freedreno: add batch-cache and batch reordering

Note that I originally also had a entry-point that would construct a key
and do lookup from a pipe_surface.  I ended up not needing that (yet?)
but it is easy-enough to re-introduce later if we need it for the blit
path.

For now, not enabled by default, but can be enabled (on a3xx/a4xx) with
FD_MESA_DEBUG=reorder.

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
index 222f2881f01..31f2cb2147a 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -75,6 +75,7 @@ static const struct debug_named_value debug_options[] = {
 		{"flush",     FD_DBG_FLUSH,  "Force flush after every draw"},
 		{"deqp",      FD_DBG_DEQP,   "Enable dEQP hacks"},
 		{"nir",       FD_DBG_NIR,    "Prefer NIR as native IR"},
+		{"reorder",   FD_DBG_REORDER,"Enable reordering for draws/blits"},
 		DEBUG_NAMED_VALUE_END
 };
 
@@ -134,6 +135,8 @@ fd_screen_destroy(struct pipe_screen *pscreen)
 	if (screen->dev)
 		fd_device_del(screen->dev);
 
+	fd_bc_fini(&screen->batch_cache);
+
 	free(screen);
 }
 
@@ -662,6 +665,16 @@ fd_screen_create(struct fd_device *dev)
 		goto fail;
 	}
 
+	/* NOTE: don't enable reordering on a2xx, since completely untested.
+	 * Also, don't enable if we have too old of a kernel to support
+	 * growable cmdstream buffers, since memory requirement for cmdstream
+	 * buffers would be too much otherwise.
+	 */
+	if ((screen->gpu_id >= 300) && (fd_device_version(dev) >= FD_VERSION_UNLIMITED_CMDS))
+		screen->reorder = !!(fd_mesa_debug & FD_DBG_REORDER);
+
+	fd_bc_init(&screen->batch_cache);
+
 	pscreen->destroy = fd_screen_destroy;
 	pscreen->get_param = fd_screen_get_param;
 	pscreen->get_paramf = fd_screen_get_paramf;