diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_cpu_detect.c')
| -rw-r--r-- | src/gallium/auxiliary/util/u_cpu_detect.c | 44 |
1 files changed, 29 insertions, 15 deletions
diff --git a/src/gallium/auxiliary/util/u_cpu_detect.c b/src/gallium/auxiliary/util/u_cpu_detect.c index ecfb96138d..70ce25cfcf 100644 --- a/src/gallium/auxiliary/util/u_cpu_detect.c +++ b/src/gallium/auxiliary/util/u_cpu_detect.c @@ -73,7 +73,7 @@ struct util_cpu_caps util_cpu_caps; static int has_cpuid(void); -static int cpuid(unsigned int ax, unsigned int *p); +static int cpuid(uint32_t ax, uint32_t *p); #if defined(PIPE_ARCH_X86) @@ -331,28 +331,42 @@ static int has_cpuid(void) #endif } + +/** + * @sa cpuid.h included in gcc-4.3 onwards. + */ static INLINE int -cpuid(unsigned int ax, unsigned int *p) +cpuid(uint32_t ax, uint32_t *p) { int ret = -1; -#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64) -#if defined(PIPE_CC_GCC) - __asm __volatile - ("movl %%ebx, %%esi\n\t" - "cpuid\n\t" - "xchgl %%ebx, %%esi" - : "=a" (p[0]), "=S" (p[1]), - "=c" (p[2]), "=d" (p[3]) - : "0" (ax)); - +#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) + __asm __volatile ( + "xchgl %%ebx, %1\n\t" + "cpuid\n\t" + "xchgl %%ebx, %1" + : "=a" (p[0]), + "=m" (p[1]), + "=c" (p[2]), + "=d" (p[3]) + : "0" (ax) + ); + ret = 0; +#elif defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86_64) + __asm __volatile ( + "cpuid\n\t" + : "=a" (p[0]), + "=b" (p[1]), + "=c" (p[2]), + "=d" (p[3]) + : "0" (ax) + ); ret = 0; #elif defined(PIPE_CC_MSVC) __cpuid(ax, p); ret = 0; #endif -#endif return ret; } @@ -406,8 +420,8 @@ util_cpu_detect(void) #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64) if (has_cpuid()) { - unsigned int regs[4]; - unsigned int regs2[4]; + uint32_t regs[4]; + uint32_t regs2[4]; util_cpu_caps.cacheline = 32; |