[Mesa-dev] [PATCH 53/53] r600: enable tessellation for evergreen/cayman

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

This enables tessellation for evergreen/cayman,

This will need changes before committing depending
on what hw works etc.
Currently known broken are SUMO/CAICOS
working are CAYMAN/REDWOOD/BARTS/TURKS.
---
 src/gallium/drivers/r600/r600_pipe.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index 78af44d..a5af72a 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -343,7 +343,6 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_USER_VERTEX_BUFFERS:
 	case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 	case PIPE_CAP_VERTEXID_NOBASE:
-	case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 	case PIPE_CAP_DEPTH_BOUNDS_TEST:
 	case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 	case PIPE_CAP_SHAREABLE_SHADERS:
@@ -351,6 +350,8 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_CLEAR_TEXTURE:
 		return 0;
 
+	case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
+		return 30;
 	/* Stream output. */
 	case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 		return rscreen->b.has_streamout ? 4 : 0;
@@ -440,6 +441,8 @@ static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, e
 	case PIPE_SHADER_COMPUTE:
 		break;
 	case PIPE_SHADER_GEOMETRY:
+	case PIPE_SHADER_TESS_CTRL:
+	case PIPE_SHADER_TESS_EVAL:
 		if (rscreen->b.family >= CHIP_CEDAR)
 			break;
 		/* pre-evergreen geom shaders need newer kernel */
-- 
2.5.0