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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.c46
1 files changed, 37 insertions, 9 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index d4d1c39a0e9..a4b57493aa7 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -28,6 +28,7 @@
#define RADEON_RECLOCK_DELAY_MS 200
#define RADEON_WAIT_VBLANK_TIMEOUT 200
+static bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish);
static void radeon_pm_set_clocks_locked(struct radeon_device *rdev);
static void radeon_pm_set_clocks(struct radeon_device *rdev);
static void radeon_pm_idle_work_handler(struct work_struct *work);
@@ -179,6 +180,16 @@ static void radeon_get_power_state(struct radeon_device *rdev,
rdev->pm.requested_power_state->non_clock_info.pcie_lanes);
}
+static inline void radeon_sync_with_vblank(struct radeon_device *rdev)
+{
+ if (rdev->pm.active_crtcs) {
+ rdev->pm.vblank_sync = false;
+ wait_event_timeout(
+ rdev->irq.vblank_queue, rdev->pm.vblank_sync,
+ msecs_to_jiffies(RADEON_WAIT_VBLANK_TIMEOUT));
+ }
+}
+
static void radeon_set_power_state(struct radeon_device *rdev)
{
/* if *_clock_mode are the same, *_power_state are as well */
@@ -189,11 +200,28 @@ static void radeon_set_power_state(struct radeon_device *rdev)
rdev->pm.requested_clock_mode->sclk,
rdev->pm.requested_clock_mode->mclk,
rdev->pm.requested_power_state->non_clock_info.pcie_lanes);
+
/* set pcie lanes */
+ /* TODO */
+
/* set voltage */
+ /* TODO */
+
/* set engine clock */
+ radeon_sync_with_vblank(rdev);
+ radeon_pm_debug_check_in_vbl(rdev, false);
radeon_set_engine_clock(rdev, rdev->pm.requested_clock_mode->sclk);
+ radeon_pm_debug_check_in_vbl(rdev, true);
+
+#if 0
/* set memory clock */
+ if (rdev->asic->set_memory_clock) {
+ radeon_sync_with_vblank(rdev);
+ radeon_pm_debug_check_in_vbl(rdev, false);
+ radeon_set_memory_clock(rdev, rdev->pm.requested_clock_mode->mclk);
+ radeon_pm_debug_check_in_vbl(rdev, true);
+ }
+#endif
rdev->pm.current_power_state = rdev->pm.requested_power_state;
rdev->pm.current_clock_mode = rdev->pm.requested_clock_mode;
@@ -229,6 +257,12 @@ int radeon_pm_init(struct radeon_device *rdev)
return 0;
}
+void radeon_pm_fini(struct radeon_device *rdev)
+{
+ if (rdev->pm.i2c_bus)
+ radeon_i2c_destroy(rdev->pm.i2c_bus);
+}
+
void radeon_pm_compute_clocks(struct radeon_device *rdev)
{
struct drm_device *ddev = rdev->ddev;
@@ -245,7 +279,8 @@ void radeon_pm_compute_clocks(struct radeon_device *rdev)
list_for_each_entry(connector,
&ddev->mode_config.connector_list, head) {
if (connector->encoder &&
- connector->dpms != DRM_MODE_DPMS_OFF) {
+ connector->encoder->crtc &&
+ connector->dpms != DRM_MODE_DPMS_OFF) {
radeon_crtc = to_radeon_crtc(connector->encoder->crtc);
rdev->pm.active_crtcs |= (1 << radeon_crtc->crtc_id);
++count;
@@ -333,10 +368,7 @@ static void radeon_pm_set_clocks_locked(struct radeon_device *rdev)
break;
}
- /* check if we are in vblank */
- radeon_pm_debug_check_in_vbl(rdev, false);
radeon_set_power_state(rdev);
- radeon_pm_debug_check_in_vbl(rdev, true);
rdev->pm.planned_action = PM_ACTION_NONE;
}
@@ -353,10 +385,7 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
rdev->pm.req_vblank |= (1 << 1);
drm_vblank_get(rdev->ddev, 1);
}
- if (rdev->pm.active_crtcs)
- wait_event_interruptible_timeout(
- rdev->irq.vblank_queue, 0,
- msecs_to_jiffies(RADEON_WAIT_VBLANK_TIMEOUT));
+ radeon_pm_set_clocks_locked(rdev);
if (rdev->pm.req_vblank & (1 << 0)) {
rdev->pm.req_vblank &= ~(1 << 0);
drm_vblank_put(rdev->ddev, 0);
@@ -366,7 +395,6 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
drm_vblank_put(rdev->ddev, 1);
}
- radeon_pm_set_clocks_locked(rdev);
mutex_unlock(&rdev->cp.mutex);
}