diff options
Diffstat (limited to 'arch/i386/kernel')
| -rw-r--r-- | arch/i386/kernel/apm.c | 36 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c | 7 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/longhaul.c | 56 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c | 2 | ||||
| -rw-r--r-- | arch/i386/kernel/crash.c | 10 | ||||
| -rw-r--r-- | arch/i386/kernel/efi.c | 4 | ||||
| -rw-r--r-- | arch/i386/kernel/i8237.c | 5 | ||||
| -rw-r--r-- | arch/i386/kernel/nmi.c | 4 | ||||
| -rw-r--r-- | arch/i386/kernel/process.c | 5 | ||||
| -rw-r--r-- | arch/i386/kernel/setup.c | 10 | ||||
| -rw-r--r-- | arch/i386/kernel/smp.c | 27 | ||||
| -rw-r--r-- | arch/i386/kernel/smpboot.c | 7 | ||||
| -rw-r--r-- | arch/i386/kernel/srat.c | 7 | ||||
| -rw-r--r-- | arch/i386/kernel/time.c | 3 | ||||
| -rw-r--r-- | arch/i386/kernel/traps.c | 2 |
15 files changed, 121 insertions, 64 deletions
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c index ff9ce4b..b42f2d9 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 ea19d09..57c880b 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 f5cc9f5..7233abe 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 7a93253..e8993ba 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 67d297d..144b432 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 fe15804..f943698 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 c36d1c0..6f508e8 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 dbda706..3e8e3ad 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 8c190ca..96cd023 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 814cdeb..000cf03 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 465188e..1b080ab 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 020d873..0831f70 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 3241312..f7e735c 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 86944ac..58a2d55 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 a13037f..6820b8d 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 }, |
