Mesa (master): radv: hardcode the number of waves for the GFX6 LS-HS bug

[GitLab Mirror]

Module: Mesa
Branch: master
Commit: d1e1f7c4d590edf731d3a6c2771d29a8ce4ee9ff
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d1e1f7c4d590edf731d3a6c2771d29a8ce4ee9ff

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Thu Oct 31 09:35:22 2019 +0100

radv: hardcode the number of waves for the GFX6 LS-HS bug

It's always 64.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>

---

 src/amd/vulkan/radv_nir_to_llvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/amd/vulkan/radv_nir_to_llvm.c b/src/amd/vulkan/radv_nir_to_llvm.c
index b1168b941b9..5b4ccc60e72 100644
--- a/src/amd/vulkan/radv_nir_to_llvm.c
+++ b/src/amd/vulkan/radv_nir_to_llvm.c
@@ -190,7 +190,7 @@ get_tcs_num_patches(struct radv_shader_context *ctx)
 
 	/* GFX6 bug workaround - limit LS-HS threadgroups to only one wave. */
 	if (ctx->options->chip_class == GFX6) {
-		unsigned one_wave = ctx->options->wave_size / MAX2(num_tcs_input_cp, num_tcs_output_cp);
+		unsigned one_wave = 64 / MAX2(num_tcs_input_cp, num_tcs_output_cp);
 		num_patches = MIN2(num_patches, one_wave);
 	}
 	return num_patches;