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sna: Improve compatibility of cpuid.h detection 

Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-02-27 17:38:46 +00:00
parent 5c27307219
commit 8aea4ae127
1 changed files with 23 additions and 23 deletions
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46
src/sna/sna_cpu.c
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@ -31,7 +31,7 @@
#include "sna.h"
#if defined(__GNUC__) && (__GNUC__ >= 4) /* 4.4 */
#if defined(__GNUC__) && (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >=4)
#include <cpuid.h>
@ -44,36 +44,36 @@ unsigned sna_cpu_detect(void)
unsigned int eax, ebx, ecx, edx;
unsigned features = 0;
__cpuid(1, eax, ebx, ecx, edx);
if (__get_cpuid(1, eax, ebx, ecx, edx)) {
if (eax & bit_SSE3)
features |= SSE3;
if (eax & bit_SSE3)
features |= SSE3;
if (eax & bit_SSSE3)
features |= SSSE3;
if (eax & bit_SSSE3)
features |= SSSE3;
if (eax & bit_SSE4_1)
features |= SSE4_1;
if (eax & bit_SSE4_1)
features |= SSE4_1;
if (eax & bit_SSE4_2)
features |= SSE4_2;
if (eax & bit_SSE4_2)
features |= SSE4_2;
if (eax & bit_AVX)
features |= AVX;
if (eax & bit_AVX)
features |= AVX;
if (edx & bit_MMX)
features |= MMX;
if (edx & bit_MMX)
features |= MMX;
if (edx & bit_SSE)
features |= SSE;
if (edx & bit_SSE)
features |= SSE;
if (edx & bit_SSE2)
features |= SSE2;
}
if (edx & bit_SSE2)
features |= SSE2;
__cpuid(7, eax, ebx, ecx, edx);
if (eax & bit_AVX2)
features |= AVX2;
if (__get_cpuid(7, eax, ebx, ecx, edx)) {
if (eax & bit_AVX2)
features |= AVX2;
}
return features;
}