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drm/i915: Catch abuse of I915_EXEC_GEN7_SOL_RESET

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Currently we catch it, but silently succeed. Our userspace is
better than this.

v2: Add DRM_DEBUG (Chris)

Testcase: igt/gem_exec_params/sol-reset-*
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2014-04-24 08:09:09 +02:00
parent 48e48a0b8c
commit 9d662da8b6
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/i915/i915_gem_execbuffer.c
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@ -981,8 +981,10 @@ i915_reset_gen7_sol_offsets(struct drm_device *dev,
struct drm_i915_private *dev_priv = dev->dev_private;
int ret, i;
if (!IS_GEN7(dev) || ring != &dev_priv->ring[RCS])
return 0;
if (!IS_GEN7(dev) || ring != &dev_priv->ring[RCS]) {
DRM_DEBUG("sol reset is gen7/rcs only\n");
return -EINVAL;
}
ret = intel_ring_begin(ring, 4 * 3);
if (ret)