From 3da91b3327fb93d0364c0ca9d0216f695160831d Mon Sep 17 00:00:00 2001 From: Pierre-Eric Pelloux-Prayer Date: Thu, 30 Jan 2020 12:16:46 +0100 Subject: [PATCH] radeonsi/ngg: add VGT_FLUSH when enabling fast launch Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2418 Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2426 Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2434 Tested-by: Marge Bot Part-of: --- src/gallium/drivers/radeonsi/si_state_draw.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c index 2f87896ead6..96fa59145ae 100644 --- a/src/gallium/drivers/radeonsi/si_state_draw.c +++ b/src/gallium/drivers/radeonsi/si_state_draw.c @@ -2080,6 +2080,11 @@ static void si_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *i } if (ngg_culling != sctx->ngg_culling) { + /* Insert a VGT_FLUSH when enabling fast launch changes to prevent hangs. + * See issues #2418, #2426, #2434 + */ + if (ngg_culling & SI_NGG_CULL_GS_FAST_LAUNCH_ALL) + sctx->flags |= SI_CONTEXT_VGT_FLUSH; sctx->ngg_culling = ngg_culling; sctx->do_update_shaders = true; } -- 2.30.2