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| author |   Marcelo Tosatti <mtosatti@redhat.com> | 2019-07-03 20:51:26 -0300 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-30 17:27:37 +0200 |
| commit | 259231a045616c4101d023a8f4dcc8379af265a6 (patch) | |
| tree | 633877050928b1b22ee77920d79b5bc548f29471 /drivers/cpuidle/poll_state.c | |
| parent | add cpuidle-haltpoll driver (diff) | |
| download | linux-dev-259231a045616c4101d023a8f4dcc8379af265a6.tar.xz linux-dev-259231a045616c4101d023a8f4dcc8379af265a6.zip | |
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.c | 11 |
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(); |