diff options
Diffstat (limited to 'arch/x86_64/kernel')
| -rw-r--r-- | arch/x86_64/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/x86_64/kernel/cpufreq/Kconfig | 6 | ||||
| -rw-r--r-- | arch/x86_64/kernel/entry.S | 7 | ||||
| -rw-r--r-- | arch/x86_64/kernel/io_apic.c | 1 | ||||
| -rw-r--r-- | arch/x86_64/kernel/irq.c | 32 | ||||
| -rw-r--r-- | arch/x86_64/kernel/mce.c | 6 | ||||
| -rw-r--r-- | arch/x86_64/kernel/pci-dma.c | 15 | ||||
| -rw-r--r-- | arch/x86_64/kernel/setup.c | 21 | ||||
| -rw-r--r-- | arch/x86_64/kernel/setup64.c | 3 | ||||
| -rw-r--r-- | arch/x86_64/kernel/traps.c | 3 | ||||
| -rw-r--r-- | arch/x86_64/kernel/verify_cpu.S | 22 |
11 files changed, 81 insertions, 37 deletions
diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile index de1de8a2fd8..47f1dc30bf5 100644 --- a/arch/x86_64/kernel/Makefile +++ b/arch/x86_64/kernel/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_PCI) += early-quirks.o obj-y += topology.o obj-y += intel_cacheinfo.o +obj-y += addon_cpuid_features.o obj-y += pcspeaker.o CFLAGS_vsyscall.o := $(PROFILING) -g0 @@ -55,6 +56,7 @@ cpuid-$(subst m,y,$(CONFIG_X86_CPUID)) += ../../i386/kernel/cpuid.o topology-y += ../../i386/kernel/topology.o microcode-$(subst m,y,$(CONFIG_MICROCODE)) += ../../i386/kernel/microcode.o intel_cacheinfo-y += ../../i386/kernel/cpu/intel_cacheinfo.o +addon_cpuid_features-y += ../../i386/kernel/cpu/addon_cpuid_features.o quirks-y += ../../i386/kernel/quirks.o i8237-y += ../../i386/kernel/i8237.o msr-$(subst m,y,$(CONFIG_X86_MSR)) += ../../i386/kernel/msr.o diff --git a/arch/x86_64/kernel/cpufreq/Kconfig b/arch/x86_64/kernel/cpufreq/Kconfig index c0749d2479f..a3fd51926cb 100644 --- a/arch/x86_64/kernel/cpufreq/Kconfig +++ b/arch/x86_64/kernel/cpufreq/Kconfig @@ -48,10 +48,6 @@ config X86_SPEEDSTEP_CENTRINO If in doubt, say N. -config X86_SPEEDSTEP_CENTRINO_ACPI - bool - depends on X86_SPEEDSTEP_CENTRINO - config X86_ACPI_CPUFREQ tristate "ACPI Processor P-States driver" select CPU_FREQ_TABLE @@ -73,7 +69,7 @@ comment "shared options" config X86_ACPI_CPUFREQ_PROC_INTF bool "/proc/acpi/processor/../performance interface (deprecated)" depends on PROC_FS - depends on X86_ACPI_CPUFREQ || X86_SPEEDSTEP_CENTRINO_ACPI || X86_POWERNOW_K8_ACPI + depends on X86_ACPI_CPUFREQ || X86_POWERNOW_K8_ACPI help This enables the deprecated /proc/acpi/processor/../performance interface. While it is helpful for debugging, the generic, diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index fa984b53e7e..a67f87bf401 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -1163,3 +1163,10 @@ ENTRY(call_softirq) ret CFI_ENDPROC ENDPROC(call_softirq) + +KPROBE_ENTRY(ignore_sysret) + CFI_STARTPROC + mov $-ENOSYS,%eax + sysret + CFI_ENDPROC +ENDPROC(ignore_sysret) diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index d8bfe315471..1c6c6f72457 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -1492,6 +1492,7 @@ static void ack_lapic_irq (unsigned int irq) static void end_lapic_irq (unsigned int i) { /* nothing */ } static struct hw_interrupt_type lapic_irq_type __read_mostly = { + .name = "local-APIC", .typename = "local-APIC-edge", .startup = NULL, /* startup_irq() not used for IRQ0 */ .shutdown = NULL, /* shutdown_irq() not used for IRQ0 */ diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c index 3eaceac3248..39cb3fa83eb 100644 --- a/arch/x86_64/kernel/irq.c +++ b/arch/x86_64/kernel/irq.c @@ -144,17 +144,43 @@ void fixup_irqs(cpumask_t map) for (irq = 0; irq < NR_IRQS; irq++) { cpumask_t mask; + int break_affinity = 0; + int set_affinity = 1; + if (irq == 2) continue; + /* interrupt's are disabled at this point */ + spin_lock(&irq_desc[irq].lock); + + if (!irq_has_action(irq) || + cpus_equal(irq_desc[irq].affinity, map)) { + spin_unlock(&irq_desc[irq].lock); + continue; + } + cpus_and(mask, irq_desc[irq].affinity, map); - if (any_online_cpu(mask) == NR_CPUS) { - printk("Breaking affinity for irq %i\n", irq); + if (cpus_empty(mask)) { + break_affinity = 1; mask = map; } + + if (irq_desc[irq].chip->mask) + irq_desc[irq].chip->mask(irq); + if (irq_desc[irq].chip->set_affinity) irq_desc[irq].chip->set_affinity(irq, mask); - else if (irq_desc[irq].action && !(warned++)) + else if (!(warned++)) + set_affinity = 0; + + if (irq_desc[irq].chip->unmask) + irq_desc[irq].chip->unmask(irq); + + spin_unlock(&irq_desc[irq].lock); + + if (break_affinity && set_affinity) + printk("Broke affinity for irq %i\n", irq); + else if (!set_affinity) printk("Cannot set affinity for irq %i\n", irq); } diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c index a14375dd542..aa1d1599179 100644 --- a/arch/x86_64/kernel/mce.c +++ b/arch/x86_64/kernel/mce.c @@ -497,15 +497,17 @@ static ssize_t mce_read(struct file *filp, char __user *ubuf, size_t usize, loff for (i = 0; i < next; i++) { unsigned long start = jiffies; while (!mcelog.entry[i].finished) { - if (!time_before(jiffies, start + 2)) { + if (time_after_eq(jiffies, start + 2)) { memset(mcelog.entry + i,0, sizeof(struct mce)); - continue; + goto timeout; } cpu_relax(); } smp_rmb(); err |= copy_to_user(buf, mcelog.entry + i, sizeof(struct mce)); buf += sizeof(struct mce); + timeout: + ; } memset(mcelog.entry, 0, next * sizeof(struct mce)); diff --git a/arch/x86_64/kernel/pci-dma.c b/arch/x86_64/kernel/pci-dma.c index 651ccfb0669..90f6315d02d 100644 --- a/arch/x86_64/kernel/pci-dma.c +++ b/arch/x86_64/kernel/pci-dma.c @@ -22,8 +22,7 @@ EXPORT_SYMBOL(bad_dma_address); int iommu_bio_merge __read_mostly = 0; EXPORT_SYMBOL(iommu_bio_merge); -int iommu_sac_force __read_mostly = 0; -EXPORT_SYMBOL(iommu_sac_force); +static int iommu_sac_force __read_mostly = 0; int no_iommu __read_mostly; #ifdef CONFIG_IOMMU_DEBUG @@ -322,5 +321,17 @@ static int __init pci_iommu_init(void) return 0; } +#ifdef CONFIG_PCI +/* Many VIA bridges seem to corrupt data for DAC. Disable it here */ + +static __devinit void via_no_dac(struct pci_dev *dev) +{ + if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) { + printk(KERN_INFO "PCI: VIA PCI bridge detected. Disabling DAC.\n"); + forbid_dac = 1; + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac); +#endif /* Must execute after PCI subsystem */ fs_initcall(pci_iommu_init); diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index eb6524f3ac2..33ef718f8cb 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -846,6 +846,8 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c) c->x86_capability[2] = cpuid_edx(0x80860001); } + init_scattered_cpuid_features(c); + c->apicid = phys_pkg_id(0); /* @@ -931,7 +933,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov", "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx", - "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", NULL, + "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe", /* AMD-defined */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, @@ -947,10 +949,11 @@ static int show_cpuinfo(struct seq_file *m, void *v) NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* Other (Linux-defined) */ - "cxmmx", NULL, "cyrix_arr", "centaur_mcr", NULL, - "constant_tsc", NULL, NULL, - "up", NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr", + NULL, NULL, NULL, NULL, + "constant_tsc", "up", NULL, "arch_perfmon", + "pebs", "bts", NULL, "sync_rdtsc", + "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* Intel-defined (#2) */ @@ -961,7 +964,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) /* VIA/Cyrix/Centaur-defined */ NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en", - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, @@ -972,6 +975,12 @@ static int show_cpuinfo(struct seq_file *m, void *v) "osvw", "ibs", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* Auxiliary (Linux-defined) */ + "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }; static char *x86_power_flags[] = { "ts", /* temperature sensor */ diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 64379a80d76..1200aaac403 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -150,6 +150,8 @@ void pda_init(int cpu) char boot_exception_stacks[(N_EXCEPTION_STACKS - 1) * EXCEPTION_STKSZ + DEBUG_STKSZ] __attribute__((section(".bss.page_aligned"))); +extern asmlinkage void ignore_sysret(void); + /* May not be marked __init: used by software suspend */ void syscall_init(void) { @@ -160,6 +162,7 @@ void syscall_init(void) */ wrmsrl(MSR_STAR, ((u64)__USER32_CS)<<48 | ((u64)__KERNEL_CS)<<32); wrmsrl(MSR_LSTAR, system_call); + wrmsrl(MSR_CSTAR, ignore_sysret); #ifdef CONFIG_IA32_EMULATION syscall32_cpu_init (); diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index cb29fb96948..aac1c0be54c 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -465,13 +465,14 @@ static unsigned int die_nest_count; unsigned __kprobes long oops_begin(void) { - int cpu = smp_processor_id(); + int cpu; unsigned long flags; oops_enter(); /* racy, but better than risking deadlock. */ local_irq_save(flags); + cpu = smp_processor_id(); if (!spin_trylock(&die_lock)) { if (cpu == die_owner) /* nested oops. should stop eventually */; diff --git a/arch/x86_64/kernel/verify_cpu.S b/arch/x86_64/kernel/verify_cpu.S index e035f594819..45b6f8a975a 100644 --- a/arch/x86_64/kernel/verify_cpu.S +++ b/arch/x86_64/kernel/verify_cpu.S @@ -37,20 +37,6 @@ verify_cpu: pushl $0 # Kill any dangerous flags popfl - /* minimum CPUID flags for x86-64 as defined by AMD */ -#define M(x) (1<<(x)) -#define M2(a,b) M(a)|M(b) -#define M4(a,b,c,d) M(a)|M(b)|M(c)|M(d) - -#define SSE_MASK \ - (M2(X86_FEATURE_XMM,X86_FEATURE_XMM2)) -#define REQUIRED_MASK1 \ - (M4(X86_FEATURE_FPU,X86_FEATURE_PSE,X86_FEATURE_TSC,X86_FEATURE_MSR)|\ - M4(X86_FEATURE_PAE,X86_FEATURE_CX8,X86_FEATURE_PGE,X86_FEATURE_CMOV)|\ - M(X86_FEATURE_FXSR)) -#define REQUIRED_MASK2 \ - (M(X86_FEATURE_LM - 32)) - pushfl # standard way to check for cpuid popl %eax movl %eax,%ebx @@ -79,8 +65,8 @@ verify_cpu: verify_cpu_noamd: movl $0x1,%eax # Does the cpu have what it takes cpuid - andl $REQUIRED_MASK1,%edx - xorl $REQUIRED_MASK1,%edx + andl $REQUIRED_MASK0,%edx + xorl $REQUIRED_MASK0,%edx jnz verify_cpu_no_longmode movl $0x80000000,%eax # See if extended cpuid is implemented @@ -90,8 +76,8 @@ verify_cpu_noamd: movl $0x80000001,%eax # Does the cpu have what it takes cpuid - andl $REQUIRED_MASK2,%edx - xorl $REQUIRED_MASK2,%edx + andl $REQUIRED_MASK1,%edx + xorl $REQUIRED_MASK1,%edx jnz verify_cpu_no_longmode verify_cpu_sse_test: |