X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fcpuid%2Fcpuid.h;h=a3e127e628c4ae7876acd8213b2ebd29630f9ec1;hp=305d69aa3a801e694d1ccff8cfda6b262b4015c9;hb=dbbefec6973725d9a16c82747e0c7ce8e5e6c4f2;hpb=659efe73b8aa2cf479a8e13f81752b47d1154afc diff --git a/ccan/cpuid/cpuid.h b/ccan/cpuid/cpuid.h index 305d69aa..a3e127e6 100644 --- a/ccan/cpuid/cpuid.h +++ b/ccan/cpuid/cpuid.h @@ -26,75 +26,137 @@ #include /** - * enum cpuid - stuff to get information on from the CPU. + * enum cpuid - stuff to get information about from the CPU. * * This is used as a parameter in cpuid(). * - * CPU_VENDORID: + * %CPUID_VENDORID: * The CPU's Vendor ID. * - * CPU_PROCINFO_AND_FEATUREBITS: + * %CPUID_PROCINFO_AND_FEATUREBITS: * Processor information and feature bits (SSE, etc.). * - * CPU_CACHE_AND_TLBD_INFO + * %CPUID_CACHE_AND_TLBD_INFO * Cache and TLBD Information. + * For AMD: Use CPUID_EXTENDED_L2_CACHE_FEATURES * - * CPU_HIGHEST_EXTENDED_FUNCTION_SUPPORTED: + * %CPUID_HIGHEST_EXTENDED_FUNCTION_SUPPORTED: * Highest extended function supported address. * Can be like 0x80000008. * - * CPU_EXTENDED_PROC_INFO_FEATURE_BITS: + * %CPUID_EXTENDED_PROC_INFO_FEATURE_BITS: * Extended processor information and feature bits (64bit etc.) * - * CPU_PROC_BRAND_STRING: + * %CPUID_PROC_BRAND_STRING: * The Processor's brand string. * - * CPU_L1_CACHE_AND_TLB_IDS: + * %CPUID_L1_CACHE_AND_TLB_IDS: * L1 Cache and TLB Identifications. + * AMD Only. * - * CPU_EXTENDED_L2_CACHE_FEATURES: + * %CPUID_EXTENDED_L2_CACHE_FEATURES: * Extended L2 Cache features. * - * CPU_ADV_POWER_MGT_INFO: + * %CPUID_ADV_POWER_MGT_INFO: * Advaned power management information. * - * CPU_VIRT_PHYS_ADDR_SIZES: + * %CPUID_VIRT_PHYS_ADDR_SIZES: * Virtual and physical address sizes. */ typedef enum cpuid { - CPU_VENDORID = 0, - CPU_PROCINFO_AND_FEATUREBITS = 1, - CPU_CACHE_AND_TLBD_INFO = 2, + CPUID_VENDORID = 0, + CPUID_PROCINFO_AND_FEATUREBITS = 1, + CPUID_CACHE_AND_TLBD_INFO = 2, - CPU_HIGHEST_EXTENDED_FUNCTION_SUPPORTED = 0x80000000, - CPU_EXTENDED_PROC_INFO_FEATURE_BITS = 0x80000001, - CPU_PROC_BRAND_STRING = 0x80000002, - CPU_L1_CACHE_AND_TLB_IDS = 0x80000005, - CPU_EXTENDED_L2_CACHE_FEATURES = 0x80000006, - CPU_ADV_POWER_MGT_INFO = 0x80000007, - CPU_VIRT_PHYS_ADDR_SIZES = 0x80000008 + CPUID_HIGHEST_EXTENDED_FUNCTION_SUPPORTED = 0x80000000, + CPUID_EXTENDED_PROC_INFO_FEATURE_BITS = 0x80000001, + CPUID_PROC_BRAND_STRING = 0x80000002, + CPUID_L1_CACHE_AND_TLB_IDS = 0x80000005, + CPUID_EXTENDED_L2_CACHE_FEATURES = 0x80000006, + CPUID_ADV_POWER_MGT_INFO = 0x80000007, + CPUID_VIRT_PHYS_ADDR_SIZES = 0x80000008 } cpuid_t; -#define CF_MMX 0 -#define CF_SSE 1 -#define CF_SSE2 2 -#define CF_SSE3 3 -#define CF_FPU 4 -#define CF_TSC 5 -#define CF_MSR 6 -#define CF_SSSE3 7 -#define CF_AVX 8 -#define CF_FMA 9 +enum { + CPUID_FEAT_ECX_SSE3 = 1 << 0, + CPUID_FEAT_ECX_PCLMUL = 1 << 1, + CPUID_FEAT_ECX_DTES64 = 1 << 2, + CPUID_FEAT_ECX_MONITOR = 1 << 3, + CPUID_FEAT_ECX_DS_CPL = 1 << 4, + CPUID_FEAT_ECX_VMX = 1 << 5, + CPUID_FEAT_ECX_SMX = 1 << 6, + CPUID_FEAT_ECX_EST = 1 << 7, + CPUID_FEAT_ECX_TM2 = 1 << 8, + CPUID_FEAT_ECX_SSSE3 = 1 << 9, + CPUID_FEAT_ECX_CID = 1 << 10, + CPUID_FEAT_ECX_FMA = 1 << 12, + CPUID_FEAT_ECX_CX16 = 1 << 13, + CPUID_FEAT_ECX_ETPRD = 1 << 14, + CPUID_FEAT_ECX_PDCM = 1 << 15, + CPUID_FEAT_ECX_DCA = 1 << 18, + CPUID_FEAT_ECX_SSE4_1 = 1 << 19, + CPUID_FEAT_ECX_SSE4_2 = 1 << 20, + CPUID_FEAT_ECX_x2APIC = 1 << 21, + CPUID_FEAT_ECX_MOVBE = 1 << 22, + CPUID_FEAT_ECX_POPCNT = 1 << 23, + CPUID_FEAT_ECX_AES = 1 << 25, + CPUID_FEAT_ECX_XSAVE = 1 << 26, + CPUID_FEAT_ECX_OSXSAVE = 1 << 27, + CPUID_FEAT_ECX_AVX = 1 << 28, -#define CEF_x64 10 -#define CEF_FPU 11 -#define CEF_DE 12 -#define CEF_SYSCALLRET 13 -#define CEF_CMOV 14 -#define CEF_SSE4a 15 -#define CEF_FMA4 16 -#define CEF_XOP 17 + CPUID_FEAT_ECX_ALL = CPUID_FEAT_ECX_SSE3 | CPUID_FEAT_ECX_PCLMUL | CPUID_FEAT_ECX_DTES64 + | CPUID_FEAT_ECX_MONITOR | CPUID_FEAT_ECX_DS_CPL | CPUID_FEAT_ECX_VMX + | CPUID_FEAT_ECX_SMX | CPUID_FEAT_ECX_EST | CPUID_FEAT_ECX_TM2 + | CPUID_FEAT_ECX_SSSE3 | CPUID_FEAT_ECX_CID | CPUID_FEAT_ECX_FMA + | CPUID_FEAT_ECX_CX16 | CPUID_FEAT_ECX_ETPRD | CPUID_FEAT_ECX_PDCM + | CPUID_FEAT_ECX_DCA | CPUID_FEAT_ECX_SSE4_1 | CPUID_FEAT_ECX_SSE4_2 + | CPUID_FEAT_ECX_x2APIC | CPUID_FEAT_ECX_MOVBE | CPUID_FEAT_ECX_POPCNT + | CPUID_FEAT_ECX_AES | CPUID_FEAT_ECX_XSAVE | CPUID_FEAT_ECX_OSXSAVE + | CPUID_FEAT_ECX_AVX, + + CPUID_FEAT_EDX_FPU = 1 << 0, + CPUID_FEAT_EDX_VME = 1 << 1, + CPUID_FEAT_EDX_DE = 1 << 2, + CPUID_FEAT_EDX_PSE = 1 << 3, + CPUID_FEAT_EDX_TSC = 1 << 4, + CPUID_FEAT_EDX_MSR = 1 << 5, + CPUID_FEAT_EDX_PAE = 1 << 6, + CPUID_FEAT_EDX_MCE = 1 << 7, + CPUID_FEAT_EDX_CX8 = 1 << 8, + CPUID_FEAT_EDX_APIC = 1 << 9, + CPUID_FEAT_EDX_SEP = 1 << 11, + CPUID_FEAT_EDX_MTRR = 1 << 12, + CPUID_FEAT_EDX_PGE = 1 << 13, + CPUID_FEAT_EDX_MCA = 1 << 14, + CPUID_FEAT_EDX_CMOV = 1 << 15, + CPUID_FEAT_EDX_PAT = 1 << 16, + CPUID_FEAT_EDX_PSE36 = 1 << 17, + CPUID_FEAT_EDX_PSN = 1 << 18, + CPUID_FEAT_EDX_CLF = 1 << 19, + CPUID_FEAT_EDX_DTES = 1 << 21, + CPUID_FEAT_EDX_ACPI = 1 << 22, + CPUID_FEAT_EDX_MMX = 1 << 23, + CPUID_FEAT_EDX_FXSR = 1 << 24, + CPUID_FEAT_EDX_SSE = 1 << 25, + CPUID_FEAT_EDX_SSE2 = 1 << 26, + CPUID_FEAT_EDX_SS = 1 << 27, + CPUID_FEAT_EDX_HTT = 1 << 28, + CPUID_FEAT_EDX_TM1 = 1 << 29, + CPUID_FEAT_EDX_IA64 = 1 << 30, + CPUID_FEAT_EDX_PBE = 1 << 31, + + CPUID_FEAT_EDX_ALL = CPUID_FEAT_EDX_FPU | CPUID_FEAT_EDX_VME | CPUID_FEAT_EDX_DE + | CPUID_FEAT_EDX_PSE | CPUID_FEAT_EDX_TSC | CPUID_FEAT_EDX_MSR + | CPUID_FEAT_EDX_PAE | CPUID_FEAT_EDX_MCE | CPUID_FEAT_EDX_CX8 + | CPUID_FEAT_EDX_APIC | CPUID_FEAT_EDX_SEP | CPUID_FEAT_EDX_MTRR + | CPUID_FEAT_EDX_PGE | CPUID_FEAT_EDX_MCA | CPUID_FEAT_EDX_CMOV + | CPUID_FEAT_EDX_PAT | CPUID_FEAT_EDX_PSE36 | CPUID_FEAT_EDX_PSN + | CPUID_FEAT_EDX_CLF | CPUID_FEAT_EDX_DTES | CPUID_FEAT_EDX_ACPI + | CPUID_FEAT_EDX_MMX | CPUID_FEAT_EDX_FXSR | CPUID_FEAT_EDX_SSE + | CPUID_FEAT_EDX_SSE2 | CPUID_FEAT_EDX_SS | CPUID_FEAT_EDX_HTT + | CPUID_FEAT_EDX_TM1 | CPUID_FEAT_EDX_IA64 | CPUID_FEAT_EDX_PBE +}; typedef enum cputype { CT_NONE, @@ -124,14 +186,17 @@ typedef enum cputype { * * See also: cpuid_get_cpu_type_string() */ +#define is_intel_cpu() cpuid_get_cpu_type() == CT_INTEL +#define is_amd_cpu() cpuid_get_cpu_type() == CT_AMDK5 || cpuid_get_cpu_type() == CT_AMD cputype_t cpuid_get_cpu_type(void); /** - * cpuid_get_cpu_type_string - Get CPU Type string + * cpuid_sprintf_cputype - Get CPU Type string + * @cputype: a char of atleast 12 bytes in it. * - * Returns the CPU type string based off cputype_t. + * Returns true on success, false on failure */ -const char *cpuid_get_cpu_type_string(const cputype_t cputype); +bool cpuid_sprintf_cputype(const cputype_t cputype, char *buf); /** * cpuid_is_supported - test if the CPUID instruction is supported @@ -151,7 +216,7 @@ bool cpuid_is_supported(void); * Returns the highest extended function supported. * * This is the same as calling: - * cpuid(CPU_HIGHEST_EEXTENDED_FUNCTION_SUPPORTED, &highest); + * cpuid(CPUID_HIGHEST_EEXTENDED_FUNCTION_SUPPORTED, &highest); * * This is made visible to the linker because it's easier to call it * instead of calling cpuid with less type-checking. cpuid calls this. @@ -166,65 +231,90 @@ uint32_t cpuid_highest_ext_func_supported(void); * This function expects buf to be a valid pointer to a string/int/... * depending on the requested information. * - * For CPU_VENDOR_ID: + * For CPUID_VENDOR_ID: * Returns a string into buf. * - * For CPU_PROCINFO_AND_FEATUREBITS: - * buf[0]: - * - 3:0 - Stepping - * - 7:4 - Model - * - 11:8 - Family - * - 13:12 - Processor Type - * - 19:16 - Extended Model - * - 27:20 - Extended family - * buf[1] and buf[2]: - * Feature flags - * buf[3]: - * Additional feature information. - * - * For CPU_L1_CACHE_AND_TLB_IDS: - * buf[0]: (eax): - * - 7..0 Number of times to exec cpuid to get all descriptors. - * - 15..8 Instruction TLB: 4K Pages, 4-way set associtive, 128 entries. - * - 23..16 Data TLB: 4k Pages, 4-way set associtive, 128 entries. - * - 24..31 Instruction TLB: 4K Pages, 4-way set associtive, 2 entries. - * buf[1]: (ebx): - * - 7..0 64-byte prefetching - * - 8..31 Null descriptor - * buf[2]: (ecx): - * - 0..31 Null descriptor - * buf[3]: (edx): - * - 7..0 2nd-level cache, 2M, 8-way set associtive, 64-byte line size - * - 15..8 1st-level instruction cache: 32K, 8-way set associtive, 64 byte line size - * - 16..23 Data TLB: 4M Pages, 4-way set associtive, 8 entires. - * - 24..31 1st-level data cache: 32K, 8-way set associtive, 64 byte line size - * - * For CPU_HIGHEST_EXTENDED_FUNCTION_SUPPORTED: + * For CPUID_PROCINFO_AND_FEATUREBITS: + * buf[0]: Stepping + * buf[1]: Model + * buf[2]: Family + * buf[3]: Extended Model + * buf[4]: Extended Family + * buf[5]: Brand Index + * buf[6]: CL Flush Line Size + * buf[7]: Logical Processors + * buf[8]: Initial APICID + * + * For CPUID_L1_CACHE_AND_TLB_IDS: + * buf[0] to buf[3]: 2M+4M page TLB info + * 0: Inst count + * 1: Inst Assoc + * 2: Data Count + * 3: Data Assoc + * buf[4] to buf[7]: 4k page TLB info + * 0: Inst count + * 1: Inst Assoc + * 2: Data Count + * 3: Data Assoc + * buf[8] to buf[11]: L1 data cache information + * 0: Line Size + * 1: LinesPerTag + * 2: Associativity + * 3: CacheSize + * buf[12] to buf[15]: L1 instruction cache info + * 0: Line Size + * 1: LinesPerTag + * 2: Associativity + * 3: CacheSize + * + * For CPUID_HIGHEST_EXTENDED_FUNCTION_SUPPORTED: * Returns the highest supported function in *buf (expects an integer ofc) * - * For CPU_EXTENDED_PROC_INFO_FEATURE_BITS: + * For CPUID_EXTENDED_PROC_INFO_FEATURE_BITS: * Returns them in buf[0] and buf[1]. * - * For CPU_VIRT_PHYS_ADDR_SIZES: - * Returns it as an integer in *buf. + * For CPUID_EXTENDED_L2_CACHE_FEATURES: + * buf[0]: Line size + * buf[1]: Associativity + * buf[2]: Cache size. * - * For CPU_PROC_BRAND_STRING: - * Have a char array with at least 48 bytes assigned to it. + * For CPUID_VIRT_PHYS_ADDR_SIZES: + * buf[0]: Physical + * buf[1]: Virtual * - * Here's a page which will help you parse the data provided by this function. - * http://www.flounder.com/cpuid_explorer2.htm + * For CPUID_PROC_BRAND_STRING: + * Have a char array with at least 48 bytes assigned to it. * * If an invalid flag has been passed a 0xbaadf00d is returned in *buf. */ void cpuid(cpuid_t info, uint32_t *buf); +/** + * cpuid_write_info - Write specified CPU information to a file. + * @info: Bit set of information to write. + * @featureset: Bit set of features to write. + * @outfile: Output filename (Max 256). + * + * If @outfile is NULL, a name is choosen in the following format: + * CPUVENDOR_PROCESSORBRAND.cpuid + * + * Returns true on success, false otherwise. + * + * Example usage: + * if (!cpuid_write_info(CPUID_VENDORID | CPUID_PROC_BRAND_STRING, + * CPUID_FEAT_ECX_SSE3 | CPUID_FEAT_EDX_FPU, + * "cpuinfo.cpuid")) + * ... error ... + */ +bool cpuid_write_info(uint32_t info, uint32_t featureset, const char *outfile); + /** * cpuid_test_feature - Test if @feature is available * * Returns true if feature is supported, false otherwise. * - * The feature parameter must be >= CPU_EXTENDED_PROC_INFO_FEATURE_BITS - * and <= CPU_VIRT_PHYS_ADDR_SIZES. + * The feature parameter must be >= CPUID_EXTENDED_PROC_INFO_FEATURE_BITS + * and <= CPUID_VIRT_PHYS_ADDR_SIZES. */ bool cpuid_test_feature(cpuid_t feature); @@ -232,41 +322,28 @@ bool cpuid_test_feature(cpuid_t feature); * cpuid_has_feature - Test if @feature is supported * * Test if the CPU supports MMX/SSE* etc. - * For the extended parameter, usually you want to pass it as - * false if you're not passing CEF_*. - * - * For more information about the CPU extended features, have a look - * at: - * http://en.wikipedia.org/wiki/CPUID + * Use cpuid_has_ecxfeature() for *_ECX* features and + * cpuid_has_edxfeature() for *_EDX* features. * * Returns true if the feature is available, false otherwise. */ -#define cpuid_has_mmx() cpuid_has_feature(CF_MMX, false) -#define cpuid_has_sse() cpuid_has_feature(CF_SSE, false) -#define cpuid_has_sse2() cpuid_has_feature(CF_SSE2, false) -#define cpuid_has_sse3() cpuid_has_feature(CF_SSE3, false) -#define cpuid_has_ssse3() cpuid_has_feature(CF_SSSE3, false) -#define cpuid_has_avx() cpuid_has_feature(CF_AVX, false) -#define cpuid_has_fma() cpuid_has_feature(CF_FMA, false) -#define cpuid_has_x64() cpuid_has_feature(CEF_x64, true) -#define cpuid_has_sse4a() cpuid_has_feature(CEF_SSE4a, true) -#define cpuid_has_fma4() cpuid_has_feature(CEF_FMA4, true) -#define cpuid_has_xop() cpuid_has_feature(CEF_XOP, true) -bool cpuid_has_feature(int feature, bool extended); +bool cpuid_has_ecxfeature(int feature); +bool cpuid_has_edxfeature(int feature); #else #include -#define cpuid_get_cpu_type() BUILD_ASSERT_OR_ZERO(0) -#define cpuid_get_cpu_type_string() BUILD_ASSERT_OR_ZERO(0) +#define cpuid_get_cpu_type() BUILD_ASSERT_OR_ZERO(0) +#define cpuid_get_cpu_type_string() BUILD_ASSERT_OR_ZERO(0) -#define cpuid_is_supported() BUILD_ASSERT_OR_ZERO(0) -#define cpuid(info, buf) BUILD_ASSERT_OR_ZERO(0) +#define cpuid_is_supported() BUILD_ASSERT_OR_ZERO(0) +#define cpuid(info, buf) BUILD_ASSERT_OR_ZERO(0) +#define cpuid_write_info(info, featureset, outfile) BUILD_ASSERT_OR_ZERO(0) -#define cpuid_highest_ext_func_supported() BUILD_ASSERT_OR_ZERO(0) -#define cpuid_test_feature(feature) BUILD_ASSERT_OR_ZERO(0) -#define cpuid_has_feature(feature, ext) BUILD_ASSERT_OR_ZERO(0) +#define cpuid_highest_ext_func_supported() BUILD_ASSERT_OR_ZERO(0) +#define cpuid_test_feature(feature) BUILD_ASSERT_OR_ZERO(0) +#define cpuid_has_ecxfeature(feature) BUILD_ASSERT_OR_ZERO(0) +#define cpuid_has_edxfeature(feature) BUILD_ASSERT_OR_ZERO(0) #endif #endif -