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-rw-r--r--src/intel/isl/isl.c4
-rw-r--r--src/intel/isl/isl_format.c11
2 files changed, 12 insertions, 3 deletions
diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c
index 26ee4c4452e..a53f46feb4f 100644
--- a/src/intel/isl/isl.c
+++ b/src/intel/isl/isl.c
@@ -594,7 +594,6 @@ isl_calc_phys_level0_extent_sa(const struct isl_device *dev,
assert(info->depth == 1);
assert(info->levels == 1);
assert(isl_format_supports_multisampling(dev->info, info->format));
- assert(fmtl->bw == 1 && fmtl->bh == 1);
*phys_level0_sa = (struct isl_extent4d) {
.w = info->width,
@@ -606,6 +605,9 @@ isl_calc_phys_level0_extent_sa(const struct isl_device *dev,
isl_msaa_interleaved_scale_px_to_sa(info->samples,
&phys_level0_sa->w,
&phys_level0_sa->h);
+
+ phys_level0_sa->w = isl_align(phys_level0_sa->w, fmtl->bw);
+ phys_level0_sa->h = isl_align(phys_level0_sa->h, fmtl->bh);
break;
}
break;
diff --git a/src/intel/isl/isl_format.c b/src/intel/isl/isl_format.c
index 81c01e0b8ca..daf2d813436 100644
--- a/src/intel/isl/isl_format.c
+++ b/src/intel/isl/isl_format.c
@@ -444,9 +444,16 @@ isl_format_supports_multisampling(const struct gen_device_info *devinfo,
* - any compressed texture format (BC*)
* - any YCRCB* format
*
- * The restriction on the format's size is removed on Broadwell.
+ * The restriction on the format's size is removed on Broadwell. Also,
+ * there is an exception for HiZ which we treat as a compressed format and
+ * is allowed to be multisampled on Broadwell and earlier.
*/
- if (devinfo->gen < 8 && isl_format_get_layout(format)->bpb > 64) {
+ if (format == ISL_FORMAT_HIZ) {
+ /* On SKL+, HiZ is always single-sampled even when the primary surface
+ * is multisampled. See also isl_surf_get_hiz_surf().
+ */
+ return devinfo->gen <= 8;
+ } else if (devinfo->gen < 8 && isl_format_get_layout(format)->bpb > 64) {
return false;
} else if (isl_format_is_compressed(format)) {
return false;