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/*
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 * Defines x86 CPU feature bits
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 */
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#ifndef _ASM_X86_CPUFEATURE_H
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#ifndef _ASM_X86_CPUFEATURE_H
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#define _ASM_X86_CPUFEATURE_H
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#define _ASM_X86_CPUFEATURE_H
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#ifndef _ASM_X86_REQUIRED_FEATURES_H
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#include 
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#endif
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10
 
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#ifndef _ASM_X86_DISABLED_FEATURES_H
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#include 
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#endif
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14
 
-
 
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#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
 
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18
/*
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19
 * Note: If the comment begins with a quoted string, that string is used
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 * in /proc/cpuinfo instead of the macro name.  If the string is "",
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 * this feature bit is not displayed in /proc/cpuinfo at all.
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22
 */
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23
 
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/* 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 */
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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) */
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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 */
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93
#define X86_FEATURE_SYSENTER32	( 3*32+15) /* "" sysenter in ia32 userspace */
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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 */
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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 */
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99
#define X86_FEATURE_ALWAYS	( 3*32+21) /* "" Always-present feature */
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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
 
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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 */
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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 */
-
 
166
#define X86_FEATURE_IBS		( 6*32+10) /* Instruction Based Sampling */
-
 
167
#define X86_FEATURE_XOP		( 6*32+11) /* extended AVX instructions */
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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 */
-
 
170
#define X86_FEATURE_LWP		( 6*32+15) /* Light Weight Profiling */
-
 
171
#define X86_FEATURE_FMA4	( 6*32+16) /* 4 operands MAC instructions */
-
 
172
#define X86_FEATURE_TCE		( 6*32+17) /* translation cache extension */
-
 
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 */
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175
#define X86_FEATURE_TOPOEXT	( 6*32+22) /* topology extensions CPUID leafs */
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176
#define X86_FEATURE_PERFCTR_CORE ( 6*32+23) /* core performance counter extensions */
-
 
177
#define X86_FEATURE_PERFCTR_NB  ( 6*32+24) /* NB performance counter extensions */
-
 
178
#define X86_FEATURE_BPEXT	(6*32+26) /* data breakpoint extension */
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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
/*
-
 
183
 * Auxiliary flags: Linux defined - For features scattered in various
-
 
184
 * CPUID levels like 0x6, 0xA etc, word 7.
-
 
185
 *
-
 
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 */
-
 
191
 
-
 
192
#define X86_FEATURE_HW_PSTATE	( 7*32+ 8) /* AMD HW-PState */
-
 
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 */
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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 */
-
 
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 */
-
 
209
#define X86_FEATURE_FSGSBASE	( 9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
-
 
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 */
-
 
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))