From: Marek Olšák Date: Tue, 17 Apr 2018 19:28:04 +0000 (-0400) Subject: radeonsi/gfx9: fix a hang with an empty first IB X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d15fb766aa3c98ffbe16d050b2af4804e4b12c57;p=mesa.git radeonsi/gfx9: fix a hang with an empty first IB This packet causes the no-op IB detection to fail, so the IB is always submitted. Also fix the no-op IB detection by moving the begin call. Cc: 18.0 Reviewed-by: Nicolai Hähnle --- diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c index 466546b76b7..bf88346ca1e 100644 --- a/src/gallium/drivers/radeonsi/si_pipe.c +++ b/src/gallium/drivers/radeonsi/si_pipe.c @@ -474,9 +474,6 @@ static struct pipe_context *si_create_context(struct pipe_screen *screen, sctx->sample_mask.sample_mask = 0xffff; - /* these must be last */ - si_begin_new_gfx_cs(sctx); - if (sctx->chip_class >= GFX9) { sctx->wait_mem_scratch = (struct r600_resource*) pipe_buffer_create(screen, 0, PIPE_USAGE_DEFAULT, 4); @@ -492,6 +489,8 @@ static struct pipe_context *si_create_context(struct pipe_screen *screen, radeon_emit(cs, sctx->wait_mem_scratch->gpu_address); radeon_emit(cs, sctx->wait_mem_scratch->gpu_address >> 32); radeon_emit(cs, sctx->wait_mem_number); + radeon_add_to_buffer_list(sctx, cs, sctx->wait_mem_scratch, + RADEON_USAGE_WRITE, RADEON_PRIO_FENCE); } /* CIK cannot unbind a constant buffer (S_BUFFER_LOAD doesn't skip loads @@ -564,6 +563,8 @@ static struct pipe_context *si_create_context(struct pipe_screen *screen, util_dynarray_init(&sctx->resident_img_needs_color_decompress, NULL); util_dynarray_init(&sctx->resident_tex_needs_depth_decompress, NULL); + /* this must be last */ + si_begin_new_gfx_cs(sctx); return &sctx->b; fail: fprintf(stderr, "radeonsi: Failed to create a context.\n");