projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 7b11fb51 PA |
1 | /* |
| 2 | * Defines x86 CPU feature bits | |
| 3 | */ | |
| 1965aae3 PA |
4 | #ifndef _ASM_X86_CPUFEATURE_H |
| 5 | #define _ASM_X86_CPUFEATURE_H | |
| 7b11fb51 | 6 | |
| abbf1590 | 7 | #ifndef _ASM_X86_REQUIRED_FEATURES_H |
| 7b11fb51 | 8 | #include <asm/required-features.h> |
| abbf1590 | 9 | #endif |
| 7b11fb51 | 10 | |
| bdc802dc | 11 | #define NCAPINTS 10 /* N 32-bit words worth of info */ |
| 65fc985b | 12 | #define NBUGINTS 1 /* N 32-bit bug flags */ |
| 7b11fb51 | 13 | |
| 7414aa41 PA |
14 | /* |
| 15 | * Note: If the comment begins with a quoted string, that string is used | |
| 16 | * in /proc/cpuinfo instead of the macro name. If the string is "", | |
| 17 | * this feature bit is not displayed in /proc/cpuinfo at all. | |
| 18 | */ | |
| 7b11fb51 PA |
19 | |
| 20 | /* Intel-defined CPU features, CPUID level 0x00000001 (edx), word 0 */ | |
| 21 | #define X86_FEATURE_FPU (0*32+ 0) /* Onboard FPU */ | |
| 22 | #define X86_FEATURE_VME (0*32+ 1) /* Virtual Mode Extensions */ | |
| 23 | #define X86_FEATURE_DE (0*32+ 2) /* Debugging Extensions */ | |
| 24 | #define X86_FEATURE_PSE (0*32+ 3) /* Page Size Extensions */ | |
| 25 | #define X86_FEATURE_TSC (0*32+ 4) /* Time Stamp Counter */ | |
| 2798c63e | 26 | #define X86_FEATURE_MSR (0*32+ 5) /* Model-Specific Registers */ |
| 7b11fb51 | 27 | #define X86_FEATURE_PAE (0*32+ 6) /* Physical Address Extensions */ |
| 3969c52d | 28 | #define X86_FEATURE_MCE (0*32+ 7) /* Machine Check Exception */ |
| 7b11fb51 PA |
29 | #define X86_FEATURE_CX8 (0*32+ 8) /* CMPXCHG8 instruction */ |
| 30 | #define X86_FEATURE_APIC (0*32+ 9) /* Onboard APIC */ | |
| 31 | #define X86_FEATURE_SEP (0*32+11) /* SYSENTER/SYSEXIT */ | |
| 32 | #define X86_FEATURE_MTRR (0*32+12) /* Memory Type Range Registers */ | |
| 33 | #define X86_FEATURE_PGE (0*32+13) /* Page Global Enable */ | |
| 34 | #define X86_FEATURE_MCA (0*32+14) /* Machine Check Architecture */ | |
| 2798c63e PA |
35 | #define X86_FEATURE_CMOV (0*32+15) /* CMOV instructions */ |
| 36 | /* (plus FCMOVcc, FCOMI with FPU) */ | |
| 7b11fb51 PA |
37 | #define X86_FEATURE_PAT (0*32+16) /* Page Attribute Table */ |
| 38 | #define X86_FEATURE_PSE36 (0*32+17) /* 36-bit PSEs */ | |
| 39 | #define X86_FEATURE_PN (0*32+18) /* Processor serial number */ | |
| 2798c63e | 40 | #define X86_FEATURE_CLFLSH (0*32+19) /* "clflush" CLFLUSH instruction */ |
| 7414aa41 | 41 | #define X86_FEATURE_DS (0*32+21) /* "dts" Debug Store */ |
| 7b11fb51 PA |
42 | #define X86_FEATURE_ACPI (0*32+22) /* ACPI via MSR */ |
| 43 | #define X86_FEATURE_MMX (0*32+23) /* Multimedia Extensions */ | |
| 7414aa41 PA |
44 | #define X86_FEATURE_FXSR (0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */ |
| 45 | #define X86_FEATURE_XMM (0*32+25) /* "sse" */ | |
| 46 | #define X86_FEATURE_XMM2 (0*32+26) /* "sse2" */ | |
| 47 | #define X86_FEATURE_SELFSNOOP (0*32+27) /* "ss" CPU self snoop */ | |
| 7b11fb51 | 48 | #define X86_FEATURE_HT (0*32+28) /* Hyper-Threading */ |
| 7414aa41 | 49 | #define X86_FEATURE_ACC (0*32+29) /* "tm" Automatic clock control */ |
| 7b11fb51 | 50 | #define X86_FEATURE_IA64 (0*32+30) /* IA-64 processor */ |
| 7414aa41 | 51 | #define X86_FEATURE_PBE (0*32+31) /* Pending Break Enable */ |
| 7b11fb51 PA |
52 | |
| 53 | /* AMD-defined CPU features, CPUID level 0x80000001, word 1 */ | |
| 54 | /* Don't duplicate feature flags which are redundant with Intel! */ | |
| 55 | #define X86_FEATURE_SYSCALL (1*32+11) /* SYSCALL/SYSRET */ | |
| 56 | #define X86_FEATURE_MP (1*32+19) /* MP Capable. */ | |
| 57 | #define X86_FEATURE_NX (1*32+20) /* Execute Disable */ | |
| 58 | #define X86_FEATURE_MMXEXT (1*32+22) /* AMD MMX extensions */ | |
| 7414aa41 PA |
59 | #define X86_FEATURE_FXSR_OPT (1*32+25) /* FXSAVE/FXRSTOR optimizations */ |
| 60 | #define X86_FEATURE_GBPAGES (1*32+26) /* "pdpe1gb" GB pages */ | |
| 7b11fb51 PA |
61 | #define X86_FEATURE_RDTSCP (1*32+27) /* RDTSCP */ |
| 62 | #define X86_FEATURE_LM (1*32+29) /* Long Mode (x86-64) */ | |
| 63 | #define X86_FEATURE_3DNOWEXT (1*32+30) /* AMD 3DNow! extensions */ | |
| 64 | #define X86_FEATURE_3DNOW (1*32+31) /* 3DNow! */ | |
| 65 | ||
| 66 | /* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */ | |
| 67 | #define X86_FEATURE_RECOVERY (2*32+ 0) /* CPU in recovery mode */ | |
| 68 | #define X86_FEATURE_LONGRUN (2*32+ 1) /* Longrun power control */ | |
| 69 | #define X86_FEATURE_LRTI (2*32+ 3) /* LongRun table interface */ | |
| 70 | ||
| 71 | /* Other features, Linux-defined mapping, word 3 */ | |
| 72 | /* This range is used for feature bits which conflict or are synthesized */ | |
| 73 | #define X86_FEATURE_CXMMX (3*32+ 0) /* Cyrix MMX extensions */ | |
| 74 | #define X86_FEATURE_K6_MTRR (3*32+ 1) /* AMD K6 nonstandard MTRRs */ | |
| 75 | #define X86_FEATURE_CYRIX_ARR (3*32+ 2) /* Cyrix ARRs (= MTRRs) */ | |
| 76 | #define X86_FEATURE_CENTAUR_MCR (3*32+ 3) /* Centaur MCRs (= MTRRs) */ | |
| 77 | /* cpu types for specific tunings: */ | |
| 7414aa41 PA |
78 | #define X86_FEATURE_K8 (3*32+ 4) /* "" Opteron, Athlon64 */ |
| 79 | #define X86_FEATURE_K7 (3*32+ 5) /* "" Athlon */ | |
| 80 | #define X86_FEATURE_P3 (3*32+ 6) /* "" P3 */ | |
| 81 | #define X86_FEATURE_P4 (3*32+ 7) /* "" P4 */ | |
| 7b11fb51 PA |
82 | #define X86_FEATURE_CONSTANT_TSC (3*32+ 8) /* TSC ticks at a constant rate */ |
| 83 | #define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */ | |
| 7414aa41 | 84 | #define X86_FEATURE_FXSAVE_LEAK (3*32+10) /* "" FXSAVE leaks FOP/FIP/FOP */ |
| 7b11fb51 | 85 | #define X86_FEATURE_ARCH_PERFMON (3*32+11) /* Intel Architectural PerfMon */ |
| b6734c35 PA |
86 | #define X86_FEATURE_PEBS (3*32+12) /* Precise-Event Based Sampling */ |
| 87 | #define X86_FEATURE_BTS (3*32+13) /* Branch Trace Store */ | |
| 7414aa41 PA |
88 | #define X86_FEATURE_SYSCALL32 (3*32+14) /* "" syscall in ia32 userspace */ |
| 89 | #define X86_FEATURE_SYSENTER32 (3*32+15) /* "" sysenter in ia32 userspace */ | |
| 2798c63e | 90 | #define X86_FEATURE_REP_GOOD (3*32+16) /* rep microcode works well */ |
| 7414aa41 PA |
91 | #define X86_FEATURE_MFENCE_RDTSC (3*32+17) /* "" Mfence synchronizes RDTSC */ |
| 92 | #define X86_FEATURE_LFENCE_RDTSC (3*32+18) /* "" Lfence synchronizes RDTSC */ | |
| 93 | #define X86_FEATURE_11AP (3*32+19) /* "" Bad local APIC aka 11AP */ | |
| b6734c35 | 94 | #define X86_FEATURE_NOPL (3*32+20) /* The NOPL (0F 1F) instructions */ |
| c3b83598 | 95 | #define X86_FEATURE_ALWAYS (3*32+21) /* "" Always-present feature */ |
| 2576c999 | 96 | #define X86_FEATURE_XTOPOLOGY (3*32+22) /* cpu topology enum extensions */ |
| b2bcc7b2 | 97 | #define X86_FEATURE_TSC_RELIABLE (3*32+23) /* TSC is known to be reliable */ |
| d4377974 | 98 | #define X86_FEATURE_NONSTOP_TSC (3*32+24) /* TSC does not stop in C states */ |
| e736ad54 | 99 | #define X86_FEATURE_CLFLUSH_MONITOR (3*32+25) /* "" clflush reqd with monitor */ |
| 42937e81 | 100 | #define X86_FEATURE_EXTD_APICID (3*32+26) /* has extended APICID (8 bits) */ |
| 4a376ec3 | 101 | #define X86_FEATURE_AMD_DCM (3*32+27) /* multi-node processor */ |
| a8303aaf | 102 | #define X86_FEATURE_APERFMPERF (3*32+28) /* APERFMPERF */ |
| 5d2bd700 | 103 | #define X86_FEATURE_EAGER_FPU (3*32+29) /* "eagerfpu" Non lazy FPU restore */ |
| c54fdbb2 | 104 | #define X86_FEATURE_NONSTOP_TSC_S3 (3*32+30) /* TSC doesn't stop in S3 state */ |
| 7b11fb51 PA |
105 | |
| 106 | /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */ | |
| 7414aa41 | 107 | #define X86_FEATURE_XMM3 (4*32+ 0) /* "pni" SSE-3 */ |
| f1240c00 PA |
108 | #define X86_FEATURE_PCLMULQDQ (4*32+ 1) /* PCLMULQDQ instruction */ |
| 109 | #define X86_FEATURE_DTES64 (4*32+ 2) /* 64-bit Debug Store */ | |
| 7414aa41 PA |
110 | #define X86_FEATURE_MWAIT (4*32+ 3) /* "monitor" Monitor/Mwait support */ |
| 111 | #define X86_FEATURE_DSCPL (4*32+ 4) /* "ds_cpl" CPL Qual. Debug Store */ | |
| 112 | #define X86_FEATURE_VMX (4*32+ 5) /* Hardware virtualization */ | |
| af2e1f27 | 113 | #define X86_FEATURE_SMX (4*32+ 6) /* Safer mode */ |
| 7b11fb51 PA |
114 | #define X86_FEATURE_EST (4*32+ 7) /* Enhanced SpeedStep */ |
| 115 | #define X86_FEATURE_TM2 (4*32+ 8) /* Thermal Monitor 2 */ | |
| 7414aa41 | 116 | #define X86_FEATURE_SSSE3 (4*32+ 9) /* Supplemental SSE-3 */ |
| 7b11fb51 | 117 | #define X86_FEATURE_CID (4*32+10) /* Context ID */ |
| f1240c00 | 118 | #define X86_FEATURE_FMA (4*32+12) /* Fused multiply-add */ |
| 7b11fb51 PA |
119 | #define X86_FEATURE_CX16 (4*32+13) /* CMPXCHG16B */ |
| 120 | #define X86_FEATURE_XTPR (4*32+14) /* Send Task Priority Messages */ | |
| f1240c00 | 121 | #define X86_FEATURE_PDCM (4*32+15) /* Performance Capabilities */ |
| be604e69 | 122 | #define X86_FEATURE_PCID (4*32+17) /* Process Context Identifiers */ |
| 7b11fb51 | 123 | #define X86_FEATURE_DCA (4*32+18) /* Direct Cache Access */ |
| 7414aa41 PA |
124 | #define X86_FEATURE_XMM4_1 (4*32+19) /* "sse4_1" SSE-4.1 */ |
| 125 | #define X86_FEATURE_XMM4_2 (4*32+20) /* "sse4_2" SSE-4.2 */ | |
| 32e1d0a0 | 126 | #define X86_FEATURE_X2APIC (4*32+21) /* x2APIC */ |
| 069ebaa4 AK |
127 | #define X86_FEATURE_MOVBE (4*32+22) /* MOVBE instruction */ |
| 128 | #define X86_FEATURE_POPCNT (4*32+23) /* POPCNT instruction */ | |
| b90dfb04 | 129 | #define X86_FEATURE_TSC_DEADLINE_TIMER (4*32+24) /* Tsc deadline timer */ |
| f1240c00 PA |
130 | #define X86_FEATURE_AES (4*32+25) /* AES instructions */ |
| 131 | #define X86_FEATURE_XSAVE (4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */ | |
| 132 | #define X86_FEATURE_OSXSAVE (4*32+27) /* "" XSAVE enabled in the OS */ | |
| 133 | #define X86_FEATURE_AVX (4*32+28) /* Advanced Vector Extensions */ | |
| 24da9c26 | 134 | #define X86_FEATURE_F16C (4*32+29) /* 16-bit fp conversions */ |
| 7ccafc5f | 135 | #define X86_FEATURE_RDRAND (4*32+30) /* The RDRAND instruction */ |
| 49ab56ac | 136 | #define X86_FEATURE_HYPERVISOR (4*32+31) /* Running on a hypervisor */ |
| 7b11fb51 PA |
137 | |
| 138 | /* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */ | |
| 7414aa41 PA |
139 | #define X86_FEATURE_XSTORE (5*32+ 2) /* "rng" RNG present (xstore) */ |
| 140 | #define X86_FEATURE_XSTORE_EN (5*32+ 3) /* "rng_en" RNG enabled */ | |
| 141 | #define X86_FEATURE_XCRYPT (5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */ | |
| 142 | #define X86_FEATURE_XCRYPT_EN (5*32+ 7) /* "ace_en" on-CPU crypto enabled */ | |
| 7b11fb51 PA |
143 | #define X86_FEATURE_ACE2 (5*32+ 8) /* Advanced Cryptography Engine v2 */ |
| 144 | #define X86_FEATURE_ACE2_EN (5*32+ 9) /* ACE v2 enabled */ | |
| 7414aa41 PA |
145 | #define X86_FEATURE_PHE (5*32+10) /* PadLock Hash Engine */ |
| 146 | #define X86_FEATURE_PHE_EN (5*32+11) /* PHE enabled */ | |
| 147 | #define X86_FEATURE_PMM (5*32+12) /* PadLock Montgomery Multiplier */ | |
| 148 | #define X86_FEATURE_PMM_EN (5*32+13) /* PMM enabled */ | |
| 7b11fb51 PA |
149 | |
| 150 | /* More extended AMD flags: CPUID level 0x80000001, ecx, word 6 */ | |
| 151 | #define X86_FEATURE_LAHF_LM (6*32+ 0) /* LAHF/SAHF in long mode */ | |
| 152 | #define X86_FEATURE_CMP_LEGACY (6*32+ 1) /* If yes HyperThreading not valid */ | |
| 7414aa41 PA |
153 | #define X86_FEATURE_SVM (6*32+ 2) /* Secure virtual machine */ |
| 154 | #define X86_FEATURE_EXTAPIC (6*32+ 3) /* Extended APIC space */ | |
| 155 | #define X86_FEATURE_CR8_LEGACY (6*32+ 4) /* CR8 in 32-bit mode */ | |
| 156 | #define X86_FEATURE_ABM (6*32+ 5) /* Advanced bit manipulation */ | |
| 157 | #define X86_FEATURE_SSE4A (6*32+ 6) /* SSE-4A */ | |
| 158 | #define X86_FEATURE_MISALIGNSSE (6*32+ 7) /* Misaligned SSE mode */ | |
| 159 | #define X86_FEATURE_3DNOWPREFETCH (6*32+ 8) /* 3DNow prefetch instructions */ | |
| 160 | #define X86_FEATURE_OSVW (6*32+ 9) /* OS Visible Workaround */ | |
| 161 | #define X86_FEATURE_IBS (6*32+10) /* Instruction Based Sampling */ | |
| 7ef8aa72 | 162 | #define X86_FEATURE_XOP (6*32+11) /* extended AVX instructions */ |
| 7414aa41 PA |
163 | #define X86_FEATURE_SKINIT (6*32+12) /* SKINIT/STGI instructions */ |
| 164 | #define X86_FEATURE_WDT (6*32+13) /* Watchdog timer */ | |
| 33ed82fb AP |
165 | #define X86_FEATURE_LWP (6*32+15) /* Light Weight Profiling */ |
| 166 | #define X86_FEATURE_FMA4 (6*32+16) /* 4 operands MAC instructions */ | |
| 652847aa | 167 | #define X86_FEATURE_TCE (6*32+17) /* translation cache extension */ |
| 9d260ebc | 168 | #define X86_FEATURE_NODEID_MSR (6*32+19) /* NodeId MSR */ |
| 33ed82fb AP |
169 | #define X86_FEATURE_TBM (6*32+21) /* trailing bit manipulations */ |
| 170 | #define X86_FEATURE_TOPOEXT (6*32+22) /* topology extensions CPUID leafs */ | |
| 4979d272 | 171 | #define X86_FEATURE_PERFCTR_CORE (6*32+23) /* core performance counter extensions */ |
| e259514e | 172 | #define X86_FEATURE_PERFCTR_NB (6*32+24) /* NB performance counter extensions */ |
| c43ca509 | 173 | #define X86_FEATURE_PERFCTR_L2 (6*32+28) /* L2 performance counter extensions */ |
| 7b11fb51 PA |
174 | |
| 175 | /* | |
| 176 | * Auxiliary flags: Linux defined - For features scattered in various | |
| bdc802dc | 177 | * CPUID levels like 0x6, 0xA etc, word 7 |
| 7b11fb51 PA |
178 | */ |
| 179 | #define X86_FEATURE_IDA (7*32+ 0) /* Intel Dynamic Acceleration */ | |
| db954b58 | 180 | #define X86_FEATURE_ARAT (7*32+ 1) /* Always Running APIC Timer */ |
| 5958f1d5 | 181 | #define X86_FEATURE_CPB (7*32+ 2) /* AMD Core Performance Boost */ |
| 23016bf0 | 182 | #define X86_FEATURE_EPB (7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */ |
| 278bc5f6 | 183 | #define X86_FEATURE_XSAVEOPT (7*32+ 4) /* Optimized Xsave */ |
| 9792db61 FY |
184 | #define X86_FEATURE_PLN (7*32+ 5) /* Intel Power Limit Notification */ |
| 185 | #define X86_FEATURE_PTS (7*32+ 6) /* Intel Package Thermal Status */ | |
| 4ad33411 | 186 | #define X86_FEATURE_DTHERM (7*32+ 7) /* Digital Thermal Sensor */ |
| 2f1e097e | 187 | #define X86_FEATURE_HW_PSTATE (7*32+ 8) /* AMD HW-PState */ |
| 9c5320c8 | 188 | #define X86_FEATURE_PROC_FEEDBACK (7*32+ 9) /* AMD ProcFeedbackInterface */ |
| 7b11fb51 | 189 | |
| bdc802dc | 190 | /* Virtualization flags: Linux defined, word 8 */ |
| e38e05a8 SY |
191 | #define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */ |
| 192 | #define X86_FEATURE_VNMI (8*32+ 1) /* Intel Virtual NMI */ | |
| 193 | #define X86_FEATURE_FLEXPRIORITY (8*32+ 2) /* Intel FlexPriority */ | |
| 194 | #define X86_FEATURE_EPT (8*32+ 3) /* Intel Extended Page Table */ | |
| 195 | #define X86_FEATURE_VPID (8*32+ 4) /* Intel Virtual Processor ID */ | |
| 278bc5f6 PA |
196 | #define X86_FEATURE_NPT (8*32+ 5) /* AMD Nested Page Table support */ |
| 197 | #define X86_FEATURE_LBRV (8*32+ 6) /* AMD LBR Virtualization support */ | |
| 198 | #define X86_FEATURE_SVML (8*32+ 7) /* "svm_lock" AMD SVM locking MSR */ | |
| 199 | #define X86_FEATURE_NRIPS (8*32+ 8) /* "nrip_save" AMD SVM next_rip save */ | |
| aeb9c7d6 AP |
200 | #define X86_FEATURE_TSCRATEMSR (8*32+ 9) /* "tsc_scale" AMD TSC scaling support */ |
| 201 | #define X86_FEATURE_VMCBCLEAN (8*32+10) /* "vmcb_clean" AMD VMCB clean bits support */ | |
| 202 | #define X86_FEATURE_FLUSHBYASID (8*32+11) /* AMD flush-by-ASID support */ | |
| 203 | #define X86_FEATURE_DECODEASSISTS (8*32+12) /* AMD Decode Assists support */ | |
| 204 | #define X86_FEATURE_PAUSEFILTER (8*32+13) /* AMD filtered pause intercept */ | |
| 205 | #define X86_FEATURE_PFTHRESHOLD (8*32+14) /* AMD pause filter threshold */ | |
| 206 | ||
| e38e05a8 | 207 | |
| bdc802dc | 208 | /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */ |
| 278bc5f6 | 209 | #define X86_FEATURE_FSGSBASE (9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/ |
| ba904635 | 210 | #define X86_FEATURE_TSC_ADJUST (9*32+ 1) /* TSC adjustment MSR 0x3b */ |
| fb215366 | 211 | #define X86_FEATURE_BMI1 (9*32+ 3) /* 1st group bit manipulation extensions */ |
| 513c4ec6 | 212 | #define X86_FEATURE_HLE (9*32+ 4) /* Hardware Lock Elision */ |
| fb215366 | 213 | #define X86_FEATURE_AVX2 (9*32+ 5) /* AVX2 instructions */ |
| d0281a25 | 214 | #define X86_FEATURE_SMEP (9*32+ 7) /* Supervisor Mode Execution Protection */ |
| fb215366 | 215 | #define X86_FEATURE_BMI2 (9*32+ 8) /* 2nd group bit manipulation extensions */ |
| 724a92ee | 216 | #define X86_FEATURE_ERMS (9*32+ 9) /* Enhanced REP MOVSB/STOSB */ |
| 513c4ec6 PA |
217 | #define X86_FEATURE_INVPCID (9*32+10) /* Invalidate Processor Context ID */ |
| 218 | #define X86_FEATURE_RTM (9*32+11) /* Restricted Transactional Memory */ | |
| 191f57c1 | 219 | #define X86_FEATURE_MPX (9*32+14) /* Memory Protection Extension */ |
| 8e5780fd | 220 | #define X86_FEATURE_AVX512F (9*32+16) /* AVX-512 Foundation */ |
| 30d5c454 PA |
221 | #define X86_FEATURE_RDSEED (9*32+18) /* The RDSEED instruction */ |
| 222 | #define X86_FEATURE_ADX (9*32+19) /* The ADCX and ADOX instructions */ | |
| 05194cfc | 223 | #define X86_FEATURE_SMAP (9*32+20) /* Supervisor Mode Access Prevention */ |
| 171699f7 | 224 | #define X86_FEATURE_CLFLUSHOPT (9*32+23) /* CLFLUSHOPT instruction */ |
| 8e5780fd FY |
225 | #define X86_FEATURE_AVX512PF (9*32+26) /* AVX-512 Prefetch */ |
| 226 | #define X86_FEATURE_AVX512ER (9*32+27) /* AVX-512 Exponential and Reciprocal */ | |
| 227 | #define X86_FEATURE_AVX512CD (9*32+28) /* AVX-512 Conflict Detection */ | |
| bdc802dc | 228 | |
| 65fc985b BP |
229 | /* |
| 230 | * BUG word(s) | |
| 231 | */ | |
| 232 | #define X86_BUG(x) (NCAPINTS*32 + (x)) | |
| 233 | ||
| e2604b49 | 234 | #define X86_BUG_F00F X86_BUG(0) /* Intel F00F */ |
| 93a829e8 | 235 | #define X86_BUG_FDIV X86_BUG(1) /* FPU FDIV */ |
| c5b41a67 | 236 | #define X86_BUG_COMA X86_BUG(2) /* Cyrix 6x86 coma */ |
| e6ee94d5 | 237 | #define X86_BUG_AMD_TLB_MMATCH X86_BUG(3) /* AMD Erratum 383 */ |
| 7d7dc116 | 238 | #define X86_BUG_AMD_APIC_C1E X86_BUG(4) /* AMD Erratum 400 */ |
| e2604b49 | 239 | |
| fa1408e4 PA |
240 | #if defined(__KERNEL__) && !defined(__ASSEMBLY__) |
| 241 | ||
| a3c8acd0 | 242 | #include <asm/asm.h> |
| fa1408e4 PA |
243 | #include <linux/bitops.h> |
| 244 | ||
| 245 | extern const char * const x86_cap_flags[NCAPINTS*32]; | |
| 246 | extern const char * const x86_power_flags[32]; | |
| 247 | ||
| 0f8d2b92 IM |
248 | #define test_cpu_cap(c, bit) \ |
| 249 | test_bit(bit, (unsigned long *)((c)->x86_capability)) | |
| 250 | ||
| 349c004e | 251 | #define REQUIRED_MASK_BIT_SET(bit) \ |
| 7b11fb51 PA |
252 | ( (((bit)>>5)==0 && (1UL<<((bit)&31) & REQUIRED_MASK0)) || \ |
| 253 | (((bit)>>5)==1 && (1UL<<((bit)&31) & REQUIRED_MASK1)) || \ | |
| 254 | (((bit)>>5)==2 && (1UL<<((bit)&31) & REQUIRED_MASK2)) || \ | |
| 255 | (((bit)>>5)==3 && (1UL<<((bit)&31) & REQUIRED_MASK3)) || \ | |
| 256 | (((bit)>>5)==4 && (1UL<<((bit)&31) & REQUIRED_MASK4)) || \ | |
| 257 | (((bit)>>5)==5 && (1UL<<((bit)&31) & REQUIRED_MASK5)) || \ | |
| 258 | (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) || \ | |
| bdc802dc PA |
259 | (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) || \ |
| 260 | (((bit)>>5)==8 && (1UL<<((bit)&31) & REQUIRED_MASK8)) || \ | |
| 349c004e CL |
261 | (((bit)>>5)==9 && (1UL<<((bit)&31) & REQUIRED_MASK9)) ) |
| 262 | ||
| 263 | #define cpu_has(c, bit) \ | |
| 264 | (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ | |
| 0f8d2b92 IM |
265 | test_cpu_cap(c, bit)) |
| 266 | ||
| 349c004e CL |
267 | #define this_cpu_has(bit) \ |
| 268 | (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ | |
| 269 | x86_this_cpu_test_bit(bit, (unsigned long *)&cpu_info.x86_capability)) | |
| 270 | ||
| 7b11fb51 PA |
271 | #define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit) |
| 272 | ||
| 53756d37 JF |
273 | #define set_cpu_cap(c, bit) set_bit(bit, (unsigned long *)((c)->x86_capability)) |
| 274 | #define clear_cpu_cap(c, bit) clear_bit(bit, (unsigned long *)((c)->x86_capability)) | |
| 7d851c8d AK |
275 | #define setup_clear_cpu_cap(bit) do { \ |
| 276 | clear_cpu_cap(&boot_cpu_data, bit); \ | |
| 3e0c3737 | 277 | set_bit(bit, (unsigned long *)cpu_caps_cleared); \ |
| 7d851c8d | 278 | } while (0) |
| 404ee5b1 AK |
279 | #define setup_force_cpu_cap(bit) do { \ |
| 280 | set_cpu_cap(&boot_cpu_data, bit); \ | |
| 3e0c3737 | 281 | set_bit(bit, (unsigned long *)cpu_caps_set); \ |
| 404ee5b1 | 282 | } while (0) |
| 53756d37 | 283 | |
| 7b11fb51 PA |
284 | #define cpu_has_fpu boot_cpu_has(X86_FEATURE_FPU) |
| 285 | #define cpu_has_vme boot_cpu_has(X86_FEATURE_VME) | |
| 286 | #define cpu_has_de boot_cpu_has(X86_FEATURE_DE) | |
| 287 | #define cpu_has_pse boot_cpu_has(X86_FEATURE_PSE) | |
| 288 | #define cpu_has_tsc boot_cpu_has(X86_FEATURE_TSC) | |
| 289 | #define cpu_has_pae boot_cpu_has(X86_FEATURE_PAE) | |
| 290 | #define cpu_has_pge boot_cpu_has(X86_FEATURE_PGE) | |
| 291 | #define cpu_has_apic boot_cpu_has(X86_FEATURE_APIC) | |
| 292 | #define cpu_has_sep boot_cpu_has(X86_FEATURE_SEP) | |
| 293 | #define cpu_has_mtrr boot_cpu_has(X86_FEATURE_MTRR) | |
| 294 | #define cpu_has_mmx boot_cpu_has(X86_FEATURE_MMX) | |
| 295 | #define cpu_has_fxsr boot_cpu_has(X86_FEATURE_FXSR) | |
| 296 | #define cpu_has_xmm boot_cpu_has(X86_FEATURE_XMM) | |
| 297 | #define cpu_has_xmm2 boot_cpu_has(X86_FEATURE_XMM2) | |
| 298 | #define cpu_has_xmm3 boot_cpu_has(X86_FEATURE_XMM3) | |
| 66be8951 | 299 | #define cpu_has_ssse3 boot_cpu_has(X86_FEATURE_SSSE3) |
| 54b6a1bd | 300 | #define cpu_has_aes boot_cpu_has(X86_FEATURE_AES) |
| 66be8951 | 301 | #define cpu_has_avx boot_cpu_has(X86_FEATURE_AVX) |
| 60488010 | 302 | #define cpu_has_avx2 boot_cpu_has(X86_FEATURE_AVX2) |
| 7b11fb51 PA |
303 | #define cpu_has_ht boot_cpu_has(X86_FEATURE_HT) |
| 304 | #define cpu_has_mp boot_cpu_has(X86_FEATURE_MP) | |
| 305 | #define cpu_has_nx boot_cpu_has(X86_FEATURE_NX) | |
| 306 | #define cpu_has_k6_mtrr boot_cpu_has(X86_FEATURE_K6_MTRR) | |
| 307 | #define cpu_has_cyrix_arr boot_cpu_has(X86_FEATURE_CYRIX_ARR) | |
| 308 | #define cpu_has_centaur_mcr boot_cpu_has(X86_FEATURE_CENTAUR_MCR) | |
| 309 | #define cpu_has_xstore boot_cpu_has(X86_FEATURE_XSTORE) | |
| 310 | #define cpu_has_xstore_enabled boot_cpu_has(X86_FEATURE_XSTORE_EN) | |
| 311 | #define cpu_has_xcrypt boot_cpu_has(X86_FEATURE_XCRYPT) | |
| 312 | #define cpu_has_xcrypt_enabled boot_cpu_has(X86_FEATURE_XCRYPT_EN) | |
| 313 | #define cpu_has_ace2 boot_cpu_has(X86_FEATURE_ACE2) | |
| 314 | #define cpu_has_ace2_enabled boot_cpu_has(X86_FEATURE_ACE2_EN) | |
| 315 | #define cpu_has_phe boot_cpu_has(X86_FEATURE_PHE) | |
| 316 | #define cpu_has_phe_enabled boot_cpu_has(X86_FEATURE_PHE_EN) | |
| 317 | #define cpu_has_pmm boot_cpu_has(X86_FEATURE_PMM) | |
| 318 | #define cpu_has_pmm_enabled boot_cpu_has(X86_FEATURE_PMM_EN) | |
| 319 | #define cpu_has_ds boot_cpu_has(X86_FEATURE_DS) | |
| 320 | #define cpu_has_pebs boot_cpu_has(X86_FEATURE_PEBS) | |
| 321 | #define cpu_has_clflush boot_cpu_has(X86_FEATURE_CLFLSH) | |
| 322 | #define cpu_has_bts boot_cpu_has(X86_FEATURE_BTS) | |
| 019c3e7c | 323 | #define cpu_has_gbpages boot_cpu_has(X86_FEATURE_GBPAGES) |
| 86975101 | 324 | #define cpu_has_arch_perfmon boot_cpu_has(X86_FEATURE_ARCH_PERFMON) |
| 2e5d9c85 | 325 | #define cpu_has_pat boot_cpu_has(X86_FEATURE_PAT) |
| f1240c00 | 326 | #define cpu_has_xmm4_1 boot_cpu_has(X86_FEATURE_XMM4_1) |
| 2a61812a | 327 | #define cpu_has_xmm4_2 boot_cpu_has(X86_FEATURE_XMM4_2) |
| 32e1d0a0 | 328 | #define cpu_has_x2apic boot_cpu_has(X86_FEATURE_X2APIC) |
| f1240c00 | 329 | #define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE) |
| 212b0212 | 330 | #define cpu_has_xsaveopt boot_cpu_has(X86_FEATURE_XSAVEOPT) |
| 66be8951 | 331 | #define cpu_has_osxsave boot_cpu_has(X86_FEATURE_OSXSAVE) |
| 49ab56ac | 332 | #define cpu_has_hypervisor boot_cpu_has(X86_FEATURE_HYPERVISOR) |
| 0e1227d3 | 333 | #define cpu_has_pclmulqdq boot_cpu_has(X86_FEATURE_PCLMULQDQ) |
| 4979d272 | 334 | #define cpu_has_perfctr_core boot_cpu_has(X86_FEATURE_PERFCTR_CORE) |
| e259514e | 335 | #define cpu_has_perfctr_nb boot_cpu_has(X86_FEATURE_PERFCTR_NB) |
| c43ca509 | 336 | #define cpu_has_perfctr_l2 boot_cpu_has(X86_FEATURE_PERFCTR_L2) |
| 3824abd1 CL |
337 | #define cpu_has_cx8 boot_cpu_has(X86_FEATURE_CX8) |
| 338 | #define cpu_has_cx16 boot_cpu_has(X86_FEATURE_CX16) | |
| 5d2bd700 | 339 | #define cpu_has_eager_fpu boot_cpu_has(X86_FEATURE_EAGER_FPU) |
| 193f3fcb | 340 | #define cpu_has_topoext boot_cpu_has(X86_FEATURE_TOPOEXT) |
| 7b11fb51 PA |
341 | |
| 342 | #ifdef CONFIG_X86_64 | |
| 343 | ||
| 344 | #undef cpu_has_vme | |
| 345 | #define cpu_has_vme 0 | |
| 346 | ||
| 347 | #undef cpu_has_pae | |
| 348 | #define cpu_has_pae ___BUG___ | |
| 349 | ||
| 350 | #undef cpu_has_mp | |
| 351 | #define cpu_has_mp 1 | |
| 352 | ||
| 353 | #undef cpu_has_k6_mtrr | |
| 354 | #define cpu_has_k6_mtrr 0 | |
| 355 | ||
| 356 | #undef cpu_has_cyrix_arr | |
| 357 | #define cpu_has_cyrix_arr 0 | |
| 358 | ||
| 359 | #undef cpu_has_centaur_mcr | |
| 360 | #define cpu_has_centaur_mcr 0 | |
| 361 | ||
| 362 | #endif /* CONFIG_X86_64 */ | |
| 363 | ||
| 2fd81864 | 364 | #if __GNUC__ >= 4 |
| 5700f743 | 365 | extern void warn_pre_alternatives(void); |
| 4a90a99c | 366 | extern bool __static_cpu_has_safe(u16 bit); |
| 5700f743 | 367 | |
| a3c8acd0 PA |
368 | /* |
| 369 | * Static testing of CPU features. Used the same as boot_cpu_has(). | |
| 370 | * These are only valid after alternatives have run, but will statically | |
| 371 | * patch the target code for additional performance. | |
| a3c8acd0 | 372 | */ |
| 83a7a2ad | 373 | static __always_inline __pure bool __static_cpu_has(u16 bit) |
| a3c8acd0 | 374 | { |
| 62122fd7 | 375 | #ifdef CC_HAVE_ASM_GOTO |
| 5700f743 BP |
376 | |
| 377 | #ifdef CONFIG_X86_DEBUG_STATIC_CPU_HAS | |
| 62122fd7 | 378 | |
| 5700f743 BP |
379 | /* |
| 380 | * Catch too early usage of this before alternatives | |
| 381 | * have run. | |
| 382 | */ | |
| 3f0116c3 | 383 | asm_volatile_goto("1: jmp %l[t_warn]\n" |
| 5700f743 BP |
384 | "2:\n" |
| 385 | ".section .altinstructions,\"a\"\n" | |
| 386 | " .long 1b - .\n" | |
| 387 | " .long 0\n" /* no replacement */ | |
| 388 | " .word %P0\n" /* 1: do replace */ | |
| 389 | " .byte 2b - 1b\n" /* source len */ | |
| 390 | " .byte 0\n" /* replacement len */ | |
| 391 | ".previous\n" | |
| 392 | /* skipping size check since replacement size = 0 */ | |
| 393 | : : "i" (X86_FEATURE_ALWAYS) : : t_warn); | |
| 62122fd7 | 394 | |
| 5700f743 BP |
395 | #endif |
| 396 | ||
| 3f0116c3 | 397 | asm_volatile_goto("1: jmp %l[t_no]\n" |
| a3c8acd0 PA |
398 | "2:\n" |
| 399 | ".section .altinstructions,\"a\"\n" | |
| 59e97e4d AL |
400 | " .long 1b - .\n" |
| 401 | " .long 0\n" /* no replacement */ | |
| 83a7a2ad | 402 | " .word %P0\n" /* feature bit */ |
| a3c8acd0 PA |
403 | " .byte 2b - 1b\n" /* source len */ |
| 404 | " .byte 0\n" /* replacement len */ | |
| a3c8acd0 | 405 | ".previous\n" |
| 83a7a2ad | 406 | /* skipping size check since replacement size = 0 */ |
| a3c8acd0 PA |
407 | : : "i" (bit) : : t_no); |
| 408 | return true; | |
| 409 | t_no: | |
| 410 | return false; | |
| 5700f743 BP |
411 | |
| 412 | #ifdef CONFIG_X86_DEBUG_STATIC_CPU_HAS | |
| 413 | t_warn: | |
| 414 | warn_pre_alternatives(); | |
| 415 | return false; | |
| 416 | #endif | |
| 62122fd7 BP |
417 | |
| 418 | #else /* CC_HAVE_ASM_GOTO */ | |
| 419 | ||
| a3c8acd0 PA |
420 | u8 flag; |
| 421 | /* Open-coded due to __stringify() in ALTERNATIVE() */ | |
| 422 | asm volatile("1: movb $0,%0\n" | |
| 423 | "2:\n" | |
| 424 | ".section .altinstructions,\"a\"\n" | |
| 59e97e4d AL |
425 | " .long 1b - .\n" |
| 426 | " .long 3f - .\n" | |
| 83a7a2ad | 427 | " .word %P1\n" /* feature bit */ |
| a3c8acd0 PA |
428 | " .byte 2b - 1b\n" /* source len */ |
| 429 | " .byte 4f - 3f\n" /* replacement len */ | |
| 83a7a2ad PA |
430 | ".previous\n" |
| 431 | ".section .discard,\"aw\",@progbits\n" | |
| 432 | " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */ | |
| a3c8acd0 PA |
433 | ".previous\n" |
| 434 | ".section .altinstr_replacement,\"ax\"\n" | |
| 435 | "3: movb $1,%0\n" | |
| 436 | "4:\n" | |
| 437 | ".previous\n" | |
| 438 | : "=qm" (flag) : "i" (bit)); | |
| 439 | return flag; | |
| 62122fd7 BP |
440 | |
| 441 | #endif /* CC_HAVE_ASM_GOTO */ | |
| a3c8acd0 PA |
442 | } |
| 443 | ||
| 444 | #define static_cpu_has(bit) \ | |
| 445 | ( \ | |
| 446 | __builtin_constant_p(boot_cpu_has(bit)) ? \ | |
| 447 | boot_cpu_has(bit) : \ | |
| 83a7a2ad | 448 | __builtin_constant_p(bit) ? \ |
| a3c8acd0 PA |
449 | __static_cpu_has(bit) : \ |
| 450 | boot_cpu_has(bit) \ | |
| 451 | ) | |
| 4a90a99c BP |
452 | |
| 453 | static __always_inline __pure bool _static_cpu_has_safe(u16 bit) | |
| 454 | { | |
| 62122fd7 | 455 | #ifdef CC_HAVE_ASM_GOTO |
| 4a90a99c BP |
456 | /* |
| 457 | * We need to spell the jumps to the compiler because, depending on the offset, | |
| 458 | * the replacement jump can be bigger than the original jump, and this we cannot | |
| 459 | * have. Thus, we force the jump to the widest, 4-byte, signed relative | |
| 460 | * offset even though the last would often fit in less bytes. | |
| 461 | */ | |
| 3f0116c3 | 462 | asm_volatile_goto("1: .byte 0xe9\n .long %l[t_dynamic] - 2f\n" |
| 4a90a99c BP |
463 | "2:\n" |
| 464 | ".section .altinstructions,\"a\"\n" | |
| 465 | " .long 1b - .\n" /* src offset */ | |
| 466 | " .long 3f - .\n" /* repl offset */ | |
| 467 | " .word %P1\n" /* always replace */ | |
| 468 | " .byte 2b - 1b\n" /* src len */ | |
| 469 | " .byte 4f - 3f\n" /* repl len */ | |
| 470 | ".previous\n" | |
| 471 | ".section .altinstr_replacement,\"ax\"\n" | |
| 472 | "3: .byte 0xe9\n .long %l[t_no] - 2b\n" | |
| 473 | "4:\n" | |
| 474 | ".previous\n" | |
| 475 | ".section .altinstructions,\"a\"\n" | |
| 476 | " .long 1b - .\n" /* src offset */ | |
| 477 | " .long 0\n" /* no replacement */ | |
| 478 | " .word %P0\n" /* feature bit */ | |
| 479 | " .byte 2b - 1b\n" /* src len */ | |
| 480 | " .byte 0\n" /* repl len */ | |
| 481 | ".previous\n" | |
| 482 | : : "i" (bit), "i" (X86_FEATURE_ALWAYS) | |
| 483 | : : t_dynamic, t_no); | |
| 484 | return true; | |
| 485 | t_no: | |
| 486 | return false; | |
| 487 | t_dynamic: | |
| 488 | return __static_cpu_has_safe(bit); | |
| 62122fd7 | 489 | #else |
| 4a90a99c BP |
490 | u8 flag; |
| 491 | /* Open-coded due to __stringify() in ALTERNATIVE() */ | |
| 492 | asm volatile("1: movb $2,%0\n" | |
| 493 | "2:\n" | |
| 494 | ".section .altinstructions,\"a\"\n" | |
| 495 | " .long 1b - .\n" /* src offset */ | |
| 496 | " .long 3f - .\n" /* repl offset */ | |
| 497 | " .word %P2\n" /* always replace */ | |
| 498 | " .byte 2b - 1b\n" /* source len */ | |
| 499 | " .byte 4f - 3f\n" /* replacement len */ | |
| 500 | ".previous\n" | |
| 501 | ".section .discard,\"aw\",@progbits\n" | |
| 502 | " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */ | |
| 503 | ".previous\n" | |
| 504 | ".section .altinstr_replacement,\"ax\"\n" | |
| 505 | "3: movb $0,%0\n" | |
| 506 | "4:\n" | |
| 507 | ".previous\n" | |
| 508 | ".section .altinstructions,\"a\"\n" | |
| 509 | " .long 1b - .\n" /* src offset */ | |
| 510 | " .long 5f - .\n" /* repl offset */ | |
| 511 | " .word %P1\n" /* feature bit */ | |
| 512 | " .byte 4b - 3b\n" /* src len */ | |
| 513 | " .byte 6f - 5f\n" /* repl len */ | |
| 514 | ".previous\n" | |
| 515 | ".section .discard,\"aw\",@progbits\n" | |
| 516 | " .byte 0xff + (6f-5f) - (4b-3b)\n" /* size check */ | |
| 517 | ".previous\n" | |
| 518 | ".section .altinstr_replacement,\"ax\"\n" | |
| 519 | "5: movb $1,%0\n" | |
| 520 | "6:\n" | |
| 521 | ".previous\n" | |
| 522 | : "=qm" (flag) | |
| 523 | : "i" (bit), "i" (X86_FEATURE_ALWAYS)); | |
| 524 | return (flag == 2 ? __static_cpu_has_safe(bit) : flag); | |
| 62122fd7 | 525 | #endif /* CC_HAVE_ASM_GOTO */ |
| 4a90a99c BP |
526 | } |
| 527 | ||
| 528 | #define static_cpu_has_safe(bit) \ | |
| 529 | ( \ | |
| 530 | __builtin_constant_p(boot_cpu_has(bit)) ? \ | |
| 531 | boot_cpu_has(bit) : \ | |
| 532 | _static_cpu_has_safe(bit) \ | |
| 533 | ) | |
| 1ba4f22c PA |
534 | #else |
| 535 | /* | |
| 536 | * gcc 3.x is too stupid to do the static test; fall back to dynamic. | |
| 537 | */ | |
| 4a90a99c BP |
538 | #define static_cpu_has(bit) boot_cpu_has(bit) |
| 539 | #define static_cpu_has_safe(bit) boot_cpu_has(bit) | |
| 1ba4f22c | 540 | #endif |
| a3c8acd0 | 541 | |
| 65fc985b BP |
542 | #define cpu_has_bug(c, bit) cpu_has(c, (bit)) |
| 543 | #define set_cpu_bug(c, bit) set_cpu_cap(c, (bit)) | |
| 544 | #define clear_cpu_bug(c, bit) clear_cpu_cap(c, (bit)); | |
| 545 | ||
| 546 | #define static_cpu_has_bug(bit) static_cpu_has((bit)) | |
| 547 | #define boot_cpu_has_bug(bit) cpu_has_bug(&boot_cpu_data, (bit)) | |
| 548 | ||
| fa1408e4 PA |
549 | #endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */ |
| 550 | ||
| 1965aae3 | 551 | #endif /* _ASM_X86_CPUFEATURE_H */ |