Borislav Petkov 93789b32db x86, hotplug: Fix powersavings with offlined cores on AMD ... ea53069231 made a CPU use monitor/mwait when offline. This is not the optimal choice for AMD wrt to powersavings and we'd prefer our cores to halt (i.e. enter C1) instead. For this, the same selection whether to use monitor/mwait has to be used as when we select the idle routine for the machine. With this patch, offlining cores 1-5 on a X6 machine allows core0 to boost again. [ hpa: putting this in urgent since it is a (power) regression fix ] Reported-by: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: stable@kernel.org # 37.x Cc: H. Peter Anvin <hpa@linux.intel.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Venkatesh Pallipadi <venki@google.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.hl> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <1295534572-10730-1-git-send-email-bp@amd64.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>		2011-01-21 18:14:54 -08:00
..
uv	x86, UV, BAU: Extend for more than 16 cpus per socket	2011-01-03 20:35:03 +01:00
visws
xen	Merge branch 'stable/gntdev' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen	2011-01-13 18:46:48 -08:00
a.out-core.h
a.out.h
acpi.h	x86, numa: Fix cpu to node mapping for sparse node ids	2010-12-23 15:27:16 -08:00
aes.h
agp.h
alternative-asm.h
alternative.h	Merge branches 'x86-alternatives-for-linus', 'x86-fpu-for-linus', 'x86-hwmon-for-linus', 'x86-paravirt-for-linus', 'core-locking-for-linus' and 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-01-06 11:11:50 -08:00
amd_iommu.h	Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-10-21 14:23:48 -07:00
amd_iommu_proto.h	x86/amd-iommu: Update copyright headers	2010-10-13 11:13:21 +02:00
amd_iommu_types.h	x86/amd-iommu: Update copyright headers	2010-10-13 11:13:21 +02:00
amd_nb.h	x86: Use PCI method for enabling AMD extended config space before MSR method	2011-01-11 12:43:41 +01:00
apb_timer.h	x86, cleanup: Remove obsolete boot_cpu_id variable	2010-08-12 14:01:38 -07:00
apic.h	Merge commit 'v2.6.37-rc8' into x86/apic	2011-01-04 09:43:42 +01:00
apicdef.h	x86, acpi: Add MAX_LOCAL_APIC for 32bit	2010-12-23 13:15:53 -08:00
apm.h
arch_hweight.h
asm-offsets.h
asm.h
atomic.h
atomic64_32.h
atomic64_64.h
auxvec.h
bios_ebda.h
bitops.h	bitops: make asm-generic/bitops/find.h more generic	2010-10-09 21:51:44 +02:00
bitsperlong.h
boot.h	x86: support XZ-compressed kernel	2011-01-13 08:03:25 -08:00
bootparam.h	x86: Add CE4100 platform support	2010-11-12 00:45:41 +01:00
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h	x86: Use asm-generic/cacheflush.h	2011-01-21 14:11:12 +01:00
calgary.h	x86, iommu: Make all IOMMU's detection routines return a value.	2010-08-26 15:13:13 -07:00
calling.h	x86, asm: Fix CFI macro invocations to deal with shortcomings in gas	2010-10-19 14:28:02 -07:00
checksum.h
checksum_32.h
checksum_64.h
cmpxchg.h
cmpxchg_32.h	x86, asm: Merge cmpxchg_486_u64() and cmpxchg8b_emu()	2010-07-28 17:05:11 -07:00
cmpxchg_64.h	x86, asm: Clean up and simplify <asm/cmpxchg.h>	2010-07-28 15:24:09 -07:00
compat.h	compat: Make compat_alloc_user_space() incorporate the access_ok()	2010-09-14 16:08:45 -07:00
cpu.h	x86, hotplug: Fix powersavings with offlined cores on AMD	2011-01-21 18:14:54 -08:00
cpufeature.h	Merge branch 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-10-21 13:01:08 -07:00
cpumask.h
cputime.h
current.h
debugreg.h	x86: Use this_cpu_ops to optimize code	2010-12-30 12:20:28 +01:00
delay.h
desc.h
desc_defs.h
device.h
div64.h
dma-mapping.h	dma-mapping: remove dma_is_consistent API	2010-08-11 08:59:21 -07:00
dma.h
dmi.h
dwarf2.h	x86: Use {push,pop}{l,q}_cfi in more places	2010-09-03 08:14:11 +02:00
e820.h	x86: avoid high BIOS area when allocating address space	2010-12-17 10:01:30 -08:00
edac.h
efi.h	x86, memblock: Replace e820_/_early string with memblock_	2010-08-27 11:13:47 -07:00
elf.h
emergency-restart.h
entry_arch.h	Merge branches 'softirq-for-linus', 'x86-debug-for-linus', 'x86-numa-for-linus', 'x86-quirks-for-linus', 'x86-setup-for-linus', 'x86-uv-for-linus' and 'x86-vm86-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-10-23 08:25:36 -07:00
errno.h
fb.h
fcntl.h
fixmap.h	x86: Fix Moorestown VRTC fixmap placement	2011-01-11 12:46:16 +01:00
floppy.h
frame.h
ftrace.h
futex.h
gart.h	Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-10-21 14:23:48 -07:00
genapic.h
geode.h
gpio.h	x86/gpio: Implement x86 gpio_to_irq convert function	2011-01-11 12:46:15 +01:00
hardirq.h	irq_work: Add generic hardirq context callbacks	2010-10-18 19:58:50 +02:00
highmem.h	mm: stack based kmap_atomic()	2010-10-26 16:52:08 -07:00
hpet.h	x86: ioapic/hpet: Convert to new chip functions	2010-10-12 16:53:37 +02:00
hugetlb.h
hw_breakpoint.h	x86: Fix instruction breakpoint encoding	2010-09-17 03:24:13 +02:00
hw_irq.h	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-10-21 14:11:46 -07:00
hypertransport.h
hyperv.h
hypervisor.h	xen: HVM X2APIC support	2011-01-07 10:03:50 -05:00
i387.h	x86-64, asm: Use fxsaveq/fxrestorq in more places	2010-10-22 15:33:38 -07:00
i8253.h
i8259.h	x86: i8259: Convert to new irq_chip functions	2010-10-12 16:53:36 +02:00
ia32.h
ia32_unistd.h
idle.h
inat.h
inat_types.h
init.h
insn.h
inst.h
intel_scu_ipc.h	Remove indirect read write api support.	2010-08-03 09:50:30 -04:00
io.h	Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen	2010-10-28 17:11:17 -07:00
io_apic.h	Merge commit 'v2.6.37-rc8' into x86/apic	2011-01-04 09:43:42 +01:00
ioctl.h
ioctls.h
iomap.h	mm: stack based kmap_atomic()	2010-10-26 16:52:08 -07:00
iommu.h
iommu_table.h	x86, iommu: Update header comments with appropriate naming	2010-10-08 13:11:21 -07:00
ipcbuf.h
ipi.h
irq.h	Merge branch 'x86-olpc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-01-13 10:15:12 -08:00
irq_regs.h
irq_remapping.h	x86: Speed up the irq_remapped check in hot pathes	2010-10-12 16:53:42 +02:00
irq_vectors.h	irq_work: Add generic hardirq context callbacks	2010-10-18 19:58:50 +02:00
irqflags.h	Fix IRQ flag handling naming	2010-10-07 14:08:55 +01:00
ist.h
jump_label.h	jump label: Remove duplicate structure for x86	2010-09-22 17:37:43 -04:00
Kbuild	archs: replace unifdef-y with header-y	2010-08-14 22:26:51 +02:00
kdebug.h	x86, NMI: Remove DIE_NMI_IPI	2011-01-07 15:08:53 +01:00
kexec.h
kgdb.h	kgdb,x86: Individual register get/set for x86	2010-08-05 09:22:20 -05:00
kmap_types.h
kmemcheck.h
kprobes.h
kvm.h	KVM: x86: XSAVE/XRSTOR live migration support	2010-08-01 10:46:37 +03:00
kvm_emulate.h	KVM: SVM: copy instruction bytes from VMCB	2011-01-12 11:31:07 +02:00
kvm_host.h	thp: mmu_notifier_test_young	2011-01-13 17:32:46 -08:00
kvm_para.h	KVM: x86: Add missing inline tag to kvm_read_and_reset_pf_reason	2011-01-12 11:23:27 +02:00
ldt.h
lguest.h
lguest_hcall.h
linkage.h
local.h
local64.h	arch: Implement local64_t	2010-06-09 11:12:36 +02:00
mach_timer.h
mach_traps.h	x86, NMI: Add NMI symbol constants and rename memory parity to PCI SERR	2011-01-07 15:08:51 +01:00
math_emu.h
mc146818rtc.h
mca.h
mca_dma.h
mce.h	x86, hwmon: Add core threshold notification to therm_throt.c	2011-01-03 08:30:30 -08:00
memblock.h	x86-32, memblock: Make add_highpages honor early reserved ranges	2010-10-05 21:44:35 -07:00
microcode.h	x86, microcode, AMD: Cleanup code a bit	2010-11-10 14:54:54 +01:00
mman.h
mmconfig.h
mmu.h
mmu_context.h
mmx.h
mmzone.h
mmzone_32.h
mmzone_64.h
module.h	x86: Remove CONFIG_4KSTACKS	2010-06-29 12:12:59 +02:00
mpspec.h	x86: Fix APIC ID sizing bug on larger systems, clean up MAX_APICS confusion	2011-01-05 14:09:23 +01:00
mpspec_def.h	x86: Fix APIC ID sizing bug on larger systems, clean up MAX_APICS confusion	2011-01-05 14:09:23 +01:00
mrst-vrtc.h	x86: mrst: Add vrtc driver which serves as a wall clock device	2010-11-11 11:34:27 +01:00
mrst.h	x86: mrst: Add vrtc driver which serves as a wall clock device	2010-11-11 11:34:27 +01:00
msgbuf.h
mshyperv.h
msidef.h
msr-index.h	Merge branches 'x86-alternatives-for-linus', 'x86-fpu-for-linus', 'x86-hwmon-for-linus', 'x86-paravirt-for-linus', 'core-locking-for-linus' and 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-01-06 11:11:50 -08:00
msr.h	x86, gcc-4.6: Avoid unused by set variables in rdmsr	2010-07-20 15:38:18 -07:00
mtrr.h
mutex.h
mutex_32.h
mutex_64.h
mwait.h	x86, mwait: Move mwait constants to a common header file	2010-09-17 15:36:40 -07:00
nmi.h	x86, NMI: Add priorities to handlers	2011-01-07 15:08:52 +01:00
nops.h
numa.h
numa_32.h	x86: Unify "numa=" command line option handling	2011-01-19 10:25:18 +01:00
numa_64.h	x86: Unify "numa=" command line option handling	2011-01-19 10:25:18 +01:00
numaq.h
olpc.h	drivers/staging/olpc_dcon: convert to new cs5535 gpio API	2011-01-13 08:03:13 -08:00
olpc_ofw.h	x86, olpc: Add OLPC device-tree support	2010-12-15 17:11:30 -08:00
page.h	x86: Document __phys_reloc_hide() usage in __pa_symbol()	2010-08-11 08:43:49 +02:00
page_32.h
page_32_types.h	x86: Remove CONFIG_4KSTACKS	2010-06-29 12:12:59 +02:00
page_64.h
page_64_types.h
page_types.h	x86-32: Fix sparse warning for the __PHYSICAL_MASK calculation	2010-10-07 16:36:17 -07:00
param.h
paravirt.h	thp: add pmd paravirt ops	2011-01-13 17:32:39 -08:00
paravirt_types.h	thp: add pmd paravirt ops	2011-01-13 17:32:39 -08:00
parport.h
pat.h
pci-direct.h
pci-functions.h
pci.h	x86: Add NX protection for kernel data	2010-11-18 12:52:04 +01:00
pci_64.h
pci_x86.h	x86/PCI: Clean up pci_cache_line_size	2010-10-18 10:49:30 -04:00
percpu.h	cpuops: Use cmpxchg for xchg to avoid lock semantics	2010-12-18 15:54:04 +01:00
perf_event.h	perf, arch: Cleanup perf-pmu init vs lockup-detector	2010-11-26 15:14:56 +01:00
perf_event_p4.h	perf, x86: P4 PMU - Fix unflagged overflows handling	2011-01-09 10:40:52 +01:00
pgalloc.h	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
pgtable-2level.h	thp: add x86 32bit support	2011-01-13 17:32:44 -08:00
pgtable-2level_types.h
pgtable-3level.h	thp: add x86 32bit support	2011-01-13 17:32:44 -08:00
pgtable-3level_types.h
pgtable.h	thp: don't allow transparent hugepage support without PSE	2011-01-13 17:32:45 -08:00
pgtable_32.h	mm: remove pte_*map_nested()	2010-10-26 16:52:08 -07:00
pgtable_32_types.h	x86: use __ASSEMBLY__ rather than __ASSEMBLER__	2010-06-07 17:27:11 -07:00
pgtable_64.h	thp: add x86 32bit support	2011-01-13 17:32:44 -08:00
pgtable_64_types.h
pgtable_types.h	thp: add pmd_modify	2011-01-13 17:32:44 -08:00
poll.h
posix_types.h
posix_types_32.h
posix_types_64.h
prctl.h
processor-cyrix.h
processor-flags.h
processor.h	Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6	2011-01-13 20:15:18 -08:00
prom.h	x86, olpc: Add OLPC device-tree support	2010-12-15 17:11:30 -08:00
proto.h
ptrace-abi.h
ptrace.h
pvclock-abi.h
pvclock.h	x86/pvclock: Zero last_value on resume	2010-11-28 09:33:20 +01:00
reboot.h
reboot_fixups.h
required-features.h	x86, cpu: Support the features flags in new CPUID leaf 7	2010-07-07 17:29:18 -07:00
resource.h
resume-trace.h
rio.h
rtc.h
rwlock.h
rwsem.h	x86, rwsem: Minor cleanups	2010-07-20 17:41:14 -07:00
scatterlist.h	remove needless ISA_DMA_THRESHOLD	2010-08-07 18:15:50 +02:00
seccomp.h
seccomp_32.h
seccomp_64.h
sections.h
segment.h	x86, asm: Fix CFI macro invocations to deal with shortcomings in gas	2010-10-19 14:28:02 -07:00
sembuf.h
serial.h
setup.h	x86: Add CE4100 platform support	2010-11-12 00:45:41 +01:00
setup_arch.h
shmbuf.h
shmparam.h
sigcontext.h
sigcontext32.h
sigframe.h
siginfo.h
signal.h
smp.h	x86, kexec: Make sure to stop all CPUs before exiting the kernel	2010-10-21 13:30:44 -07:00
smpboot_hooks.h	x86, nmi_watchdog: Remove all stub function calls from old nmi_watchdog	2010-11-18 09:08:23 +01:00
socket.h
sockios.h
sparsemem.h
spinlock.h
spinlock_types.h
srat.h
stackprotector.h
stacktrace.h	x86: Eliminate bp argument from the stack tracing routines	2010-11-18 14:37:34 +01:00
stat.h
statfs.h
string.h
string_32.h
string_64.h
suspend.h
suspend_32.h	PM / x86: Save/restore MISC_ENABLE register	2010-06-08 00:32:49 +02:00
suspend_64.h	PM / x86: Save/restore MISC_ENABLE register	2010-06-08 00:32:49 +02:00
svm.h	KVM: SVM: copy instruction bytes from VMCB	2011-01-12 11:31:07 +02:00
swab.h
swiotlb.h	x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine.	2010-08-26 15:13:29 -07:00
sync_bitops.h
sys_ia32.h	Mark arguments to certain syscalls as being const	2010-08-13 16:53:13 -07:00
syscall.h
syscalls.h	Make do_execve() take a const filename pointer	2010-08-17 18:07:43 -07:00
system.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2010-08-04 11:47:58 -07:00
system_64.h
tce.h
termbits.h
termios.h
thread_info.h	Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6	2010-05-28 16:14:17 -07:00
time.h
timer.h	x86, nmi_watchdog: Remove all stub function calls from old nmi_watchdog	2010-11-18 09:08:23 +01:00
timex.h
tlb.h
tlbflush.h	x86-32, mm: Add an initial page table for core bootstrapping	2010-10-20 14:23:55 -07:00
topology.h	numa: x86_64: use generic percpu var numa_node_id() implementation	2010-05-27 09:12:57 -07:00
trampoline.h	x86-32, mm: Add an initial page table for core bootstrapping	2010-10-20 14:23:55 -07:00
traps.h	KVM: Handle async PF in a guest.	2011-01-12 11:23:16 +02:00
tsc.h	x86, tsc, sched: Recompute cyc2ns_offset's during resume from sleep states	2010-08-20 14:59:02 +02:00
types.h
uaccess.h
uaccess_32.h
uaccess_64.h
ucontext.h
unaligned.h
unistd.h
unistd_32.h	Merge branch 'writable_limits' of git://decibel.fi.muni.cz/~xslaby/linux	2010-08-10 12:07:51 -07:00
unistd_64.h	Merge branch 'writable_limits' of git://decibel.fi.muni.cz/~xslaby/linux	2010-08-10 12:07:51 -07:00
user.h
user32.h
user_32.h
user_64.h
vdso.h
vga.h
vgtod.h
virtext.h
vm86.h
vmx.h	KVM: VMX: Add definitions for more vm entry/exit control bits	2011-01-12 11:31:08 +02:00
vsyscall.h
x86_init.h	x86: Introduce x86_msi_ops	2010-10-18 10:49:34 -04:00
xcr.h
xor.h
xor_32.h
xor_64.h
xsave.h	Merge branch 'x86-xsave-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-08-06 16:25:13 -07:00