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drm/i915/overlay: Refactor do_wait_request() 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2010-08-12 11:55:08 +01:00
parent 9f7c3f442b
commit b6c028e004
1 changed files with 38 additions and 81 deletions
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119
drivers/gpu/drm/i915/intel_overlay.c
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@ -241,17 +241,39 @@ static void intel_overlay_unmap_regs(struct intel_overlay *overlay)
return;
}
static int intel_overlay_do_wait_request(struct intel_overlay *overlay,
bool interruptible,
int stage)
{
struct drm_device *dev = overlay->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
overlay->last_flip_req =
i915_add_request(dev, NULL, &dev_priv->render_ring);
if (overlay->last_flip_req == 0)
return -ENOMEM;
overlay->hw_wedged = stage;
ret = i915_do_wait_request(dev,
overlay->last_flip_req, true,
&dev_priv->render_ring);
if (ret)
return ret;
overlay->hw_wedged = 0;
overlay->last_flip_req = 0;
return 0;
}
/* overlay needs to be disable in OCMD reg */
static int intel_overlay_on(struct intel_overlay *overlay)
{
struct drm_device *dev = overlay->dev;
int ret;
drm_i915_private_t *dev_priv = dev->dev_private;
BUG_ON(overlay->active);
overlay->active = 1;
overlay->hw_wedged = NEEDS_WAIT_FOR_FLIP;
BEGIN_LP_RING(4);
OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_ON);
@ -260,20 +282,8 @@ static int intel_overlay_on(struct intel_overlay *overlay)
OUT_RING(MI_NOOP);
ADVANCE_LP_RING();
overlay->last_flip_req =
i915_add_request(dev, NULL, &dev_priv->render_ring);
if (overlay->last_flip_req == 0)
return -ENOMEM;
ret = i915_do_wait_request(dev,
overlay->last_flip_req, true,
&dev_priv->render_ring);
if (ret != 0)
return ret;
overlay->hw_wedged = 0;
overlay->last_flip_req = 0;
return 0;
return intel_overlay_do_wait_request(overlay, true,
NEEDS_WAIT_FOR_FLIP);
}
/* overlay needs to be enabled in OCMD reg */
@ -326,27 +336,12 @@ static int intel_overlay_wait_flip(struct intel_overlay *overlay)
}
/* synchronous slowpath */
overlay->hw_wedged = RELEASE_OLD_VID;
BEGIN_LP_RING(2);
OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
OUT_RING(MI_NOOP);
ADVANCE_LP_RING();
overlay->last_flip_req =
i915_add_request(dev, NULL, &dev_priv->render_ring);
if (overlay->last_flip_req == 0)
return -ENOMEM;
ret = i915_do_wait_request(dev,
overlay->last_flip_req, true,
&dev_priv->render_ring);
if (ret != 0)
return ret;
overlay->hw_wedged = 0;
overlay->last_flip_req = 0;
return 0;
return intel_overlay_do_wait_request(overlay, true, RELEASE_OLD_VID);
}
/* overlay needs to be disabled in OCMD reg */
@ -354,7 +349,6 @@ static int intel_overlay_off(struct intel_overlay *overlay)
{
u32 flip_addr = overlay->flip_addr;
struct drm_device *dev = overlay->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
BUG_ON(!overlay->active);
@ -366,8 +360,6 @@ static int intel_overlay_off(struct intel_overlay *overlay)
flip_addr |= OFC_UPDATE;
/* wait for overlay to go idle */
overlay->hw_wedged = SWITCH_OFF_STAGE_1;
BEGIN_LP_RING(4);
OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
OUT_RING(flip_addr);
@ -375,20 +367,12 @@ static int intel_overlay_off(struct intel_overlay *overlay)
OUT_RING(MI_NOOP);
ADVANCE_LP_RING();
overlay->last_flip_req =
i915_add_request(dev, NULL, &dev_priv->render_ring);
if (overlay->last_flip_req == 0)
return -ENOMEM;
ret = i915_do_wait_request(dev,
overlay->last_flip_req, true,
&dev_priv->render_ring);
if (ret != 0)
ret = intel_overlay_do_wait_request(overlay, true,
SWITCH_OFF_STAGE_1);
if (ret)
return ret;
/* turn overlay off */
overlay->hw_wedged = SWITCH_OFF_STAGE_2;
BEGIN_LP_RING(4);
OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
OUT_RING(flip_addr);
@ -396,20 +380,8 @@ static int intel_overlay_off(struct intel_overlay *overlay)
OUT_RING(MI_NOOP);
ADVANCE_LP_RING();
overlay->last_flip_req =
i915_add_request(dev, NULL, &dev_priv->render_ring);
if (overlay->last_flip_req == 0)
return -ENOMEM;
ret = i915_do_wait_request(dev,
overlay->last_flip_req, true,
&dev_priv->render_ring);
if (ret != 0)
return ret;
overlay->hw_wedged = 0;
overlay->last_flip_req = 0;
return ret;
return intel_overlay_do_wait_request(overlay, true,
SWITCH_OFF_STAGE_2);
}
static void intel_overlay_off_tail(struct intel_overlay *overlay)
@ -443,16 +415,9 @@ int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay,
if (overlay->hw_wedged == HW_WEDGED)
return -EIO;
if (overlay->last_flip_req == 0) {
overlay->last_flip_req =
i915_add_request(dev, NULL, &dev_priv->render_ring);
if (overlay->last_flip_req == 0)
return -ENOMEM;
}
ret = i915_do_wait_request(dev, overlay->last_flip_req,
interruptible, &dev_priv->render_ring);
if (ret != 0)
if (ret)
return ret;
switch (overlay->hw_wedged) {
@ -462,12 +427,11 @@ int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay,
drm_gem_object_unreference(obj);
overlay->old_vid_bo = NULL;
break;
case SWITCH_OFF_STAGE_1:
flip_addr = overlay->flip_addr;
flip_addr |= OFC_UPDATE;
overlay->hw_wedged = SWITCH_OFF_STAGE_2;
BEGIN_LP_RING(4);
OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
OUT_RING(flip_addr);
@ -475,16 +439,9 @@ int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay,
OUT_RING(MI_NOOP);
ADVANCE_LP_RING();
overlay->last_flip_req =
i915_add_request(dev, NULL,
&dev_priv->render_ring);
if (overlay->last_flip_req == 0)
return -ENOMEM;
ret = i915_do_wait_request(dev, overlay->last_flip_req,
interruptible,
&dev_priv->render_ring);
if (ret != 0)
ret = intel_overlay_do_wait_request(overlay, interruptible,
SWITCH_OFF_STAGE_2);
if (ret)
return ret;
case SWITCH_OFF_STAGE_2: