Mesa (master): radv: disable vertex reuse when writing viewport index

[Dave Airlie]

Module: Mesa
Branch: master
Commit: aac562f112ea9194b416c97336dcbbd3c1da812b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=aac562f112ea9194b416c97336dcbbd3c1da812b

Author: Dave Airlie <airlied at redhat.com>
Date:   Wed Jan 18 06:26:31 2017 +1000

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 at basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied at redhat.com>

---

 src/amd/vulkan/radv_cmd_buffer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index 27fa405..c6f238b 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));
 }