Merge branch 'perf/urgent' into perf/core

Conflicts:
	arch/x86/kernel/cpu/perf_event.c

Merge reason: Resolve the conflict, pick up fixes

Signed-off-by: Ingo Molnar <mingo@elte.hu>

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 d4d1c39a0e99..a4b57493aa78 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);
 }