From: Marek Olšák <marek.olsak@amd.com>
Date: Fri, 8 May 2020 20:12:56 +0000 (-0400)
Subject: ac/surface: fix broken pitch override on gfx8
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1a59590e5d686a11687151d57f2fd43d366d6720;p=mesa.git

ac/surface: fix broken pitch override on gfx8

Fixes: 441eaef6a9e - amd: unify code for overriding offset and stride for imported buffers

Closes: #2920

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4968>
---

diff --git a/src/amd/common/ac_surface.c b/src/amd/common/ac_surface.c
index 86519f216e1..98f1276f425 100644
--- a/src/amd/common/ac_surface.c
+++ b/src/amd/common/ac_surface.c
@@ -2207,9 +2207,11 @@ void ac_surface_override_offset_stride(const struct radeon_info *info,
       if (surf->u.gfx9.stencil_offset)
          surf->u.gfx9.stencil_offset += offset;
    } else {
-      surf->u.legacy.level[0].nblk_x = pitch;
-      surf->u.legacy.level[0].slice_size_dw =
-            ((uint64_t)pitch * surf->u.legacy.level[0].nblk_y * surf->bpe) / 4;
+      if (pitch) {
+         surf->u.legacy.level[0].nblk_x = pitch;
+         surf->u.legacy.level[0].slice_size_dw =
+               ((uint64_t)pitch * surf->u.legacy.level[0].nblk_y * surf->bpe) / 4;
+      }
 
       if (offset) {
          for (unsigned i = 0; i < ARRAY_SIZE(surf->u.legacy.level); ++i)