From: Gautham R Shenoy <ego@linux.vnet.ibm.com>
To: Nicholas Piggin <npiggin@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org,
"Gautham R . Shenoy" <ego@linux.vnet.ibm.com>,
"Shreyas B . Prabhu" <shreyas@linux.vnet.ibm.com>
Subject: Re: [PATCH 09/14] powerpc/64s: idle hmi wakeup is unlikely
Date: Mon, 12 Jun 2017 20:33:22 +0530 [thread overview]
Message-ID: <20170612150322.GF10921@in.ibm.com> (raw)
In-Reply-To: <20170611235835.7400-10-npiggin@gmail.com>
On Mon, Jun 12, 2017 at 09:58:30AM +1000, Nicholas Piggin wrote:
> In a busy system, idle wakeups can be expected from IPIs and device
> interrupts.
>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
> ---
> arch/powerpc/kernel/idle_book3s.S | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S
> index 6305d4d7a268..32b76fb28352 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); \
> --
> 2.11.0
>
next prev parent reply other threads:[~2017-06-12 15:03 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-11 23:58 [PATCH 00/14 v2] idle performance improvements Nicholas Piggin
2017-06-11 23:58 ` [PATCH 01/14] powerpc/64s: idle move soft interrupt mask logic into C code Nicholas Piggin
2017-06-12 8:37 ` Gautham R Shenoy
2017-06-12 14:46 ` Nicholas Piggin
2017-06-13 4:28 ` Gautham R Shenoy
2017-06-11 23:58 ` [PATCH 02/14] powerpc/64s: idle hotplug lazy-irq simplification Nicholas Piggin
2017-06-11 23:58 ` [PATCH 03/14] powerpc/64s: idle provide a default idle for POWER9 Nicholas Piggin
2017-06-12 8:53 ` Gautham R Shenoy
2017-06-12 14:46 ` Nicholas Piggin
2017-06-11 23:58 ` [PATCH 04/14] powerpc/64s: idle process interrupts from system reset wakeup Nicholas Piggin
2017-06-12 9:41 ` Gautham R Shenoy
2017-06-12 14:51 ` Nicholas Piggin
2017-06-11 23:58 ` [PATCH 05/14] powerpc/64s: msgclr when handling doorbell exceptions Nicholas Piggin
2017-06-12 14:38 ` Gautham R Shenoy
2017-06-11 23:58 ` [PATCH 06/14] powerpc/64s: interrupt replay balance the return branch predictor Nicholas Piggin
2017-06-12 14:41 ` Gautham R Shenoy
2017-06-13 9:51 ` Michael Ellerman
2017-06-13 11:09 ` Nicholas Piggin
2017-06-11 23:58 ` [PATCH 07/14] powerpc/64s: idle branch to handler with virtual mode offset Nicholas Piggin
2017-06-11 23:58 ` [PATCH 08/14] powerpc/64s: idle avoid SRR usage in idle sleep/wake paths Nicholas Piggin
2017-06-13 10:25 ` Gautham R Shenoy
2017-06-13 10:45 ` Nicholas Piggin
2017-06-11 23:58 ` [PATCH 09/14] powerpc/64s: idle hmi wakeup is unlikely Nicholas Piggin
2017-06-12 15:03 ` Gautham R Shenoy [this message]
2017-06-11 23:58 ` [PATCH 10/14] powerpc/64s: cpuidle set polling before enabling irqs Nicholas Piggin
2017-06-12 15:10 ` Gautham R Shenoy
2017-06-12 15:20 ` Nicholas Piggin
2017-06-11 23:58 ` [PATCH 11/14] powerpc/64s: cpuidle read mostly for common globals Nicholas Piggin
2017-06-12 15:30 ` Gautham R Shenoy
2017-06-12 17:50 ` Vaidyanathan Srinivasan
2017-06-11 23:58 ` [PATCH 12/14] powerpc/64s: cpuidle no memory barrier after break from idle Nicholas Piggin
2017-06-12 17:48 ` Vaidyanathan Srinivasan
2017-06-13 12:47 ` Nicholas Piggin
2017-06-11 23:58 ` [PATCH 13/14] powerpc/64: runlatch CTRL[RUN] set optimisation Nicholas Piggin
2017-06-12 17:11 ` Vaidyanathan Srinivasan
2017-06-13 10:04 ` Michael Ellerman
2017-06-13 11:56 ` Nicholas Piggin
2017-06-13 13:45 ` Benjamin Herrenschmidt
2017-06-14 3:34 ` Michael Ellerman
2017-06-11 23:58 ` [PATCH 14/14] powerpc/64s: idle runlatch switch is done with MSR[EE]=0 Nicholas Piggin
2017-06-12 17:00 ` Vaidyanathan Srinivasan
-- strict thread matches above, loose matches on Subject: below --
2017-06-08 15:50 [PATCH 00/14] idle performance improvements Nicholas Piggin
2017-06-08 15:51 ` [PATCH 09/14] powerpc/64s: idle hmi wakeup is unlikely Nicholas Piggin
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