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-rw-r--r--arch/i386/kernel/apm.c36
-rw-r--r--arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c7
-rw-r--r--arch/i386/kernel/cpu/cpufreq/longhaul.c56
-rw-r--r--arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c2
-rw-r--r--arch/i386/kernel/crash.c10
-rw-r--r--arch/i386/kernel/efi.c4
-rw-r--r--arch/i386/kernel/i8237.c5
-rw-r--r--arch/i386/kernel/nmi.c4
-rw-r--r--arch/i386/kernel/process.c5
-rw-r--r--arch/i386/kernel/setup.c10
-rw-r--r--arch/i386/kernel/smp.c27
-rw-r--r--arch/i386/kernel/smpboot.c7
-rw-r--r--arch/i386/kernel/srat.c7
-rw-r--r--arch/i386/kernel/time.c3
-rw-r--r--arch/i386/kernel/traps.c2
15 files changed, 121 insertions, 64 deletions
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index ff9ce4b5eaa..b42f2d914af 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -225,6 +225,7 @@
#include <linux/smp_lock.h>
#include <linux/dmi.h>
#include <linux/suspend.h>
+#include <linux/kthread.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -402,8 +403,6 @@ static int realmode_power_off = 1;
#else
static int realmode_power_off;
#endif
-static int exit_kapmd __read_mostly;
-static int kapmd_running __read_mostly;
#ifdef CONFIG_APM_ALLOW_INTS
static int allow_ints = 1;
#else
@@ -419,6 +418,8 @@ static const struct desc_struct bad_bios_desc = { 0, 0x00409200 };
static const char driver_version[] = "1.16ac"; /* no spaces */
+static struct task_struct *kapmd_task;
+
/*
* APM event names taken from the APM 1.2 specification. These are
* the message codes that the BIOS uses to tell us about events
@@ -1423,7 +1424,7 @@ static void apm_mainloop(void)
set_current_state(TASK_INTERRUPTIBLE);
for (;;) {
schedule_timeout(APM_CHECK_TIMEOUT);
- if (exit_kapmd)
+ if (kthread_should_stop())
break;
/*
* Ok, check all events, check for idle (and mark us sleeping
@@ -1706,12 +1707,6 @@ static int apm(void *unused)
char * power_stat;
char * bat_stat;
- kapmd_running = 1;
-
- daemonize("kapmd");
-
- current->flags |= PF_NOFREEZE;
-
#ifdef CONFIG_SMP
/* 2002/08/01 - WT
* This is to avoid random crashes at boot time during initialization
@@ -1821,7 +1816,6 @@ static int apm(void *unused)
console_blank_hook = NULL;
#endif
}
- kapmd_running = 0;
return 0;
}
@@ -2220,7 +2214,7 @@ static int __init apm_init(void)
{
struct proc_dir_entry *apm_proc;
struct desc_struct *gdt;
- int ret;
+ int err;
dmi_check_system(apm_dmi_table);
@@ -2329,12 +2323,17 @@ static int __init apm_init(void)
if (apm_proc)
apm_proc->owner = THIS_MODULE;
- ret = kernel_thread(apm, NULL, CLONE_KERNEL | SIGCHLD);
- if (ret < 0) {
- printk(KERN_ERR "apm: disabled - Unable to start kernel thread.\n");
+ kapmd_task = kthread_create(apm, NULL, "kapmd");
+ if (IS_ERR(kapmd_task)) {
+ printk(KERN_ERR "apm: disabled - Unable to start kernel "
+ "thread.\n");
+ err = PTR_ERR(kapmd_task);
+ kapmd_task = NULL;
remove_proc_entry("apm", NULL);
- return -ENOMEM;
+ return err;
}
+ kapmd_task->flags |= PF_NOFREEZE;
+ wake_up_process(kapmd_task);
if (num_online_cpus() > 1 && !smp ) {
printk(KERN_NOTICE
@@ -2384,9 +2383,10 @@ static void __exit apm_exit(void)
remove_proc_entry("apm", NULL);
if (power_off)
pm_power_off = NULL;
- exit_kapmd = 1;
- while (kapmd_running)
- schedule();
+ if (kapmd_task) {
+ kthread_stop(kapmd_task);
+ kapmd_task = NULL;
+ }
#ifdef CONFIG_PM_LEGACY
pm_active = 0;
#endif
diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index ea19d091fd4..57c880bf0bd 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -396,13 +396,13 @@ static int acpi_cpufreq_early_init_acpi(void)
*/
static int bios_with_sw_any_bug;
-static int __init sw_any_bug_found(struct dmi_system_id *d)
+static int sw_any_bug_found(struct dmi_system_id *d)
{
bios_with_sw_any_bug = 1;
return 0;
}
-static struct dmi_system_id __initdata sw_any_bug_dmi_table[] = {
+static struct dmi_system_id sw_any_bug_dmi_table[] = {
{
.callback = sw_any_bug_found,
.ident = "Supermicro Server X6DLP",
@@ -597,7 +597,6 @@ static struct cpufreq_driver acpi_cpufreq_driver = {
.name = "acpi-cpufreq",
.owner = THIS_MODULE,
.attr = acpi_cpufreq_attr,
- .flags = CPUFREQ_STICKY,
};
@@ -608,7 +607,7 @@ acpi_cpufreq_init (void)
acpi_cpufreq_early_init_acpi();
- return cpufreq_register_driver(&acpi_cpufreq_driver);
+ return cpufreq_register_driver(&acpi_cpufreq_driver);
}
diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c
index f5cc9f5c9ba..7233abe5d69 100644
--- a/arch/i386/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c
@@ -178,11 +178,17 @@ static void do_powersaver(int cx_address, unsigned int clock_ratio_index)
safe_halt();
/* Change frequency on next halt or sleep */
wrmsrl(MSR_VIA_LONGHAUL, longhaul.val);
- ACPI_FLUSH_CPU_CACHE();
- /* Invoke C3 */
- inb(cx_address);
- /* Dummy op - must do something useless after P_LVL3 read */
- t = inl(acpi_fadt.xpm_tmr_blk.address);
+ if (port22_en) {
+ ACPI_FLUSH_CPU_CACHE();
+ /* Invoke C1 */
+ halt();
+ } else {
+ ACPI_FLUSH_CPU_CACHE();
+ /* Invoke C3 */
+ inb(cx_address);
+ /* Dummy op - must do something useless after P_LVL3 read */
+ t = inl(acpi_fadt.xpm_tmr_blk.address);
+ }
/* Disable bus ratio bit */
local_irq_disable();
@@ -567,16 +573,23 @@ static acpi_status longhaul_walk_callback(acpi_handle obj_handle,
static int enable_arbiter_disable(void)
{
struct pci_dev *dev;
+ int reg;
u8 pci_cmd;
/* Find PLE133 host bridge */
+ reg = 0x78;
dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8601_0, NULL);
+ /* Find CLE266 host bridge */
+ if (dev == NULL) {
+ reg = 0x76;
+ dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_862X_0, NULL);
+ }
if (dev != NULL) {
/* Enable access to port 0x22 */
- pci_read_config_byte(dev, 0x78, &pci_cmd);
+ pci_read_config_byte(dev, reg, &pci_cmd);
if ( !(pci_cmd & 1<<7) ) {
pci_cmd |= 1<<7;
- pci_write_config_byte(dev, 0x78, pci_cmd);
+ pci_write_config_byte(dev, reg, pci_cmd);
}
return 1;
}
@@ -680,20 +693,25 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
if (longhaul_version == TYPE_POWERSAVER) {
/* Check ACPI support for C3 state */
cx = &pr->power.states[ACPI_STATE_C3];
- if (cx->address == 0 ||
- (cx->latency > 1000 && ignore_latency == 0) )
+ if (cx->address > 0 &&
+ (cx->latency <= 1000 || ignore_latency != 0) ) {
+ goto print_support_type;
+ }
+ }
+ /* Check ACPI support for bus master arbiter disable */
+ if (!pr->flags.bm_control) {
+ if (enable_arbiter_disable()) {
+ port22_en = 1;
+ } else {
goto err_acpi;
-
- } else {
- /* Check ACPI support for bus master arbiter disable */
- if (!pr->flags.bm_control) {
- if (!enable_arbiter_disable()) {
- printk(KERN_ERR PFX "No ACPI support. No VT8601 host bridge. Aborting.\n");
- return -ENODEV;
- } else
- port22_en = 1;
}
}
+print_support_type:
+ if (!port22_en) {
+ printk (KERN_INFO PFX "Using ACPI support.\n");
+ } else {
+ printk (KERN_INFO PFX "Using northbridge support.\n");
+ }
ret = longhaul_get_ranges();
if (ret != 0)
@@ -716,7 +734,7 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
return 0;
err_acpi:
- printk(KERN_ERR PFX "No ACPI support for CPU frequency changes.\n");
+ printk(KERN_ERR PFX "No ACPI support. No VT8601 or VT8623 northbridge. Aborting.\n");
return -ENODEV;
}
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index 7a9325349e9..e8993baf3d1 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -386,7 +386,7 @@ static int centrino_cpu_early_init_acpi(void)
* than OS intended it to run at. Detect it and handle it cleanly.
*/
static int bios_with_sw_any_bug;
-static int __init sw_any_bug_found(struct dmi_system_id *d)
+static int sw_any_bug_found(struct dmi_system_id *d)
{
bios_with_sw_any_bug = 1;
return 0;
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index 67d297dc100..144b4328896 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -23,6 +23,7 @@
#include <asm/hw_irq.h>
#include <asm/apic.h>
#include <asm/kdebug.h>
+#include <asm/smp.h>
#include <mach_ipi.h>
@@ -88,7 +89,7 @@ static void crash_save_self(struct pt_regs *regs)
{
int cpu;
- cpu = smp_processor_id();
+ cpu = safe_smp_processor_id();
crash_save_this_cpu(regs, cpu);
}
@@ -133,7 +134,10 @@ static int crash_nmi_callback(struct notifier_block *self,
static void smp_send_nmi_allbutself(void)
{
- send_IPI_allbutself(NMI_VECTOR);
+ cpumask_t mask = cpu_online_map;
+ cpu_clear(safe_smp_processor_id(), mask);
+ if (!cpus_empty(mask))
+ send_IPI_mask(mask, NMI_VECTOR);
}
static struct notifier_block crash_nmi_nb = {
@@ -185,7 +189,7 @@ void machine_crash_shutdown(struct pt_regs *regs)
local_irq_disable();
/* Make a note of crashing cpu. Will be used in NMI callback.*/
- crashing_cpu = smp_processor_id();
+ crashing_cpu = safe_smp_processor_id();
nmi_shootdown_cpus();
lapic_shutdown();
#if defined(CONFIG_X86_IO_APIC)
diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c
index fe158042110..f9436989473 100644
--- a/arch/i386/kernel/efi.c
+++ b/arch/i386/kernel/efi.c
@@ -65,7 +65,7 @@ static unsigned long efi_rt_eflags;
static DEFINE_SPINLOCK(efi_rt_lock);
static pgd_t efi_bak_pg_dir_pointer[2];
-static void efi_call_phys_prelog(void)
+static void efi_call_phys_prelog(void) __acquires(efi_rt_lock)
{
unsigned long cr4;
unsigned long temp;
@@ -109,7 +109,7 @@ static void efi_call_phys_prelog(void)
load_gdt(cpu_gdt_descr);
}
-static void efi_call_phys_epilog(void)
+static void efi_call_phys_epilog(void) __releases(efi_rt_lock)
{
unsigned long cr4;
struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, 0);
diff --git a/arch/i386/kernel/i8237.c b/arch/i386/kernel/i8237.c
index c36d1c006c2..6f508e8d7c5 100644
--- a/arch/i386/kernel/i8237.c
+++ b/arch/i386/kernel/i8237.c
@@ -2,6 +2,11 @@
* i8237.c: 8237A DMA controller suspend functions.
*
* Written by Pierre Ossman, 2005.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
*/
#include <linux/init.h>
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index dbda706fdd1..3e8e3adb048 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -13,7 +13,6 @@
* Mikael Pettersson : PM converted to driver model. Disable/enable API.
*/
-#include <linux/config.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/module.h>
@@ -31,6 +30,9 @@
#include "mach_traps.h"
+int unknown_nmi_panic;
+int nmi_watchdog_enabled;
+
/* perfctr_nmi_owner tracks the ownership of the perfctr registers:
* evtsel_nmi_owner tracks the ownership of the event selection
* - different performance counters/ event selection may be reserved for
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 8c190ca7ae4..96cd0232e1e 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -425,13 +425,12 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
tsk = current;
if (unlikely(test_tsk_thread_flag(tsk, TIF_IO_BITMAP))) {
- p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
+ p->thread.io_bitmap_ptr = kmemdup(tsk->thread.io_bitmap_ptr,
+ IO_BITMAP_BYTES, GFP_KERNEL);
if (!p->thread.io_bitmap_ptr) {
p->thread.io_bitmap_max = 0;
return -ENOMEM;
}
- memcpy(p->thread.io_bitmap_ptr, tsk->thread.io_bitmap_ptr,
- IO_BITMAP_BYTES);
set_tsk_thread_flag(p, TIF_IO_BITMAP);
}
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 814cdebf737..000cf03751f 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -209,9 +209,6 @@ static struct resource adapter_rom_resources[] = { {
.flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM
} };
-#define ADAPTER_ROM_RESOURCES \
- (sizeof adapter_rom_resources / sizeof adapter_rom_resources[0])
-
static struct resource video_rom_resource = {
.name = "Video ROM",
.start = 0xc0000,
@@ -273,9 +270,6 @@ static struct resource standard_io_resources[] = { {
.flags = IORESOURCE_BUSY | IORESOURCE_IO
} };
-#define STANDARD_IO_RESOURCES \
- (sizeof standard_io_resources / sizeof standard_io_resources[0])
-
#define romsignature(x) (*(unsigned short *)(x) == 0xaa55)
static int __init romchecksum(unsigned char *rom, unsigned long length)
@@ -332,7 +326,7 @@ static void __init probe_roms(void)
}
/* check for adapter roms on 2k boundaries */
- for (i = 0; i < ADAPTER_ROM_RESOURCES && start < upper; start += 2048) {
+ for (i = 0; i < ARRAY_SIZE(adapter_rom_resources) && start < upper; start += 2048) {
rom = isa_bus_to_virt(start);
if (!romsignature(rom))
continue;
@@ -1272,7 +1266,7 @@ static int __init request_standard_resources(void)
request_resource(&iomem_resource, &video_ram_resource);
/* request I/O space for devices used on all i[345]86 PCs */
- for (i = 0; i < STANDARD_IO_RESOURCES; i++)
+ for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
request_resource(&ioport_resource, &standard_io_resources[i]);
return 0;
}
diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index 465188e2d70..1b080ab8a49 100644
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -700,3 +700,30 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
return 0;
}
EXPORT_SYMBOL(smp_call_function_single);
+
+static int convert_apicid_to_cpu(int apic_id)
+{
+ int i;
+
+ for (i = 0; i < NR_CPUS; i++) {
+ if (x86_cpu_to_apicid[i] == apic_id)
+ return i;
+ }
+ return -1;
+}
+
+int safe_smp_processor_id(void)
+{
+ int apicid, cpuid;
+
+ if (!boot_cpu_has(X86_FEATURE_APIC))
+ return 0;
+
+ apicid = hard_smp_processor_id();
+ if (apicid == BAD_APICID)
+ return 0;
+
+ cpuid = convert_apicid_to_cpu(apicid);
+
+ return cpuid >= 0 ? cpuid : 0;
+}
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index 020d873b7d2..0831f709f77 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -102,6 +102,8 @@ u8 x86_cpu_to_apicid[NR_CPUS] __read_mostly =
{ [0 ... NR_CPUS-1] = 0xff };
EXPORT_SYMBOL(x86_cpu_to_apicid);
+u8 apicid_2_node[MAX_APICID];
+
/*
* Trampoline 80x86 program as an array.
*/
@@ -645,7 +647,7 @@ static void map_cpu_to_logical_apicid(void)
{
int cpu = smp_processor_id();
int apicid = logical_smp_processor_id();
- int node = apicid_to_node(apicid);
+ int node = apicid_to_node(hard_smp_processor_id());
if (!node_online(node))
node = first_online_node;
@@ -954,6 +956,7 @@ static int __devinit do_boot_cpu(int apicid, int cpu)
irq_ctx_init(cpu);
+ x86_cpu_to_apicid[cpu] = apicid;
/*
* This grunge runs the startup process for
* the targeted processor.
@@ -1058,7 +1061,7 @@ static void __cpuinit do_warm_boot_cpu(void *p)
static int __cpuinit __smp_prepare_cpu(int cpu)
{
- DECLARE_COMPLETION(done);
+ DECLARE_COMPLETION_ONSTACK(done);
struct warm_boot_cpu_info info;
struct work_struct task;
int apicid, ret;
diff --git a/arch/i386/kernel/srat.c b/arch/i386/kernel/srat.c
index 32413122c4c..f7e735c077c 100644
--- a/arch/i386/kernel/srat.c
+++ b/arch/i386/kernel/srat.c
@@ -30,6 +30,7 @@
#include <linux/nodemask.h>
#include <asm/srat.h>
#include <asm/topology.h>
+#include <asm/smp.h>
/*
* proximity macros and definitions
@@ -54,6 +55,7 @@ struct node_memory_chunk_s {
static struct node_memory_chunk_s node_memory_chunk[MAXCHUNKS];
static int num_memory_chunks; /* total number of memory chunks */
+static u8 __initdata apicid_to_pxm[MAX_APICID];
extern void * boot_ioremap(unsigned long, unsigned long);
@@ -69,6 +71,8 @@ static void __init parse_cpu_affinity_structure(char *p)
/* mark this node as "seen" in node bitmap */
BMAP_SET(pxm_bitmap, cpu_affinity->proximity_domain);
+ apicid_to_pxm[cpu_affinity->apic_id] = cpu_affinity->proximity_domain;
+
printk("CPU 0x%02X in proximity domain 0x%02X\n",
cpu_affinity->apic_id, cpu_affinity->proximity_domain);
}
@@ -235,6 +239,9 @@ static int __init acpi20_parse_srat(struct acpi_table_srat *sratp)
printk("Number of logical nodes in system = %d\n", num_online_nodes());
printk("Number of memory chunks in system = %d\n", num_memory_chunks);
+ for (i = 0; i < MAX_APICID; i++)
+ apicid_2_node[i] = pxm_to_node(apicid_to_pxm[i]);
+
for (j = 0; j < num_memory_chunks; j++){
struct node_memory_chunk_s * chunk = &node_memory_chunk[j];
printk("chunk %d nid %d start_pfn %08lx end_pfn %08lx\n",
diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c
index 86944acfb64..58a2d558241 100644
--- a/arch/i386/kernel/time.c
+++ b/arch/i386/kernel/time.c
@@ -76,8 +76,6 @@ int pit_latch_buggy; /* extern */
unsigned int cpu_khz; /* Detected as we calibrate the TSC */
EXPORT_SYMBOL(cpu_khz);
-extern unsigned long wall_jiffies;
-
DEFINE_SPINLOCK(rtc_lock);
EXPORT_SYMBOL(rtc_lock);
@@ -329,7 +327,6 @@ static int timer_resume(struct sys_device *dev)
do_settimeofday(&ts);
write_seqlock_irqsave(&xtime_lock, flags);
jiffies_64 += sleep_length;
- wall_jiffies += sleep_length;
write_sequnlock_irqrestore(&xtime_lock, flags);
touch_softlockup_watchdog();
return 0;
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index a13037fe0ee..6820b8d643c 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -57,6 +57,8 @@
#include "mach_traps.h"
+int panic_on_unrecovered_nmi;
+
asmlinkage int system_call(void);
struct desc_struct default_ldt[] = { { 0, 0 }, { 0, 0 }, { 0, 0 },
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-29 16:44:03 +0000