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| author | Nicholas Piggin <npiggin@gmail.com> | 2017-06-13 15:05:52 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-06-19 11:46:29 +0200 |
| commit | 95acdc07124f329ef3088a9bc68af905804b2e6b (patch) | |
| tree | 3eee5bfe5df186417b9f8a77f05b7863c2aba64d /arch/powerpc/kernel | |
| parent | powerpc/64s/idle: Avoid SRR usage in idle sleep/wake paths (diff) | |
| download | linux-95acdc07124f329ef3088a9bc68af905804b2e6b.tar.xz linux-95acdc07124f329ef3088a9bc68af905804b2e6b.zip | |
powerpc/64s/idle: Predict HMI wakeup as unlikely
In a busy system, idle wakeups can be expected from IPIs and device
interrupts.
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/idle_book3s.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S index ebe80b5d5ce4..1ea14b96f126 100644 --- a/arch/powerpc/kernel/idle_book3s.S +++ b/arch/powerpc/kernel/idle_book3s.S @@ -306,7 +306,7 @@ FTR_SECTION_ELSE_NESTED(66); \ rlwinm r0,r12,45-31,0xe; /* P7 wake reason field is 3 bits */ \ ALT_FTR_SECTION_END_NESTED_IFSET(CPU_FTR_ARCH_207S, 66); \ cmpwi r0,0xa; /* Hypervisor maintenance ? */ \ - bne 20f; \ + bne+ 20f; \ /* Invoke opal call to handle hmi */ \ ld r2,PACATOC(r13); \ ld r1,PACAR1(r13); \ |