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| author |   Dietmar Eggemann <dietmar.eggemann@arm.com> | 2017-09-26 17:41:11 +0100 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-10-03 02:37:54 +0200 |
| commit | 8216f588b52b61ce36fc0080218e4730435e58b7 (patch) | |
| tree | a65d5176435ac175bcf4c6fb29995e5fe3b8cb24 /include/linux/arch_topology.h | |
| parent | drivers base/arch_topology: provide frequency-invariant accounting support (diff) | |
| download | linux-dev-8216f588b52b61ce36fc0080218e4730435e58b7.tar.xz linux-dev-8216f588b52b61ce36fc0080218e4730435e58b7.zip | |
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: Dietmar Eggemann <dietmar.eggemann@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/arch_topology.h')
| -rw-r--r-- | include/linux/arch_topology.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/arch_topology.h b/include/linux/arch_topology.h index f6e490312e4d..c189de3ef5df 100644 --- a/include/linux/arch_topology.h +++ b/include/linux/arch_topology.h @@ -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); |