Module: Mesa
Branch: master
Commit: aab1537568475fefcf2981c87a7b1689f655a4e7
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=aab1537568475fefcf2981c87a7b1689f655a4e7

Author: Samuel Pitoiset <[email protected]>
Date:   Fri Oct  6 16:03:15 2017 +0200

radv: allow launching waves out-of-order for compute

Ported from RadeonSI, and -pro seems to enable it as well.

Signed-off-by: Samuel Pitoiset <[email protected]>
Acked-by: Nicolai Hähnle <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>

---

 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 4b41b358e9..3f6945bfea 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;

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