openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/arch/x86/kernel
History
Thomas Gleixner e9623b3559 x86: disable mwait for AMD family 10H/11H CPUs 
The previous revert of 0c07ee38c9 left
out the mwait disable condition for AMD family 10H/11H CPUs.

Andreas Herrman said:

It depends on the CPU. For AMD CPUs that support MWAIT this is wrong.
Family 0x10 and 0x11 CPUs will enter C1 on HLT. Powersavings then
depend on a clock divisor and current Pstate of the core.

If all cores of a processor are in halt state (C1) the processor can
enter the C1E (C1 enhanced) state. If mwait is used this will never
happen.

Thus HLT saves more power than MWAIT here.

It might be best to switch off the mwait flag for these AMD CPU
families like it was introduced with commit
f039b75471 (x86: Don't use MWAIT on AMD
Family 10)

Re-add the AMD families 10H/11H check and disable the mwait usage for
those.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
 		2008-05-17 22:57:20 +02:00
..
acpi x86: wakeup.lds.S - section ordering fix 2008-05-12 21:27:51 +02:00
cpu x86: cleanup PAT cpu validation 2008-05-08 15:43:51 +02:00
.gitignore .gitignore update for x86 arch 2007-10-17 21:19:04 +02:00
Makefile pcspkr: fix dependancies 2008-05-07 12:42:03 +02:00
alternative.c x86: harden kernel code patching 2008-04-25 19:54:07 +02:00
aperture_64.c x86: clean up aperture_64.c 2008-04-17 17:41:19 +02:00
apic_32.c x86: cleanup div_sc() usage 2008-04-26 17:35:47 +02:00
apic_64.c x86: cleanup div_sc() usage 2008-04-26 17:35:47 +02:00
apm_32.c Merge branches 'release', 'acpica', 'bugzilla-10224', 'bugzilla-9772', 'bugzilla-9916', 'ec', 'eeepc', 'idle', 'misc', 'pm-legacy', 'sysfs-links-2.6.26', 'thermal', 'thinkpad' and 'video' into release 2008-04-30 13:58:00 -04:00
asm-offsets.c
…
asm-offsets_32.c x86: use kbuild.h 2008-04-29 08:06:29 -07:00
asm-offsets_64.c x86: use kbuild.h 2008-04-29 08:06:29 -07:00
audit_64.c
…
bootflag.c x86: coding style cleanup for kernel/bootflag.c 2008-01-30 13:32:31 +01:00
bugs_64.c x86: don't use large pages to map the first 2/4MB of memory 2008-04-17 17:41:30 +02:00
cpuid.c PM: Remove destroy_suspended_device() 2008-04-19 19:10:28 -07:00
crash.c x86: allow machine_crash_shutdown to be replaced 2008-04-27 12:00:29 +03:00
crash_dump_32.c kmap leak fix for x86_32 kdump 2007-10-19 11:53:33 -07:00
crash_dump_64.c
…
doublefault_32.c x86: unify tss_struct 2008-01-30 13:31:31 +01:00
ds.c x86: debug Store - call kfree if only we really need it 2008-04-17 17:41:34 +02:00
e820_32.c x86: rename find_max_pfn() to propagate_e820_map() 2008-04-19 19:19:55 +02:00
e820_64.c bootprotocol: cleanup 2008-04-29 13:45:24 +02:00
early-quirks.c x86: fix section mismatch warning in early-quirks.c 2008-01-30 13:33:37 +01:00
early_printk.c x86: coding style fixes to x86/kernel/early_printk.c 2008-04-17 17:40:51 +02:00
efi.c x86: EFI_PAGE_SHIFT fix 2008-04-19 19:19:54 +02:00
efi_32.c x86: sparse error in efi_32.c 2008-02-19 16:18:28 +01:00
efi_64.c x86: EFI_PAGE_SHIFT fix 2008-04-19 19:19:54 +02:00
efi_stub_32.S
…
efi_stub_64.S x86: EFI runtime service support 2008-01-30 13:31:19 +01:00
entry_32.S xen: fold xen_sysexit into xen_iret 2008-04-24 23:57:33 +02:00
entry_64.S x86: ptrace vs -ENOSYS 2008-04-17 17:41:13 +02:00
genapic_64.c fix: x86: support for new UV apic 2008-04-30 23:15:34 +02:00
genapic_flat_64.c x86: use cpumask_of_cpu() 2008-04-17 17:41:36 +02:00
genx2apic_uv_x.c x86: UV startup of slave cpus 2008-04-19 19:19:58 +02:00
geode_32.c x86: GEODE: cache results from geode_has_vsa2() and uninline 2008-05-08 15:43:50 +02:00
head32.c x86: introduce kernel/head32.c 2008-04-17 17:40:49 +02:00
head64.c x86, boot: add linked list of struct setup_data 2008-04-26 21:34:42 +02:00
head_32.S x86: fix early-BUG message 2008-04-30 23:15:34 +02:00
head_64.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
hpet.c hpet: fix 2008-04-30 23:15:34 +02:00
i386_ksyms_32.c Generic semaphore implementation 2008-04-17 10:42:34 -04:00
i387.c x86: fix fpu restore from sig return 2008-05-10 19:31:45 +02:00
i8237.c Driver core: change sysdev classes to use dynamic kobject names 2008-01-24 20:40:40 -08:00
i8253.c x86: cleanup div_sc() usage 2008-04-26 17:35:47 +02:00
i8259_32.c x86: i8259A: remove redundant irq_descinitialization 2008-02-19 16:18:34 +01:00
i8259_64.c x86: provide a native_init_IRQ function on 64-bit 2008-01-30 13:33:19 +01:00
init_task.c x86: delay the export removal of init_mm 2008-02-29 18:55:42 +01:00
io_apic_32.c x86: Fix 32-bit MSI-X allocation leakage 2008-04-28 10:49:17 -07:00
io_apic_64.c x86: section mismatch fixes, #3 2008-04-26 17:35:48 +02:00
io_delay.c x86: add dmi quirk for io_delay 2008-03-26 22:23:40 +01:00
ioport.c x86: refactor ioport unification 2008-01-30 13:33:10 +01:00
ipi.c x86: create ipi.c 2008-04-17 17:40:56 +02:00
irq_32.c proper __do_softirq() prototype 2008-04-29 08:06:02 -07:00
irq_64.c x86: rename the struct pt_regs members for 32/64-bit consistency 2008-01-30 13:30:56 +01:00
k8.c
…
kdebugfs.c x86, boot: export linked list of struct setup_data via debugfs 2008-04-26 21:34:42 +02:00
kgdb.c x86: KGDB build fix 2008-04-19 19:19:54 +02:00
kprobes.c x86: replace most VM86 flags with flags from processor-flags.h 2008-04-17 17:41:33 +02:00
kvm.c x86: KVM guest: hypercall batching 2008-04-27 12:00:28 +03:00
kvmclock.c x86: KVM geust: make setup_secondary_clock definition dependent on local apic 2008-05-04 14:45:12 +03:00
ldt.c x86: cleanup - eliminate numbers in LDT allocation code 2008-02-04 16:48:03 +01:00
machine_kexec_32.c vmcoreinfo: fix the configuration dependencies 2008-02-07 08:42:25 -08:00
machine_kexec_64.c vmcoreinfo: add the symbol "phys_base" 2008-04-02 15:28:19 -07:00
mca_32.c x86: coding style fixes to arch/x86/kernel/mca_32.c 2008-04-17 17:40:49 +02:00
mfgpt_32.c x86: geode: MSR cleanup 2008-04-28 08:58:35 -07:00
microcode.c x86: use new set_cpus_allowed_ptr function 2008-04-19 19:44:58 +02:00
mmconf-fam10h_64.c x86: add pci=check_enable_amd_mmconf and dmi check 2008-04-26 23:41:04 +02:00
module_32.c
…
module_64.c
…
mpparse.c x86: es7000 build fix 2008-05-04 20:04:45 +02:00
msr.c PM: Remove destroy_suspended_device() 2008-04-19 19:10:28 -07:00
nmi_32.c ftrace: add notrace annotations for NMI routines 2008-04-19 19:19:55 +02:00
nmi_64.c ftrace: add notrace annotations for NMI routines 2008-04-19 19:19:55 +02:00
numaq_32.c x86: convert TSC disabling to generic cpuid disable bitmap 2008-01-30 13:33:20 +01:00
olpc.c x86: olpc: add One Laptop Per Child architecture support 2008-04-29 08:06:07 -07:00
paravirt.c x86: add pud_alloc for 4-level pagetables 2008-04-24 23:57:31 +02:00
paravirt_patch_32.c x86: move patching code to arch-specific file. 2008-01-30 13:32:10 +01:00
paravirt_patch_64.c x86: add stringify header 2008-01-30 13:33:19 +01:00
pci-calgary_64.c x86: remove duplicate get_bios_ebda() from rio.h 2008-04-26 17:35:47 +02:00
pci-dma.c x86/pci: fix broken ISA DMA 2008-05-12 21:27:50 +02:00
pci-gart_64.c x86: dma-ops on highmem fix 2008-04-19 19:19:56 +02:00
pci-nommu.c x86: unify pci-nommu 2008-04-19 19:19:57 +02:00
pci-swiotlb_64.c x86: dma-ops on highmem fix 2008-04-19 19:19:56 +02:00
pcspeaker.c
…
pmtimer_64.c x86: move pmtmr related declarations 2008-01-30 13:30:18 +01:00
process.c x86: disable mwait for AMD family 10H/11H CPUs 2008-05-17 22:57:20 +02:00
process_32.c fix idle (arch, acpi and apm) and lockdep 2008-04-27 00:01:45 +02:00
process_64.c fix idle (arch, acpi and apm) and lockdep 2008-04-27 00:01:45 +02:00
ptrace.c x86: user_regset_view table fix for ia32 on 64-bit 2008-05-13 19:40:20 +02:00
quirks.c x86: hpet clock enable quirk on nVidia nForce 430 2008-03-21 17:06:15 +01:00
reboot.c x86: remove dell reboot dmi quirk board name match 2008-05-04 20:04:45 +02:00
reboot_fixups_32.c x86: add the RDC machine specific reboot fixup 2008-01-30 13:33:36 +01:00
relocate_kernel_32.S x86: relocate_kernel - use predefined macroses for page attributes 2008-04-17 17:41:29 +02:00
relocate_kernel_64.S x86: relocate_kernel - use predefined macroses for page attributes 2008-04-17 17:41:29 +02:00
rtc.c x86: fix cmos read and write to not use inb_p and outb_p 2008-04-17 17:40:47 +02:00
scx200_32.c x86: fix sparse warning in kernel/scx200_32.c 2008-01-31 22:05:45 +01:00
setup.c x86: [VOYAGER] fix duplicate phys_cpu_present_map symbol 2008-05-12 21:27:51 +02:00
setup64.c x86: fix exec mappings comments 2008-04-19 19:19:55 +02:00
setup_32.c x86: restrict keyboard io ports reservation to make ipmi driver work 2008-05-10 19:31:45 +02:00
setup_64.c x86: early_init_centaur(): use set_cpu_cap() 2008-05-13 19:37:38 +02:00
sigframe.h x86: move struct definitions to unifed sigframe.h 2008-04-17 17:40:46 +02:00
signal_32.c signals: x86 TS_RESTORE_SIGMASK 2008-04-30 08:29:37 -07:00
signal_64.c signals: x86 TS_RESTORE_SIGMASK 2008-04-30 08:29:37 -07:00
smp.c x86: fix app crashes after SMP resume 2008-05-13 19:36:12 +02:00
smpboot.c x86: fix app crashes after SMP resume 2008-05-13 19:36:12 +02:00
smpcommon.c x86: create smpcommon.c 2008-04-17 17:40:55 +02:00
smpcommon_32.c x86: create smpcommon.c 2008-04-17 17:40:55 +02:00
srat_32.c x86: replace remaining __FUNCTION__ occurances 2008-04-17 17:40:57 +02:00
stacktrace.c x86: don't save unreliable stack trace entries 2008-02-26 12:55:58 +01:00
step.c x86: prevent unconditional writes to DebugCtl MSR 2008-04-17 17:40:58 +02:00
summit_32.c x86: use get_bios_ebda() 2008-04-26 17:35:47 +02:00
sys_i386_32.c unified (weak) sys_pipe implementation 2008-05-03 13:50:33 -07:00
sys_x86_64.c unified (weak) sys_pipe implementation 2008-05-03 13:50:33 -07:00
syscall_64.c x86: coding style fixes to arch/x86/kernel/syscall_64.c 2008-04-17 17:40:48 +02:00
syscall_table_32.S timerfd: wire the new timerfd API to the x86 family 2008-02-05 09:44:07 -08:00
tce_64.c x86: Create clflush() inline, remove hardcoded wbinvd 2007-10-17 20:16:12 +02:00
test_nx.c x86: Explicitly include required header files. 2008-04-17 17:41:15 +02:00
test_rodata.c x86: include proper prototypes for rodata_test 2008-02-14 23:30:20 +01:00
time_32.c proper extern for late_time_init 2008-04-29 08:06:03 -07:00
time_64.c time: fix typo in comments 2008-02-08 09:22:29 -08:00
tlb_32.c x86: create tlb files 2008-04-17 17:40:56 +02:00
tlb_64.c x86: use cpumask function for present, possible, and online cpus 2008-04-26 17:35:47 +02:00
tls.c asmlinkage_protect replaces prevent_tail_call 2008-04-10 17:28:26 -07:00
tls.h x86: x86 user_regset TLS 2008-01-30 13:31:52 +01:00
topology.c x86: fix section mismatch warning in topology.c:arch_register_cpu 2008-02-19 16:18:30 +01:00
trampoline.c x86: standalone trampoline code 2008-04-17 17:41:37 +02:00
trampoline_32.S x86: trampoline_32.S - switch to .cpuinit.data 2008-04-26 17:35:47 +02:00
trampoline_64.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
traps_32.c i386: fix signal type for iret exception 2008-04-26 17:35:46 +02:00
traps_64.c x86, fpu: lazy allocation of FPU area - v5 2008-04-19 19:19:55 +02:00
tsc_32.c x86: tsc prevent time going backwards 2008-04-19 19:19:55 +02:00
tsc_64.c x86: tsc prevent time going backwards 2008-04-19 19:19:55 +02:00
tsc_sync.c x86: add warning to check_tsc_warp() 2008-01-30 13:33:24 +01:00
verify_cpu_64.S
…
vm86_32.c x86: replace most VM86 flags with flags from processor-flags.h 2008-04-17 17:41:33 +02:00
vmi_32.c x86: unify KERNEL_PGD_PTRS 2008-04-24 23:57:31 +02:00
vmiclock_32.c x86: isolate PIC/PIT in/out calls 2008-01-30 13:33:14 +01:00
vmlinux.lds.S
…
vmlinux_32.lds.S x86: use ELF section to list CPU vendor specific code 2008-04-17 17:40:47 +02:00
vmlinux_64.lds.S x86_64 vDSO: use initdata 2008-04-28 13:49:35 -07:00
vsmp_64.c x86: fix warning in "x86: clean up vSMP detection" 2008-04-29 13:45:24 +02:00
vsyscall_64.c "make namespacecheck" fixes 2008-04-24 23:15:44 +02:00
x8664_ksyms_64.c x86: fix csum_partial() export 2008-05-13 19:38:47 +02:00