASK;
+	unsigned long mask;
+	unsigned long flags;
+	unsigned long res;
+
+	a += nr >> SZLONG_LOG;
+	mask = 1UL << bit;
+	raw_local_irq_save(flags);
+	res = (mask & *a);
+	*a &= ~mask;
+	raw_local_irq_restore(flags);
+	return res;
+}
+EXPORT_SYMBOL(__mips_test_and_clear_bit);
+
+
+/**
+ * __mips_test_and_change_bit - Change a bit and return its old value.  This is
+ * called by test_and_change_bit() if it cannot find a faster solution.
+ * @nr: Bit to change
+ * @addr: Address to count from
+ */
+int __mips_test_and_change_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	volatile unsigned long *a = addr;
+	unsigned bit = nr & SZLONG_MASK;
+	unsigned long mask;
+	unsigned long flags;
+	unsigned long res;
+
+	a += nr >> SZLONG_LOG;
+	mask = 1UL << bit;
+	raw_local_irq_save(flags);
+	res = (mask & *a);
+	*a ^= mask;
+	raw_local_irq_restore(flags);
+	return res;
+}
+EXPORT_SYMBOL(__mips_test_and_change_bit);
diff --git a/arch/mips/lib/mips-atomic.c b/arch/mips/lib/mips-atomic.c
new file mode 100644
index 00000000000..cd160be3ce4
--- /dev/null
+++ b/arch/mips/lib/mips-atomic.c
@@ -0,0 +1,176 @@
+/*
+ * 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) 1994, 95, 96, 97, 98, 99, 2003 by Ralf Baechle
+ * Copyright (C) 1996 by Paul M. Antoine
+ * Copyright (C) 1999 Silicon Graphics
+ * Copyright (C) 2000 MIPS Technologies, Inc.
+ */
+#include <asm/irqflags.h>
+#include <asm/hazards.h>
+#include <linux/compiler.h>
+#include <linux/preempt.h>
+#include <linux/export.h>
+
+#if !defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_MIPS_MT_SMTC)
+
+/*
+ * For cli() we have to insert nops to make sure that the new value
+ * has actually arrived in the status register before the end of this
+ * macro.
+ * R4000/R4400 need three nops, the R4600 two nops and the R10000 needs
+ * no nops at all.
+ */
+/*
+ * For TX49, operating only IE bit is not enough.
+ *
+ * If mfc0 $12 follows store and the mfc0 is last instruction of a
+ * page and fetching the next instruction causes TLB miss, the result
+ * of the mfc0 might wrongly contain EXL bit.
+ *
+ * ERT-TX49H2-027, ERT-TX49H3-012, ERT-TX49HL3-006, ERT-TX49H4-008
+ *
+ * Workaround: mask EXL bit of the result or place a nop before mfc0.
+ */
+__asm__(
+	"	.macro	arch_local_irq_disable\n"
+	"	.set	push						\n"
+	"	.set	noat						\n"
+#ifdef CONFIG_MIPS_MT_SMTC
+	"	mfc0	$1, $2, 1					\n"
+	"	ori	$1, 0x400					\n"
+	"	.set	noreorder					\n"
+	"	mtc0	$1, $2, 1					\n"
+#elif defined(CONFIG_CPU_MIPSR2)
+	/* see irqflags.h for inline function */
+#else
+	"	mfc0	$1,$12						\n"
+	"	ori	$1,0x1f						\n"
+	"	xori	$1,0x1f						\n"
+	"	.set	noreorder					\n"
+	"	mtc0	$1,$12						\n"
+#endif
+	"	irq_disable_hazard					\n"
+	"	.set	pop						\n"
+	"	.endm							\n");
+
+notrace void arch_local_irq_disable(void)
+{
+	preempt_disable();
+	__asm__ __volatile__(
+		"arch_local_irq_disable"
+		: /* no outputs */
+		: /* no inputs */
+		: "memory");
+	preempt_enable();
+}
+EXPORT_SYMBOL(arch_local_irq_disable);
+
+
+__asm__(
+	"	.macro	arch_local_irq_save result			\n"
+	"	.set	push						\n"
+	"	.set	reorder						\n"
+	"	.set	noat						\n"
+#ifdef CONFIG_MIPS_MT_SMTC
+	"	mfc0	\\result, $2, 1					\n"
+	"	ori	$1, \\result, 0x400				\n"
+	"	.set	noreorder					\n"
+	"	mtc0	$1, $2, 1					\n"
+	"	andi	\\result, \\result, 0x400			\n"
+#elif defined(CONFIG_CPU_MIPSR2)
+	/* see irqflags.h for inline function */
+#else
+	"	mfc0	\\result, $12					\n"
+	"	ori	$1, \\result, 0x1f				\n"
+	"	xori	$1, 0x1f					\n"
+	"	.set	noreorder					\n"
+	"	mtc0	$1, $12						\n"
+#endif
+	"	irq_disable_hazard					\n"
+	"	.set	pop						\n"
+	"	.endm							\n");
+
+notrace unsigned long arch_local_irq_save(void)
+{
+	unsigned long flags;
+	preempt_disable();
+	asm volatile("arch_local_irq_save\t%0"
+		     : "=r" (flags)
+		     : /* no inputs */
+		     : "memory");
+	preempt_enable();
+	return flags;
+}
+EXPORT_SYMBOL(arch_local_irq_save);
+
+
+__asm__(
+	"	.macro	arch_local_irq_restore flags			\n"
+	"	.set	push						\n"
+	"	.set	noreorder					\n"
+	"	.set	noat						\n"
+#ifdef CONFIG_MIPS_MT_SMTC
+	"mfc0	$1, $2, 1						\n"
+	"andi	\\flags, 0x400						\n"
+	"ori	$1, 0x400						\n"
+	"xori	$1, 0x400						\n"
+	"or	\\flags, $1						\n"
+	"mtc0	\\flags, $2, 1						\n"
+#elif defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU)
+	/* see irqflags.h for inline function */
+#elif defined(CONFIG_CPU_MIPSR2)
+	/* see irqflags.h for inline function */
+#else
+	"	mfc0	$1, $12						\n"
+	"	andi	\\flags, 1					\n"
+	"	ori	$1, 0x1f					\n"
+	"	xori	$1, 0x1f					\n"
+	"	or	\\flags, $1					\n"
+	"	mtc0	\\flags, $12					\n"
+#endif
+	"	irq_disable_hazard					\n"
+	"	.set	pop						\n"
+	"	.endm							\n");
+
+notrace void arch_local_irq_restore(unsigned long flags)
+{
+	unsigned long __tmp1;
+
+#ifdef CONFIG_MIPS_MT_SMTC
+	/*
+	 * SMTC kernel needs to do a software replay of queued
+	 * IPIs, at the cost of branch and call overhead on each
+	 * local_irq_restore()
+	 */
+	if (unlikely(!(flags & 0x0400)))
+		smtc_ipi_replay();
+#endif
+	preempt_disable();
+	__asm__ __volatile__(
+		"arch_local_irq_restore\t%0"
+		: "=r" (__tmp1)
+		: "0" (flags)
+		: "memory");
+	preempt_enable();
+}
+EXPORT_SYMBOL(arch_local_irq_restore);
+
+
+notrace void __arch_local_irq_restore(unsigned long flags)
+{
+	unsigned long __tmp1;
+
+	preempt_disable();
+	__asm__ __volatile__(
+		"arch_local_irq_restore\t%0"
+		: "=r" (__tmp1)
+		: "0" (flags)
+		: "memory");
+	preempt_enable();
+}
+EXPORT_SYMBOL(__arch_local_irq_restore);
+
+#endif /* !defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_MIPS_MT_SMTC) */
diff --git a/arch/mips/mti-malta/malta-platform.c b/arch/mips/mti-malta/malta-platform.c
index 80562b81f0f..74732177851 100644
--- a/arch/mips/mti-malta/malta-platform.c
+++ b/arch/mips/mti-malta/malta-platform.c
@@ -29,6 +29,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/platform_device.h>
+#include <asm/mips-boards/maltaint.h>
 #include <mtd/mtd-abi.h>
 
 #define SMC_PORT(base, int)						\
@@ -48,7 +49,7 @@ static struct plat_serial8250_port uart8250_data[] = {
 	SMC_PORT(0x2F8, 3),
 	{
 		.mapbase	= 0x1f000900,	/* The CBUS UART */
-		.irq		= MIPS_CPU_IRQ_BASE + 2,
+		.irq		= MIPS_CPU_IRQ_BASE + MIPSCPU_INT_MB2,
 		.uartclk	= 3686400,	/* Twice the usual clk! */
 		.iotype		= UPIO_MEM32,
 		.flags		= CBUS_UART_FLAGS,
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index fd49aeda9eb..5dede04f2f3 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -65,7 +65,8 @@ put_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
 {
 	compat_sigset_t s;
 
-	if (sz != sizeof *set) panic("put_sigset32()");
+	if (sz != sizeof *set)
+		return -EINVAL;
 	sigset_64to32(&s, set);
 
 	return copy_to_user(up, &s, sizeof s);
@@ -77,7 +78,8 @@ get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
 	compat_sigset_t s;
 	int r;
 
-	if (sz != sizeof *set) panic("put_sigset32()");
+	if (sz != sizeof *set)
+		return -EINVAL;
 
 	if ((r = copy_from_user(&s, up, sz)) == 0) {
 		sigset_32to64(set, &s);
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 7426e40699b..f76c10863c6 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -73,6 +73,8 @@ static unsigned long get_shared_area(struct address_space *mapping,
 	struct vm_area_struct *vma;
 	int offset = mapping ? get_offset(mapping) : 0;
 
+	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
+
 	addr = DCACHE_ALIGN(addr - offset) + offset;
 
 	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
diff --git a/arch/powerpc/boot/dts/mpc5200b.dtsi b/arch/powerpc/boot/dts/mpc5200b.dtsi
index 7ab286ab530..39ed65a44c5 100644
--- a/arch/powerpc/boot/dts/mpc5200b.dtsi
+++ b/arch/powerpc/boot/dts/mpc5200b.dtsi
@@ -231,6 +231,12 @@
 			interrupts = <2 7 0>;
 		};
 
+		sclpc@3c00 {
+			compatible = "fsl,mpc5200-lpbfifo";
+			reg = <0x3c00 0x60>;
+			interrupts = <2 23 0>;
+		};
+
 		i2c@3d00 {
 			#address-cells = <1>;
 			#size-cells = <0>;
diff --git a/arch/powerpc/boot/dts/o2d.dtsi b/arch/powerpc/boot/dts/o2d.dtsi
index 3444eb8f0ad..24f66803929 100644
--- a/arch/powerpc/boot/dts/o2d.dtsi
+++ b/arch/powerpc/boot/dts/o2d.dtsi
@@ -86,12 +86,6 @@
 				reg = <0>;
 			};
 		};
-
-		sclpc@3c00 {
-			compatible = "fsl,mpc5200-lpbfifo";
-			reg = <0x3c00 0x60>;
-			interrupts = <3 23 0>;
-		};
 	};
 
 	localbus {
diff --git a/arch/powerpc/boot/dts/pcm030.dts b/arch/powerpc/boot/dts/pcm030.dts
index 9e354997eb7..96512c05803 100644
--- a/arch/powerpc/boot/dts/pcm030.dts
+++ b/arch/powerpc/boot/dts/pcm030.dts
@@ -59,7 +59,7 @@
 			#gpio-cells = <2>;
 		};
 
-		psc@2000 { /* PSC1 in ac97 mode */
+		audioplatform: psc@2000 { /* PSC1 in ac97 mode */
 			compatible = "mpc5200b-psc-ac97","fsl,mpc5200b-psc-ac97";
 			cell-index = <0>;
 		};
@@ -134,4 +134,9 @@
 	localbus {
 		status = "disabled";
 	};
+
+	sound {
+		compatible = "phytec,pcm030-audio-fabric";
+		asoc-platform = <&audioplatform>;
+	};
 };
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index 8520b58a5e9..b89ef65392d 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -372,10 +372,11 @@ static int mpc52xx_irqhost_map(struct irq_domain *h, unsigned int virq,
 	case MPC52xx_IRQ_L1_MAIN: irqchip = &mpc52xx_main_irqchip; break;
 	case MPC52xx_IRQ_L1_PERP: irqchip = &mpc52xx_periph_irqchip; break;
 	case MPC52xx_IRQ_L1_SDMA: irqchip = &mpc52xx_sdma_irqchip; break;
-	default:
-		pr_err("%s: invalid irq: virq=%i, l1=%i, l2=%i\n",
-		       __func__, virq, l1irq, l2irq);
-		return -EINVAL;
+	case MPC52xx_IRQ_L1_CRIT:
+		pr_warn("%s: Critical IRQ #%d is unsupported! Nopping it.\n",
+			__func__, l2irq);
+		irq_set_chip(virq, &no_irq_chip);
+		return 0;
 	}
 
 	irq_set_chip_and_handler(virq, irqchip, handle_level_irq);
diff --git a/arch/powerpc/platforms/pseries/eeh_pe.c b/arch/powerpc/platforms/pseries/eeh_pe.c
index 797cd181dc3..d16c8ded108 100644
--- a/arch/powerpc/platforms/pseries/eeh_pe.c
+++ b/arch/powerpc/platforms/pseries/eeh_pe.c
@@ -449,7 +449,7 @@ int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe)
 			if (list_empty(&pe->edevs)) {
 				cnt = 0;
 				list_for_each_entry(child, &pe->child_list, child) {
-					if (!(pe->type & EEH_PE_INVALID)) {
+					if (!(child->type & EEH_PE_INVALID)) {
 						cnt++;
 						break;
 					}
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index d19f4977c83..e5b08472313 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -220,7 +220,8 @@ static struct device_node *find_pe_dn(struct pci_dev *dev, int *total)
 
 	/* Get the top level device in the PE */
 	edev = of_node_to_eeh_dev(dn);
-	edev = list_first_entry(&edev->pe->edevs, struct eeh_dev, list);
+	if (edev->pe)
+		edev = list_first_entry(&edev->pe->edevs, struct eeh_dev, list);
 	dn = eeh_dev_to_of_node(edev);
 	if (!dn)
 		return NULL;
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 5dba755a43e..d385f396dfe 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -96,6 +96,7 @@ config S390
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_CMPXCHG_LOCAL
 	select HAVE_CMPXCHG_DOUBLE
+	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select VIRT_CPU_ACCOUNTING
 	select ARCH_DISCARD_MEMBLOCK
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index a34a9d612fc..18cd6b59265 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -20,7 +20,7 @@
 #define PSW32_MASK_CC		0x00003000UL
 #define PSW32_MASK_PM		0x00000f00UL
 
-#define PSW32_MASK_USER		0x00003F00UL
+#define PSW32_MASK_USER		0x0000FF00UL
 
 #define PSW32_ADDR_AMODE	0x80000000UL
 #define PSW32_ADDR_INSN		0x7FFFFFFFUL
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index 9ca30538376..9935cbd6a46 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -8,6 +8,9 @@ struct cpu;
 
 #ifdef CONFIG_SCHED_BOOK
 
+extern unsigned char cpu_socket_id[NR_CPUS];
+#define topology_physical_package_id(cpu) (cpu_socket_id[cpu])
+
 extern unsigned char cpu_core_id[NR_CPUS];
 extern cpumask_t cpu_core_map[NR_CPUS];
 
diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h
index 705588a16d7..a5ca214b34f 100644
--- a/arch/s390/include/uapi/asm/ptrace.h
+++ b/arch/s390/include/uapi/asm/ptrace.h
@@ -239,7 +239,7 @@ typedef struct
 #define PSW_MASK_EA		0x00000000UL
 #define PSW_MASK_BA		0x00000000UL
 
-#define PSW_MASK_USER		0x00003F00UL
+#define PSW_MASK_USER		0x0000FF00UL
 
 #define PSW_ADDR_AMODE		0x80000000UL
 #define PSW_ADDR_INSN		0x7FFFFFFFUL
@@ -269,7 +269,7 @@ typedef struct
 #define PSW_MASK_EA		0x0000000100000000UL
 #define PSW_MASK_BA		0x0000000080000000UL
 
-#define PSW_MASK_USER		0x00003F8180000000UL
+#define PSW_MASK_USER		0x0000FF8180000000UL
 
 #define PSW_ADDR_AMODE		0x0000000000000000UL
 #define PSW_ADDR_INSN		0xFFFFFFFFFFFFFFFFUL
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index a1e8a8694bb..593fcc9253f 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -309,6 +309,10 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 		(__u64)(regs32.psw.mask & PSW32_MASK_USER) << 32 |
 		(__u64)(regs32.psw.addr & PSW32_ADDR_AMODE);
+	/* Check for invalid user address space control. */
+	if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC))
+		regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) |
+			(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (__u64)(regs32.psw.addr & PSW32_ADDR_INSN);
 	for (i = 0; i < NUM_GPRS; i++)
 		regs->gprs[i] = (__u64) regs32.gprs[i];
@@ -481,7 +485,10 @@ static int setup_frame32(int sig, struct k_sigaction *ka,
 
 	/* Set up registers for signal handler */
 	regs->gprs[15] = (__force __u64) frame;
-	regs->psw.mask |= PSW_MASK_BA;		/* force amode 31 */
+	/* Force 31 bit amode and default user address space control. */
+	regs->psw.mask = PSW_MASK_BA |
+		(psw_user_bits & PSW_MASK_ASC) |
+		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (__force __u64) ka->sa.sa_handler;
 
 	regs->gprs[2] = map_signal(sig);
@@ -549,7 +556,10 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info,
 
 	/* Set up registers for signal handler */
 	regs->gprs[15] = (__force __u64) frame;
-	regs->psw.mask |= PSW_MASK_BA;		/* force amode 31 */
+	/* Force 31 bit amode and default user address space control. */
+	regs->psw.mask = PSW_MASK_BA |
+		(psw_user_bits & PSW_MASK_ASC) |
+		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (__u64) ka->sa.sa_handler;
 
 	regs->gprs[2] = map_signal(sig);
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index c13a2a37ef0..d1259d87507 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -136,6 +136,10 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 	/* Use regs->psw.mask instead of psw_user_bits to preserve PER bit. */
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 		(user_sregs.regs.psw.mask & PSW_MASK_USER);
+	/* Check for invalid user address space control. */
+	if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC))
+		regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) |
+			(regs->psw.mask & ~PSW_MASK_ASC);
 	/* Check for invalid amode */
 	if (regs->psw.mask & PSW_MASK_EA)
 		regs->psw.mask |= PSW_MASK_BA;
@@ -273,7 +277,10 @@ static int setup_frame(int sig, struct k_sigaction *ka,
 
 	/* Set up registers for signal handler */
 	regs->gprs[15] = (unsigned long) frame;
-	regs->psw.mask |= PSW_MASK_EA | PSW_MASK_BA;	/* 64 bit amode */
+	/* Force default amode and default user address space control. */
+	regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA |
+		(psw_user_bits & PSW_MASK_ASC) |
+		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE;
 
 	regs->gprs[2] = map_signal(sig);
@@ -346,7 +353,10 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 
 	/* Set up registers for signal handler */
 	regs->gprs[15] = (unsigned long) frame;
-	regs->psw.mask |= PSW_MASK_EA | PSW_MASK_BA;	/* 64 bit amode */
+	/* Force default amode and default user address space control. */
+	regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA |
+		(psw_user_bits & PSW_MASK_ASC) |
+		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE;
 
 	regs->gprs[2] = map_signal(sig);
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 54d93f4b681..dd55f7c2010 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -40,6 +40,7 @@ static DEFINE_SPINLOCK(topology_lock);
 static struct mask_info core_info;
 cpumask_t cpu_core_map[NR_CPUS];
 unsigned char cpu_core_id[NR_CPUS];
+unsigned char cpu_socket_id[NR_CPUS];
 
 static struct mask_info book_info;
 cpumask_t cpu_book_map[NR_CPUS];
@@ -83,11 +84,12 @@ static struct mask_info *add_cpus_to_mask(struct topology_cpu *tl_cpu,
 			cpumask_set_cpu(lcpu, &book->mask);
 			cpu_book_id[lcpu] = book->id;
 			cpumask_set_cpu(lcpu, &core->mask);
+			cpu_core_id[lcpu] = rcpu;
 			if (one_core_per_cpu) {
-				cpu_core_id[lcpu] = rcpu;
+				cpu_socket_id[lcpu] = rcpu;
 				core = core->next;
 			} else {
-				cpu_core_id[lcpu] = core->id;
+				cpu_socket_id[lcpu] = core->id;
 			}
 			smp_cpu_set_polarization(lcpu, tl_cpu->pp);
 		}
diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index 8b8285310b5..1f5315d1215 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -180,8 +180,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	addr = start;
 	len = (unsigned long) nr_pages << PAGE_SHIFT;
 	end = start + len;
-	if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
-					(void __user *)start, len)))
+	if ((end < start) || (end > TASK_SIZE))
 		return 0;
 
 	local_irq_save(flags);
@@ -229,7 +228,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	addr = start;
 	len = (unsigned long) nr_pages << PAGE_SHIFT;
 	end = start + len;
-	if (end < start)
+	if ((end < start) || (end > TASK_SIZE))
 		goto slow_irqon;
 
 	/*
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index f93003123bc..67c62578d17 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -63,10 +63,13 @@ 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 */
+/* SPARC has local implementations */
 extern int of_address_to_resource(struct device_node *dev, int index,
 				  struct resource *r);
 #define of_address_to_resource of_address_to_resource
 
+void __iomem *of_iomap(struct device_node *node, int index);
+#define of_iomap of_iomap
+
 #endif /* __KERNEL__ */
 #endif /* _SPARC_PROM_H */
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 867de2f8189..689e1ba6280 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -295,9 +295,7 @@ void do_rt_sigreturn(struct pt_regs *regs)
 		err |= restore_fpu_state(regs, fpu_save);
 
 	err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t));
-	err |= do_sigaltstack(&sf->stack, NULL, (unsigned long)sf);
-
-	if (err)
+	if (err || do_sigaltstack(&sf->stack, NULL, (unsigned long)sf) == -EFAULT)
 		goto segv;
 
 	err |= __get_user(rwin_save, &sf->rwin_save);
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index e5c5473e69c..c4fbb21e802 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -16,6 +16,8 @@ config UNICORE32
 	select ARCH_WANT_FRAME_POINTERS
 	select GENERIC_IOMAP
 	select MODULES_USE_ELF_REL
+	select GENERIC_KERNEL_THREAD
+	select GENERIC_KERNEL_EXECVE
 	help
 	  UniCore-32 is 32-bit Instruction Set Architecture,
 	  including a series of low-power-consumption RISC chip
@@ -64,6 +66,9 @@ config GENERIC_CALIBRATE_DELAY
 config ARCH_MAY_HAVE_PC_FDC
 	bool
 
+config ZONE_DMA
+	def_bool y
+
 config NEED_DMA_MAP_STATE
        def_bool y
 
@@ -216,7 +221,7 @@ config PUV3_GPIO
 	bool
 	depends on !ARCH_FPGA
 	select GENERIC_GPIO
-	select GPIO_SYSFS if EXPERIMENTAL
+	select GPIO_SYSFS
 	default y
 
 if PUV3_NB0916
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index c910c9857e1..601e92f18af 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -1,4 +1,3 @@
-include include/asm-generic/Kbuild.asm
 
 generic-y += atomic.h
 generic-y += auxvec.h
diff --git a/arch/unicore32/include/asm/bug.h b/arch/unicore32/include/asm/bug.h
index b1ff8cadb08..93a56f3e234 100644
--- a/arch/unicore32/include/asm/bug.h
+++ b/arch/unicore32/include/asm/bug.h
@@ -19,9 +19,4 @@ extern void die(const char *msg, struct pt_regs *regs, int err);
 extern void uc32_notify_die(const char *str, struct pt_regs *regs,
 		struct siginfo *info, unsigned long err, unsigned long trap);
 
-extern asmlinkage void __backtrace(void);
-extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
-
-extern void __show_regs(struct pt_regs *);
-
 #endif /* __UNICORE_BUG_H__ */
diff --git a/arch/unicore32/include/asm/cmpxchg.h b/arch/unicore32/include/asm/cmpxchg.h
index df4d5acfd19..8e797ad4fa2 100644
--- a/arch/unicore32/include/asm/cmpxchg.h
+++ b/arch/unicore32/include/asm/cmpxchg.h
@@ -35,7 +35,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
 			: "memory", "cc");
 		break;
 	default:
-		ret = __xchg_bad_pointer();
+		__xchg_bad_pointer();
 	}
 
 	return ret;
diff --git a/arch/unicore32/include/asm/kvm_para.h b/arch/unicore32/include/asm/kvm_para.h
deleted file mode 100644
index 14fab8f0b95..00000000000
--- a/arch/unicore32/include/asm/kvm_para.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kvm_para.h>
diff --git a/arch/unicore32/include/asm/processor.h b/arch/unicore32/include/asm/processor.h
index 14382cb0965..4eaa4216766 100644
--- a/arch/unicore32/include/asm/processor.h
+++ b/arch/unicore32/include/asm/processor.h
@@ -72,11 +72,6 @@ unsigned long get_wchan(struct task_struct *p);
 
 #define cpu_relax()			barrier()
 
-/*
- * Create a new kernel thread
- */
-extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
-
 #define task_pt_regs(p) \
 	((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1)
 
diff --git a/arch/unicore32/include/asm/ptrace.h b/arch/unicore32/include/asm/ptrace.h
index b9caf9b0997..726749dab52 100644
--- a/arch/unicore32/include/asm/ptrace.h
+++ b/arch/unicore32/include/asm/ptrace.h
@@ -12,80 +12,10 @@
 #ifndef __UNICORE_PTRACE_H__
 #define __UNICORE_PTRACE_H__
 
-#define PTRACE_GET_THREAD_AREA	22
-
-/*
- * PSR bits
- */
-#define USER_MODE	0x00000010
-#define REAL_MODE	0x00000011
-#define INTR_MODE	0x00000012
-#define PRIV_MODE	0x00000013
-#define ABRT_MODE	0x00000017
-#define EXTN_MODE	0x0000001b
-#define SUSR_MODE	0x0000001f
-#define MODE_MASK	0x0000001f
-#define PSR_R_BIT	0x00000040
-#define PSR_I_BIT	0x00000080
-#define PSR_V_BIT	0x10000000
-#define PSR_C_BIT	0x20000000
-#define PSR_Z_BIT	0x40000000
-#define PSR_S_BIT	0x80000000
-
-/*
- * Groups of PSR bits
- */
-#define PSR_f		0xff000000	/* Flags		*/
-#define PSR_c		0x000000ff	/* Control		*/
+#include <uapi/asm/ptrace.h>
 
 #ifndef __ASSEMBLY__
 
-/*
- * This struct defines the way the registers are stored on the
- * stack during a system call.  Note that sizeof(struct pt_regs)
- * has to be a multiple of 8.
- */
-struct pt_regs {
-	unsigned long uregs[34];
-};
-
-#define UCreg_asr		uregs[32]
-#define UCreg_pc		uregs[31]
-#define UCreg_lr		uregs[30]
-#define UCreg_sp		uregs[29]
-#define UCreg_ip		uregs[28]
-#define UCreg_fp		uregs[27]
-#define UCreg_26		uregs[26]
-#define UCreg_25		uregs[25]
-#define UCreg_24		uregs[24]
-#define UCreg_23		uregs[23]
-#define UCreg_22		uregs[22]
-#define UCreg_21		uregs[21]
-#define UCreg_20		uregs[20]
-#define UCreg_19		uregs[19]
-#define UCreg_18		uregs[18]
-#define UCreg_17		uregs[17]
-#define UCreg_16		uregs[16]
-#define UCreg_15		uregs[15]
-#define UCreg_14		uregs[14]
-#define UCreg_13		uregs[13]
-#define UCreg_12		uregs[12]
-#define UCreg_11		uregs[11]
-#define UCreg_10		uregs[10]
-#define UCreg_09		uregs[9]
-#define UCreg_08		uregs[8]
-#define UCreg_07		uregs[7]
-#define UCreg_06		uregs[6]
-#define UCreg_05		uregs[5]
-#define UCreg_04		uregs[4]
-#define UCreg_03		uregs[3]
-#define UCreg_02		uregs[2]
-#define UCreg_01		uregs[1]
-#define UCreg_00		uregs[0]
-#define UCreg_ORIG_00		uregs[33]
-
-#ifdef __KERNEL__
-
 #define user_mode(regs)	\
 	(processor_mode(regs) == USER_MODE)
 
@@ -125,9 +55,5 @@ static inline int valid_user_regs(struct pt_regs *regs)
 
 #define instruction_pointer(regs)	((regs)->UCreg_pc)
 
-#endif /* __KERNEL__ */
-
 #endif /* __ASSEMBLY__ */
-
 #endif
-
diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild
index baebb3da1d4..0514d7ad685 100644
--- a/arch/unicore32/include/uapi/asm/Kbuild
+++ b/arch/unicore32/include/uapi/asm/Kbuild
@@ -1,3 +1,10 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+header-y += byteorder.h
+header-y += kvm_para.h
+header-y += ptrace.h
+header-y += sigcontext.h
+header-y += unistd.h
+
+generic-y += kvm_para.h
diff --git a/arch/unicore32/include/asm/byteorder.h b/arch/unicore32/include/uapi/asm/byteorder.h
index ebe1b3fef3e..ebe1b3fef3e 100644
--- a/arch/unicore32/include/asm/byteorder.h
+++ b/arch/unicore32/include/uapi/asm/byteorder.h
diff --git a/arch/unicore32/include/uapi/asm/ptrace.h b/arch/unicore32/include/uapi/asm/ptrace.h
new file mode 100644
index 00000000000..187aa2e98a5
--- /dev/null
+++ b/arch/unicore32/include/uapi/asm/ptrace.h
@@ -0,0 +1,90 @@
+/*
+ * linux/arch/unicore32/include/asm/ptrace.h
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * 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 _UAPI__UNICORE_PTRACE_H__
+#define _UAPI__UNICORE_PTRACE_H__
+
+#define PTRACE_GET_THREAD_AREA	22
+
+/*
+ * PSR bits
+ */
+#define USER_MODE	0x00000010
+#define REAL_MODE	0x00000011
+#define INTR_MODE	0x00000012
+#define PRIV_MODE	0x00000013
+#define ABRT_MODE	0x00000017
+#define EXTN_MODE	0x0000001b
+#define SUSR_MODE	0x0000001f
+#define MODE_MASK	0x0000001f
+#define PSR_R_BIT	0x00000040
+#define PSR_I_BIT	0x00000080
+#define PSR_V_BIT	0x10000000
+#define PSR_C_BIT	0x20000000
+#define PSR_Z_BIT	0x40000000
+#define PSR_S_BIT	0x80000000
+
+/*
+ * Groups of PSR bits
+ */
+#define PSR_f		0xff000000	/* Flags		*/
+#define PSR_c		0x000000ff	/* Control		*/
+
+#ifndef __ASSEMBLY__
+
+/*
+ * This struct defines the way the registers are stored on the
+ * stack during a system call.  Note that sizeof(struct pt_regs)
+ * has to be a multiple of 8.
+ */
+struct pt_regs {
+	unsigned long uregs[34];
+};
+
+#define UCreg_asr		uregs[32]
+#define UCreg_pc		uregs[31]
+#define UCreg_lr		uregs[30]
+#define UCreg_sp		uregs[29]
+#define UCreg_ip		uregs[28]
+#define UCreg_fp		uregs[27]
+#define UCreg_26		uregs[26]
+#define UCreg_25		uregs[25]
+#define UCreg_24		uregs[24]
+#define UCreg_23		uregs[23]
+#define UCreg_22		uregs[22]
+#define UCreg_21		uregs[21]
+#define UCreg_20		uregs[20]
+#define UCreg_19		uregs[19]
+#define UCreg_18		uregs[18]
+#define UCreg_17		uregs[17]
+#define UCreg_16		uregs[16]
+#define UCreg_15		uregs[15]
+#define UCreg_14		uregs[14]
+#define UCreg_13		uregs[13]
+#define UCreg_12		uregs[12]
+#define UCreg_11		uregs[11]
+#define UCreg_10		uregs[10]
+#define UCreg_09		uregs[9]
+#define UCreg_08		uregs[8]
+#define UCreg_07		uregs[7]
+#define UCreg_06		uregs[6]
+#define UCreg_05		uregs[5]
+#define UCreg_04		uregs[4]
+#define UCreg_03		uregs[3]
+#define UCreg_02		uregs[2]
+#define UCreg_01		uregs[1]
+#define UCreg_00		uregs[0]
+#define UCreg_ORIG_00		uregs[33]
+
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _UAPI__UNICORE_PTRACE_H__ */
diff --git a/arch/unicore32/include/asm/sigcontext.h b/arch/unicore32/include/uapi/asm/sigcontext.h
index 6a2d7671c05..6a2d7671c05 100644
--- a/arch/unicore32/include/asm/sigcontext.h
+++ b/arch/unicore32/include/uapi/asm/sigcontext.h
diff --git a/arch/unicore32/include/asm/unistd.h b/arch/unicore32/include/uapi/asm/unistd.h
index 2abcf61c615..d18a3be89b3 100644
--- a/arch/unicore32/include/asm/unistd.h
+++ b/arch/unicore32/include/uapi/asm/unistd.h
@@ -12,3 +12,4 @@
 
 /* Use the standard ABI for syscalls. */
 #include <asm-generic/unistd.h>
+#define __ARCH_WANT_SYS_EXECVE
diff --git a/arch/unicore32/kernel/entry.S b/arch/unicore32/kernel/entry.S
index dcb87ab19dd..7049350c790 100644
--- a/arch/unicore32/kernel/entry.S
+++ b/arch/unicore32/kernel/entry.S
@@ -573,17 +573,16 @@ ENDPROC(ret_to_user)
  */
 ENTRY(ret_from_fork)
 	b.l	schedule_tail
-	get_thread_info tsk
-	ldw	r1, [tsk+], #TI_FLAGS		@ check for syscall tracing
-	mov	why, #1
-	cand.a	r1, #_TIF_SYSCALL_TRACE		@ are we tracing syscalls?
-	beq	ret_slow_syscall
-	mov	r1, sp
-	mov	r0, #1				@ trace exit [IP = 1]
-	b.l	syscall_trace
 	b	ret_slow_syscall
 ENDPROC(ret_from_fork)
 
+ENTRY(ret_from_kernel_thread)
+	b.l	schedule_tail
+	mov	r0, r5
+	adr	lr, ret_slow_syscall
+	mov	pc, r4
+ENDPROC(ret_from_kernel_thread)
+
 /*=============================================================================
  * SWI handler
  *-----------------------------------------------------------------------------
@@ -669,11 +668,6 @@ __cr_alignment:
 #endif
 	.ltorg
 
-ENTRY(sys_execve)
-		add	r3, sp, #S_OFF
-		b	__sys_execve
-ENDPROC(sys_execve)
-
 ENTRY(sys_clone)
 		add	ip, sp, #S_OFF
 		stw	ip, [sp+], #4
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index b008586dad7..a8fe265ce2c 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -258,6 +258,7 @@ void release_thread(struct task_struct *dead_task)
 }
 
 asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
+asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");
 
 int
 copy_thread(unsigned long clone_flags, unsigned long stack_start,
@@ -266,17 +267,22 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
 	struct thread_info *thread = task_thread_info(p);
 	struct pt_regs *childregs = task_pt_regs(p);
 
-	*childregs = *regs;
-	childregs->UCreg_00 = 0;
-	childregs->UCreg_sp = stack_start;
-
 	memset(&thread->cpu_context, 0, sizeof(struct cpu_context_save));
 	thread->cpu_context.sp = (unsigned long)childregs;
-	thread->cpu_context.pc = (unsigned long)ret_from_fork;
-
-	if (clone_flags & CLONE_SETTLS)
-		childregs->UCreg_16 = regs->UCreg_03;
+	if (unlikely(!regs)) {
+		thread->cpu_context.pc = (unsigned long)ret_from_kernel_thread;
+		thread->cpu_context.r4 = stack_start;
+		thread->cpu_context.r5 = stk_sz;
+		memset(childregs, 0, sizeof(struct pt_regs));
+	} else {
+		thread->cpu_context.pc = (unsigned long)ret_from_fork;
+		*childregs = *regs;
+		childregs->UCreg_00 = 0;
+		childregs->UCreg_sp = stack_start;
 
+		if (clone_flags & CLONE_SETTLS)
+			childregs->UCreg_16 = regs->UCreg_03;
+	}
 	return 0;
 }
 
@@ -305,42 +311,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fp)
 }
 EXPORT_SYMBOL(dump_fpu);
 
-/*
- * Shuffle the argument into the correct register before calling the
- * thread function.  r1 is the thread argument, r2 is the pointer to
- * the thread function, and r3 points to the exit function.
- */
-asm(".pushsection .text\n"
-"	.align\n"
-"	.type	kernel_thread_helper, #function\n"
-"kernel_thread_helper:\n"
-"	mov.a	asr, r7\n"
-"	mov	r0, r4\n"
-"	mov	lr, r6\n"
-"	mov	pc, r5\n"
-"	.size	kernel_thread_helper, . - kernel_thread_helper\n"
-"	.popsection");
-
-/*
- * Create a kernel thread.
- */
-pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
-{
-	struct pt_regs regs;
-
-	memset(&regs, 0, sizeof(regs));
-
-	regs.UCreg_04 = (unsigned long)arg;
-	regs.UCreg_05 = (unsigned long)fn;
-	regs.UCreg_06 = (unsigned long)do_exit;
-	regs.UCreg_07 = PRIV_MODE;
-	regs.UCreg_pc = (unsigned long)kernel_thread_helper;
-	regs.UCreg_asr = regs.UCreg_07 | PSR_I_BIT;
-
-	return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
-}
-EXPORT_SYMBOL(kernel_thread);
-
 unsigned long get_wchan(struct task_struct *p)
 {
 	struct stackframe frame;
diff --git a/arch/unicore32/kernel/setup.h b/arch/unicore32/kernel/setup.h
index f23955028a1..30f749da8f7 100644
--- a/arch/unicore32/kernel/setup.h
+++ b/arch/unicore32/kernel/setup.h
@@ -30,4 +30,10 @@ extern char __vectors_start[], __vectors_end[];
 extern void kernel_thread_helper(void);
 
 extern void __init early_signal_init(void);
+
+extern asmlinkage void __backtrace(void);
+extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
+
+extern void __show_regs(struct pt_regs *);
+
 #endif
diff --git a/arch/unicore32/kernel/sys.c b/arch/unicore32/kernel/sys.c
index fabdee96110..9680134b31f 100644
--- a/arch/unicore32/kernel/sys.c
+++ b/arch/unicore32/kernel/sys.c
@@ -42,69 +42,6 @@ asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp,
 			parent_tid, child_tid);
 }
 
-/* sys_execve() executes a new program.
- * This is called indirectly via a small wrapper
- */
-asmlinkage long __sys_execve(const char __user *filename,
-			  const char __user *const __user *argv,
-			  const char __user *const __user *envp,
-			  struct pt_regs *regs)
-{
-	int error;
-	struct filename *fn;
-
-	fn = getname(filename);
-	error = PTR_ERR(fn);
-	if (IS_ERR(fn))
-		goto out;
-	error = do_execve(fn->name, argv, envp, regs);
-	putname(fn);
-out:
-	return error;
-}
-
-int kernel_execve(const char *filename,
-		  const char *const argv[],
-		  const char *const envp[])
-{
-	struct pt_regs regs;
-	int ret;
-
-	memset(&regs, 0, sizeof(struct pt_regs));
-	ret = do_execve(filename,
-			(const char __user *const __user *)argv,
-			(const char __user *const __user *)envp, &regs);
-	if (ret < 0)
-		goto out;
-
-	/*
-	 * Save argc to the register structure for userspace.
-	 */
-	regs.UCreg_00 = ret;
-
-	/*
-	 * We were successful.  We won't be returning to our caller, but
-	 * instead to user space by manipulating the kernel stack.
-	 */
-	asm("add	r0, %0, %1\n\t"
-		"mov	r1, %2\n\t"
-		"mov	r2, %3\n\t"
-		"mov	r22, #0\n\t"	/* not a syscall */
-		"mov	r23, %0\n\t"	/* thread structure */
-		"b.l	memmove\n\t"	/* copy regs to top of stack */
-		"mov	sp, r0\n\t"	/* reposition stack pointer */
-		"b	ret_to_user"
-		:
-		: "r" (current_thread_info()),
-		  "Ir" (THREAD_START_SP - sizeof(regs)),
-		  "r" (&regs),
-		  "Ir" (sizeof(regs))
-		: "r0", "r1", "r2", "r3", "ip", "lr", "memory");
-
- out:
-	return ret;
-}
-
 /* Note: used by the compat code even in 64-bit Linux. */
 SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
 		unsigned long, prot, unsigned long, flags,
diff --git a/arch/unicore32/mm/fault.c b/arch/unicore32/mm/fault.c
index 2eeb9c04cab..f9b5c10bcce 100644
--- a/arch/unicore32/mm/fault.c
+++ b/arch/unicore32/mm/fault.c
@@ -168,7 +168,7 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma)
 }
 
 static int __do_pf(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
-		struct task_struct *tsk)
+		unsigned int flags, struct task_struct *tsk)
 {
 	struct vm_area_struct *vma;
 	int fault;
@@ -194,14 +194,7 @@ good_area:
 	 * If for any reason at all we couldn't handle the fault, make
 	 * sure we exit gracefully rather than endlessly redo the fault.
 	 */
-	fault = handle_mm_fault(mm, vma, addr & PAGE_MASK,
-			    (!(fsr ^ 0x12)) ? FAULT_FLAG_WRITE : 0);
-	if (unlikely(fault & VM_FAULT_ERROR))
-		return fault;
-	if (fault & VM_FAULT_MAJOR)
-		tsk->maj_flt++;
-	else
-		tsk->min_flt++;
+	fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, flags);
 	return fault;
 
 check_stack:
@@ -216,6 +209,8 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	int fault, sig, code;
+	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
+				 ((!(fsr ^ 0x12)) ? FAULT_FLAG_WRITE : 0);
 
 	tsk = current;
 	mm = tsk->mm;
@@ -236,6 +231,7 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 		if (!user_mode(regs)
 		    && !search_exception_tables(regs->UCreg_pc))
 			goto no_context;
+retry:
 		down_read(&mm->mmap_sem);
 	} else {
 		/*
@@ -251,7 +247,28 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 #endif
 	}
 
-	fault = __do_pf(mm, addr, fsr, tsk);
+	fault = __do_pf(mm, addr, fsr, flags, tsk);
+
+	/* If we need to retry but a fatal signal is pending, handle the
+	 * signal first. We do not need to release the mmap_sem because
+	 * it would already be released in __lock_page_or_retry in
+	 * mm/filemap.c. */
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+		return 0;
+
+	if (!(fault & VM_FAULT_ERROR) && (flags & FAULT_FLAG_ALLOW_RETRY)) {
+		if (fault & VM_FAULT_MAJOR)
+			tsk->maj_flt++;
+		else
+			tsk->min_flt++;
+		if (fault & VM_FAULT_RETRY) {
+			/* Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk
+			* of starvation. */
+			flags &= ~FAULT_FLAG_ALLOW_RETRY;
+			goto retry;
+		}
+	}
+
 	up_read(&mm->mmap_sem);
 
 	/*
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index c760e073963..e87b0cac14b 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -12,6 +12,8 @@
 #include <asm/setup.h>
 #include <asm/desc.h>
 
+#undef memcpy			/* Use memcpy from misc.c */
+
 #include "eboot.h"
 
 static efi_system_table_t *sys_table;
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 2a017441b8b..8c132a625b9 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -476,6 +476,3 @@ die:
 setup_corrupt:
 	.byte	7
 	.string	"No setup signature found...\n"
-
-	.data
-dummy:	.long	0
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index dcfde52979c..19f16ebaf4f 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -205,21 +205,14 @@ static inline bool user_64bit_mode(struct pt_regs *regs)
 }
 #endif
 
-/*
- * X86_32 CPUs don't save ss and esp if the CPU is already in kernel mode
- * when it traps.  The previous stack will be directly underneath the saved
- * registers, and 'sp/ss' won't even have been saved. Thus the '&regs->sp'.
- *
- * This is valid only for kernel mode traps.
- */
-static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
-{
 #ifdef CONFIG_X86_32
-	return (unsigned long)(&regs->sp);
+extern unsigned long kernel_stack_pointer(struct pt_regs *regs);
 #else
+static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
+{
 	return regs->sp;
-#endif
 }
+#endif
 
 #define GET_IP(regs) ((regs)->ip)
 #define GET_FP(regs) ((regs)->bp)
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index f7e98a2c0d1..1b7d1656a04 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -631,6 +631,20 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 		}
 	}
 
+	/*
+	 * The way access filter has a performance penalty on some workloads.
+	 * Disable it on the affected CPUs.
+	 */
+	if ((c->x86 == 0x15) &&
+	    (c->x86_model >= 0x02) && (c->x86_model < 0x20)) {
+		u64 val;
+
+		if (!rdmsrl_safe(0xc0011021, &val) && !(val & 0x1E)) {
+			val |= 0x1E;
+			wrmsrl_safe(0xc0011021, val);
+		}
+	}
+
 	cpu_detect_cache_sizes(c);
 
 	/* Multi core CPU? */
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 698b6ec12e0..1ac581f38df 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -6,7 +6,7 @@
  *
  *  Written by Jacob Shin - AMD, Inc.
  *
- *  Support: borislav.petkov@amd.com
+ *  Maintained by: Borislav Petkov <bp@alien8.de>
  *
  *  April 2006
  *     - added support for AMD Family 0x10 processors
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c
index 5f88abf07e9..4f9a3cbfc4a 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_intel.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c
@@ -285,34 +285,39 @@ void cmci_clear(void)
 	raw_spin_unlock_irqrestore(&cmci_discover_lock, flags);
 }
 
+static long cmci_rediscover_work_func(void *arg)
+{
+	int banks;
+
+	/* Recheck banks in case CPUs don't all have the same */
+	if (cmci_supported(&banks))
+		cmci_discover(banks);
+
+	return 0;
+}
+
 /*
  * After a CPU went down cycle through all the others and rediscover
  * Must run in process context.
  */
 void cmci_rediscover(int dying)
 {
-	int banks;
-	int cpu;
-	cpumask_var_t old;
+	int cpu, banks;
 
 	if (!cmci_supported(&banks))
 		return;
-	if (!alloc_cpumask_var(&old, GFP_KERNEL))
-		return;
-	cpumask_copy(old, &current->cpus_allowed);
 
 	for_each_online_cpu(cpu) {
 		if (cpu == dying)
 			continue;
-		if (set_cpus_allowed_ptr(current, cpumask_of(cpu)))
+
+		if (cpu == smp_processor_id()) {
+			cmci_rediscover_work_func(NULL);
 			continue;
-		/* Recheck banks in case CPUs don't all have the same */
-		if (cmci_supported(&banks))
-			cmci_discover(banks);
-	}
+		}
 
-	set_cpus_allowed_ptr(current, old);
-	free_cpumask_var(old);
+		work_on_cpu(cpu, cmci_rediscover_work_func, NULL);
+	}
 }
 
 /*
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index b51b2c7ee51..1328fe49a3f 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -995,8 +995,8 @@ END(interrupt)
 	 */
 	.p2align CONFIG_X86_L1_CACHE_SHIFT
 common_interrupt:
-	ASM_CLAC
 	XCPT_FRAME
+	ASM_CLAC
 	addq $-0x80,(%rsp)		/* Adjust vector to [-256,-1] range */
 	interrupt do_IRQ
 	/* 0(%rsp): old_rsp-ARGOFFSET */
@@ -1135,8 +1135,8 @@ END(common_interrupt)
  */
 .macro apicinterrupt num sym do_sym
 ENTRY(\sym)
-	ASM_CLAC
 	INTR_FRAME
+	ASM_CLAC
 	pushq_cfi $~(\num)
 .Lcommon_\sym:
 	interrupt \do_sym
@@ -1190,8 +1190,8 @@ apicinterrupt IRQ_WORK_VECTOR \
  */
 .macro zeroentry sym do_sym
 ENTRY(\sym)
-	ASM_CLAC
 	INTR_FRAME
+	ASM_CLAC
 	PARAVIRT_ADJUST_EXCEPTION_FRAME
 	pushq_cfi $-1		/* ORIG_RAX: no syscall to restart */
 	subq $ORIG_RAX-R15, %rsp
@@ -1208,8 +1208,8 @@ END(\sym)
 
 .macro paranoidzeroentry sym do_sym
 ENTRY(\sym)
-	ASM_CLAC
 	INTR_FRAME
+	ASM_CLAC
 	PARAVIRT_ADJUST_EXCEPTION_FRAME
 	pushq_cfi $-1		/* ORIG_RAX: no syscall to restart */
 	subq $ORIG_RAX-R15, %rsp
@@ -1227,8 +1227,8 @@ END(\sym)
 #define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8)
 .macro paranoidzeroentry_ist sym do_sym ist
 ENTRY(\sym)
-	ASM_CLAC
 	INTR_FRAME
+	ASM_CLAC
 	PARAVIRT_ADJUST_EXCEPTION_FRAME
 	pushq_cfi $-1		/* ORIG_RAX: no syscall to restart */
 	subq $ORIG_RAX-R15, %rsp
@@ -1247,8 +1247,8 @@ END(\sym)
 
 .macro errorentry sym do_sym
 ENTRY(\sym)
-	ASM_CLAC
 	XCPT_FRAME
+	ASM_CLAC
 	PARAVIRT_ADJUST_EXCEPTION_FRAME
 	subq $ORIG_RAX-R15, %rsp
 	CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
@@ -1266,8 +1266,8 @@ END(\sym)
 	/* error code is on the stack already */
 .macro paranoiderrorentry sym do_sym
 ENTRY(\sym)
-	ASM_CLAC
 	XCPT_FRAME
+	ASM_CLAC
 	PARAVIRT_ADJUST_EXCEPTION_FRAME
 	subq $ORIG_RAX-R15, %rsp
 	CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 7720ff5a9ee..efdec7cd8e0 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -8,8 +8,8 @@
  *  Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
  *
  *  Maintainers:
- *  Andreas Herrmann <andreas.herrmann3@amd.com>
- *  Borislav Petkov <borislav.petkov@amd.com>
+ *  Andreas Herrmann <herrmann.der.user@googlemail.com>
+ *  Borislav Petkov <bp@alien8.de>
  *
  *  This driver allows to upgrade microcode on F10h AMD
  *  CPUs and later.
@@ -190,6 +190,7 @@ static unsigned int verify_patch_size(int cpu, u32 patch_size,
 #define F1XH_MPB_MAX_SIZE 2048
 #define F14H_MPB_MAX_SIZE 1824
 #define F15H_MPB_MAX_SIZE 4096
+#define F16H_MPB_MAX_SIZE 3458
 
 	switch (c->x86) {
 	case 0x14:
@@ -198,6 +199,9 @@ static unsigned int verify_patch_size(int cpu, u32 patch_size,
 	case 0x15:
 		max_size = F15H_MPB_MAX_SIZE;
 		break;
+	case 0x16:
+		max_size = F16H_MPB_MAX_SIZE;
+		break;
 	default:
 		max_size = F1XH_MPB_MAX_SIZE;
 		break;
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index b00b33a1839..5e0596b0632 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -22,6 +22,7 @@
 #include <linux/perf_event.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/rcupdate.h>
+#include <linux/module.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -166,6 +167,35 @@ static inline bool invalid_selector(u16 value)
 
 #define FLAG_MASK		FLAG_MASK_32
 
+/*
+ * X86_32 CPUs don't save ss and esp if the CPU is already in kernel mode
+ * when it traps.  The previous stack will be directly underneath the saved
+ * registers, and 'sp/ss' won't even have been saved. Thus the '&regs->sp'.
+ *
+ * Now, if the stack is empty, '&regs->sp' is out of range. In this
+ * case we try to take the previous stack. To always return a non-null
+ * stack pointer we fall back to regs as stack if no previous stack
+ * exists.
+ *
+ * This is valid only for kernel mode traps.
+ */
+unsigned long kernel_stack_pointer(struct pt_regs *regs)
+{
+	unsigned long context = (unsigned long)regs & ~(THREAD_SIZE - 1);
+	unsigned long sp = (unsigned long)&regs->sp;
+	struct thread_info *tinfo;
+
+	if (context == (sp & ~(THREAD_SIZE - 1)))
+		return sp;
+
+	tinfo = (struct thread_info *)context;
+	if (tinfo->previous_esp)
+		return tinfo->previous_esp;
+
+	return (unsigned long)regs;
+}
+EXPORT_SYMBOL_GPL(kernel_stack_pointer);
+
 static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
 {
 	BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0);
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index a10e4601685..58fc5148882 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -24,6 +24,9 @@ static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
 {
 	struct kvm_cpuid_entry2 *best;
 
+	if (!static_cpu_has(X86_FEATURE_XSAVE))
+		return 0;
+
 	best = kvm_find_cpuid_entry(vcpu, 1, 0);
 	return best && (best->ecx & bit(X86_FEATURE_XSAVE));
 }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index ad6b1dd06f8..f85815945fc 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6549,19 +6549,22 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
 		}
 	}
 
-	exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
 	/* Exposing INVPCID only when PCID is exposed */
 	best = kvm_find_cpuid_entry(vcpu, 0x7, 0);
 	if (vmx_invpcid_supported() &&
 	    best && (best->ebx & bit(X86_FEATURE_INVPCID)) &&
 	    guest_cpuid_has_pcid(vcpu)) {
+		exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
 		exec_control |= SECONDARY_EXEC_ENABLE_INVPCID;
 		vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
 			     exec_control);
 	} else {
-		exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID;
-		vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
-			     exec_control);
+		if (cpu_has_secondary_exec_ctrls()) {
+			exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
+			exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID;
+			vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
+				     exec_control);
+		}
 		if (best)
 			best->ebx &= ~bit(X86_FEATURE_INVPCID);
 	}
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 224a7e78cb6..4f7641756be 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5781,6 +5781,9 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	int pending_vec, max_bits, idx;
 	struct desc_ptr dt;
 
+	if (!guest_cpuid_has_xsave(vcpu) && (sregs->cr4 & X86_CR4_OSXSAVE))
+		return -EINVAL;
+
 	dt.size = sregs->idt.limit;
 	dt.address = sregs->idt.base;
 	kvm_x86_ops->set_idt(vcpu, &dt);
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 0777f042e40..60f926cd8b0 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -197,7 +197,7 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
 	}
 
 	if (end == TLB_FLUSH_ALL || tlb_flushall_shift == -1
-					|| vmflag == VM_HUGETLB) {
+					|| vmflag & VM_HUGETLB) {
 		local_flush_tlb();
 		goto flush_all;
 	}
diff --git a/arch/x86/pci/ce4100.c b/arch/x86/pci/ce4100.c
index 41bd2a2d2c5..b914e20b5a0 100644
--- a/arch/x86/pci/ce4100.c
+++ b/arch/x86/pci/ce4100.c
@@ -115,6 +115,16 @@ static void sata_revid_read(struct sim_dev_reg *reg, u32 *value)
 	reg_read(reg, value);
 }
 
+static void reg_noirq_read(struct sim_dev_reg *reg, u32 *value)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&pci_config_lock, flags);
+	/* force interrupt pin value to 0 */
+	*value = reg->sim_reg.value & 0xfff00ff;
+	raw_spin_unlock_irqrestore(&pci_config_lock, flags);
+}
+
 static struct sim_dev_reg bus1_fixups[] = {
 	DEFINE_REG(2, 0, 0x10, (16*MB), reg_init, reg_read, reg_write)
 	DEFINE_REG(2, 0, 0x14, (256), reg_init, reg_read, reg_write)
@@ -144,6 +154,7 @@ static struct sim_dev_reg bus1_fixups[] = {
 	DEFINE_REG(11, 5, 0x10, (64*KB), reg_init, reg_read, reg_write)
 	DEFINE_REG(11, 6, 0x10, (256), reg_init, reg_read, reg_write)
 	DEFINE_REG(11, 7, 0x10, (64*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(11, 7, 0x3c, 256, reg_init, reg_noirq_read, reg_write)
 	DEFINE_REG(12, 0, 0x10, (128*KB), reg_init, reg_read, reg_write)
 	DEFINE_REG(12, 0, 0x14, (256), reg_init, reg_read, reg_write)
 	DEFINE_REG(12, 1, 0x10, (1024), reg_init, reg_read, reg_write)
@@ -161,8 +172,10 @@ static struct sim_dev_reg bus1_fixups[] = {
 	DEFINE_REG(16, 0, 0x10, (64*KB), reg_init, reg_read, reg_write)
 	DEFINE_REG(16, 0, 0x14, (64*MB), reg_init, reg_read, reg_write)
 	DEFINE_REG(16, 0, 0x18, (64*MB), reg_init, reg_read, reg_write)
+	DEFINE_REG(16, 0, 0x3c, 256, reg_init, reg_noirq_read, reg_write)
 	DEFINE_REG(17, 0, 0x10, (128*KB), reg_init, reg_read, reg_write)
 	DEFINE_REG(18, 0, 0x10, (1*KB), reg_init, reg_read, reg_write)
+	DEFINE_REG(18, 0, 0x3c, 256, reg_init, reg_noirq_read, reg_write)
 };
 
 static void __init init_sim_regs(void)
diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
index 4c61b52191e..92525cb8e54 100644
--- a/arch/x86/platform/ce4100/ce4100.c
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -21,12 +21,25 @@
 #include <asm/i8259.h>
 #include <asm/io.h>
 #include <asm/io_apic.h>
+#include <asm/emergency-restart.h>
 
 static int ce4100_i8042_detect(void)
 {
 	return 0;
 }
 
+/*
+ * The CE4100 platform has an internal 8051 Microcontroller which is
+ * responsible for signaling to the external Power Management Unit the
+ * intention to reset, reboot or power off the system. This 8051 device has
+ * its command register mapped at I/O port 0xcf9 and the value 0x4 is used
+ * to power off the system.
+ */
+static void ce4100_power_off(void)
+{
+	outb(0x4, 0xcf9);
+}
+
 #ifdef CONFIG_SERIAL_8250
 
 static unsigned int mem_serial_in(struct uart_port *p, int offset)
@@ -139,8 +152,19 @@ void __init x86_ce4100_early_setup(void)
 	x86_init.mpparse.find_smp_config = x86_init_noop;
 	x86_init.pci.init = ce4100_pci_init;
 
+	/*
+	 * By default, the reboot method is ACPI which is supported by the
+	 * CE4100 bootloader CEFDK using FADT.ResetReg Address and ResetValue
+	 * the bootloader will however issue a system power off instead of
+	 * reboot. By using BOOT_KBD we ensure proper system reboot as
+	 * expected.
+	 */
+	reboot_type = BOOT_KBD;
+
 #ifdef CONFIG_X86_IO_APIC
 	x86_init.pci.init_irq = sdv_pci_init;
 	x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc_nocheck;
 #endif
+
+	pm_power_off = ce4100_power_off;
 }
author	Olof Johansson <olof@lixom.net>	2012-11-25 21:34:34 -0800
committer	Olof Johansson <olof@lixom.net>	2012-11-25 21:34:34 -0800
commit	0f9cb211ba5db93d488fe6b154138231fdd0e22d (patch)
tree	293871b042e9ebc49b1d783f1b110eef541ddc97 /arch
parent	007108a2279123ad6639b6c653ad1a731febb60f (diff)
parent	9489e9dcae718d5fde988e4a684a0f55b5f94d17 (diff)