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1 | /* |
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2 | * Defines x86 CPU feature bits |
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3 | */ |
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4 | #ifndef _ASM_X86_CPUFEATURE_H |
1 | #ifndef _ASM_X86_CPUFEATURE_H |
5 | #define _ASM_X86_CPUFEATURE_H |
2 | #define _ASM_X86_CPUFEATURE_H |
Line 6... | Line -... | ||
6 | - | ||
7 | #ifndef _ASM_X86_REQUIRED_FEATURES_H |
3 | |
8 | #include |
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9 | #endif |
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10 | - | ||
11 | #ifndef _ASM_X86_DISABLED_FEATURES_H |
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12 | #include |
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13 | #endif |
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14 | - | ||
15 | #define NCAPINTS 16 /* N 32-bit words worth of info */ |
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16 | #define NBUGINTS 1 /* N 32-bit bug flags */ |
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17 | - | ||
18 | /* |
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19 | * Note: If the comment begins with a quoted string, that string is used |
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20 | * in /proc/cpuinfo instead of the macro name. If the string is "", |
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21 | * this feature bit is not displayed in /proc/cpuinfo at all. |
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22 | */ |
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23 | - | ||
24 | /* Intel-defined CPU features, CPUID level 0x00000001 (edx), word 0 */ |
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25 | #define X86_FEATURE_FPU ( 0*32+ 0) /* Onboard FPU */ |
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26 | #define X86_FEATURE_VME ( 0*32+ 1) /* Virtual Mode Extensions */ |
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27 | #define X86_FEATURE_DE ( 0*32+ 2) /* Debugging Extensions */ |
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28 | #define X86_FEATURE_PSE ( 0*32+ 3) /* Page Size Extensions */ |
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29 | #define X86_FEATURE_TSC ( 0*32+ 4) /* Time Stamp Counter */ |
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30 | #define X86_FEATURE_MSR ( 0*32+ 5) /* Model-Specific Registers */ |
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31 | #define X86_FEATURE_PAE ( 0*32+ 6) /* Physical Address Extensions */ |
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32 | #define X86_FEATURE_MCE ( 0*32+ 7) /* Machine Check Exception */ |
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33 | #define X86_FEATURE_CX8 ( 0*32+ 8) /* CMPXCHG8 instruction */ |
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34 | #define X86_FEATURE_APIC ( 0*32+ 9) /* Onboard APIC */ |
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35 | #define X86_FEATURE_SEP ( 0*32+11) /* SYSENTER/SYSEXIT */ |
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36 | #define X86_FEATURE_MTRR ( 0*32+12) /* Memory Type Range Registers */ |
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37 | #define X86_FEATURE_PGE ( 0*32+13) /* Page Global Enable */ |
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38 | #define X86_FEATURE_MCA ( 0*32+14) /* Machine Check Architecture */ |
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39 | #define X86_FEATURE_CMOV ( 0*32+15) /* CMOV instructions */ |
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40 | /* (plus FCMOVcc, FCOMI with FPU) */ |
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41 | #define X86_FEATURE_PAT ( 0*32+16) /* Page Attribute Table */ |
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42 | #define X86_FEATURE_PSE36 ( 0*32+17) /* 36-bit PSEs */ |
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43 | #define X86_FEATURE_PN ( 0*32+18) /* Processor serial number */ |
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44 | #define X86_FEATURE_CLFLUSH ( 0*32+19) /* CLFLUSH instruction */ |
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45 | #define X86_FEATURE_DS ( 0*32+21) /* "dts" Debug Store */ |
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46 | #define X86_FEATURE_ACPI ( 0*32+22) /* ACPI via MSR */ |
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47 | #define X86_FEATURE_MMX ( 0*32+23) /* Multimedia Extensions */ |
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48 | #define X86_FEATURE_FXSR ( 0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */ |
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49 | #define X86_FEATURE_XMM ( 0*32+25) /* "sse" */ |
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50 | #define X86_FEATURE_XMM2 ( 0*32+26) /* "sse2" */ |
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51 | #define X86_FEATURE_SELFSNOOP ( 0*32+27) /* "ss" CPU self snoop */ |
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52 | #define X86_FEATURE_HT ( 0*32+28) /* Hyper-Threading */ |
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53 | #define X86_FEATURE_ACC ( 0*32+29) /* "tm" Automatic clock control */ |
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54 | #define X86_FEATURE_IA64 ( 0*32+30) /* IA-64 processor */ |
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55 | #define X86_FEATURE_PBE ( 0*32+31) /* Pending Break Enable */ |
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56 | - | ||
57 | /* AMD-defined CPU features, CPUID level 0x80000001, word 1 */ |
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58 | /* Don't duplicate feature flags which are redundant with Intel! */ |
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59 | #define X86_FEATURE_SYSCALL ( 1*32+11) /* SYSCALL/SYSRET */ |
- | |
60 | #define X86_FEATURE_MP ( 1*32+19) /* MP Capable. */ |
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61 | #define X86_FEATURE_NX ( 1*32+20) /* Execute Disable */ |
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62 | #define X86_FEATURE_MMXEXT ( 1*32+22) /* AMD MMX extensions */ |
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63 | #define X86_FEATURE_FXSR_OPT ( 1*32+25) /* FXSAVE/FXRSTOR optimizations */ |
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64 | #define X86_FEATURE_GBPAGES ( 1*32+26) /* "pdpe1gb" GB pages */ |
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65 | #define X86_FEATURE_RDTSCP ( 1*32+27) /* RDTSCP */ |
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66 | #define X86_FEATURE_LM ( 1*32+29) /* Long Mode (x86-64) */ |
- | |
67 | #define X86_FEATURE_3DNOWEXT ( 1*32+30) /* AMD 3DNow! extensions */ |
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68 | #define X86_FEATURE_3DNOW ( 1*32+31) /* 3DNow! */ |
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69 | - | ||
70 | /* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */ |
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71 | #define X86_FEATURE_RECOVERY ( 2*32+ 0) /* CPU in recovery mode */ |
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72 | #define X86_FEATURE_LONGRUN ( 2*32+ 1) /* Longrun power control */ |
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73 | #define X86_FEATURE_LRTI ( 2*32+ 3) /* LongRun table interface */ |
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74 | - | ||
75 | /* Other features, Linux-defined mapping, word 3 */ |
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76 | /* This range is used for feature bits which conflict or are synthesized */ |
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77 | #define X86_FEATURE_CXMMX ( 3*32+ 0) /* Cyrix MMX extensions */ |
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78 | #define X86_FEATURE_K6_MTRR ( 3*32+ 1) /* AMD K6 nonstandard MTRRs */ |
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79 | #define X86_FEATURE_CYRIX_ARR ( 3*32+ 2) /* Cyrix ARRs (= MTRRs) */ |
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80 | #define X86_FEATURE_CENTAUR_MCR ( 3*32+ 3) /* Centaur MCRs (= MTRRs) */ |
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81 | /* cpu types for specific tunings: */ |
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82 | #define X86_FEATURE_K8 ( 3*32+ 4) /* "" Opteron, Athlon64 */ |
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83 | #define X86_FEATURE_K7 ( 3*32+ 5) /* "" Athlon */ |
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84 | #define X86_FEATURE_P3 ( 3*32+ 6) /* "" P3 */ |
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85 | #define X86_FEATURE_P4 ( 3*32+ 7) /* "" P4 */ |
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86 | #define X86_FEATURE_CONSTANT_TSC ( 3*32+ 8) /* TSC ticks at a constant rate */ |
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87 | #define X86_FEATURE_UP ( 3*32+ 9) /* smp kernel running on up */ |
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88 | /* free, was #define X86_FEATURE_FXSAVE_LEAK ( 3*32+10) * "" FXSAVE leaks FOP/FIP/FOP */ |
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89 | #define X86_FEATURE_ARCH_PERFMON ( 3*32+11) /* Intel Architectural PerfMon */ |
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90 | #define X86_FEATURE_PEBS ( 3*32+12) /* Precise-Event Based Sampling */ |
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91 | #define X86_FEATURE_BTS ( 3*32+13) /* Branch Trace Store */ |
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92 | #define X86_FEATURE_SYSCALL32 ( 3*32+14) /* "" syscall in ia32 userspace */ |
- | |
93 | #define X86_FEATURE_SYSENTER32 ( 3*32+15) /* "" sysenter in ia32 userspace */ |
- | |
94 | #define X86_FEATURE_REP_GOOD ( 3*32+16) /* rep microcode works well */ |
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95 | #define X86_FEATURE_MFENCE_RDTSC ( 3*32+17) /* "" Mfence synchronizes RDTSC */ |
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96 | #define X86_FEATURE_LFENCE_RDTSC ( 3*32+18) /* "" Lfence synchronizes RDTSC */ |
- | |
97 | /* free, was #define X86_FEATURE_11AP ( 3*32+19) * "" Bad local APIC aka 11AP */ |
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98 | #define X86_FEATURE_NOPL ( 3*32+20) /* The NOPL (0F 1F) instructions */ |
- | |
99 | #define X86_FEATURE_ALWAYS ( 3*32+21) /* "" Always-present feature */ |
- | |
100 | #define X86_FEATURE_XTOPOLOGY ( 3*32+22) /* cpu topology enum extensions */ |
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101 | #define X86_FEATURE_TSC_RELIABLE ( 3*32+23) /* TSC is known to be reliable */ |
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102 | #define X86_FEATURE_NONSTOP_TSC ( 3*32+24) /* TSC does not stop in C states */ |
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103 | /* free, was #define X86_FEATURE_CLFLUSH_MONITOR ( 3*32+25) * "" clflush reqd with monitor */ |
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104 | #define X86_FEATURE_EXTD_APICID ( 3*32+26) /* has extended APICID (8 bits) */ |
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105 | #define X86_FEATURE_AMD_DCM ( 3*32+27) /* multi-node processor */ |
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106 | #define X86_FEATURE_APERFMPERF ( 3*32+28) /* APERFMPERF */ |
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107 | #define X86_FEATURE_EAGER_FPU ( 3*32+29) /* "eagerfpu" Non lazy FPU restore */ |
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108 | #define X86_FEATURE_NONSTOP_TSC_S3 ( 3*32+30) /* TSC doesn't stop in S3 state */ |
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109 | - | ||
110 | /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */ |
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111 | #define X86_FEATURE_XMM3 ( 4*32+ 0) /* "pni" SSE-3 */ |
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112 | #define X86_FEATURE_PCLMULQDQ ( 4*32+ 1) /* PCLMULQDQ instruction */ |
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113 | #define X86_FEATURE_DTES64 ( 4*32+ 2) /* 64-bit Debug Store */ |
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114 | #define X86_FEATURE_MWAIT ( 4*32+ 3) /* "monitor" Monitor/Mwait support */ |
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115 | #define X86_FEATURE_DSCPL ( 4*32+ 4) /* "ds_cpl" CPL Qual. Debug Store */ |
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116 | #define X86_FEATURE_VMX ( 4*32+ 5) /* Hardware virtualization */ |
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117 | #define X86_FEATURE_SMX ( 4*32+ 6) /* Safer mode */ |
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118 | #define X86_FEATURE_EST ( 4*32+ 7) /* Enhanced SpeedStep */ |
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119 | #define X86_FEATURE_TM2 ( 4*32+ 8) /* Thermal Monitor 2 */ |
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120 | #define X86_FEATURE_SSSE3 ( 4*32+ 9) /* Supplemental SSE-3 */ |
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121 | #define X86_FEATURE_CID ( 4*32+10) /* Context ID */ |
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122 | #define X86_FEATURE_SDBG ( 4*32+11) /* Silicon Debug */ |
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123 | #define X86_FEATURE_FMA ( 4*32+12) /* Fused multiply-add */ |
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124 | #define X86_FEATURE_CX16 ( 4*32+13) /* CMPXCHG16B */ |
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125 | #define X86_FEATURE_XTPR ( 4*32+14) /* Send Task Priority Messages */ |
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126 | #define X86_FEATURE_PDCM ( 4*32+15) /* Performance Capabilities */ |
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127 | #define X86_FEATURE_PCID ( 4*32+17) /* Process Context Identifiers */ |
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128 | #define X86_FEATURE_DCA ( 4*32+18) /* Direct Cache Access */ |
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129 | #define X86_FEATURE_XMM4_1 ( 4*32+19) /* "sse4_1" SSE-4.1 */ |
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130 | #define X86_FEATURE_XMM4_2 ( 4*32+20) /* "sse4_2" SSE-4.2 */ |
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131 | #define X86_FEATURE_X2APIC ( 4*32+21) /* x2APIC */ |
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132 | #define X86_FEATURE_MOVBE ( 4*32+22) /* MOVBE instruction */ |
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133 | #define X86_FEATURE_POPCNT ( 4*32+23) /* POPCNT instruction */ |
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134 | #define X86_FEATURE_TSC_DEADLINE_TIMER ( 4*32+24) /* Tsc deadline timer */ |
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135 | #define X86_FEATURE_AES ( 4*32+25) /* AES instructions */ |
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136 | #define X86_FEATURE_XSAVE ( 4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */ |
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137 | #define X86_FEATURE_OSXSAVE ( 4*32+27) /* "" XSAVE enabled in the OS */ |
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138 | #define X86_FEATURE_AVX ( 4*32+28) /* Advanced Vector Extensions */ |
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139 | #define X86_FEATURE_F16C ( 4*32+29) /* 16-bit fp conversions */ |
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140 | #define X86_FEATURE_RDRAND ( 4*32+30) /* The RDRAND instruction */ |
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141 | #define X86_FEATURE_HYPERVISOR ( 4*32+31) /* Running on a hypervisor */ |
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142 | - | ||
143 | /* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */ |
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144 | #define X86_FEATURE_XSTORE ( 5*32+ 2) /* "rng" RNG present (xstore) */ |
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145 | #define X86_FEATURE_XSTORE_EN ( 5*32+ 3) /* "rng_en" RNG enabled */ |
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146 | #define X86_FEATURE_XCRYPT ( 5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */ |
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147 | #define X86_FEATURE_XCRYPT_EN ( 5*32+ 7) /* "ace_en" on-CPU crypto enabled */ |
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148 | #define X86_FEATURE_ACE2 ( 5*32+ 8) /* Advanced Cryptography Engine v2 */ |
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149 | #define X86_FEATURE_ACE2_EN ( 5*32+ 9) /* ACE v2 enabled */ |
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150 | #define X86_FEATURE_PHE ( 5*32+10) /* PadLock Hash Engine */ |
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151 | #define X86_FEATURE_PHE_EN ( 5*32+11) /* PHE enabled */ |
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152 | #define X86_FEATURE_PMM ( 5*32+12) /* PadLock Montgomery Multiplier */ |
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153 | #define X86_FEATURE_PMM_EN ( 5*32+13) /* PMM enabled */ |
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154 | - | ||
155 | /* More extended AMD flags: CPUID level 0x80000001, ecx, word 6 */ |
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156 | #define X86_FEATURE_LAHF_LM ( 6*32+ 0) /* LAHF/SAHF in long mode */ |
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157 | #define X86_FEATURE_CMP_LEGACY ( 6*32+ 1) /* If yes HyperThreading not valid */ |
- | |
158 | #define X86_FEATURE_SVM ( 6*32+ 2) /* Secure virtual machine */ |
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159 | #define X86_FEATURE_EXTAPIC ( 6*32+ 3) /* Extended APIC space */ |
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160 | #define X86_FEATURE_CR8_LEGACY ( 6*32+ 4) /* CR8 in 32-bit mode */ |
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161 | #define X86_FEATURE_ABM ( 6*32+ 5) /* Advanced bit manipulation */ |
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162 | #define X86_FEATURE_SSE4A ( 6*32+ 6) /* SSE-4A */ |
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163 | #define X86_FEATURE_MISALIGNSSE ( 6*32+ 7) /* Misaligned SSE mode */ |
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164 | #define X86_FEATURE_3DNOWPREFETCH ( 6*32+ 8) /* 3DNow prefetch instructions */ |
- | |
165 | #define X86_FEATURE_OSVW ( 6*32+ 9) /* OS Visible Workaround */ |
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166 | #define X86_FEATURE_IBS ( 6*32+10) /* Instruction Based Sampling */ |
- | |
167 | #define X86_FEATURE_XOP ( 6*32+11) /* extended AVX instructions */ |
- | |
168 | #define X86_FEATURE_SKINIT ( 6*32+12) /* SKINIT/STGI instructions */ |
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169 | #define X86_FEATURE_WDT ( 6*32+13) /* Watchdog timer */ |
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170 | #define X86_FEATURE_LWP ( 6*32+15) /* Light Weight Profiling */ |
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171 | #define X86_FEATURE_FMA4 ( 6*32+16) /* 4 operands MAC instructions */ |
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172 | #define X86_FEATURE_TCE ( 6*32+17) /* translation cache extension */ |
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173 | #define X86_FEATURE_NODEID_MSR ( 6*32+19) /* NodeId MSR */ |
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174 | #define X86_FEATURE_TBM ( 6*32+21) /* trailing bit manipulations */ |
- | |
175 | #define X86_FEATURE_TOPOEXT ( 6*32+22) /* topology extensions CPUID leafs */ |
- | |
176 | #define X86_FEATURE_PERFCTR_CORE ( 6*32+23) /* core performance counter extensions */ |
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177 | #define X86_FEATURE_PERFCTR_NB ( 6*32+24) /* NB performance counter extensions */ |
- | |
178 | #define X86_FEATURE_BPEXT (6*32+26) /* data breakpoint extension */ |
- | |
179 | #define X86_FEATURE_PERFCTR_L2 ( 6*32+28) /* L2 performance counter extensions */ |
- | |
180 | #define X86_FEATURE_MWAITX ( 6*32+29) /* MWAIT extension (MONITORX/MWAITX) */ |
- | |
181 | - | ||
182 | /* |
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183 | * Auxiliary flags: Linux defined - For features scattered in various |
- | |
184 | * CPUID levels like 0x6, 0xA etc, word 7. |
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185 | * |
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186 | * Reuse free bits when adding new feature flags! |
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187 | */ |
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188 | - | ||
189 | #define X86_FEATURE_CPB ( 7*32+ 2) /* AMD Core Performance Boost */ |
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190 | #define X86_FEATURE_EPB ( 7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */ |
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191 | - | ||
192 | #define X86_FEATURE_HW_PSTATE ( 7*32+ 8) /* AMD HW-PState */ |
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193 | #define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */ |
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194 | - | ||
195 | #define X86_FEATURE_INTEL_PT ( 7*32+15) /* Intel Processor Trace */ |
- | |
196 | - | ||
197 | /* Virtualization flags: Linux defined, word 8 */ |
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198 | #define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */ |
- | |
199 | #define X86_FEATURE_VNMI ( 8*32+ 1) /* Intel Virtual NMI */ |
- | |
200 | #define X86_FEATURE_FLEXPRIORITY ( 8*32+ 2) /* Intel FlexPriority */ |
- | |
201 | #define X86_FEATURE_EPT ( 8*32+ 3) /* Intel Extended Page Table */ |
- | |
202 | #define X86_FEATURE_VPID ( 8*32+ 4) /* Intel Virtual Processor ID */ |
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203 | - | ||
204 | #define X86_FEATURE_VMMCALL ( 8*32+15) /* Prefer vmmcall to vmcall */ |
- | |
205 | #define X86_FEATURE_XENPV ( 8*32+16) /* "" Xen paravirtual guest */ |
- | |
206 | - | ||
207 | - | ||
208 | /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */ |
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209 | #define X86_FEATURE_FSGSBASE ( 9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/ |
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210 | #define X86_FEATURE_TSC_ADJUST ( 9*32+ 1) /* TSC adjustment MSR 0x3b */ |
- | |
211 | #define X86_FEATURE_BMI1 ( 9*32+ 3) /* 1st group bit manipulation extensions */ |
- | |
212 | #define X86_FEATURE_HLE ( 9*32+ 4) /* Hardware Lock Elision */ |
- | |
213 | #define X86_FEATURE_AVX2 ( 9*32+ 5) /* AVX2 instructions */ |
- | |
214 | #define X86_FEATURE_SMEP ( 9*32+ 7) /* Supervisor Mode Execution Protection */ |
- | |
215 | #define X86_FEATURE_BMI2 ( 9*32+ 8) /* 2nd group bit manipulation extensions */ |
- | |
216 | #define X86_FEATURE_ERMS ( 9*32+ 9) /* Enhanced REP MOVSB/STOSB */ |
- | |
217 | #define X86_FEATURE_INVPCID ( 9*32+10) /* Invalidate Processor Context ID */ |
- | |
218 | #define X86_FEATURE_RTM ( 9*32+11) /* Restricted Transactional Memory */ |
- | |
219 | #define X86_FEATURE_CQM ( 9*32+12) /* Cache QoS Monitoring */ |
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220 | #define X86_FEATURE_MPX ( 9*32+14) /* Memory Protection Extension */ |
- | |
221 | #define X86_FEATURE_AVX512F ( 9*32+16) /* AVX-512 Foundation */ |
- | |
222 | #define X86_FEATURE_RDSEED ( 9*32+18) /* The RDSEED instruction */ |
- | |
223 | #define X86_FEATURE_ADX ( 9*32+19) /* The ADCX and ADOX instructions */ |
- | |
224 | #define X86_FEATURE_SMAP ( 9*32+20) /* Supervisor Mode Access Prevention */ |
- | |
225 | #define X86_FEATURE_PCOMMIT ( 9*32+22) /* PCOMMIT instruction */ |
- | |
226 | #define X86_FEATURE_CLFLUSHOPT ( 9*32+23) /* CLFLUSHOPT instruction */ |
- | |
227 | #define X86_FEATURE_CLWB ( 9*32+24) /* CLWB instruction */ |
- | |
228 | #define X86_FEATURE_AVX512PF ( 9*32+26) /* AVX-512 Prefetch */ |
- | |
229 | #define X86_FEATURE_AVX512ER ( 9*32+27) /* AVX-512 Exponential and Reciprocal */ |
- | |
230 | #define X86_FEATURE_AVX512CD ( 9*32+28) /* AVX-512 Conflict Detection */ |
- | |
231 | #define X86_FEATURE_SHA_NI ( 9*32+29) /* SHA1/SHA256 Instruction Extensions */ |
- | |
232 | - | ||
233 | /* Extended state features, CPUID level 0x0000000d:1 (eax), word 10 */ |
- | |
234 | #define X86_FEATURE_XSAVEOPT (10*32+ 0) /* XSAVEOPT */ |
- | |
235 | #define X86_FEATURE_XSAVEC (10*32+ 1) /* XSAVEC */ |
- | |
236 | #define X86_FEATURE_XGETBV1 (10*32+ 2) /* XGETBV with ECX = 1 */ |
- | |
237 | #define X86_FEATURE_XSAVES (10*32+ 3) /* XSAVES/XRSTORS */ |
- | |
238 | - | ||
239 | /* Intel-defined CPU QoS Sub-leaf, CPUID level 0x0000000F:0 (edx), word 11 */ |
- | |
240 | #define X86_FEATURE_CQM_LLC (11*32+ 1) /* LLC QoS if 1 */ |
- | |
241 | - | ||
242 | /* Intel-defined CPU QoS Sub-leaf, CPUID level 0x0000000F:1 (edx), word 12 */ |
- | |
243 | #define X86_FEATURE_CQM_OCCUP_LLC (12*32+ 0) /* LLC occupancy monitoring if 1 */ |
- | |
244 | - | ||
245 | /* AMD-defined CPU features, CPUID level 0x80000008 (ebx), word 13 */ |
- | |
246 | #define X86_FEATURE_CLZERO (13*32+0) /* CLZERO instruction */ |
- | |
247 | - | ||
248 | /* Thermal and Power Management Leaf, CPUID level 0x00000006 (eax), word 14 */ |
- | |
249 | #define X86_FEATURE_DTHERM (14*32+ 0) /* Digital Thermal Sensor */ |
- | |
250 | #define X86_FEATURE_IDA (14*32+ 1) /* Intel Dynamic Acceleration */ |
- | |
251 | #define X86_FEATURE_ARAT (14*32+ 2) /* Always Running APIC Timer */ |
- | |
252 | #define X86_FEATURE_PLN (14*32+ 4) /* Intel Power Limit Notification */ |
- | |
253 | #define X86_FEATURE_PTS (14*32+ 6) /* Intel Package Thermal Status */ |
- | |
254 | #define X86_FEATURE_HWP (14*32+ 7) /* Intel Hardware P-states */ |
- | |
255 | #define X86_FEATURE_HWP_NOTIFY (14*32+ 8) /* HWP Notification */ |
- | |
256 | #define X86_FEATURE_HWP_ACT_WINDOW (14*32+ 9) /* HWP Activity Window */ |
- | |
257 | #define X86_FEATURE_HWP_EPP (14*32+10) /* HWP Energy Perf. Preference */ |
- | |
258 | #define X86_FEATURE_HWP_PKG_REQ (14*32+11) /* HWP Package Level Request */ |
- | |
259 | - | ||
260 | /* AMD SVM Feature Identification, CPUID level 0x8000000a (edx), word 15 */ |
- | |
261 | #define X86_FEATURE_NPT (15*32+ 0) /* Nested Page Table support */ |
- | |
262 | #define X86_FEATURE_LBRV (15*32+ 1) /* LBR Virtualization support */ |
- | |
263 | #define X86_FEATURE_SVML (15*32+ 2) /* "svm_lock" SVM locking MSR */ |
- | |
264 | #define X86_FEATURE_NRIPS (15*32+ 3) /* "nrip_save" SVM next_rip save */ |
- | |
265 | #define X86_FEATURE_TSCRATEMSR (15*32+ 4) /* "tsc_scale" TSC scaling support */ |
- | |
266 | #define X86_FEATURE_VMCBCLEAN (15*32+ 5) /* "vmcb_clean" VMCB clean bits support */ |
- | |
267 | #define X86_FEATURE_FLUSHBYASID (15*32+ 6) /* flush-by-ASID support */ |
- | |
268 | #define X86_FEATURE_DECODEASSISTS (15*32+ 7) /* Decode Assists support */ |
- | |
269 | #define X86_FEATURE_PAUSEFILTER (15*32+10) /* filtered pause intercept */ |
- | |
270 | #define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */ |
- | |
271 | - | ||
272 | /* |
- | |
273 | * BUG word(s) |
- | |
274 | */ |
- | |
275 | #define X86_BUG(x) (NCAPINTS*32 + (x)) |
- | |
276 | - | ||
277 | #define X86_BUG_F00F X86_BUG(0) /* Intel F00F */ |
- | |
278 | #define X86_BUG_FDIV X86_BUG(1) /* FPU FDIV */ |
- | |
279 | #define X86_BUG_COMA X86_BUG(2) /* Cyrix 6x86 coma */ |
- | |
280 | #define X86_BUG_AMD_TLB_MMATCH X86_BUG(3) /* "tlb_mmatch" AMD Erratum 383 */ |
- | |
281 | #define X86_BUG_AMD_APIC_C1E X86_BUG(4) /* "apic_c1e" AMD Erratum 400 */ |
- | |
282 | #define X86_BUG_11AP X86_BUG(5) /* Bad local APIC aka 11AP */ |
- | |
283 | #define X86_BUG_FXSAVE_LEAK X86_BUG(6) /* FXSAVE leaks FOP/FIP/FOP */ |
- | |
284 | #define X86_BUG_CLFLUSH_MONITOR X86_BUG(7) /* AAI65, CLFLUSH required before MONITOR */ |
- | |
Line 285... | Line 4... | ||
285 | #define X86_BUG_SYSRET_SS_ATTRS X86_BUG(8) /* SYSRET doesn't fix up SS attrs */ |
4 | #include |
Line 286... | Line 5... | ||
286 | 5 | ||
287 | #if defined(__KERNEL__) && !defined(__ASSEMBLY__) |
6 | #if defined(__KERNEL__) && !defined(__ASSEMBLY__) |
Line 305... | Line 24... | ||
305 | CPUID_F_0_EDX, |
24 | CPUID_F_0_EDX, |
306 | CPUID_F_1_EDX, |
25 | CPUID_F_1_EDX, |
307 | CPUID_8000_0008_EBX, |
26 | CPUID_8000_0008_EBX, |
308 | CPUID_6_EAX, |
27 | CPUID_6_EAX, |
309 | CPUID_8000_000A_EDX, |
28 | CPUID_8000_000A_EDX, |
- | 29 | CPUID_7_ECX, |
|
310 | }; |
30 | }; |
Line 311... | Line 31... | ||
311 | 31 | ||
312 | #ifdef CONFIG_X86_FEATURE_NAMES |
32 | #ifdef CONFIG_X86_FEATURE_NAMES |
313 | extern const char * const x86_cap_flags[NCAPINTS*32]; |
33 | extern const char * const x86_cap_flags[NCAPINTS*32]; |
Line 336... | Line 56... | ||
336 | (((bit)>>5)==4 && (1UL<<((bit)&31) & REQUIRED_MASK4)) || \ |
56 | (((bit)>>5)==4 && (1UL<<((bit)&31) & REQUIRED_MASK4 )) || \ |
337 | (((bit)>>5)==5 && (1UL<<((bit)&31) & REQUIRED_MASK5)) || \ |
57 | (((bit)>>5)==5 && (1UL<<((bit)&31) & REQUIRED_MASK5 )) || \ |
338 | (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) || \ |
58 | (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6 )) || \ |
339 | (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) || \ |
59 | (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7 )) || \ |
340 | (((bit)>>5)==8 && (1UL<<((bit)&31) & REQUIRED_MASK8)) || \ |
60 | (((bit)>>5)==8 && (1UL<<((bit)&31) & REQUIRED_MASK8 )) || \ |
- | 61 | (((bit)>>5)==9 && (1UL<<((bit)&31) & REQUIRED_MASK9 )) || \ |
|
- | 62 | (((bit)>>5)==10 && (1UL<<((bit)&31) & REQUIRED_MASK10)) || \ |
|
- | 63 | (((bit)>>5)==11 && (1UL<<((bit)&31) & REQUIRED_MASK11)) || \ |
|
- | 64 | (((bit)>>5)==12 && (1UL<<((bit)&31) & REQUIRED_MASK12)) || \ |
|
- | 65 | (((bit)>>5)==13 && (1UL<<((bit)&31) & REQUIRED_MASK13)) || \ |
|
- | 66 | (((bit)>>5)==14 && (1UL<<((bit)&31) & REQUIRED_MASK14)) || \ |
|
- | 67 | (((bit)>>5)==15 && (1UL<<((bit)&31) & REQUIRED_MASK15)) || \ |
|
341 | (((bit)>>5)==9 && (1UL<<((bit)&31) & REQUIRED_MASK9)) ) |
68 | (((bit)>>5)==16 && (1UL<<((bit)&31) & REQUIRED_MASK16)) ) |
Line 342... | Line 69... | ||
342 | 69 | ||
343 | #define DISABLED_MASK_BIT_SET(bit) \ |
70 | #define DISABLED_MASK_BIT_SET(bit) \ |
344 | ( (((bit)>>5)==0 && (1UL<<((bit)&31) & DISABLED_MASK0)) || \ |
71 | ( (((bit)>>5)==0 && (1UL<<((bit)&31) & DISABLED_MASK0 )) || \ |
345 | (((bit)>>5)==1 && (1UL<<((bit)&31) & DISABLED_MASK1)) || \ |
72 | (((bit)>>5)==1 && (1UL<<((bit)&31) & DISABLED_MASK1 )) || \ |
Line 348... | Line 75... | ||
348 | (((bit)>>5)==4 && (1UL<<((bit)&31) & DISABLED_MASK4)) || \ |
75 | (((bit)>>5)==4 && (1UL<<((bit)&31) & DISABLED_MASK4 )) || \ |
349 | (((bit)>>5)==5 && (1UL<<((bit)&31) & DISABLED_MASK5)) || \ |
76 | (((bit)>>5)==5 && (1UL<<((bit)&31) & DISABLED_MASK5 )) || \ |
350 | (((bit)>>5)==6 && (1UL<<((bit)&31) & DISABLED_MASK6)) || \ |
77 | (((bit)>>5)==6 && (1UL<<((bit)&31) & DISABLED_MASK6 )) || \ |
351 | (((bit)>>5)==7 && (1UL<<((bit)&31) & DISABLED_MASK7)) || \ |
78 | (((bit)>>5)==7 && (1UL<<((bit)&31) & DISABLED_MASK7 )) || \ |
352 | (((bit)>>5)==8 && (1UL<<((bit)&31) & DISABLED_MASK8)) || \ |
79 | (((bit)>>5)==8 && (1UL<<((bit)&31) & DISABLED_MASK8 )) || \ |
- | 80 | (((bit)>>5)==9 && (1UL<<((bit)&31) & DISABLED_MASK9 )) || \ |
|
- | 81 | (((bit)>>5)==10 && (1UL<<((bit)&31) & DISABLED_MASK10)) || \ |
|
- | 82 | (((bit)>>5)==11 && (1UL<<((bit)&31) & DISABLED_MASK11)) || \ |
|
- | 83 | (((bit)>>5)==12 && (1UL<<((bit)&31) & DISABLED_MASK12)) || \ |
|
- | 84 | (((bit)>>5)==13 && (1UL<<((bit)&31) & DISABLED_MASK13)) || \ |
|
- | 85 | (((bit)>>5)==14 && (1UL<<((bit)&31) & DISABLED_MASK14)) || \ |
|
- | 86 | (((bit)>>5)==15 && (1UL<<((bit)&31) & DISABLED_MASK15)) || \ |
|
353 | (((bit)>>5)==9 && (1UL<<((bit)&31) & DISABLED_MASK9)) ) |
87 | (((bit)>>5)==16 && (1UL<<((bit)&31) & DISABLED_MASK16)) ) |
Line 354... | Line 88... | ||
354 | 88 | ||
355 | #define cpu_has(c, bit) \ |
89 | #define cpu_has(c, bit) \ |
356 | (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ |
90 | (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ |
Line 367... | Line 101... | ||
367 | * testing of CPU features, like in hypervisor code where you are |
101 | * testing of CPU features, like in hypervisor code where you are |
368 | * supporting a possible guest feature where host support for it |
102 | * supporting a possible guest feature where host support for it |
369 | * is not relevant. |
103 | * is not relevant. |
370 | */ |
104 | */ |
371 | #define cpu_feature_enabled(bit) \ |
105 | #define cpu_feature_enabled(bit) \ |
372 | (__builtin_constant_p(bit) && DISABLED_MASK_BIT_SET(bit) ? 0 : \ |
106 | (__builtin_constant_p(bit) && DISABLED_MASK_BIT_SET(bit) ? 0 : static_cpu_has(bit)) |
373 | cpu_has(&boot_cpu_data, bit)) |
- | |
Line 374... | Line 107... | ||
374 | 107 | ||
Line 375... | Line 108... | ||
375 | #define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit) |
108 | #define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit) |
376 | 109 | ||
Line 404... | Line 137... | ||
404 | #define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE) |
137 | #define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE) |
405 | #define cpu_has_xsaves boot_cpu_has(X86_FEATURE_XSAVES) |
138 | #define cpu_has_xsaves boot_cpu_has(X86_FEATURE_XSAVES) |
406 | #define cpu_has_osxsave boot_cpu_has(X86_FEATURE_OSXSAVE) |
139 | #define cpu_has_osxsave boot_cpu_has(X86_FEATURE_OSXSAVE) |
407 | #define cpu_has_hypervisor boot_cpu_has(X86_FEATURE_HYPERVISOR) |
140 | #define cpu_has_hypervisor boot_cpu_has(X86_FEATURE_HYPERVISOR) |
408 | /* |
141 | /* |
409 | * Do not add any more of those clumsy macros - use static_cpu_has_safe() for |
142 | * Do not add any more of those clumsy macros - use static_cpu_has() for |
410 | * fast paths and boot_cpu_has() otherwise! |
143 | * fast paths and boot_cpu_has() otherwise! |
411 | */ |
144 | */ |
Line 412... | Line 145... | ||
412 | 145 | ||
413 | #if __GNUC__ >= 4 && defined(CONFIG_X86_FAST_FEATURE_TESTS) |
- | |
414 | extern void warn_pre_alternatives(void); |
- | |
415 | extern bool __static_cpu_has_safe(u16 bit); |
- | |
416 | 146 | #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_X86_FAST_FEATURE_TESTS) |
|
417 | /* |
147 | /* |
418 | * Static testing of CPU features. Used the same as boot_cpu_has(). |
- | |
419 | * These are only valid after alternatives have run, but will statically |
148 | * Static testing of CPU features. Used the same as boot_cpu_has(). |
420 | * patch the target code for additional performance. |
- | |
421 | */ |
- | |
422 | static __always_inline __pure bool __static_cpu_has(u16 bit) |
- | |
423 | { |
- | |
424 | #ifdef CC_HAVE_ASM_GOTO |
- | |
425 | - | ||
426 | #ifdef CONFIG_X86_DEBUG_STATIC_CPU_HAS |
- | |
427 | - | ||
428 | /* |
- | |
429 | * Catch too early usage of this before alternatives |
149 | * These will statically patch the target code for additional |
430 | * have run. |
150 | * performance. |
431 | */ |
- | |
432 | asm_volatile_goto("1: jmp %l[t_warn]\n" |
- | |
433 | "2:\n" |
- | |
434 | ".section .altinstructions,\"a\"\n" |
- | |
435 | " .long 1b - .\n" |
- | |
436 | " .long 0\n" /* no replacement */ |
- | |
437 | " .word %P0\n" /* 1: do replace */ |
- | |
438 | " .byte 2b - 1b\n" /* source len */ |
- | |
439 | " .byte 0\n" /* replacement len */ |
- | |
440 | " .byte 0\n" /* pad len */ |
- | |
441 | ".previous\n" |
- | |
442 | /* skipping size check since replacement size = 0 */ |
- | |
443 | : : "i" (X86_FEATURE_ALWAYS) : : t_warn); |
- | |
444 | - | ||
445 | #endif |
- | |
446 | - | ||
447 | asm_volatile_goto("1: jmp %l[t_no]\n" |
- | |
448 | "2:\n" |
- | |
449 | ".section .altinstructions,\"a\"\n" |
- | |
450 | " .long 1b - .\n" |
- | |
451 | " .long 0\n" /* no replacement */ |
- | |
452 | " .word %P0\n" /* feature bit */ |
- | |
453 | " .byte 2b - 1b\n" /* source len */ |
- | |
454 | " .byte 0\n" /* replacement len */ |
- | |
455 | " .byte 0\n" /* pad len */ |
- | |
456 | ".previous\n" |
- | |
457 | /* skipping size check since replacement size = 0 */ |
- | |
458 | : : "i" (bit) : : t_no); |
- | |
459 | return true; |
- | |
460 | t_no: |
- | |
461 | return false; |
- | |
462 | - | ||
463 | #ifdef CONFIG_X86_DEBUG_STATIC_CPU_HAS |
- | |
464 | t_warn: |
- | |
465 | warn_pre_alternatives(); |
- | |
466 | return false; |
- | |
467 | #endif |
- | |
468 | - | ||
469 | #else /* CC_HAVE_ASM_GOTO */ |
- | |
470 | - | ||
471 | u8 flag; |
- | |
472 | /* Open-coded due to __stringify() in ALTERNATIVE() */ |
- | |
473 | asm volatile("1: movb $0,%0\n" |
- | |
474 | "2:\n" |
- | |
475 | ".section .altinstructions,\"a\"\n" |
- | |
476 | " .long 1b - .\n" |
- | |
477 | " .long 3f - .\n" |
- | |
478 | " .word %P1\n" /* feature bit */ |
- | |
479 | " .byte 2b - 1b\n" /* source len */ |
- | |
480 | " .byte 4f - 3f\n" /* replacement len */ |
- | |
481 | " .byte 0\n" /* pad len */ |
- | |
482 | ".previous\n" |
- | |
483 | ".section .discard,\"aw\",@progbits\n" |
- | |
484 | " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */ |
- | |
485 | ".previous\n" |
- | |
486 | ".section .altinstr_replacement,\"ax\"\n" |
- | |
487 | "3: movb $1,%0\n" |
- | |
488 | "4:\n" |
- | |
489 | ".previous\n" |
- | |
490 | : "=qm" (flag) : "i" (bit)); |
- | |
491 | return flag; |
- | |
492 | - | ||
493 | #endif /* CC_HAVE_ASM_GOTO */ |
- | |
494 | } |
- | |
495 | - | ||
496 | #define static_cpu_has(bit) \ |
- | |
497 | ( \ |
- | |
498 | __builtin_constant_p(boot_cpu_has(bit)) ? \ |
- | |
499 | boot_cpu_has(bit) : \ |
- | |
500 | __builtin_constant_p(bit) ? \ |
- | |
501 | __static_cpu_has(bit) : \ |
- | |
502 | boot_cpu_has(bit) \ |
- | |
503 | ) |
- | |
504 | 151 | */ |
|
505 | static __always_inline __pure bool _static_cpu_has_safe(u16 bit) |
152 | static __always_inline __pure bool _static_cpu_has(u16 bit) |
506 | { |
- | |
507 | #ifdef CC_HAVE_ASM_GOTO |
153 | { |
508 | asm_volatile_goto("1: jmp %l[t_dynamic]\n" |
154 | asm_volatile_goto("1: jmp 6f\n" |
509 | "2:\n" |
155 | "2:\n" |
510 | ".skip -(((5f-4f) - (2b-1b)) > 0) * " |
156 | ".skip -(((5f-4f) - (2b-1b)) > 0) * " |
511 | "((5f-4f) - (2b-1b)),0x90\n" |
157 | "((5f-4f) - (2b-1b)),0x90\n" |
512 | "3:\n" |
158 | "3:\n" |
Line 528... | Line 174... | ||
528 | " .word %P0\n" /* feature bit */ |
174 | " .word %P0\n" /* feature bit */ |
529 | " .byte 3b - 1b\n" /* src len */ |
175 | " .byte 3b - 1b\n" /* src len */ |
530 | " .byte 0\n" /* repl len */ |
176 | " .byte 0\n" /* repl len */ |
531 | " .byte 0\n" /* pad len */ |
177 | " .byte 0\n" /* pad len */ |
532 | ".previous\n" |
178 | ".previous\n" |
- | 179 | ".section .altinstr_aux,\"ax\"\n" |
|
- | 180 | "6:\n" |
|
- | 181 | " testb %[bitnum],%[cap_byte]\n" |
|
- | 182 | " jnz %l[t_yes]\n" |
|
- | 183 | " jmp %l[t_no]\n" |
|
- | 184 | ".previous\n" |
|
533 | : : "i" (bit), "i" (X86_FEATURE_ALWAYS) |
185 | : : "i" (bit), "i" (X86_FEATURE_ALWAYS), |
- | 186 | [bitnum] "i" (1 << (bit & 7)), |
|
- | 187 | [cap_byte] "m" (((const char *)boot_cpu_data.x86_capability)[bit >> 3]) |
|
534 | : : t_dynamic, t_no); |
188 | : : t_yes, t_no); |
- | 189 | t_yes: |
|
535 | return true; |
190 | return true; |
536 | t_no: |
191 | t_no: |
537 | return false; |
192 | return false; |
538 | t_dynamic: |
- | |
539 | return __static_cpu_has_safe(bit); |
- | |
540 | #else |
- | |
541 | u8 flag; |
- | |
542 | /* Open-coded due to __stringify() in ALTERNATIVE() */ |
- | |
543 | asm volatile("1: movb $2,%0\n" |
- | |
544 | "2:\n" |
- | |
545 | ".section .altinstructions,\"a\"\n" |
- | |
546 | " .long 1b - .\n" /* src offset */ |
- | |
547 | " .long 3f - .\n" /* repl offset */ |
- | |
548 | " .word %P2\n" /* always replace */ |
- | |
549 | " .byte 2b - 1b\n" /* source len */ |
- | |
550 | " .byte 4f - 3f\n" /* replacement len */ |
- | |
551 | " .byte 0\n" /* pad len */ |
- | |
552 | ".previous\n" |
- | |
553 | ".section .discard,\"aw\",@progbits\n" |
- | |
554 | " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */ |
- | |
555 | ".previous\n" |
- | |
556 | ".section .altinstr_replacement,\"ax\"\n" |
- | |
557 | "3: movb $0,%0\n" |
- | |
558 | "4:\n" |
- | |
559 | ".previous\n" |
- | |
560 | ".section .altinstructions,\"a\"\n" |
- | |
561 | " .long 1b - .\n" /* src offset */ |
- | |
562 | " .long 5f - .\n" /* repl offset */ |
- | |
563 | " .word %P1\n" /* feature bit */ |
- | |
564 | " .byte 4b - 3b\n" /* src len */ |
- | |
565 | " .byte 6f - 5f\n" /* repl len */ |
- | |
566 | " .byte 0\n" /* pad len */ |
- | |
567 | ".previous\n" |
- | |
568 | ".section .discard,\"aw\",@progbits\n" |
- | |
569 | " .byte 0xff + (6f-5f) - (4b-3b)\n" /* size check */ |
- | |
570 | ".previous\n" |
- | |
571 | ".section .altinstr_replacement,\"ax\"\n" |
- | |
572 | "5: movb $1,%0\n" |
- | |
573 | "6:\n" |
- | |
574 | ".previous\n" |
- | |
575 | : "=qm" (flag) |
- | |
576 | : "i" (bit), "i" (X86_FEATURE_ALWAYS)); |
- | |
577 | return (flag == 2 ? __static_cpu_has_safe(bit) : flag); |
- | |
578 | #endif /* CC_HAVE_ASM_GOTO */ |
- | |
579 | } |
193 | } |
Line 580... | Line 194... | ||
580 | 194 | ||
581 | #define static_cpu_has_safe(bit) \ |
195 | #define static_cpu_has(bit) \ |
582 | ( \ |
196 | ( \ |
583 | __builtin_constant_p(boot_cpu_has(bit)) ? \ |
197 | __builtin_constant_p(boot_cpu_has(bit)) ? \ |
584 | boot_cpu_has(bit) : \ |
198 | boot_cpu_has(bit) : \ |
585 | _static_cpu_has_safe(bit) \ |
199 | _static_cpu_has(bit) \ |
586 | ) |
200 | ) |
587 | #else |
201 | #else |
588 | /* |
202 | /* |
- | 203 | * Fall back to dynamic for gcc versions which don't support asm goto. Should be |
|
589 | * gcc 3.x is too stupid to do the static test; fall back to dynamic. |
204 | * a minority now anyway. |
590 | */ |
205 | */ |
591 | #define static_cpu_has(bit) boot_cpu_has(bit) |
- | |
592 | #define static_cpu_has_safe(bit) boot_cpu_has(bit) |
206 | #define static_cpu_has(bit) boot_cpu_has(bit) |
Line 593... | Line 207... | ||
593 | #endif |
207 | #endif |
594 | 208 | ||
595 | #define cpu_has_bug(c, bit) cpu_has(c, (bit)) |
209 | #define cpu_has_bug(c, bit) cpu_has(c, (bit)) |
Line 596... | Line 210... | ||
596 | #define set_cpu_bug(c, bit) set_cpu_cap(c, (bit)) |
210 | #define set_cpu_bug(c, bit) set_cpu_cap(c, (bit)) |
597 | #define clear_cpu_bug(c, bit) clear_cpu_cap(c, (bit)) |
- | |
598 | 211 | #define clear_cpu_bug(c, bit) clear_cpu_cap(c, (bit)) |
|
Line 599... | Line 212... | ||
599 | #define static_cpu_has_bug(bit) static_cpu_has((bit)) |
212 | |
600 | #define static_cpu_has_bug_safe(bit) static_cpu_has_safe((bit)) |
213 | #define static_cpu_has_bug(bit) static_cpu_has((bit)) |