diff options
| author | Vikram Mulukutla <markivx@codeaurora.org> | 2014-10-13 21:29:33 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:32:11 +0200 |
| commit | 662287558f37ed46e0612a34d5e58b89f6af3a48 (patch) | |
| tree | caa1c648885d6e50b12eff95be9969664d51005f /include | |
| parent | 248d7100ffa9197cd7de996a31cb2edc637ca05f (diff) | |
idle: Implement a per-cpu idle-polling mode
cpu_idle_poll_ctrl provides a way of switching the
idle thread to use cpu_idle_poll instead of the arch
specific lower power mode callbacks (arch_cpu_idle).
cpu_idle_poll spins on a flag in a tight loop with
interrupts enabled.
In some cases it may be useful to enter the tight loop
polling mode only on a particular CPU. This allows
other CPUs to continue using the arch specific low
power mode callbacks. Provide an API that allows this.
Change-Id: I7c47c3590eb63345996a1c780faa79dbd1d9fdb4
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/cpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 963eaa1ca..41ed83945 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -279,6 +279,7 @@ void cpu_startup_entry(enum cpuhp_state state); void cpu_idle(void); void cpu_idle_poll_ctrl(bool enable); +void per_cpu_idle_poll_ctrl(int cpu, bool enable); void arch_cpu_idle(void); void arch_cpu_idle_prepare(void); |