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| author | Michal Schmidt <mschmidt@redhat.com> | 2010-07-27 20:53:35 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-08-02 19:45:56 +0400 |
| commit | e8c534ec068af1a0845aceda373a9bfd2de62030 (patch) | |
| tree | 7ee35fd4b0103c04465c1cc5406f036fc07df53e /arch/x86/include/asm/processor.h | |
| parent | 9792db6174d9927700ed288e6d74b9391bf785d1 (diff) | |
| download | linux-e8c534ec068af1a0845aceda373a9bfd2de62030.tar.xz | |
x86: Fix keeping track of AMD C1E
Accomodate the original C1E-aware idle routine to the different times
during boot when the BIOS enables C1E. While at it, remove the synthetic
CPUID flag in favor of a single global setting which denotes C1E status
on the system.
[ hpa: changed c1e_enabled to be a bool; clarified cpu bit 3:21 comment ]
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
LKML-Reference: <20100727165335.GA11630@aftab>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/processor.h')
| -rw-r--r-- | arch/x86/include/asm/processor.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index d85637bb9505..325b7bdbebaa 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -762,6 +762,7 @@ extern void init_c1e_mask(void); extern unsigned long boot_option_idle_override; extern unsigned long idle_halt; extern unsigned long idle_nomwait; +extern bool c1e_detected; /* * on systems with caches, caches must be flashed as the absolute |