#ifndef CCAN_CPUID_H
#define CCAN_CPUID_H
+#include <stdbool.h>
+#include <stdint.h>
+
+/**
+ * enum cpuid - stuff to get information about from the CPU.
+ *
+ * This is used as a parameter in cpuid().
+ *
+ * %CPUID_VENDORID:
+ * The CPU's Vendor ID.
+ *
+ * %CPUID_PROCINFO_AND_FEATUREBITS:
+ * Processor information and feature bits (SSE, etc.).
+ *
+ * %CPUID_CACHE_AND_TLBD_INFO
+ * Cache and TLBD Information.
+ * For AMD: Use CPUID_EXTENDED_L2_CACHE_FEATURES
+ *
+ * %CPUID_HIGHEST_EXTENDED_FUNCTION_SUPPORTED:
+ * Highest extended function supported address.
+ * Can be like 0x80000008.
+ *
+ * %CPUID_EXTENDED_PROC_INFO_FEATURE_BITS:
+ * Extended processor information and feature bits (64bit etc.)
+ *
+ * %CPUID_PROC_BRAND_STRING:
+ * The Processor's brand string.
+ *
+ * %CPUID_L1_CACHE_AND_TLB_IDS:
+ * L1 Cache and TLB Identifications.
+ * AMD Only.
+ *
+ * %CPUID_EXTENDED_L2_CACHE_FEATURES:
+ * Extended L2 Cache features.
+ *
+ * %CPUID_ADV_POWER_MGT_INFO:
+ * Advaned power management information.
+ *
+ * %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,
-
- 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_VENDORID = 0,
+ CPUID_PROCINFO_AND_FEATUREBITS = 1,
+ CPUID_CACHE_AND_TLBD_INFO = 2,
+
+ 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;
-typedef enum cpufeature {
- CF_MMX = 1 << 23,
- CF_SSE = 1 << 25,
- CF_SSE2 = 1 << 26,
- CF_SSE3 = 1 << 0,
+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,
+
+ 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
+};
- CF_SSSE3 = 1 << 9,
- CF_SSE41 = 1 << 19,
- CF_SSE42 = 1 << 20,
+enum {
+ CPUID_EXTFEAT_ECX_LAHF_LM = 1 << 0,
+ CPUID_EXTFEAT_ECX_CMP_LEGACY = 1 << 1,
+ CPUID_EXTFEAT_ECX_SVM = 1 << 2,
+ CPUID_EXTFEAT_ECX_EXTAPIC = 1 << 3,
+ CPUID_EXTFEAT_ECX_CR8_LEGACY = 1 << 4,
+ CPUID_EXTFEAT_ECX_ABM = 1 << 5,
+ CPUID_EXTFEAT_ECX_SSE4A = 1 << 6,
+ CPUID_EXTFEAT_ECX_MISALIGNSSE = 1 << 7,
+ CPUID_EXTFEAT_ECX_3DNOWPREFETCH = 1 << 8,
+ CPUID_EXTFEAT_ECX_OSVW = 1 << 9,
+ CPUID_EXTFEAT_ECX_IBS = 1 << 10,
+ CPUID_EXTFEAT_ECX_XOP = 1 << 11,
+ CPUID_EXTFEAT_ECX_SKINIT = 1 << 12,
+ CPUID_EXTFEAT_ECX_WDT = 1 << 13,
+ CPUID_EXTFEAT_ECX_LWP = 1 << 15,
+ CPUID_EXTFEAT_ECX_FMA4 = 1 << 16,
+ CPUID_EXTFEAT_ECX_TCE = 1 << 17,
+ CPUID_EXTFEAT_ECX_NODEIDE_MSR = 1 << 19,
+ CPUID_EXTFEAT_ECX_TBM = 1 << 21,
+ CPUID_EXTFEAT_ECX_TOPOEXT = 1 << 22,
+ CPUID_EXTFEAT_ECX_PERFXTR_CORE = 1 << 23,
+ CPUID_EXTFEAT_ECX_PERFCTR_NB = 1 << 24,
- CF_AVX = 1 << 28,
- CF_FMA = 1 << 12
-} cpufeature_t;
+ CPUID_EXTFEAT_EDX_FPU = 1 << 0,
+ CPUID_EXTFEAT_EDX_VME = 1 << 1,
+ CPUID_EXTFEAT_EDX_DE = 1 << 2,
+ CPUID_EXTFEAT_EDX_PSE = 1 << 3,
+ CPUID_EXTFEAT_EDX_TSC = 1 << 4,
+ CPUID_EXTFEAT_EDX_MSR = 1 << 5,
+ CPUID_EXTFEAT_EDX_PAE = 1 << 6,
+ CPUID_EXTFEAT_EDX_MCE = 1 << 7,
+ CPUID_EXTFEAT_EDX_CX8 = 1 << 8,
+ CPUID_EXTFEAT_EDX_APIC = 1 << 9,
+ CPUID_EXTFEAT_EDX_SYSCALL = 1 << 11,
+ CPUID_EXTFEAT_EDX_MTRR = 1 << 12,
+ CPUID_EXTFEAT_EDX_PGE = 1 << 13,
+ CPUID_EXTFEAT_EDX_MCA = 1 << 14,
+ CPUID_EXTFEAT_EDX_CMOV = 1 << 15,
+ CPUID_EXTFEAT_EDX_PAT = 1 << 16,
+ CPUID_EXTFEAT_EDX_PSE36 = 1 << 17,
+ CPUID_EXTFEAT_EDX_MP = 1 << 19,
+ CPUID_EXTFEAT_EDX_NX = 1 << 20,
+ CPUID_EXTFEAT_EDX_MMXEXT = 1 << 22,
+ CPUID_EXTFEAT_EDX_MMX = 1 << 23,
+ CPUID_EXTFEAT_EDX_FXSR = 1 << 24,
+ CPUID_EXTFEAT_EDX_FXSR_OPT = 1 << 25,
+ CPUID_EXTFEAT_EDX_PDPE1GB = 1 << 26,
+ CPUID_EXTFEAT_EDX_RDTSCP = 1 << 27,
+ CPUID_EXTFEAT_EDX_LM = 1 << 29,
+ CPUID_EXTFEAT_EDX_3DNOWEXT = 1 << 30,
+ CPUID_EXTFEAT_EDX_3DNOW = 1 << 31
+};
-typedef enum cpuextfeature {
- CEF_x64 = 1 << 29,
- CEF_SSE4a = 1 << 6,
- CEF_FMA4 = 1 << 16,
- CEF_XOP = 1 << 11
-} cpuextfeature_t;
+typedef enum cputype {
+ CT_NONE,
+ CT_AMDK5,
+ CT_AMD,
+ CT_CENTAUR,
+ CT_CYRIX,
+ CT_INTEL,
+ CT_TRANSMETA,
+ CT_NATIONAL_SEMICONDUCTOR,
+ CT_NEXGEN,
+ CT_RISE,
+ CT_SIS,
+ CT_UMC,
+ CT_VIA,
+ CT_VORTEX,
+ CT_KVM
+} cputype_t;
-/* returns 1 if the cpuid instruction is supported, 0 otherwise.
+#if defined(__i386__) || defined(__i386) || defined(__x86_64) \
+ || defined(_M_AMD64) || defined(__M_X64)
+
+/**
+ * cpuid_get_cpu_type - Get CPU Type
+ *
+ * Returns the CPU Type as cputype_t.
*
- * CPUID isn't supported on very old Intel CPUs.
- * Defined in issupprted.S
+ * See also: cpuid_get_cpu_type_string()
*/
-int cpuid_is_supported(void);
+#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);
-/* returns the highest extended function supported.
+/**
+ * cpuid_sprintf_cputype - Get CPU Type string
+ * @cputype: a char of atleast 12 bytes in it.
+ *
+ * Returns true on success, false on failure
+ */
+bool cpuid_sprintf_cputype(const cputype_t cputype, char *buf);
+
+/**
+ * cpuid_is_supported - test if the CPUID instruction is supported
+ *
+ * CPUID is not supported by old CPUS.
+ *
+ * Returns true if the cpuid instruction is supported, false otherwise.
+ *
+ * See also: cpuid()
+ */
+bool cpuid_is_supported(void);
+
+/**
+ * cpuid_highest_ext_func_supported - Get the highest extended function supported
+ *
+ *
+ * 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.
+ *
+ * See also: cpuid()
*/
-int highest_ext_func_supported(void);
+uint32_t cpuid_highest_ext_func_supported(void);
-/* Get Some information from the CPU.
+/**
+ * cpuid - Get Some information from the CPU.
+ *
* 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_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:
+ * For CPUID_VIRT_PHYS_ADDR_SIZES:
+ * buf[0]: Physical
+ * buf[1]: Virtual
+ *
+ * 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, void *buf);
+void cpuid(cpuid_t info, uint32_t *buf);
-/*
- * Returns 1 if feature is supported, 0 otherwise.
+/**
+ * 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.
*/
-int cpuid_test_feature(cpuid_t feature);
+bool cpuid_test_feature(cpuid_t feature);
-/* Test if the CPU supports MMX/SSE*
+/**
+ * cpuid_has_feature - Test if @feature is supported
+ *
+ * Test if the CPU supports MMX/SSE* etc.
+ * This is split into two parts:
+ * cpuid_has_ecxfeature and
+ * cpuid_has_edxfeature.
+ * See the enum for more information.
+ *
*
- * Returns 1 if the feature is available, 0 otherwise.
+ * Returns true if the feature is available, false otherwise.
*/
-#define cpuid_has_mmx() cpuid_has_feature(CF_MMX)
-#define cpuid_has_sse() cpuid_has_feature(CF_SSE)
-#define cpuid_has_sse2() cpuid_has_feature(CF_SSE2)
-#define cpuid_has_sse3() cpuid_has_feature(CF_SSE3)
-#define cpuid_has_ssse3() cpuid_has_feature(CF_SSSE3)
-#define cpuid_has_sse41() cpuid_has_feature(CF_SSE41)
-#define cpuid_has_sse42() cpuid_has_feature(CF_SSE42)
-#define cpuid_has_avx() cpuid_has_feature(CF_AVX)
-#define cpuid_has_fma() cpuid_has_feature(CF_FMA)
-int cpuid_has_feature(cpufeature_t feature);
-
-/* Test if the CPU supports an extended feature.
- *
- * Returns 1 if available, 0 otherwise.
+bool cpuid_has_ecxfeature(int feature);
+bool cpuid_has_edxfeature(int feature);
+
+/**
+ * cpuid_has_extfeature - Test if @extfeature is supported
+ * @extfeature: the extended feature to test.
+ *
+ * This is split into two parts:
+ * cpuid_has_ecxfeature_ext and
+ * cpuid_has_edxfeature_ext.
+ * See the enum for more information.
+ *
+ * Test if the CPU supports this feature.
+ * Returns true on success, false otherwise.
*/
-#define cpuid_has_x64() cpuid_has_ext_feature(CEF_x64)
-#define cpuid_has_sse4a() cpuid_has_ext_feature(CEF_SSE4a)
-#define cpuid_has_fma4() cpuid_has_ext_feature(CEF_FMA4)
-#define cpuid_has_xop() cpuid_has_ext_feature(CEF_XOP)
-int cpuid_has_ext_feature(cpuextfeature_t extfeature);
+bool cpuid_has_ecxfeature_ext(int extfeature);
+bool cpuid_has_edxfeature_ext(int extfeature);
-#endif
+#else
+#include <ccan/build_assert/build_assert.h>
+
+#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_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_ecxfeature(feature) BUILD_ASSERT_OR_ZERO(0)
+#define cpuid_has_edxfeature(feature) BUILD_ASSERT_OR_ZERO(0)
+
+#endif
+#endif
projects / ccan / blobdiff