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Deepthi Dharwar 8ea959a17f cpuidle/powerpc: Fix smt_snooze_delay functionality. 
smt_snooze_delay was designed to  delay idle loop's nap entry
in the native idle code before it got  ported over to use as part of
the cpuidle framework.

A -ve value  assigned to smt_snooze_delay should result in
busy looping, in other words disabling the entry to nap state.

	- https://lists.ozlabs.org/pipermail/linuxppc-dev/2010-May/082450.html

This particular functionality can be achieved currently by
echo 1 > /sys/devices/system/cpu/cpu*/state1/disable
but it is broken when one assigns -ve value to  the smt_snooze_delay
variable either via sysfs entry or ppc64_cpu util.

This patch aims to fix this, by disabling nap state when smt_snooze_delay
variable is set to -ve value.

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-10-18 10:57:24 +11:00
..
8xx_immap.h
agp.h
asm-compat.h powerpc: Change mtcrf to use real register names 2012-07-10 19:18:11 +10:00
asm-offsets.h
async_tx.h
atomic.h atomic: implement generic atomic_dec_if_positive() 2012-10-09 16:22:46 +09:00
backlight.h
barrier.h Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
bitops.h powerpc: bitops: introduce {clear,set}_bit_le() 2012-10-06 03:04:55 +09:00
bootx.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
btext.h
bug.h Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
bugs.h
cache.h Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
cacheflush.h powerpc/85xx: add HOTPLUG_CPU support 2012-09-12 14:57:08 -05:00
cell-pmu.h
cell-regs.h
checksum.h
clk_interface.h
cmpxchg.h Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
code-patching.h powerpc: Have patch_instruction detect faults 2012-07-03 14:14:38 +10:00
compat.h compat: move compat_siginfo_t definition to asm/compat.h 2012-10-06 03:05:16 +09:00
cpm.h
cpm1.h
cpm2.h
cputable.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
cputhreads.h powerpc: Fixing a cputhread code documentation 2012-05-22 14:37:00 +10:00
cputime.h Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-01-06 17:58:22 -08:00
current.h
dbdma.h
dbell.h KVM: PPC: e500mc: Add doorbell emulation support 2012-04-08 12:54:50 +03:00
dcr-generic.h
dcr-mmio.h
dcr-native.h
dcr-regs.h
dcr.h
debug.h powerpc: Rework set_dabr so it can take a DABRX value as well 2012-09-10 09:59:10 +10:00
delay.h
device.h powerpc: IOMMU fault injection 2012-07-10 19:18:59 +10:00
disassemble.h
div64.h
dma-mapping.h common: dma-mapping: add support for generic dma_mmap_* calls 2012-07-30 12:25:46 +02:00
dma.h Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
edac.h
eeh.h powerpc/eeh: Remove EEH PE for normal PCI hotplug 2012-09-18 15:32:23 +10:00
eeh_event.h powerpc/eeh: Handle EEH error based on PE 2012-09-10 09:35:43 +10:00
ehv_pic.h irq_domain/powerpc: Use common irq_domain structure instead of irq_host 2012-02-14 14:06:50 -07:00
elf.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
emergency-restart.h
emulated_ops.h
epapr_hcalls.h KVM: PPC: Factor out guest epapr initialization 2012-05-30 11:43:10 +02:00
exception-64e.h powerpc/booke64: Use SPRG0/3 scratch for bolted TLB miss & crit int 2012-09-05 15:35:52 +10:00
exception-64s.h powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly 2012-07-11 14:18:22 +10:00
exec.h Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
fadump.h fadump: Invalidate registration and release reserved memory for general use. 2012-02-23 10:50:02 +11:00
fb.h
feature-fixups.h
firmware.h powerpc: Remove FW_FEATURE ISERIES from arch code 2012-03-21 11:16:11 +11:00
fixmap.h
floppy.h
fs_pd.h
fsl_85xx_cache_sram.h
fsl_gtm.h
fsl_guts.h powerpc/85xx: implement hardware timebase sync 2012-09-12 14:57:08 -05:00
fsl_hcalls.h
fsl_ifc.h powerpc/mpc85xx: Add new ext fields to Integrated FLash Controller 2012-09-12 14:57:10 -05:00
fsl_lbc.h
ftrace.h
futex.h
gpio.h gpiolib/arches: Centralise bolierplate asm/gpio.h 2012-05-11 18:00:14 -06:00
grackle.h
hardirq.h
heathrow.h
highmem.h highmem: kill all __kmap_atomic() 2012-03-20 21:48:30 +08:00
hugetlb.h mm: hugetlb: add arch hook for clearing page flags before entering pool 2012-10-09 16:22:24 +09:00
hvcall.h powerpc: cleanup old DABRX #defines 2012-09-10 09:59:16 +10:00
hvconsole.h
hvcserver.h
hvsi.h
hw_breakpoint.h powerpc: Dynamically calculate the dabrx based on kernel/user/hypervisor 2012-09-10 09:59:13 +10:00
hw_irq.h KVM updates for the 3.6 merge window 2012-07-24 12:01:20 -07:00
hydra.h
i8259.h irq_domain/powerpc: Use common irq_domain structure instead of irq_host 2012-02-14 14:06:50 -07:00
ibmebus.h
ide.h
immap_cpm2.h
immap_qe.h powerpc/qe: set IReady in QE Microcode Upload 2012-07-10 07:08:58 -05:00
io-defs.h
io-workarounds.h
io.h powerpc: Disable /dev/port interface on systems without an ISA bridge 2012-07-11 18:22:32 +10:00
io_event_irq.h
iommu.h powerpc/iommu: Implement IOMMU pools to improve multiqueue adapter performance 2012-07-03 14:14:48 +10:00
ipic.h
irq.h powerpc/irqdomain: Fix broken NR_IRQ references 2012-04-30 10:45:26 +10:00
irq_regs.h
irqflags.h powerpc: Rework lazy-interrupt handling 2012-03-09 13:25:06 +11:00
jump_label.h static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]() 2012-02-24 10:05:59 +01:00
Kbuild UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
kdebug.h
kdump.h
kexec.h
keylargo.h Typos: change aditional to additional. 2012-02-21 11:40:36 +01:00
kgdb.h
kmap_types.h powerpc: remove km_type definitions 2012-07-24 15:27:29 +08:00
kprobes.h powerpc/kprobes: Rename opcode_t in probes.h to ppc_opcode_t 2012-09-07 09:48:50 +10:00
kvm_44x.h
kvm_asm.h KVM: PPC: Restrict PPC_[L|ST]D macro to asm code 2012-05-06 16:19:08 +02:00
kvm_book3s.h powerpc/mm: Convert virtual address to vpn 2012-09-17 16:31:49 +10:00
kvm_book3s_32.h powerpc: Build fix for powerpc KVM 2012-10-18 10:37:52 +11:00
kvm_book3s_64.h KVM: PPC: Book3S HV: Make the guest hash table size configurable 2012-05-30 11:43:10 +02:00
kvm_book3s_asm.h powerpc: Restore VDSO information on critical exception om BookE 2012-09-07 09:48:49 +10:00
kvm_booke.h KVM: PPC: factor out lpid allocator from book3s_64_mmu_hv 2012-04-08 12:51:02 +03:00
kvm_booke_hv_asm.h KVM: PPC: booke: category E.HV (GS-mode) support 2012-04-08 12:51:19 +03:00
kvm_fpu.h
kvm_host.h Merge remote-tracking branch 'upstream/master' into queue 2012-08-26 13:58:41 -03:00
kvm_para.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
kvm_ppc.h KVM: PPC: Add cache flush on page map 2012-08-16 14:14:53 +02:00
libata-portmap.h
local.h
local64.h
lppaca.h powerpc: Reformat lppaca.h 2012-04-30 15:37:16 +10:00
lv1call.h powerpc/ps3: Correct lv1 repository routine names 2012-04-24 15:34:16 -07:00
machdep.h powerpc/mm: Convert virtual address to vpn 2012-09-17 16:31:49 +10:00
macio.h
mc146818rtc.h
mediabay.h
mman.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
mmu-8xx.h
mmu-40x.h
mmu-44x.h
mmu-book3e.h KVM: PPC: booke: category E.HV (GS-mode) support 2012-04-08 12:51:19 +03:00
mmu-hash32.h
mmu-hash64.h powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit 2012-09-17 16:31:53 +10:00
mmu.h powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit 2012-09-17 16:31:53 +10:00
mmu_context.h
mmzone.h
module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
mpc5xxx.h
mpc6xx.h
mpc8xx.h
mpc52xx.h powerpc/mpc52xx_lpbfifo: optionally defer fifo transfer start 2012-09-14 10:15:35 +02:00
mpc52xx_psc.h
mpc5121.h
mpc8260.h
mpic.h powerpc/mpic: FSL MPIC error interrupt support. 2012-09-12 14:57:10 -05:00
mpic_msgr.h powerpc/mpic_msgr: Add missing includes 2012-08-24 20:26:04 +10:00
msi_bitmap.h
mutex.h
nvram.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
ohare.h
opal.h
oprofile_impl.h
paca.h powerpc/mm: Use 32bit array for slb cache 2012-09-17 16:31:51 +10:00
page.h
page_32.h
page_64.h powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit 2012-09-17 16:31:53 +10:00
parport.h
pasemi_dma.h
pci-bridge.h powerpc/eeh: Fix crash on converting OF node to edev 2012-09-18 15:32:51 +10:00
pci.h powerpc/PCI: compute I/O space bus-to-resource offset consistently 2012-03-20 10:41:44 -07:00
percpu.h
perf_event.h powerpc/perf: Move code to select SIAR or pt_regs into perf_read_regs 2012-07-10 19:18:41 +10:00
perf_event_fsl_emb.h
perf_event_server.h powerpc/perf: Sample only if SIAR-Valid bit is set in P7+ 2012-09-27 12:51:05 +10:00
pgalloc-32.h
pgalloc-64.h
pgalloc.h
pgtable-ppc32.h
pgtable-ppc64-4k.h powerpc/mm: Add 64TB support 2012-09-17 16:31:51 +10:00
pgtable-ppc64-64k.h powerpc/mm: Add 64TB support 2012-09-17 16:31:51 +10:00
pgtable-ppc64.h powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit 2012-09-17 16:31:53 +10:00
pgtable.h powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit 2012-09-17 16:31:53 +10:00
pmac_feature.h
pmac_low_i2c.h
pmac_pfunc.h
pmc.h
pmi.h
ppc-opcode.h powerpc: Add denormalisation exception handling for POWER6/7 2012-09-17 16:31:47 +10:00
ppc-pci.h powerpc/eeh: Cleanup on EEH PCI address cache 2012-09-10 09:59:00 +10:00
ppc4xx.h
ppc_asm.h powerpc: Enforce usage of R0-R31 where possible 2012-07-10 19:18:30 +10:00
probes.h powerpc/kprobes: Rename opcode_t in probes.h to ppc_opcode_t 2012-09-07 09:48:50 +10:00
processor.h cpuidle/powerpc: Fix smt_snooze_delay functionality. 2012-10-18 10:57:24 +11:00
prom.h
ps3.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
ps3av.h
ps3gpu.h
ps3stor.h
pSeries_reconfig.h powerpc/pseries: Add pseries update notifier for OFDT prop changes 2012-05-14 10:49:06 +10:00
pte-8xx.h
pte-40x.h
pte-44x.h
pte-book3e.h
pte-common.h
pte-fsl-booke.h
pte-hash32.h
pte-hash64-4k.h
pte-hash64-64k.h powerpc/mm: Convert virtual address to vpn 2012-09-17 16:31:49 +10:00
pte-hash64.h
ptrace.h Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-10-13 11:21:15 +09:00
qe.h powerpc/qe: set IReady in QE Microcode Upload 2012-07-10 07:08:58 -05:00
qe_ic.h
reg.h powerpc/perf: Sample only if SIAR-Valid bit is set in P7+ 2012-09-27 12:51:05 +10:00
reg_8xx.h
reg_a2.h
reg_booke.h Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2012-05-24 16:17:30 -07:00
reg_fsl_emb.h
rheap.h
rio.h
rtas.h Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
rtc.h
runlatch.h Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
scatterlist.h
scom.h
sections.h
serial.h
setjmp.h
sfp-machine.h
shmparam.h
signal.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
smp.h powerpc/85xx: add HOTPLUG_CPU support 2012-09-12 14:57:08 -05:00
smu.h
sparsemem.h powerpc/mm: Add 64TB support 2012-09-17 16:31:51 +10:00
spinlock.h powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces 2012-03-21 11:16:12 +11:00
spinlock_types.h
spu.h Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-01-08 12:19:57 -08:00
spu_csa.h
spu_info.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
spu_priv1.h
sstep.h
string.h
swab.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
swiotlb.h powerpc/swiotlb: Enable at early stage and disable if not necessary 2012-09-12 14:57:09 -05:00
switch_to.h Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2012-05-24 16:17:30 -07:00
synch.h
syscall.h
syscalls.h powerpc: switch to generic sys_execve()/kernel_execve() 2012-09-30 23:35:51 -04:00
systbl.h compat: fs: Generic compat_sys_sendfile implementation 2012-10-02 21:35:55 -04:00
tce.h
termios.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
thread_info.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-10-12 10:49:08 +09:00
time.h cputime: Consolidate vtime handling on context switch 2012-08-20 13:05:28 +02:00
timex.h
tlb.h
tlbflush.h powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit 2012-09-17 16:31:53 +10:00
topology.h sched/numa: Rewrite the CONFIG_NUMA sched domain support 2012-05-09 15:00:55 +02:00
trace.h powerpc: tracing: Avoid tracepoint duplication with DECLARE_EVENT_CLASS 2012-07-03 14:14:41 +10:00
tsi108.h
tsi108_irq.h
tsi108_pci.h
types.h UAPI: (Scripted) Disintegrate arch/powerpc/include/asm 2012-10-09 09:47:26 +01:00
uaccess.h powerpc: Remove unused __get_user64() and __put_user64() 2012-09-18 15:32:36 +10:00
ucc.h
ucc_fast.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
ucc_slow.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
udbg.h powerpc: Random little legacy iSeries removal tidy ups 2012-03-28 11:33:23 +11:00
uic.h
unaligned.h
uninorth.h
unistd.h Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-10-13 11:21:15 +09:00
uprobes.h powerpc/kprobes: Rename opcode_t in probes.h to ppc_opcode_t 2012-09-07 09:48:50 +10:00
user.h
vdso.h powerpc: Add VDSO version of getcpu 2012-07-11 14:18:40 +10:00
vdso_datapage.h
vga.h
vio.h powerpc: Call dma_debug_add_bus for PCI and VIO buses 2012-07-10 19:18:57 +10:00
word-at-a-time.h powerpc: Use the new generic strncpy_from_user() and strnlen_user() 2012-05-27 21:00:07 -07:00
wsp.h
xics.h irq_domain/powerpc: Use common irq_domain structure instead of irq_host 2012-02-14 14:06:50 -07:00
xilinx_intc.h
xilinx_pci.h
xmon.h
xor.h