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switch-linux/arch/x86/kernel/cpu
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Laura Abbott b51ef52df7 x86/cpu: Restore MSR_IA32_ENERGY_PERF_BIAS after resume 
MSR_IA32_ENERGY_PERF_BIAS is lost after suspend/resume:

	x86_energy_perf_policy -r before

	cpu0: 0x0000000000000006
	cpu1: 0x0000000000000006
	cpu2: 0x0000000000000006
	cpu3: 0x0000000000000006
	cpu4: 0x0000000000000006
	cpu5: 0x0000000000000006
	cpu6: 0x0000000000000006
	cpu7: 0x0000000000000006

	after

	cpu0: 0x0000000000000000
	cpu1: 0x0000000000000006
	cpu2: 0x0000000000000006
	cpu3: 0x0000000000000006
	cpu4: 0x0000000000000006
	cpu5: 0x0000000000000006
	cpu6: 0x0000000000000006
	cpu7: 0x0000000000000006

Resulting in inconsistent energy policy settings across CPUs.

This register is set via init_intel() at bootup. During resume,
the secondary CPUs are brought online again and init_intel() is
callled which re-initializes the register. The boot CPU however
never reinitializes the register.

Add a syscore callback to reinitialize the register for the boot CPU.

Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1437428878-4105-1-git-send-email-labbott@fedoraproject.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-21 07:51:38 +02:00
..
mcheck Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 17:59:09 -07:00
microcode x86/microcode: Correct CPU family related variable types 2015-06-07 15:38:15 +02:00
mtrr
.gitignore
amd.c Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 17:59:09 -07:00
bugs.c
bugs_64.c
centaur.c
common.c x86/cpu: Restore MSR_IA32_ENERGY_PERF_BIAS after resume 2015-07-21 07:51:38 +02:00
cpu.h x86/cpu: Restore MSR_IA32_ENERGY_PERF_BIAS after resume 2015-07-21 07:51:38 +02:00
cyrix.c
hypervisor.c
intel.c x86/cpu: Restore MSR_IA32_ENERGY_PERF_BIAS after resume 2015-07-21 07:51:38 +02:00
intel_cacheinfo.c x86: Kill CONFIG_X86_HT 2015-06-07 15:33:44 +02:00
intel_pt.h
Makefile
match.c
mkcapflags.sh
mshyperv.c
perf_event.c perf/x86: Fix 'active_events' imbalance 2015-06-30 13:08:46 +02:00
perf_event.h Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 15:45:41 -07:00
perf_event_amd.c
perf_event_amd_ibs.c
perf_event_amd_iommu.c
perf_event_amd_iommu.h
perf_event_amd_uncore.c
perf_event_intel.c Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 15:52:04 -07:00
perf_event_intel_bts.c Replace module_init with appropriate alternate initcall in non modules. 2015-07-02 10:36:29 -07:00
perf_event_intel_cqm.c
perf_event_intel_ds.c perf/x86/intel/pebs: Add PEBSv3 decoding 2015-06-07 16:09:16 +02:00
perf_event_intel_lbr.c perf/x86/intel: Drain the PEBS buffer during context switches 2015-06-07 16:08:54 +02:00
perf_event_intel_pt.c Replace module_init with appropriate alternate initcall in non modules. 2015-07-02 10:36:29 -07:00
perf_event_intel_rapl.c
perf_event_intel_uncore.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 18:57:44 -07:00
perf_event_intel_uncore.h Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 15:19:21 -07:00
perf_event_intel_uncore_nhmex.c
perf_event_intel_uncore_snb.c
perf_event_intel_uncore_snbep.c perf/x86/intel/uncore: Fix CBOX bit wide and UBOX reg on Haswell-EP 2015-06-07 15:46:50 +02:00
perf_event_knc.c
perf_event_p4.c
perf_event_p6.c
perfctr-watchdog.c
powerflags.c
proc.c
rdrand.c
scattered.c
topology.c
transmeta.c
umc.c
vmware.c