radeonsi: enable streamout AKA transform feedback for SI

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

diff --git a/src/gallium/drivers/radeonsi/radeonsi_pipe.c b/src/gallium/drivers/radeonsi/radeonsi_pipe.c
index e219e36..5220e41 100644 (file)
--- a/src/gallium/drivers/radeonsi/radeonsi_pipe.c
+++ b/src/gallium/drivers/radeonsi/radeonsi_pipe.c
@@ -342,6 +342,7 @@ static const char* r600_get_name(struct pipe_screen* pscreen)
 static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 {
        struct r600_screen *rscreen = (struct r600_screen *)pscreen;
+       bool has_streamout = HAVE_LLVM >= 0x0304 && rscreen->b.chip_class == SI;
 
        switch (param) {
        /* Supported features (boolean caps). */
@@ -414,20 +415,13 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
                return 0;
 
        /* Stream output. */
-#if 0
        case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
-               return debug_get_bool_option("R600_STREAMOUT", FALSE) ? 4 : 0;
+               return has_streamout ? 4 : 0;
        case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
-               return debug_get_bool_option("R600_STREAMOUT", FALSE) ? 1 : 0;
+               return has_streamout ? 1 : 0;
        case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
        case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
-               return 16*4;
-#endif
-       case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
-       case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
-       case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
-       case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
-               return 0;
+               return has_streamout ? 32*4 : 0;
 
        /* Texturing. */
        case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: