From: Marek Olšák Date: Tue, 24 Jan 2017 02:41:05 +0000 (+0100) Subject: radeonsi: also prefetch compute shaders X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4a4ff66dbebe836492a6b6321742c21ca9bcd70a;p=mesa.git radeonsi: also prefetch compute shaders Reviewed-by: Nicolai Hähnle --- diff --git a/src/gallium/drivers/radeonsi/si_compute.c b/src/gallium/drivers/radeonsi/si_compute.c index fe29fb154d5..d05c488f38c 100644 --- a/src/gallium/drivers/radeonsi/si_compute.c +++ b/src/gallium/drivers/radeonsi/si_compute.c @@ -372,6 +372,18 @@ static bool si_switch_compute_shader(struct si_context *sctx, RADEON_PRIO_SCRATCH_BUFFER); } + /* Prefetch the compute shader to TC L2. + * + * We should also prefetch graphics shaders if a compute dispatch was + * the last command, and the compute shader if a draw call was the last + * command. However, that would add more complexity and we're likely + * to get a shader state change in that case anyway. + */ + if (sctx->b.chip_class >= CIK) { + cik_prefetch_TC_L2_async(sctx, &program->shader.bo->b.b, + 0, program->shader.bo->b.b.width0); + } + shader_va = shader->bo->gpu_address + offset; if (program->use_code_object_v2) { /* Shader code is placed after the amd_kernel_code_t