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| author | Florian Weimer <fweimer@redhat.com> | 2020-10-28 15:53:26 +0100 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2020-10-28 15:53:26 +0100 |
| commit | cb3a749a22a55645dc6a52659eea765300623f98 (patch) | |
| tree | edeb99f632f5b14348910b6c1abaf913348c970c /sysdeps/x86/cacheinfo.h | |
| parent | 9538f6b95a3be228edc078ce58258f0574142e0c (diff) | |
| download | glibc-cb3a749a22a55645dc6a52659eea765300623f98.tar.gz glibc-cb3a749a22a55645dc6a52659eea765300623f98.tar.xz glibc-cb3a749a22a55645dc6a52659eea765300623f98.zip | |
x86: Restore processing of cache size tunables in init_cacheinfo
Fixes and partially reverts commit 59803e81f96b479c17f583b31eac44b5
("x86: Optimizing memcpy for AMD Zen architecture.").
Diffstat (limited to 'sysdeps/x86/cacheinfo.h')
| -rw-r--r-- | sysdeps/x86/cacheinfo.h | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/sysdeps/x86/cacheinfo.h b/sysdeps/x86/cacheinfo.h index 1296c93b2b..0aec0e2875 100644 --- a/sysdeps/x86/cacheinfo.h +++ b/sysdeps/x86/cacheinfo.h @@ -354,11 +354,9 @@ init_cacheinfo (void) } } + /* Prefer cache size configure via tuning. */ if (cpu_features->data_cache_size != 0) - { - if (data == 0 || cpu_features->basic.kind != arch_kind_amd) - data = cpu_features->data_cache_size; - } + data = cpu_features->data_cache_size; if (data > 0) { @@ -370,11 +368,9 @@ init_cacheinfo (void) __x86_data_cache_size = data; } + /* Prefer cache size configure via tuning. */ if (cpu_features->shared_cache_size != 0) - { - if (shared == 0 || cpu_features->basic.kind != arch_kind_amd) - shared = cpu_features->shared_cache_size; - } + shared = cpu_features->shared_cache_size; if (shared > 0) { |