summaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/acpi/realmode/wakeup.lds.S3
-rw-r--r--arch/x86/kernel/apic/x2apic_uv_x.c8
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce.c61
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce_intel.c1
-rw-r--r--arch/x86/kernel/cpu/mtrr/if.c17
-rw-r--r--arch/x86/kernel/e820.c4
-rw-r--r--arch/x86/kernel/early_printk.c5
-rw-r--r--arch/x86/kernel/i386_ksyms_32.c2
-rw-r--r--arch/x86/kernel/irq.c4
-rw-r--r--arch/x86/kernel/pci-dma.c4
-rw-r--r--arch/x86/kernel/pci-gart_64.c1
-rw-r--r--arch/x86/kernel/reboot.c1
-rw-r--r--arch/x86/kernel/time.c3
-rw-r--r--arch/x86/kernel/tlb_uv.c9
-rw-r--r--arch/x86/kernel/trampoline.c12
-rw-r--r--arch/x86/kernel/trampoline_64.S4
-rw-r--r--arch/x86/kernel/vmi_32.c2
-rw-r--r--arch/x86/kernel/vmlinux.lds.S3
18 files changed, 95 insertions, 49 deletions
diff --git a/arch/x86/kernel/acpi/realmode/wakeup.lds.S b/arch/x86/kernel/acpi/realmode/wakeup.lds.S
index 7da00b799cd..060fff8f5c5 100644
--- a/arch/x86/kernel/acpi/realmode/wakeup.lds.S
+++ b/arch/x86/kernel/acpi/realmode/wakeup.lds.S
@@ -57,5 +57,8 @@ SECTIONS
*(.note*)
}
+ /*
+ * The ASSERT() sink to . is intentional, for binutils 2.14 compatibility:
+ */
. = ASSERT(_end <= WAKEUP_SIZE, "Wakeup too big!");
}
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index f5f5886a6b5..326c25477d3 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -352,14 +352,14 @@ static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size)
for (i = 0; i < ARRAY_SIZE(redir_addrs); i++) {
alias.v = uv_read_local_mmr(redir_addrs[i].alias);
- if (alias.s.base == 0) {
+ if (alias.s.enable && alias.s.base == 0) {
*size = (1UL << alias.s.m_alias);
redirect.v = uv_read_local_mmr(redir_addrs[i].redirect);
*base = (unsigned long)redirect.s.dest_base << DEST_SHIFT;
return;
}
}
- BUG();
+ *base = *size = 0;
}
enum map_type {map_wb, map_uc};
@@ -619,12 +619,12 @@ void __init uv_system_init(void)
uv_cpu_hub_info(cpu)->lowmem_remap_base = lowmem_redir_base;
uv_cpu_hub_info(cpu)->lowmem_remap_top = lowmem_redir_size;
uv_cpu_hub_info(cpu)->m_val = m_val;
- uv_cpu_hub_info(cpu)->n_val = m_val;
+ uv_cpu_hub_info(cpu)->n_val = n_val;
uv_cpu_hub_info(cpu)->numa_blade_id = blade;
uv_cpu_hub_info(cpu)->blade_processor_id = lcpu;
uv_cpu_hub_info(cpu)->pnode = pnode;
uv_cpu_hub_info(cpu)->pnode_mask = pnode_mask;
- uv_cpu_hub_info(cpu)->gpa_mask = (1 << (m_val + n_val)) - 1;
+ uv_cpu_hub_info(cpu)->gpa_mask = (1UL << (m_val + n_val)) - 1;
uv_cpu_hub_info(cpu)->gnode_upper = gnode_upper;
uv_cpu_hub_info(cpu)->gnode_extra = gnode_extra;
uv_cpu_hub_info(cpu)->global_mmr_base = mmr_base;
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 183c3457d2f..721a77ca811 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -85,6 +85,18 @@ static DECLARE_WAIT_QUEUE_HEAD(mce_wait);
static DEFINE_PER_CPU(struct mce, mces_seen);
static int cpu_missing;
+static void default_decode_mce(struct mce *m)
+{
+ pr_emerg("No human readable MCE decoding support on this CPU type.\n");
+ pr_emerg("Run the message through 'mcelog --ascii' to decode.\n");
+}
+
+/*
+ * CPU/chipset specific EDAC code can register a callback here to print
+ * MCE errors in a human-readable form:
+ */
+void (*x86_mce_decode_callback)(struct mce *m) = default_decode_mce;
+EXPORT_SYMBOL(x86_mce_decode_callback);
/* MCA banks polled by the period polling timer for corrected events */
DEFINE_PER_CPU(mce_banks_t, mce_poll_banks) = {
@@ -165,46 +177,46 @@ void mce_log(struct mce *mce)
set_bit(0, &mce_need_notify);
}
-void __weak decode_mce(struct mce *m)
-{
- return;
-}
-
static void print_mce(struct mce *m)
{
- printk(KERN_EMERG
- "CPU %d: Machine Check Exception: %16Lx Bank %d: %016Lx\n",
+ pr_emerg("CPU %d: Machine Check Exception: %16Lx Bank %d: %016Lx\n",
m->extcpu, m->mcgstatus, m->bank, m->status);
+
if (m->ip) {
- printk(KERN_EMERG "RIP%s %02x:<%016Lx> ",
- !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
- m->cs, m->ip);
+ pr_emerg("RIP%s %02x:<%016Lx> ",
+ !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
+ m->cs, m->ip);
+
if (m->cs == __KERNEL_CS)
print_symbol("{%s}", m->ip);
- printk(KERN_CONT "\n");
+ pr_cont("\n");
}
- printk(KERN_EMERG "TSC %llx ", m->tsc);
+
+ pr_emerg("TSC %llx ", m->tsc);
if (m->addr)
- printk(KERN_CONT "ADDR %llx ", m->addr);
+ pr_cont("ADDR %llx ", m->addr);
if (m->misc)
- printk(KERN_CONT "MISC %llx ", m->misc);
- printk(KERN_CONT "\n");
- printk(KERN_EMERG "PROCESSOR %u:%x TIME %llu SOCKET %u APIC %x\n",
- m->cpuvendor, m->cpuid, m->time, m->socketid,
- m->apicid);
+ pr_cont("MISC %llx ", m->misc);
- decode_mce(m);
+ pr_cont("\n");
+ pr_emerg("PROCESSOR %u:%x TIME %llu SOCKET %u APIC %x\n",
+ m->cpuvendor, m->cpuid, m->time, m->socketid, m->apicid);
+
+ /*
+ * Print out human-readable details about the MCE error,
+ * (if the CPU has an implementation for that):
+ */
+ x86_mce_decode_callback(m);
}
static void print_mce_head(void)
{
- printk(KERN_EMERG "\nHARDWARE ERROR\n");
+ pr_emerg("\nHARDWARE ERROR\n");
}
static void print_mce_tail(void)
{
- printk(KERN_EMERG "This is not a software problem!\n"
- "Run through mcelog --ascii to decode and contact your hardware vendor\n");
+ pr_emerg("This is not a software problem!\n");
}
#define PANIC_TIMEOUT 5 /* 5 seconds */
@@ -218,6 +230,7 @@ static atomic_t mce_fake_paniced;
static void wait_for_panic(void)
{
long timeout = PANIC_TIMEOUT*USEC_PER_SEC;
+
preempt_disable();
local_irq_enable();
while (timeout-- > 0)
@@ -285,6 +298,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
static int msr_to_offset(u32 msr)
{
unsigned bank = __get_cpu_var(injectm.bank);
+
if (msr == rip_msr)
return offsetof(struct mce, ip);
if (msr == MSR_IA32_MCx_STATUS(bank))
@@ -1200,7 +1214,8 @@ static int __cpuinit mce_cap_init(void)
rdmsrl(MSR_IA32_MCG_CAP, cap);
b = cap & MCG_BANKCNT_MASK;
- printk(KERN_INFO "mce: CPU supports %d MCE banks\n", b);
+ if (!banks)
+ printk(KERN_INFO "mce: CPU supports %d MCE banks\n", b);
if (b > MAX_NR_BANKS) {
printk(KERN_WARNING
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c
index 889f665fe93..7c785634af2 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_intel.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c
@@ -8,6 +8,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/percpu.h>
+#include <linux/sched.h>
#include <asm/apic.h>
#include <asm/processor.h>
#include <asm/msr.h>
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index f04e7252760..3c1b12d461d 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -96,17 +96,24 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
unsigned long long base, size;
char *ptr;
char line[LINE_SIZE];
+ int length;
size_t linelen;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (!len)
- return -EINVAL;
memset(line, 0, LINE_SIZE);
- if (len > LINE_SIZE)
- len = LINE_SIZE;
- if (copy_from_user(line, buf, len - 1))
+
+ length = len;
+ length--;
+
+ if (length > LINE_SIZE - 1)
+ length = LINE_SIZE - 1;
+
+ if (length < 0)
+ return -EINVAL;
+
+ if (copy_from_user(line, buf, length))
return -EFAULT;
linelen = strlen(line);
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 85419bb7d4a..d17d482a04f 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1378,8 +1378,8 @@ static unsigned long ram_alignment(resource_size_t pos)
if (mb < 16)
return 1024*1024;
- /* To 32MB for anything above that */
- return 32*1024*1024;
+ /* To 64MB for anything above that */
+ return 64*1024*1024;
}
#define MAX_RESOURCE_SIZE ((resource_size_t)-1)
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 41fd965c80c..b9c830c12b4 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -206,8 +206,11 @@ static int __init setup_early_printk(char *buf)
while (*buf != '\0') {
if (!strncmp(buf, "serial", 6)) {
- early_serial_init(buf + 6);
+ buf += 6;
+ early_serial_init(buf);
early_console_register(&early_serial_console, keep);
+ if (!strncmp(buf, ",ttyS", 5))
+ buf += 5;
}
if (!strncmp(buf, "ttyS", 4)) {
early_serial_init(buf + 4);
diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
index 1736c5a725a..9c3bd4a2050 100644
--- a/arch/x86/kernel/i386_ksyms_32.c
+++ b/arch/x86/kernel/i386_ksyms_32.c
@@ -15,8 +15,10 @@ EXPORT_SYMBOL(mcount);
* the export, but dont use it from C code, it is used
* by assembly code and is not using C calling convention!
*/
+#ifndef CONFIG_X86_CMPXCHG64
extern void cmpxchg8b_emu(void);
EXPORT_SYMBOL(cmpxchg8b_emu);
+#endif
/* Networking helper routines. */
EXPORT_SYMBOL(csum_partial_copy_generic);
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 74656d1d4e3..04bbd527856 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -63,10 +63,10 @@ static int show_other_interrupts(struct seq_file *p, int prec)
for_each_online_cpu(j)
seq_printf(p, "%10u ", irq_stats(j)->irq_spurious_count);
seq_printf(p, " Spurious interrupts\n");
- seq_printf(p, "%*s: ", prec, "CNT");
+ seq_printf(p, "%*s: ", prec, "PMI");
for_each_online_cpu(j)
seq_printf(p, "%10u ", irq_stats(j)->apic_perf_irqs);
- seq_printf(p, " Performance counter interrupts\n");
+ seq_printf(p, " Performance monitoring interrupts\n");
seq_printf(p, "%*s: ", prec, "PND");
for_each_online_cpu(j)
seq_printf(p, "%10u ", irq_stats(j)->apic_pending_irqs);
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 64b838eac18..b2a71dca564 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -35,7 +35,7 @@ int iommu_detected __read_mostly = 0;
/*
* This variable becomes 1 if iommu=pt is passed on the kernel command line.
- * If this variable is 1, IOMMU implementations do no DMA ranslation for
+ * If this variable is 1, IOMMU implementations do no DMA translation for
* devices and allow every device to access to whole physical memory. This is
* useful if a user want to use an IOMMU only for KVM device assignment to
* guests and not for driver dma translation.
@@ -311,7 +311,7 @@ void pci_iommu_shutdown(void)
amd_iommu_shutdown();
}
/* Must execute after PCI subsystem */
-fs_initcall(pci_iommu_init);
+rootfs_initcall(pci_iommu_init);
#ifdef CONFIG_PCI
/* Many VIA bridges seem to corrupt data for DAC. Disable it here */
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 98a827ee9ed..a7f1b64f86e 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -16,6 +16,7 @@
#include <linux/agp_backend.h>
#include <linux/init.h>
#include <linux/mm.h>
+#include <linux/sched.h>
#include <linux/string.h>
#include <linux/spinlock.h>
#include <linux/pci.h>
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 27349f92a6d..a1a3cdda06e 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -4,6 +4,7 @@
#include <linux/pm.h>
#include <linux/efi.h>
#include <linux/dmi.h>
+#include <linux/sched.h>
#include <linux/tboot.h>
#include <acpi/reboot.h>
#include <asm/io.h>
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index dcb00d27851..be2573448ed 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -38,7 +38,8 @@ unsigned long profile_pc(struct pt_regs *regs)
#ifdef CONFIG_FRAME_POINTER
return *(unsigned long *)(regs->bp + sizeof(long));
#else
- unsigned long *sp = (unsigned long *)regs->sp;
+ unsigned long *sp =
+ (unsigned long *)kernel_stack_pointer(regs);
/*
* Return address is either directly at stack pointer
* or above a saved flags. Eflags has bits 22-31 zero,
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
index 503c1f2e883..1740c85e24b 100644
--- a/arch/x86/kernel/tlb_uv.c
+++ b/arch/x86/kernel/tlb_uv.c
@@ -23,8 +23,6 @@
static struct bau_control **uv_bau_table_bases __read_mostly;
static int uv_bau_retry_limit __read_mostly;
-/* position of pnode (which is nasid>>1): */
-static int uv_nshift __read_mostly;
/* base pnode in this partition */
static int uv_partition_base_pnode __read_mostly;
@@ -723,7 +721,7 @@ uv_activation_descriptor_init(int node, int pnode)
BUG_ON(!adp);
pa = uv_gpa(adp); /* need the real nasid*/
- n = pa >> uv_nshift;
+ n = uv_gpa_to_pnode(pa);
m = pa & uv_mmask;
uv_write_global_mmr64(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE,
@@ -778,7 +776,7 @@ uv_payload_queue_init(int node, int pnode, struct bau_control *bau_tablesp)
* need the pnode of where the memory was really allocated
*/
pa = uv_gpa(pqp);
- pn = pa >> uv_nshift;
+ pn = uv_gpa_to_pnode(pa);
uv_write_global_mmr64(pnode,
UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST,
((unsigned long)pn << UV_PAYLOADQ_PNODE_SHIFT) |
@@ -843,8 +841,7 @@ static int __init uv_bau_init(void)
GFP_KERNEL, cpu_to_node(cur_cpu));
uv_bau_retry_limit = 1;
- uv_nshift = uv_hub_info->n_val;
- uv_mmask = (1UL << uv_hub_info->n_val) - 1;
+ uv_mmask = (1UL << uv_hub_info->m_val) - 1;
nblades = uv_num_possible_blades();
uv_bau_table_bases = (struct bau_control **)
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c
index 699f7eeb896..cd022121cab 100644
--- a/arch/x86/kernel/trampoline.c
+++ b/arch/x86/kernel/trampoline.c
@@ -3,8 +3,16 @@
#include <asm/trampoline.h>
#include <asm/e820.h>
+#if defined(CONFIG_X86_64) && defined(CONFIG_ACPI_SLEEP)
+#define __trampinit
+#define __trampinitdata
+#else
+#define __trampinit __cpuinit
+#define __trampinitdata __cpuinitdata
+#endif
+
/* ready for x86_64 and x86 */
-unsigned char *__cpuinitdata trampoline_base = __va(TRAMPOLINE_BASE);
+unsigned char *__trampinitdata trampoline_base = __va(TRAMPOLINE_BASE);
void __init reserve_trampoline_memory(void)
{
@@ -26,7 +34,7 @@ void __init reserve_trampoline_memory(void)
* bootstrap into the page concerned. The caller
* has made sure it's suitably aligned.
*/
-unsigned long __cpuinit setup_trampoline(void)
+unsigned long __trampinit setup_trampoline(void)
{
memcpy(trampoline_base, trampoline_data, TRAMPOLINE_SIZE);
return virt_to_phys(trampoline_base);
diff --git a/arch/x86/kernel/trampoline_64.S b/arch/x86/kernel/trampoline_64.S
index 596d54c660a..3af2dff58b2 100644
--- a/arch/x86/kernel/trampoline_64.S
+++ b/arch/x86/kernel/trampoline_64.S
@@ -32,8 +32,12 @@
#include <asm/segment.h>
#include <asm/processor-flags.h>
+#ifdef CONFIG_ACPI_SLEEP
+.section .rodata, "a", @progbits
+#else
/* We can free up the trampoline after bootup if cpu hotplug is not supported. */
__CPUINITRODATA
+#endif
.code16
ENTRY(trampoline_data)
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 31e6f6cfe53..d430e4c3019 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -648,7 +648,7 @@ static inline int __init activate_vmi(void)
pv_info.paravirt_enabled = 1;
pv_info.kernel_rpl = kernel_cs & SEGMENT_RPL_MASK;
- pv_info.name = "vmi";
+ pv_info.name = "vmi [deprecated]";
pv_init_ops.patch = vmi_patch;
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 92929fb3f9f..3c68fe2d46c 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -305,6 +305,9 @@ SECTIONS
#ifdef CONFIG_X86_32
+/*
+ * The ASSERT() sink to . is intentional, for binutils 2.14 compatibility:
+ */
. = ASSERT((_end - LOAD_OFFSET <= KERNEL_IMAGE_SIZE),
"kernel image bigger than KERNEL_IMAGE_SIZE");
#else
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-12 00:25:27 +0000