diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/x86_64/cacheinfo.c | 8 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/init-arch.c | 18 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/init-arch.h | 24 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/sched_cpucount.c | 5 |
4 files changed, 19 insertions, 36 deletions
diff --git a/sysdeps/x86_64/cacheinfo.c b/sysdeps/x86_64/cacheinfo.c index cd192caad8..362687c181 100644 --- a/sysdeps/x86_64/cacheinfo.c +++ b/sysdeps/x86_64/cacheinfo.c @@ -489,10 +489,10 @@ init_cacheinfo (void) } #ifdef USE_MULTIARCH - eax = __cpu_features.cpuid[INTEL_CPUID_INDEX_1].eax; - ebx = __cpu_features.cpuid[INTEL_CPUID_INDEX_1].ebx; - ecx = __cpu_features.cpuid[INTEL_CPUID_INDEX_1].ecx; - edx = __cpu_features.cpuid[INTEL_CPUID_INDEX_1].edx; + eax = __cpu_features.cpuid[COMMON_CPUID_INDEX_1].eax; + ebx = __cpu_features.cpuid[COMMON_CPUID_INDEX_1].ebx; + ecx = __cpu_features.cpuid[COMMON_CPUID_INDEX_1].ecx; + edx = __cpu_features.cpuid[COMMON_CPUID_INDEX_1].edx; #else asm volatile ("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) diff --git a/sysdeps/x86_64/multiarch/init-arch.c b/sysdeps/x86_64/multiarch/init-arch.c index eb4365fe32..ec0eb29faf 100644 --- a/sysdeps/x86_64/multiarch/init-arch.c +++ b/sysdeps/x86_64/multiarch/init-arch.c @@ -1,6 +1,6 @@ /* Initialize CPU feature data. This file is part of the GNU C Library. - Copyright (C) 2008 Free Software Foundation, Inc. + Copyright (C) 2008, 2009 Free Software Foundation, Inc. Contributed by Ulrich Drepper <drepper@redhat.com>. The GNU C Library is free software; you can redistribute it and/or @@ -41,11 +41,12 @@ __init_cpu_features (void) { __cpu_features.kind = arch_kind_intel; + get_common_cpuid: asm volatile ("cpuid" - : "=a" (__cpu_features.cpuid[INTEL_CPUID_INDEX_1].eax), - "=b" (__cpu_features.cpuid[INTEL_CPUID_INDEX_1].ebx), - "=c" (__cpu_features.cpuid[INTEL_CPUID_INDEX_1].ecx), - "=d" (__cpu_features.cpuid[INTEL_CPUID_INDEX_1].edx) + : "=a" (__cpu_features.cpuid[COMMON_CPUID_INDEX_1].eax), + "=b" (__cpu_features.cpuid[COMMON_CPUID_INDEX_1].ebx), + "=c" (__cpu_features.cpuid[COMMON_CPUID_INDEX_1].ecx), + "=d" (__cpu_features.cpuid[COMMON_CPUID_INDEX_1].edx) : "0" (1)); } /* This spells out "AuthenticAMD". */ @@ -53,12 +54,7 @@ __init_cpu_features (void) { __cpu_features.kind = arch_kind_amd; - asm volatile ("cpuid" - : "=a" (__cpu_features.cpuid[AMD_CPUID_INDEX_1].eax), - "=b" (__cpu_features.cpuid[AMD_CPUID_INDEX_1].ebx), - "=c" (__cpu_features.cpuid[AMD_CPUID_INDEX_1].ecx), - "=d" (__cpu_features.cpuid[AMD_CPUID_INDEX_1].edx) - : "0" (1)); + goto get_common_cpuid; } else __cpu_features.kind = arch_kind_other; diff --git a/sysdeps/x86_64/multiarch/init-arch.h b/sysdeps/x86_64/multiarch/init-arch.h index 86cd83dc4c..40b804571d 100644 --- a/sysdeps/x86_64/multiarch/init-arch.h +++ b/sysdeps/x86_64/multiarch/init-arch.h @@ -1,5 +1,5 @@ /* This file is part of the GNU C Library. - Copyright (C) 2008 Free Software Foundation, Inc. + Copyright (C) 2008, 2009 Free Software Foundation, Inc. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -20,16 +20,9 @@ enum { - INTEL_CPUID_INDEX_1 = 0, + COMMON_CPUID_INDEX_1 = 0, /* Keep the following line at the end. */ - INTEL_CPUID_INDEX_MAX - }; - -enum - { - AMD_CPUID_INDEX_1 = 0, - /* Keep the following line at the end. */ - AMD_CPUID_INDEX_MAX + COMMON_CPUID_INDEX_MAX }; extern struct cpu_features @@ -48,7 +41,7 @@ extern struct cpu_features unsigned int ebx; unsigned int ecx; unsigned int edx; - } cpuid[MAX (INTEL_CPUID_INDEX_MAX, AMD_CPUID_INDEX_MAX)]; + } cpuid[COMMON_CPUID_INDEX_MAX]; } __cpu_features attribute_hidden; @@ -61,10 +54,5 @@ extern void __init_cpu_features (void) attribute_hidden; /* Following are the feature tests used throughout libc. */ -#define INTEL_HAS_POPCOUNT \ - (__cpu_features.kind == arch_kind_intel \ - && (__cpu_features.cpuid[INTEL_CPUID_INDEX_1].ecx & (1 << 23)) != 0) - -#define AMD_HAS_POPCOUNT \ - (__cpu_features.kind == arch_kind_amd \ - && (__cpu_features.cpuid[AMD_CPUID_INDEX_1].ecx & (1 << 23)) != 0) +#define HAS_POPCOUNT \ + ((__cpu_features.cpuid[COMMON_CPUID_INDEX_1].ecx & (1 << 23)) != 0) diff --git a/sysdeps/x86_64/multiarch/sched_cpucount.c b/sysdeps/x86_64/multiarch/sched_cpucount.c index dc20182df4..e7f9daed05 100644 --- a/sysdeps/x86_64/multiarch/sched_cpucount.c +++ b/sysdeps/x86_64/multiarch/sched_cpucount.c @@ -1,6 +1,6 @@ /* Count bits in CPU set. x86-64 multi-arch version. This file is part of the GNU C Library. - Copyright (C) 2008 Free Software Foundation, Inc. + Copyright (C) 2008, 2009 Free Software Foundation, Inc. Contributed by Ulrich Drepper <drepper@redhat.com>. The GNU C Library is free software; you can redistribute it and/or @@ -35,8 +35,7 @@ # undef __sched_cpucount libc_ifunc (__sched_cpucount, - INTEL_HAS_POPCOUNT || AMD_HAS_POPCOUNT - ? popcount_cpucount : generic_cpucount); + HAS_POPCOUNT ? popcount_cpucount : generic_cpucount); #else # include_next <sched_cpucount.c> #endif |