Commit 93ce0ba6 authored by Jani Nikula's avatar Jani Nikula Committed by Daniel Vetter

drm/i915: add asserts for cursor disabled

The cursor is supposed to be disabled during crtc mode set (disabled by
ctrc disable). Assert this is the case.

v2: move cursor disabled assert next to plane asserts (Ville)
Suggested-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 33618ea5
...@@ -1069,6 +1069,26 @@ static void assert_panel_unlocked(struct drm_i915_private *dev_priv, ...@@ -1069,6 +1069,26 @@ static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
pipe_name(pipe)); 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, void assert_pipe(struct drm_i915_private *dev_priv,
enum pipe pipe, bool state) enum pipe pipe, bool state)
{ {
...@@ -1670,6 +1690,7 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, ...@@ -1670,6 +1690,7 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
u32 val; u32 val;
assert_planes_disabled(dev_priv, pipe); assert_planes_disabled(dev_priv, pipe);
assert_cursor_disabled(dev_priv, pipe);
assert_sprites_disabled(dev_priv, pipe); assert_sprites_disabled(dev_priv, pipe);
if (HAS_PCH_LPT(dev_priv->dev)) if (HAS_PCH_LPT(dev_priv->dev))
...@@ -1731,6 +1752,7 @@ static void intel_disable_pipe(struct drm_i915_private *dev_priv, ...@@ -1731,6 +1752,7 @@ static void intel_disable_pipe(struct drm_i915_private *dev_priv,
* or we might hang the display. * or we might hang the display.
*/ */
assert_planes_disabled(dev_priv, pipe); assert_planes_disabled(dev_priv, pipe);
assert_cursor_disabled(dev_priv, pipe);
assert_sprites_disabled(dev_priv, pipe); assert_sprites_disabled(dev_priv, pipe);
/* Don't disable pipe A or pipe A PLLs if needed */ /* Don't disable pipe A or pipe A PLLs if needed */
...@@ -3867,6 +3889,7 @@ static void intel_crtc_disable(struct drm_crtc *crtc) ...@@ -3867,6 +3889,7 @@ static void intel_crtc_disable(struct drm_crtc *crtc)
dev_priv->display.off(crtc); dev_priv->display.off(crtc);
assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); 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); assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
if (crtc->fb) { if (crtc->fb) {
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment