commit 2b78cb2e0039f09d9820a1a9166a49f168c9959d
author Marek Olšák <marek.olsak@amd.com> Sat Aug 08 16:39:09 2020 -0400
committer Marge Bot <eric+marge@anholt.net> Wed Aug 12 17:39:09 2020 +0000
tree a1ed4e1339f7cc9572ea2bfe6c95acfe3687d828
parent 61042b1bdb199f98dd34085ed29a8c492ed9b2a3

radeonsi: disable NGG culling on gfx10.3 because of hangs

Fixes: a23802bcb9a - ac,radeonsi: start adding support for gfx10.3

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6282>

src/gallium/drivers/radeonsi/si_pipe.c

diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index c323f33..2bd96ea 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -1152,6 +1152,11 @@
       driQueryOptionb(config->options, "radeonsi_commutative_blend_add") ||
       driQueryOptionb(config->options, "allow_draw_out_of_order");
 
+   /* TODO: Find out why NGG culling hangs on gfx10.3 */
+   if (sscreen->info.chip_class == GFX10_3 &&
+       !(sscreen->debug_flags & (DBG(ALWAYS_NGG_CULLING_ALL) | DBG(ALWAYS_NGG_CULLING_TESS))))
+      sscreen->debug_flags |= DBG(NO_NGG_CULLING);
+
    sscreen->use_ngg = sscreen->info.chip_class >= GFX10 && sscreen->info.family != CHIP_NAVI14 &&
                       !(sscreen->debug_flags & DBG(NO_NGG));
    sscreen->use_ngg_culling = sscreen->use_ngg && !(sscreen->debug_flags & DBG(NO_NGG_CULLING));