[RFC 6/6] ARM: sched: clear SD_SHARE_POWERLINE
Santosh Shilimkar
santosh.shilimkar at ti.com
Wed Oct 24 11:21:57 EDT 2012
On Sunday 07 October 2012 01:13 PM, Vincent Guittot wrote:
> The ARM platforms take advantage of packing small tasks on few cores.
> This is true even when the cores of a cluster can't be powergated
> independently.
>
> Signed-off-by: Vincent Guittot <vincent.guittot at linaro.org>
> ---
> arch/arm/kernel/topology.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
> index 26c12c6..00511d0 100644
> --- a/arch/arm/kernel/topology.c
> +++ b/arch/arm/kernel/topology.c
> @@ -226,6 +226,11 @@ static inline void update_cpu_power(unsigned int cpuid, unsigned int mpidr) {}
> */
> struct cputopo_arm cpu_topology[NR_CPUS];
>
> +int arch_sd_share_power_line(void)
> +{
> + return 0*SD_SHARE_POWERLINE;
> +}
Making this selection of policy based on sched domain will better. Just
gives the flexibility to choose a separate scheme for big and little
systems which will be very convenient.
Regards
Santosh
More information about the linux-arm-kernel
mailing list