Commit 5d34a997 authored by Jordan Justen's avatar Jordan Justen Committed by Nanley Chery
Browse files

intel: Update alignment restrictions for HiZ surfaces.



v2 (Nanley):
* Maintain a chronological ordering for HiZ alignments. Suggested by
  Ken.
Co-authored-by: Nanley Chery's avatarNanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Kenneth Graunke's avatarKenneth Graunke <kenneth@whitecape.org>
parent 6cd9731d
......@@ -656,11 +656,17 @@ isl_choose_image_alignment_el(const struct isl_device *dev,
if (ISL_DEV_GEN(dev) == 6) {
/* HiZ surfaces on Sandy Bridge are packed tightly. */
*image_align_el = isl_extent3d(1, 1, 1);
} else {
} else if (ISL_DEV_GEN(dev) < 12) {
/* On gen7+, HiZ surfaces are always aligned to 16x8 pixels in the
* primary surface which works out to 2x2 HiZ elments.
*/
*image_align_el = isl_extent3d(2, 2, 1);
} else {
/* On gen12+, HiZ surfaces are always aligned to 16x16 pixels in the
* primary surface which works out to 2x4 HiZ elments.
* TODO: Verify
*/
*image_align_el = isl_extent3d(2, 4, 1);
}
return;
}
......
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