diff options
Diffstat (limited to 'mesalib/src/mesa/x86/common_x86.c')
| -rw-r--r-- | mesalib/src/mesa/x86/common_x86.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/mesalib/src/mesa/x86/common_x86.c b/mesalib/src/mesa/x86/common_x86.c index 3c1adc916..261f49170 100644 --- a/mesalib/src/mesa/x86/common_x86.c +++ b/mesalib/src/mesa/x86/common_x86.c @@ -47,6 +47,13 @@ #include <sys/sysctl.h> #include <machine/cpu.h> #endif +#if defined(USE_X86_64_ASM) +#include <cpuid.h> +#if !defined(bit_SSE4_1) && defined(bit_SSE41) +/* XXX: clang defines bit_SSE41 instead of bit_SSE4_1 */ +#define bit_SSE4_1 bit_SSE41 +#endif +#endif #include "main/imports.h" #include "common_x86_asm.h" @@ -223,7 +230,7 @@ _mesa_get_x86_features(void) _mesa_debug(NULL, "CPUID not detected\n"); } else { - GLuint cpu_features; + GLuint cpu_features, cpu_features_ecx; GLuint cpu_ext_features; GLuint cpu_ext_info; char cpu_vendor[13]; @@ -238,6 +245,7 @@ _mesa_get_x86_features(void) /* get cpu features */ cpu_features = _mesa_x86_cpuid_edx(1); + cpu_features_ecx = _mesa_x86_cpuid_ecx(1); if (cpu_features & X86_CPU_FPU) _mesa_x86_cpu_features |= X86_FEATURE_FPU; @@ -254,6 +262,8 @@ _mesa_get_x86_features(void) _mesa_x86_cpu_features |= X86_FEATURE_XMM; if (cpu_features & X86_CPU_XMM2) _mesa_x86_cpu_features |= X86_FEATURE_XMM2; + if (cpu_features_ecx & X86_CPU_SSE4_1) + _mesa_x86_cpu_features |= X86_FEATURE_SSE4_1; #endif /* query extended cpu features */ @@ -330,7 +340,18 @@ _mesa_get_x86_features(void) } #endif -#endif /* USE_X86_ASM */ +#elif defined(USE_X86_64_ASM) + unsigned int uninitialized_var(eax), uninitialized_var(ebx), + uninitialized_var(ecx), uninitialized_var(edx); + + /* Always available on x86-64. */ + _mesa_x86_cpu_features |= X86_FEATURE_XMM | X86_FEATURE_XMM2; + + __get_cpuid(1, &eax, &ebx, &ecx, &edx); + + if (ecx & bit_SSE4_1) + _mesa_x86_cpu_features |= X86_FEATURE_SSE4_1; +#endif /* USE_X86_64_ASM */ (void) detection_debug; } |