diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 7ae358211216..82f74f36d551 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4069,12 +4069,10 @@ int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv) static void vlv_force_wake_get(struct drm_i915_private *dev_priv) { - /* Already awake? */ - if ((I915_READ(0x130094) & 0xa1) == 0xa1) - return; + if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_ACK_VLV) & 1) == 0, 500)) + DRM_ERROR("Force wake wait timed out\n"); - I915_WRITE_NOTRACE(FORCEWAKE_VLV, 0xffffffff); - POSTING_READ(FORCEWAKE_VLV); + I915_WRITE_NOTRACE(FORCEWAKE_VLV, _MASKED_BIT_ENABLE(1)); if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_ACK_VLV) & 1), 500)) DRM_ERROR("Force wake wait timed out\n"); @@ -4084,9 +4082,9 @@ static void vlv_force_wake_get(struct drm_i915_private *dev_priv) static void vlv_force_wake_put(struct drm_i915_private *dev_priv) { - I915_WRITE_NOTRACE(FORCEWAKE_VLV, 0xffff0000); - /* FIXME: confirm VLV behavior with Punit folks */ - POSTING_READ(FORCEWAKE_VLV); + I915_WRITE_NOTRACE(FORCEWAKE_VLV, _MASKED_BIT_DISABLE(1)); + /* The below doubles as a POSTING_READ */ + gen6_gt_check_fifodbg(dev_priv); } void intel_gt_init(struct drm_device *dev) |