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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2011-12-21 09:51:23 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-12-21 09:51:23 +0100 |
| commit | dfa9d178cd28caf5d76bc4f37f4b3e7e8df8e697 (patch) | |
| tree | d97ca7790d8a622cba9fdd19832decdb0aa6418a /arch/x86/include/asm/msr.h | |
| parent | 3f19f08a7ec74cfc50fbad3c5e615760afbd23a0 (diff) | |
| parent | 7b4050381127ae11fcfc74a106d715a5fbbf888a (diff) | |
| download | op-kernel-dev-dfa9d178cd28caf5d76bc4f37f4b3e7e8df8e697.zip op-kernel-dev-dfa9d178cd28caf5d76bc4f37f4b3e7e8df8e697.tar.gz | |
Merge branch 'devfreq-for-next' of git://git.infradead.org/users/kmpark/linux-samsung into pm-devfreq
* 'devfreq-for-next' of git://git.infradead.org/users/kmpark/linux-samsung: (765 commits)
PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.
pci: Fix hotplug of Express Module with pci bridges
i2c-eg20t: correct the driver init order of pch_i2c_probe()
I2C: OMAP: fix FIFO usage for OMAP4
i2c-s3c2410: Fix return code of s3c24xx_i2c_parse_dt_gpio
i2c: i2c-s3c2410: Add a cpu_relax() to busy wait for bus idle
Linux 3.2-rc6
Revert "drm/i915: fix infinite recursion on unbind due to ilk vt-d w/a"
btrfs: lower the dirty balance poll interval
drm/i915/dp: Dither down to 6bpc if it makes the mode fit
drm/i915: enable semaphores on per-device defaults
drm/i915: don't set unpin_work if vblank_get fails
drm/i915: By default, enable RC6 on IVB and SNB when reasonable
iommu: Export intel_iommu_enabled to signal when iommu is in use
drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check
drm/i915: prevent division by zero when asking for chipset power
drm/i915: add PCH info to i915_capabilities
drm/i915: set the right SDVO transcoder for CPT
drm/i915: no-lvds quirk for ASUS AT5NM10T-I
sched: Fix select_idle_sibling() regression in selecting an idle SMT sibling
...
Diffstat (limited to 'arch/x86/include/asm/msr.h')
| -rw-r--r-- | arch/x86/include/asm/msr.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h index 084ef95..95203d4 100644 --- a/arch/x86/include/asm/msr.h +++ b/arch/x86/include/asm/msr.h @@ -169,7 +169,14 @@ static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high) return native_write_msr_safe(msr, low, high); } -/* rdmsr with exception handling */ +/* + * rdmsr with exception handling. + * + * Please note that the exception handling works only after we've + * switched to the "smart" #GP handler in trap_init() which knows about + * exception tables - using this macro earlier than that causes machine + * hangs on boxes which do not implement the @msr in the first argument. + */ #define rdmsr_safe(msr, p1, p2) \ ({ \ int __err; \ |
