aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/cpuidle/cpuidle.c
diff options
context:
space:
mode:
authorDaniel Lezcano <daniel.lezcano@linaro.org>2014-03-03 02:48:51 -0500
committerIngo Molnar <mingo@kernel.org>2014-03-11 06:52:45 -0400
commit30cdd69e2a266505ca8229c944d361ff350a6959 (patch)
treed92aad45235d3855429050a1acfb08e588704d34 /drivers/cpuidle/cpuidle.c
parent907e30f1bb4a9656d351aa705c1e5931da908701 (diff)
cpuidle/idle: Move the cpuidle_idle_call function to idle.c
The cpuidle_idle_call does nothing more than calling the three individuals function and is no longer used by any arch specific code but only in the cpuidle framework code. We can move this function into the idle task code to ensure better proximity to the scheduler code. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: rjw@rjwysocki.net Cc: preeti@linux.vnet.ibm.com Link: http://lkml.kernel.org/r/1393832934-11625-2-git-send-email-daniel.lezcano@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/cpuidle/cpuidle.c')
-rw-r--r--drivers/cpuidle/cpuidle.c49
1 files changed, 0 insertions, 49 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 1506d69b3f0f..166a7322a2b6 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -173,55 +173,6 @@ void cpuidle_reflect(struct cpuidle_device *dev, int index)
173} 173}
174 174
175/** 175/**
176 * cpuidle_idle_call - the main idle loop
177 *
178 * NOTE: no locks or semaphores should be used here
179 * return non-zero on failure
180 */
181int cpuidle_idle_call(void)
182{
183 struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
184 struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
185 int next_state, entered_state, ret;
186 bool broadcast;
187
188 ret = cpuidle_enabled(drv, dev);
189 if (ret < 0)
190 return ret;
191
192 /* ask the governor for the next state */
193 next_state = cpuidle_select(drv, dev);
194
195 if (need_resched()) {
196 dev->last_residency = 0;
197 /* give the governor an opportunity to reflect on the outcome */
198 cpuidle_reflect(dev, next_state);
199 local_irq_enable();
200 return 0;
201 }
202
203 broadcast = !!(drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP);
204
205 if (broadcast &&
206 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu))
207 return -EBUSY;
208
209 trace_cpu_idle_rcuidle(next_state, dev->cpu);
210
211 entered_state = cpuidle_enter(drv, dev, next_state);
212
213 trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
214
215 if (broadcast)
216 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
217
218 /* give the governor an opportunity to reflect on the outcome */
219 cpuidle_reflect(dev, entered_state);
220
221 return 0;
222}
223
224/**
225 * cpuidle_install_idle_handler - installs the cpuidle idle loop handler 176 * cpuidle_install_idle_handler - installs the cpuidle idle loop handler
226 */ 177 */
227void cpuidle_install_idle_handler(void) 178void cpuidle_install_idle_handler(void)