From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Tue, 25 Apr 2017 22:36:12 +0000 (+0200)
Subject: radeonsi: use unsynchronized transfers for shader binary uploads
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ec301497b87e915924240173ac2854d835446cc6;p=mesa.git

radeonsi: use unsynchronized transfers for shader binary uploads

Because the buffer is new, it can't be referenced by any CS.

This can save few CPU cycles by skipping the whole
PIPE_TRANSFER_UNSYNCHRONIZED if in amdgpu_bo_map().

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
---

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 3c2c7f5c75b..69634b12c33 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -6185,7 +6185,8 @@ int si_shader_binary_upload(struct si_screen *sscreen, struct si_shader *shader)
 
 	/* Upload. */
 	ptr = sscreen->b.ws->buffer_map(shader->bo->buf, NULL,
-					PIPE_TRANSFER_READ_WRITE);
+					PIPE_TRANSFER_READ_WRITE |
+					PIPE_TRANSFER_UNSYNCHRONIZED);
 
 	if (prolog) {
 		util_memcpy_cpu_to_le32(ptr, prolog->code, prolog->code_size);