From aab1537568475fefcf2981c87a7b1689f655a4e7 Mon Sep 17 00:00:00 2001 From: Samuel Pitoiset Date: Fri, 6 Oct 2017 16:03:15 +0200 Subject: [PATCH] radv: allow launching waves out-of-order for compute MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Ported from RadeonSI, and -pro seems to enable it as well. Signed-off-by: Samuel Pitoiset Acked-by: Nicolai Hähnle Reviewed-by: Bas Nieuwenhuizen --- src/amd/vulkan/radv_cmd_buffer.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c index 4b41b358e99..3f6945bfea3 100644 --- a/src/amd/vulkan/radv_cmd_buffer.c +++ b/src/amd/vulkan/radv_cmd_buffer.c @@ -3216,7 +3216,15 @@ radv_emit_dispatch_packets(struct radv_cmd_buffer *cmd_buffer, } } else { unsigned blocks[3] = { info->blocks[0], info->blocks[1], info->blocks[2] }; - unsigned dispatch_initiator = S_00B800_COMPUTE_SHADER_EN(1); + unsigned dispatch_initiator = S_00B800_COMPUTE_SHADER_EN(1) | + S_00B800_FORCE_START_AT_000(1); + + if (cmd_buffer->device->physical_device->rad_info.chip_class >= CIK) { + /* If the KMD allows it (there is a KMD hw register for + * it), allow launching waves out-of-order. + */ + dispatch_initiator |= S_00B800_ORDER_MODE(1); + } if (info->unaligned) { unsigned *cs_block_size = compute_shader->info.cs.block_size; -- 2.30.2