Module: Mesa Branch: main Commit: 7e703e4428c096fcf12019ba0f4f75940c1fa1f4 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=7e703e4428c096fcf12019ba0f4f75940c1fa1f4
Author: Danylo Piliaiev <[email protected]> Date: Thu Feb 17 17:02:06 2022 +0200 turnip: Always use GMEM for feedback loops in autotuner For ordinary feedback loops GMEM is a lot faster than sysmem since we don't set SINGLE_PRIM mode. For feedback loops with ordered rasterization GMEM should also be faster. Signed-off-by: Danylo Piliaiev <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15106> --- src/freedreno/vulkan/tu_autotune.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/src/freedreno/vulkan/tu_autotune.c b/src/freedreno/vulkan/tu_autotune.c index cee3321c70b..421de8bd69d 100644 --- a/src/freedreno/vulkan/tu_autotune.c +++ b/src/freedreno/vulkan/tu_autotune.c @@ -474,6 +474,19 @@ tu_autotune_use_bypass(struct tu_autotune *at, const struct tu_render_pass *pass = cmd_buffer->state.pass; const struct tu_framebuffer *framebuffer = cmd_buffer->state.framebuffer; + for (unsigned i = 0; i < pass->subpass_count; i++) { + const struct tu_subpass *subpass = &pass->subpasses[i]; + /* GMEM works much faster in this case */ + if (subpass->raster_order_attachment_access) + return false; + + /* Would be very slow in sysmem mode because we have to enable + * SINGLE_PRIM_MODE(FLUSH_PER_OVERLAP_AND_OVERWRITE) + */ + if (subpass->feedback_loop_color || subpass->feedback_loop_ds) + return false; + } + /* If we would want to support buffers that could be submitted * several times we would have to copy the sample counts of renderpasses * after each submission of such buffer (like with u_trace support).
