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drm/i915: Unpin the flip target if we fail to queue the flip 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2012-04-17 19:35:53 +01:00 committed by Daniel Vetter
parent a1e969e033
commit 83d4092b03
1 changed files with 35 additions and 15 deletions
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50
drivers/gpu/drm/i915/intel_display.c
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@ -7658,14 +7658,14 @@ static int intel_gen2_queue_flip(struct drm_device *dev,
ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
if (ret)
goto out;
goto err;
/* Offset into the new buffer for cases of shared fbs between CRTCs */
offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8;
ret = BEGIN_LP_RING(6);
if (ret)
goto out;
goto err_unpin;
/* Can't queue multiple flips, so wait for the previous
* one to finish before executing the next.
@ -7682,7 +7682,11 @@ static int intel_gen2_queue_flip(struct drm_device *dev,
OUT_RING(obj->gtt_offset + offset);
OUT_RING(0); /* aux display base address, unused */
ADVANCE_LP_RING();
out:
return 0;
err_unpin:
intel_unpin_fb_obj(obj);
err:
return ret;
}
@ -7699,14 +7703,14 @@ static int intel_gen3_queue_flip(struct drm_device *dev,
ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
if (ret)
goto out;
goto err;
/* Offset into the new buffer for cases of shared fbs between CRTCs */
offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8;
ret = BEGIN_LP_RING(6);
if (ret)
goto out;
goto err_unpin;
if (intel_crtc->plane)
flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
@ -7721,7 +7725,11 @@ static int intel_gen3_queue_flip(struct drm_device *dev,
OUT_RING(MI_NOOP);
ADVANCE_LP_RING();
out:
return 0;
err_unpin:
intel_unpin_fb_obj(obj);
err:
return ret;
}
@ -7737,11 +7745,11 @@ static int intel_gen4_queue_flip(struct drm_device *dev,
ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
if (ret)
goto out;
goto err;
ret = BEGIN_LP_RING(4);
if (ret)
goto out;
goto err_unpin;
/* i965+ uses the linear or tiled offsets from the
* Display Registers (which do not change across a page-flip)
@ -7760,7 +7768,11 @@ static int intel_gen4_queue_flip(struct drm_device *dev,
pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
OUT_RING(pf | pipesrc);
ADVANCE_LP_RING();
out:
return 0;
err_unpin:
intel_unpin_fb_obj(obj);
err:
return ret;
}
@ -7776,11 +7788,11 @@ static int intel_gen6_queue_flip(struct drm_device *dev,
ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
if (ret)
goto out;
goto err;
ret = BEGIN_LP_RING(4);
if (ret)
goto out;
goto err_unpin;
OUT_RING(MI_DISPLAY_FLIP |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
@ -7791,7 +7803,11 @@ static int intel_gen6_queue_flip(struct drm_device *dev,
pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
OUT_RING(pf | pipesrc);
ADVANCE_LP_RING();
out:
return 0;
err_unpin:
intel_unpin_fb_obj(obj);
err:
return ret;
}
@ -7813,18 +7829,22 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
if (ret)
goto out;
goto err;
ret = intel_ring_begin(ring, 4);
if (ret)
goto out;
goto err_unpin;
intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19));
intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
intel_ring_emit(ring, (obj->gtt_offset));
intel_ring_emit(ring, (MI_NOOP));
intel_ring_advance(ring);
out:
return 0;
err_unpin:
intel_unpin_fb_obj(obj);
err:
return ret;
}