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isl/state: Add an assertion for IVB multisample array textures

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Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
This commit is contained in:
Jason Ekstrand 2016-06-28 14:38:54 -07:00
parent 3c75b315e1
commit 6155d4ef56
1 changed files with 13 additions and 0 deletions
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13
src/intel/isl/isl_surface_state.c
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@ -239,6 +239,19 @@ isl_genX(surf_fill_state_s)(const struct isl_device *dev, void *state,
switch (s.SurfaceType) {
case SURFTYPE_1D:
case SURFTYPE_2D:
/* From the Ivy Bridge PRM >> RENDER_SURFACE_STATE::MinimumArrayElement:
*
* "If Number of Multisamples is not MULTISAMPLECOUNT_1, this field
* must be set to zero if this surface is used with sampling engine
* messages."
*
* This restriction appears to exist only on Ivy Bridge.
*/
if (GEN_GEN == 7 && !GEN_IS_HASWELL && !ISL_DEV_IS_BAYTRAIL(dev) &&
(info->view->usage & ISL_SURF_USAGE_TEXTURE_BIT) &&
info->surf->samples > 1)
assert(info->view->base_array_layer == 0);
s.MinimumArrayElement = info->view->base_array_layer;
/* From the Broadwell PRM >> RENDER_SURFACE_STATE::Depth: