Commit dbbefec6 authored by Ahmed Samy's avatar Ahmed Samy

cpuid: Introduce cpuid_write_info

This function writes CPU information to a file.
Signed-off-by: default avatarAhmed Samy <f.fallen45@gmail.com>
parent fab645fb
This diff is collapsed.
......@@ -105,6 +105,16 @@ enum {
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,
......@@ -134,7 +144,18 @@ enum {
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_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 {
......@@ -268,6 +289,25 @@ uint32_t cpuid_highest_ext_func_supported(void);
*/
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
*
......@@ -298,6 +338,7 @@ bool cpuid_has_edxfeature(int feature);
#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)
......
......@@ -10,38 +10,14 @@ int main(void)
return 1;
}
char cputype[12];
if (cpuid_sprintf_cputype(cpuid_get_cpu_type(), cputype))
printf ("Vendor ID: %s\n", cputype);
char buf[48];
cpuid(CPUID_PROC_BRAND_STRING, (uint32_t *)buf);
printf ("Processor Brand: %s\n", buf);
uint32_t procinfo[9];
cpuid(CPUID_PROCINFO_AND_FEATUREBITS, procinfo);
printf("Stepping: %d Model: 0x%X Family: %d extended model: %d extended family: %d\n",
procinfo[0], procinfo[1], procinfo[2], procinfo[3], procinfo[4]);
printf("Brand Index: %d CL Flush Line Size: %d Logical Processors: %d Initial APICID: %d\n",
procinfo[5], procinfo[6], procinfo[7], procinfo[8]);
printf ("Highest extended function supported: %#010x\n", cpuid_highest_ext_func_supported());
uint32_t phys_virt[2];
cpuid(CPUID_VIRT_PHYS_ADDR_SIZES, phys_virt);
printf ("Physical address size: %d\nVirtual address size: %d\n", phys_virt[0], phys_virt[1]);
uint32_t extfeatures[2];
cpuid(CPUID_EXTENDED_PROC_INFO_FEATURE_BITS, extfeatures);
printf ("Extended processor info and feature bits: %d %d\n", extfeatures[0], extfeatures[1]);
uint32_t l2c[3];
cpuid(CPUID_EXTENDED_L2_CACHE_FEATURES, l2c);
printf("L2 Line size: %u bytes\tAssociativity: %02xh\tCache Size: %u KB\n",
l2c[0], l2c[1], l2c[2]);
uint32_t info = CPUID_HIGHEST_EXTENDED_FUNCTION_SUPPORTED | CPUID_EXTENDED_L2_CACHE_FEATURES | CPUID_VIRT_PHYS_ADDR_SIZES
| CPUID_PROCINFO_AND_FEATUREBITS;
uint32_t featureset = CPUID_FEAT_ECX_ALL | CPUID_FEAT_EDX_ALL;
if (!cpuid_write_info(info, featureset, NULL)) {
printf("Failed to write CPU information!\n");
return 1;
}
uint32_t invalid;
cpuid(0x0ffffffUL, &invalid);
printf ("Testing invalid: %#010x\n", invalid);
printf("Wrote CPU information\n");
return 0;
}
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