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author | Dave Airlie <airlied@redhat.com> | 2012-12-07 22:17:07 -0500 |
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committer | Dave Airlie <airlied@redhat.com> | 2012-12-10 05:03:58 -0500 |
commit | 1a1494def7eacbd25db05185aa2e81ef90892460 (patch) | |
tree | 40911f075b1fe527c6d20bf8c3070d4cdca11e97 /arch/x86/kernel/cpu/amd.c | |
parent | 8de9e417757fb9f130f55a38f4ee7027b60de1c7 (diff) | |
parent | 71bfe916ebe6d026cd3d0e41c398574fc1228e03 (diff) |
Merge branch 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux into drm-next
Alex writes:
Pretty minor -next pull request. We some additional new bits waiting
internally for release. Hopefully Monday we can get at least some of
them out. The others will probably take a few more weeks.
Highlights of the current request:
- ELD registers for passing audio information to the sound hardware
- Handle GPUVM page faults more gracefully
- Misc fixes
Merge radeon test
* 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux: (483 commits)
drm/radeon: bump driver version for new info ioctl requests
drm/radeon: fix eDP clk and lane setup for scaled modes
drm/radeon: add new INFO ioctl requests
drm/radeon/dce32+: use fractional fb dividers for high clocks
drm/radeon: use cached memory when evicting for vram on non agp
drm/radeon: add a CS flag END_OF_FRAME
drm/radeon: stop page faults from hanging the system (v2)
drm/radeon/dce4/5: add registers for ELD handling
drm/radeon/dce3.2: add registers for ELD handling
radeon: fix pll/ctrc mapping on dce2 and dce3 hardware
Linux 3.7-rc7
powerpc/eeh: Do not invalidate PE properly
Revert "drm/i915: enable rc6 on ilk again"
ALSA: hda - Fix build without CONFIG_PM
of/address: sparc: Declare of_iomap as an extern function for sparc again
PM / QoS: fix wrong error-checking condition
bnx2x: remove redundant warning log
vxlan: fix command usage in its doc
8139cp: revert "set ring address before enabling receiver"
MPI: Fix compilation on MIPS with GCC 4.4 and newer
...
Conflicts:
drivers/gpu/drm/exynos/exynos_drm_encoder.c
drivers/gpu/drm/exynos/exynos_drm_fbdev.c
drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
Diffstat (limited to 'arch/x86/kernel/cpu/amd.c')
-rw-r--r-- | arch/x86/kernel/cpu/amd.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index f7e98a2c0d12..1b7d1656a042 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c | |||
@@ -631,6 +631,20 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) | |||
631 | } | 631 | } |
632 | } | 632 | } |
633 | 633 | ||
634 | /* | ||
635 | * The way access filter has a performance penalty on some workloads. | ||
636 | * Disable it on the affected CPUs. | ||
637 | */ | ||
638 | if ((c->x86 == 0x15) && | ||
639 | (c->x86_model >= 0x02) && (c->x86_model < 0x20)) { | ||
640 | u64 val; | ||
641 | |||
642 | if (!rdmsrl_safe(0xc0011021, &val) && !(val & 0x1E)) { | ||
643 | val |= 0x1E; | ||
644 | wrmsrl_safe(0xc0011021, val); | ||
645 | } | ||
646 | } | ||
647 | |||
634 | cpu_detect_cache_sizes(c); | 648 | cpu_detect_cache_sizes(c); |
635 | 649 | ||
636 | /* Multi core CPU? */ | 650 | /* Multi core CPU? */ |