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authorMarcelo Tosatti <mtosatti@redhat.com>2019-07-03 20:51:26 -0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-07-30 17:27:37 +0200
commit259231a045616c4101d023a8f4dcc8379af265a6 (patch)
tree633877050928b1b22ee77920d79b5bc548f29471 /drivers/cpuidle/poll_state.c
parentfa86ee90eb1111267de67cb4272b5ce711f18cbb (diff)
downloadlinux-259231a045616c4101d023a8f4dcc8379af265a6.tar.bz2
cpuidle: add poll_limit_ns to cpuidle_device structure
Add a poll_limit_ns variable to cpuidle_device structure. Calculate and configure it in the new cpuidle_poll_time function, in case its zero. Individual governors are allowed to override this value. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpuidle/poll_state.c')
-rw-r--r--drivers/cpuidle/poll_state.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/cpuidle/poll_state.c b/drivers/cpuidle/poll_state.c
index 02b9315a9e96..c8fa5f41dfc4 100644
--- a/drivers/cpuidle/poll_state.c
+++ b/drivers/cpuidle/poll_state.c
@@ -20,16 +20,9 @@ static int __cpuidle poll_idle(struct cpuidle_device *dev,
local_irq_enable();
if (!current_set_polling_and_test()) {
unsigned int loop_count = 0;
- u64 limit = TICK_NSEC;
- int i;
+ u64 limit;
- for (i = 1; i < drv->state_count; i++) {
- if (drv->states[i].disabled || dev->states_usage[i].disable)
- continue;
-
- limit = (u64)drv->states[i].target_residency * NSEC_PER_USEC;
- break;
- }
+ limit = cpuidle_poll_time(drv, dev);
while (!need_resched()) {
cpu_relax();