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

It's always 64.

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

diff --git a/src/amd/vulkan/radv_nir_to_llvm.c b/src/amd/vulkan/radv_nir_to_llvm.c
index b1168b941b96686da541a029b164e99faffa9b8d..5b4ccc60e7237ea19d5b0d9089d27c3fad55684f 100644 (file)
--- 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;