radeon: Enable memory reclockong on r600

With luck, dynamic memory reclocking on r600 should be stable with
the previous patches. Enable it.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 4691309940646723c1f8ff37a423866fe0b43b30..1696cc277d8b8e020886639704acda308ced35c0 100644 (file)
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -271,26 +271,27 @@ void r600_set_power_state(struct radeon_device *rdev, bool static_switch)
                radeon_pm_misc(rdev);
 
                if (static_switch) {
-                       radeon_pm_prepare(rdev);
+
                        /* set engine clock */
                        if (sclk != rdev->pm.current_sclk) {
                                radeon_set_engine_clock(rdev, sclk);
                                rdev->pm.current_sclk = sclk;
                                DRM_INFO("Setting: e: %d\n", sclk);
                        }
-#if 0
+
                        /* set memory clock */
                        if (rdev->asic->set_memory_clock && (mclk != rdev->pm.current_mclk)) {
+                               radeon_pm_prepare(rdev);
                                radeon_set_memory_clock(rdev, mclk);
+                               radeon_pm_finish(rdev);
                                rdev->pm.current_mclk = mclk;
                                DRM_INFO("Setting: m: %d\n", mclk);
                        }
-#endif
-                       radeon_pm_finish(rdev);
+
                } else {
-                       /* set engine clock */
+                       radeon_sync_with_vblank(rdev);
+
                        if (sclk != rdev->pm.current_sclk) {
-                               radeon_sync_with_vblank(rdev);
                                radeon_pm_debug_check_in_vbl(rdev, false);
                                radeon_set_engine_clock(rdev, sclk);
                                radeon_pm_debug_check_in_vbl(rdev, true);
@@ -298,10 +299,8 @@ void r600_set_power_state(struct radeon_device *rdev, bool static_switch)
                                DRM_INFO("Setting: e: %d\n", sclk);
                        }
 
-#if 0
                        /* set memory clock */
                        if (rdev->asic->set_memory_clock && (mclk != rdev->pm.current_mclk)) {
-                               radeon_sync_with_vblank(rdev);
                                radeon_pm_debug_check_in_vbl(rdev, false);
                                radeon_pm_prepare(rdev);
                                radeon_set_memory_clock(rdev, mclk);
@@ -310,7 +309,6 @@ void r600_set_power_state(struct radeon_device *rdev, bool static_switch)
                                rdev->pm.current_mclk = mclk;
                                DRM_INFO("Setting: m: %d\n", mclk);
                        }
-#endif
                }
 
                rdev->pm.current_power_state_index = rdev->pm.requested_power_state_index;