Re: [PATCHv3 03/10] ARM: smp_twd: Divorce smp_twd from local timerAPI
From: Stephen Boyd
Date: Thu Mar 28 2013 - 16:09:50 EST
On 03/28/13 08:22, Mark Rutland wrote:
> This works on my A9x4 coretile, bringing CPUs up and down via
> /sys/devices/system/cpu/*/online, so:
>
> Tested-by: Mark Rutland <mark.rutland@xxxxxxx>
Thanks. I still need to resolve patch #1 though.
>
> Otherwise, is there any reason we couldn't now use the twd driver on a UP
> system? Or would the overhead of handling frequency change make this pointless?
I don't see why not but I don't have any interest in pursuing it.
>
> On Wed, Mar 13, 2013 at 06:17:49PM +0000, Stephen Boyd wrote:
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index 5b71469..5ad2ccf 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -1527,6 +1527,7 @@ config SMP
>> depends on HAVE_SMP
>> depends on MMU
>> select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
>> + select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
> Could you not depend on your "Push selects for TWD/SCU into machine entries"
> for this?
Right now the patches don't depend on the push down patch. Are you
saying it would be better to depend on that patch?
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by The Linux Foundation
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/