From: Dave Airlie <airlied@redhat.com>
Date: Tue, 17 Jan 2017 20:26:31 +0000 (+1000)
Subject: radv: disable vertex reuse when writing viewport index
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=aac562f112ea9194b416c97336dcbbd3c1da812b;p=mesa.git

radv: disable vertex reuse when writing viewport index

This fixes some issues we'd hit later if using viewport
indexes.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index 27fa4056400..c6f238bfa26 100644
--- a/src/amd/vulkan/radv_cmd_buffer.c
+++ b/src/amd/vulkan/radv_cmd_buffer.c
@@ -511,6 +511,8 @@ radv_emit_vertex_shader(struct radv_cmd_buffer *cmd_buffer,
 			       cull_dist_mask << 8 |
 			       clip_dist_mask);
 
+	radeon_set_context_reg(cmd_buffer->cs, R_028AB4_VGT_REUSE_OFF,
+			       S_028AB4_REUSE_OFF(vs->info.vs.writes_viewport_index));
 }