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 independantly.
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; +} + const struct cpumask *cpu_coregroup_mask(int cpu) { return &cpu_topology[cpu].core_sibling;