Merge commit 'v2.6.35' into perf/core

Conflicts:
	tools/perf/Makefile
	tools/perf/util/hist.c

Merge reason: Resolve the conflicts and update to latest upstream.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Documentation/credentials.txt

@@ -417,6 +417,9 @@ reference on them using:
 This does all the RCU magic inside of it.  The caller must call put_cred() on
 the credentials so obtained when they're finished with.
 
+ [*] Note: The result of __task_cred() should not be passed directly to
+     get_cred() as this may race with commit_cred().
+
 There are a couple of convenience functions to access bits of another task's
 credentials, hiding the RCU magic from the caller:
 

Documentation/feature-removal-schedule.txt

@@ -647,3 +647,10 @@ Who:	Stefan Richter <stefanr@s5r6.in-berlin.de>
 
 ----------------------------
 
+What:	The acpi_sleep=s4_nonvs command line option
+When:	2.6.37
+Files:	arch/x86/kernel/acpi/sleep.c
+Why:	superseded by acpi_sleep=nonvs
+Who:	Rafael J. Wysocki <rjw@sisk.pl>
+
+----------------------------

Documentation/kernel-parameters.txt

@@ -254,8 +254,8 @@ and is between 256 and 4096 characters. It is defined in the file
 			control method, with respect to putting devices into
 			low power states, to be enforced (the ACPI 2.0 ordering
 			of _PTS is used by default).
-			s4_nonvs prevents the kernel from saving/restoring the
-			ACPI NVS memory during hibernation.
+			nonvs prevents the kernel from saving/restoring the
+			ACPI NVS memory during suspend/hibernation and resume.
 			sci_force_enable causes the kernel to set SCI_EN directly
 			on resume from S1/S3 (which is against the ACPI spec,
 			but some broken systems don't work without it).

MAINTAINERS

@@ -6236,6 +6236,8 @@ F:	drivers/mmc/host/wbsd.*
 
 WATCHDOG DEVICE DRIVERS
 M:	Wim Van Sebroeck <wim@iguana.be>
+L:	linux-watchdog@vger.kernel.org
+W:	http://www.linux-watchdog.org/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
 S:	Maintained
 F:	Documentation/watchdog/

Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 35
-EXTRAVERSION = -rc5
+EXTRAVERSION =
 NAME = Sheep on Meth
 
 # *DOCUMENTATION*

arch/arm/boot/compressed/Makefile

@@ -71,6 +71,9 @@ targets       := vmlinux vmlinux.lds \
 		 piggy.$(suffix_y) piggy.$(suffix_y).o \
 		 font.o font.c head.o misc.o $(OBJS)
 
+# Make sure files are removed during clean
+extra-y       += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S
+
 ifeq ($(CONFIG_FUNCTION_TRACER),y)
 ORIG_CFLAGS := $(KBUILD_CFLAGS)
 KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))

arch/arm/common/sa1111.c

@@ -1028,13 +1028,12 @@ static int sa1111_remove(struct platform_device *pdev)
 	struct sa1111 *sachip = platform_get_drvdata(pdev);
 
 	if (sachip) {
-		__sa1111_remove(sachip);
-		platform_set_drvdata(pdev, NULL);
-
 #ifdef CONFIG_PM
 		kfree(sachip->saved_state);
 		sachip->saved_state = NULL;
 #endif
+		__sa1111_remove(sachip);
+		platform_set_drvdata(pdev, NULL);
 	}
 
 	return 0;

arch/arm/include/asm/io.h

@@ -26,6 +26,7 @@
 #include <linux/types.h>
 #include <asm/byteorder.h>
 #include <asm/memory.h>
+#include <asm/system.h>
 
 /*
  * ISA I/O bus memory addresses are 1:1 with the physical address.
@@ -179,25 +180,38 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
  * IO port primitives for more information.
  */
 #ifdef __mem_pci
-#define readb(c) ({ __u8  __v = __raw_readb(__mem_pci(c)); __v; })
-#define readw(c) ({ __u16 __v = le16_to_cpu((__force __le16) \
+#define readb_relaxed(c) ({ u8  __v = __raw_readb(__mem_pci(c)); __v; })
+#define readw_relaxed(c) ({ u16 __v = le16_to_cpu((__force __le16) \
 					__raw_readw(__mem_pci(c))); __v; })
-#define readl(c) ({ __u32 __v = le32_to_cpu((__force __le32) \
+#define readl_relaxed(c) ({ u32 __v = le32_to_cpu((__force __le32) \
 					__raw_readl(__mem_pci(c))); __v; })
-#define readb_relaxed(addr) readb(addr)
-#define readw_relaxed(addr) readw(addr)
-#define readl_relaxed(addr) readl(addr)
+
+#define writeb_relaxed(v,c)	((void)__raw_writeb(v,__mem_pci(c)))
+#define writew_relaxed(v,c)	((void)__raw_writew((__force u16) \
+					cpu_to_le16(v),__mem_pci(c)))
+#define writel_relaxed(v,c)	((void)__raw_writel((__force u32) \
+					cpu_to_le32(v),__mem_pci(c)))
+
+#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
+#define __iormb()		rmb()
+#define __iowmb()		wmb()
+#else
+#define __iormb()		do { } while (0)
+#define __iowmb()		do { } while (0)
+#endif
+
+#define readb(c)		({ u8  __v = readb_relaxed(c); __iormb(); __v; })
+#define readw(c)		({ u16 __v = readw_relaxed(c); __iormb(); __v; })
+#define readl(c)		({ u32 __v = readl_relaxed(c); __iormb(); __v; })
+
+#define writeb(v,c)		({ __iowmb(); writeb_relaxed(v,c); })
+#define writew(v,c)		({ __iowmb(); writew_relaxed(v,c); })
+#define writel(v,c)		({ __iowmb(); writel_relaxed(v,c); })
 
 #define readsb(p,d,l)		__raw_readsb(__mem_pci(p),d,l)
 #define readsw(p,d,l)		__raw_readsw(__mem_pci(p),d,l)
 #define readsl(p,d,l)		__raw_readsl(__mem_pci(p),d,l)
 
-#define writeb(v,c)		__raw_writeb(v,__mem_pci(c))
-#define writew(v,c)		__raw_writew((__force __u16) \
-					cpu_to_le16(v),__mem_pci(c))
-#define writel(v,c)		__raw_writel((__force __u32) \
-					cpu_to_le32(v),__mem_pci(c))
-
 #define writesb(p,d,l)		__raw_writesb(__mem_pci(p),d,l)
 #define writesw(p,d,l)		__raw_writesw(__mem_pci(p),d,l)
 #define writesl(p,d,l)		__raw_writesl(__mem_pci(p),d,l)
@@ -244,13 +258,13 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
  * io{read,write}{8,16,32} macros
  */
 #ifndef ioread8
-#define ioread8(p)	({ unsigned int __v = __raw_readb(p); __v; })
-#define ioread16(p)	({ unsigned int __v = le16_to_cpu((__force __le16)__raw_readw(p)); __v; })
-#define ioread32(p)	({ unsigned int __v = le32_to_cpu((__force __le32)__raw_readl(p)); __v; })
+#define ioread8(p)	({ unsigned int __v = __raw_readb(p); __iormb(); __v; })
+#define ioread16(p)	({ unsigned int __v = le16_to_cpu((__force __le16)__raw_readw(p)); __iormb(); __v; })
+#define ioread32(p)	({ unsigned int __v = le32_to_cpu((__force __le32)__raw_readl(p)); __iormb(); __v; })
 
-#define iowrite8(v,p)	__raw_writeb(v, p)
-#define iowrite16(v,p)	__raw_writew((__force __u16)cpu_to_le16(v), p)
-#define iowrite32(v,p)	__raw_writel((__force __u32)cpu_to_le32(v), p)
+#define iowrite8(v,p)	({ __iowmb(); (void)__raw_writeb(v, p); })
+#define iowrite16(v,p)	({ __iowmb(); (void)__raw_writew((__force __u16)cpu_to_le16(v), p); })
+#define iowrite32(v,p)	({ __iowmb(); (void)__raw_writel((__force __u32)cpu_to_le32(v), p); })
 
 #define ioread8_rep(p,d,c)	__raw_readsb(p,d,c)
 #define ioread16_rep(p,d,c)	__raw_readsw(p,d,c)

arch/arm/lib/csumpartialcopyuser.S

@@ -71,7 +71,7 @@
 		.pushsection .fixup,"ax"
 		.align	4
 9001:		mov	r4, #-EFAULT
-		ldr	r5, [fp, #4]		@ *err_ptr
+		ldr	r5, [sp, #8*4]		@ *err_ptr
 		str	r4, [r5]
 		ldmia	sp, {r1, r2}		@ retrieve dst, len
 		add	r2, r2, r1

arch/arm/mach-clps711x/include/mach/debug-macro.S

@@ -11,6 +11,7 @@
  *
 */
 
+#include <mach/hardware.h>
 #include <asm/hardware/clps7111.h>
 
 		.macro	addruart, rx, tmp

arch/arm/mach-davinci/board-da850-evm.c

@@ -25,6 +25,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/regulator/machine.h>
+#include <linux/regulator/tps6507x.h>
 #include <linux/mfd/tps6507x.h>
 #include <linux/input/tps6507x-ts.h>
 
@@ -469,6 +470,11 @@ struct regulator_consumer_supply tps65070_ldo2_consumers[] = {
 	},
 };
 
+/* We take advantage of the fact that both defdcdc{2,3} are tied high */
+static struct tps6507x_reg_platform_data tps6507x_platform_data = {
+	.defdcdc_default = true,
+};
+
 struct regulator_init_data tps65070_regulator_data[] = {
 	/* dcdc1 */
 	{
@@ -494,6 +500,7 @@ struct regulator_init_data tps65070_regulator_data[] = {
 		},
 		.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc2_consumers),
 		.consumer_supplies = tps65070_dcdc2_consumers,
+		.driver_data = &tps6507x_platform_data,
 	},
 
 	/* dcdc3 */
@@ -507,6 +514,7 @@ struct regulator_init_data tps65070_regulator_data[] = {
 		},
 		.num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc3_consumers),
 		.consumer_supplies = tps65070_dcdc3_consumers,
+		.driver_data = &tps6507x_platform_data,
 	},
 
 	/* ldo1 */

arch/arm/mach-footbridge/common.c

@@ -232,7 +232,7 @@ EXPORT_SYMBOL(__bus_to_virt);
 
 unsigned long __pfn_to_bus(unsigned long pfn)
 {
-	return __pfn_to_phys(pfn) + (fb_bus_sdram_offset() - PHYS_OFFSET));
+	return __pfn_to_phys(pfn) + (fb_bus_sdram_offset() - PHYS_OFFSET);
 }
 EXPORT_SYMBOL(__pfn_to_bus);
 

arch/arm/mach-h720x/include/mach/debug-macro.S

@@ -11,8 +11,10 @@
  *
 */
 
-		.equ    io_virt, IO_BASE
-		.equ    io_phys, IO_START
+#include <mach/hardware.h>
+
+		.equ    io_virt, IO_VIRT
+		.equ    io_phys, IO_PHYS
 
 		.macro  addruart, rx, tmp
 		mrc     p15, 0, \rx, c1, c0

arch/arm/mach-kirkwood/tsx1x-common.c

@@ -77,7 +77,7 @@ struct spi_board_info __initdata qnap_tsx1x_spi_slave_info[] = {
 	},
 };
 
-void qnap_tsx1x_register_flash(void)
+void __init qnap_tsx1x_register_flash(void)
 {
 	spi_register_board_info(qnap_tsx1x_spi_slave_info,
 				ARRAY_SIZE(qnap_tsx1x_spi_slave_info));

arch/arm/mach-kirkwood/tsx1x-common.h

@@ -1,7 +1,7 @@
 #ifndef __ARCH_KIRKWOOD_TSX1X_COMMON_H
 #define __ARCH_KIRKWOOD_TSX1X_COMMON_H
 
-extern void qnap_tsx1x_register_flash(void);
+extern void __init qnap_tsx1x_register_flash(void);
 extern void qnap_tsx1x_power_off(void);
 
 #endif

arch/arm/mach-ns9xxx/include/mach/debug-macro.S

@@ -8,6 +8,7 @@
  * the Free Software Foundation.
  */
 #include <mach/hardware.h>
+#include <asm/memory.h>
 
 #include <mach/regs-board-a9m9750dev.h>
 

arch/arm/mach-ns9xxx/include/mach/uncompress.h

@@ -20,50 +20,49 @@ static void putc_dummy(char c, void __iomem *base)
 	/* nothing */
 }
 
+static int timeout;
+
 static void putc_ns9360(char c, void __iomem *base)
 {
-	static int t = 0x10000;
 	do {
-		if (t)
-			--t;
+		if (timeout)
+			--timeout;
 
 		if (__raw_readl(base + 8) & (1 << 3)) {
 			__raw_writeb(c, base + 16);
-			t = 0x10000;
+			timeout = 0x10000;
 			break;
 		}
-	} while (t);
+	} while (timeout);
 }
 
 static void putc_a9m9750dev(char c, void __iomem *base)
 {
-	static int t = 0x10000;
 	do {
-		if (t)
-			--t;
+		if (timeout)
+			--timeout;
 
 		if (__raw_readb(base + 5) & (1 << 5)) {
 			__raw_writeb(c, base);
-			t = 0x10000;
+			timeout = 0x10000;
 			break;
 		}
-	} while (t);
+	} while (timeout);
 
 }
 
 static void putc_ns921x(char c, void __iomem *base)
 {
-	static int t = 0x10000;
 	do {
-		if (t)
-			--t;
+		if (timeout)
+			--timeout;
 
 		if (!(__raw_readl(base) & (1 << 11))) {
 			__raw_writeb(c, base + 0x0028);
-			t = 0x10000;
+			timeout = 0x10000;
 			break;
 		}
-	} while (t);
+	} while (timeout);
 }
 
 #define MSCS __REG(0xA0900184)
@@ -89,6 +88,7 @@ static void putc_ns921x(char c, void __iomem *base)
 
 static void autodetect(void (**putc)(char, void __iomem *), void __iomem **base)
 {
+	timeout = 0x10000;
 	if (((__raw_readl(MSCS) >> 16) & 0xfe) == 0x00) {
 		/* ns9360 or ns9750 */
 		if (NS9360_UART_ENABLED(NS9360_UARTA)) {

arch/arm/mach-omap2/board-rx51-peripherals.c

@@ -175,6 +175,10 @@ static void __init rx51_add_gpio_keys(void)
 #endif /* CONFIG_KEYBOARD_GPIO || CONFIG_KEYBOARD_GPIO_MODULE */
 
 static int board_keymap[] = {
+	/*
+	 * Note that KEY(x, 8, KEY_XXX) entries represent "entrire row
+	 * connected to the ground" matrix state.
+	 */
 	KEY(0, 0, KEY_Q),
 	KEY(0, 1, KEY_O),
 	KEY(0, 2, KEY_P),
@@ -182,6 +186,7 @@ static int board_keymap[] = {
 	KEY(0, 4, KEY_BACKSPACE),
 	KEY(0, 6, KEY_A),
 	KEY(0, 7, KEY_S),
+
 	KEY(1, 0, KEY_W),
 	KEY(1, 1, KEY_D),
 	KEY(1, 2, KEY_F),
@@ -190,6 +195,7 @@ static int board_keymap[] = {
 	KEY(1, 5, KEY_J),
 	KEY(1, 6, KEY_K),
 	KEY(1, 7, KEY_L),
+
 	KEY(2, 0, KEY_E),
 	KEY(2, 1, KEY_DOT),
 	KEY(2, 2, KEY_UP),
@@ -197,6 +203,8 @@ static int board_keymap[] = {
 	KEY(2, 5, KEY_Z),
 	KEY(2, 6, KEY_X),
 	KEY(2, 7, KEY_C),
+	KEY(2, 8, KEY_F9),
+
 	KEY(3, 0, KEY_R),
 	KEY(3, 1, KEY_V),
 	KEY(3, 2, KEY_B),
@@ -205,20 +213,23 @@ static int board_keymap[] = {
 	KEY(3, 5, KEY_SPACE),
 	KEY(3, 6, KEY_SPACE),
 	KEY(3, 7, KEY_LEFT),
+
 	KEY(4, 0, KEY_T),
 	KEY(4, 1, KEY_DOWN),
 	KEY(4, 2, KEY_RIGHT),
 	KEY(4, 4, KEY_LEFTCTRL),
 	KEY(4, 5, KEY_RIGHTALT),
 	KEY(4, 6, KEY_LEFTSHIFT),
+	KEY(4, 8, KEY_F10),
+
 	KEY(5, 0, KEY_Y),
+	KEY(5, 8, KEY_F11),
+
 	KEY(6, 0, KEY_U),
+
 	KEY(7, 0, KEY_I),
 	KEY(7, 1, KEY_F7),
 	KEY(7, 2, KEY_F8),
-	KEY(0xff, 2, KEY_F9),
-	KEY(0xff, 4, KEY_F10),
-	KEY(0xff, 5, KEY_F11),
 };
 
 static struct matrix_keymap_data board_map_data = {

arch/arm/mach-pxa/colibri-pxa300.c

@@ -26,6 +26,7 @@
 #include <mach/colibri.h>
 #include <mach/ohci.h>
 #include <mach/pxafb.h>
+#include <mach/audio.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -145,7 +146,7 @@ static void __init colibri_pxa300_init_lcd(void)
 static inline void colibri_pxa300_init_lcd(void) {}
 #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
 
-#if defined(SND_AC97_CODEC) || defined(SND_AC97_CODEC_MODULE)
+#if defined(CONFIG_SND_AC97_CODEC) || defined(CONFIG_SND_AC97_CODEC_MODULE)
 static mfp_cfg_t colibri_pxa310_ac97_pin_config[] __initdata = {
 	GPIO24_AC97_SYSCLK,
 	GPIO23_AC97_nACRESET,

arch/arm/mach-pxa/corgi.c

@@ -446,7 +446,7 @@ static struct platform_device corgiled_device = {
 static struct pxamci_platform_data corgi_mci_platform_data = {
 	.detect_delay_ms	= 250,
 	.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
-	.gpio_card_detect	= -1,
+	.gpio_card_detect	= CORGI_GPIO_nSD_DETECT,
 	.gpio_card_ro		= CORGI_GPIO_nSD_WP,
 	.gpio_power		= CORGI_GPIO_SD_PWR,
 };

arch/arm/mach-pxa/cpufreq-pxa2xx.c

@@ -256,13 +256,9 @@ static void init_sdram_rows(void)
 
 static u32 mdrefr_dri(unsigned int freq)
 {
-	u32 dri = 0;
+	u32 interval = freq * SDRAM_TREF / sdram_rows;
 
-	if (cpu_is_pxa25x())
-		dri = ((freq * SDRAM_TREF) / (sdram_rows * 32));
-	if (cpu_is_pxa27x())
-		dri = ((freq * SDRAM_TREF) / (sdram_rows - 31)) / 32;
-	return dri;
+	return (interval - (cpu_is_pxa27x() ? 31 : 0)) / 32;
 }
 
 /* find a valid frequency point */

arch/arm/mach-pxa/pxa27x.c

@@ -41,10 +41,10 @@ void pxa27x_clear_otgph(void)
 EXPORT_SYMBOL(pxa27x_clear_otgph);
 
 static unsigned long ac97_reset_config[] = {
-	GPIO95_AC97_nRESET,
-	GPIO95_GPIO,
-	GPIO113_AC97_nRESET,
 	GPIO113_GPIO,
+	GPIO113_AC97_nRESET,
+	GPIO95_GPIO,
+	GPIO95_AC97_nRESET,
 };
 
 void pxa27x_assert_ac97reset(int reset_gpio, int on)

arch/arm/mach-realview/core.c

@@ -237,7 +237,7 @@ static unsigned int realview_mmc_status(struct device *dev)
 	else
 		mask = 2;
 
-	return !(readl(REALVIEW_SYSMCI) & mask);
+	return readl(REALVIEW_SYSMCI) & mask;
 }
 
 struct mmci_platform_data realview_mmc0_plat_data = {

arch/arm/mach-shark/include/mach/debug-macro.S

@@ -20,6 +20,9 @@
 		strb	\rd, [\rx]
 		.endm
 
+		.macro waituart,rd,rx
+		.endm
+
 		.macro	busyuart,rd,rx
 		mov	\rd, #0
 1001:		add	\rd, \rd, #1

arch/arm/mach-ux500/include/mach/uncompress.h

@@ -30,22 +30,22 @@
 static void putc(const char c)
 {
 	/* Do nothing if the UART is not enabled. */
-	if (!(readb(U8500_UART_CR) & 0x1))
+	if (!(__raw_readb(U8500_UART_CR) & 0x1))
 		return;
 
 	if (c == '\n')
 		putc('\r');
 
-	while (readb(U8500_UART_FR) & (1 << 5))
+	while (__raw_readb(U8500_UART_FR) & (1 << 5))
 		barrier();
-	writeb(c, U8500_UART_DR);
+	__raw_writeb(c, U8500_UART_DR);
 }
 
 static void flush(void)
 {
-	if (!(readb(U8500_UART_CR) & 0x1))
+	if (!(__raw_readb(U8500_UART_CR) & 0x1))
 		return;
-	while (readb(U8500_UART_FR) & (1 << 3))
+	while (__raw_readb(U8500_UART_FR) & (1 << 3))
 		barrier();
 }
 

arch/arm/mach-vexpress/v2m.c

@@ -241,7 +241,7 @@ static struct platform_device v2m_flash_device = {
 
 static unsigned int v2m_mmci_status(struct device *dev)
 {
-	return !(readl(MMIO_P2V(V2M_SYS_MCI)) & (1 << 0));
+	return readl(MMIO_P2V(V2M_SYS_MCI)) & (1 << 0);
 }
 
 static struct mmci_platform_data v2m_mmci_data = {

arch/arm/mach-w90x900/cpu.c

@@ -93,7 +93,7 @@ static struct clk_lookup nuc900_clkregs[] = {
 	DEF_CLKLOOK(&clk_kpi, "nuc900-kpi", NULL),
 	DEF_CLKLOOK(&clk_wdt, "nuc900-wdt", NULL),
 	DEF_CLKLOOK(&clk_gdma, "nuc900-gdma", NULL),
-	DEF_CLKLOOK(&clk_adc, "nuc900-adc", NULL),
+	DEF_CLKLOOK(&clk_adc, "nuc900-ts", NULL),
 	DEF_CLKLOOK(&clk_usi, "nuc900-spi", NULL),
 	DEF_CLKLOOK(&clk_ext, NULL, "ext"),
 	DEF_CLKLOOK(&clk_timer0, NULL, "timer0"),

arch/arm/mm/cache-l2x0.c

@@ -32,14 +32,14 @@ static uint32_t l2x0_way_mask;	/* Bitmask of active ways */
 static inline void cache_wait(void __iomem *reg, unsigned long mask)
 {
 	/* wait for the operation to complete */
-	while (readl(reg) & mask)
+	while (readl_relaxed(reg) & mask)
 		;
 }
 
 static inline void cache_sync(void)
 {
 	void __iomem *base = l2x0_base;
-	writel(0, base + L2X0_CACHE_SYNC);
+	writel_relaxed(0, base + L2X0_CACHE_SYNC);
 	cache_wait(base + L2X0_CACHE_SYNC, 1);
 }
 
@@ -47,14 +47,14 @@ static inline void l2x0_clean_line(unsigned long addr)
 {
 	void __iomem *base = l2x0_base;
 	cache_wait(base + L2X0_CLEAN_LINE_PA, 1);
-	writel(addr, base + L2X0_CLEAN_LINE_PA);
+	writel_relaxed(addr, base + L2X0_CLEAN_LINE_PA);
 }
 
 static inline void l2x0_inv_line(unsigned long addr)
 {
 	void __iomem *base = l2x0_base;
 	cache_wait(base + L2X0_INV_LINE_PA, 1);
-	writel(addr, base + L2X0_INV_LINE_PA);
+	writel_relaxed(addr, base + L2X0_INV_LINE_PA);
 }
 
 #ifdef CONFIG_PL310_ERRATA_588369
@@ -75,9 +75,9 @@ static inline void l2x0_flush_line(unsigned long addr)
 
 	/* Clean by PA followed by Invalidate by PA */
 	cache_wait(base + L2X0_CLEAN_LINE_PA, 1);
-	writel(addr, base + L2X0_CLEAN_LINE_PA);
+	writel_relaxed(addr, base + L2X0_CLEAN_LINE_PA);
 	cache_wait(base + L2X0_INV_LINE_PA, 1);
-	writel(addr, base + L2X0_INV_LINE_PA);
+	writel_relaxed(addr, base + L2X0_INV_LINE_PA);
 }
 #else
 
@@ -90,7 +90,7 @@ static inline void l2x0_flush_line(unsigned long addr)
 {
 	void __iomem *base = l2x0_base;
 	cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
-	writel(addr, base + L2X0_CLEAN_INV_LINE_PA);
+	writel_relaxed(addr, base + L2X0_CLEAN_INV_LINE_PA);
 }
 #endif
 
@@ -109,7 +109,7 @@ static inline void l2x0_inv_all(void)
 
 	/* invalidate all ways */
 	spin_lock_irqsave(&l2x0_lock, flags);
-	writel(l2x0_way_mask, l2x0_base + L2X0_INV_WAY);
+	writel_relaxed(l2x0_way_mask, l2x0_base + L2X0_INV_WAY);
 	cache_wait(l2x0_base + L2X0_INV_WAY, l2x0_way_mask);
 	cache_sync();
 	spin_unlock_irqrestore(&l2x0_lock, flags);
@@ -215,8 +215,8 @@ void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
 
 	l2x0_base = base;
 
-	cache_id = readl(l2x0_base + L2X0_CACHE_ID);
-	aux = readl(l2x0_base + L2X0_AUX_CTRL);
+	cache_id = readl_relaxed(l2x0_base + L2X0_CACHE_ID);
+	aux = readl_relaxed(l2x0_base + L2X0_AUX_CTRL);
 
 	aux &= aux_mask;
 	aux |= aux_val;
@@ -248,15 +248,15 @@ void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
 	 * If you are booting from non-secure mode
 	 * accessing the below registers will fault.
 	 */
-	if (!(readl(l2x0_base + L2X0_CTRL) & 1)) {
+	if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & 1)) {
 
 		/* l2x0 controller is disabled */
-		writel(aux, l2x0_base + L2X0_AUX_CTRL);
+		writel_relaxed(aux, l2x0_base + L2X0_AUX_CTRL);
 
 		l2x0_inv_all();
 
 		/* enable L2X0 */
-		writel(1, l2x0_base + L2X0_CTRL);
+		writel_relaxed(1, l2x0_base + L2X0_CTRL);
 	}
 
 	outer_cache.inv_range = l2x0_inv_range;

arch/arm/mm/highmem.c

@@ -163,19 +163,22 @@ static DEFINE_PER_CPU(int, kmap_high_l1_vipt_depth);
 
 void *kmap_high_l1_vipt(struct page *page, pte_t *saved_pte)
 {
-	unsigned int idx, cpu = smp_processor_id();
-	int *depth = &per_cpu(kmap_high_l1_vipt_depth, cpu);
+	unsigned int idx, cpu;
+	int *depth;
 	unsigned long vaddr, flags;
 	pte_t pte, *ptep;
 
+	if (!in_interrupt())
+		preempt_disable();
+
+	cpu = smp_processor_id();
+	depth = &per_cpu(kmap_high_l1_vipt_depth, cpu);
+
 	idx = KM_L1_CACHE + KM_TYPE_NR * cpu;
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 	ptep = TOP_PTE(vaddr);
 	pte = mk_pte(page, kmap_prot);
 
-	if (!in_interrupt())
-		preempt_disable();
-
 	raw_local_irq_save(flags);
 	(*depth)++;
 	if (pte_val(*ptep) == pte_val(pte)) {

arch/arm/plat-spear/include/plat/debug-macro.S

@@ -17,8 +17,8 @@
 		.macro	addruart, rx
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1					@ MMU enabled?
-		moveq	\rx, =SPEAR_DBG_UART_BASE		@ Physical base
-		movne	\rx, =VA_SPEAR_DBG_UART_BASE		@ Virtual base
+		moveq	\rx, #SPEAR_DBG_UART_BASE		@ Physical base
+		movne	\rx, #VA_SPEAR_DBG_UART_BASE		@ Virtual base
 		.endm
 
 		.macro	senduart, rd, rx

arch/avr32/include/asm/ioctls.h

@@ -54,6 +54,9 @@
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
 
+#define TIOCGRS485      0x542E
+#define TIOCSRS485      0x542F
+
 #define FIONCLEX	0x5450
 #define FIOCLEX		0x5451
 #define FIOASYNC	0x5452

arch/avr32/mach-at32ap/include/mach/board.h

@@ -5,6 +5,7 @@
 #define __ASM_ARCH_BOARD_H
 
 #include <linux/types.h>
+#include <linux/serial.h>
 
 #define GPIO_PIN_NONE	(-1)
 
@@ -35,6 +36,7 @@ struct atmel_uart_data {
 	short		use_dma_tx;	/* use transmit DMA? */
 	short		use_dma_rx;	/* use receive DMA? */
 	void __iomem	*regs;		/* virtual base address, if any */
+	struct serial_rs485	rs485;		/* rs485 settings */
 };
 void at32_map_usart(unsigned int hw_id, unsigned int line, int flags);
 struct platform_device *at32_add_device_usart(unsigned int id);

arch/mips/alchemy/common/platform.c

@@ -435,20 +435,21 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = {
 static int __init au1xxx_platform_init(void)
 {
 	unsigned int uartclk = get_au1x00_uart_baud_base() * 16;
-	int i;
+	int err, i;
 
 	/* Fill up uartclk. */
 	for (i = 0; au1x00_uart_data[i].flags; i++)
 		au1x00_uart_data[i].uartclk = uartclk;
 
+	err = platform_add_devices(au1xxx_platform_devices,
+				   ARRAY_SIZE(au1xxx_platform_devices));
 #ifndef CONFIG_SOC_AU1100
 	/* Register second MAC if enabled in pinfunc */
-	if (!(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2))
+	if (!err && !(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2))
 		platform_device_register(&au1xxx_eth1_device);
 #endif
 
-	return platform_add_devices(au1xxx_platform_devices,
-				    ARRAY_SIZE(au1xxx_platform_devices));
+	return err;
 }
 
 arch_initcall(au1xxx_platform_init);

arch/mips/alchemy/mtx-1/board_setup.c

@@ -67,8 +67,6 @@ static void mtx1_power_off(void)
 
 void __init board_setup(void)
 {
-	alchemy_gpio2_enable();
-
 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 	/* Enable USB power switch */
 	alchemy_gpio_direction_output(204, 0);
@@ -117,11 +115,11 @@ mtx1_pci_idsel(unsigned int devsel, int assert)
 
 	if (assert && devsel != 0)
 		/* Suppress signal to Cardbus */
-		gpio_set_value(1, 0);	/* set EXT_IO3 OFF */
+		alchemy_gpio_set_value(1, 0);	/* set EXT_IO3 OFF */
 	else
-		gpio_set_value(1, 1);	/* set EXT_IO3 ON */
+		alchemy_gpio_set_value(1, 1);	/* set EXT_IO3 ON */
 
-	au_sync_udelay(1);
+	udelay(1);
 	return 1;
 }
 

arch/mips/bcm63xx/dev-enet.c

@@ -104,6 +104,9 @@ int __init bcm63xx_enet_register(int unit,
 	if (unit > 1)
 		return -ENODEV;
 
+	if (unit == 1 && BCMCPU_IS_6338())
+		return -ENODEV;
+
 	if (!shared_device_registered) {
 		shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
 		shared_res[0].end = shared_res[0].start;

arch/mips/include/asm/atomic.h

@@ -434,7 +434,7 @@ static __inline__ void atomic64_add(long i, atomic64_t * v)
 		__asm__ __volatile__(
 		"	.set	mips3					\n"
 		"1:	lld	%0, %1		# atomic64_add		\n"
-		"	addu	%0, %2					\n"
+		"	daddu	%0, %2					\n"
 		"	scd	%0, %1					\n"
 		"	beqzl	%0, 1b					\n"
 		"	.set	mips0					\n"
@@ -446,7 +446,7 @@ static __inline__ void atomic64_add(long i, atomic64_t * v)
 		__asm__ __volatile__(
 		"	.set	mips3					\n"
 		"1:	lld	%0, %1		# atomic64_add		\n"
-		"	addu	%0, %2					\n"
+		"	daddu	%0, %2					\n"
 		"	scd	%0, %1					\n"
 		"	beqz	%0, 2f					\n"
 		"	.subsection 2					\n"
@@ -479,7 +479,7 @@ static __inline__ void atomic64_sub(long i, atomic64_t * v)
 		__asm__ __volatile__(
 		"	.set	mips3					\n"
 		"1:	lld	%0, %1		# atomic64_sub		\n"
-		"	subu	%0, %2					\n"
+		"	dsubu	%0, %2					\n"
 		"	scd	%0, %1					\n"
 		"	beqzl	%0, 1b					\n"
 		"	.set	mips0					\n"
@@ -491,7 +491,7 @@ static __inline__ void atomic64_sub(long i, atomic64_t * v)
 		__asm__ __volatile__(
 		"	.set	mips3					\n"
 		"1:	lld	%0, %1		# atomic64_sub		\n"
-		"	subu	%0, %2					\n"
+		"	dsubu	%0, %2					\n"
 		"	scd	%0, %1					\n"
 		"	beqz	%0, 2f					\n"
 		"	.subsection 2					\n"
@@ -524,10 +524,10 @@ static __inline__ long atomic64_add_return(long i, atomic64_t * v)
 		__asm__ __volatile__(
 		"	.set	mips3					\n"
 		"1:	lld	%1, %2		# atomic64_add_return	\n"
-		"	addu	%0, %1, %3				\n"
+		"	daddu	%0, %1, %3				\n"
 		"	scd	%0, %2					\n"
 		"	beqzl	%0, 1b					\n"
-		"	addu	%0, %1, %3				\n"
+		"	daddu	%0, %1, %3				\n"
 		"	.set	mips0					\n"
 		: "=&r" (result), "=&r" (temp), "=m" (v->counter)
 		: "Ir" (i), "m" (v->counter)
@@ -538,10 +538,10 @@ static __inline__ long atomic64_add_return(long i, atomic64_t * v)
 		__asm__ __volatile__(
 		"	.set	mips3					\n"
 		"1:	lld	%1, %2		# atomic64_add_return	\n"
-		"	addu	%0, %1, %3				\n"
+		"	daddu	%0, %1, %3				\n"
 		"	scd	%0, %2					\n"
 		"	beqz	%0, 2f					\n"
-		"	addu	%0, %1, %3				\n"
+		"	daddu	%0, %1, %3				\n"
 		"	.subsection 2					\n"
 		"2:	b	1b					\n"
 		"	.previous					\n"
@@ -576,10 +576,10 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
 		__asm__ __volatile__(
 		"	.set	mips3					\n"
 		"1:	lld	%1, %2		# atomic64_sub_return	\n"
-		"	subu	%0, %1, %3				\n"
+		"	dsubu	%0, %1, %3				\n"
 		"	scd	%0, %2					\n"
 		"	beqzl	%0, 1b					\n"
-		"	subu	%0, %1, %3				\n"
+		"	dsubu	%0, %1, %3				\n"
 		"	.set	mips0					\n"
 		: "=&r" (result), "=&r" (temp), "=m" (v->counter)
 		: "Ir" (i), "m" (v->counter)
@@ -590,10 +590,10 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
 		__asm__ __volatile__(
 		"	.set	mips3					\n"
 		"1:	lld	%1, %2		# atomic64_sub_return	\n"
-		"	subu	%0, %1, %3				\n"
+		"	dsubu	%0, %1, %3				\n"
 		"	scd	%0, %2					\n"
 		"	beqz	%0, 2f					\n"
-		"	subu	%0, %1, %3				\n"
+		"	dsubu	%0, %1, %3				\n"
 		"	.subsection 2					\n"
 		"2:	b	1b					\n"
 		"	.previous					\n"

arch/mips/include/asm/unistd.h

@@ -984,16 +984,17 @@
 #define __NR_perf_event_open		(__NR_Linux + 296)
 #define __NR_accept4			(__NR_Linux + 297)
 #define __NR_recvmmsg			(__NR_Linux + 298)
+#define __NR_getdents64			(__NR_Linux + 299)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		298
+#define __NR_Linux_syscalls		299
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		298
+#define __NR_N32_Linux_syscalls		299
 
 #ifdef __KERNEL__
 

arch/mips/kernel/scall64-n32.S

@@ -419,4 +419,5 @@ EXPORT(sysn32_call_table)
 	PTR	sys_perf_event_open
 	PTR	sys_accept4
 	PTR     compat_sys_recvmmsg
+	PTR     sys_getdents
 	.size	sysn32_call_table,.-sysn32_call_table

arch/mips/kernel/vdso.c

@@ -61,11 +61,9 @@ static int __init init_vdso(void)
 
 	vunmap(vdso);
 
-	pr_notice("init_vdso successfull\n");
-
 	return 0;
 }
-device_initcall(init_vdso);
+subsys_initcall(init_vdso);
 
 static unsigned long vdso_addr(unsigned long start)
 {

arch/mips/mti-malta/malta-pci.c

@@ -247,6 +247,8 @@ void __init mips_pcibios_init(void)
 	iomem_resource.end &= 0xfffffffffULL;			/* 64 GB */
 	ioport_resource.end = controller->io_resource->end;
 
+	controller->io_map_base = mips_io_port_base;
+
 	register_pci_controller(controller);
 }
 

arch/mips/nxp/pnx8550/common/pci.c

@@ -44,6 +44,7 @@ extern struct pci_ops pnx8550_pci_ops;
 
 static struct pci_controller pnx8550_controller = {
 	.pci_ops	= &pnx8550_pci_ops,
+	.io_map_base	= PNX8550_PORT_BASE,
 	.io_resource	= &pci_io_resource,
 	.mem_resource	= &pci_mem_resource,
 };

arch/mips/nxp/pnx8550/common/setup.c

@@ -113,7 +113,7 @@ void __init plat_mem_setup(void)
 	PNX8550_GLB2_ENAB_INTA_O = 0;
 
 	/* IO/MEM resources. */
-	set_io_port_base(KSEG1);
+	set_io_port_base(PNX8550_PORT_BASE);
 	ioport_resource.start = 0;
 	ioport_resource.end = ~0;
 	iomem_resource.start = 0;

arch/mips/pci/ops-pmcmsp.c

@@ -944,6 +944,7 @@ static struct pci_controller msp_pci_controller = {
 	.pci_ops	= &msp_pci_ops,
 	.mem_resource	= &pci_mem_resource,
 	.mem_offset	= 0,
+	.io_map_base	= MSP_PCI_IOSPACE_BASE,
 	.io_resource	= &pci_io_resource,
 	.io_offset	= 0
 };

arch/mips/pci/pci-yosemite.c

@@ -54,6 +54,7 @@ static int __init pmc_yosemite_setup(void)
 		panic(ioremap_failed);
 
 	set_io_port_base(io_v_base);
+	py_controller.io_map_base = io_v_base;
 	TITAN_WRITE(RM9000x2_OCD_LKM7, TITAN_READ(RM9000x2_OCD_LKM7) | 1);
 
 	ioport_resource.end = TITAN_IO_SIZE - 1;

arch/mips/powertv/asic/asic_devices.c

@@ -472,6 +472,9 @@ void __init configure_platform(void)
 		 * it*/
 		platform_features = FFS_CAPABLE | DISPLAY_CAPABLE;
 
+		/* Cronus and Cronus Lite have the same register map */
+		set_register_map(CRONUS_IO_BASE, &cronus_register_map);
+
 		/* ASIC version will determine if this is a real CronusLite or
 		 * Castrati(Cronus) */
 		chipversion  = asic_read(chipver3) << 24;
@@ -484,8 +487,6 @@ void __init configure_platform(void)
 		else
 			asic = ASIC_CRONUSLITE;
 
-		/* Cronus and Cronus Lite have the same register map */
-		set_register_map(CRONUS_IO_BASE, &cronus_register_map);
 		gp_resources = non_dvr_cronuslite_resources;
 		pr_info("Platform: 4600 - %s, NON_DVR_CAPABLE, "
 			"chipversion=0x%08X\n",

arch/powerpc/include/asm/kexec.h

@@ -8,9 +8,9 @@
  * On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory
  * and therefore we can only deal with memory within this range
  */
-#define KEXEC_SOURCE_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL)
-#define KEXEC_DESTINATION_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL)
-#define KEXEC_CONTROL_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL)
+#define KEXEC_SOURCE_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL - 1)
+#define KEXEC_DESTINATION_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL - 1)
+#define KEXEC_CONTROL_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL - 1)
 
 #else
 

arch/powerpc/include/asm/mmu-hash64.h

@@ -250,7 +250,9 @@ extern int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
 int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
 		     pte_t *ptep, unsigned long trap, int local, int ssize,
 		     unsigned int shift, unsigned int mmu_psize);
-
+extern void hash_failure_debug(unsigned long ea, unsigned long access,
+			       unsigned long vsid, unsigned long trap,
+			       int ssize, int psize, unsigned long pte);
 extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
 			     unsigned long pstart, unsigned long prot,
 			     int psize, int ssize);

arch/powerpc/kernel/perf_event_fsl_emb.c

@@ -566,9 +566,9 @@ static void record_and_restart(struct perf_event *event, unsigned long val,
 	 * Finally record data if requested.
 	 */
 	if (record) {
-		struct perf_sample_data data = {
-			.period	= event->hw.last_period,
-		};
+		struct perf_sample_data data;
+
+		perf_sample_data_init(&data, 0);
 
 		if (perf_event_overflow(event, nmi, &data, regs)) {
 			/*

arch/powerpc/kernel/prom.c

@@ -414,7 +414,7 @@ static int __init early_init_dt_scan_drconf_memory(unsigned long node)
 	u64 base, size, memblock_size;
 	unsigned int is_kexec_kdump = 0, rngs;
 
-	ls = of_get_flat_dt_prop(node, "ibm,memblock-size", &l);
+	ls = of_get_flat_dt_prop(node, "ibm,lmb-size", &l);
 	if (ls == NULL || l < dt_root_size_cells * sizeof(__be32))
 		return 0;
 	memblock_size = dt_mem_next_cell(dt_root_size_cells, &ls);

arch/powerpc/mm/hash_low_64.S

@@ -68,9 +68,6 @@ _GLOBAL(__hash_page_4K)
 	std	r8,STK_PARM(r8)(r1)
 	std	r9,STK_PARM(r9)(r1)
 	
-	/* Add _PAGE_PRESENT to access */
-	ori	r4,r4,_PAGE_PRESENT
-
 	/* Save non-volatile registers.
 	 * r31 will hold "old PTE"
 	 * r30 is "new PTE"
@@ -347,9 +344,6 @@ _GLOBAL(__hash_page_4K)
 	std	r8,STK_PARM(r8)(r1)
 	std	r9,STK_PARM(r9)(r1)
 
-	/* Add _PAGE_PRESENT to access */
-	ori	r4,r4,_PAGE_PRESENT
-
 	/* Save non-volatile registers.
 	 * r31 will hold "old PTE"
 	 * r30 is "new PTE"
@@ -687,9 +681,6 @@ _GLOBAL(__hash_page_64K)
 	std	r8,STK_PARM(r8)(r1)
 	std	r9,STK_PARM(r9)(r1)
 
-	/* Add _PAGE_PRESENT to access */
-	ori	r4,r4,_PAGE_PRESENT
-
 	/* Save non-volatile registers.
 	 * r31 will hold "old PTE"
 	 * r30 is "new PTE"

arch/powerpc/mm/hash_utils_64.c

@@ -871,6 +871,18 @@ static inline int subpage_protection(struct mm_struct *mm, unsigned long ea)
 }
 #endif
 
+void hash_failure_debug(unsigned long ea, unsigned long access,
+			unsigned long vsid, unsigned long trap,
+			int ssize, int psize, unsigned long pte)
+{
+	if (!printk_ratelimit())
+		return;
+	pr_info("mm: Hashing failure ! EA=0x%lx access=0x%lx current=%s\n",
+		ea, access, current->comm);
+	pr_info("    trap=0x%lx vsid=0x%lx ssize=%d psize=%d pte=0x%lx\n",
+		trap, vsid, ssize, psize, pte);
+}
+
 /* Result code is:
  *  0 - handled
  *  1 - normal page fault
@@ -955,6 +967,17 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
 		return 1;
 	}
 
+	/* Add _PAGE_PRESENT to the required access perm */
+	access |= _PAGE_PRESENT;
+
+	/* Pre-check access permissions (will be re-checked atomically
+	 * in __hash_page_XX but this pre-check is a fast path
+	 */
+	if (access & ~pte_val(*ptep)) {
+		DBG_LOW(" no access !\n");
+		return 1;
+	}
+
 #ifdef CONFIG_HUGETLB_PAGE
 	if (hugeshift)
 		return __hash_page_huge(ea, access, vsid, ptep, trap, local,
@@ -967,14 +990,6 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
 	DBG_LOW(" i-pte: %016lx %016lx\n", pte_val(*ptep),
 		pte_val(*(ptep + PTRS_PER_PTE)));
 #endif
-	/* Pre-check access permissions (will be re-checked atomically
-	 * in __hash_page_XX but this pre-check is a fast path
-	 */
-	if (access & ~pte_val(*ptep)) {
-		DBG_LOW(" no access !\n");
-		return 1;
-	}
-
 	/* Do actual hashing */
 #ifdef CONFIG_PPC_64K_PAGES
 	/* If _PAGE_4K_PFN is set, make sure this is a 4k segment */
@@ -1033,6 +1048,12 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
 					    local, ssize, spp);
 	}
 
+	/* Dump some info in case of hash insertion failure, they should
+	 * never happen so it is really useful to know if/when they do
+	 */
+	if (rc == -1)
+		hash_failure_debug(ea, access, vsid, trap, ssize, psize,
+				   pte_val(*ptep));
 #ifndef CONFIG_PPC_64K_PAGES
 	DBG_LOW(" o-pte: %016lx\n", pte_val(*ptep));
 #else
@@ -1051,8 +1072,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
 	void *pgdir;
 	pte_t *ptep;
 	unsigned long flags;
-	int local = 0;
-	int ssize;
+	int rc, ssize, local = 0;
 
 	BUG_ON(REGION_ID(ea) != USER_REGION_ID);
 
@@ -1098,11 +1118,18 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
 	/* Hash it in */
 #ifdef CONFIG_PPC_HAS_HASH_64K
 	if (mm->context.user_psize == MMU_PAGE_64K)
-		__hash_page_64K(ea, access, vsid, ptep, trap, local, ssize);
+		rc = __hash_page_64K(ea, access, vsid, ptep, trap, local, ssize);
 	else
 #endif /* CONFIG_PPC_HAS_HASH_64K */
-		__hash_page_4K(ea, access, vsid, ptep, trap, local, ssize,
-			       subpage_protection(pgdir, ea));
+		rc = __hash_page_4K(ea, access, vsid, ptep, trap, local, ssize,
+				    subpage_protection(pgdir, ea));
+
+	/* Dump some info in case of hash insertion failure, they should
+	 * never happen so it is really useful to know if/when they do
+	 */
+	if (rc == -1)
+		hash_failure_debug(ea, access, vsid, trap, ssize,
+				   mm->context.user_psize, pte_val(*ptep));
 
 	local_irq_restore(flags);
 }

arch/powerpc/mm/hugetlbpage-hash64.c

@@ -21,21 +21,13 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
 	unsigned long old_pte, new_pte;
 	unsigned long va, rflags, pa, sz;
 	long slot;
-	int err = 1;
 
 	BUG_ON(shift != mmu_psize_defs[mmu_psize].shift);
 
 	/* Search the Linux page table for a match with va */
 	va = hpt_va(ea, vsid, ssize);
 
-	/*
-	 * Check the user's access rights to the page.  If access should be
-	 * prevented then send the problem up to do_page_fault.
-	 */
-	if (unlikely(access & ~pte_val(*ptep)))
-		goto out;
-	/*
-	 * At this point, we have a pte (old_pte) which can be used to build
+	/* At this point, we have a pte (old_pte) which can be used to build
 	 * or update an HPTE. There are 2 cases:
 	 *
 	 * 1. There is a valid (present) pte with no associated HPTE (this is
@@ -49,9 +41,17 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
 
 	do {
 		old_pte = pte_val(*ptep);
-		if (old_pte & _PAGE_BUSY)
-			goto out;
+		/* If PTE busy, retry the access */
+		if (unlikely(old_pte & _PAGE_BUSY))
+			return 0;
+		/* If PTE permissions don't match, take page fault */
+		if (unlikely(access & ~old_pte))
+			return 1;
+		/* Try to lock the PTE, add ACCESSED and DIRTY if it was
+		 * a write access */
 		new_pte = old_pte | _PAGE_BUSY | _PAGE_ACCESSED;
+		if (access & _PAGE_RW)
+			new_pte |= _PAGE_DIRTY;
 	} while(old_pte != __cmpxchg_u64((unsigned long *)ptep,
 					 old_pte, new_pte));
 
@@ -121,8 +121,16 @@ repeat:
                         }
 		}
 
-		if (unlikely(slot == -2))
-			panic("hash_huge_page: pte_insert failed\n");
+		/*
+		 * Hypervisor failure. Restore old pte and return -1
+		 * similar to __hash_page_*
+		 */
+		if (unlikely(slot == -2)) {
+			*ptep = __pte(old_pte);
+			hash_failure_debug(ea, access, vsid, trap, ssize,
+					   mmu_psize, old_pte);
+			return -1;
+		}
 
 		new_pte |= (slot << 12) & (_PAGE_F_SECOND | _PAGE_F_GIX);
 	}
@@ -131,9 +139,5 @@ repeat:
 	 * No need to use ldarx/stdcx here
 	 */
 	*ptep = __pte(new_pte & ~_PAGE_BUSY);
-
-	err = 0;
-
- out:
-	return err;
+	return 0;
 }

arch/powerpc/mm/numa.c

@@ -398,15 +398,15 @@ static int of_get_drconf_memory(struct device_node *memory, const u32 **dm)
 }
 
 /*
- * Retreive and validate the ibm,memblock-size property for drconf memory
+ * Retreive and validate the ibm,lmb-size property for drconf memory
  * from the device tree.
  */
-static u64 of_get_memblock_size(struct device_node *memory)
+static u64 of_get_lmb_size(struct device_node *memory)
 {
 	const u32 *prop;
 	u32 len;
 
-	prop = of_get_property(memory, "ibm,memblock-size", &len);
+	prop = of_get_property(memory, "ibm,lmb-size", &len);
 	if (!prop || len < sizeof(unsigned int))
 		return 0;
 
@@ -562,7 +562,7 @@ static unsigned long __init numa_enforce_memory_limit(unsigned long start,
 static inline int __init read_usm_ranges(const u32 **usm)
 {
 	/*
-	 * For each memblock in ibm,dynamic-memory a corresponding
+	 * For each lmb in ibm,dynamic-memory a corresponding
 	 * entry in linux,drconf-usable-memory property contains
 	 * a counter followed by that many (base, size) duple.
 	 * read the counter from linux,drconf-usable-memory
@@ -578,7 +578,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
 {
 	const u32 *dm, *usm;
 	unsigned int n, rc, ranges, is_kexec_kdump = 0;
-	unsigned long memblock_size, base, size, sz;
+	unsigned long lmb_size, base, size, sz;
 	int nid;
 	struct assoc_arrays aa;
 
@@ -586,8 +586,8 @@ static void __init parse_drconf_memory(struct device_node *memory)
 	if (!n)
 		return;
 
-	memblock_size = of_get_memblock_size(memory);
-	if (!memblock_size)
+	lmb_size = of_get_lmb_size(memory);
+	if (!lmb_size)
 		return;
 
 	rc = of_get_assoc_arrays(memory, &aa);
@@ -611,7 +611,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
 			continue;
 
 		base = drmem.base_addr;
-		size = memblock_size;
+		size = lmb_size;
 		ranges = 1;
 
 		if (is_kexec_kdump) {
@@ -1072,7 +1072,7 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
 {
 	const u32 *dm;
 	unsigned int drconf_cell_cnt, rc;
-	unsigned long memblock_size;
+	unsigned long lmb_size;
 	struct assoc_arrays aa;
 	int nid = -1;
 
@@ -1080,8 +1080,8 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
 	if (!drconf_cell_cnt)
 		return -1;
 
-	memblock_size = of_get_memblock_size(memory);
-	if (!memblock_size)
+	lmb_size = of_get_lmb_size(memory);
+	if (!lmb_size)
 		return -1;
 
 	rc = of_get_assoc_arrays(memory, &aa);
@@ -1100,7 +1100,7 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
 			continue;
 
 		if ((scn_addr < drmem.base_addr)
-		    || (scn_addr >= (drmem.base_addr + memblock_size)))
+		    || (scn_addr >= (drmem.base_addr + lmb_size)))
 			continue;
 
 		nid = of_drconf_to_nid_single(&drmem, &aa);

arch/powerpc/platforms/pseries/hotplug-memory.c

@@ -69,7 +69,7 @@ static int pseries_remove_memory(struct device_node *np)
 	const char *type;
 	const unsigned int *regs;
 	unsigned long base;
-	unsigned int memblock_size;
+	unsigned int lmb_size;
 	int ret = -EINVAL;
 
 	/*
@@ -87,9 +87,9 @@ static int pseries_remove_memory(struct device_node *np)
 		return ret;
 
 	base = *(unsigned long *)regs;
-	memblock_size = regs[3];
+	lmb_size = regs[3];
 
-	ret = pseries_remove_memblock(base, memblock_size);
+	ret = pseries_remove_memblock(base, lmb_size);
 	return ret;
 }
 
@@ -98,7 +98,7 @@ static int pseries_add_memory(struct device_node *np)
 	const char *type;
 	const unsigned int *regs;
 	unsigned long base;
-	unsigned int memblock_size;
+	unsigned int lmb_size;
 	int ret = -EINVAL;
 
 	/*
@@ -116,36 +116,36 @@ static int pseries_add_memory(struct device_node *np)
 		return ret;
 
 	base = *(unsigned long *)regs;
-	memblock_size = regs[3];
+	lmb_size = regs[3];
 
 	/*
 	 * Update memory region to represent the memory add
 	 */
-	ret = memblock_add(base, memblock_size);
+	ret = memblock_add(base, lmb_size);
 	return (ret < 0) ? -EINVAL : 0;
 }
 
 static int pseries_drconf_memory(unsigned long *base, unsigned int action)
 {
 	struct device_node *np;
-	const unsigned long *memblock_size;
+	const unsigned long *lmb_size;
 	int rc;
 
 	np = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
 	if (!np)
 		return -EINVAL;
 
-	memblock_size = of_get_property(np, "ibm,memblock-size", NULL);
-	if (!memblock_size) {
+	lmb_size = of_get_property(np, "ibm,lmb-size", NULL);
+	if (!lmb_size) {
 		of_node_put(np);
 		return -EINVAL;
 	}
 
 	if (action == PSERIES_DRCONF_MEM_ADD) {
-		rc = memblock_add(*base, *memblock_size);
+		rc = memblock_add(*base, *lmb_size);
 		rc = (rc < 0) ? -EINVAL : 0;
 	} else if (action == PSERIES_DRCONF_MEM_REMOVE) {
-		rc = pseries_remove_memblock(*base, *memblock_size);
+		rc = pseries_remove_memblock(*base, *lmb_size);
 	} else {
 		rc = -EINVAL;
 	}

arch/s390/kernel/entry.S

@@ -535,8 +535,16 @@ pgm_no_vtime2:
 	l	%r3,__LC_PGM_ILC	# load program interruption code
 	la	%r8,0x7f
 	nr	%r8,%r3 		# clear per-event-bit and ilc
-	be	BASED(pgm_exit)		# only per or per+check ?
-	b	BASED(pgm_do_call)
+	be	BASED(pgm_exit2)	# only per or per+check ?
+	l	%r7,BASED(.Ljump_table)
+	sll	%r8,2
+	l	%r7,0(%r8,%r7)		# load address of handler routine
+	la	%r2,SP_PTREGS(%r15)	# address of register-save area
+	basr	%r14,%r7		# branch to interrupt-handler
+pgm_exit2:
+	TRACE_IRQS_ON
+	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	b	BASED(sysc_return)
 
 #
 # it was a single stepped SVC that is causing all the trouble

arch/s390/kernel/entry64.S

@@ -544,8 +544,16 @@ pgm_no_vtime2:
 	lgf	%r3,__LC_PGM_ILC	# load program interruption code
 	lghi	%r8,0x7f
 	ngr	%r8,%r3			# clear per-event-bit and ilc
-	je	pgm_exit
-	j	pgm_do_call
+	je	pgm_exit2
+	sll	%r8,3
+	larl	%r1,pgm_check_table
+	lg	%r1,0(%r8,%r1)		# load address of handler routine
+	la	%r2,SP_PTREGS(%r15)	# address of register-save area
+	basr	%r14,%r1		# branch to interrupt-handler
+pgm_exit2:
+	TRACE_IRQS_ON
+	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	j	sysc_return
 
 #
 # it was a single stepped SVC that is causing all the trouble

arch/s390/kernel/time.c

@@ -524,8 +524,11 @@ void etr_switch_to_local(void)
 	if (!etr_eacr.sl)
 		return;
 	disable_sync_clock(NULL);
-	set_bit(ETR_EVENT_SWITCH_LOCAL, &etr_events);
-	queue_work(time_sync_wq, &etr_work);
+	if (!test_and_set_bit(ETR_EVENT_SWITCH_LOCAL, &etr_events)) {
+		etr_eacr.es = etr_eacr.sl = 0;
+		etr_setr(&etr_eacr);
+		queue_work(time_sync_wq, &etr_work);
+	}
 }
 
 /*
@@ -539,8 +542,11 @@ void etr_sync_check(void)
 	if (!etr_eacr.es)
 		return;
 	disable_sync_clock(NULL);
-	set_bit(ETR_EVENT_SYNC_CHECK, &etr_events);
-	queue_work(time_sync_wq, &etr_work);
+	if (!test_and_set_bit(ETR_EVENT_SYNC_CHECK, &etr_events)) {
+		etr_eacr.es = 0;
+		etr_setr(&etr_eacr);
+		queue_work(time_sync_wq, &etr_work);
+	}
 }
 
 /*
@@ -902,7 +908,7 @@ static struct etr_eacr etr_handle_update(struct etr_aib *aib,
 	 * Do not try to get the alternate port aib if the clock
 	 * is not in sync yet.
 	 */
-	if (!check_sync_clock())
+	if (!eacr.es || !check_sync_clock())
 		return eacr;
 
 	/*
@@ -1064,7 +1070,7 @@ static void etr_work_fn(struct work_struct *work)
 	 * If the clock is in sync just update the eacr and return.
 	 * If there is no valid sync port wait for a port update.
 	 */
-	if (check_sync_clock() || sync_port < 0) {
+	if ((eacr.es && check_sync_clock()) || sync_port < 0) {
 		etr_update_eacr(eacr);
 		etr_set_tolec_timeout(now);
 		goto out_unlock;

arch/x86/kernel/acpi/cstate.c

@@ -145,6 +145,15 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
 		percpu_entry->states[cx->index].eax = cx->address;
 		percpu_entry->states[cx->index].ecx = MWAIT_ECX_INTERRUPT_BREAK;
 	}
+
+	/*
+	 * For _CST FFH on Intel, if GAS.access_size bit 1 is cleared,
+	 * then we should skip checking BM_STS for this C-state.
+	 * ref: "Intel Processor Vendor-Specific ACPI Interface Specification"
+	 */
+	if ((c->x86_vendor == X86_VENDOR_INTEL) && !(reg->access_size & 0x2))
+		cx->bm_sts_skip = 1;
+
 	return retval;
 }
 EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_probe);

arch/x86/kernel/acpi/sleep.c

@@ -157,9 +157,14 @@ static int __init acpi_sleep_setup(char *str)
 #ifdef CONFIG_HIBERNATION
 		if (strncmp(str, "s4_nohwsig", 10) == 0)
 			acpi_no_s4_hw_signature();
-		if (strncmp(str, "s4_nonvs", 8) == 0)
-			acpi_s4_no_nvs();
+		if (strncmp(str, "s4_nonvs", 8) == 0) {
+			pr_warning("ACPI: acpi_sleep=s4_nonvs is deprecated, "
+					"please use acpi_sleep=nonvs instead");
+			acpi_nvs_nosave();
+		}
 #endif
+		if (strncmp(str, "nonvs", 5) == 0)
+			acpi_nvs_nosave();
 		if (strncmp(str, "old_ordering", 12) == 0)
 			acpi_old_suspend_ordering();
 		str = strchr(str, ',');

arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c

@@ -368,22 +368,16 @@ static int __init pcc_cpufreq_do_osc(acpi_handle *handle)
 		return -ENODEV;
 
 	out_obj = output.pointer;
-	if (out_obj->type != ACPI_TYPE_BUFFER) {
-		ret = -ENODEV;
-		goto out_free;
-	}
+	if (out_obj->type != ACPI_TYPE_BUFFER)
+		return -ENODEV;
 
 	errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0);
-	if (errors) {
-		ret = -ENODEV;
-		goto out_free;
-	}
+	if (errors)
+		return -ENODEV;
 
 	supported = *((u32 *)(out_obj->buffer.pointer + 4));
-	if (!(supported & 0x1)) {
-		ret = -ENODEV;
-		goto out_free;
-	}
+	if (!(supported & 0x1))
+		return -ENODEV;
 
 out_free:
 	kfree(output.pointer);
@@ -397,13 +391,17 @@ static int __init pcc_cpufreq_probe(void)
 	struct pcc_memory_resource *mem_resource;
 	struct pcc_register_resource *reg_resource;
 	union acpi_object *out_obj, *member;
-	acpi_handle handle, osc_handle;
+	acpi_handle handle, osc_handle, pcch_handle;
 	int ret = 0;
 
 	status = acpi_get_handle(NULL, "\\_SB", &handle);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
+	status = acpi_get_handle(handle, "PCCH", &pcch_handle);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
 	status = acpi_get_handle(handle, "_OSC", &osc_handle);
 	if (ACPI_SUCCESS(status)) {
 		ret = pcc_cpufreq_do_osc(&osc_handle);
@@ -543,13 +541,13 @@ static int pcc_cpufreq_cpu_init(struct cpufreq_policy *policy)
 
 	if (!pcch_virt_addr) {
 		result = -1;
-		goto pcch_null;
+		goto out;
 	}
 
 	result = pcc_get_offset(cpu);
 	if (result) {
 		dprintk("init: PCCP evaluation failed\n");
-		goto free;
+		goto out;
 	}
 
 	policy->max = policy->cpuinfo.max_freq =
@@ -558,14 +556,15 @@ static int pcc_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		ioread32(&pcch_hdr->minimum_frequency) * 1000;
 	policy->cur = pcc_get_freq(cpu);
 
+	if (!policy->cur) {
+		dprintk("init: Unable to get current CPU frequency\n");
+		result = -EINVAL;
+		goto out;
+	}
+
 	dprintk("init: policy->max is %d, policy->min is %d\n",
 		policy->max, policy->min);
-
-	return 0;
-free:
-	pcc_clear_mapping();
-	free_percpu(pcc_cpu_info);
-pcch_null:
+out:
 	return result;
 }
 

arch/x86/kernel/cpu/cpufreq/powernow-k8.c

@@ -1023,13 +1023,12 @@ static int get_transition_latency(struct powernow_k8_data *data)
 	}
 	if (max_latency == 0) {
 		/*
-		 * Fam 11h always returns 0 as transition latency.
-		 * This is intended and means "very fast". While cpufreq core
-		 * and governors currently can handle that gracefully, better
-		 * set it to 1 to avoid problems in the future.
-		 * For all others it's a BIOS bug.
+		 * Fam 11h and later may return 0 as transition latency. This
+		 * is intended and means "very fast". While cpufreq core and
+		 * governors currently can handle that gracefully, better set it
+		 * to 1 to avoid problems in the future.
 		 */
-		if (boot_cpu_data.x86 != 0x11)
+		if (boot_cpu_data.x86 < 0x11)
 			printk(KERN_ERR FW_WARN PFX "Invalid zero transition "
 				"latency\n");
 		max_latency = 1;

arch/x86/kernel/entry_64.S

@@ -571,8 +571,8 @@ auditsys:
 	 * masked off.
 	 */
 sysret_audit:
-	movq %rax,%rsi		/* second arg, syscall return value */
-	cmpq $0,%rax		/* is it < 0? */
+	movq RAX-ARGOFFSET(%rsp),%rsi	/* second arg, syscall return value */
+	cmpq $0,%rsi		/* is it < 0? */
 	setl %al		/* 1 if so, 0 if not */
 	movzbl %al,%edi		/* zero-extend that into %edi */
 	inc %edi /* first arg, 0->1(AUDITSC_SUCCESS), 1->2(AUDITSC_FAILURE) */

arch/x86/kernel/hpet.c

@@ -964,7 +964,7 @@ fs_initcall(hpet_late_init);
 
 void hpet_disable(void)
 {
-	if (is_hpet_capable()) {
+	if (is_hpet_capable() && hpet_virt_address) {
 		unsigned int cfg = hpet_readl(HPET_CFG);
 
 		if (hpet_legacy_int_enabled) {

arch/x86/kernel/i8259.c

@@ -276,16 +276,6 @@ static struct sys_device device_i8259A = {
 	.cls	= &i8259_sysdev_class,
 };
 
-static int __init i8259A_init_sysfs(void)
-{
-	int error = sysdev_class_register(&i8259_sysdev_class);
-	if (!error)
-		error = sysdev_register(&device_i8259A);
-	return error;
-}
-
-device_initcall(i8259A_init_sysfs);
-
 static void mask_8259A(void)
 {
 	unsigned long flags;
@@ -407,3 +397,18 @@ struct legacy_pic default_legacy_pic = {
 };
 
 struct legacy_pic *legacy_pic = &default_legacy_pic;
+
+static int __init i8259A_init_sysfs(void)
+{
+	int error;
+
+	if (legacy_pic != &default_legacy_pic)
+		return 0;
+
+	error = sysdev_class_register(&i8259_sysdev_class);
+	if (!error)
+		error = sysdev_register(&device_i8259A);
+	return error;
+}
+
+device_initcall(i8259A_init_sysfs);

arch/x86/kernel/kgdb.c

@@ -572,7 +572,6 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd)
 	return NOTIFY_STOP;
 }
 
-#ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
 int kgdb_ll_trap(int cmd, const char *str,
 		 struct pt_regs *regs, long err, int trap, int sig)
 {
@@ -590,7 +589,6 @@ int kgdb_ll_trap(int cmd, const char *str,
 
 	return __kgdb_notify(&args, cmd);
 }
-#endif /* CONFIG_KGDB_LOW_LEVEL_TRAP */
 
 static int
 kgdb_notify(struct notifier_block *self, unsigned long cmd, void *ptr)
@@ -625,6 +623,12 @@ int kgdb_arch_init(void)
 	return register_die_notifier(&kgdb_notifier);
 }
 
+static void kgdb_hw_overflow_handler(struct perf_event *event, int nmi,
+		struct perf_sample_data *data, struct pt_regs *regs)
+{
+	kgdb_ll_trap(DIE_DEBUG, "debug", regs, 0, 0, SIGTRAP);
+}
+
 void kgdb_arch_late(void)
 {
 	int i, cpu;
@@ -655,6 +659,7 @@ void kgdb_arch_late(void)
 		for_each_online_cpu(cpu) {
 			pevent = per_cpu_ptr(breakinfo[i].pev, cpu);
 			pevent[0]->hw.sample_period = 1;
+			pevent[0]->overflow_handler = kgdb_hw_overflow_handler;
 			if (pevent[0]->destroy != NULL) {
 				pevent[0]->destroy = NULL;
 				release_bp_slot(*pevent);

arch/x86/kvm/paging_tmpl.h

@@ -342,6 +342,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 			/* advance table_gfn when emulating 1gb pages with 4k */
 			if (delta == 0)
 				table_gfn += PT_INDEX(addr, level);
+			access &= gw->pte_access;
 		} else {
 			direct = 0;
 			table_gfn = gw->table_gfn[level - 2];

arch/x86/kvm/x86.c

@@ -1562,7 +1562,7 @@ static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs,
 
 	r = -ENOMEM;
 	size = sizeof(struct kvm_msr_entry) * msrs.nmsrs;
-	entries = vmalloc(size);
+	entries = kmalloc(size, GFP_KERNEL);
 	if (!entries)
 		goto out;
 
@@ -1581,7 +1581,7 @@ static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs,
 	r = n;
 
 out_free:
-	vfree(entries);
+	kfree(entries);
 out:
 	return r;
 }

drivers/acpi/acpica/evxfevnt.c

@@ -70,6 +70,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 acpi_status acpi_enable(void)
 {
 	acpi_status status;
+	int retry;
 
 	ACPI_FUNCTION_TRACE(acpi_enable);
 
@@ -98,16 +99,18 @@ acpi_status acpi_enable(void)
 
 	/* Sanity check that transition succeeded */
 
-	if (acpi_hw_get_mode() != ACPI_SYS_MODE_ACPI) {
-		ACPI_ERROR((AE_INFO,
-			    "Hardware did not enter ACPI mode"));
-		return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
+	for (retry = 0; retry < 30000; ++retry) {
+		if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
+			if (retry != 0)
+				ACPI_WARNING((AE_INFO,
+				"Platform took > %d00 usec to enter ACPI mode", retry));
+			return_ACPI_STATUS(AE_OK);
+		}
+		acpi_os_stall(100);	/* 100 usec */
 	}
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INIT,
-			  "Transition to ACPI mode successful\n"));
-
-	return_ACPI_STATUS(AE_OK);
+	ACPI_ERROR((AE_INFO, "Hardware did not enter ACPI mode"));
+	return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
 }
 
 ACPI_EXPORT_SYMBOL(acpi_enable)

drivers/acpi/battery.c

@@ -868,9 +868,15 @@ static void acpi_battery_remove_fs(struct acpi_device *device)
 static void acpi_battery_notify(struct acpi_device *device, u32 event)
 {
 	struct acpi_battery *battery = acpi_driver_data(device);
+#ifdef CONFIG_ACPI_SYSFS_POWER
+	struct device *old;
+#endif
 
 	if (!battery)
 		return;
+#ifdef CONFIG_ACPI_SYSFS_POWER
+	old = battery->bat.dev;
+#endif
 	acpi_battery_update(battery);
 	acpi_bus_generate_proc_event(device, event,
 				     acpi_battery_present(battery));
@@ -879,7 +885,7 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
 					acpi_battery_present(battery));
 #ifdef CONFIG_ACPI_SYSFS_POWER
 	/* acpi_battery_update could remove power_supply object */
-	if (battery->bat.dev)
+	if (old && battery->bat.dev)
 		power_supply_changed(&battery->bat);
 #endif
 }

drivers/acpi/blacklist.c

@@ -214,7 +214,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	.ident = "Sony VGN-SR290J",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "Sony VGN-SR290J"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
 		},
 	},
 	{

drivers/acpi/processor_core.c

@@ -223,7 +223,7 @@ static bool processor_physically_present(acpi_handle handle)
 	type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0;
 	cpuid = acpi_get_cpuid(handle, type, acpi_id);
 
-	if (cpuid == -1)
+	if ((cpuid == -1) && (num_possible_cpus() > 1))
 		return false;
 
 	return true;

drivers/acpi/processor_idle.c

@@ -76,14 +76,19 @@ static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
 module_param(max_cstate, uint, 0000);
 static unsigned int nocst __read_mostly;
 module_param(nocst, uint, 0000);
+static int bm_check_disable __read_mostly;
+module_param(bm_check_disable, uint, 0000);
 
 static unsigned int latency_factor __read_mostly = 2;
 module_param(latency_factor, uint, 0644);
 
+#ifdef CONFIG_ACPI_PROCFS
 static u64 us_to_pm_timer_ticks(s64 t)
 {
 	return div64_u64(t * PM_TIMER_FREQUENCY, 1000000);
 }
+#endif
+
 /*
  * IBM ThinkPad R40e crashes mysteriously when going into C2 or C3.
  * For now disable this. Probably a bug somewhere else.
@@ -763,6 +768,9 @@ static int acpi_idle_bm_check(void)
 {
 	u32 bm_status = 0;
 
+	if (bm_check_disable)
+		return 0;
+
 	acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status);
 	if (bm_status)
 		acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, 1);
@@ -947,7 +955,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 	if (acpi_idle_suspend)
 		return(acpi_idle_enter_c1(dev, state));
 
-	if (acpi_idle_bm_check()) {
+	if (!cx->bm_sts_skip && acpi_idle_bm_check()) {
 		if (dev->safe_state) {
 			dev->last_state = dev->safe_state;
 			return dev->safe_state->enter(dev, dev->safe_state);

drivers/acpi/sleep.c

@@ -81,6 +81,20 @@ static int acpi_sleep_prepare(u32 acpi_state)
 #ifdef CONFIG_ACPI_SLEEP
 static u32 acpi_target_sleep_state = ACPI_STATE_S0;
 
+/*
+ * The ACPI specification wants us to save NVS memory regions during hibernation
+ * and to restore them during the subsequent resume.  Windows does that also for
+ * suspend to RAM.  However, it is known that this mechanism does not work on
+ * all machines, so we allow the user to disable it with the help of the
+ * 'acpi_sleep=nonvs' kernel command line option.
+ */
+static bool nvs_nosave;
+
+void __init acpi_nvs_nosave(void)
+{
+	nvs_nosave = true;
+}
+
 /*
  * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
  * user to request that behavior by using the 'acpi_old_suspend_ordering'
@@ -197,8 +211,7 @@ static int acpi_suspend_begin(suspend_state_t pm_state)
 	u32 acpi_state = acpi_suspend_states[pm_state];
 	int error = 0;
 
-	error = suspend_nvs_alloc();
-
+	error = nvs_nosave ? 0 : suspend_nvs_alloc();
 	if (error)
 		return error;
 
@@ -388,20 +401,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
 #endif /* CONFIG_SUSPEND */
 
 #ifdef CONFIG_HIBERNATION
-/*
- * The ACPI specification wants us to save NVS memory regions during hibernation
- * and to restore them during the subsequent resume.  However, it is not certain
- * if this mechanism is going to work on all machines, so we allow the user to
- * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line
- * option.
- */
-static bool s4_no_nvs;
-
-void __init acpi_s4_no_nvs(void)
-{
-	s4_no_nvs = true;
-}
-
 static unsigned long s4_hardware_signature;
 static struct acpi_table_facs *facs;
 static bool nosigcheck;
@@ -415,7 +414,7 @@ static int acpi_hibernation_begin(void)
 {
 	int error;
 
-	error = s4_no_nvs ? 0 : suspend_nvs_alloc();
+	error = nvs_nosave ? 0 : suspend_nvs_alloc();
 	if (!error) {
 		acpi_target_sleep_state = ACPI_STATE_S4;
 		acpi_sleep_tts_switch(acpi_target_sleep_state);
@@ -510,7 +509,7 @@ static int acpi_hibernation_begin_old(void)
 	error = acpi_sleep_prepare(ACPI_STATE_S4);
 
 	if (!error) {
-		if (!s4_no_nvs)
+		if (!nvs_nosave)
 			error = suspend_nvs_alloc();
 		if (!error)
 			acpi_target_sleep_state = ACPI_STATE_S4;

drivers/base/core.c

@@ -673,7 +673,7 @@ static struct kobject *get_device_parent(struct device *dev,
 		 */
 		if (parent == NULL)
 			parent_kobj = virtual_device_parent(dev);
-		else if (parent->class)
+		else if (parent->class && !dev->class->ns_type)
 			return &parent->kobj;
 		else
 			parent_kobj = &parent->kobj;

drivers/char/agp/intel-gtt.c

@@ -1216,17 +1216,20 @@ static int intel_i915_get_gtt_size(void)
 
 		/* G33's GTT size defined in gmch_ctrl */
 		pci_read_config_word(agp_bridge->dev, I830_GMCH_CTRL, &gmch_ctrl);
-		switch (gmch_ctrl & G33_PGETBL_SIZE_MASK) {
-		case G33_PGETBL_SIZE_1M:
+		switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
+		case I830_GMCH_GMS_STOLEN_512:
+			size = 512;
+			break;
+		case I830_GMCH_GMS_STOLEN_1024:
 			size = 1024;
 			break;
-		case G33_PGETBL_SIZE_2M:
-			size = 2048;
+		case I830_GMCH_GMS_STOLEN_8192:
+			size = 8*1024;
 			break;
 		default:
 			dev_info(&agp_bridge->dev->dev,
 				 "unknown page table size 0x%x, assuming 512KB\n",
-				(gmch_ctrl & G33_PGETBL_SIZE_MASK));
+				(gmch_ctrl & I830_GMCH_GMS_MASK));
 			size = 512;
 		}
 	} else {

drivers/char/sysrq.c

@@ -493,7 +493,7 @@ static void __sysrq_put_key_op(int key, struct sysrq_key_op *op_p)
                 sysrq_key_table[i] = op_p;
 }
 
-static void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
+void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
 {
 	struct sysrq_key_op *op_p;
 	int orig_log_level;

drivers/char/tpm/tpm_tis.c

@@ -623,7 +623,14 @@ static int tpm_tis_pnp_suspend(struct pnp_dev *dev, pm_message_t msg)
 
 static int tpm_tis_pnp_resume(struct pnp_dev *dev)
 {
-	return tpm_pm_resume(&dev->dev);
+	struct tpm_chip *chip = pnp_get_drvdata(dev);
+	int ret;
+
+	ret = tpm_pm_resume(&dev->dev);
+	if (!ret)
+		tpm_continue_selftest(chip);
+
+	return ret;
 }
 
 static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = {

drivers/cpufreq/cpufreq.c

@@ -1080,6 +1080,7 @@ err_out_unregister:
 
 err_unlock_policy:
 	unlock_policy_rwsem_write(cpu);
+	free_cpumask_var(policy->related_cpus);
 err_free_cpumask:
 	free_cpumask_var(policy->cpus);
 err_free_policy:
@@ -1765,17 +1766,8 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data,
 			dprintk("governor switch\n");
 
 			/* end old governor */
-			if (data->governor) {
-				/*
-				 * Need to release the rwsem around governor
-				 * stop due to lock dependency between
-				 * cancel_delayed_work_sync and the read lock
-				 * taken in the delayed work handler.
-				 */
-				unlock_policy_rwsem_write(data->cpu);
+			if (data->governor)
 				__cpufreq_governor(data, CPUFREQ_GOV_STOP);
-				lock_policy_rwsem_write(data->cpu);
-			}
 
 			/* start new governor */
 			data->governor = policy->governor;

drivers/crypto/talitos.c

@@ -1183,10 +1183,14 @@ static size_t sg_copy_end_to_buffer(struct scatterlist *sgl, unsigned int nents,
 				/* Copy part of this segment */
 				ignore = skip - offset;
 				len = miter.length - ignore;
+				if (boffset + len > buflen)
+					len = buflen - boffset;
 				memcpy(buf + boffset, miter.addr + ignore, len);
 			} else {
-				/* Copy all of this segment */
+				/* Copy all of this segment (up to buflen) */
 				len = miter.length;
+				if (boffset + len > buflen)
+					len = buflen - boffset;
 				memcpy(buf + boffset, miter.addr, len);
 			}
 			boffset += len;

drivers/edac/i7core_edac.c

@@ -1300,7 +1300,7 @@ int i7core_get_onedevice(struct pci_dev **prev, int devno,
 		if (devno == 0)
 			return -ENODEV;
 
-		i7core_printk(KERN_ERR,
+		i7core_printk(KERN_INFO,
 			"Device not found: dev %02x.%d PCI ID %04x:%04x\n",
 			dev_descr->dev, dev_descr->func,
 			PCI_VENDOR_ID_INTEL, dev_descr->dev_id);

drivers/edac/mpc85xx_edac.c

@@ -336,6 +336,7 @@ static struct of_device_id mpc85xx_pci_err_of_match[] = {
 	},
 	{},
 };
+MODULE_DEVICE_TABLE(of, mpc85xx_pci_err_of_match);
 
 static struct of_platform_driver mpc85xx_pci_err_driver = {
 	.probe = mpc85xx_pci_err_probe,
@@ -650,6 +651,7 @@ static struct of_device_id mpc85xx_l2_err_of_match[] = {
 	{ .compatible = "fsl,p2020-l2-cache-controller", },
 	{},
 };
+MODULE_DEVICE_TABLE(of, mpc85xx_l2_err_of_match);
 
 static struct of_platform_driver mpc85xx_l2_err_driver = {
 	.probe = mpc85xx_l2_err_probe,
@@ -1126,6 +1128,7 @@ static struct of_device_id mpc85xx_mc_err_of_match[] = {
 	{ .compatible = "fsl,p2020-memory-controller", },
 	{},
 };
+MODULE_DEVICE_TABLE(of, mpc85xx_mc_err_of_match);
 
 static struct of_platform_driver mpc85xx_mc_err_driver = {
 	.probe = mpc85xx_mc_err_probe,

drivers/gpio/gpiolib.c

@@ -893,10 +893,12 @@ EXPORT_SYMBOL_GPL(gpio_sysfs_set_active_low);
 void gpio_unexport(unsigned gpio)
 {
 	struct gpio_desc	*desc;
-	int			status = -EINVAL;
+	int			status = 0;
 
-	if (!gpio_is_valid(gpio))
+	if (!gpio_is_valid(gpio)) {
+		status = -EINVAL;
 		goto done;
+	}
 
 	mutex_lock(&sysfs_lock);
 
@@ -911,7 +913,6 @@ void gpio_unexport(unsigned gpio)
 			clear_bit(FLAG_EXPORT, &desc->flags);
 			put_device(dev);
 			device_unregister(dev);
-			status = 0;
 		} else
 			status = -ENODEV;
 	}

drivers/gpu/drm/drm_edid.c

@@ -864,8 +864,8 @@ drm_mode_std(struct drm_connector *connector, struct edid *edid,
 		mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
 				    false);
 		mode->hdisplay = 1366;
-		mode->vsync_start = mode->vsync_start - 1;
-		mode->vsync_end = mode->vsync_end - 1;
+		mode->hsync_start = mode->hsync_start - 1;
+		mode->hsync_end = mode->hsync_end - 1;
 		return mode;
 	}
 

drivers/gpu/drm/i915/i915_debugfs.c

@@ -605,6 +605,9 @@ static int i915_fbc_status(struct seq_file *m, void *unused)
 		case FBC_NOT_TILED:
 			seq_printf(m, "scanout buffer not tiled");
 			break;
+		case FBC_MULTIPLE_PIPES:
+			seq_printf(m, "multiple pipes are enabled");
+			break;
 		default:
 			seq_printf(m, "unknown reason");
 		}

drivers/gpu/drm/i915/i915_dma.c

@@ -1300,7 +1300,7 @@ static void i915_cleanup_compression(struct drm_device *dev)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
 	drm_mm_put_block(dev_priv->compressed_fb);
-	if (!IS_GM45(dev))
+	if (dev_priv->compressed_llb)
 		drm_mm_put_block(dev_priv->compressed_llb);
 }
 

drivers/gpu/drm/i915/i915_drv.h

@@ -215,6 +215,7 @@ enum no_fbc_reason {
 	FBC_MODE_TOO_LARGE, /* mode too large for compression */
 	FBC_BAD_PLANE, /* fbc not supported on plane */
 	FBC_NOT_TILED, /* buffer not tiled */
+	FBC_MULTIPLE_PIPES, /* more than one pipe active */
 };
 
 enum intel_pch {
@@ -222,6 +223,8 @@ enum intel_pch {
 	PCH_CPT,	/* Cougarpoint PCH */
 };
 
+#define QUIRK_PIPEA_FORCE (1<<0)
+
 struct intel_fbdev;
 
 typedef struct drm_i915_private {
@@ -337,6 +340,8 @@ typedef struct drm_i915_private {
 	/* PCH chipset type */
 	enum intel_pch pch_type;
 
+	unsigned long quirks;
+
 	/* Register state */
 	bool modeset_on_lid;
 	u8 saveLBB;

drivers/gpu/drm/i915/i915_gem.c

@@ -3647,6 +3647,7 @@ i915_gem_wait_for_pending_flip(struct drm_device *dev,
 	return ret;
 }
 
+
 int
 i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 		       struct drm_file *file_priv,
@@ -3794,7 +3795,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 				unsigned long long total_size = 0;
 				int num_fences = 0;
 				for (i = 0; i < args->buffer_count; i++) {
-					obj_priv = object_list[i]->driver_private;
+					obj_priv = to_intel_bo(object_list[i]);
 
 					total_size += object_list[i]->size;
 					num_fences +=

drivers/gpu/drm/i915/i915_reg.h

@@ -2869,6 +2869,7 @@
 
 #define PCH_PP_STATUS		0xc7200
 #define PCH_PP_CONTROL		0xc7204
+#define  PANEL_UNLOCK_REGS	(0xabcd << 16)
 #define  EDP_FORCE_VDD		(1 << 3)
 #define  EDP_BLC_ENABLE		(1 << 2)
 #define  PANEL_POWER_RESET	(1 << 1)

drivers/gpu/drm/i915/intel_display.c

@@ -862,8 +862,8 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
 	intel_clock_t clock;
 	int max_n;
 	bool found;
-	/* approximately equals target * 0.00488 */
-	int err_most = (target >> 8) + (target >> 10);
+	/* approximately equals target * 0.00585 */
+	int err_most = (target >> 8) + (target >> 9);
 	found = false;
 
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
@@ -1180,8 +1180,12 @@ static void intel_update_fbc(struct drm_crtc *crtc,
 	struct drm_framebuffer *fb = crtc->fb;
 	struct intel_framebuffer *intel_fb;
 	struct drm_i915_gem_object *obj_priv;
+	struct drm_crtc *tmp_crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int plane = intel_crtc->plane;
+	int crtcs_enabled = 0;
+
+	DRM_DEBUG_KMS("\n");
 
 	if (!i915_powersave)
 		return;
@@ -1199,10 +1203,21 @@ static void intel_update_fbc(struct drm_crtc *crtc,
 	 * If FBC is already on, we just have to verify that we can
 	 * keep it that way...
 	 * Need to disable if:
+	 *   - more than one pipe is active
 	 *   - changing FBC params (stride, fence, mode)
 	 *   - new fb is too large to fit in compressed buffer
 	 *   - going to an unsupported config (interlace, pixel multiply, etc.)
 	 */
+	list_for_each_entry(tmp_crtc, &dev->mode_config.crtc_list, head) {
+		if (tmp_crtc->enabled)
+			crtcs_enabled++;
+	}
+	DRM_DEBUG_KMS("%d pipes active\n", crtcs_enabled);
+	if (crtcs_enabled > 1) {
+		DRM_DEBUG_KMS("more than one pipe active, disabling compression\n");
+		dev_priv->no_fbc_reason = FBC_MULTIPLE_PIPES;
+		goto out_disable;
+	}
 	if (intel_fb->obj->size > dev_priv->cfb_size) {
 		DRM_DEBUG_KMS("framebuffer too large, disabling "
 				"compression\n");
@@ -1255,7 +1270,7 @@ out_disable:
 	}
 }
 
-static int
+int
 intel_pin_and_fence_fb_obj(struct drm_device *dev, struct drm_gem_object *obj)
 {
 	struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
@@ -2255,6 +2270,11 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode)
 			intel_wait_for_vblank(dev);
 		}
 
+		/* Don't disable pipe A or pipe A PLLs if needed */
+		if (pipeconf_reg == PIPEACONF &&
+		    (dev_priv->quirks & QUIRK_PIPEA_FORCE))
+			goto skip_pipe_off;
+
 		/* Next, disable display pipes */
 		temp = I915_READ(pipeconf_reg);
 		if ((temp & PIPEACONF_ENABLE) != 0) {
@@ -2270,7 +2290,7 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode)
 			I915_WRITE(dpll_reg, temp & ~DPLL_VCO_ENABLE);
 			I915_READ(dpll_reg);
 		}
-
+	skip_pipe_off:
 		/* Wait for the clocks to turn off. */
 		udelay(150);
 		break;
@@ -2356,8 +2376,6 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc,
 		if (mode->clock * 3 > 27000 * 4)
 			return MODE_CLOCK_HIGH;
 	}
-
-	drm_mode_set_crtcinfo(adjusted_mode, 0);
 	return true;
 }
 
@@ -3736,6 +3754,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 			if (dev_priv->lvds_dither) {
 				if (HAS_PCH_SPLIT(dev)) {
 					pipeconf |= PIPE_ENABLE_DITHER;
+					pipeconf &= ~PIPE_DITHER_TYPE_MASK;
 					pipeconf |= PIPE_DITHER_TYPE_ST01;
 				} else
 					lvds |= LVDS_ENABLE_DITHER;
@@ -4412,7 +4431,8 @@ static void intel_increase_pllclock(struct drm_crtc *crtc, bool schedule)
 		DRM_DEBUG_DRIVER("upclocking LVDS\n");
 
 		/* Unlock panel regs */
-		I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | (0xabcd << 16));
+		I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) |
+			   PANEL_UNLOCK_REGS);
 
 		dpll &= ~DISPLAY_RATE_SELECT_FPA1;
 		I915_WRITE(dpll_reg, dpll);
@@ -4455,7 +4475,8 @@ static void intel_decrease_pllclock(struct drm_crtc *crtc)
 		DRM_DEBUG_DRIVER("downclocking LVDS\n");
 
 		/* Unlock panel regs */
-		I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | (0xabcd << 16));
+		I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) |
+			   PANEL_UNLOCK_REGS);
 
 		dpll |= DISPLAY_RATE_SELECT_FPA1;
 		I915_WRITE(dpll_reg, dpll);
@@ -4695,7 +4716,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 	struct drm_gem_object *obj;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_unpin_work *work;
-	unsigned long flags;
+	unsigned long flags, offset;
 	int pipesrc_reg = (intel_crtc->pipe == 0) ? PIPEASRC : PIPEBSRC;
 	int ret, pipesrc;
 	u32 flip_mask;
@@ -4762,19 +4783,23 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 		while (I915_READ(ISR) & flip_mask)
 			;
 
+	/* Offset into the new buffer for cases of shared fbs between CRTCs */
+	offset = obj_priv->gtt_offset;
+	offset += (crtc->y * fb->pitch) + (crtc->x * (fb->bits_per_pixel) / 8);
+
 	BEGIN_LP_RING(4);
 	if (IS_I965G(dev)) {
 		OUT_RING(MI_DISPLAY_FLIP |
 			 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
 		OUT_RING(fb->pitch);
-		OUT_RING(obj_priv->gtt_offset | obj_priv->tiling_mode);
+		OUT_RING(offset | obj_priv->tiling_mode);
 		pipesrc = I915_READ(pipesrc_reg); 
 		OUT_RING(pipesrc & 0x0fff0fff);
 	} else {
 		OUT_RING(MI_DISPLAY_FLIP_I915 |
 			 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
 		OUT_RING(fb->pitch);
-		OUT_RING(obj_priv->gtt_offset);
+		OUT_RING(offset);
 		OUT_RING(MI_NOOP);
 	}
 	ADVANCE_LP_RING();
@@ -5506,6 +5531,66 @@ static void intel_init_display(struct drm_device *dev)
 	}
 }
 
+/*
+ * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
+ * resume, or other times.  This quirk makes sure that's the case for
+ * affected systems.
+ */
+static void quirk_pipea_force (struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	dev_priv->quirks |= QUIRK_PIPEA_FORCE;
+	DRM_DEBUG_DRIVER("applying pipe a force quirk\n");
+}
+
+struct intel_quirk {
+	int device;
+	int subsystem_vendor;
+	int subsystem_device;
+	void (*hook)(struct drm_device *dev);
+};
+
+struct intel_quirk intel_quirks[] = {
+	/* HP Compaq 2730p needs pipe A force quirk (LP: #291555) */
+	{ 0x2a42, 0x103c, 0x30eb, quirk_pipea_force },
+	/* HP Mini needs pipe A force quirk (LP: #322104) */
+	{ 0x27ae,0x103c, 0x361a, quirk_pipea_force },
+
+	/* Thinkpad R31 needs pipe A force quirk */
+	{ 0x3577, 0x1014, 0x0505, quirk_pipea_force },
+	/* Toshiba Protege R-205, S-209 needs pipe A force quirk */
+	{ 0x2592, 0x1179, 0x0001, quirk_pipea_force },
+
+	/* ThinkPad X30 needs pipe A force quirk (LP: #304614) */
+	{ 0x3577,  0x1014, 0x0513, quirk_pipea_force },
+	/* ThinkPad X40 needs pipe A force quirk */
+
+	/* ThinkPad T60 needs pipe A force quirk (bug #16494) */
+	{ 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
+
+	/* 855 & before need to leave pipe A & dpll A up */
+	{ 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
+	{ 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
+};
+
+static void intel_init_quirks(struct drm_device *dev)
+{
+	struct pci_dev *d = dev->pdev;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
+		struct intel_quirk *q = &intel_quirks[i];
+
+		if (d->device == q->device &&
+		    (d->subsystem_vendor == q->subsystem_vendor ||
+		     q->subsystem_vendor == PCI_ANY_ID) &&
+		    (d->subsystem_device == q->subsystem_device ||
+		     q->subsystem_device == PCI_ANY_ID))
+			q->hook(dev);
+	}
+}
+
 void intel_modeset_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -5518,6 +5603,8 @@ void intel_modeset_init(struct drm_device *dev)
 
 	dev->mode_config.funcs = (void *)&intel_mode_funcs;
 
+	intel_init_quirks(dev);
+
 	intel_init_display(dev);
 
 	if (IS_I965G(dev)) {

drivers/gpu/drm/i915/intel_dp.c

@@ -717,6 +717,51 @@ intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 	}
 }
 
+static void ironlake_edp_panel_on (struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	unsigned long timeout = jiffies + msecs_to_jiffies(5000);
+	u32 pp, pp_status;
+
+	pp_status = I915_READ(PCH_PP_STATUS);
+	if (pp_status & PP_ON)
+		return;
+
+	pp = I915_READ(PCH_PP_CONTROL);
+	pp |= PANEL_UNLOCK_REGS | POWER_TARGET_ON;
+	I915_WRITE(PCH_PP_CONTROL, pp);
+	do {
+		pp_status = I915_READ(PCH_PP_STATUS);
+	} while (((pp_status & PP_ON) == 0) && !time_after(jiffies, timeout));
+
+	if (time_after(jiffies, timeout))
+		DRM_DEBUG_KMS("panel on wait timed out: 0x%08x\n", pp_status);
+
+	pp &= ~(PANEL_UNLOCK_REGS | EDP_FORCE_VDD);
+	I915_WRITE(PCH_PP_CONTROL, pp);
+}
+
+static void ironlake_edp_panel_off (struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	unsigned long timeout = jiffies + msecs_to_jiffies(5000);
+	u32 pp, pp_status;
+
+	pp = I915_READ(PCH_PP_CONTROL);
+	pp &= ~POWER_TARGET_ON;
+	I915_WRITE(PCH_PP_CONTROL, pp);
+	do {
+		pp_status = I915_READ(PCH_PP_STATUS);
+	} while ((pp_status & PP_ON) && !time_after(jiffies, timeout));
+
+	if (time_after(jiffies, timeout))
+		DRM_DEBUG_KMS("panel off wait timed out\n");
+
+	/* Make sure VDD is enabled so DP AUX will work */
+	pp |= EDP_FORCE_VDD;
+	I915_WRITE(PCH_PP_CONTROL, pp);
+}
+
 static void ironlake_edp_backlight_on (struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -751,14 +796,18 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode)
 	if (mode != DRM_MODE_DPMS_ON) {
 		if (dp_reg & DP_PORT_EN) {
 			intel_dp_link_down(intel_encoder, dp_priv->DP);
-			if (IS_eDP(intel_encoder))
+			if (IS_eDP(intel_encoder)) {
 				ironlake_edp_backlight_off(dev);
+				ironlake_edp_panel_off(dev);
+			}
 		}
 	} else {
 		if (!(dp_reg & DP_PORT_EN)) {
 			intel_dp_link_train(intel_encoder, dp_priv->DP, dp_priv->link_configuration);
-			if (IS_eDP(intel_encoder))
+			if (IS_eDP(intel_encoder)) {
+				ironlake_edp_panel_on(dev);
 				ironlake_edp_backlight_on(dev);
+			}
 		}
 	}
 	dp_priv->dpms_mode = mode;

drivers/gpu/drm/i915/intel_drv.h

@@ -215,6 +215,9 @@ extern void intel_init_clock_gating(struct drm_device *dev);
 extern void ironlake_enable_drps(struct drm_device *dev);
 extern void ironlake_disable_drps(struct drm_device *dev);
 
+extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
+				      struct drm_gem_object *obj);
+
 extern int intel_framebuffer_init(struct drm_device *dev,
 				  struct intel_framebuffer *ifb,
 				  struct drm_mode_fb_cmd *mode_cmd,

drivers/gpu/drm/i915/intel_fb.c

@@ -98,7 +98,7 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
 
 	mutex_lock(&dev->struct_mutex);
 
-	ret = i915_gem_object_pin(fbo, 64*1024);
+	ret = intel_pin_and_fence_fb_obj(dev, fbo);
 	if (ret) {
 		DRM_ERROR("failed to pin fb: %d\n", ret);
 		goto out_unref;
@@ -236,7 +236,7 @@ int intel_fbdev_destroy(struct drm_device *dev,
 
 	drm_framebuffer_cleanup(&ifb->base);
 	if (ifb->obj)
-		drm_gem_object_unreference_unlocked(ifb->obj);
+		drm_gem_object_unreference(ifb->obj);
 
 	return 0;
 }

drivers/gpu/drm/i915/intel_lvds.c

@@ -599,6 +599,26 @@ static int intel_lvds_get_modes(struct drm_connector *connector)
 	return 0;
 }
 
+static int intel_no_modeset_on_lid_dmi_callback(const struct dmi_system_id *id)
+{
+	DRM_DEBUG_KMS("Skipping forced modeset for %s\n", id->ident);
+	return 1;
+}
+
+/* The GPU hangs up on these systems if modeset is performed on LID open */
+static const struct dmi_system_id intel_no_modeset_on_lid[] = {
+	{
+		.callback = intel_no_modeset_on_lid_dmi_callback,
+		.ident = "Toshiba Tecra A11",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A11"),
+		},
+	},
+
+	{ }	/* terminating entry */
+};
+
 /*
  * Lid events. Note the use of 'modeset_on_lid':
  *  - we set it on lid close, and reset it on open
@@ -622,6 +642,9 @@ static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
 	 */
 	if (connector)
 		connector->status = connector->funcs->detect(connector);
+	/* Don't force modeset on machines where it causes a GPU lockup */
+	if (dmi_check_system(intel_no_modeset_on_lid))
+		return NOTIFY_OK;
 	if (!acpi_lid_open()) {
 		dev_priv->modeset_on_lid = 1;
 		return NOTIFY_OK;

drivers/gpu/drm/radeon/evergreen_cs.c

@@ -333,7 +333,6 @@ static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
 	header = radeon_get_ib_value(p, h_idx);
 	crtc_id = radeon_get_ib_value(p, h_idx + 2 + 7 + 1);
 	reg = CP_PACKET0_GET_REG(header);
-	mutex_lock(&p->rdev->ddev->mode_config.mutex);
 	obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
 	if (!obj) {
 		DRM_ERROR("cannot find crtc %d\n", crtc_id);
@@ -368,7 +367,6 @@ static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
 		}
 	}
 out:
-	mutex_unlock(&p->rdev->ddev->mode_config.mutex);
 	return r;
 }
 

drivers/gpu/drm/radeon/r100.c

@@ -1230,7 +1230,6 @@ int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
 	header = radeon_get_ib_value(p, h_idx);
 	crtc_id = radeon_get_ib_value(p, h_idx + 5);
 	reg = CP_PACKET0_GET_REG(header);
-	mutex_lock(&p->rdev->ddev->mode_config.mutex);
 	obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
 	if (!obj) {
 		DRM_ERROR("cannot find crtc %d\n", crtc_id);
@@ -1264,7 +1263,6 @@ int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
 		ib[h_idx + 3] |= RADEON_ENG_DISPLAY_SELECT_CRTC1;
 	}
 out:
-	mutex_unlock(&p->rdev->ddev->mode_config.mutex);
 	return r;
 }
 

drivers/gpu/drm/radeon/r600_cs.c

@@ -585,7 +585,7 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
 	header = radeon_get_ib_value(p, h_idx);
 	crtc_id = radeon_get_ib_value(p, h_idx + 2 + 7 + 1);
 	reg = CP_PACKET0_GET_REG(header);
-	mutex_lock(&p->rdev->ddev->mode_config.mutex);
+
 	obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
 	if (!obj) {
 		DRM_ERROR("cannot find crtc %d\n", crtc_id);
@@ -620,7 +620,6 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
 		ib[h_idx + 4] = AVIVO_D2MODE_VLINE_STATUS >> 2;
 	}
 out:
-	mutex_unlock(&p->rdev->ddev->mode_config.mutex);
 	return r;
 }
 

drivers/gpu/drm/radeon/radeon_combios.c

@@ -3050,6 +3050,14 @@ void radeon_combios_asic_init(struct drm_device *dev)
 	    rdev->pdev->subsystem_device == 0x308b)
 		return;
 
+	/* quirk for rs4xx HP dv5000 laptop to make it resume
+	 * - it hangs on resume inside the dynclk 1 table.
+	 */
+	if (rdev->family == CHIP_RS480 &&
+	    rdev->pdev->subsystem_vendor == 0x103c &&
+	    rdev->pdev->subsystem_device == 0x30a4)
+		return;
+
 	/* DYN CLK 1 */
 	table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE);
 	if (table)

drivers/gpu/drm/radeon/radeon_kms.c

@@ -128,7 +128,8 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 		for (i = 0, found = 0; i < rdev->num_crtc; i++) {
 			crtc = (struct drm_crtc *)minfo->crtcs[i];
 			if (crtc && crtc->base.id == value) {
-				value = i;
+				struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+				value = radeon_crtc->crtc_id;
 				found = 1;
 				break;
 			}

drivers/gpu/drm/radeon/radeon_legacy_encoders.c

@@ -108,6 +108,7 @@ static void radeon_legacy_lvds_dpms(struct drm_encoder *encoder, int mode)
 		udelay(panel_pwr_delay * 1000);
 		WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
 		WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
+		udelay(panel_pwr_delay * 1000);
 		break;
 	}
 

drivers/gpu/drm/radeon/radeon_pm.c

@@ -333,6 +333,7 @@ static ssize_t radeon_get_pm_profile(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "%s\n",
 			(cp == PM_PROFILE_AUTO) ? "auto" :
 			(cp == PM_PROFILE_LOW) ? "low" :
+			(cp == PM_PROFILE_MID) ? "mid" :
 			(cp == PM_PROFILE_HIGH) ? "high" : "default");
 }