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Diffstat (limited to 'arch/x86/include/asm/cpufeature.h')
| -rw-r--r-- | arch/x86/include/asm/cpufeature.h | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h new file mode 100644 index 00000000000..cfdf8c2c5c3 --- /dev/null +++ b/arch/x86/include/asm/cpufeature.h @@ -0,0 +1,271 @@ +/* + * Defines x86 CPU feature bits + */ +#ifndef _ASM_X86_CPUFEATURE_H +#define _ASM_X86_CPUFEATURE_H + +#include <asm/required-features.h> + +#define NCAPINTS 9 /* N 32-bit words worth of info */ + +/* + * Note: If the comment begins with a quoted string, that string is used + * in /proc/cpuinfo instead of the macro name. If the string is "", + * this feature bit is not displayed in /proc/cpuinfo at all. + */ + +/* Intel-defined CPU features, CPUID level 0x00000001 (edx), word 0 */ +#define X86_FEATURE_FPU (0*32+ 0) /* Onboard FPU */ +#define X86_FEATURE_VME (0*32+ 1) /* Virtual Mode Extensions */ +#define X86_FEATURE_DE (0*32+ 2) /* Debugging Extensions */ +#define X86_FEATURE_PSE (0*32+ 3) /* Page Size Extensions */ +#define X86_FEATURE_TSC (0*32+ 4) /* Time Stamp Counter */ +#define X86_FEATURE_MSR (0*32+ 5) /* Model-Specific Registers */ +#define X86_FEATURE_PAE (0*32+ 6) /* Physical Address Extensions */ +#define X86_FEATURE_MCE (0*32+ 7) /* Machine Check Architecture */ +#define X86_FEATURE_CX8 (0*32+ 8) /* CMPXCHG8 instruction */ +#define X86_FEATURE_APIC (0*32+ 9) /* Onboard APIC */ +#define X86_FEATURE_SEP (0*32+11) /* SYSENTER/SYSEXIT */ +#define X86_FEATURE_MTRR (0*32+12) /* Memory Type Range Registers */ +#define X86_FEATURE_PGE (0*32+13) /* Page Global Enable */ +#define X86_FEATURE_MCA (0*32+14) /* Machine Check Architecture */ +#define X86_FEATURE_CMOV (0*32+15) /* CMOV instructions */ + /* (plus FCMOVcc, FCOMI with FPU) */ +#define X86_FEATURE_PAT (0*32+16) /* Page Attribute Table */ +#define X86_FEATURE_PSE36 (0*32+17) /* 36-bit PSEs */ +#define X86_FEATURE_PN (0*32+18) /* Processor serial number */ +#define X86_FEATURE_CLFLSH (0*32+19) /* "clflush" CLFLUSH instruction */ +#define X86_FEATURE_DS (0*32+21) /* "dts" Debug Store */ +#define X86_FEATURE_ACPI (0*32+22) /* ACPI via MSR */ +#define X86_FEATURE_MMX (0*32+23) /* Multimedia Extensions */ +#define X86_FEATURE_FXSR (0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */ +#define X86_FEATURE_XMM (0*32+25) /* "sse" */ +#define X86_FEATURE_XMM2 (0*32+26) /* "sse2" */ +#define X86_FEATURE_SELFSNOOP (0*32+27) /* "ss" CPU self snoop */ +#define X86_FEATURE_HT (0*32+28) /* Hyper-Threading */ +#define X86_FEATURE_ACC (0*32+29) /* "tm" Automatic clock control */ +#define X86_FEATURE_IA64 (0*32+30) /* IA-64 processor */ +#define X86_FEATURE_PBE (0*32+31) /* Pending Break Enable */ + +/* AMD-defined CPU features, CPUID level 0x80000001, word 1 */ +/* Don't duplicate feature flags which are redundant with Intel! */ +#define X86_FEATURE_SYSCALL (1*32+11) /* SYSCALL/SYSRET */ +#define X86_FEATURE_MP (1*32+19) /* MP Capable. */ +#define X86_FEATURE_NX (1*32+20) /* Execute Disable */ +#define X86_FEATURE_MMXEXT (1*32+22) /* AMD MMX extensions */ +#define X86_FEATURE_FXSR_OPT (1*32+25) /* FXSAVE/FXRSTOR optimizations */ +#define X86_FEATURE_GBPAGES (1*32+26) /* "pdpe1gb" GB pages */ +#define X86_FEATURE_RDTSCP (1*32+27) /* RDTSCP */ +#define X86_FEATURE_LM (1*32+29) /* Long Mode (x86-64) */ +#define X86_FEATURE_3DNOWEXT (1*32+30) /* AMD 3DNow! extensions */ +#define X86_FEATURE_3DNOW (1*32+31) /* 3DNow! */ + +/* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */ +#define X86_FEATURE_RECOVERY (2*32+ 0) /* CPU in recovery mode */ +#define X86_FEATURE_LONGRUN (2*32+ 1) /* Longrun power control */ +#define X86_FEATURE_LRTI (2*32+ 3) /* LongRun table interface */ + +/* Other features, Linux-defined mapping, word 3 */ +/* This range is used for feature bits which conflict or are synthesized */ +#define X86_FEATURE_CXMMX (3*32+ 0) /* Cyrix MMX extensions */ +#define X86_FEATURE_K6_MTRR (3*32+ 1) /* AMD K6 nonstandard MTRRs */ +#define X86_FEATURE_CYRIX_ARR (3*32+ 2) /* Cyrix ARRs (= MTRRs) */ +#define X86_FEATURE_CENTAUR_MCR (3*32+ 3) /* Centaur MCRs (= MTRRs) */ +/* cpu types for specific tunings: */ +#define X86_FEATURE_K8 (3*32+ 4) /* "" Opteron, Athlon64 */ +#define X86_FEATURE_K7 (3*32+ 5) /* "" Athlon */ +#define X86_FEATURE_P3 (3*32+ 6) /* "" P3 */ +#define X86_FEATURE_P4 (3*32+ 7) /* "" P4 */ +#define X86_FEATURE_CONSTANT_TSC (3*32+ 8) /* TSC ticks at a constant rate */ +#define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */ +#define X86_FEATURE_FXSAVE_LEAK (3*32+10) /* "" FXSAVE leaks FOP/FIP/FOP */ +#define X86_FEATURE_ARCH_PERFMON (3*32+11) /* Intel Architectural PerfMon */ +#define X86_FEATURE_NOPL (3*32+20) /* The NOPL (0F 1F) instructions */ +#define X86_FEATURE_PEBS (3*32+12) /* Precise-Event Based Sampling */ +#define X86_FEATURE_BTS (3*32+13) /* Branch Trace Store */ +#define X86_FEATURE_SYSCALL32 (3*32+14) /* "" syscall in ia32 userspace */ +#define X86_FEATURE_SYSENTER32 (3*32+15) /* "" sysenter in ia32 userspace */ +#define X86_FEATURE_REP_GOOD (3*32+16) /* rep microcode works well */ +#define X86_FEATURE_MFENCE_RDTSC (3*32+17) /* "" Mfence synchronizes RDTSC */ +#define X86_FEATURE_LFENCE_RDTSC (3*32+18) /* "" Lfence synchronizes RDTSC */ +#define X86_FEATURE_11AP (3*32+19) /* "" Bad local APIC aka 11AP */ +#define X86_FEATURE_NOPL (3*32+20) /* The NOPL (0F 1F) instructions */ +#define X86_FEATURE_AMDC1E (3*32+21) /* AMD C1E detected */ +#define X86_FEATURE_XTOPOLOGY (3*32+22) /* cpu topology enum extensions */ + +/* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */ +#define X86_FEATURE_XMM3 (4*32+ 0) /* "pni" SSE-3 */ +#define X86_FEATURE_PCLMULQDQ (4*32+ 1) /* PCLMULQDQ instruction */ +#define X86_FEATURE_DTES64 (4*32+ 2) /* 64-bit Debug Store */ +#define X86_FEATURE_MWAIT (4*32+ 3) /* "monitor" Monitor/Mwait support */ +#define X86_FEATURE_DSCPL (4*32+ 4) /* "ds_cpl" CPL Qual. Debug Store */ +#define X86_FEATURE_VMX (4*32+ 5) /* Hardware virtualization */ +#define X86_FEATURE_SMX (4*32+ 6) /* Safer mode */ +#define X86_FEATURE_EST (4*32+ 7) /* Enhanced SpeedStep */ +#define X86_FEATURE_TM2 (4*32+ 8) /* Thermal Monitor 2 */ +#define X86_FEATURE_SSSE3 (4*32+ 9) /* Supplemental SSE-3 */ +#define X86_FEATURE_CID (4*32+10) /* Context ID */ +#define X86_FEATURE_FMA (4*32+12) /* Fused multiply-add */ +#define X86_FEATURE_CX16 (4*32+13) /* CMPXCHG16B */ +#define X86_FEATURE_XTPR (4*32+14) /* Send Task Priority Messages */ +#define X86_FEATURE_PDCM (4*32+15) /* Performance Capabilities */ +#define X86_FEATURE_DCA (4*32+18) /* Direct Cache Access */ +#define X86_FEATURE_XMM4_1 (4*32+19) /* "sse4_1" SSE-4.1 */ +#define X86_FEATURE_XMM4_2 (4*32+20) /* "sse4_2" SSE-4.2 */ +#define X86_FEATURE_X2APIC (4*32+21) /* x2APIC */ +#define X86_FEATURE_AES (4*32+25) /* AES instructions */ +#define X86_FEATURE_XSAVE (4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */ +#define X86_FEATURE_OSXSAVE (4*32+27) /* "" XSAVE enabled in the OS */ +#define X86_FEATURE_AVX (4*32+28) /* Advanced Vector Extensions */ + +/* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */ +#define X86_FEATURE_XSTORE (5*32+ 2) /* "rng" RNG present (xstore) */ +#define X86_FEATURE_XSTORE_EN (5*32+ 3) /* "rng_en" RNG enabled */ +#define X86_FEATURE_XCRYPT (5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */ +#define X86_FEATURE_XCRYPT_EN (5*32+ 7) /* "ace_en" on-CPU crypto enabled */ +#define X86_FEATURE_ACE2 (5*32+ 8) /* Advanced Cryptography Engine v2 */ +#define X86_FEATURE_ACE2_EN (5*32+ 9) /* ACE v2 enabled */ +#define X86_FEATURE_PHE (5*32+10) /* PadLock Hash Engine */ +#define X86_FEATURE_PHE_EN (5*32+11) /* PHE enabled */ +#define X86_FEATURE_PMM (5*32+12) /* PadLock Montgomery Multiplier */ +#define X86_FEATURE_PMM_EN (5*32+13) /* PMM enabled */ + +/* More extended AMD flags: CPUID level 0x80000001, ecx, word 6 */ +#define X86_FEATURE_LAHF_LM (6*32+ 0) /* LAHF/SAHF in long mode */ +#define X86_FEATURE_CMP_LEGACY (6*32+ 1) /* If yes HyperThreading not valid */ +#define X86_FEATURE_SVM (6*32+ 2) /* Secure virtual machine */ +#define X86_FEATURE_EXTAPIC (6*32+ 3) /* Extended APIC space */ +#define X86_FEATURE_CR8_LEGACY (6*32+ 4) /* CR8 in 32-bit mode */ +#define X86_FEATURE_ABM (6*32+ 5) /* Advanced bit manipulation */ +#define X86_FEATURE_SSE4A (6*32+ 6) /* SSE-4A */ +#define X86_FEATURE_MISALIGNSSE (6*32+ 7) /* Misaligned SSE mode */ +#define X86_FEATURE_3DNOWPREFETCH (6*32+ 8) /* 3DNow prefetch instructions */ +#define X86_FEATURE_OSVW (6*32+ 9) /* OS Visible Workaround */ +#define X86_FEATURE_IBS (6*32+10) /* Instruction Based Sampling */ +#define X86_FEATURE_SSE5 (6*32+11) /* SSE-5 */ +#define X86_FEATURE_SKINIT (6*32+12) /* SKINIT/STGI instructions */ +#define X86_FEATURE_WDT (6*32+13) /* Watchdog timer */ + +/* + * Auxiliary flags: Linux defined - For features scattered in various + * CPUID levels like 0x6, 0xA etc + */ +#define X86_FEATURE_IDA (7*32+ 0) /* Intel Dynamic Acceleration */ + +/* Virtualization flags: Linux defined */ +#define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */ +#define X86_FEATURE_VNMI (8*32+ 1) /* Intel Virtual NMI */ +#define X86_FEATURE_FLEXPRIORITY (8*32+ 2) /* Intel FlexPriority */ +#define X86_FEATURE_EPT (8*32+ 3) /* Intel Extended Page Table */ +#define X86_FEATURE_VPID (8*32+ 4) /* Intel Virtual Processor ID */ + +#if defined(__KERNEL__) && !defined(__ASSEMBLY__) + +#include <linux/bitops.h> + +extern const char * const x86_cap_flags[NCAPINTS*32]; +extern const char * const x86_power_flags[32]; + +#define test_cpu_cap(c, bit) \ + test_bit(bit, (unsigned long *)((c)->x86_capability)) + +#define cpu_has(c, bit) \ + (__builtin_constant_p(bit) && \ + ( (((bit)>>5)==0 && (1UL<<((bit)&31) & REQUIRED_MASK0)) || \ + (((bit)>>5)==1 && (1UL<<((bit)&31) & REQUIRED_MASK1)) || \ + (((bit)>>5)==2 && (1UL<<((bit)&31) & REQUIRED_MASK2)) || \ + (((bit)>>5)==3 && (1UL<<((bit)&31) & REQUIRED_MASK3)) || \ + (((bit)>>5)==4 && (1UL<<((bit)&31) & REQUIRED_MASK4)) || \ + (((bit)>>5)==5 && (1UL<<((bit)&31) & REQUIRED_MASK5)) || \ + (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) || \ + (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) ) \ + ? 1 : \ + test_cpu_cap(c, bit)) + +#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit) + +#define set_cpu_cap(c, bit) set_bit(bit, (unsigned long *)((c)->x86_capability)) +#define clear_cpu_cap(c, bit) clear_bit(bit, (unsigned long *)((c)->x86_capability)) +#define setup_clear_cpu_cap(bit) do { \ + clear_cpu_cap(&boot_cpu_data, bit); \ + set_bit(bit, (unsigned long *)cleared_cpu_caps); \ +} while (0) +#define setup_force_cpu_cap(bit) do { \ + set_cpu_cap(&boot_cpu_data, bit); \ + clear_bit(bit, (unsigned long *)cleared_cpu_caps); \ +} while (0) + +#define cpu_has_fpu boot_cpu_has(X86_FEATURE_FPU) +#define cpu_has_vme boot_cpu_has(X86_FEATURE_VME) +#define cpu_has_de boot_cpu_has(X86_FEATURE_DE) +#define cpu_has_pse boot_cpu_has(X86_FEATURE_PSE) +#define cpu_has_tsc boot_cpu_has(X86_FEATURE_TSC) +#define cpu_has_pae boot_cpu_has(X86_FEATURE_PAE) +#define cpu_has_pge boot_cpu_has(X86_FEATURE_PGE) +#define cpu_has_apic boot_cpu_has(X86_FEATURE_APIC) +#define cpu_has_sep boot_cpu_has(X86_FEATURE_SEP) +#define cpu_has_mtrr boot_cpu_has(X86_FEATURE_MTRR) +#define cpu_has_mmx boot_cpu_has(X86_FEATURE_MMX) +#define cpu_has_fxsr boot_cpu_has(X86_FEATURE_FXSR) +#define cpu_has_xmm boot_cpu_has(X86_FEATURE_XMM) +#define cpu_has_xmm2 boot_cpu_has(X86_FEATURE_XMM2) +#define cpu_has_xmm3 boot_cpu_has(X86_FEATURE_XMM3) +#define cpu_has_ht boot_cpu_has(X86_FEATURE_HT) +#define cpu_has_mp boot_cpu_has(X86_FEATURE_MP) +#define cpu_has_nx boot_cpu_has(X86_FEATURE_NX) +#define cpu_has_k6_mtrr boot_cpu_has(X86_FEATURE_K6_MTRR) +#define cpu_has_cyrix_arr boot_cpu_has(X86_FEATURE_CYRIX_ARR) +#define cpu_has_centaur_mcr boot_cpu_has(X86_FEATURE_CENTAUR_MCR) +#define cpu_has_xstore boot_cpu_has(X86_FEATURE_XSTORE) +#define cpu_has_xstore_enabled boot_cpu_has(X86_FEATURE_XSTORE_EN) +#define cpu_has_xcrypt boot_cpu_has(X86_FEATURE_XCRYPT) +#define cpu_has_xcrypt_enabled boot_cpu_has(X86_FEATURE_XCRYPT_EN) +#define cpu_has_ace2 boot_cpu_has(X86_FEATURE_ACE2) +#define cpu_has_ace2_enabled boot_cpu_has(X86_FEATURE_ACE2_EN) +#define cpu_has_phe boot_cpu_has(X86_FEATURE_PHE) +#define cpu_has_phe_enabled boot_cpu_has(X86_FEATURE_PHE_EN) +#define cpu_has_pmm boot_cpu_has(X86_FEATURE_PMM) +#define cpu_has_pmm_enabled boot_cpu_has(X86_FEATURE_PMM_EN) +#define cpu_has_ds boot_cpu_has(X86_FEATURE_DS) +#define cpu_has_pebs boot_cpu_has(X86_FEATURE_PEBS) +#define cpu_has_clflush boot_cpu_has(X86_FEATURE_CLFLSH) +#define cpu_has_bts boot_cpu_has(X86_FEATURE_BTS) +#define cpu_has_gbpages boot_cpu_has(X86_FEATURE_GBPAGES) +#define cpu_has_arch_perfmon boot_cpu_has(X86_FEATURE_ARCH_PERFMON) +#define cpu_has_pat boot_cpu_has(X86_FEATURE_PAT) +#define cpu_has_xmm4_1 boot_cpu_has(X86_FEATURE_XMM4_1) +#define cpu_has_xmm4_2 boot_cpu_has(X86_FEATURE_XMM4_2) +#define cpu_has_x2apic boot_cpu_has(X86_FEATURE_X2APIC) +#define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE) + +#if defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_64) +# define cpu_has_invlpg 1 +#else +# define cpu_has_invlpg (boot_cpu_data.x86 > 3) +#endif + +#ifdef CONFIG_X86_64 + +#undef cpu_has_vme +#define cpu_has_vme 0 + +#undef cpu_has_pae +#define cpu_has_pae ___BUG___ + +#undef cpu_has_mp +#define cpu_has_mp 1 + +#undef cpu_has_k6_mtrr +#define cpu_has_k6_mtrr 0 + +#undef cpu_has_cyrix_arr +#define cpu_has_cyrix_arr 0 + +#undef cpu_has_centaur_mcr +#define cpu_has_centaur_mcr 0 + +#endif /* CONFIG_X86_64 */ + +#endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */ + +#endif /* _ASM_X86_CPUFEATURE_H */ |