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| author | H.J. Lu <hjl.tools@gmail.com> | 2016-05-20 14:41:14 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2016-06-06 13:34:24 -0700 |
| commit | 5879566b641cf573099ce9200eb44148e40b9b34 (patch) | |
| tree | 4969d61ddaaad18e0d83ceb42fe6f4a19746da58 | |
| parent | 756fa392db3930cec9330169aef2c647df365432 (diff) | |
| download | glibc-5879566b641cf573099ce9200eb44148e40b9b34.tar.gz | |
Remove special L2 cache case for Knights Landing
L2 cache is shared by 2 cores on Knights Landing, which has 4 threads
per core:
https://en.wikipedia.org/wiki/Xeon_Phi#Knights_Landing
So L2 cache is shared by 8 threads on Knights Landing as reported by
CPUID. We should remove special L2 cache case for Knights Landing.
[BZ #18185]
* sysdeps/x86/cacheinfo.c (init_cacheinfo): Don't limit threads
sharing L2 cache to 2 for Knights Landing.
| -rw-r--r-- | sysdeps/x86/cacheinfo.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/sysdeps/x86/cacheinfo.c b/sysdeps/x86/cacheinfo.c index 020d3fd397..182426b2d0 100644 --- a/sysdeps/x86/cacheinfo.c +++ b/sysdeps/x86/cacheinfo.c @@ -573,8 +573,6 @@ init_cacheinfo (void) { switch (model) { - case 0x57: - /* Knights Landing has L2 cache shared by 2 cores. */ case 0x37: case 0x4a: case 0x4d: |