added read_cpuid and MTRR support checking before trying to set them

[retrobench] / src / util.h

diff --git a/src/util.h b/src/util.h
index 633ccbf..1032520 100644 (file)
--- a/src/util.h
+++ b/src/util.h
@@ -236,4 +236,77 @@ void __inline memset16(void *dest, uint16_t val, int count)
        } while(0)
 #endif
 
+struct cpuid_info {
+       uint32_t maxidx;        /* 0: eax */
+       char vendor[12];        /* 0: ebx, edx, ecx */
+       uint32_t id;            /* 1: eax */
+       uint32_t rsvd0;         /* 1: ebx */
+       uint32_t feat;          /* 1: edx */
+       uint32_t feat2;         /* 1: ecx */
+};
+
+#define CPUID_STEPPING(id)     ((id) & 0xf)
+#define CPUID_MODEL(id)                (((id) >> 4) & 0xf)
+#define CPUID_FAMILY(id)       (((id) >> 8) & 0xf)
+
+#define CPUID_FEAT_FPU                 0x00000001
+#define CPUID_FEAT_VME                 0x00000002
+#define CPUID_FEAT_DBGEXT              0x00000004
+#define CPUID_FEAT_PSE                 0x00000008
+#define CPUID_FEAT_TSC                 0x00000010
+#define CPUID_FEAT_MSR                 0x00000020
+#define CPUID_FEAT_PAE                 0x00000040
+#define CPUID_FEAT_MCE                 0x00000080
+#define CPUID_FEAT_CX8                 0x00000100
+#define CPUID_FEAT_APIC                        0x00000200
+#define CPUID_FEAT_SEP                 0x00000800
+#define CPUID_FEAT_MTRR                        0x00001000
+#define CPUID_FEAT_PGE                 0x00002000
+#define CPUID_FEAT_MCA                 0x00004000
+#define CPUID_FEAT_CMOV                        0x00008000
+#define CPUID_FEAT_PAT                 0x00010000
+#define CPUID_FEAT_PSE36               0x00020000
+#define CPUID_FEAT_PSN                 0x00040000
+#define CPUID_FEAT_CLF                 0x00080000
+#define CPUID_FEAT_DTES                        0x00200000
+#define CPUID_FEAT_ACPI                        0x00400000
+#define CPUID_FEAT_MMX                 0x00800000
+#define CPUID_FEAT_FXSR                        0x01000000
+#define CPUID_FEAT_SSE                 0x02000000
+#define CPUID_FEAT_SSE2                        0x04000000
+#define CPUID_FEAT_SS                  0x08000000
+#define CPUID_FEAT_HTT                 0x10000000
+#define CPUID_FEAT_TM1                 0x20000000
+#define CPUID_FEAT_IA64                        0x40000000
+#define CPUID_FEAT_PBE                 0x80000000
+
+#define CPUID_FEAT2_SSE3               0x00000001
+#define CPUID_FEAT2_PCLMUL             0x00000002
+#define CPUID_FEAT2_DTES64             0x00000004
+#define CPUID_FEAT2_MONITOR            0x00000008
+#define CPUID_FEAT2_DS_CPL             0x00000010
+#define CPUID_FEAT2_VMX                        0x00000020
+#define CPUID_FEAT2_SMX                        0x00000040
+#define CPUID_FEAT2_EST                        0x00000080
+#define CPUID_FEAT2_TM2                        0x00000100
+#define CPUID_FEAT2_SSSE3              0x00000200
+#define CPUID_FEAT2_CID                        0x00000400
+#define CPUID_FEAT2_FMA                        0x00001000
+#define CPUID_FEAT2_CX16               0x00002000
+#define CPUID_FEAT2_ETPRD              0x00004000
+#define CPUID_FEAT2_PDCM               0x00008000
+#define CPUID_FEAT2_PCIDE              0x00020000
+#define CPUID_FEAT2_DCA                        0x00040000
+#define CPUID_FEAT2_SSE41              0x00080000
+#define CPUID_FEAT2_SSE42              0x00100000
+#define CPUID_FEAT2_X2APIC             0x00200000
+#define CPUID_FEAT2_MOVBE              0x00400000
+#define CPUID_FEAT2_POPCNT             0x00800000
+#define CPUID_FEAT2_AES                        0x02000000
+#define CPUID_FEAT2_XSAVE              0x04000000
+#define CPUID_FEAT2_OSXSAVE            0x08000000
+#define CPUID_FEAT2_AVX                        0x10000000
+
+int read_cpuid(struct cpuid_info *info);
+
 #endif /* UTIL_H_ */