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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 10:14:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 10:14:56 -0700
commit41e0e0738cf864f4f49b11aac804496999b311d9 (patch)
tree0616361f85ae1181815c8c6afcaa767c142aac1d /arch/x86/kernel/cpu/amd.c
parente7fd3b4669f5b835c8afce28425d9f698a558115 (diff)
parent344c21c32287755b5cda0eeb84adb4546a57c1db (diff)
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Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, AMD: Set ARAT feature on AMD processors x86, quirk: Fix SB600 revision check x86: stop_machine_text_poke() should issue sync_core() x86, amd-nb: Misc cleanliness fixes
Diffstat (limited to 'arch/x86/kernel/cpu/amd.c')
-rw-r--r--arch/x86/kernel/cpu/amd.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index f771ab6..3ecece0 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -611,6 +611,10 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
}
}
#endif
+
+ /* As a rule processors have APIC timer running in deep C states */
+ if (c->x86 >= 0xf && !cpu_has_amd_erratum(amd_erratum_400))
+ set_cpu_cap(c, X86_FEATURE_ARAT);
}
#ifdef CONFIG_X86_32