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-rw-r--r--arch/i386/boot/pm.c6
-rw-r--r--arch/i386/boot/video-vesa.c34
-rw-r--r--arch/i386/kernel/alternative.c6
-rw-r--r--arch/i386/kernel/cpu/intel_cacheinfo.c4
-rw-r--r--arch/i386/kernel/cpu/perfctr-watchdog.c28
-rw-r--r--arch/i386/kernel/nmi.c2
-rw-r--r--arch/i386/kernel/ptrace.c1
-rw-r--r--arch/i386/kernel/traps.c33
-rw-r--r--arch/i386/mach-generic/Makefile2
-rw-r--r--arch/i386/mach-voyager/Makefile2
-rw-r--r--arch/i386/mm/highmem.c7
-rw-r--r--arch/i386/mm/hugetlbpage.c2
-rw-r--r--arch/i386/pci/irq.c1
-rw-r--r--arch/i386/pci/pcbios.c2
14 files changed, 83 insertions, 47 deletions
diff --git a/arch/i386/boot/pm.c b/arch/i386/boot/pm.c
index 6be9ca811d1..09fb342cc62 100644
--- a/arch/i386/boot/pm.c
+++ b/arch/i386/boot/pm.c
@@ -122,7 +122,11 @@ static void setup_gdt(void)
/* DS: data, read/write, 4 GB, base 0 */
[GDT_ENTRY_BOOT_DS] = GDT_ENTRY(0xc093, 0, 0xfffff),
};
- struct gdt_ptr gdt;
+ /* Xen HVM incorrectly stores a pointer to the gdt_ptr, instead
+ of the gdt_ptr contents. Thus, make it static so it will
+ stay in memory, at least long enough that we switch to the
+ proper kernel GDT. */
+ static struct gdt_ptr gdt;
gdt.len = sizeof(boot_gdt)-1;
gdt.ptr = (u32)&boot_gdt + (ds() << 4);
diff --git a/arch/i386/boot/video-vesa.c b/arch/i386/boot/video-vesa.c
index f1bc71e948c..19219071071 100644
--- a/arch/i386/boot/video-vesa.c
+++ b/arch/i386/boot/video-vesa.c
@@ -29,7 +29,7 @@ static void vesa_store_mode_params_graphics(void);
static int vesa_probe(void)
{
#if defined(CONFIG_VIDEO_VESA) || defined(CONFIG_FIRMWARE_EDID)
- u16 ax;
+ u16 ax, cx, di;
u16 mode;
addr_t mode_ptr;
struct mode_info *mi;
@@ -39,9 +39,11 @@ static int vesa_probe(void)
vginfo.signature = VBE2_MAGIC;
- /* Optimistically assume a VESA BIOS is register-clean... */
ax = 0x4f00;
- asm("int $0x10" : "+a" (ax), "=m" (vginfo) : "D" (&vginfo));
+ di = (size_t)&vginfo;
+ asm(INT10
+ : "+a" (ax), "+D" (di), "=m" (vginfo)
+ : : "ebx", "ecx", "edx", "esi");
if (ax != 0x004f ||
vginfo.signature != VESA_MAGIC ||
@@ -64,9 +66,11 @@ static int vesa_probe(void)
memset(&vminfo, 0, sizeof vminfo); /* Just in case... */
ax = 0x4f01;
- asm("int $0x10"
- : "+a" (ax), "=m" (vminfo)
- : "c" (mode), "D" (&vminfo));
+ cx = mode;
+ di = (size_t)&vminfo;
+ asm(INT10
+ : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo)
+ : : "ebx", "edx", "esi");
if (ax != 0x004f)
continue;
@@ -102,16 +106,18 @@ static int vesa_probe(void)
static int vesa_set_mode(struct mode_info *mode)
{
- u16 ax;
+ u16 ax, bx, cx, di;
int is_graphic;
u16 vesa_mode = mode->mode - VIDEO_FIRST_VESA;
memset(&vminfo, 0, sizeof vminfo); /* Just in case... */
ax = 0x4f01;
- asm("int $0x10"
- : "+a" (ax), "=m" (vminfo)
- : "c" (vesa_mode), "D" (&vminfo));
+ cx = vesa_mode;
+ di = (size_t)&vminfo;
+ asm(INT10
+ : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo)
+ : : "ebx", "edx", "esi");
if (ax != 0x004f)
return -1;
@@ -129,9 +135,11 @@ static int vesa_set_mode(struct mode_info *mode)
ax = 0x4f02;
- asm volatile("int $0x10"
- : "+a" (ax)
- : "b" (vesa_mode), "D" (0));
+ bx = vesa_mode;
+ di = 0;
+ asm volatile(INT10
+ : "+a" (ax), "+b" (bx), "+D" (di)
+ : : "ecx", "edx", "esi");
if (ax != 0x004f)
return -1;
diff --git a/arch/i386/kernel/alternative.c b/arch/i386/kernel/alternative.c
index 9f4ac8b02de..bd72d94e713 100644
--- a/arch/i386/kernel/alternative.c
+++ b/arch/i386/kernel/alternative.c
@@ -445,8 +445,6 @@ void __kprobes text_poke(void *addr, unsigned char *opcode, int len)
{
memcpy(addr, opcode, len);
sync_core();
- /* Not strictly needed, but can speed CPU recovery up. Ignore cross cacheline
- case. */
- if (cpu_has_clflush)
- asm("clflush (%0) " :: "r" (addr) : "memory");
+ /* Could also do a CLFLUSH here to speed up CPU recovery; but
+ that causes hangs on some VIA CPUs. */
}
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index d5a456d27d8..db6c25aa577 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -515,7 +515,7 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
cpuid4_info[cpu] = kzalloc(
sizeof(struct _cpuid4_info) * num_cache_leaves, GFP_KERNEL);
- if (unlikely(cpuid4_info[cpu] == NULL))
+ if (cpuid4_info[cpu] == NULL)
return -ENOMEM;
oldmask = current->cpus_allowed;
@@ -748,6 +748,8 @@ static void __cpuinit cache_remove_dev(struct sys_device * sys_dev)
unsigned int cpu = sys_dev->id;
unsigned long i;
+ if (cpuid4_info[cpu] == NULL)
+ return;
for (i = 0; i < num_cache_leaves; i++) {
cache_remove_shared_cpu_map(cpu, i);
kobject_unregister(&(INDEX_KOBJECT_PTR(cpu,i)->kobj));
diff --git a/arch/i386/kernel/cpu/perfctr-watchdog.c b/arch/i386/kernel/cpu/perfctr-watchdog.c
index 4be488e73be..93fecd4b03d 100644
--- a/arch/i386/kernel/cpu/perfctr-watchdog.c
+++ b/arch/i386/kernel/cpu/perfctr-watchdog.c
@@ -263,8 +263,8 @@ static int setup_k7_watchdog(unsigned nmi_hz)
unsigned int evntsel;
struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
- perfctr_msr = MSR_K7_PERFCTR0;
- evntsel_msr = MSR_K7_EVNTSEL0;
+ perfctr_msr = wd_ops->perfctr;
+ evntsel_msr = wd_ops->evntsel;
wrmsrl(perfctr_msr, 0UL);
@@ -343,8 +343,8 @@ static int setup_p6_watchdog(unsigned nmi_hz)
unsigned int evntsel;
struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk);
- perfctr_msr = MSR_P6_PERFCTR0;
- evntsel_msr = MSR_P6_EVNTSEL0;
+ perfctr_msr = wd_ops->perfctr;
+ evntsel_msr = wd_ops->evntsel;
/* KVM doesn't implement this MSR */
if (wrmsr_safe(perfctr_msr, 0, 0) < 0)
@@ -569,8 +569,8 @@ static int setup_intel_arch_watchdog(unsigned nmi_hz)
(ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT))
return 0;
- perfctr_msr = MSR_ARCH_PERFMON_PERFCTR1;
- evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL1;
+ perfctr_msr = wd_ops->perfctr;
+ evntsel_msr = wd_ops->evntsel;
wrmsrl(perfctr_msr, 0UL);
@@ -605,6 +605,16 @@ static struct wd_ops intel_arch_wd_ops = {
.evntsel = MSR_ARCH_PERFMON_EVENTSEL1,
};
+static struct wd_ops coreduo_wd_ops = {
+ .reserve = single_msr_reserve,
+ .unreserve = single_msr_unreserve,
+ .setup = setup_intel_arch_watchdog,
+ .rearm = p6_rearm,
+ .stop = single_msr_stop_watchdog,
+ .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
+ .evntsel = MSR_ARCH_PERFMON_EVENTSEL0,
+};
+
static void probe_nmi_watchdog(void)
{
switch (boot_cpu_data.x86_vendor) {
@@ -615,6 +625,12 @@ static void probe_nmi_watchdog(void)
wd_ops = &k7_wd_ops;
break;
case X86_VENDOR_INTEL:
+ /* Work around Core Duo (Yonah) errata AE49 where perfctr1
+ doesn't have a working enable bit. */
+ if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 14) {
+ wd_ops = &coreduo_wd_ops;
+ break;
+ }
if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) {
wd_ops = &intel_arch_wd_ops;
break;
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 8c1c965eb2a..c7227e2180f 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -115,12 +115,12 @@ static int __init check_nmi_watchdog(void)
atomic_dec(&nmi_active);
}
}
+ endflag = 1;
if (!atomic_read(&nmi_active)) {
kfree(prev_nmi_count);
atomic_set(&nmi_active, -1);
return -1;
}
- endflag = 1;
printk("OK.\n");
/* now that we know it works we can reduce NMI frequency to
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 0c8f00e69c4..7c1b92522e9 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -274,7 +274,6 @@ static void clear_singlestep(struct task_struct *child)
void ptrace_disable(struct task_struct *child)
{
clear_singlestep(child);
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
}
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index cfffe3dd9e8..47b0bef335b 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -100,36 +100,45 @@ asmlinkage void machine_check(void);
int kstack_depth_to_print = 24;
static unsigned int code_bytes = 64;
-static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
+static inline int valid_stack_ptr(struct thread_info *tinfo, void *p, unsigned size)
{
return p > (void *)tinfo &&
- p < (void *)tinfo + THREAD_SIZE - 3;
+ p <= (void *)tinfo + THREAD_SIZE - size;
}
+/* The form of the top of the frame on the stack */
+struct stack_frame {
+ struct stack_frame *next_frame;
+ unsigned long return_address;
+};
+
static inline unsigned long print_context_stack(struct thread_info *tinfo,
unsigned long *stack, unsigned long ebp,
struct stacktrace_ops *ops, void *data)
{
- unsigned long addr;
-
#ifdef CONFIG_FRAME_POINTER
- while (valid_stack_ptr(tinfo, (void *)ebp)) {
- unsigned long new_ebp;
- addr = *(unsigned long *)(ebp + 4);
+ struct stack_frame *frame = (struct stack_frame *)ebp;
+ while (valid_stack_ptr(tinfo, frame, sizeof(*frame))) {
+ struct stack_frame *next;
+ unsigned long addr;
+
+ addr = frame->return_address;
ops->address(data, addr);
/*
* break out of recursive entries (such as
* end_of_stack_stop_unwind_function). Also,
* we can never allow a frame pointer to
* move downwards!
- */
- new_ebp = *(unsigned long *)ebp;
- if (new_ebp <= ebp)
+ */
+ next = frame->next_frame;
+ if (next <= frame)
break;
- ebp = new_ebp;
+ frame = next;
}
#else
- while (valid_stack_ptr(tinfo, stack)) {
+ while (valid_stack_ptr(tinfo, stack, sizeof(*stack))) {
+ unsigned long addr;
+
addr = *stack++;
if (__kernel_text_address(addr))
ops->address(data, addr);
diff --git a/arch/i386/mach-generic/Makefile b/arch/i386/mach-generic/Makefile
index 77fbc9f64fb..6914485c0d8 100644
--- a/arch/i386/mach-generic/Makefile
+++ b/arch/i386/mach-generic/Makefile
@@ -2,6 +2,6 @@
# Makefile for the generic architecture
#
-EXTRA_CFLAGS += -I../kernel
+EXTRA_CFLAGS := -Iarch/i386/kernel
obj-y := probe.o summit.o bigsmp.o es7000.o default.o ../mach-es7000/
diff --git a/arch/i386/mach-voyager/Makefile b/arch/i386/mach-voyager/Makefile
index f24d2965131..33b74cf0dd2 100644
--- a/arch/i386/mach-voyager/Makefile
+++ b/arch/i386/mach-voyager/Makefile
@@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#
-EXTRA_CFLAGS += -I../kernel
+EXTRA_CFLAGS := -Iarch/i386/kernel
obj-y := setup.o voyager_basic.o voyager_thread.o
obj-$(CONFIG_SMP) += voyager_smp.o voyager_cat.o
diff --git a/arch/i386/mm/highmem.c b/arch/i386/mm/highmem.c
index ad8d86cc683..1c3bf95f735 100644
--- a/arch/i386/mm/highmem.c
+++ b/arch/i386/mm/highmem.c
@@ -34,17 +34,16 @@ void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
- idx = type + KM_TYPE_NR*smp_processor_id();
- BUG_ON(!pte_none(*(kmap_pte-idx)));
-
if (!PageHighMem(page))
return page_address(page);
+ idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+ BUG_ON(!pte_none(*(kmap_pte-idx)));
set_pte(kmap_pte-idx, mk_pte(page, prot));
arch_flush_lazy_mmu_mode();
- return (void*) vaddr;
+ return (void *)vaddr;
}
void *kmap_atomic(struct page *page, enum km_type type)
diff --git a/arch/i386/mm/hugetlbpage.c b/arch/i386/mm/hugetlbpage.c
index efdf95ac803..6c06d9c0488 100644
--- a/arch/i386/mm/hugetlbpage.c
+++ b/arch/i386/mm/hugetlbpage.c
@@ -367,7 +367,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
return -ENOMEM;
if (flags & MAP_FIXED) {
- if (prepare_hugepage_range(addr, len, pgoff))
+ if (prepare_hugepage_range(addr, len))
return -EINVAL;
return addr;
}
diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c
index 665db063a40..8434f2323b8 100644
--- a/arch/i386/pci/irq.c
+++ b/arch/i386/pci/irq.c
@@ -550,6 +550,7 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
case PCI_DEVICE_ID_INTEL_ICH9_3:
case PCI_DEVICE_ID_INTEL_ICH9_4:
case PCI_DEVICE_ID_INTEL_ICH9_5:
+ case PCI_DEVICE_ID_INTEL_TOLAPAI_0:
r->name = "PIIX/ICH";
r->get = pirq_piix_get;
r->set = pirq_piix_set;
diff --git a/arch/i386/pci/pcbios.c b/arch/i386/pci/pcbios.c
index 5f5193401be..10ac8c316c4 100644
--- a/arch/i386/pci/pcbios.c
+++ b/arch/i386/pci/pcbios.c
@@ -412,7 +412,7 @@ struct irq_routing_options {
u16 segment;
} __attribute__((packed));
-struct irq_routing_table * __devinit pcibios_get_irq_routing_table(void)
+struct irq_routing_table * pcibios_get_irq_routing_table(void)
{
struct irq_routing_options opt;
struct irq_routing_table *rt = NULL;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-30 01:11:20 +0000