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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 10:11:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 10:11:21 -0700
commitb9b16a792241e304834f43e2a5f02e6e43576f09 (patch)
treef90a0e2266b73a2197a31d4b129a08f3f55e7b06 /arch/x86/kernel
parentMerge branch 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff)
parentx86, cpufeature: If we disable CLFLUSH, we should disable CLFLUSHOPT (diff)
downloadlinux-dev-b9b16a792241e304834f43e2a5f02e6e43576f09.tar.xz
linux-dev-b9b16a792241e304834f43e2a5f02e6e43576f09.zip
Merge branch 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpufeature update from Ingo Molnar: "Two refinements to clflushopt support" * 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, cpufeature: If we disable CLFLUSH, we should disable CLFLUSHOPT x86, cpufeature: Rename X86_FEATURE_CLFLSH to X86_FEATURE_CLFLUSH
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/cpu/common.c3
-rw-r--r--arch/x86/kernel/smpboot.c2
2 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 8e28bf2fc3ef..cca53d88762a 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1025,7 +1025,8 @@ __setup("show_msr=", setup_show_msr);
static __init int setup_noclflush(char *arg)
{
- setup_clear_cpu_cap(X86_FEATURE_CLFLSH);
+ setup_clear_cpu_cap(X86_FEATURE_CLFLUSH);
+ setup_clear_cpu_cap(X86_FEATURE_CLFLUSHOPT);
return 1;
}
__setup("noclflush", setup_noclflush);
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 60179ec39d4c..5aad5a370c85 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1387,7 +1387,7 @@ static inline void mwait_play_dead(void)
if (!this_cpu_has(X86_FEATURE_MWAIT))
return;
- if (!this_cpu_has(X86_FEATURE_CLFLSH))
+ if (!this_cpu_has(X86_FEATURE_CLFLUSH))
return;
if (__this_cpu_read(cpu_info.cpuid_level) < CPUID_MWAIT_LEAF)
return;