Mesa (master): radeonsi: reduce MAX_GEOMETRY_OUTPUT_VERTICES

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Module: Mesa
Branch: master
Commit: d15cc1f55a7fa511d62124c1b4dd7f12c0ab240c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d15cc1f55a7fa511d62124c1b4dd7f12c0ab240c

Author: Nicolai Hähnle <nicolai.haehnle at amd.com>
Date:   Tue Jun 19 13:53:01 2018 +0200

radeonsi: reduce MAX_GEOMETRY_OUTPUT_VERTICES

This fixes piglit spec at glsl-1.50@gs-max-output on gfx9.

Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>

---

 src/gallium/drivers/radeonsi/si_get.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/si_get.c b/src/gallium/drivers/radeonsi/si_get.c
index c1bddca1a66..0c561e7ca91 100644
--- a/src/gallium/drivers/radeonsi/si_get.c
+++ b/src/gallium/drivers/radeonsi/si_get.c
@@ -263,7 +263,10 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 
 	/* Geometry shader output. */
 	case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
-		return 1024;
+		/* gfx9 has to report 256 to make piglit/gs-max-output pass.
+		 * gfx8 and earlier can do 1024.
+		 */
+		return 256;
 	case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 		return 4095;
 	case PIPE_CAP_MAX_GS_INVOCATIONS: