Module: Mesa
Branch: master
Commit: 6b3ee86989edb854094d3aba122b40498fca94d8
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=6b3ee86989edb854094d3aba122b40498fca94d8

Author: Marek Olšák <[email protected]>
Date:   Tue Jul 30 16:30:04 2019 -0400

radeonsi: disable SDMA image copies on dGPUs to fix corruption in games

Cc: 19.1 19.2 <[email protected]>
Reviewed-by: Pierre-Eric Pelloux-Prayer <[email protected]>

---

 src/gallium/drivers/radeonsi/cik_sdma.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/cik_sdma.c 
b/src/gallium/drivers/radeonsi/cik_sdma.c
index ba62295318f..47d8afc05da 100644
--- a/src/gallium/drivers/radeonsi/cik_sdma.c
+++ b/src/gallium/drivers/radeonsi/cik_sdma.c
@@ -500,7 +500,15 @@ static void cik_sdma_copy(struct pipe_context *ctx,
                return;
        }
 
-       if ((sctx->chip_class == GFX7 || sctx->chip_class == GFX8) &&
+       /* SDMA causes corruption. See:
+        *   https://bugs.freedesktop.org/show_bug.cgi?id=110575
+        *   https://bugs.freedesktop.org/show_bug.cgi?id=110635
+        *
+        * Keep SDMA enabled on APUs.
+        */
+       if ((sctx->screen->debug_flags & DBG(FORCE_DMA) ||
+            !sctx->screen->info.has_dedicated_vram) &&
+           (sctx->chip_class == GFX7 || sctx->chip_class == GFX8) &&
            cik_sdma_copy_texture(sctx, dst, dst_level, dstx, dsty, dstz,
                                  src, src_level, src_box))
                return;

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