projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 7b11fb51 PA |
1 | /* |
| 2 | * Defines x86 CPU feature bits | |
| 3 | */ | |
| 4 | #ifndef _ASM_X86_CPUFEATURE_H | |
| 5 | #define _ASM_X86_CPUFEATURE_H | |
| 6 | ||
| 7 | #ifndef __ASSEMBLY__ | |
| 8 | #include <linux/bitops.h> | |
| 96a388de | 9 | #endif |
| 7b11fb51 PA |
10 | #include <asm/required-features.h> |
| 11 | ||
| 12 | #define NCAPINTS 8 /* N 32-bit words worth of info */ | |
| 13 | ||
| 14 | /* Intel-defined CPU features, CPUID level 0x00000001 (edx), word 0 */ | |
| 15 | #define X86_FEATURE_FPU (0*32+ 0) /* Onboard FPU */ | |
| 16 | #define X86_FEATURE_VME (0*32+ 1) /* Virtual Mode Extensions */ | |
| 17 | #define X86_FEATURE_DE (0*32+ 2) /* Debugging Extensions */ | |
| 18 | #define X86_FEATURE_PSE (0*32+ 3) /* Page Size Extensions */ | |
| 19 | #define X86_FEATURE_TSC (0*32+ 4) /* Time Stamp Counter */ | |
| 20 | #define X86_FEATURE_MSR (0*32+ 5) /* Model-Specific Registers, RDMSR, WRMSR */ | |
| 21 | #define X86_FEATURE_PAE (0*32+ 6) /* Physical Address Extensions */ | |
| 22 | #define X86_FEATURE_MCE (0*32+ 7) /* Machine Check Architecture */ | |
| 23 | #define X86_FEATURE_CX8 (0*32+ 8) /* CMPXCHG8 instruction */ | |
| 24 | #define X86_FEATURE_APIC (0*32+ 9) /* Onboard APIC */ | |
| 25 | #define X86_FEATURE_SEP (0*32+11) /* SYSENTER/SYSEXIT */ | |
| 26 | #define X86_FEATURE_MTRR (0*32+12) /* Memory Type Range Registers */ | |
| 27 | #define X86_FEATURE_PGE (0*32+13) /* Page Global Enable */ | |
| 28 | #define X86_FEATURE_MCA (0*32+14) /* Machine Check Architecture */ | |
| 29 | #define X86_FEATURE_CMOV (0*32+15) /* CMOV instruction (FCMOVCC and FCOMI too if FPU present) */ | |
| 30 | #define X86_FEATURE_PAT (0*32+16) /* Page Attribute Table */ | |
| 31 | #define X86_FEATURE_PSE36 (0*32+17) /* 36-bit PSEs */ | |
| 32 | #define X86_FEATURE_PN (0*32+18) /* Processor serial number */ | |
| 33 | #define X86_FEATURE_CLFLSH (0*32+19) /* Supports the CLFLUSH instruction */ | |
| 34 | #define X86_FEATURE_DS (0*32+21) /* Debug Store */ | |
| 35 | #define X86_FEATURE_ACPI (0*32+22) /* ACPI via MSR */ | |
| 36 | #define X86_FEATURE_MMX (0*32+23) /* Multimedia Extensions */ | |
| 37 | #define X86_FEATURE_FXSR (0*32+24) /* FXSAVE and FXRSTOR instructions (fast save and restore */ | |
| 38 | /* of FPU context), and CR4.OSFXSR available */ | |
| 39 | #define X86_FEATURE_XMM (0*32+25) /* Streaming SIMD Extensions */ | |
| 40 | #define X86_FEATURE_XMM2 (0*32+26) /* Streaming SIMD Extensions-2 */ | |
| 41 | #define X86_FEATURE_SELFSNOOP (0*32+27) /* CPU self snoop */ | |
| 42 | #define X86_FEATURE_HT (0*32+28) /* Hyper-Threading */ | |
| 43 | #define X86_FEATURE_ACC (0*32+29) /* Automatic clock control */ | |
| 44 | #define X86_FEATURE_IA64 (0*32+30) /* IA-64 processor */ | |
| 45 | ||
| 46 | /* AMD-defined CPU features, CPUID level 0x80000001, word 1 */ | |
| 47 | /* Don't duplicate feature flags which are redundant with Intel! */ | |
| 48 | #define X86_FEATURE_SYSCALL (1*32+11) /* SYSCALL/SYSRET */ | |
| 49 | #define X86_FEATURE_MP (1*32+19) /* MP Capable. */ | |
| 50 | #define X86_FEATURE_NX (1*32+20) /* Execute Disable */ | |
| 51 | #define X86_FEATURE_MMXEXT (1*32+22) /* AMD MMX extensions */ | |
| 52 | #define X86_FEATURE_RDTSCP (1*32+27) /* RDTSCP */ | |
| 53 | #define X86_FEATURE_LM (1*32+29) /* Long Mode (x86-64) */ | |
| 54 | #define X86_FEATURE_3DNOWEXT (1*32+30) /* AMD 3DNow! extensions */ | |
| 55 | #define X86_FEATURE_3DNOW (1*32+31) /* 3DNow! */ | |
| 56 | ||
| 57 | /* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */ | |
| 58 | #define X86_FEATURE_RECOVERY (2*32+ 0) /* CPU in recovery mode */ | |
| 59 | #define X86_FEATURE_LONGRUN (2*32+ 1) /* Longrun power control */ | |
| 60 | #define X86_FEATURE_LRTI (2*32+ 3) /* LongRun table interface */ | |
| 61 | ||
| 62 | /* Other features, Linux-defined mapping, word 3 */ | |
| 63 | /* This range is used for feature bits which conflict or are synthesized */ | |
| 64 | #define X86_FEATURE_CXMMX (3*32+ 0) /* Cyrix MMX extensions */ | |
| 65 | #define X86_FEATURE_K6_MTRR (3*32+ 1) /* AMD K6 nonstandard MTRRs */ | |
| 66 | #define X86_FEATURE_CYRIX_ARR (3*32+ 2) /* Cyrix ARRs (= MTRRs) */ | |
| 67 | #define X86_FEATURE_CENTAUR_MCR (3*32+ 3) /* Centaur MCRs (= MTRRs) */ | |
| 68 | /* cpu types for specific tunings: */ | |
| 69 | #define X86_FEATURE_K8 (3*32+ 4) /* Opteron, Athlon64 */ | |
| 70 | #define X86_FEATURE_K7 (3*32+ 5) /* Athlon */ | |
| 71 | #define X86_FEATURE_P3 (3*32+ 6) /* P3 */ | |
| 72 | #define X86_FEATURE_P4 (3*32+ 7) /* P4 */ | |
| 73 | #define X86_FEATURE_CONSTANT_TSC (3*32+ 8) /* TSC ticks at a constant rate */ | |
| 74 | #define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */ | |
| 75 | #define X86_FEATURE_FXSAVE_LEAK (3*32+10) /* FXSAVE leaks FOP/FIP/FOP */ | |
| 76 | #define X86_FEATURE_ARCH_PERFMON (3*32+11) /* Intel Architectural PerfMon */ | |
| 77 | #define X86_FEATURE_PEBS (3*32+12) /* Precise-Event Based Sampling */ | |
| 78 | #define X86_FEATURE_BTS (3*32+13) /* Branch Trace Store */ | |
| 79 | /* 14 free */ | |
| 80 | #define X86_FEATURE_SYNC_RDTSC (3*32+15) /* RDTSC synchronizes the CPU */ | |
| 81 | #define X86_FEATURE_REP_GOOD (3*32+16) /* rep microcode works well on this CPU */ | |
| 82 | ||
| 83 | /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */ | |
| 84 | #define X86_FEATURE_XMM3 (4*32+ 0) /* Streaming SIMD Extensions-3 */ | |
| 85 | #define X86_FEATURE_MWAIT (4*32+ 3) /* Monitor/Mwait support */ | |
| 86 | #define X86_FEATURE_DSCPL (4*32+ 4) /* CPL Qualified Debug Store */ | |
| 87 | #define X86_FEATURE_EST (4*32+ 7) /* Enhanced SpeedStep */ | |
| 88 | #define X86_FEATURE_TM2 (4*32+ 8) /* Thermal Monitor 2 */ | |
| 89 | #define X86_FEATURE_CID (4*32+10) /* Context ID */ | |
| 90 | #define X86_FEATURE_CX16 (4*32+13) /* CMPXCHG16B */ | |
| 91 | #define X86_FEATURE_XTPR (4*32+14) /* Send Task Priority Messages */ | |
| 92 | #define X86_FEATURE_DCA (4*32+18) /* Direct Cache Access */ | |
| 93 | ||
| 94 | /* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */ | |
| 95 | #define X86_FEATURE_XSTORE (5*32+ 2) /* on-CPU RNG present (xstore insn) */ | |
| 96 | #define X86_FEATURE_XSTORE_EN (5*32+ 3) /* on-CPU RNG enabled */ | |
| 97 | #define X86_FEATURE_XCRYPT (5*32+ 6) /* on-CPU crypto (xcrypt insn) */ | |
| 98 | #define X86_FEATURE_XCRYPT_EN (5*32+ 7) /* on-CPU crypto enabled */ | |
| 99 | #define X86_FEATURE_ACE2 (5*32+ 8) /* Advanced Cryptography Engine v2 */ | |
| 100 | #define X86_FEATURE_ACE2_EN (5*32+ 9) /* ACE v2 enabled */ | |
| 101 | #define X86_FEATURE_PHE (5*32+ 10) /* PadLock Hash Engine */ | |
| 102 | #define X86_FEATURE_PHE_EN (5*32+ 11) /* PHE enabled */ | |
| 103 | #define X86_FEATURE_PMM (5*32+ 12) /* PadLock Montgomery Multiplier */ | |
| 104 | #define X86_FEATURE_PMM_EN (5*32+ 13) /* PMM enabled */ | |
| 105 | ||
| 106 | /* More extended AMD flags: CPUID level 0x80000001, ecx, word 6 */ | |
| 107 | #define X86_FEATURE_LAHF_LM (6*32+ 0) /* LAHF/SAHF in long mode */ | |
| 108 | #define X86_FEATURE_CMP_LEGACY (6*32+ 1) /* If yes HyperThreading not valid */ | |
| 109 | ||
| 110 | /* | |
| 111 | * Auxiliary flags: Linux defined - For features scattered in various | |
| 112 | * CPUID levels like 0x6, 0xA etc | |
| 113 | */ | |
| 114 | #define X86_FEATURE_IDA (7*32+ 0) /* Intel Dynamic Acceleration */ | |
| 115 | ||
| 116 | #define cpu_has(c, bit) \ | |
| 117 | (__builtin_constant_p(bit) && \ | |
| 118 | ( (((bit)>>5)==0 && (1UL<<((bit)&31) & REQUIRED_MASK0)) || \ | |
| 119 | (((bit)>>5)==1 && (1UL<<((bit)&31) & REQUIRED_MASK1)) || \ | |
| 120 | (((bit)>>5)==2 && (1UL<<((bit)&31) & REQUIRED_MASK2)) || \ | |
| 121 | (((bit)>>5)==3 && (1UL<<((bit)&31) & REQUIRED_MASK3)) || \ | |
| 122 | (((bit)>>5)==4 && (1UL<<((bit)&31) & REQUIRED_MASK4)) || \ | |
| 123 | (((bit)>>5)==5 && (1UL<<((bit)&31) & REQUIRED_MASK5)) || \ | |
| 124 | (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) || \ | |
| 125 | (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) ) \ | |
| 126 | ? 1 : \ | |
| 5548fecd | 127 | test_bit(bit, (unsigned long *)(c)->x86_capability)) |
| 7b11fb51 PA |
128 | #define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit) |
| 129 | ||
| 130 | #define cpu_has_fpu boot_cpu_has(X86_FEATURE_FPU) | |
| 131 | #define cpu_has_vme boot_cpu_has(X86_FEATURE_VME) | |
| 132 | #define cpu_has_de boot_cpu_has(X86_FEATURE_DE) | |
| 133 | #define cpu_has_pse boot_cpu_has(X86_FEATURE_PSE) | |
| 134 | #define cpu_has_tsc boot_cpu_has(X86_FEATURE_TSC) | |
| 135 | #define cpu_has_pae boot_cpu_has(X86_FEATURE_PAE) | |
| 136 | #define cpu_has_pge boot_cpu_has(X86_FEATURE_PGE) | |
| 137 | #define cpu_has_apic boot_cpu_has(X86_FEATURE_APIC) | |
| 138 | #define cpu_has_sep boot_cpu_has(X86_FEATURE_SEP) | |
| 139 | #define cpu_has_mtrr boot_cpu_has(X86_FEATURE_MTRR) | |
| 140 | #define cpu_has_mmx boot_cpu_has(X86_FEATURE_MMX) | |
| 141 | #define cpu_has_fxsr boot_cpu_has(X86_FEATURE_FXSR) | |
| 142 | #define cpu_has_xmm boot_cpu_has(X86_FEATURE_XMM) | |
| 143 | #define cpu_has_xmm2 boot_cpu_has(X86_FEATURE_XMM2) | |
| 144 | #define cpu_has_xmm3 boot_cpu_has(X86_FEATURE_XMM3) | |
| 145 | #define cpu_has_ht boot_cpu_has(X86_FEATURE_HT) | |
| 146 | #define cpu_has_mp boot_cpu_has(X86_FEATURE_MP) | |
| 147 | #define cpu_has_nx boot_cpu_has(X86_FEATURE_NX) | |
| 148 | #define cpu_has_k6_mtrr boot_cpu_has(X86_FEATURE_K6_MTRR) | |
| 149 | #define cpu_has_cyrix_arr boot_cpu_has(X86_FEATURE_CYRIX_ARR) | |
| 150 | #define cpu_has_centaur_mcr boot_cpu_has(X86_FEATURE_CENTAUR_MCR) | |
| 151 | #define cpu_has_xstore boot_cpu_has(X86_FEATURE_XSTORE) | |
| 152 | #define cpu_has_xstore_enabled boot_cpu_has(X86_FEATURE_XSTORE_EN) | |
| 153 | #define cpu_has_xcrypt boot_cpu_has(X86_FEATURE_XCRYPT) | |
| 154 | #define cpu_has_xcrypt_enabled boot_cpu_has(X86_FEATURE_XCRYPT_EN) | |
| 155 | #define cpu_has_ace2 boot_cpu_has(X86_FEATURE_ACE2) | |
| 156 | #define cpu_has_ace2_enabled boot_cpu_has(X86_FEATURE_ACE2_EN) | |
| 157 | #define cpu_has_phe boot_cpu_has(X86_FEATURE_PHE) | |
| 158 | #define cpu_has_phe_enabled boot_cpu_has(X86_FEATURE_PHE_EN) | |
| 159 | #define cpu_has_pmm boot_cpu_has(X86_FEATURE_PMM) | |
| 160 | #define cpu_has_pmm_enabled boot_cpu_has(X86_FEATURE_PMM_EN) | |
| 161 | #define cpu_has_ds boot_cpu_has(X86_FEATURE_DS) | |
| 162 | #define cpu_has_pebs boot_cpu_has(X86_FEATURE_PEBS) | |
| 163 | #define cpu_has_clflush boot_cpu_has(X86_FEATURE_CLFLSH) | |
| 164 | #define cpu_has_bts boot_cpu_has(X86_FEATURE_BTS) | |
| 165 | ||
| 0b9c99b6 TG |
166 | #if defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_64) |
| 167 | # define cpu_has_invlpg 1 | |
| 168 | #else | |
| 169 | # define cpu_has_invlpg (boot_cpu_data.x86 > 3) | |
| 170 | #endif | |
| 171 | ||
| 7b11fb51 PA |
172 | #ifdef CONFIG_X86_64 |
| 173 | ||
| 174 | #undef cpu_has_vme | |
| 175 | #define cpu_has_vme 0 | |
| 176 | ||
| 177 | #undef cpu_has_pae | |
| 178 | #define cpu_has_pae ___BUG___ | |
| 179 | ||
| 180 | #undef cpu_has_mp | |
| 181 | #define cpu_has_mp 1 | |
| 182 | ||
| 183 | #undef cpu_has_k6_mtrr | |
| 184 | #define cpu_has_k6_mtrr 0 | |
| 185 | ||
| 186 | #undef cpu_has_cyrix_arr | |
| 187 | #define cpu_has_cyrix_arr 0 | |
| 188 | ||
| 189 | #undef cpu_has_centaur_mcr | |
| 190 | #define cpu_has_centaur_mcr 0 | |
| 191 | ||
| 0b9c99b6 TG |
192 | #undef cpu_has_pge |
| 193 | #define cpu_has_pge 1 | |
| 194 | ||
| 7b11fb51 PA |
195 | #endif /* CONFIG_X86_64 */ |
| 196 | ||
| 197 | #endif /* _ASM_X86_CPUFEATURE_H */ |