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-rw-r--r--arch/x86/kernel/aperture_64.c3
-rw-r--r--arch/x86/kernel/cpu/cpufreq/e_powersaver.c8
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-smi.c39
-rw-r--r--arch/x86/kernel/cpu/mtrr/generic.c42
-rw-r--r--arch/x86/kernel/cpu/mtrr/main.c3
-rw-r--r--arch/x86/kernel/e820_32.c26
-rw-r--r--arch/x86/kernel/e820_64.c27
-rw-r--r--arch/x86/kernel/head_32.S2
-rw-r--r--arch/x86/kernel/i387.c10
-rw-r--r--arch/x86/kernel/io_delay.c8
-rw-r--r--arch/x86/kernel/mfgpt_32.c1
-rw-r--r--arch/x86/kernel/pci-dma_64.c5
-rw-r--r--arch/x86/kernel/ptrace.c19
-rw-r--r--arch/x86/kernel/quirks.c2
-rw-r--r--arch/x86/kernel/reboot.c24
-rw-r--r--arch/x86/kernel/setup64.c14
-rw-r--r--arch/x86/kernel/setup_32.c9
-rw-r--r--arch/x86/kernel/setup_64.c2
-rw-r--r--arch/x86/kernel/signal_32.c4
-rw-r--r--arch/x86/kernel/signal_64.c40
-rw-r--r--arch/x86/kernel/step.c4
21 files changed, 221 insertions, 71 deletions
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 608152a2a05..00df126169b 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -18,6 +18,7 @@
#include <linux/pci.h>
#include <linux/bitops.h>
#include <linux/ioport.h>
+#include <linux/suspend.h>
#include <asm/e820.h>
#include <asm/io.h>
#include <asm/gart.h>
@@ -76,6 +77,8 @@ static u32 __init allocate_aperture(void)
printk(KERN_INFO "Mapping aperture over %d KB of RAM @ %lx\n",
aper_size >> 10, __pa(p));
insert_aperture_resource((u32)__pa(p), aper_size);
+ register_nosave_region((u32)__pa(p) >> PAGE_SHIFT,
+ (u32)__pa(p+aper_size) >> PAGE_SHIFT);
return (u32)__pa(p);
}
diff --git a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
index 39f8cb18296..c2f930d8664 100644
--- a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
+++ b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
@@ -55,7 +55,6 @@ static int eps_set_state(struct eps_cpu_data *centaur,
{
struct cpufreq_freqs freqs;
u32 lo, hi;
- u8 current_multiplier, current_voltage;
int err = 0;
int i;
@@ -95,6 +94,10 @@ postchange:
rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
freqs.new = centaur->fsb * ((lo >> 8) & 0xff);
+#ifdef DEBUG
+ {
+ u8 current_multiplier, current_voltage;
+
/* Print voltage and multiplier */
rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
current_voltage = lo & 0xff;
@@ -103,7 +106,8 @@ postchange:
current_multiplier = (lo >> 8) & 0xff;
printk(KERN_INFO "eps: Current multiplier = %d\n",
current_multiplier);
-
+ }
+#endif
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
return err;
}
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
index f2b5a621d27..8a85c93bd62 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
@@ -63,7 +63,7 @@ static struct cpufreq_frequency_table speedstep_freqs[] = {
*/
static int speedstep_smi_ownership (void)
{
- u32 command, result, magic;
+ u32 command, result, magic, dummy;
u32 function = GET_SPEEDSTEP_OWNER;
unsigned char magic_data[] = "Copyright (c) 1999 Intel Corporation";
@@ -73,8 +73,11 @@ static int speedstep_smi_ownership (void)
dprintk("trying to obtain ownership with command %x at port %x\n", command, smi_port);
__asm__ __volatile__(
+ "push %%ebp\n"
"out %%al, (%%dx)\n"
- : "=D" (result)
+ "pop %%ebp\n"
+ : "=D" (result), "=a" (dummy), "=b" (dummy), "=c" (dummy), "=d" (dummy),
+ "=S" (dummy)
: "a" (command), "b" (function), "c" (0), "d" (smi_port),
"D" (0), "S" (magic)
: "memory"
@@ -96,7 +99,7 @@ static int speedstep_smi_ownership (void)
*/
static int speedstep_smi_get_freqs (unsigned int *low, unsigned int *high)
{
- u32 command, result = 0, edi, high_mhz, low_mhz;
+ u32 command, result = 0, edi, high_mhz, low_mhz, dummy;
u32 state=0;
u32 function = GET_SPEEDSTEP_FREQS;
@@ -109,10 +112,12 @@ static int speedstep_smi_get_freqs (unsigned int *low, unsigned int *high)
dprintk("trying to determine frequencies with command %x at port %x\n", command, smi_port);
- __asm__ __volatile__("movl $0, %%edi\n"
+ __asm__ __volatile__(
+ "push %%ebp\n"
"out %%al, (%%dx)\n"
- : "=a" (result), "=b" (high_mhz), "=c" (low_mhz), "=d" (state), "=D" (edi)
- : "a" (command), "b" (function), "c" (state), "d" (smi_port), "S" (0)
+ "pop %%ebp"
+ : "=a" (result), "=b" (high_mhz), "=c" (low_mhz), "=d" (state), "=D" (edi), "=S" (dummy)
+ : "a" (command), "b" (function), "c" (state), "d" (smi_port), "S" (0), "D" (0)
);
dprintk("result %x, low_freq %u, high_freq %u\n", result, low_mhz, high_mhz);
@@ -135,16 +140,18 @@ static int speedstep_smi_get_freqs (unsigned int *low, unsigned int *high)
static int speedstep_get_state (void)
{
u32 function=GET_SPEEDSTEP_STATE;
- u32 result, state, edi, command;
+ u32 result, state, edi, command, dummy;
command = (smi_sig & 0xffffff00) | (smi_cmd & 0xff);
dprintk("trying to determine current setting with command %x at port %x\n", command, smi_port);
- __asm__ __volatile__("movl $0, %%edi\n"
+ __asm__ __volatile__(
+ "push %%ebp\n"
"out %%al, (%%dx)\n"
- : "=a" (result), "=b" (state), "=D" (edi)
- : "a" (command), "b" (function), "c" (0), "d" (smi_port), "S" (0)
+ "pop %%ebp\n"
+ : "=a" (result), "=b" (state), "=D" (edi), "=c" (dummy), "=d" (dummy), "=S" (dummy)
+ : "a" (command), "b" (function), "c" (0), "d" (smi_port), "S" (0), "D" (0)
);
dprintk("state is %x, result is %x\n", state, result);
@@ -160,7 +167,7 @@ static int speedstep_get_state (void)
*/
static void speedstep_set_state (unsigned int state)
{
- unsigned int result = 0, command, new_state;
+ unsigned int result = 0, command, new_state, dummy;
unsigned long flags;
unsigned int function=SET_SPEEDSTEP_STATE;
unsigned int retry = 0;
@@ -182,10 +189,12 @@ static void speedstep_set_state (unsigned int state)
}
retry++;
__asm__ __volatile__(
- "movl $0, %%edi\n"
+ "push %%ebp\n"
"out %%al, (%%dx)\n"
- : "=b" (new_state), "=D" (result)
- : "a" (command), "b" (function), "c" (state), "d" (smi_port), "S" (0)
+ "pop %%ebp"
+ : "=b" (new_state), "=D" (result), "=c" (dummy), "=a" (dummy),
+ "=d" (dummy), "=S" (dummy)
+ : "a" (command), "b" (function), "c" (state), "d" (smi_port), "S" (0), "D" (0)
);
} while ((new_state != state) && (retry <= SMI_TRIES));
@@ -195,7 +204,7 @@ static void speedstep_set_state (unsigned int state)
if (new_state == state) {
dprintk("change to %u MHz succeeded after %u tries with result %u\n", (speedstep_freqs[new_state].frequency / 1000), retry, result);
} else {
- printk(KERN_ERR "cpufreq: change failed with new_state %u and result %u\n", new_state, result);
+ printk(KERN_ERR "cpufreq: change to state %u failed with new_state %u and result %u\n", state, new_state, result);
}
return;
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 103d61a59b1..3e18db4cefe 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -176,12 +176,13 @@ static inline void k8_enable_fixed_iorrs(void)
}
/**
- * Checks and updates an fixed-range MTRR if it differs from the value it
- * should have. If K8 extentions are wanted, update the K8 SYSCFG MSR also.
- * see AMD publication no. 24593, chapter 7.8.1, page 233 for more information
- * \param msr MSR address of the MTTR which should be checked and updated
- * \param changed pointer which indicates whether the MTRR needed to be changed
- * \param msrwords pointer to the MSR values which the MSR should have
+ * set_fixed_range - checks & updates a fixed-range MTRR if it differs from the value it should have
+ * @msr: MSR address of the MTTR which should be checked and updated
+ * @changed: pointer which indicates whether the MTRR needed to be changed
+ * @msrwords: pointer to the MSR values which the MSR should have
+ *
+ * If K8 extentions are wanted, update the K8 SYSCFG MSR also.
+ * See AMD publication no. 24593, chapter 7.8.1, page 233 for more information.
*/
static void set_fixed_range(int msr, bool *changed, unsigned int *msrwords)
{
@@ -199,12 +200,15 @@ static void set_fixed_range(int msr, bool *changed, unsigned int *msrwords)
}
}
+/**
+ * generic_get_free_region - Get a free MTRR.
+ * @base: The starting (base) address of the region.
+ * @size: The size (in bytes) of the region.
+ * @replace_reg: mtrr index to be replaced; set to invalid value if none.
+ *
+ * Returns: The index of the region on success, else negative on error.
+ */
int generic_get_free_region(unsigned long base, unsigned long size, int replace_reg)
-/* [SUMMARY] Get a free MTRR.
- <base> The starting (base) address of the region.
- <size> The size (in bytes) of the region.
- [RETURNS] The index of the region on success, else -1 on error.
-*/
{
int i, max;
mtrr_type ltype;
@@ -249,8 +253,8 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
}
/**
- * Checks and updates the fixed-range MTRRs if they differ from the saved set
- * \param frs pointer to fixed-range MTRR values, saved by get_fixed_ranges()
+ * set_fixed_ranges - checks & updates the fixed-range MTRRs if they differ from the saved set
+ * @frs: pointer to fixed-range MTRR values, saved by get_fixed_ranges()
*/
static int set_fixed_ranges(mtrr_type * frs)
{
@@ -294,13 +298,13 @@ static bool set_mtrr_var_ranges(unsigned int index, struct mtrr_var_range *vr)
static u32 deftype_lo, deftype_hi;
+/**
+ * set_mtrr_state - Set the MTRR state for this CPU.
+ *
+ * NOTE: The CPU must already be in a safe state for MTRR changes.
+ * RETURNS: 0 if no changes made, else a mask indicating what was changed.
+ */
static unsigned long set_mtrr_state(void)
-/* [SUMMARY] Set the MTRR state for this CPU.
- <state> The MTRR state information to read.
- <ctxt> Some relevant CPU context.
- [NOTE] The CPU must already be in a safe state for MTRR changes.
- [RETURNS] 0 if no changes made, else a mask indication what was changed.
-*/
{
unsigned int i;
unsigned long change_mask = 0;
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index be83336fddb..a6450b3ae75 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -711,7 +711,8 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
trim_size = end_pfn;
trim_size <<= PAGE_SHIFT;
trim_size -= trim_start;
- add_memory_region(trim_start, trim_size, E820_RESERVED);
+ update_memory_range(trim_start, trim_size, E820_RAM,
+ E820_RESERVED);
update_e820();
return 1;
}
diff --git a/arch/x86/kernel/e820_32.c b/arch/x86/kernel/e820_32.c
index 4e16ef4a265..80444c5c9b1 100644
--- a/arch/x86/kernel/e820_32.c
+++ b/arch/x86/kernel/e820_32.c
@@ -749,6 +749,32 @@ static int __init parse_memmap(char *arg)
return 0;
}
early_param("memmap", parse_memmap);
+void __init update_memory_range(u64 start, u64 size, unsigned old_type,
+ unsigned new_type)
+{
+ int i;
+
+ BUG_ON(old_type == new_type);
+
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+ u64 final_start, final_end;
+ if (ei->type != old_type)
+ continue;
+ /* totally covered? */
+ if (ei->addr >= start && ei->size <= size) {
+ ei->type = new_type;
+ continue;
+ }
+ /* partially covered */
+ final_start = max(start, ei->addr);
+ final_end = min(start + size, ei->addr + ei->size);
+ if (final_start >= final_end)
+ continue;
+ add_memory_region(final_start, final_end - final_start,
+ new_type);
+ }
+}
void __init update_e820(void)
{
u8 nr_map;
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index 9f65b4cc323..9be69712601 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -744,6 +744,33 @@ void __init finish_e820_parsing(void)
}
}
+void __init update_memory_range(u64 start, u64 size, unsigned old_type,
+ unsigned new_type)
+{
+ int i;
+
+ BUG_ON(old_type == new_type);
+
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+ u64 final_start, final_end;
+ if (ei->type != old_type)
+ continue;
+ /* totally covered? */
+ if (ei->addr >= start && ei->size <= size) {
+ ei->type = new_type;
+ continue;
+ }
+ /* partially covered */
+ final_start = max(start, ei->addr);
+ final_end = min(start + size, ei->addr + ei->size);
+ if (final_start >= final_end)
+ continue;
+ add_memory_region(final_start, final_end - final_start,
+ new_type);
+ }
+}
+
void __init update_e820(void)
{
u8 nr_map;
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index fd8ca53943a..74d87ea85b5 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -657,7 +657,7 @@ int_msg:
.asciz "Unknown interrupt or fault at EIP %p %p %p\n"
fault_msg:
- .ascii \
+ .asciz \
/* fault info: */ "BUG: Int %d: CR2 %p\n" \
/* pusha regs: */ " EDI %p ESI %p EBP %p ESP %p\n" \
" EBX %p EDX %p ECX %p EAX %p\n" \
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index 763dfc40723..d2e39e69aaf 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -132,7 +132,7 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset,
if (!cpu_has_fxsr)
return -ENODEV;
- unlazy_fpu(target);
+ init_fpu(target);
return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
&target->thread.i387.fxsave, 0, -1);
@@ -147,7 +147,7 @@ int xfpregs_set(struct task_struct *target, const struct user_regset *regset,
if (!cpu_has_fxsr)
return -ENODEV;
- unlazy_fpu(target);
+ init_fpu(target);
set_stopped_child_used_math(target);
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
@@ -261,7 +261,7 @@ static void convert_from_fxsr(struct user_i387_ia32_struct *env,
}
#else
env->fip = fxsave->fip;
- env->fcs = fxsave->fcs;
+ env->fcs = (u16) fxsave->fcs | ((u32) fxsave->fop << 16);
env->foo = fxsave->foo;
env->fos = fxsave->fos;
#endif
@@ -307,7 +307,7 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset,
if (!HAVE_HWFP)
return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
- unlazy_fpu(target);
+ init_fpu(target);
if (!cpu_has_fxsr)
return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
@@ -332,7 +332,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
if (!HAVE_HWFP)
return fpregs_soft_set(target, regset, pos, count, kbuf, ubuf);
- unlazy_fpu(target);
+ init_fpu(target);
set_stopped_child_used_math(target);
if (!cpu_has_fxsr)
diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
index c706a306155..5921e5f0a64 100644
--- a/arch/x86/kernel/io_delay.c
+++ b/arch/x86/kernel/io_delay.c
@@ -78,6 +78,14 @@ static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
},
{
.callback = dmi_io_delay_0xed_port,
+ .ident = "HP Pavilion dv6000",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Quanta"),
+ DMI_MATCH(DMI_BOARD_NAME, "30B8")
+ }
+ },
+ {
+ .callback = dmi_io_delay_0xed_port,
.ident = "HP Pavilion tx1000",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Quanta"),
diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c
index 027fc067b39..b402c0f3f19 100644
--- a/arch/x86/kernel/mfgpt_32.c
+++ b/arch/x86/kernel/mfgpt_32.c
@@ -30,6 +30,7 @@
#include <linux/kernel.h>
#include <linux/interrupt.h>
+#include <linux/module.h>
#include <asm/geode.h>
static struct mfgpt_timer_t {
diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c
index a82473d192a..375cb2bc45b 100644
--- a/arch/x86/kernel/pci-dma_64.c
+++ b/arch/x86/kernel/pci-dma_64.c
@@ -53,11 +53,6 @@ dma_alloc_pages(struct device *dev, gfp_t gfp, unsigned order)
int node;
node = dev_to_node(dev);
- if (node == -1)
- node = numa_node_id();
-
- if (node < first_node(node_online_map))
- node = first_node(node_online_map);
page = alloc_pages_node(node, gfp, order);
return page ? page_address(page) : NULL;
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index f41fdc98efb..d5904eef1d3 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -323,6 +323,16 @@ static int putreg(struct task_struct *child,
return set_flags(child, value);
#ifdef CONFIG_X86_64
+ /*
+ * Orig_ax is really just a flag with small positive and
+ * negative values, so make sure to always sign-extend it
+ * from 32 bits so that it works correctly regardless of
+ * whether we come from a 32-bit environment or not.
+ */
+ case offsetof(struct user_regs_struct, orig_ax):
+ value = (long) (s32) value;
+ break;
+
case offsetof(struct user_regs_struct,fs_base):
if (value >= TASK_SIZE_OF(child))
return -EIO;
@@ -1045,10 +1055,17 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 value)
R32(esi, si);
R32(ebp, bp);
R32(eax, ax);
- R32(orig_eax, orig_ax);
R32(eip, ip);
R32(esp, sp);
+ case offsetof(struct user32, regs.orig_eax):
+ /*
+ * Sign-extend the value so that orig_eax = -1
+ * causes (long)orig_ax < 0 tests to fire correctly.
+ */
+ regs->orig_ax = (long) (s32) value;
+ break;
+
case offsetof(struct user32, regs.eflags):
return set_flags(child, value);
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index c47208fc593..d89a648fe71 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -363,6 +363,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0051,
nvidia_force_enable_hpet);
/* LPC bridges */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0260,
+ nvidia_force_enable_hpet);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0360,
nvidia_force_enable_hpet);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0361,
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 7fd6ac43e4a..484c4a80d38 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -152,6 +152,24 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
DMI_MATCH(DMI_BOARD_NAME, "0WF810"),
},
},
+ { /* Handle problems with rebooting on Dell Optiplex 745's DFF*/
+ .callback = set_bios_reboot,
+ .ident = "Dell OptiPlex 745",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
+ DMI_MATCH(DMI_BOARD_NAME, "0MM599"),
+ },
+ },
+ { /* Handle problems with rebooting on Dell Optiplex 745 with 0KW626 */
+ .callback = set_bios_reboot,
+ .ident = "Dell OptiPlex 745",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
+ DMI_MATCH(DMI_BOARD_NAME, "0KW626"),
+ },
+ },
{ /* Handle problems with rebooting on Dell 2400's */
.callback = set_bios_reboot,
.ident = "Dell PowerEdge 2400",
@@ -326,6 +344,10 @@ static inline void kb_wait(void)
}
}
+void __attribute__((weak)) mach_reboot_fixups(void)
+{
+}
+
static void native_machine_emergency_restart(void)
{
int i;
@@ -337,6 +359,8 @@ static void native_machine_emergency_restart(void)
/* Could also try the reset bit in the Hammer NB */
switch (reboot_type) {
case BOOT_KBD:
+ mach_reboot_fixups(); /* for board specific fixups */
+
for (i = 0; i < 10; i++) {
kb_wait();
udelay(50);
diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index 309366f8f60..e24c4567709 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -142,14 +142,16 @@ void __init setup_per_cpu_areas(void)
printk(KERN_INFO "PERCPU: Allocating %lu bytes of per cpu data\n", size);
for_each_cpu_mask (i, cpu_possible_map) {
char *ptr;
+#ifndef CONFIG_NEED_MULTIPLE_NODES
+ ptr = alloc_bootmem_pages(size);
+#else
+ int node = early_cpu_to_node(i);
- if (!NODE_DATA(early_cpu_to_node(i))) {
- printk("cpu with no node %d, num_online_nodes %d\n",
- i, num_online_nodes());
+ if (!node_online(node) || !NODE_DATA(node))
ptr = alloc_bootmem_pages(size);
- } else {
- ptr = alloc_bootmem_pages_node(NODE_DATA(early_cpu_to_node(i)), size);
- }
+ else
+ ptr = alloc_bootmem_pages_node(NODE_DATA(node), size);
+#endif
if (!ptr)
panic("Cannot allocate cpu data for CPU %d\n", i);
cpu_pda(i)->data_offset = ptr - __per_cpu_start;
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index a1d7071a51c..2b3e5d45176 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -406,8 +406,6 @@ static unsigned long __init setup_memory(void)
*/
min_low_pfn = PFN_UP(init_pg_tables_end);
- find_max_pfn();
-
max_low_pfn = find_max_low_pfn();
#ifdef CONFIG_HIGHMEM
@@ -764,12 +762,13 @@ void __init setup_arch(char **cmdline_p)
if (efi_enabled)
efi_init();
- max_low_pfn = setup_memory();
-
/* update e820 for memory not covered by WB MTRRs */
+ find_max_pfn();
mtrr_bp_init();
if (mtrr_trim_uncached_memory(max_pfn))
- max_low_pfn = setup_memory();
+ find_max_pfn();
+
+ max_low_pfn = setup_memory();
#ifdef CONFIG_VMI
/*
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 7637dc91c79..f4f7ecfb898 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -801,7 +801,7 @@ static void __cpuinit srat_detect_node(void)
/* Don't do the funky fallback heuristics the AMD version employs
for now. */
node = apicid_to_node[apicid];
- if (node == NUMA_NO_NODE)
+ if (node == NUMA_NO_NODE || !node_online(node))
node = first_node(node_online_map);
numa_set_node(cpu, node);
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index caee1f002fe..0157a6f0f41 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -407,7 +407,7 @@ static int setup_frame(int sig, struct k_sigaction *ka,
* The tracer may want to single-step inside the
* handler too.
*/
- regs->flags &= ~TF_MASK;
+ regs->flags &= ~(TF_MASK | X86_EFLAGS_DF);
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
@@ -500,7 +500,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
* The tracer may want to single-step inside the
* handler too.
*/
- regs->flags &= ~TF_MASK;
+ regs->flags &= ~(TF_MASK | X86_EFLAGS_DF);
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 7347bb14e30..1c83e5124c6 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -295,7 +295,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
see include/asm-x86_64/uaccess.h for details. */
set_fs(USER_DS);
- regs->flags &= ~X86_EFLAGS_TF;
+ regs->flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_DF);
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
#ifdef DEBUG_SIG
@@ -311,6 +311,35 @@ give_sigsegv:
}
/*
+ * Return -1L or the syscall number that @regs is executing.
+ */
+static long current_syscall(struct pt_regs *regs)
+{
+ /*
+ * We always sign-extend a -1 value being set here,
+ * so this is always either -1L or a syscall number.
+ */
+ return regs->orig_ax;
+}
+
+/*
+ * Return a value that is -EFOO if the system call in @regs->orig_ax
+ * returned an error. This only works for @regs from @current.
+ */
+static long current_syscall_ret(struct pt_regs *regs)
+{
+#ifdef CONFIG_IA32_EMULATION
+ if (test_thread_flag(TIF_IA32))
+ /*
+ * Sign-extend the value so (int)-EFOO becomes (long)-EFOO
+ * and will match correctly in comparisons.
+ */
+ return (int) regs->ax;
+#endif
+ return regs->ax;
+}
+
+/*
* OK, we're invoking a handler
*/
@@ -327,9 +356,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
#endif
/* Are we from a system call? */
- if ((long)regs->orig_ax >= 0) {
+ if (current_syscall(regs) >= 0) {
/* If so, check system call restarting.. */
- switch (regs->ax) {
+ switch (current_syscall_ret(regs)) {
case -ERESTART_RESTARTBLOCK:
case -ERESTARTNOHAND:
regs->ax = -EINTR;
@@ -426,10 +455,9 @@ static void do_signal(struct pt_regs *regs)
}
/* Did we come from a system call? */
- if ((long)regs->orig_ax >= 0) {
+ if (current_syscall(regs) >= 0) {
/* Restart the system call - no handlers present */
- long res = regs->ax;
- switch (res) {
+ switch (current_syscall_ret(regs)) {
case -ERESTARTNOHAND:
case -ERESTARTSYS:
case -ERESTARTNOINTR:
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 2ef1a5f8d67..9d406cdc847 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -166,7 +166,7 @@ static void enable_step(struct task_struct *child, bool block)
child->thread.debugctlmsr | DEBUGCTLMSR_BTF);
} else {
write_debugctlmsr(child,
- child->thread.debugctlmsr & ~TIF_DEBUGCTLMSR);
+ child->thread.debugctlmsr & ~DEBUGCTLMSR_BTF);
if (!child->thread.debugctlmsr)
clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
@@ -189,7 +189,7 @@ void user_disable_single_step(struct task_struct *child)
* Make sure block stepping (BTF) is disabled.
*/
write_debugctlmsr(child,
- child->thread.debugctlmsr & ~TIF_DEBUGCTLMSR);
+ child->thread.debugctlmsr & ~DEBUGCTLMSR_BTF);
if (!child->thread.debugctlmsr)
clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-13 09:08:10 +0000