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/* * cpufeature.h * * Defines x86 CPU feature bits */ #ifndef __ASM_I386_CPUFEATURE_H #define __ASM_I386_CPUFEATURE_H #include <linux/bitops.h> #define NCAPINTS 7 /* N 32-bit words worth of info */ /* Intel-defined CPU features, CPUID level 0x00000001 (edx), word 0 */ #define X86_FEATURE_FPU (0*32+ 0) /* Onboard FPU */ #define X86_FEATURE_VME (0*32+ 1) /* Virtual Mode Extensions */ #define X86_FEATURE_DE (0*32+ 2) /* Debugging Extensions */ #define X86_FEATURE_PSE (0*32+ 3) /* Page Size Extensions */ #define X86_FEATURE_TSC (0*32+ 4) /* Time Stamp Counter */ #define X86_FEATURE_MSR (0*32+ 5) /* Model-Specific Registers, RDMSR, WRMSR */ #define X86_FEATURE_PAE (0*32+ 6) /* Physical Address Extensions */ #define X86_FEATURE_MCE (0*32+ 7) /* Machine Check Architecture */ #define X86_FEATURE_CX8 (0*32+ 8) /* CMPXCHG8 instruction */ #define X86_FEATURE_APIC (0*32+ 9) /* Onboard APIC */ #define X86_FEATURE_SEP (0*32+11) /* SYSENTER/SYSEXIT */ #define X86_FEATURE_MTRR (0*32+12) /* Memory Type Range Registers */ #define X86_FEATURE_PGE (0*32+13) /* Page Global Enable */ #define X86_FEATURE_MCA (0*32+14) /* Machine Check Architecture */ #define X86_FEATURE_CMOV (0*32+15) /* CMOV instruction (FCMOVCC and FCOMI too if FPU present) */ #define X86_FEATURE_PAT (0*32+16) /* Page Attribute Table */ #define X86_FEATURE_PSE36 (0*32+17) /* 36-bit PSEs */ #define X86_FEATURE_PN (0*32+18) /* Processor serial number */ #define X86_FEATURE_CLFLSH (0*32+19) /* Supports the CLFLUSH instruction */ #define X86_FEATURE_DTES (0*32+21) /* Debug Trace Store */ #define X86_FEATURE_ACPI (0*32+22) /* ACPI via MSR */ #define X86_FEATURE_MMX (0*32+23) /* Multimedia Extensions */ #define X86_FEATURE_FXSR (0*32+24) /* FXSAVE and FXRSTOR instructions (fast save and restore */ /* of FPU context), and CR4.OSFXSR available */ #define X86_FEATURE_XMM (0*32+25) /* Streaming SIMD Extensions */ #define X86_FEATURE_XMM2 (0*32+26) /* Streaming SIMD Extensions-2 */ #define X86_FEATURE_SELFSNOOP (0*32+27) /* CPU self snoop */ #define X86_FEATURE_HT (0*32+28) /* Hyper-Threading */ #define X86_FEATURE_ACC (0*32+29) /* Automatic clock control */ #define X86_FEATURE_IA64 (0*32+30) /* IA-64 processor */ /* AMD-defined CPU features, CPUID level 0x80000001, word 1 */ /* Don't duplicate feature flags which are redundant with Intel! */ #define X86_FEATURE_SYSCALL (1*32+11) /* SYSCALL/SYSRET */ #define X86_FEATURE_MP (1*32+19) /* MP Capable. */ #define X86_FEATURE_NX (1*32+20) /* Execute Disable */ #define X86_FEATURE_MMXEXT (1*32+22) /* AMD MMX extensions */ #define X86_FEATURE_LM (1*32+29) /* Long Mode (x86-64) */ #define X86_FEATURE_3DNOWEXT (1*32+30) /* AMD 3DNow! extensions */ #define X86_FEATURE_3DNOW (1*32+31) /* 3DNow! */ /* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */ #define X86_FEATURE_RECOVERY (2*32+ 0) /* CPU in recovery mode */ #define X86_FEATURE_LONGRUN (2*32+ 1) /* Longrun power control */ #define X86_FEATURE_LRTI (2*32+ 3) /* LongRun table interface */ /* Other features, Linux-defined mapping, word 3 */ /* This range is used for feature bits which conflict or are synthesized */ #define X86_FEATURE_CXMMX (3*32+ 0) /* Cyrix MMX extensions */ #define X86_FEATURE_K6_MTRR (3*32+ 1) /* AMD K6 nonstandard MTRRs */ #define X86_FEATURE_CYRIX_ARR (3*32+ 2) /* Cyrix ARRs (= MTRRs) */ #define X86_FEATURE_CENTAUR_MCR (3*32+ 3) /* Centaur MCRs (= MTRRs) */ /* cpu types for specific tunings: */ #define X86_FEATURE_K8 (3*32+ 4) /* Opteron, Athlon64 */ #define X86_FEATURE_K7 (3*32+ 5) /* Athlon */ #define X86_FEATURE_P3 (3*32+ 6) /* P3 */ #define X86_FEATURE_P4 (3*32+ 7) /* P4 */ #define X86_FEATURE_CONSTANT_TSC (3*32+ 8) /* TSC ticks at a constant rate */ /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */ #define X86_FEATURE_XMM3 (4*32+ 0) /* Streaming SIMD Extensions-3 */ #define X86_FEATURE_MWAIT (4*32+ 3) /* Monitor/Mwait support */ #define X86_FEATURE_DSCPL (4*32+ 4) /* CPL Qualified Debug Store */ #define X86_FEATURE_EST (4*32+ 7) /* Enhanced SpeedStep */ #define X86_FEATURE_TM2 (4*32+ 8) /* Thermal Monitor 2 */ #define X86_FEATURE_CID (4*32+10) /* Context ID */ #define X86_FEATURE_CX16 (4*32+13) /* CMPXCHG16B */ #define X86_FEATURE_XTPR (4*32+14) /* Send Task Priority Messages */ /* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */ #define X86_FEATURE_XSTORE (5*32+ 2) /* on-CPU RNG present (xstore insn) */ #define X86_FEATURE_XSTORE_EN (5*32+ 3) /* on-CPU RNG enabled */ #define X86_FEATURE_XCRYPT (5*32+ 6) /* on-CPU crypto (xcrypt insn) */ #define X86_FEATURE_XCRYPT_EN (5*32+ 7) /* on-CPU crypto enabled */ /* More extended AMD flags: CPUID level 0x80000001, ecx, word 6 */ #define X86_FEATURE_LAHF_LM (6*32+ 0) /* LAHF/SAHF in long mode */ #define X86_FEATURE_CMP_LEGACY (6*32+ 1) /* If yes HyperThreading not valid */ #define cpu_has(c, bit) test_bit(bit, (c)->x86_capability) #define boot_cpu_has(bit) test_bit(bit, boot_cpu_data.x86_capability) #define cpu_has_fpu boot_cpu_has(X86_FEATURE_FPU) #define cpu_has_vme boot_cpu_has(X86_FEATURE_VME) #define cpu_has_de boot_cpu_has(X86_FEATURE_DE) #define cpu_has_pse boot_cpu_has(X86_FEATURE_PSE) #define cpu_has_tsc boot_cpu_has(X86_FEATURE_TSC) #define cpu_has_pae boot_cpu_has(X86_FEATURE_PAE) #define cpu_has_pge boot_cpu_has(X86_FEATURE_PGE) #define cpu_has_apic boot_cpu_has(X86_FEATURE_APIC) #define cpu_has_sep boot_cpu_has(X86_FEATURE_SEP) #define cpu_has_mtrr boot_cpu_has(X86_FEATURE_MTRR) #define cpu_has_mmx boot_cpu_has(X86_FEATURE_MMX) #define cpu_has_fxsr boot_cpu_has(X86_FEATURE_FXSR) #define cpu_has_xmm boot_cpu_has(X86_FEATURE_XMM) #define cpu_has_xmm2 boot_cpu_has(X86_FEATURE_XMM2) #define cpu_has_xmm3 boot_cpu_has(X86_FEATURE_XMM3) #define cpu_has_ht boot_cpu_has(X86_FEATURE_HT) #define cpu_has_mp boot_cpu_has(X86_FEATURE_MP) #define cpu_has_nx boot_cpu_has(X86_FEATURE_NX) #define cpu_has_k6_mtrr boot_cpu_has(X86_FEATURE_K6_MTRR) #define cpu_has_cyrix_arr boot_cpu_has(X86_FEATURE_CYRIX_ARR) #define cpu_has_centaur_mcr boot_cpu_has(X86_FEATURE_CENTAUR_MCR) #define cpu_has_xstore boot_cpu_has(X86_FEATURE_XSTORE) #define cpu_has_xstore_enabled boot_cpu_has(X86_FEATURE_XSTORE_EN) #define cpu_has_xcrypt boot_cpu_has(X86_FEATURE_XCRYPT) #define cpu_has_xcrypt_enabled boot_cpu_has(X86_FEATURE_XCRYPT_EN) #endif /* __ASM_I386_CPUFEATURE_H */ /* * Local Variables: * mode:c * comment-column:42 * End: */