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[common] cpuinfo: move feature queries to platform code

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This commit is contained in:
Geoffrey McRae
2026-10-03 09:11:01 +10:00
parent 05fcc64c57
commit 37f7bbad77
4 changed files with 45 additions and 26 deletions
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29
common/src/cpuinfo.c
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@@ -50,15 +50,7 @@ const CPUInfoFeatures * cpuInfo_getFeatures(void)
int cpuid[4] = {0};
// leaf1
asm volatile
(
"cpuid;"
: "=a" (cpuid[0]),
"=b" (cpuid[1]),
"=c" (cpuid[2]),
"=d" (cpuid[3])
: "a" (1)
);
platform_cpuInfoCPUID(cpuid, 1, 0);
features.sse = cpuid[3] & (1 << 25);
features.sse2 = cpuid[3] & (1 << 26);
@@ -74,15 +66,7 @@ const CPUInfoFeatures * cpuInfo_getFeatures(void)
features.avx = cpuid[2] & (1 << 28);
// leaf7
asm volatile
(
"cpuid;"
: "=a" (cpuid[0]),
"=b" (cpuid[1]),
"=c" (cpuid[2]),
"=d" (cpuid[3])
: "a" (7), "c" (0)
);
platform_cpuInfoCPUID(cpuid, 7, 0);
features.avx2 = cpuid[1] & (1 << 5);
features.bmi1 = cpuid[2] & (1 << 3);
@@ -90,14 +74,7 @@ const CPUInfoFeatures * cpuInfo_getFeatures(void)
if (features.osxsave && features.avx)
{
int xgetbv = 0;
asm volatile
(
"xgetbv;"
: "=a" (xgetbv)
: "c" (0)
: "edx"
);
const uint64_t xgetbv = platform_cpuInfoXGETBV(0);
if (!(xgetbv & 0x6))
{