diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2016-11-16 14:19:34 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-11-16 14:19:34 +0100 |
| commit | 7ce7f35b33eb42b6aa4cf176fa34372b21b8472b (patch) | |
| tree | 12f3027003f1d7cce30f838265e4fab2d52c6cef /arch/x86/kernel | |
| parent | f410770293a1fbc08906474c24104a7a11943eb6 (diff) | |
| parent | 47bdf3378d62a627cfb8a54e1180c08d67078b61 (diff) | |
| download | op-kernel-dev-7ce7f35b33eb42b6aa4cf176fa34372b21b8472b.zip op-kernel-dev-7ce7f35b33eb42b6aa4cf176fa34372b21b8472b.tar.gz | |
Merge branch 'x86/cpufeature' into x86/cache
Resolve the cpu/scattered conflict.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/apm_32.c | 5 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/microcode/amd.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/scattered.c | 63 | ||||
| -rw-r--r-- | arch/x86/kernel/cpuid.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/mcount_64.S | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/quirks.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/setup.c | 7 | ||||
| -rw-r--r-- | arch/x86/kernel/unwind_guess.c | 9 |
9 files changed, 64 insertions, 33 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 8a5abaa..931ced8 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -454,6 +454,7 @@ static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); + acpi_penalize_sci_irq(bus_irq, trigger, polarity); /* * stash over-ride to indicate we've been here diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index c7364bd..51287cd 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -1042,8 +1042,11 @@ static int apm_get_power_status(u_short *status, u_short *bat, u_short *life) if (apm_info.get_power_status_broken) return APM_32_UNSUPPORTED; - if (apm_bios_call(&call)) + if (apm_bios_call(&call)) { + if (!call.err) + return APM_NO_ERROR; return call.err; + } *status = call.ebx; *bat = call.ecx; if (apm_info.get_power_status_swabinminutes) { diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c index 620ab06..017bda1 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -429,7 +429,7 @@ int __init save_microcode_in_initrd_amd(void) * We need the physical address of the container for both bitness since * boot_params.hdr.ramdisk_image is a physical address. */ - cont = __pa(container); + cont = __pa_nodebug(container); cont_va = container; #endif diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c index 49fb680..d979406 100644 --- a/arch/x86/kernel/cpu/scattered.c +++ b/arch/x86/kernel/cpu/scattered.c @@ -17,11 +17,20 @@ struct cpuid_bit { u32 sub_leaf; }; -enum cpuid_regs { - CR_EAX = 0, - CR_ECX, - CR_EDX, - CR_EBX +/* Please keep the leaf sorted by cpuid_bit.level for faster search. */ +static const struct cpuid_bit cpuid_bits[] = { + { X86_FEATURE_APERFMPERF, CPUID_ECX, 0, 0x00000006, 0 }, + { X86_FEATURE_EPB, CPUID_ECX, 3, 0x00000006, 0 }, + { X86_FEATURE_INTEL_PT, CPUID_EBX, 25, 0x00000007, 0 }, + { X86_FEATURE_AVX512_4VNNIW, CPUID_EDX, 2, 0x00000007, 0 }, + { X86_FEATURE_AVX512_4FMAPS, CPUID_EDX, 3, 0x00000007, 0 }, + { X86_FEATURE_CAT_L3, CPUID_EBX, 1, 0x00000010, 0 }, + { X86_FEATURE_CAT_L2, CPUID_EBX, 2, 0x00000010, 0 }, + { X86_FEATURE_CDP_L3, CPUID_ECX, 2, 0x00000010, 1 }, + { X86_FEATURE_HW_PSTATE, CPUID_EDX, 7, 0x80000007, 0 }, + { X86_FEATURE_CPB, CPUID_EDX, 9, 0x80000007, 0 }, + { X86_FEATURE_PROC_FEEDBACK, CPUID_EDX, 11, 0x80000007, 0 }, + { 0, 0, 0, 0, 0 } }; void init_scattered_cpuid_features(struct cpuinfo_x86 *c) @@ -30,21 +39,6 @@ void init_scattered_cpuid_features(struct cpuinfo_x86 *c) u32 regs[4]; const struct cpuid_bit *cb; - static const struct cpuid_bit cpuid_bits[] = { - { X86_FEATURE_INTEL_PT, CR_EBX,25, 0x00000007, 0 }, - { X86_FEATURE_AVX512_4VNNIW, CR_EDX, 2, 0x00000007, 0 }, - { X86_FEATURE_AVX512_4FMAPS, CR_EDX, 3, 0x00000007, 0 }, - { X86_FEATURE_APERFMPERF, CR_ECX, 0, 0x00000006, 0 }, - { X86_FEATURE_EPB, CR_ECX, 3, 0x00000006, 0 }, - { X86_FEATURE_CAT_L3, CR_EBX, 1, 0x00000010, 0 }, - { X86_FEATURE_CAT_L2, CR_EBX, 2, 0x00000010, 0 }, - { X86_FEATURE_CDP_L3, CR_ECX, 2, 0x00000010, 1 }, - { X86_FEATURE_HW_PSTATE, CR_EDX, 7, 0x80000007, 0 }, - { X86_FEATURE_CPB, CR_EDX, 9, 0x80000007, 0 }, - { X86_FEATURE_PROC_FEEDBACK, CR_EDX,11, 0x80000007, 0 }, - { 0, 0, 0, 0, 0 } - }; - for (cb = cpuid_bits; cb->feature; cb++) { /* Verify that the level is valid */ @@ -53,10 +47,35 @@ void init_scattered_cpuid_features(struct cpuinfo_x86 *c) max_level > (cb->level | 0xffff)) continue; - cpuid_count(cb->level, cb->sub_leaf, ®s[CR_EAX], - ®s[CR_EBX], ®s[CR_ECX], ®s[CR_EDX]); + cpuid_count(cb->level, cb->sub_leaf, ®s[CPUID_EAX], + ®s[CPUID_EBX], ®s[CPUID_ECX], + ®s[CPUID_EDX]); if (regs[cb->reg] & (1 << cb->bit)) set_cpu_cap(c, cb->feature); } } + +u32 get_scattered_cpuid_leaf(unsigned int level, unsigned int sub_leaf, + enum cpuid_regs_idx reg) +{ + const struct cpuid_bit *cb; + u32 cpuid_val = 0; + + for (cb = cpuid_bits; cb->feature; cb++) { + + if (level > cb->level) + continue; + + if (level < cb->level) + break; + + if (reg == cb->reg && sub_leaf == cb->sub_leaf) { + if (cpu_has(&boot_cpu_data, cb->feature)) + cpuid_val |= BIT(cb->bit); + } + } + + return cpuid_val; +} +EXPORT_SYMBOL_GPL(get_scattered_cpuid_leaf); diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c index 2836de3..9095c80 100644 --- a/arch/x86/kernel/cpuid.c +++ b/arch/x86/kernel/cpuid.c @@ -46,10 +46,6 @@ static struct class *cpuid_class; -struct cpuid_regs { - u32 eax, ebx, ecx, edx; -}; - static void cpuid_smp_cpuid(void *cmd_block) { struct cpuid_regs *cmd = (struct cpuid_regs *)cmd_block; diff --git a/arch/x86/kernel/mcount_64.S b/arch/x86/kernel/mcount_64.S index efe73aa..7b0d3da 100644 --- a/arch/x86/kernel/mcount_64.S +++ b/arch/x86/kernel/mcount_64.S @@ -18,8 +18,10 @@ #ifdef CC_USING_FENTRY # define function_hook __fentry__ +EXPORT_SYMBOL(__fentry__) #else # define function_hook mcount +EXPORT_SYMBOL(mcount) #endif /* All cases save the original rbp (8 bytes) */ @@ -295,7 +297,6 @@ trace: jmp fgraph_trace END(function_hook) #endif /* CONFIG_DYNAMIC_FTRACE */ -EXPORT_SYMBOL(function_hook) #endif /* CONFIG_FUNCTION_TRACER */ #ifdef CONFIG_FUNCTION_GRAPH_TRACER diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c index 51402a7..0bee04d 100644 --- a/arch/x86/kernel/quirks.c +++ b/arch/x86/kernel/quirks.c @@ -625,8 +625,6 @@ static void amd_disable_seq_and_redirect_scrub(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F3, amd_disable_seq_and_redirect_scrub); -#endif - #if defined(CONFIG_X86_64) && defined(CONFIG_X86_MCE) #include <linux/jump_label.h> #include <asm/string_64.h> @@ -657,3 +655,4 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2fc0, quirk_intel_brickland_xeon_ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, quirk_intel_brickland_xeon_ras_cap); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2083, quirk_intel_purley_xeon_ras_cap); #endif +#endif diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index bbfbca5..9c337b0 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1221,11 +1221,16 @@ void __init setup_arch(char **cmdline_p) */ get_smp_config(); + /* + * Systems w/o ACPI and mptables might not have it mapped the local + * APIC yet, but prefill_possible_map() might need to access it. + */ + init_apic_mappings(); + prefill_possible_map(); init_cpu_to_node(); - init_apic_mappings(); io_apic_init_mappings(); kvm_guest_init(); diff --git a/arch/x86/kernel/unwind_guess.c b/arch/x86/kernel/unwind_guess.c index 9298993..2d721e5 100644 --- a/arch/x86/kernel/unwind_guess.c +++ b/arch/x86/kernel/unwind_guess.c @@ -47,7 +47,14 @@ void __unwind_start(struct unwind_state *state, struct task_struct *task, get_stack_info(first_frame, state->task, &state->stack_info, &state->stack_mask); - if (!__kernel_text_address(*first_frame)) + /* + * The caller can provide the address of the first frame directly + * (first_frame) or indirectly (regs->sp) to indicate which stack frame + * to start unwinding at. Skip ahead until we reach it. + */ + if (!unwind_done(state) && + (!on_stack(&state->stack_info, first_frame, sizeof(long)) || + !__kernel_text_address(*first_frame))) unwind_next_frame(state); } EXPORT_SYMBOL_GPL(__unwind_start); |
