Stefan Bader 9855d8ce41 ACPI: Check MSR valid bit before using P-state frequencies ... To fix incorrect P-state frequencies which can happen on some AMD systems f594065faf "ACPI: Add fixups for AMD P-state figures" introduced a quirk to obtain the correct values by reading from AMD specific MSRs. This did cause a regression when running a kernel using that quirk under Xen which does (currently) not pass through MSR reads to the HW. Instead the guest gets a 0 in return. And this seems to cause a failure to initialize the ondemand governour (hard to say for sure as all P-states appear to run at the same frequency). While this should also be fixed in the hypervisor (to allow a guest to read that MSR), this patch is intended to work around the issue in the meantime. In discussion it turned out that indeed real HW/BIOSes may choose to not set the valid bit and thus mark the P-state as invalid. So this could be considered a fix for broken BIOSes that also works around the issue on Xen. Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Cc: 3.7+ <stable@vger.kernel.org> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2013-01-22 13:37:21 +01:00
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acpi	ACPI: Check MSR valid bit before using P-state frequencies	2013-01-22 13:37:21 +01:00
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base	drivers/base/cpu.c: Fix typo in comment	2013-01-16 12:34:34 -08:00
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cpufreq	cpufreq: cpufreq-cpu0: use RCU locks around usage of OPP	2013-01-22 13:28:39 +01:00
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devfreq	PM / devfreq: exynos4_bus: honor RCU lock usage	2013-01-22 13:28:40 +01:00
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idle	intel_idle: Don't register CPU notifier if we are not running.	2013-01-18 13:43:43 +01:00
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mfd	mfd, TWL4030: TWL4030 need select REGMAP_I2C	2013-01-16 12:36:22 -08:00
misc	Sound fixes #2 for 3.8-rc4	2013-01-16 11:33:52 -08:00
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