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sched/topology: Relocate arch_scale_cpu_capacity() to the internal header 

By default, arch_scale_cpu_capacity() is only visible from within the
kernel/sched folder. Relocate it to include/linux/sched/topology.h to
make it visible to other clients needing to know about the capacity of
CPUs, such as the Energy Model framework.

This also shrinks the <linux/sched/topology.h> public header.

Signed-off-by: Quentin Perret <quentin.perret@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: adharmap@codeaurora.org
Cc: chris.redpath@arm.com
Cc: currojerez@riseup.net
Cc: dietmar.eggemann@arm.com
Cc: edubezval@gmail.com
Cc: gregkh@linuxfoundation.org
Cc: javi.merino@kernel.org
Cc: joel@joelfernandes.org
Cc: juri.lelli@redhat.com
Cc: morten.rasmussen@arm.com
Cc: patrick.bellasi@arm.com
Cc: pkondeti@codeaurora.org
Cc: rjw@rjwysocki.net
Cc: skannan@codeaurora.org
Cc: smuckle@google.com
Cc: srinivas.pandruvada@linux.intel.com
Cc: thara.gopinath@linaro.org
Cc: tkjos@google.com
Cc: valentin.schneider@arm.com
Cc: vincent.guittot@linaro.org
Cc: viresh.kumar@linaro.org
Link: https://lkml.kernel.org/r/20181203095628.11858-2-quentin.perret@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Quentin Perret 2018-12-03 09:56:14 +00:00 committed by Ingo Molnar
parent 9ebc605381
commit 5bd0988be1
2 changed files with 16 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
include/linux/sched/topology.h
View File

@ -201,6 +201,14 @@ extern void set_sched_topology(struct sched_domain_topology_level *tl);
# define SD_INIT_NAME(type)
#endif
#ifndef arch_scale_cpu_capacity
static __always_inline
unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
{
return SCHED_CAPACITY_SCALE;
}
#endif
#else /* CONFIG_SMP */
struct sched_domain_attr;
@ -216,6 +224,14 @@ static inline bool cpus_share_cache(int this_cpu, int that_cpu)
return true;
}
#ifndef arch_scale_cpu_capacity
static __always_inline
unsigned long arch_scale_cpu_capacity(void __always_unused *sd, int cpu)
{
return SCHED_CAPACITY_SCALE;
}
#endif
#endif /* !CONFIG_SMP */
static inline int task_node(const struct task_struct *p)

18
kernel/sched/sched.h
View File

@ -1859,24 +1859,6 @@ unsigned long arch_scale_freq_capacity(int cpu)
}
#endif
#ifdef CONFIG_SMP
#ifndef arch_scale_cpu_capacity
static __always_inline
unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
{
return SCHED_CAPACITY_SCALE;
}
#endif
#else
#ifndef arch_scale_cpu_capacity
static __always_inline
unsigned long arch_scale_cpu_capacity(void __always_unused *sd, int cpu)
{
return SCHED_CAPACITY_SCALE;
}
#endif
#endif
#ifdef CONFIG_SMP
#ifdef CONFIG_PREEMPT