@@ -3851,7 +3851,16 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
* Disable clock gating on th GCFG unit to prevent a delay
* in the reporting of vblank events.
*/
- I915_WRITE(VLV_GUNIT_CLOCK_GATE, GCFG_DIS);
+ I915_WRITE(VLV_GUNIT_CLOCK_GATE, 0xffffffff);
+
+ /* Need testing & additional review on newer hw */
+ I915_WRITE(0x9400, 0xffffffff);
+ I915_WRITE(0x9404, 0xffffffff);
+ I915_WRITE(0x9408, 0xffffffff);
+ I915_WRITE(0x940c, 0xffffffff);
+ I915_WRITE(0x9410, 0xffffffff);
+ I915_WRITE(0x9414, 0xffffffff);
+ I915_WRITE(0x9418, 0xffffffff);
}
static void g4x_init_clock_gating(struct drm_device *dev)
Disable a swath of clock gating bits pending further testing and measurement. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> --- drivers/gpu/drm/i915/intel_pm.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)