/* * cpufeature.h * * Defines x86 CPU feature bits */ #ifndef __ASM_I386_CPUFEATURE_H #define __ASM_I386_CPUFEATURE_H #include #include #define cpufeat_word(idx) ((idx) / 32) #define cpufeat_bit(idx) ((idx) % 32) #define cpufeat_mask(idx) (_AC(1, U) << cpufeat_bit(idx)) /* An alias of a feature we know is always going to be present. */ #define X86_FEATURE_ALWAYS X86_FEATURE_LM #ifndef __ASSEMBLY__ #include #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 CPUID_MWAIT_LEAF 5 #define CPUID5_ECX_EXTENSIONS_SUPPORTED 0x1 #define CPUID5_ECX_INTERRUPT_BREAK 0x2 #define CPUID_PM_LEAF 6 #define CPUID6_ECX_APERFMPERF_CAPABILITY 0x1 /* CPUID level 0x00000001.edx */ #define cpu_has_fpu 1 #define cpu_has_de 1 #define cpu_has_pse 1 #define cpu_has_apic boot_cpu_has(X86_FEATURE_APIC) #define cpu_has_sep boot_cpu_has(X86_FEATURE_SEP) #define cpu_has_mtrr 1 #define cpu_has_pge 1 #define cpu_has_pat 1 #define cpu_has_clflush boot_cpu_has(X86_FEATURE_CLFLUSH) #define cpu_has_mmx 1 #define cpu_has_htt boot_cpu_has(X86_FEATURE_HTT) /* CPUID level 0x00000001.ecx */ #define cpu_has_sse3 boot_cpu_has(X86_FEATURE_SSE3) #define cpu_has_pclmulqdq boot_cpu_has(X86_FEATURE_PCLMULQDQ) #define cpu_has_monitor boot_cpu_has(X86_FEATURE_MONITOR) #define cpu_has_vmx boot_cpu_has(X86_FEATURE_VMX) #define cpu_has_eist boot_cpu_has(X86_FEATURE_EIST) #define cpu_has_ssse3 boot_cpu_has(X86_FEATURE_SSSE3) #define cpu_has_cx16 boot_cpu_has(X86_FEATURE_CX16) #define cpu_has_pdcm boot_cpu_has(X86_FEATURE_PDCM) #define cpu_has_pcid boot_cpu_has(X86_FEATURE_PCID) #define cpu_has_sse4_1 boot_cpu_has(X86_FEATURE_SSE4_1) #define cpu_has_sse4_2 boot_cpu_has(X86_FEATURE_SSE4_2) #define cpu_has_x2apic boot_cpu_has(X86_FEATURE_X2APIC) #define cpu_has_popcnt boot_cpu_has(X86_FEATURE_POPCNT) #define cpu_has_aesni boot_cpu_has(X86_FEATURE_AESNI) #define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE) #define cpu_has_avx boot_cpu_has(X86_FEATURE_AVX) #define cpu_has_rdrand boot_cpu_has(X86_FEATURE_RDRAND) #define cpu_has_hypervisor boot_cpu_has(X86_FEATURE_HYPERVISOR) /* CPUID level 0x80000001.edx */ #define cpu_has_nx boot_cpu_has(X86_FEATURE_NX) #define cpu_has_ffxsr ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) \ && boot_cpu_has(X86_FEATURE_FFXSR)) #define cpu_has_page1gb boot_cpu_has(X86_FEATURE_PAGE1GB) #define cpu_has_rdtscp boot_cpu_has(X86_FEATURE_RDTSCP) /* CPUID level 0x80000001.ecx */ #define cpu_has_cmp_legacy boot_cpu_has(X86_FEATURE_CMP_LEGACY) #define cpu_has_svm boot_cpu_has(X86_FEATURE_SVM) #define cpu_has_sse4a boot_cpu_has(X86_FEATURE_SSE4A) #define cpu_has_lwp boot_cpu_has(X86_FEATURE_LWP) #define cpu_has_tbm boot_cpu_has(X86_FEATURE_TBM) /* CPUID level 0x0000000D:1.eax */ #define cpu_has_xsaveopt boot_cpu_has(X86_FEATURE_XSAVEOPT) #define cpu_has_xsavec boot_cpu_has(X86_FEATURE_XSAVEC) #define cpu_has_xgetbv1 boot_cpu_has(X86_FEATURE_XGETBV1) #define cpu_has_xsaves boot_cpu_has(X86_FEATURE_XSAVES) /* CPUID level 0x00000007:0.ebx */ #define cpu_has_fsgsbase boot_cpu_has(X86_FEATURE_FSGSBASE) #define cpu_has_bmi1 boot_cpu_has(X86_FEATURE_BMI1) #define cpu_has_hle boot_cpu_has(X86_FEATURE_HLE) #define cpu_has_avx2 boot_cpu_has(X86_FEATURE_AVX2) #define cpu_has_smep boot_cpu_has(X86_FEATURE_SMEP) #define cpu_has_bmi2 boot_cpu_has(X86_FEATURE_BMI2) #define cpu_has_rtm boot_cpu_has(X86_FEATURE_RTM) #define cpu_has_fpu_sel (!boot_cpu_has(X86_FEATURE_NO_FPU_SEL)) #define cpu_has_mpx boot_cpu_has(X86_FEATURE_MPX) #define cpu_has_rdseed boot_cpu_has(X86_FEATURE_RDSEED) #define cpu_has_smap boot_cpu_has(X86_FEATURE_SMAP) #define cpu_has_sha boot_cpu_has(X86_FEATURE_SHA) /* CPUID level 0x80000007.edx */ #define cpu_has_itsc boot_cpu_has(X86_FEATURE_ITSC) /* Synthesized. */ #define cpu_has_arch_perfmon boot_cpu_has(X86_FEATURE_ARCH_PERFMON) #define cpu_has_cpuid_faulting boot_cpu_has(X86_FEATURE_CPUID_FAULTING) #define cpu_has_aperfmperf boot_cpu_has(X86_FEATURE_APERFMPERF) enum _cache_type { CACHE_TYPE_NULL = 0, CACHE_TYPE_DATA = 1, CACHE_TYPE_INST = 2, CACHE_TYPE_UNIFIED = 3 }; union _cpuid4_leaf_eax { struct { enum _cache_type type:5; unsigned int level:3; unsigned int is_self_initializing:1; unsigned int is_fully_associative:1; unsigned int reserved:4; unsigned int num_threads_sharing:12; unsigned int num_cores_on_die:6; } split; u32 full; }; union _cpuid4_leaf_ebx { struct { unsigned int coherency_line_size:12; unsigned int physical_line_partition:10; unsigned int ways_of_associativity:10; } split; u32 full; }; union _cpuid4_leaf_ecx { struct { unsigned int number_of_sets:32; } split; u32 full; }; struct cpuid4_info { union _cpuid4_leaf_eax eax; union _cpuid4_leaf_ebx ebx; union _cpuid4_leaf_ecx ecx; unsigned long size; }; int cpuid4_cache_lookup(int index, struct cpuid4_info *this_leaf); #endif /* !__ASSEMBLY__ */ #endif /* __ASM_I386_CPUFEATURE_H */ /* * Local Variables: * mode:c * comment-column:42 * End: */