diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index b8d409f5ead..2e74ccce447 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1069,6 +1069,26 @@ static void assert_panel_unlocked(struct drm_i915_private *dev_priv, pipe_name(pipe)); } +static void assert_cursor(struct drm_i915_private *dev_priv, + enum pipe pipe, bool state) +{ + struct drm_device *dev = dev_priv->dev; + bool cur_state; + + if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) + cur_state = I915_READ(CURCNTR_IVB(pipe)) & CURSOR_MODE; + else if (IS_845G(dev) || IS_I865G(dev)) + cur_state = I915_READ(_CURACNTR) & CURSOR_ENABLE; + else + cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE; + + WARN(cur_state != state, + "cursor on pipe %c assertion failure (expected %s, current %s)\n", + pipe_name(pipe), state_string(state), state_string(cur_state)); +} +#define assert_cursor_enabled(d, p) assert_cursor(d, p, true) +#define assert_cursor_disabled(d, p) assert_cursor(d, p, false) + void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state) { @@ -1670,6 +1690,7 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, u32 val; assert_planes_disabled(dev_priv, pipe); + assert_cursor_disabled(dev_priv, pipe); assert_sprites_disabled(dev_priv, pipe); if (HAS_PCH_LPT(dev_priv->dev)) @@ -1731,6 +1752,7 @@ static void intel_disable_pipe(struct drm_i915_private *dev_priv, * or we might hang the display. */ assert_planes_disabled(dev_priv, pipe); + assert_cursor_disabled(dev_priv, pipe); assert_sprites_disabled(dev_priv, pipe); /* Don't disable pipe A or pipe A PLLs if needed */ @@ -3867,6 +3889,7 @@ static void intel_crtc_disable(struct drm_crtc *crtc) dev_priv->display.off(crtc); assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); + assert_cursor_disabled(dev_priv, to_intel_crtc(crtc)->pipe); assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); if (crtc->fb) { |