/*
- * Copyright (c) 2013 Ahmed Samy <f.fallen45@gmail.com>
+ * Copyright (c) 2013, 2015 Ahmed Samy <f.fallen45@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
#include <stdbool.h>
#include <stdint.h>
+#include <stdio.h>
/**
* enum cpuid - stuff to get information about from the CPU.
| CPUID_FEAT_EDX_TM1 | CPUID_FEAT_EDX_IA64 | CPUID_FEAT_EDX_PBE
};
+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,
+
+ 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 cputype {
CT_NONE,
CT_AMDK5,
CT_KVM
} cputype_t;
+static char const *const c_cpunames[] = {
+ "Nooooooooone",
+ "AMDisbetter!",
+ "AuthenticAMD",
+ "CentaurHauls",
+ "CyrixInstead",
+ "GenuineIntel",
+ "TransmetaCPU",
+ "GeniuneTMx86",
+ "Geode by NSC",
+ "NexGenDriven",
+ "RiseRiseRise",
+ "SiS SiS SiS ",
+ "UMC UMC UMC ",
+ "VIA VIA VIA ",
+ "Vortex86 SoC",
+ "KVMKVMKVMKVM"
+};
+
#if defined(__i386__) || defined(__i386) || defined(__x86_64) \
|| defined(_M_AMD64) || defined(__M_X64)
*
* Returns the CPU Type as cputype_t.
*
- * See also: cpuid_get_cpu_type_string()
+ * See also: cpuid_get_name()
*/
-#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_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);
+static inline bool cpuid_is_intel(void)
+{
+ return cpuid_get_cpu_type() == CT_INTEL;
+}
+
+static inline bool cpuid_is_amd(void)
+{
+ return cpuid_get_cpu_type() == CT_AMDK5 || cpuid_get_cpu_type() == CT_AMD;
+}
+
+static inline const char *cpuid_get_name(void)
+{
+ return c_cpunames[(int)cpuid_get_cpu_type()];
+}
/**
* cpuid_is_supported - test if the CPUID instruction is supported
/**
* cpuid - Get Some information from the CPU.
+ * @request: a cpuid_t
+ * @buf: output
*
* This function expects buf to be a valid pointer to a string/int/...
* depending on the requested information.
* 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.
+ * If an invalid request has been passed a 0xbaadf00d is returned in *buf.
*/
-void cpuid(cpuid_t info, uint32_t *buf);
+void cpuid(cpuid_t request, 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
+ * @outfile: Output file pointer
*
* 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"))
+ * fp))
* ... error ...
*/
-bool cpuid_write_info(uint32_t info, uint32_t featureset, const char *outfile);
+bool cpuid_write_info(uint32_t info, uint32_t featureset, FILE *outfile);
/**
* cpuid_test_feature - Test if @feature is available
* cpuid_has_feature - Test if @feature is supported
*
* Test if the CPU supports MMX/SSE* etc.
- * Use cpuid_has_ecxfeature() for *_ECX* features and
- * cpuid_has_edxfeature() for *_EDX* features.
+ * This is split into two parts:
+ * cpuid_has_ecxfeature and
+ * cpuid_has_edxfeature.
+ * See the enum for more information.
*
* Returns true if the feature is available, false 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 extfeature.
+ * Returns true on success, false otherwise.
+ */
+bool cpuid_has_ecxfeature_ext(int extfeature);
+bool cpuid_has_edxfeature_ext(int extfeature);
+
#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_intel() BUILD_ASSERT_OR_ZERO(0)
+#define cpuid_is_amd() BUILD_ASSERT_OR_ZERO(0)
+#define cpuid_get_name() 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(request, 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)