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path: root/drivers/gpu/drm/radeon/radeon_pm.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_pm.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_pm.c42
1 files changed, 35 insertions, 7 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 63f679a..3fa6984 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -333,6 +333,7 @@ static ssize_t radeon_get_pm_profile(struct device *dev,
return snprintf(buf, PAGE_SIZE, "%s\n",
(cp == PM_PROFILE_AUTO) ? "auto" :
(cp == PM_PROFILE_LOW) ? "low" :
+ (cp == PM_PROFILE_MID) ? "mid" :
(cp == PM_PROFILE_HIGH) ? "high" : "default");
}
@@ -397,13 +398,20 @@ static ssize_t radeon_set_pm_method(struct device *dev,
rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
mutex_unlock(&rdev->pm.mutex);
} else if (strncmp("profile", buf, strlen("profile")) == 0) {
+ bool flush_wq = false;
+
mutex_lock(&rdev->pm.mutex);
- rdev->pm.pm_method = PM_METHOD_PROFILE;
+ if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
+ cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+ flush_wq = true;
+ }
/* disable dynpm */
rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
- cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+ rdev->pm.pm_method = PM_METHOD_PROFILE;
mutex_unlock(&rdev->pm.mutex);
+ if (flush_wq)
+ flush_workqueue(rdev->wq);
} else {
DRM_ERROR("invalid power method!\n");
goto fail;
@@ -418,9 +426,18 @@ static DEVICE_ATTR(power_method, S_IRUGO | S_IWUSR, radeon_get_pm_method, radeon
void radeon_pm_suspend(struct radeon_device *rdev)
{
+ bool flush_wq = false;
+
mutex_lock(&rdev->pm.mutex);
- cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+ if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
+ cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+ if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE)
+ rdev->pm.dynpm_state = DYNPM_STATE_SUSPENDED;
+ flush_wq = true;
+ }
mutex_unlock(&rdev->pm.mutex);
+ if (flush_wq)
+ flush_workqueue(rdev->wq);
}
void radeon_pm_resume(struct radeon_device *rdev)
@@ -432,6 +449,12 @@ void radeon_pm_resume(struct radeon_device *rdev)
rdev->pm.current_sclk = rdev->clock.default_sclk;
rdev->pm.current_mclk = rdev->clock.default_mclk;
rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
+ if (rdev->pm.pm_method == PM_METHOD_DYNPM
+ && rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) {
+ rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
+ queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
+ msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
+ }
mutex_unlock(&rdev->pm.mutex);
radeon_pm_compute_clocks(rdev);
}
@@ -486,6 +509,8 @@ int radeon_pm_init(struct radeon_device *rdev)
void radeon_pm_fini(struct radeon_device *rdev)
{
if (rdev->pm.num_power_states > 1) {
+ bool flush_wq = false;
+
mutex_lock(&rdev->pm.mutex);
if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
rdev->pm.profile = PM_PROFILE_DEFAULT;
@@ -493,13 +518,16 @@ void radeon_pm_fini(struct radeon_device *rdev)
radeon_pm_set_clocks(rdev);
} else if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
/* cancel work */
- cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
+ cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+ flush_wq = true;
/* reset default clocks */
rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
radeon_pm_set_clocks(rdev);
}
mutex_unlock(&rdev->pm.mutex);
+ if (flush_wq)
+ flush_workqueue(rdev->wq);
device_remove_file(rdev->dev, &dev_attr_power_profile);
device_remove_file(rdev->dev, &dev_attr_power_method);
@@ -720,12 +748,12 @@ static void radeon_dynpm_idle_work_handler(struct work_struct *work)
radeon_pm_get_dynpm_state(rdev);
radeon_pm_set_clocks(rdev);
}
+
+ queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
+ msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
}
mutex_unlock(&rdev->pm.mutex);
ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
-
- queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
- msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
}
/*
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