On 24 October 2012 17:21, Santosh Shilimkar santosh.shilimkar@ti.com wrote:
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@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.
I agree that it would be more flexible to be able to set it for each level
Regards Santosh