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drm/i915: Check whether the ring is initialised prior to dispatch 

Rather than use the magic feature tests HAS_BLT/HAS_BSD just check
whether the ring we are about to dispatch the execbuffer on is
initialised.

v2: Use intel_ring_initialized()

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2012-05-11 14:29:31 +01:00 committed by Daniel Vetter
parent b4519513e8
commit a15817cf16
1 changed files with 5 additions and 8 deletions
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13
drivers/gpu/drm/i915/i915_gem_execbuffer.c
View File

@ -1064,17 +1064,9 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
ring = &dev_priv->ring[RCS];
break;
case I915_EXEC_BSD:
if (!HAS_BSD(dev)) {
DRM_DEBUG("execbuf with invalid ring (BSD)\n");
return -EINVAL;
}
ring = &dev_priv->ring[VCS];
break;
case I915_EXEC_BLT:
if (!HAS_BLT(dev)) {
DRM_DEBUG("execbuf with invalid ring (BLT)\n");
return -EINVAL;
}
ring = &dev_priv->ring[BCS];
break;
default:
@ -1082,6 +1074,11 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
(int)(args->flags & I915_EXEC_RING_MASK));
return -EINVAL;
}
if (!intel_ring_initialized(ring)) {
DRM_DEBUG("execbuf with invalid ring: %d\n",
(int)(args->flags & I915_EXEC_RING_MASK));
return -EINVAL;
}
mode = args->flags & I915_EXEC_CONSTANTS_MASK;
mask = I915_EXEC_CONSTANTS_MASK;