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-rw-r--r--arch/arm/mach-pxa/include/mach/pxafb.h1
-rw-r--r--arch/arm/mach-pxa/reset.c7
-rw-r--r--arch/arm/mach-pxa/spitz.c4
-rw-r--r--arch/ia64/include/asm/intrinsics.h2
-rw-r--r--arch/ia64/include/asm/paravirt_privop.h13
-rw-r--r--arch/ia64/kernel/entry.S1
-rw-r--r--arch/ia64/kernel/head.S2
-rw-r--r--arch/ia64/kernel/mca.c2
-rw-r--r--arch/ia64/kernel/paravirt.c2
-rw-r--r--arch/ia64/kernel/pci-dma.c1
-rw-r--r--arch/ia64/xen/hypercall.S2
-rw-r--r--arch/mips/include/asm/mach-rc32434/gpio.h2
-rw-r--r--arch/mips/include/asm/mach-rc32434/rb.h14
-rw-r--r--arch/mips/include/asm/time.h2
-rw-r--r--arch/mips/kernel/csrc-r4k.c2
-rw-r--r--arch/mips/mm/sc-ip22.c2
-rw-r--r--arch/mips/mti-malta/malta-amon.c6
-rw-r--r--arch/mips/rb532/devices.c2
-rw-r--r--arch/mips/rb532/gpio.c193
-rw-r--r--arch/parisc/kernel/ptrace.c10
-rw-r--r--arch/sparc/include/asm/unistd_32.h3
-rw-r--r--arch/sparc/include/asm/unistd_64.h3
-rw-r--r--arch/sparc/kernel/systbls.S2
-rw-r--r--arch/sparc64/kernel/sys32.S13
-rw-r--r--arch/sparc64/kernel/systbls.S4
-rw-r--r--arch/x86/Kconfig9
-rw-r--r--arch/x86/Kconfig.debug4
-rw-r--r--arch/x86/include/asm/ftrace.h35
-rw-r--r--arch/x86/include/asm/iomap.h30
-rw-r--r--arch/x86/include/asm/mmzone_32.h4
-rw-r--r--arch/x86/include/asm/thread_info.h31
-rw-r--r--arch/x86/include/asm/uaccess_64.h2
-rw-r--r--arch/x86/include/asm/unistd_64.h4
-rw-r--r--arch/x86/kernel/Makefile6
-rw-r--r--arch/x86/kernel/amd_iommu.c2
-rw-r--r--arch/x86/kernel/amd_iommu_init.c6
-rw-r--r--arch/x86/kernel/ds.c25
-rw-r--r--arch/x86/kernel/entry_32.S42
-rw-r--r--arch/x86/kernel/entry_64.S5
-rw-r--r--arch/x86/kernel/es7000_32.c9
-rw-r--r--arch/x86/kernel/ftrace.c311
-rw-r--r--arch/x86/kernel/io_apic.c14
-rw-r--r--arch/x86/kernel/reboot.c9
-rw-r--r--arch/x86/kernel/setup.c2
-rw-r--r--arch/x86/kernel/tsc_sync.c4
-rw-r--r--arch/x86/kernel/vsyscall_64.c3
-rw-r--r--arch/x86/mach-voyager/voyager_smp.c16
-rw-r--r--arch/x86/mm/Makefile3
-rw-r--r--arch/x86/mm/fault.c2
-rw-r--r--arch/x86/mm/numa_32.c35
-rw-r--r--arch/x86/power/hibernate_32.c4
-rw-r--r--arch/x86/vdso/vclock_gettime.c3
52 files changed, 718 insertions, 197 deletions
diff --git a/arch/arm/mach-pxa/include/mach/pxafb.h b/arch/arm/mach-pxa/include/mach/pxafb.h
index 8e591118371e..cbda4d35c421 100644
--- a/arch/arm/mach-pxa/include/mach/pxafb.h
+++ b/arch/arm/mach-pxa/include/mach/pxafb.h
@@ -33,6 +33,7 @@
33#define LCD_CONN_TYPE(_x) ((_x) & 0x0f) 33#define LCD_CONN_TYPE(_x) ((_x) & 0x0f)
34#define LCD_CONN_WIDTH(_x) (((_x) >> 4) & 0x1f) 34#define LCD_CONN_WIDTH(_x) (((_x) >> 4) & 0x1f)
35 35
36#define LCD_TYPE_MASK 0xf
36#define LCD_TYPE_UNKNOWN 0 37#define LCD_TYPE_UNKNOWN 0
37#define LCD_TYPE_MONO_STN 1 38#define LCD_TYPE_MONO_STN 1
38#define LCD_TYPE_MONO_DSTN 2 39#define LCD_TYPE_MONO_DSTN 2
diff --git a/arch/arm/mach-pxa/reset.c b/arch/arm/mach-pxa/reset.c
index 1b2af575c40f..00b2dc2a1074 100644
--- a/arch/arm/mach-pxa/reset.c
+++ b/arch/arm/mach-pxa/reset.c
@@ -90,12 +90,13 @@ void arch_reset(char mode)
90 /* Jump into ROM at address 0 */ 90 /* Jump into ROM at address 0 */
91 cpu_reset(0); 91 cpu_reset(0);
92 break; 92 break;
93 case 'h':
94 do_hw_reset();
95 break;
96 case 'g': 93 case 'g':
97 do_gpio_reset(); 94 do_gpio_reset();
98 break; 95 break;
96 case 'h':
97 default:
98 do_hw_reset();
99 break;
99 } 100 }
100} 101}
101 102
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index f0a5bbae0b45..3be76ee2bdbf 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -67,6 +67,7 @@
67static unsigned long spitz_pin_config[] __initdata = { 67static unsigned long spitz_pin_config[] __initdata = {
68 /* Chip Selects */ 68 /* Chip Selects */
69 GPIO78_nCS_2, /* SCOOP #2 */ 69 GPIO78_nCS_2, /* SCOOP #2 */
70 GPIO79_nCS_3, /* NAND */
70 GPIO80_nCS_4, /* SCOOP #1 */ 71 GPIO80_nCS_4, /* SCOOP #1 */
71 72
72 /* LCD - 16bpp Active TFT */ 73 /* LCD - 16bpp Active TFT */
@@ -97,10 +98,10 @@ static unsigned long spitz_pin_config[] __initdata = {
97 GPIO51_nPIOW, 98 GPIO51_nPIOW,
98 GPIO85_nPCE_1, 99 GPIO85_nPCE_1,
99 GPIO54_nPCE_2, 100 GPIO54_nPCE_2,
100 GPIO79_PSKTSEL,
101 GPIO55_nPREG, 101 GPIO55_nPREG,
102 GPIO56_nPWAIT, 102 GPIO56_nPWAIT,
103 GPIO57_nIOIS16, 103 GPIO57_nIOIS16,
104 GPIO104_PSKTSEL,
104 105
105 /* MMC */ 106 /* MMC */
106 GPIO32_MMC_CLK, 107 GPIO32_MMC_CLK,
@@ -686,7 +687,6 @@ static void __init akita_init(void)
686 spitz_pcmcia_config.num_devs = 1; 687 spitz_pcmcia_config.num_devs = 1;
687 platform_scoop_config = &spitz_pcmcia_config; 688 platform_scoop_config = &spitz_pcmcia_config;
688 689
689 pxa_set_i2c_info(NULL);
690 i2c_register_board_info(0, ARRAY_AND_SIZE(akita_i2c_board_info)); 690 i2c_register_board_info(0, ARRAY_AND_SIZE(akita_i2c_board_info));
691 691
692 common_init(); 692 common_init();
diff --git a/arch/ia64/include/asm/intrinsics.h b/arch/ia64/include/asm/intrinsics.h
index 47d686dba1eb..a3e44a5ed497 100644
--- a/arch/ia64/include/asm/intrinsics.h
+++ b/arch/ia64/include/asm/intrinsics.h
@@ -226,7 +226,7 @@ extern long ia64_cmpxchg_called_with_bad_pointer (void);
226/************************************************/ 226/************************************************/
227#define ia64_ssm IA64_INTRINSIC_MACRO(ssm) 227#define ia64_ssm IA64_INTRINSIC_MACRO(ssm)
228#define ia64_rsm IA64_INTRINSIC_MACRO(rsm) 228#define ia64_rsm IA64_INTRINSIC_MACRO(rsm)
229#define ia64_getreg IA64_INTRINSIC_API(getreg) 229#define ia64_getreg IA64_INTRINSIC_MACRO(getreg)
230#define ia64_setreg IA64_INTRINSIC_API(setreg) 230#define ia64_setreg IA64_INTRINSIC_API(setreg)
231#define ia64_set_rr IA64_INTRINSIC_API(set_rr) 231#define ia64_set_rr IA64_INTRINSIC_API(set_rr)
232#define ia64_get_rr IA64_INTRINSIC_API(get_rr) 232#define ia64_get_rr IA64_INTRINSIC_API(get_rr)
diff --git a/arch/ia64/include/asm/paravirt_privop.h b/arch/ia64/include/asm/paravirt_privop.h
index d577aac11835..0b597424fcfc 100644
--- a/arch/ia64/include/asm/paravirt_privop.h
+++ b/arch/ia64/include/asm/paravirt_privop.h
@@ -78,6 +78,19 @@ extern unsigned long ia64_native_getreg_func(int regnum);
78 ia64_native_rsm(mask); \ 78 ia64_native_rsm(mask); \
79 } while (0) 79 } while (0)
80 80
81/* returned ip value should be the one in the caller,
82 * not in __paravirt_getreg() */
83#define paravirt_getreg(reg) \
84 ({ \
85 unsigned long res; \
86 BUILD_BUG_ON(!__builtin_constant_p(reg)); \
87 if ((reg) == _IA64_REG_IP) \
88 res = ia64_native_getreg(_IA64_REG_IP); \
89 else \
90 res = pv_cpu_ops.getreg(reg); \
91 res; \
92 })
93
81/****************************************************************************** 94/******************************************************************************
82 * replacement of hand written assembly codes. 95 * replacement of hand written assembly codes.
83 */ 96 */
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 7ef0c594f5ed..d435f4a7a96c 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -499,6 +499,7 @@ GLOBAL_ENTRY(prefetch_stack)
499END(prefetch_stack) 499END(prefetch_stack)
500 500
501GLOBAL_ENTRY(kernel_execve) 501GLOBAL_ENTRY(kernel_execve)
502 rum psr.ac
502 mov r15=__NR_execve // put syscall number in place 503 mov r15=__NR_execve // put syscall number in place
503 break __BREAK_SYSCALL 504 break __BREAK_SYSCALL
504 br.ret.sptk.many rp 505 br.ret.sptk.many rp
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 66e491d8baac..59301c472800 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -260,7 +260,7 @@ start_ap:
260 * Switch into virtual mode: 260 * Switch into virtual mode:
261 */ 261 */
262 movl r16=(IA64_PSR_IT|IA64_PSR_IC|IA64_PSR_DT|IA64_PSR_RT|IA64_PSR_DFH|IA64_PSR_BN \ 262 movl r16=(IA64_PSR_IT|IA64_PSR_IC|IA64_PSR_DT|IA64_PSR_RT|IA64_PSR_DFH|IA64_PSR_BN \
263 |IA64_PSR_DI) 263 |IA64_PSR_DI|IA64_PSR_AC)
264 ;; 264 ;;
265 mov cr.ipsr=r16 265 mov cr.ipsr=r16
266 movl r17=1f 266 movl r17=1f
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 7dd96c127177..bab1de2d2f6a 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1139,7 +1139,7 @@ ia64_mca_modify_original_stack(struct pt_regs *regs,
1139 return previous_current; 1139 return previous_current;
1140 1140
1141no_mod: 1141no_mod:
1142 printk(KERN_INFO "cpu %d, %s %s, original stack not modified\n", 1142 mprintk(KERN_INFO "cpu %d, %s %s, original stack not modified\n",
1143 smp_processor_id(), type, msg); 1143 smp_processor_id(), type, msg);
1144 return previous_current; 1144 return previous_current;
1145} 1145}
diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c
index de35d8e8b7d2..9f14c16f6369 100644
--- a/arch/ia64/kernel/paravirt.c
+++ b/arch/ia64/kernel/paravirt.c
@@ -130,7 +130,7 @@ ia64_native_getreg_func(int regnum)
130 unsigned long res = -1; 130 unsigned long res = -1;
131 switch (regnum) { 131 switch (regnum) {
132 CASE_GET_REG(GP); 132 CASE_GET_REG(GP);
133 CASE_GET_REG(IP); 133 /*CASE_GET_REG(IP);*/ /* returned ip value shouldn't be constant */
134 CASE_GET_REG(PSR); 134 CASE_GET_REG(PSR);
135 CASE_GET_REG(TP); 135 CASE_GET_REG(TP);
136 CASE_GET_REG(SP); 136 CASE_GET_REG(SP);
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index dbdb778efa05..2a92f637431d 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -19,7 +19,6 @@
19#include <linux/kernel.h> 19#include <linux/kernel.h>
20 20
21#include <asm/page.h> 21#include <asm/page.h>
22#include <asm/iommu.h>
23 22
24dma_addr_t bad_dma_address __read_mostly; 23dma_addr_t bad_dma_address __read_mostly;
25EXPORT_SYMBOL(bad_dma_address); 24EXPORT_SYMBOL(bad_dma_address);
diff --git a/arch/ia64/xen/hypercall.S b/arch/ia64/xen/hypercall.S
index d4ff0b9e79f1..45e02bb64a92 100644
--- a/arch/ia64/xen/hypercall.S
+++ b/arch/ia64/xen/hypercall.S
@@ -58,7 +58,7 @@ __HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR)
58__HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR) 58__HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR)
59 59
60#ifdef CONFIG_IA32_SUPPORT 60#ifdef CONFIG_IA32_SUPPORT
61__HCALL1(xen_get_eflag, HYPERPRIVOP_GET_EFLAG) 61__HCALL0(xen_get_eflag, HYPERPRIVOP_GET_EFLAG)
62__HCALL1(xen_set_eflag, HYPERPRIVOP_SET_EFLAG) // refer SDM vol1 3.1.8 62__HCALL1(xen_set_eflag, HYPERPRIVOP_SET_EFLAG) // refer SDM vol1 3.1.8
63#endif /* CONFIG_IA32_SUPPORT */ 63#endif /* CONFIG_IA32_SUPPORT */
64 64
diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h
index c8e554eafce3..b5cf6457305a 100644
--- a/arch/mips/include/asm/mach-rc32434/gpio.h
+++ b/arch/mips/include/asm/mach-rc32434/gpio.h
@@ -84,5 +84,7 @@ extern void set_434_reg(unsigned reg_offs, unsigned bit, unsigned len, unsigned
84extern unsigned get_434_reg(unsigned reg_offs); 84extern unsigned get_434_reg(unsigned reg_offs);
85extern void set_latch_u5(unsigned char or_mask, unsigned char nand_mask); 85extern void set_latch_u5(unsigned char or_mask, unsigned char nand_mask);
86extern unsigned char get_latch_u5(void); 86extern unsigned char get_latch_u5(void);
87extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
88extern void rb532_gpio_set_istat(int bit, unsigned gpio);
87 89
88#endif /* _RC32434_GPIO_H_ */ 90#endif /* _RC32434_GPIO_H_ */
diff --git a/arch/mips/include/asm/mach-rc32434/rb.h b/arch/mips/include/asm/mach-rc32434/rb.h
index 79e8ef67d0d3..f25a84916703 100644
--- a/arch/mips/include/asm/mach-rc32434/rb.h
+++ b/arch/mips/include/asm/mach-rc32434/rb.h
@@ -40,12 +40,14 @@
40#define BTCS 0x010040 40#define BTCS 0x010040
41#define BTCOMPARE 0x010044 41#define BTCOMPARE 0x010044
42#define GPIOBASE 0x050000 42#define GPIOBASE 0x050000
43#define GPIOCFG 0x050004 43/* Offsets relative to GPIOBASE */
44#define GPIOD 0x050008 44#define GPIOFUNC 0x00
45#define GPIOILEVEL 0x05000C 45#define GPIOCFG 0x04
46#define GPIOISTAT 0x050010 46#define GPIOD 0x08
47#define GPIONMIEN 0x050014 47#define GPIOILEVEL 0x0C
48#define IMASK6 0x038038 48#define GPIOISTAT 0x10
49#define GPIONMIEN 0x14
50#define IMASK6 0x38
49#define LO_WPX (1 << 0) 51#define LO_WPX (1 << 0)
50#define LO_ALE (1 << 1) 52#define LO_ALE (1 << 1)
51#define LO_CLE (1 << 2) 53#define LO_CLE (1 << 2)
diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h
index d3bd5c5aa2ec..9601ea950542 100644
--- a/arch/mips/include/asm/time.h
+++ b/arch/mips/include/asm/time.h
@@ -63,7 +63,7 @@ static inline int mips_clockevent_init(void)
63/* 63/*
64 * Initialize the count register as a clocksource 64 * Initialize the count register as a clocksource
65 */ 65 */
66#ifdef CONFIG_CEVT_R4K 66#ifdef CONFIG_CSRC_R4K
67extern int init_mips_clocksource(void); 67extern int init_mips_clocksource(void);
68#else 68#else
69static inline int init_mips_clocksource(void) 69static inline int init_mips_clocksource(void)
diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c
index 86e026f067bc..74fb74583b4e 100644
--- a/arch/mips/kernel/csrc-r4k.c
+++ b/arch/mips/kernel/csrc-r4k.c
@@ -27,7 +27,7 @@ int __init init_mips_clocksource(void)
27 if (!cpu_has_counter || !mips_hpt_frequency) 27 if (!cpu_has_counter || !mips_hpt_frequency)
28 return -ENXIO; 28 return -ENXIO;
29 29
30 /* Calclate a somewhat reasonable rating value */ 30 /* Calculate a somewhat reasonable rating value */
31 clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000; 31 clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
32 32
33 clocksource_set_clock(&clocksource_mips, mips_hpt_frequency); 33 clocksource_set_clock(&clocksource_mips, mips_hpt_frequency);
diff --git a/arch/mips/mm/sc-ip22.c b/arch/mips/mm/sc-ip22.c
index 1f602a110e10..13adb5782110 100644
--- a/arch/mips/mm/sc-ip22.c
+++ b/arch/mips/mm/sc-ip22.c
@@ -161,7 +161,7 @@ static inline int __init indy_sc_probe(void)
161 161
162/* XXX Check with wje if the Indy caches can differenciate between 162/* XXX Check with wje if the Indy caches can differenciate between
163 writeback + invalidate and just invalidate. */ 163 writeback + invalidate and just invalidate. */
164struct bcache_ops indy_sc_ops = { 164static struct bcache_ops indy_sc_ops = {
165 .bc_enable = indy_sc_enable, 165 .bc_enable = indy_sc_enable,
166 .bc_disable = indy_sc_disable, 166 .bc_disable = indy_sc_disable,
167 .bc_wback_inv = indy_sc_wback_invalidate, 167 .bc_wback_inv = indy_sc_wback_invalidate,
diff --git a/arch/mips/mti-malta/malta-amon.c b/arch/mips/mti-malta/malta-amon.c
index 96236bf33838..df9e526312a2 100644
--- a/arch/mips/mti-malta/malta-amon.c
+++ b/arch/mips/mti-malta/malta-amon.c
@@ -22,9 +22,9 @@
22#include <linux/init.h> 22#include <linux/init.h>
23#include <linux/smp.h> 23#include <linux/smp.h>
24 24
25#include <asm-mips/addrspace.h> 25#include <asm/addrspace.h>
26#include <asm-mips/mips-boards/launch.h> 26#include <asm/mips-boards/launch.h>
27#include <asm-mips/mipsmtregs.h> 27#include <asm/mipsmtregs.h>
28 28
29int amon_cpu_avail(int cpu) 29int amon_cpu_avail(int cpu)
30{ 30{
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index 2f22d714d5b0..c1c29181bd46 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -118,7 +118,7 @@ static struct platform_device cf_slot0 = {
118/* Resources and device for NAND */ 118/* Resources and device for NAND */
119static int rb532_dev_ready(struct mtd_info *mtd) 119static int rb532_dev_ready(struct mtd_info *mtd)
120{ 120{
121 return readl(IDT434_REG_BASE + GPIOD) & GPIO_RDY; 121 return gpio_get_value(GPIO_RDY);
122} 122}
123 123
124static void rb532_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) 124static void rb532_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c
index 70c4a6726377..0e84c8ab6a39 100644
--- a/arch/mips/rb532/gpio.c
+++ b/arch/mips/rb532/gpio.c
@@ -39,10 +39,6 @@
39struct rb532_gpio_chip { 39struct rb532_gpio_chip {
40 struct gpio_chip chip; 40 struct gpio_chip chip;
41 void __iomem *regbase; 41 void __iomem *regbase;
42 void (*set_int_level)(struct gpio_chip *chip, unsigned offset, int value);
43 int (*get_int_level)(struct gpio_chip *chip, unsigned offset);
44 void (*set_int_status)(struct gpio_chip *chip, unsigned offset, int value);
45 int (*get_int_status)(struct gpio_chip *chip, unsigned offset);
46}; 42};
47 43
48struct mpmc_device dev3; 44struct mpmc_device dev3;
@@ -111,15 +107,47 @@ unsigned char get_latch_u5(void)
111} 107}
112EXPORT_SYMBOL(get_latch_u5); 108EXPORT_SYMBOL(get_latch_u5);
113 109
110/* rb532_set_bit - sanely set a bit
111 *
112 * bitval: new value for the bit
113 * offset: bit index in the 4 byte address range
114 * ioaddr: 4 byte aligned address being altered
115 */
116static inline void rb532_set_bit(unsigned bitval,
117 unsigned offset, void __iomem *ioaddr)
118{
119 unsigned long flags;
120 u32 val;
121
122 bitval = !!bitval; /* map parameter to {0,1} */
123
124 local_irq_save(flags);
125
126 val = readl(ioaddr);
127 val &= ~( ~bitval << offset ); /* unset bit if bitval == 0 */
128 val |= ( bitval << offset ); /* set bit if bitval == 1 */
129 writel(val, ioaddr);
130
131 local_irq_restore(flags);
132}
133
134/* rb532_get_bit - read a bit
135 *
136 * returns the boolean state of the bit, which may be > 1
137 */
138static inline int rb532_get_bit(unsigned offset, void __iomem *ioaddr)
139{
140 return (readl(ioaddr) & (1 << offset));
141}
142
114/* 143/*
115 * Return GPIO level */ 144 * Return GPIO level */
116static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset) 145static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset)
117{ 146{
118 u32 mask = 1 << offset;
119 struct rb532_gpio_chip *gpch; 147 struct rb532_gpio_chip *gpch;
120 148
121 gpch = container_of(chip, struct rb532_gpio_chip, chip); 149 gpch = container_of(chip, struct rb532_gpio_chip, chip);
122 return readl(gpch->regbase + GPIOD) & mask; 150 return rb532_get_bit(offset, gpch->regbase + GPIOD);
123} 151}
124 152
125/* 153/*
@@ -128,23 +156,10 @@ static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset)
128static void rb532_gpio_set(struct gpio_chip *chip, 156static void rb532_gpio_set(struct gpio_chip *chip,
129 unsigned offset, int value) 157 unsigned offset, int value)
130{ 158{
131 unsigned long flags;
132 u32 mask = 1 << offset;
133 u32 tmp;
134 struct rb532_gpio_chip *gpch; 159 struct rb532_gpio_chip *gpch;
135 void __iomem *gpvr;
136 160
137 gpch = container_of(chip, struct rb532_gpio_chip, chip); 161 gpch = container_of(chip, struct rb532_gpio_chip, chip);
138 gpvr = gpch->regbase + GPIOD; 162 rb532_set_bit(value, offset, gpch->regbase + GPIOD);
139
140 local_irq_save(flags);
141 tmp = readl(gpvr);
142 if (value)
143 tmp |= mask;
144 else
145 tmp &= ~mask;
146 writel(tmp, gpvr);
147 local_irq_restore(flags);
148} 163}
149 164
150/* 165/*
@@ -152,21 +167,14 @@ static void rb532_gpio_set(struct gpio_chip *chip,
152 */ 167 */
153static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset) 168static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
154{ 169{
155 unsigned long flags;
156 u32 mask = 1 << offset;
157 u32 value;
158 struct rb532_gpio_chip *gpch; 170 struct rb532_gpio_chip *gpch;
159 void __iomem *gpdr;
160 171
161 gpch = container_of(chip, struct rb532_gpio_chip, chip); 172 gpch = container_of(chip, struct rb532_gpio_chip, chip);
162 gpdr = gpch->regbase + GPIOCFG;
163 173
164 local_irq_save(flags); 174 if (rb532_get_bit(offset, gpch->regbase + GPIOFUNC))
165 value = readl(gpdr); 175 return 1; /* alternate function, GPIOCFG is ignored */
166 value &= ~mask;
167 writel(value, gpdr);
168 local_irq_restore(flags);
169 176
177 rb532_set_bit(0, offset, gpch->regbase + GPIOCFG);
170 return 0; 178 return 0;
171} 179}
172 180
@@ -176,117 +184,60 @@ static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
176static int rb532_gpio_direction_output(struct gpio_chip *chip, 184static int rb532_gpio_direction_output(struct gpio_chip *chip,
177 unsigned offset, int value) 185 unsigned offset, int value)
178{ 186{
179 unsigned long flags;
180 u32 mask = 1 << offset;
181 u32 tmp;
182 struct rb532_gpio_chip *gpch; 187 struct rb532_gpio_chip *gpch;
183 void __iomem *gpdr;
184 188
185 gpch = container_of(chip, struct rb532_gpio_chip, chip); 189 gpch = container_of(chip, struct rb532_gpio_chip, chip);
186 writel(mask, gpch->regbase + GPIOD);
187 gpdr = gpch->regbase + GPIOCFG;
188 190
189 local_irq_save(flags); 191 if (rb532_get_bit(offset, gpch->regbase + GPIOFUNC))
190 tmp = readl(gpdr); 192 return 1; /* alternate function, GPIOCFG is ignored */
191 tmp |= mask;
192 writel(tmp, gpdr);
193 local_irq_restore(flags);
194 193
194 /* set the initial output value */
195 rb532_set_bit(value, offset, gpch->regbase + GPIOD);
196
197 rb532_set_bit(1, offset, gpch->regbase + GPIOCFG);
195 return 0; 198 return 0;
196} 199}
197 200
198/* 201static struct rb532_gpio_chip rb532_gpio_chip[] = {
199 * Set the GPIO interrupt level 202 [0] = {
200 */ 203 .chip = {
201static void rb532_gpio_set_int_level(struct gpio_chip *chip, 204 .label = "gpio0",
202 unsigned offset, int value) 205 .direction_input = rb532_gpio_direction_input,
203{ 206 .direction_output = rb532_gpio_direction_output,
204 unsigned long flags; 207 .get = rb532_gpio_get,
205 u32 mask = 1 << offset; 208 .set = rb532_gpio_set,
206 u32 tmp; 209 .base = 0,
207 struct rb532_gpio_chip *gpch; 210 .ngpio = 32,
208 void __iomem *gpil; 211 },
209 212 },
210 gpch = container_of(chip, struct rb532_gpio_chip, chip); 213};
211 gpil = gpch->regbase + GPIOILEVEL;
212
213 local_irq_save(flags);
214 tmp = readl(gpil);
215 if (value)
216 tmp |= mask;
217 else
218 tmp &= ~mask;
219 writel(tmp, gpil);
220 local_irq_restore(flags);
221}
222 214
223/* 215/*
224 * Get the GPIO interrupt level 216 * Set GPIO interrupt level
225 */ 217 */
226static int rb532_gpio_get_int_level(struct gpio_chip *chip, unsigned offset) 218void rb532_gpio_set_ilevel(int bit, unsigned gpio)
227{ 219{
228 u32 mask = 1 << offset; 220 rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOILEVEL);
229 struct rb532_gpio_chip *gpch;
230
231 gpch = container_of(chip, struct rb532_gpio_chip, chip);
232 return readl(gpch->regbase + GPIOILEVEL) & mask;
233} 221}
222EXPORT_SYMBOL(rb532_gpio_set_ilevel);
234 223
235/* 224/*
236 * Set the GPIO interrupt status 225 * Set GPIO interrupt status
237 */ 226 */
238static void rb532_gpio_set_int_status(struct gpio_chip *chip, 227void rb532_gpio_set_istat(int bit, unsigned gpio)
239 unsigned offset, int value)
240{ 228{
241 unsigned long flags; 229 rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOISTAT);
242 u32 mask = 1 << offset;
243 u32 tmp;
244 struct rb532_gpio_chip *gpch;
245 void __iomem *gpis;
246
247 gpch = container_of(chip, struct rb532_gpio_chip, chip);
248 gpis = gpch->regbase + GPIOISTAT;
249
250 local_irq_save(flags);
251 tmp = readl(gpis);
252 if (value)
253 tmp |= mask;
254 else
255 tmp &= ~mask;
256 writel(tmp, gpis);
257 local_irq_restore(flags);
258} 230}
231EXPORT_SYMBOL(rb532_gpio_set_istat);
259 232
260/* 233/*
261 * Get the GPIO interrupt status 234 * Configure GPIO alternate function
262 */ 235 */
263static int rb532_gpio_get_int_status(struct gpio_chip *chip, unsigned offset) 236static void rb532_gpio_set_func(int bit, unsigned gpio)
264{ 237{
265 u32 mask = 1 << offset; 238 rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOFUNC);
266 struct rb532_gpio_chip *gpch;
267
268 gpch = container_of(chip, struct rb532_gpio_chip, chip);
269 return readl(gpch->regbase + GPIOISTAT) & mask;
270} 239}
271 240
272static struct rb532_gpio_chip rb532_gpio_chip[] = {
273 [0] = {
274 .chip = {
275 .label = "gpio0",
276 .direction_input = rb532_gpio_direction_input,
277 .direction_output = rb532_gpio_direction_output,
278 .get = rb532_gpio_get,
279 .set = rb532_gpio_set,
280 .base = 0,
281 .ngpio = 32,
282 },
283 .get_int_level = rb532_gpio_get_int_level,
284 .set_int_level = rb532_gpio_set_int_level,
285 .get_int_status = rb532_gpio_get_int_status,
286 .set_int_status = rb532_gpio_set_int_status,
287 },
288};
289
290int __init rb532_gpio_init(void) 241int __init rb532_gpio_init(void)
291{ 242{
292 struct resource *r; 243 struct resource *r;
@@ -310,9 +261,11 @@ int __init rb532_gpio_init(void)
310 return -ENXIO; 261 return -ENXIO;
311 } 262 }
312 263
313 /* Set the interrupt status and level for the CF pin */ 264 /* configure CF_GPIO_NUM as CFRDY IRQ source */
314 rb532_gpio_set_int_level(&rb532_gpio_chip->chip, CF_GPIO_NUM, 1); 265 rb532_gpio_set_func(0, CF_GPIO_NUM);
315 rb532_gpio_set_int_status(&rb532_gpio_chip->chip, CF_GPIO_NUM, 0); 266 rb532_gpio_direction_input(&rb532_gpio_chip->chip, CF_GPIO_NUM);
267 rb532_gpio_set_ilevel(1, CF_GPIO_NUM);
268 rb532_gpio_set_istat(0, CF_GPIO_NUM);
316 269
317 return 0; 270 return 0;
318} 271}
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 90904f9dfc50..927db3668b6f 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -183,10 +183,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
183 * being 64 bit in both cases. 183 * being 64 bit in both cases.
184 */ 184 */
185 185
186static long translate_usr_offset(long offset) 186static compat_ulong_t translate_usr_offset(compat_ulong_t offset)
187{ 187{
188 if (offset < 0) 188 if (offset < 0)
189 return -1; 189 return sizeof(struct pt_regs);
190 else if (offset <= 32*4) /* gr[0..31] */ 190 else if (offset <= 32*4) /* gr[0..31] */
191 return offset * 2 + 4; 191 return offset * 2 + 4;
192 else if (offset <= 32*4+32*8) /* gr[0..31] + fr[0..31] */ 192 else if (offset <= 32*4+32*8) /* gr[0..31] + fr[0..31] */
@@ -194,7 +194,7 @@ static long translate_usr_offset(long offset)
194 else if (offset < sizeof(struct pt_regs)/2 + 32*4) 194 else if (offset < sizeof(struct pt_regs)/2 + 32*4)
195 return offset * 2 + 4 - 32*8; 195 return offset * 2 + 4 - 32*8;
196 else 196 else
197 return -1; 197 return sizeof(struct pt_regs);
198} 198}
199 199
200long compat_arch_ptrace(struct task_struct *child, compat_long_t request, 200long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
@@ -209,7 +209,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
209 if (addr & (sizeof(compat_uint_t)-1)) 209 if (addr & (sizeof(compat_uint_t)-1))
210 break; 210 break;
211 addr = translate_usr_offset(addr); 211 addr = translate_usr_offset(addr);
212 if (addr < 0) 212 if (addr >= sizeof(struct pt_regs))
213 break; 213 break;
214 214
215 tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr); 215 tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr);
@@ -236,7 +236,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
236 if (addr & (sizeof(compat_uint_t)-1)) 236 if (addr & (sizeof(compat_uint_t)-1))
237 break; 237 break;
238 addr = translate_usr_offset(addr); 238 addr = translate_usr_offset(addr);
239 if (addr < 0) 239 if (addr >= sizeof(struct pt_regs))
240 break; 240 break;
241 if (addr >= PT_FR0 && addr <= PT_FR31 + 4) { 241 if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
242 /* Special case, fp regs are 64 bits anyway */ 242 /* Special case, fp regs are 64 bits anyway */
diff --git a/arch/sparc/include/asm/unistd_32.h b/arch/sparc/include/asm/unistd_32.h
index 648643a9f139..0d13d2a4c76f 100644
--- a/arch/sparc/include/asm/unistd_32.h
+++ b/arch/sparc/include/asm/unistd_32.h
@@ -338,8 +338,9 @@
338#define __NR_dup3 320 338#define __NR_dup3 320
339#define __NR_pipe2 321 339#define __NR_pipe2 321
340#define __NR_inotify_init1 322 340#define __NR_inotify_init1 322
341#define __NR_accept4 323
341 342
342#define NR_SYSCALLS 323 343#define NR_SYSCALLS 324
343 344
344/* Sparc 32-bit only has the "setresuid32", "getresuid32" variants, 345/* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,
345 * it never had the plain ones and there is no value to adding those 346 * it never had the plain ones and there is no value to adding those
diff --git a/arch/sparc/include/asm/unistd_64.h b/arch/sparc/include/asm/unistd_64.h
index c5cc0e052321..fa5d3c0343c7 100644
--- a/arch/sparc/include/asm/unistd_64.h
+++ b/arch/sparc/include/asm/unistd_64.h
@@ -340,8 +340,9 @@
340#define __NR_dup3 320 340#define __NR_dup3 320
341#define __NR_pipe2 321 341#define __NR_pipe2 321
342#define __NR_inotify_init1 322 342#define __NR_inotify_init1 322
343#define __NR_accept4 323
343 344
344#define NR_SYSCALLS 323 345#define NR_SYSCALLS 324
345 346
346#ifdef __KERNEL__ 347#ifdef __KERNEL__
347#define __ARCH_WANT_IPC_PARSE_VERSION 348#define __ARCH_WANT_IPC_PARSE_VERSION
diff --git a/arch/sparc/kernel/systbls.S b/arch/sparc/kernel/systbls.S
index e1b9233b90ab..7d0807586442 100644
--- a/arch/sparc/kernel/systbls.S
+++ b/arch/sparc/kernel/systbls.S
@@ -81,4 +81,4 @@ sys_call_table:
81/*305*/ .long sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait 81/*305*/ .long sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait
82/*310*/ .long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate 82/*310*/ .long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
83/*315*/ .long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1 83/*315*/ .long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
84/*320*/ .long sys_dup3, sys_pipe2, sys_inotify_init1 84/*320*/ .long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4
diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S
index ade18ba0c686..f061c4dda9ef 100644
--- a/arch/sparc64/kernel/sys32.S
+++ b/arch/sparc64/kernel/sys32.S
@@ -150,7 +150,7 @@ sys32_mmap2:
150sys32_socketcall: /* %o0=call, %o1=args */ 150sys32_socketcall: /* %o0=call, %o1=args */
151 cmp %o0, 1 151 cmp %o0, 1
152 bl,pn %xcc, do_einval 152 bl,pn %xcc, do_einval
153 cmp %o0, 17 153 cmp %o0, 18
154 bg,pn %xcc, do_einval 154 bg,pn %xcc, do_einval
155 sub %o0, 1, %o0 155 sub %o0, 1, %o0
156 sllx %o0, 5, %o0 156 sllx %o0, 5, %o0
@@ -319,6 +319,15 @@ do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int)
319 nop 319 nop
320 nop 320 nop
321 nop 321 nop
322do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */
32363: ldswa [%o1 + 0x0] %asi, %o0
324 sethi %hi(sys_accept4), %g1
32564: lduwa [%o1 + 0x8] %asi, %o2
32665: ldswa [%o1 + 0xc] %asi, %o3
327 jmpl %g1 + %lo(sys_accept4), %g0
32866: lduwa [%o1 + 0x4] %asi, %o1
329 nop
330 nop
322 331
323 .section __ex_table,"a" 332 .section __ex_table,"a"
324 .align 4 333 .align 4
@@ -353,4 +362,6 @@ do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int)
353 .word 57b, __retl_efault, 58b, __retl_efault 362 .word 57b, __retl_efault, 58b, __retl_efault
354 .word 59b, __retl_efault, 60b, __retl_efault 363 .word 59b, __retl_efault, 60b, __retl_efault
355 .word 61b, __retl_efault, 62b, __retl_efault 364 .word 61b, __retl_efault, 62b, __retl_efault
365 .word 63b, __retl_efault, 64b, __retl_efault
366 .word 65b, __retl_efault, 66b, __retl_efault
356 .previous 367 .previous
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index b2fa4c163638..9fc78cf354bd 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -82,7 +82,7 @@ sys_call_table32:
82 .word compat_sys_set_mempolicy, compat_sys_kexec_load, compat_sys_move_pages, sys_getcpu, compat_sys_epoll_pwait 82 .word compat_sys_set_mempolicy, compat_sys_kexec_load, compat_sys_move_pages, sys_getcpu, compat_sys_epoll_pwait
83/*310*/ .word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate 83/*310*/ .word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate
84 .word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1 84 .word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1
85/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1 85/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4
86 86
87#endif /* CONFIG_COMPAT */ 87#endif /* CONFIG_COMPAT */
88 88
@@ -156,4 +156,4 @@ sys_call_table:
156 .word sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait 156 .word sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait
157/*310*/ .word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate 157/*310*/ .word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
158 .word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1 158 .word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
159/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1 159/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 93224b569187..7a146baaa990 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -29,6 +29,8 @@ config X86
29 select HAVE_FTRACE_MCOUNT_RECORD 29 select HAVE_FTRACE_MCOUNT_RECORD
30 select HAVE_DYNAMIC_FTRACE 30 select HAVE_DYNAMIC_FTRACE
31 select HAVE_FUNCTION_TRACER 31 select HAVE_FUNCTION_TRACER
32 select HAVE_FUNCTION_RET_TRACER if X86_32
33 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
32 select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64) 34 select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
33 select HAVE_ARCH_KGDB if !X86_VOYAGER 35 select HAVE_ARCH_KGDB if !X86_VOYAGER
34 select HAVE_ARCH_TRACEHOOK 36 select HAVE_ARCH_TRACEHOOK
@@ -167,9 +169,12 @@ config GENERIC_PENDING_IRQ
167config X86_SMP 169config X86_SMP
168 bool 170 bool
169 depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64) 171 depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64)
170 select USE_GENERIC_SMP_HELPERS
171 default y 172 default y
172 173
174config USE_GENERIC_SMP_HELPERS
175 def_bool y
176 depends on SMP
177
173config X86_32_SMP 178config X86_32_SMP
174 def_bool y 179 def_bool y
175 depends on X86_32 && SMP 180 depends on X86_32 && SMP
@@ -957,7 +962,7 @@ config ARCH_PHYS_ADDR_T_64BIT
957config NUMA 962config NUMA
958 bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)" 963 bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
959 depends on SMP 964 depends on SMP
960 depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && BROKEN) 965 depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
961 default n if X86_PC 966 default n if X86_PC
962 default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP) 967 default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
963 help 968 help
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 2a3dfbd5e677..fa013f529b74 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -186,14 +186,10 @@ config IOMMU_LEAK
186 Add a simple leak tracer to the IOMMU code. This is useful when you 186 Add a simple leak tracer to the IOMMU code. This is useful when you
187 are debugging a buggy device driver that leaks IOMMU mappings. 187 are debugging a buggy device driver that leaks IOMMU mappings.
188 188
189config MMIOTRACE_HOOKS
190 bool
191
192config MMIOTRACE 189config MMIOTRACE
193 bool "Memory mapped IO tracing" 190 bool "Memory mapped IO tracing"
194 depends on DEBUG_KERNEL && PCI 191 depends on DEBUG_KERNEL && PCI
195 select TRACING 192 select TRACING
196 select MMIOTRACE_HOOKS
197 help 193 help
198 Mmiotrace traces Memory Mapped I/O access and is meant for 194 Mmiotrace traces Memory Mapped I/O access and is meant for
199 debugging and reverse engineering. It is called from the ioremap 195 debugging and reverse engineering. It is called from the ioremap
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index 9e8bc29b8b17..2bb43b433e07 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -17,8 +17,41 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr)
17 */ 17 */
18 return addr - 1; 18 return addr - 1;
19} 19}
20#endif
21 20
21#ifdef CONFIG_DYNAMIC_FTRACE
22
23struct dyn_arch_ftrace {
24 /* No extra data needed for x86 */
25};
26
27#endif /* CONFIG_DYNAMIC_FTRACE */
28#endif /* __ASSEMBLY__ */
22#endif /* CONFIG_FUNCTION_TRACER */ 29#endif /* CONFIG_FUNCTION_TRACER */
23 30
31#ifdef CONFIG_FUNCTION_RET_TRACER
32#define FTRACE_RET_STACK_SIZE 20
33
34#ifndef __ASSEMBLY__
35
36/*
37 * Stack of return addresses for functions
38 * of a thread.
39 * Used in struct thread_info
40 */
41struct ftrace_ret_stack {
42 unsigned long ret;
43 unsigned long func;
44 unsigned long long calltime;
45};
46
47/*
48 * Primary handler of a function return.
49 * It relays on ftrace_return_to_handler.
50 * Defined in entry32.S
51 */
52extern void return_to_handler(void);
53
54#endif /* __ASSEMBLY__ */
55#endif /* CONFIG_FUNCTION_RET_TRACER */
56
24#endif /* _ASM_X86_FTRACE_H */ 57#endif /* _ASM_X86_FTRACE_H */
diff --git a/arch/x86/include/asm/iomap.h b/arch/x86/include/asm/iomap.h
new file mode 100644
index 000000000000..c1f06289b14b
--- /dev/null
+++ b/arch/x86/include/asm/iomap.h
@@ -0,0 +1,30 @@
1/*
2 * Copyright © 2008 Ingo Molnar
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
17 */
18
19#include <linux/fs.h>
20#include <linux/mm.h>
21#include <linux/uaccess.h>
22#include <asm/cacheflush.h>
23#include <asm/pgtable.h>
24#include <asm/tlbflush.h>
25
26void *
27iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
28
29void
30iounmap_atomic(void *kvaddr, enum km_type type);
diff --git a/arch/x86/include/asm/mmzone_32.h b/arch/x86/include/asm/mmzone_32.h
index 485bdf059ffb..07f1af494ca5 100644
--- a/arch/x86/include/asm/mmzone_32.h
+++ b/arch/x86/include/asm/mmzone_32.h
@@ -34,10 +34,14 @@ static inline void get_memcfg_numa(void)
34 34
35extern int early_pfn_to_nid(unsigned long pfn); 35extern int early_pfn_to_nid(unsigned long pfn);
36 36
37extern void resume_map_numa_kva(pgd_t *pgd);
38
37#else /* !CONFIG_NUMA */ 39#else /* !CONFIG_NUMA */
38 40
39#define get_memcfg_numa get_memcfg_numa_flat 41#define get_memcfg_numa get_memcfg_numa_flat
40 42
43static inline void resume_map_numa_kva(pgd_t *pgd) {}
44
41#endif /* CONFIG_NUMA */ 45#endif /* CONFIG_NUMA */
42 46
43#ifdef CONFIG_DISCONTIGMEM 47#ifdef CONFIG_DISCONTIGMEM
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index e44d379faad2..e90e81ef6ab9 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -20,6 +20,8 @@
20struct task_struct; 20struct task_struct;
21struct exec_domain; 21struct exec_domain;
22#include <asm/processor.h> 22#include <asm/processor.h>
23#include <asm/ftrace.h>
24#include <asm/atomic.h>
23 25
24struct thread_info { 26struct thread_info {
25 struct task_struct *task; /* main task structure */ 27 struct task_struct *task; /* main task structure */
@@ -38,8 +40,36 @@ struct thread_info {
38 */ 40 */
39 __u8 supervisor_stack[0]; 41 __u8 supervisor_stack[0];
40#endif 42#endif
43
44#ifdef CONFIG_FUNCTION_RET_TRACER
45 /* Index of current stored adress in ret_stack */
46 int curr_ret_stack;
47 /* Stack of return addresses for return function tracing */
48 struct ftrace_ret_stack ret_stack[FTRACE_RET_STACK_SIZE];
49 /*
50 * Number of functions that haven't been traced
51 * because of depth overrun.
52 */
53 atomic_t trace_overrun;
54#endif
41}; 55};
42 56
57#ifdef CONFIG_FUNCTION_RET_TRACER
58#define INIT_THREAD_INFO(tsk) \
59{ \
60 .task = &tsk, \
61 .exec_domain = &default_exec_domain, \
62 .flags = 0, \
63 .cpu = 0, \
64 .preempt_count = 1, \
65 .addr_limit = KERNEL_DS, \
66 .restart_block = { \
67 .fn = do_no_restart_syscall, \
68 }, \
69 .curr_ret_stack = -1,\
70 .trace_overrun = ATOMIC_INIT(0) \
71}
72#else
43#define INIT_THREAD_INFO(tsk) \ 73#define INIT_THREAD_INFO(tsk) \
44{ \ 74{ \
45 .task = &tsk, \ 75 .task = &tsk, \
@@ -52,6 +82,7 @@ struct thread_info {
52 .fn = do_no_restart_syscall, \ 82 .fn = do_no_restart_syscall, \
53 }, \ 83 }, \
54} 84}
85#endif
55 86
56#define init_thread_info (init_thread_union.thread_info) 87#define init_thread_info (init_thread_union.thread_info)
57#define init_stack (init_thread_union.stack) 88#define init_stack (init_thread_union.stack)
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 664f15280f14..f8cfd00db450 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -46,7 +46,7 @@ int __copy_from_user(void *dst, const void __user *src, unsigned size)
46 return ret; 46 return ret;
47 case 10: 47 case 10:
48 __get_user_asm(*(u64 *)dst, (u64 __user *)src, 48 __get_user_asm(*(u64 *)dst, (u64 __user *)src,
49 ret, "q", "", "=r", 16); 49 ret, "q", "", "=r", 10);
50 if (unlikely(ret)) 50 if (unlikely(ret))
51 return ret; 51 return ret;
52 __get_user_asm(*(u16 *)(8 + (char *)dst), 52 __get_user_asm(*(u16 *)(8 + (char *)dst),
diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h
index 834b2c1d89fb..d2e415e6666f 100644
--- a/arch/x86/include/asm/unistd_64.h
+++ b/arch/x86/include/asm/unistd_64.h
@@ -639,8 +639,8 @@ __SYSCALL(__NR_fallocate, sys_fallocate)
639__SYSCALL(__NR_timerfd_settime, sys_timerfd_settime) 639__SYSCALL(__NR_timerfd_settime, sys_timerfd_settime)
640#define __NR_timerfd_gettime 287 640#define __NR_timerfd_gettime 287
641__SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime) 641__SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime)
642#define __NR_paccept 288 642#define __NR_accept4 288
643__SYSCALL(__NR_paccept, sys_paccept) 643__SYSCALL(__NR_accept4, sys_accept4)
644#define __NR_signalfd4 289 644#define __NR_signalfd4 289
645__SYSCALL(__NR_signalfd4, sys_signalfd4) 645__SYSCALL(__NR_signalfd4, sys_signalfd4)
646#define __NR_eventfd2 290 646#define __NR_eventfd2 290
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index e489ff9cb3e2..1d8ed95da846 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -14,6 +14,11 @@ CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
14CFLAGS_REMOVE_ftrace.o = -pg 14CFLAGS_REMOVE_ftrace.o = -pg
15endif 15endif
16 16
17ifdef CONFIG_FUNCTION_RET_TRACER
18# Don't trace __switch_to() but let it for function tracer
19CFLAGS_REMOVE_process_32.o = -pg
20endif
21
17# 22#
18# vsyscalls (which work on the user stack) should have 23# vsyscalls (which work on the user stack) should have
19# no stack-protector checks: 24# no stack-protector checks:
@@ -65,6 +70,7 @@ obj-$(CONFIG_X86_LOCAL_APIC) += apic.o nmi.o
65obj-$(CONFIG_X86_IO_APIC) += io_apic.o 70obj-$(CONFIG_X86_IO_APIC) += io_apic.o
66obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o 71obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
67obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o 72obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
73obj-$(CONFIG_FUNCTION_RET_TRACER) += ftrace.o
68obj-$(CONFIG_KEXEC) += machine_kexec_$(BITS).o 74obj-$(CONFIG_KEXEC) += machine_kexec_$(BITS).o
69obj-$(CONFIG_KEXEC) += relocate_kernel_$(BITS).o crash.o 75obj-$(CONFIG_KEXEC) += relocate_kernel_$(BITS).o crash.o
70obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o 76obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 331b318304eb..e4899e0e8787 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -537,7 +537,7 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom,
537 address >>= PAGE_SHIFT; 537 address >>= PAGE_SHIFT;
538 iommu_area_free(dom->bitmap, address, pages); 538 iommu_area_free(dom->bitmap, address, pages);
539 539
540 if (address + pages >= dom->next_bit) 540 if (address >= dom->next_bit)
541 dom->need_flush = true; 541 dom->need_flush = true;
542} 542}
543 543
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 0cdcda35a05f..30ae2701b3df 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -121,7 +121,7 @@ u16 amd_iommu_last_bdf; /* largest PCI device id we have
121LIST_HEAD(amd_iommu_unity_map); /* a list of required unity mappings 121LIST_HEAD(amd_iommu_unity_map); /* a list of required unity mappings
122 we find in ACPI */ 122 we find in ACPI */
123unsigned amd_iommu_aperture_order = 26; /* size of aperture in power of 2 */ 123unsigned amd_iommu_aperture_order = 26; /* size of aperture in power of 2 */
124int amd_iommu_isolate; /* if 1, device isolation is enabled */ 124int amd_iommu_isolate = 1; /* if 1, device isolation is enabled */
125bool amd_iommu_unmap_flush; /* if true, flush on every unmap */ 125bool amd_iommu_unmap_flush; /* if true, flush on every unmap */
126 126
127LIST_HEAD(amd_iommu_list); /* list of all AMD IOMMUs in the 127LIST_HEAD(amd_iommu_list); /* list of all AMD IOMMUs in the
@@ -1213,7 +1213,9 @@ static int __init parse_amd_iommu_options(char *str)
1213 for (; *str; ++str) { 1213 for (; *str; ++str) {
1214 if (strncmp(str, "isolate", 7) == 0) 1214 if (strncmp(str, "isolate", 7) == 0)
1215 amd_iommu_isolate = 1; 1215 amd_iommu_isolate = 1;
1216 if (strncmp(str, "fullflush", 11) == 0) 1216 if (strncmp(str, "share", 5) == 0)
1217 amd_iommu_isolate = 0;
1218 if (strncmp(str, "fullflush", 9) == 0)
1217 amd_iommu_unmap_flush = true; 1219 amd_iommu_unmap_flush = true;
1218 } 1220 }
1219 1221
diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c
index 2b69994fd3a8..d1a121443bde 100644
--- a/arch/x86/kernel/ds.c
+++ b/arch/x86/kernel/ds.c
@@ -236,17 +236,33 @@ static inline struct ds_context *ds_alloc_context(struct task_struct *task)
236 struct ds_context *context = *p_context; 236 struct ds_context *context = *p_context;
237 237
238 if (!context) { 238 if (!context) {
239 spin_unlock(&ds_lock);
240
239 context = kzalloc(sizeof(*context), GFP_KERNEL); 241 context = kzalloc(sizeof(*context), GFP_KERNEL);
240 242
241 if (!context) 243 if (!context) {
244 spin_lock(&ds_lock);
242 return NULL; 245 return NULL;
246 }
243 247
244 context->ds = kzalloc(ds_cfg.sizeof_ds, GFP_KERNEL); 248 context->ds = kzalloc(ds_cfg.sizeof_ds, GFP_KERNEL);
245 if (!context->ds) { 249 if (!context->ds) {
246 kfree(context); 250 kfree(context);
251 spin_lock(&ds_lock);
247 return NULL; 252 return NULL;
248 } 253 }
249 254
255 spin_lock(&ds_lock);
256 /*
257 * Check for race - another CPU could have allocated
258 * it meanwhile:
259 */
260 if (*p_context) {
261 kfree(context->ds);
262 kfree(context);
263 return *p_context;
264 }
265
250 *p_context = context; 266 *p_context = context;
251 267
252 context->this = p_context; 268 context->this = p_context;
@@ -384,14 +400,15 @@ static int ds_request(struct task_struct *task, void *base, size_t size,
384 400
385 spin_lock(&ds_lock); 401 spin_lock(&ds_lock);
386 402
387 if (!check_tracer(task))
388 return -EPERM;
389
390 error = -ENOMEM; 403 error = -ENOMEM;
391 context = ds_alloc_context(task); 404 context = ds_alloc_context(task);
392 if (!context) 405 if (!context)
393 goto out_unlock; 406 goto out_unlock;
394 407
408 error = -EPERM;
409 if (!check_tracer(task))
410 goto out_unlock;
411
395 error = -EALREADY; 412 error = -EALREADY;
396 if (context->owner[qual] == current) 413 if (context->owner[qual] == current)
397 goto out_unlock; 414 goto out_unlock;
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 28b597ef9ca1..74defe21ba42 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1157,6 +1157,9 @@ ENTRY(mcount)
1157END(mcount) 1157END(mcount)
1158 1158
1159ENTRY(ftrace_caller) 1159ENTRY(ftrace_caller)
1160 cmpl $0, function_trace_stop
1161 jne ftrace_stub
1162
1160 pushl %eax 1163 pushl %eax
1161 pushl %ecx 1164 pushl %ecx
1162 pushl %edx 1165 pushl %edx
@@ -1180,8 +1183,15 @@ END(ftrace_caller)
1180#else /* ! CONFIG_DYNAMIC_FTRACE */ 1183#else /* ! CONFIG_DYNAMIC_FTRACE */
1181 1184
1182ENTRY(mcount) 1185ENTRY(mcount)
1186 cmpl $0, function_trace_stop
1187 jne ftrace_stub
1188
1183 cmpl $ftrace_stub, ftrace_trace_function 1189 cmpl $ftrace_stub, ftrace_trace_function
1184 jnz trace 1190 jnz trace
1191#ifdef CONFIG_FUNCTION_RET_TRACER
1192 cmpl $ftrace_stub, ftrace_function_return
1193 jnz ftrace_return_caller
1194#endif
1185.globl ftrace_stub 1195.globl ftrace_stub
1186ftrace_stub: 1196ftrace_stub:
1187 ret 1197 ret
@@ -1200,12 +1210,42 @@ trace:
1200 popl %edx 1210 popl %edx
1201 popl %ecx 1211 popl %ecx
1202 popl %eax 1212 popl %eax
1203
1204 jmp ftrace_stub 1213 jmp ftrace_stub
1205END(mcount) 1214END(mcount)
1206#endif /* CONFIG_DYNAMIC_FTRACE */ 1215#endif /* CONFIG_DYNAMIC_FTRACE */
1207#endif /* CONFIG_FUNCTION_TRACER */ 1216#endif /* CONFIG_FUNCTION_TRACER */
1208 1217
1218#ifdef CONFIG_FUNCTION_RET_TRACER
1219ENTRY(ftrace_return_caller)
1220 cmpl $0, function_trace_stop
1221 jne ftrace_stub
1222
1223 pushl %eax
1224 pushl %ecx
1225 pushl %edx
1226 movl 0xc(%esp), %edx
1227 lea 0x4(%ebp), %eax
1228 call prepare_ftrace_return
1229 popl %edx
1230 popl %ecx
1231 popl %eax
1232 ret
1233END(ftrace_return_caller)
1234
1235.globl return_to_handler
1236return_to_handler:
1237 pushl $0
1238 pushl %eax
1239 pushl %ecx
1240 pushl %edx
1241 call ftrace_return_to_handler
1242 movl %eax, 0xc(%esp)
1243 popl %edx
1244 popl %ecx
1245 popl %eax
1246 ret
1247#endif
1248
1209.section .rodata,"a" 1249.section .rodata,"a"
1210#include "syscall_table_32.S" 1250#include "syscall_table_32.S"
1211 1251
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index b86f332c96a6..08aa6b10933c 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -68,6 +68,8 @@ ENTRY(mcount)
68END(mcount) 68END(mcount)
69 69
70ENTRY(ftrace_caller) 70ENTRY(ftrace_caller)
71 cmpl $0, function_trace_stop
72 jne ftrace_stub
71 73
72 /* taken from glibc */ 74 /* taken from glibc */
73 subq $0x38, %rsp 75 subq $0x38, %rsp
@@ -103,6 +105,9 @@ END(ftrace_caller)
103 105
104#else /* ! CONFIG_DYNAMIC_FTRACE */ 106#else /* ! CONFIG_DYNAMIC_FTRACE */
105ENTRY(mcount) 107ENTRY(mcount)
108 cmpl $0, function_trace_stop
109 jne ftrace_stub
110
106 cmpq $ftrace_stub, ftrace_trace_function 111 cmpq $ftrace_stub, ftrace_trace_function
107 jnz trace 112 jnz trace
108.globl ftrace_stub 113.globl ftrace_stub
diff --git a/arch/x86/kernel/es7000_32.c b/arch/x86/kernel/es7000_32.c
index f454c78fcef6..0aa2c443d600 100644
--- a/arch/x86/kernel/es7000_32.c
+++ b/arch/x86/kernel/es7000_32.c
@@ -250,31 +250,24 @@ int __init find_unisys_acpi_oem_table(unsigned long *oem_addr)
250{ 250{
251 struct acpi_table_header *header = NULL; 251 struct acpi_table_header *header = NULL;
252 int i = 0; 252 int i = 0;
253 acpi_size tbl_size;
254 253
255 while (ACPI_SUCCESS(acpi_get_table_with_size("OEM1", i++, &header, &tbl_size))) { 254 while (ACPI_SUCCESS(acpi_get_table("OEM1", i++, &header))) {
256 if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) { 255 if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) {
257 struct oem_table *t = (struct oem_table *)header; 256 struct oem_table *t = (struct oem_table *)header;
258 257
259 oem_addrX = t->OEMTableAddr; 258 oem_addrX = t->OEMTableAddr;
260 oem_size = t->OEMTableSize; 259 oem_size = t->OEMTableSize;
261 early_acpi_os_unmap_memory(header, tbl_size);
262 260
263 *oem_addr = (unsigned long)__acpi_map_table(oem_addrX, 261 *oem_addr = (unsigned long)__acpi_map_table(oem_addrX,
264 oem_size); 262 oem_size);
265 return 0; 263 return 0;
266 } 264 }
267 early_acpi_os_unmap_memory(header, tbl_size);
268 } 265 }
269 return -1; 266 return -1;
270} 267}
271 268
272void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr) 269void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
273{ 270{
274 if (!oem_addr)
275 return;
276
277 __acpi_unmap_table((char *)oem_addr, oem_size);
278} 271}
279#endif 272#endif
280 273
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 50ea0ac8c9bf..356bb1eb6e9a 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -14,14 +14,17 @@
14#include <linux/uaccess.h> 14#include <linux/uaccess.h>
15#include <linux/ftrace.h> 15#include <linux/ftrace.h>
16#include <linux/percpu.h> 16#include <linux/percpu.h>
17#include <linux/sched.h>
17#include <linux/init.h> 18#include <linux/init.h>
18#include <linux/list.h> 19#include <linux/list.h>
19 20
20#include <asm/ftrace.h> 21#include <asm/ftrace.h>
22#include <linux/ftrace.h>
21#include <asm/nops.h> 23#include <asm/nops.h>
24#include <asm/nmi.h>
22 25
23 26
24static unsigned char ftrace_nop[MCOUNT_INSN_SIZE]; 27#ifdef CONFIG_DYNAMIC_FTRACE
25 28
26union ftrace_code_union { 29union ftrace_code_union {
27 char code[MCOUNT_INSN_SIZE]; 30 char code[MCOUNT_INSN_SIZE];
@@ -31,18 +34,12 @@ union ftrace_code_union {
31 } __attribute__((packed)); 34 } __attribute__((packed));
32}; 35};
33 36
34
35static int ftrace_calc_offset(long ip, long addr) 37static int ftrace_calc_offset(long ip, long addr)
36{ 38{
37 return (int)(addr - ip); 39 return (int)(addr - ip);
38} 40}
39 41
40unsigned char *ftrace_nop_replace(void) 42static unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
41{
42 return ftrace_nop;
43}
44
45unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
46{ 43{
47 static union ftrace_code_union calc; 44 static union ftrace_code_union calc;
48 45
@@ -56,7 +53,143 @@ unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
56 return calc.code; 53 return calc.code;
57} 54}
58 55
59int 56/*
57 * Modifying code must take extra care. On an SMP machine, if
58 * the code being modified is also being executed on another CPU
59 * that CPU will have undefined results and possibly take a GPF.
60 * We use kstop_machine to stop other CPUS from exectuing code.
61 * But this does not stop NMIs from happening. We still need
62 * to protect against that. We separate out the modification of
63 * the code to take care of this.
64 *
65 * Two buffers are added: An IP buffer and a "code" buffer.
66 *
67 * 1) Put the instruction pointer into the IP buffer
68 * and the new code into the "code" buffer.
69 * 2) Set a flag that says we are modifying code
70 * 3) Wait for any running NMIs to finish.
71 * 4) Write the code
72 * 5) clear the flag.
73 * 6) Wait for any running NMIs to finish.
74 *
75 * If an NMI is executed, the first thing it does is to call
76 * "ftrace_nmi_enter". This will check if the flag is set to write
77 * and if it is, it will write what is in the IP and "code" buffers.
78 *
79 * The trick is, it does not matter if everyone is writing the same
80 * content to the code location. Also, if a CPU is executing code
81 * it is OK to write to that code location if the contents being written
82 * are the same as what exists.
83 */
84
85static atomic_t in_nmi = ATOMIC_INIT(0);
86static int mod_code_status; /* holds return value of text write */
87static int mod_code_write; /* set when NMI should do the write */
88static void *mod_code_ip; /* holds the IP to write to */
89static void *mod_code_newcode; /* holds the text to write to the IP */
90
91static unsigned nmi_wait_count;
92static atomic_t nmi_update_count = ATOMIC_INIT(0);
93
94int ftrace_arch_read_dyn_info(char *buf, int size)
95{
96 int r;
97
98 r = snprintf(buf, size, "%u %u",
99 nmi_wait_count,
100 atomic_read(&nmi_update_count));
101 return r;
102}
103
104static void ftrace_mod_code(void)
105{
106 /*
107 * Yes, more than one CPU process can be writing to mod_code_status.
108 * (and the code itself)
109 * But if one were to fail, then they all should, and if one were
110 * to succeed, then they all should.
111 */
112 mod_code_status = probe_kernel_write(mod_code_ip, mod_code_newcode,
113 MCOUNT_INSN_SIZE);
114
115}
116
117void ftrace_nmi_enter(void)
118{
119 atomic_inc(&in_nmi);
120 /* Must have in_nmi seen before reading write flag */
121 smp_mb();
122 if (mod_code_write) {
123 ftrace_mod_code();
124 atomic_inc(&nmi_update_count);
125 }
126}
127
128void ftrace_nmi_exit(void)
129{
130 /* Finish all executions before clearing in_nmi */
131 smp_wmb();
132 atomic_dec(&in_nmi);
133}
134
135static void wait_for_nmi(void)
136{
137 int waited = 0;
138
139 while (atomic_read(&in_nmi)) {
140 waited = 1;
141 cpu_relax();
142 }
143
144 if (waited)
145 nmi_wait_count++;
146}
147
148static int
149do_ftrace_mod_code(unsigned long ip, void *new_code)
150{
151 mod_code_ip = (void *)ip;
152 mod_code_newcode = new_code;
153
154 /* The buffers need to be visible before we let NMIs write them */
155 smp_wmb();
156
157 mod_code_write = 1;
158
159 /* Make sure write bit is visible before we wait on NMIs */
160 smp_mb();
161
162 wait_for_nmi();
163
164 /* Make sure all running NMIs have finished before we write the code */
165 smp_mb();
166
167 ftrace_mod_code();
168
169 /* Make sure the write happens before clearing the bit */
170 smp_wmb();
171
172 mod_code_write = 0;
173
174 /* make sure NMIs see the cleared bit */
175 smp_mb();
176
177 wait_for_nmi();
178
179 return mod_code_status;
180}
181
182
183
184
185static unsigned char ftrace_nop[MCOUNT_INSN_SIZE];
186
187static unsigned char *ftrace_nop_replace(void)
188{
189 return ftrace_nop;
190}
191
192static int
60ftrace_modify_code(unsigned long ip, unsigned char *old_code, 193ftrace_modify_code(unsigned long ip, unsigned char *old_code,
61 unsigned char *new_code) 194 unsigned char *new_code)
62{ 195{
@@ -81,7 +214,7 @@ ftrace_modify_code(unsigned long ip, unsigned char *old_code,
81 return -EINVAL; 214 return -EINVAL;
82 215
83 /* replace the text with the new text */ 216 /* replace the text with the new text */
84 if (probe_kernel_write((void *)ip, new_code, MCOUNT_INSN_SIZE)) 217 if (do_ftrace_mod_code(ip, new_code))
85 return -EPERM; 218 return -EPERM;
86 219
87 sync_core(); 220 sync_core();
@@ -89,6 +222,29 @@ ftrace_modify_code(unsigned long ip, unsigned char *old_code,
89 return 0; 222 return 0;
90} 223}
91 224
225int ftrace_make_nop(struct module *mod,
226 struct dyn_ftrace *rec, unsigned long addr)
227{
228 unsigned char *new, *old;
229 unsigned long ip = rec->ip;
230
231 old = ftrace_call_replace(ip, addr);
232 new = ftrace_nop_replace();
233
234 return ftrace_modify_code(rec->ip, old, new);
235}
236
237int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
238{
239 unsigned char *new, *old;
240 unsigned long ip = rec->ip;
241
242 old = ftrace_nop_replace();
243 new = ftrace_call_replace(ip, addr);
244
245 return ftrace_modify_code(rec->ip, old, new);
246}
247
92int ftrace_update_ftrace_func(ftrace_func_t func) 248int ftrace_update_ftrace_func(ftrace_func_t func)
93{ 249{
94 unsigned long ip = (unsigned long)(&ftrace_call); 250 unsigned long ip = (unsigned long)(&ftrace_call);
@@ -165,3 +321,138 @@ int __init ftrace_dyn_arch_init(void *data)
165 321
166 return 0; 322 return 0;
167} 323}
324#endif
325
326#ifdef CONFIG_FUNCTION_RET_TRACER
327
328#ifndef CONFIG_DYNAMIC_FTRACE
329
330/*
331 * These functions are picked from those used on
332 * this page for dynamic ftrace. They have been
333 * simplified to ignore all traces in NMI context.
334 */
335static atomic_t in_nmi;
336
337void ftrace_nmi_enter(void)
338{
339 atomic_inc(&in_nmi);
340}
341
342void ftrace_nmi_exit(void)
343{
344 atomic_dec(&in_nmi);
345}
346#endif /* !CONFIG_DYNAMIC_FTRACE */
347
348/* Add a function return address to the trace stack on thread info.*/
349static int push_return_trace(unsigned long ret, unsigned long long time,
350 unsigned long func)
351{
352 int index;
353 struct thread_info *ti = current_thread_info();
354
355 /* The return trace stack is full */
356 if (ti->curr_ret_stack == FTRACE_RET_STACK_SIZE - 1) {
357 atomic_inc(&ti->trace_overrun);
358 return -EBUSY;
359 }
360
361 index = ++ti->curr_ret_stack;
362 barrier();
363 ti->ret_stack[index].ret = ret;
364 ti->ret_stack[index].func = func;
365 ti->ret_stack[index].calltime = time;
366
367 return 0;
368}
369
370/* Retrieve a function return address to the trace stack on thread info.*/
371static void pop_return_trace(unsigned long *ret, unsigned long long *time,
372 unsigned long *func, unsigned long *overrun)
373{
374 int index;
375
376 struct thread_info *ti = current_thread_info();
377 index = ti->curr_ret_stack;
378 *ret = ti->ret_stack[index].ret;
379 *func = ti->ret_stack[index].func;
380 *time = ti->ret_stack[index].calltime;
381 *overrun = atomic_read(&ti->trace_overrun);
382 ti->curr_ret_stack--;
383}
384
385/*
386 * Send the trace to the ring-buffer.
387 * @return the original return address.
388 */
389unsigned long ftrace_return_to_handler(void)
390{
391 struct ftrace_retfunc trace;
392 pop_return_trace(&trace.ret, &trace.calltime, &trace.func,
393 &trace.overrun);
394 trace.rettime = cpu_clock(raw_smp_processor_id());
395 ftrace_function_return(&trace);
396
397 return trace.ret;
398}
399
400/*
401 * Hook the return address and push it in the stack of return addrs
402 * in current thread info.
403 */
404void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
405{
406 unsigned long old;
407 unsigned long long calltime;
408 int faulted;
409 unsigned long return_hooker = (unsigned long)
410 &return_to_handler;
411
412 /* Nmi's are currently unsupported */
413 if (atomic_read(&in_nmi))
414 return;
415
416 /*
417 * Protect against fault, even if it shouldn't
418 * happen. This tool is too much intrusive to
419 * ignore such a protection.
420 */
421 asm volatile(
422 "1: movl (%[parent_old]), %[old]\n"
423 "2: movl %[return_hooker], (%[parent_replaced])\n"
424 " movl $0, %[faulted]\n"
425
426 ".section .fixup, \"ax\"\n"
427 "3: movl $1, %[faulted]\n"
428 ".previous\n"
429
430 ".section __ex_table, \"a\"\n"
431 " .long 1b, 3b\n"
432 " .long 2b, 3b\n"
433 ".previous\n"
434
435 : [parent_replaced] "=r" (parent), [old] "=r" (old),
436 [faulted] "=r" (faulted)
437 : [parent_old] "0" (parent), [return_hooker] "r" (return_hooker)
438 : "memory"
439 );
440
441 if (WARN_ON(faulted)) {
442 unregister_ftrace_return();
443 return;
444 }
445
446 if (WARN_ON(!__kernel_text_address(old))) {
447 unregister_ftrace_return();
448 *parent = old;
449 return;
450 }
451
452 calltime = cpu_clock(raw_smp_processor_id());
453
454 if (push_return_trace(old, calltime, self_addr) == -EBUSY)
455 *parent = old;
456}
457
458#endif /* CONFIG_FUNCTION_RET_TRACER */
diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 7a3f2028e2eb..c9513e1ff28d 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -1140,6 +1140,20 @@ static void __clear_irq_vector(int irq)
1140 1140
1141 cfg->vector = 0; 1141 cfg->vector = 0;
1142 cpus_clear(cfg->domain); 1142 cpus_clear(cfg->domain);
1143
1144 if (likely(!cfg->move_in_progress))
1145 return;
1146 cpus_and(mask, cfg->old_domain, cpu_online_map);
1147 for_each_cpu_mask_nr(cpu, mask) {
1148 for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS;
1149 vector++) {
1150 if (per_cpu(vector_irq, cpu)[vector] != irq)
1151 continue;
1152 per_cpu(vector_irq, cpu)[vector] = -1;
1153 break;
1154 }
1155 }
1156 cfg->move_in_progress = 0;
1143} 1157}
1144 1158
1145void __setup_vector_irq(int cpu) 1159void __setup_vector_irq(int cpu)
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 724adfc63cb9..cc5a2545dd41 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -169,6 +169,15 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
169 DMI_MATCH(DMI_BOARD_NAME, "0KW626"), 169 DMI_MATCH(DMI_BOARD_NAME, "0KW626"),
170 }, 170 },
171 }, 171 },
172 { /* Handle problems with rebooting on Dell Optiplex 330 with 0KP561 */
173 .callback = set_bios_reboot,
174 .ident = "Dell OptiPlex 330",
175 .matches = {
176 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
177 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 330"),
178 DMI_MATCH(DMI_BOARD_NAME, "0KP561"),
179 },
180 },
172 { /* Handle problems with rebooting on Dell 2400's */ 181 { /* Handle problems with rebooting on Dell 2400's */
173 .callback = set_bios_reboot, 182 .callback = set_bios_reboot,
174 .ident = "Dell PowerEdge 2400", 183 .ident = "Dell PowerEdge 2400",
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 0fa6790c1dd3..9d5674f7b6cc 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -764,7 +764,7 @@ static struct dmi_system_id __initdata bad_bios_dmi_table[] = {
764 .callback = dmi_low_memory_corruption, 764 .callback = dmi_low_memory_corruption,
765 .ident = "Phoenix BIOS", 765 .ident = "Phoenix BIOS",
766 .matches = { 766 .matches = {
767 DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"), 767 DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies"),
768 }, 768 },
769 }, 769 },
770#endif 770#endif
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 9ffb01c31c40..1c0dfbca87c1 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -46,7 +46,9 @@ static __cpuinit void check_tsc_warp(void)
46 cycles_t start, now, prev, end; 46 cycles_t start, now, prev, end;
47 int i; 47 int i;
48 48
49 rdtsc_barrier();
49 start = get_cycles(); 50 start = get_cycles();
51 rdtsc_barrier();
50 /* 52 /*
51 * The measurement runs for 20 msecs: 53 * The measurement runs for 20 msecs:
52 */ 54 */
@@ -61,7 +63,9 @@ static __cpuinit void check_tsc_warp(void)
61 */ 63 */
62 __raw_spin_lock(&sync_lock); 64 __raw_spin_lock(&sync_lock);
63 prev = last_tsc; 65 prev = last_tsc;
66 rdtsc_barrier();
64 now = get_cycles(); 67 now = get_cycles();
68 rdtsc_barrier();
65 last_tsc = now; 69 last_tsc = now;
66 __raw_spin_unlock(&sync_lock); 70 __raw_spin_unlock(&sync_lock);
67 71
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 0b8b6690a86d..6f3d3d4cd973 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -17,6 +17,9 @@
17 * want per guest time just set the kernel.vsyscall64 sysctl to 0. 17 * want per guest time just set the kernel.vsyscall64 sysctl to 0.
18 */ 18 */
19 19
20/* Disable profiling for userspace code: */
21#define DISABLE_BRANCH_PROFILING
22
20#include <linux/time.h> 23#include <linux/time.h>
21#include <linux/init.h> 24#include <linux/init.h>
22#include <linux/kernel.h> 25#include <linux/kernel.h>
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 0e331652681e..52145007bd7e 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -7,6 +7,7 @@
7 * This file provides all the same external entries as smp.c but uses 7 * This file provides all the same external entries as smp.c but uses
8 * the voyager hal to provide the functionality 8 * the voyager hal to provide the functionality
9 */ 9 */
10#include <linux/cpu.h>
10#include <linux/module.h> 11#include <linux/module.h>
11#include <linux/mm.h> 12#include <linux/mm.h>
12#include <linux/kernel_stat.h> 13#include <linux/kernel_stat.h>
@@ -1790,6 +1791,17 @@ void __init smp_setup_processor_id(void)
1790 x86_write_percpu(cpu_number, hard_smp_processor_id()); 1791 x86_write_percpu(cpu_number, hard_smp_processor_id());
1791} 1792}
1792 1793
1794static void voyager_send_call_func(cpumask_t callmask)
1795{
1796 __u32 mask = cpus_addr(callmask)[0] & ~(1 << smp_processor_id());
1797 send_CPI(mask, VIC_CALL_FUNCTION_CPI);
1798}
1799
1800static void voyager_send_call_func_single(int cpu)
1801{
1802 send_CPI(1 << cpu, VIC_CALL_FUNCTION_SINGLE_CPI);
1803}
1804
1793struct smp_ops smp_ops = { 1805struct smp_ops smp_ops = {
1794 .smp_prepare_boot_cpu = voyager_smp_prepare_boot_cpu, 1806 .smp_prepare_boot_cpu = voyager_smp_prepare_boot_cpu,
1795 .smp_prepare_cpus = voyager_smp_prepare_cpus, 1807 .smp_prepare_cpus = voyager_smp_prepare_cpus,
@@ -1799,6 +1811,6 @@ struct smp_ops smp_ops = {
1799 .smp_send_stop = voyager_smp_send_stop, 1811 .smp_send_stop = voyager_smp_send_stop,
1800 .smp_send_reschedule = voyager_smp_send_reschedule, 1812 .smp_send_reschedule = voyager_smp_send_reschedule,
1801 1813
1802 .send_call_func_ipi = native_send_call_func_ipi, 1814 .send_call_func_ipi = voyager_send_call_func,
1803 .send_call_func_single_ipi = native_send_call_func_single_ipi, 1815 .send_call_func_single_ipi = voyager_send_call_func_single,
1804}; 1816};
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index fea4565ff576..d8cc96a2738f 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -8,9 +8,8 @@ obj-$(CONFIG_X86_PTDUMP) += dump_pagetables.o
8 8
9obj-$(CONFIG_HIGHMEM) += highmem_32.o 9obj-$(CONFIG_HIGHMEM) += highmem_32.o
10 10
11obj-$(CONFIG_MMIOTRACE_HOOKS) += kmmio.o
12obj-$(CONFIG_MMIOTRACE) += mmiotrace.o 11obj-$(CONFIG_MMIOTRACE) += mmiotrace.o
13mmiotrace-y := pf_in.o mmio-mod.o 12mmiotrace-y := kmmio.o pf_in.o mmio-mod.o
14obj-$(CONFIG_MMIOTRACE_TEST) += testmmiotrace.o 13obj-$(CONFIG_MMIOTRACE_TEST) += testmmiotrace.o
15 14
16obj-$(CONFIG_NUMA) += numa_$(BITS).o 15obj-$(CONFIG_NUMA) += numa_$(BITS).o
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 31e8730fa246..4152d3c3b138 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -53,7 +53,7 @@
53 53
54static inline int kmmio_fault(struct pt_regs *regs, unsigned long addr) 54static inline int kmmio_fault(struct pt_regs *regs, unsigned long addr)
55{ 55{
56#ifdef CONFIG_MMIOTRACE_HOOKS 56#ifdef CONFIG_MMIOTRACE
57 if (unlikely(is_kmmio_active())) 57 if (unlikely(is_kmmio_active()))
58 if (kmmio_handler(regs, addr) == 1) 58 if (kmmio_handler(regs, addr) == 1)
59 return -1; 59 return -1;
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 847c164725f4..8518c678d83f 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -222,6 +222,41 @@ static void __init remap_numa_kva(void)
222 } 222 }
223} 223}
224 224
225#ifdef CONFIG_HIBERNATION
226/**
227 * resume_map_numa_kva - add KVA mapping to the temporary page tables created
228 * during resume from hibernation
229 * @pgd_base - temporary resume page directory
230 */
231void resume_map_numa_kva(pgd_t *pgd_base)
232{
233 int node;
234
235 for_each_online_node(node) {
236 unsigned long start_va, start_pfn, size, pfn;
237
238 start_va = (unsigned long)node_remap_start_vaddr[node];
239 start_pfn = node_remap_start_pfn[node];
240 size = node_remap_size[node];
241
242 printk(KERN_DEBUG "%s: node %d\n", __FUNCTION__, node);
243
244 for (pfn = 0; pfn < size; pfn += PTRS_PER_PTE) {
245 unsigned long vaddr = start_va + (pfn << PAGE_SHIFT);
246 pgd_t *pgd = pgd_base + pgd_index(vaddr);
247 pud_t *pud = pud_offset(pgd, vaddr);
248 pmd_t *pmd = pmd_offset(pud, vaddr);
249
250 set_pmd(pmd, pfn_pmd(start_pfn + pfn,
251 PAGE_KERNEL_LARGE_EXEC));
252
253 printk(KERN_DEBUG "%s: %08lx -> pfn %08lx\n",
254 __FUNCTION__, vaddr, start_pfn + pfn);
255 }
256 }
257}
258#endif
259
225static unsigned long calculate_numa_remap_pages(void) 260static unsigned long calculate_numa_remap_pages(void)
226{ 261{
227 int nid; 262 int nid;
diff --git a/arch/x86/power/hibernate_32.c b/arch/x86/power/hibernate_32.c
index f2b6e3f11bfc..81197c62d5b3 100644
--- a/arch/x86/power/hibernate_32.c
+++ b/arch/x86/power/hibernate_32.c
@@ -12,6 +12,7 @@
12#include <asm/system.h> 12#include <asm/system.h>
13#include <asm/page.h> 13#include <asm/page.h>
14#include <asm/pgtable.h> 14#include <asm/pgtable.h>
15#include <asm/mmzone.h>
15 16
16/* Defined in hibernate_asm_32.S */ 17/* Defined in hibernate_asm_32.S */
17extern int restore_image(void); 18extern int restore_image(void);
@@ -127,6 +128,9 @@ static int resume_physical_mapping_init(pgd_t *pgd_base)
127 } 128 }
128 } 129 }
129 } 130 }
131
132 resume_map_numa_kva(pgd_base);
133
130 return 0; 134 return 0;
131} 135}
132 136
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index 1ef0f90813d6..d9d35824c56f 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -9,6 +9,9 @@
9 * Also alternative() doesn't work. 9 * Also alternative() doesn't work.
10 */ 10 */
11 11
12/* Disable profiling for userspace code: */
13#define DISABLE_BRANCH_PROFILING
14
12#include <linux/kernel.h> 15#include <linux/kernel.h>
13#include <linux/posix-timers.h> 16#include <linux/posix-timers.h>
14#include <linux/time.h> 17#include <linux/time.h>
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-13 22:38:21 -0500