| /* |
| * Defines x86 CPU feature bits |
| */ |
| #ifndef _ASM_X86_CPUFEATURE_H |
| #define _ASM_X86_CPUFEATURE_H |
| |
| #include <asm/required-features.h> |
| |
| #define NCAPINTS 8 /* N 32-bit words worth of info */ |
| |
| /* 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, RDMSR, WRMSR */ |
| #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 instruction (FCMOVCC and FCOMI too if FPU present) */ |
| #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) /* Supports the CLFLUSH instruction */ |
| #define X86_FEATURE_DS (0*32+21) /* 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 and FXRSTOR instructions (fast save and restore */ |
| /* of FPU context), and CR4.OSFXSR available */ |
| #define X86_FEATURE_XMM (0*32+25) /* Streaming SIMD Extensions */ |
| #define X86_FEATURE_XMM2 (0*32+26) /* Streaming SIMD Extensions-2 */ |
| #define X86_FEATURE_SELFSNOOP (0*32+27) /* CPU self snoop */ |
| #define X86_FEATURE_HT (0*32+28) /* Hyper-Threading */ |
| #define X86_FEATURE_ACC (0*32+29) /* Automatic clock control */ |
| #define X86_FEATURE_IA64 (0*32+30) /* IA-64 processor */ |
| |
| /* 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_GBPAGES (1*32+26) /* 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_PEBS (3*32+12) /* Precise-Event Based Sampling */ |
| #define X86_FEATURE_BTS (3*32+13) /* Branch Trace Store */ |
| /* 14 free */ |
| /* 15 free */ |
| #define X86_FEATURE_REP_GOOD (3*32+16) /* rep microcode works well on this CPU */ |
| #define X86_FEATURE_MFENCE_RDTSC (3*32+17) /* Mfence synchronizes RDTSC */ |
| #define X86_FEATURE_LFENCE_RDTSC (3*32+18) /* Lfence synchronizes RDTSC */ |
| |
| /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */ |
| #define X86_FEATURE_XMM3 (4*32+ 0) /* Streaming SIMD Extensions-3 */ |
| #define X86_FEATURE_MWAIT (4*32+ 3) /* Monitor/Mwait support */ |
| #define X86_FEATURE_DSCPL (4*32+ 4) /* CPL Qualified Debug Store */ |
| #define X86_FEATURE_EST (4*32+ 7) /* Enhanced SpeedStep */ |
| #define X86_FEATURE_TM2 (4*32+ 8) /* Thermal Monitor 2 */ |
| #define X86_FEATURE_CID (4*32+10) /* Context ID */ |
| #define X86_FEATURE_CX16 (4*32+13) /* CMPXCHG16B */ |
| #define X86_FEATURE_XTPR (4*32+14) /* Send Task Priority Messages */ |
| #define X86_FEATURE_DCA (4*32+18) /* Direct Cache Access */ |
| |
| /* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */ |
| #define X86_FEATURE_XSTORE (5*32+ 2) /* on-CPU RNG present (xstore insn) */ |
| #define X86_FEATURE_XSTORE_EN (5*32+ 3) /* on-CPU RNG enabled */ |
| #define X86_FEATURE_XCRYPT (5*32+ 6) /* on-CPU crypto (xcrypt insn) */ |
| #define X86_FEATURE_XCRYPT_EN (5*32+ 7) /* 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 */ |
| |
| /* |
| * 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 */ |
| |
| #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, cleared_cpu_caps); \ |
| } while (0) |
| #define setup_force_cpu_cap(bit) do { \ |
| set_cpu_cap(&boot_cpu_data, bit); \ |
| clear_bit(bit, 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) |
| |
| #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 */ |
