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Commit 8216f588 authored by Dietmar Eggemann's avatar Dietmar Eggemann Committed by Rafael J. Wysocki
Browse files

drivers base/arch_topology: allow inlining cpu-invariant accounting support 



Allow inlining of topology_get_cpu_scale() into the task
scheduler fast path (e.g. __update_load_avg_se()) by coding it as a
static inline function in the arch topology header file.

Signed-off-by: default avatarDietmar Eggemann <dietmar.eggemann@arm.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 0e27c567

drivers/base/arch_topology.c

+1 −6
Original line number Diff line number Diff line
@@ -37,12 +37,7 @@ void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq, 
}



static DEFINE_MUTEX(cpu_scale_mutex);

static DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;



unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)

{

	return per_cpu(cpu_scale, cpu);

}

DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;



void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity)

{

include/linux/arch_topology.h

+7 −1
Original line number Diff line number Diff line
@@ -12,8 +12,14 @@ void topology_normalize_cpu_scale(void); 
struct device_node;

bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);



DECLARE_PER_CPU(unsigned long, cpu_scale);



struct sched_domain;

unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu);

static inline

unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)

{

	return per_cpu(cpu_scale, cpu);

}



void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);