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f4944613ad
linux_dsm_epyc7002/arch/powerpc/include/asm
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Suraj Jitindar Singh f4944613ad KVM: PPC: Decrease the powerpc default halt poll max value 
KVM_HALT_POLL_NS_DEFAULT is an arch specific constant which sets the
default value of the halt_poll_ns kvm module parameter which determines
the global maximum halt polling interval.

The current value for powerpc is 500000 (500us) which means that any
repetitive workload with a period of less than that can drive the cpu
usage to 100% where it may have been mostly idle without halt polling.
This presents the possibility of a large increase in power usage with
a comparatively small performance benefit.

Reduce the default to 10000 (10us) and a user can tune this themselves
to set their affinity for halt polling based on the trade off between power
and performance which they are willing to make.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2016-11-28 11:48:47 +11:00
..
book3s powerpc/64: Simplify adaptation to new ISA v3.00 HPTE format 2016-11-16 15:43:25 +11:00
nohash powerpc/mm/radix: Use different pte update sequence for different POWER9 revs 2016-09-13 17:37:10 +10:00
8xx_immap.h
accounting.h powerpc32: provide VIRT_CPU_ACCOUNTING 2016-07-09 01:43:50 -05:00
agp.h
archrandom.h
asm-compat.h powerpc/ebpf/jit: Implement JIT compiler for extended BPF 2016-06-24 15:17:57 +10:00
asm-offsets.h
asm-prototypes.h KVM: PPC: Book3S HV: sparse: prototypes for functions called from assembler 2016-11-21 15:17:54 +11:00
async_tx.h
atomic.h powerpc: Remove static branch prediction in atomic{, 64}_add_unless 2016-10-04 16:13:13 +11:00
backlight.h
barrier.h powerpc: define __smp_xxx 2016-01-12 20:46:53 +02:00
bitops.h
bootx.h
btext.h
bug.h
bugs.h
cache.h powerpc: add inline functions for cache related instructions 2016-03-11 17:20:11 -06:00
cacheflush.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00
cell-pmu.h
cell-regs.h
checksum.h arch/powerpc: Update parameters for csum_tcpudp_magic & csum_tcpudp_nofold 2016-10-29 17:06:23 -04:00
cmpxchg.h powerpc: Use BUILD_BUG_ON_MSG() for unsupported {cmp}xchg sizes 2016-02-24 20:08:48 +11:00
code-patching.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
compat.h
context_tracking.h
copro.h
cpm1.h
cpm2.h
cpm.h QE: Move QE from arch/powerpc to drivers/soc 2015-12-22 17:12:56 -06:00
cpu_has_feature.h powerpc/kernel: Fix size of NUM_CPU_FTR_KEYS on 32-bit 2016-09-12 12:48:28 +10:00
cpufeature.h powerpc: Add module autoloading based on CPU features 2016-07-21 20:33:57 +10:00
cpuidle.h powerpc: Convert cmp to cmpd in idle enter sequence 2016-10-22 08:44:38 +11:00
cputable.h powerpc/8xx: add dedicated machine check handler 2016-09-25 02:38:55 -05:00
cputhreads.h powerpc: cputhreads: Add missing include file 2016-08-22 11:09:33 +10:00
cputime.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00
current.h
dbdma.h
dbell.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00
dcr-generic.h
dcr-mmio.h
dcr-native.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00
dcr-regs.h
dcr.h
debug.h
delay.h
device.h
disassemble.h KVM: PPC: e500: Emulate TMCFG0 TMRN register 2015-10-15 15:58:16 +11:00
dma-mapping.h dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
dma.h
edac.h
eeh_event.h
eeh.h powerpc/pci: Delay populating pdn 2016-06-21 15:30:56 +10:00
ehv_pic.h
elf.h
emergency-restart.h
emulated_ops.h
epapr_hcalls.h
exception-64e.h powerpc/e6500: hw tablewalk: make sure we invalidate and write to the same tlb entry 2015-10-27 18:14:40 -05:00
exception-64s.h powerpc/64s: relocation, register save fixes for system reset interrupt 2016-10-27 21:55:14 +11:00
exec.h
fadump.h powerpc/fadump: Set core e_flags using kernel's ELF ABI version 2016-09-13 17:36:01 +10:00
fb.h
feature-fixups.h powerpc/32: Fix crash during static key init 2016-08-10 19:41:58 +10:00
firmware.h powerpc: Move FW feature probing out of pseries probe() 2016-07-21 18:56:13 +10:00
fixmap.h powerpc/8xx: Fix vaddr for IMMR early remap 2016-07-09 02:02:48 -05:00
floppy.h
fs_pd.h
fsl_85xx_cache_sram.h
fsl_gtm.h
fsl_hcalls.h
fsl_lbc.h
fsl_pamu_stash.h
fsl_pm.h powerpc/rcpm: add RCPM driver 2016-03-04 23:50:27 -06:00
ftrace.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
futex.h
grackle.h
hardirq.h
head-64.h powerpc: Use gas sections for arranging exception vectors 2016-10-04 13:06:56 +11:00
heathrow.h
highmem.h kmap_atomic_to_page() has no users, remove it 2015-11-09 15:11:24 -08:00
hmi.h powerpc: move hmi.c to arch/powerpc/kvm/ 2016-09-09 16:18:07 +10:00
hugetlb.h powerpc/mm: Use hugetlb flush functions 2016-08-01 11:15:09 +10:00
hvcall.h powerpc: Put exception configuration in a common place 2016-07-21 18:56:31 +10:00
hvconsole.h
hvcserver.h
hvsi.h
hw_breakpoint.h
hw_irq.h powerpc/8xx: use SPRN_EIE and SPRN_EID to enable/disable interrupts 2016-09-25 02:38:53 -05:00
hydra.h powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
i8259.h
ibmebus.h
icswx.h crypto: nx-842 - Mask XERS0 bit in return value 2015-12-17 16:42:12 +08:00
ide.h
immap_cpm2.h
io_event_irq.h
io-defs.h
io-workarounds.h
io.h powerpc: Add simple cache inhibited MMIO accessors 2016-09-09 16:17:59 +10:00
iommu.h dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
ipic.h
irq_work.h
irq.h
irqflags.h
jump_label.h powerpc updates for 4.8 #2 2016-08-05 09:00:54 -04:00
Kbuild ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
kdebug.h
kdump.h
kexec.h
keylargo.h
kgdb.h
kmap_types.h
kprobes.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
kvm_asm.h KVM: PPC: Book3S HV: Enable hypervisor virtualization interrupts while in guest 2016-11-24 09:24:23 +11:00
kvm_book3s_32.h
kvm_book3s_64.h KVM: PPC: Book3S: Remove duplicate setting of the B field in tlbie 2016-09-27 15:14:29 +10:00
kvm_book3s_asm.h powerpc/powernv: Add platform support for stop instruction 2016-07-15 20:18:41 +10:00
kvm_book3s.h KVM: PPC: Book3S: Treat VTB as a per-subcore register, not per-thread 2016-09-27 14:41:39 +10:00
kvm_booke_hv_asm.h
kvm_booke.h
kvm_fpu.h
kvm_host.h KVM: PPC: Decrease the powerpc default halt poll max value 2016-11-28 11:48:47 +11:00
kvm_para.h
kvm_ppc.h KVM: PPC: Book3S HV: Use OPAL XICS emulation on POWER9 2016-11-24 09:24:23 +11:00
libata-portmap.h libata: remove unused definitions from <asm/libata-portmap.h> 2016-09-22 11:50:19 -04:00
linkage.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
livepatch.h powerpc/livepatch: Add livepatch stack to struct thread_info 2016-04-14 15:47:06 +10:00
local.h
lppaca.h
lv1call.h
machdep.h powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
macio.h
mc146818rtc.h
mce.h
mediabay.h
mm-arch-hooks.h
mman.h powerpc updates for 4.8 #2 2016-08-05 09:00:54 -04:00
mmu_context.h powerpc: During context switch, check before setting mm_cpumask 2016-10-04 16:12:16 +11:00
mmu-8xx.h powerpc/8xx: Fix vaddr for IMMR early remap 2016-07-09 02:02:48 -05:00
mmu-40x.h
mmu-44x.h
mmu-book3e.h powerpc/64/kexec: Fix MMU cleanup on radix 2016-09-23 07:54:17 +10:00
mmu.h powerpc/64: Provide functions for accessing POWER9 partition table 2016-11-23 10:32:11 +11:00
mmzone.h powerpc: implement arch_reserved_kernel_pages 2016-10-07 18:46:28 -07:00
module.h Merge branch 'topic/mprofile-kernel' into next 2016-03-11 11:20:15 +11:00
mpc5xxx.h
mpc6xx.h
mpc52xx_psc.h powerpc: mpc512x: drop bogus and unused psc register bit definitions 2015-10-22 16:06:08 +02:00
mpc52xx.h powerpc: Make ppc_md.{halt, restart} __noreturn 2016-07-14 21:12:06 +10:00
mpc85xx.h
mpc5121.h powerpc/512x: add LocalPlus Bus FIFO device driver 2015-10-22 15:19:40 +02:00
mpc8260.h
mpic_msgr.h powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpic_timer.h
mpic.h
msi_bitmap.h powerpc/msi: Free the bitmap if it was slab allocated 2015-10-05 21:32:50 +11:00
mutex.h locking/mutex: Optimize mutex_trylock() fast-path 2016-06-08 15:17:01 +02:00
nmi.h
nvram.h
ohare.h
opal-api.h powerpc/opal: Add real mode call wrappers 2016-07-17 16:42:46 +10:00
opal.h powerpc/powernv: Define real-mode versions of OPAL XICS accessors 2016-11-23 10:32:11 +11:00
oprofile_impl.h
paca.h powerpc: move hmi.c to arch/powerpc/kvm/ 2016-09-09 16:18:07 +10:00
page_32.h powerpc32: Remove clear_pages() and define clear_page() inline 2016-03-11 17:20:11 -06:00
page_64.h powerpc/mm/slice: Remove slice_mm_new_context() 2016-05-11 21:54:00 +10:00
page.h powerpc/32: Remove RELOCATABLE_PPC32 2016-07-19 20:17:07 +10:00
parport.h powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
pasemi_dma.h
pci-bridge.h powerpc/pseries: use pci_host_bridge.release_fn() to kfree(phb) 2016-08-22 11:09:33 +10:00
pci.h PCI: Unify pci_resource_to_user() declarations 2016-06-17 14:43:34 -05:00
percpu.h
perf_event_fsl_emb.h
perf_event_server.h powerpc/perf: Export Power8 generic and cache events to sysfs 2016-03-10 22:56:05 +11:00
perf_event.h
pgalloc.h powerpc/mm: Copy pgalloc (part 2) 2016-05-11 21:53:49 +10:00
pgtable-be-types.h powerpc/mm: use _raw variant of page table accessors 2016-07-17 16:42:51 +10:00
pgtable-types.h powerpc/mm: Add pte_xchg() helper 2016-05-01 18:32:16 +10:00
pgtable.h powerpc/mm: check for irq disabled() only if DEBUG_VM is enabled 2016-07-26 16:19:19 -07:00
plpar_wrappers.h powerpc/mm: Use H_READ with H_READ_4 2015-12-14 15:19:17 +11:00
pmac_feature.h powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
pmac_low_i2c.h
pmac_pfunc.h
pmc.h
pmi.h
pnv-pci.h powerpc updates for 4.9 2016-10-07 20:19:31 -07:00
ppc4xx_ocm.h
ppc4xx.h powerpc: Make ppc_md.{halt, restart} __noreturn 2016-07-14 21:12:06 +10:00
ppc_asm.h powerpc/32: Remove CLR_TOP32 2016-09-23 07:54:22 +10:00
ppc-opcode.h Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next 2016-10-11 20:07:56 +11:00
ppc-pci.h powerpc/pci: Delay populating pdn 2016-06-21 15:30:56 +10:00
probes.h
processor.h powerpc: tm: Enable transactional memory (TM) lazily for userspace 2016-10-04 20:33:17 +11:00
prom.h
ps3.h powerpc/64: Move MMU backend selection out of platform code 2016-07-21 18:56:38 +10:00
ps3av.h powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
ps3gpu.h
ps3stor.h
pte-common.h powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
ptrace.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
reg_8xx.h powerpc/8xx: use SPRN_EIE and SPRN_EID to enable/disable interrupts 2016-09-25 02:38:53 -05:00
reg_a2.h
reg_booke.h powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
reg_fsl_emb.h
reg.h powerpc/powernv: Define and set POWER9 HFSCR doorbell bit 2016-11-23 11:18:22 +11:00
rheap.h
rio.h
rtas.h powerpc: Merge 32-bit and 64-bit setup_arch() 2016-07-21 19:17:46 +10:00
runlatch.h
scom.h
seccomp.h
sections.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
serial.h
setjmp.h
setup.h powerpc: Put exception configuration in a common place 2016-07-21 18:56:31 +10:00
sfp-machine.h
shmparam.h
signal.h powerpc: signals: Stop using current in signal code 2016-10-04 16:43:07 +11:00
smp.h powerpc: Merge 32-bit and 64-bit setup_arch() 2016-07-21 19:17:46 +10:00
smu.h powerpc/pmac: Remove early allocation of the SMU command buffer 2016-07-21 18:56:38 +10:00
sparsemem.h
spinlock_types.h
spinlock.h powerpc/spinlock: Fix spin_unlock_wait() 2016-06-14 16:05:44 +10:00
spu_csa.h
spu_info.h
spu_priv1.h
spu.h
sstep.h
string.h powerpc: Remove assembly versions of strcpy, strcat, strlen and strcmp 2016-06-14 13:58:25 +10:00
swab.h
swiotlb.h
switch_to.h powerpc/ptrace: Fix coredump since ptrace TM changes 2016-08-10 16:34:20 +10:00
synch.h powerpc: Factor do_feature_fixup calls 2016-07-21 18:51:42 +10:00
syscall.h
syscalls.h
systbl.h powerpc: wire up preadv2 and pwritev2 syscalls 2016-04-27 16:47:55 +10:00
tce.h powerpc/powernv/pci: Remove SWINV constants and obsolete TCE code 2016-07-17 16:42:47 +10:00
termios.h
thread_info.h signal: consolidate {TS,TLF}_RESTORE_SIGMASK code 2016-08-02 19:35:23 -04:00
time.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00
timex.h
tlb.h powerpc/mm/radix: Use tlbiel only if we ever ran on the current cpu 2016-10-27 21:55:13 +11:00
tlbflush.h powerpc/mm: remove flush_tlb_page_nohash 2016-08-01 11:15:13 +10:00
tm.h powerpc: Remove do_load_up_transact_{fpu,altivec} 2016-10-04 20:33:16 +11:00
topology.h
trace_clock.h
trace.h powerpc/pseries: Don't trace hcalls on offline CPUs 2016-02-15 21:10:03 +11:00
tsi108_irq.h
tsi108_pci.h genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
tsi108.h powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
types.h powerpc: Define and use PPC64_ELF_ABI_v2/v1 2016-06-14 13:58:27 +10:00
uaccess.h Merge branch 'uaccess-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-09-14 09:35:05 -07:00
udbg.h
uic.h
unaligned.h
uninorth.h powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
unistd.h powerpc: Ignore the pkey system calls for now 2016-10-19 20:36:24 +11:00
uprobes.h
user.h
vdso_datapage.h powerpc: Standardise on NR_syscalls rather than __NR_syscalls. 2015-11-26 22:11:17 +11:00
vdso.h
vga.h
vio.h
word-at-a-time.h powerpc: Fix bad inline asm constraint in create_zero_mask() 2016-05-02 11:10:25 +10:00
xics.h powerpc/xics: Properly set Edge/Level type and enable resend 2016-08-09 14:50:18 +10:00
xilinx_intc.h
xilinx_pci.h
xmon.h
xor.h powerpc: Move cpu_has_feature() to a separate file 2016-08-01 11:15:03 +10:00