nv50: add option to force immediate-mode submission, disable by default

3 files changed, 14 insertions, 4 deletions

diff --git a/src/gallium/drivers/nv50/nv50_screen.c b/src/gallium/drivers/nv50/nv50_screen.c
index 114ae9b3860..7e2e8aa336e 100644
--- a/src/gallium/drivers/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nv50/nv50_screen.c
@@ -95,6 +95,8 @@ nv50_screen_is_format_supported(struct pipe_screen *pscreen,
 static int
 nv50_screen_get_param(struct pipe_screen *pscreen, int param)
 {
+	struct nv50_screen *screen = nv50_screen(pscreen);
+
 	switch (param) {
 	case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 		return 32;
@@ -132,9 +134,9 @@ nv50_screen_get_param(struct pipe_screen *pscreen, int param)
 	case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 		return 1;
 	case NOUVEAU_CAP_HW_VTXBUF:
-		return 1;
+		return screen->force_push ? 0 : 1;
 	case NOUVEAU_CAP_HW_IDXBUF:
-		return 1;
+		return screen->force_push ? 0 : 1;
 	case PIPE_CAP_INDEP_BLEND_ENABLE:
 		return 1;
 	case PIPE_CAP_INDEP_BLEND_FUNC:
@@ -493,6 +495,7 @@ nv50_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev)
 	so_ref (NULL, &so);
 	nouveau_pushbuf_flush(chan, 0);
 
+	screen->force_push = debug_get_bool_option("NV50_ALWAYS_PUSH", FALSE);
 	return pscreen;
 }
 
diff --git a/src/gallium/drivers/nv50/nv50_screen.h b/src/gallium/drivers/nv50/nv50_screen.h
index 2687b721277..d1bc80cb9ed 100644
--- a/src/gallium/drivers/nv50/nv50_screen.h
+++ b/src/gallium/drivers/nv50/nv50_screen.h
@@ -28,6 +28,8 @@ struct nv50_screen {
 	struct nouveau_bo *tsc;
 
 	struct nouveau_stateobj *static_init;
+
+	boolean force_push;
 };
 
 static INLINE struct nv50_screen *
diff --git a/src/gallium/drivers/nv50/nv50_vbo.c b/src/gallium/drivers/nv50/nv50_vbo.c
index 9d49ad6db24..7eedd492718 100644
--- a/src/gallium/drivers/nv50/nv50_vbo.c
+++ b/src/gallium/drivers/nv50/nv50_vbo.c
@@ -582,9 +582,14 @@ nv50_vbo_validate(struct nv50_context *nv50)
 	if (nv50->vtxbuf_nr == 0)
 		return NULL;
 
-	if (NV50_USING_LOATHED_EDGEFLAG(nv50))
+	if (nv50->screen->force_push || NV50_USING_LOATHED_EDGEFLAG(nv50))
 		nv50->vbo_fifo = 0xffff;
-	nv50->vbo_fifo = 0xffff;
+
+	for (i = 0; i < nv50->vtxbuf_nr; i++) {
+		if (nv50->vtxbuf[i].stride &&
+		    !(nv50->vtxbuf[i].buffer->usage & PIPE_BUFFER_USAGE_VERTEX))
+			nv50->vbo_fifo = 0xffff;
+	}
 
 	n_ve = MAX2(nv50->vtxelt->num_elements, nv50->state.vtxelt_nr);