OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

radv: Only use 32 KiB per threadgroup on Stoney.

Browse Source 
Causes hangs on some machines.

What works for dEQP-VK.tessellation.shader_input_output.barrier:

- running num_patches = 6 (which limits LDS to 32 KiB)
- running num_patches = 8, and artificially cutting LDS size at 32 KiB.

CC: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Bas Nieuwenhuizen
2019-01-14 14:44:15 +01:00
committed by Bas Nieuwenhuizen
parent 76df5e8f52
commit 76b12fa564
1 changed files with 10 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/amd/vulkan/radv_nir_to_llvm.c
View File

@@ -254,7 +254,16 @@ get_tcs_num_patches(struct radv_shader_context *ctx)
/* Make sure that the data fits in LDS. This assumes the shaders only
* use LDS for the inputs and outputs.
*/
hardware_lds_size = ctx->options->chip_class >= CIK ? 65536 : 32768;
hardware_lds_size = 32768;
/* Looks like STONEY hangs if we use more than 32 KiB LDS in a single
* threadgroup, even though there is more than 32 KiB LDS.
*
* Test: dEQP-VK.tessellation.shader_input_output.barrier
*/
if (ctx->options->chip_class >= CIK && ctx->options->family != CHIP_STONEY)
hardware_lds_size = 65536;
num_patches = MIN2(num_patches, hardware_lds_size / (input_patch_size + output_patch_size));
/* Make sure the output data fits in the offchip buffer */
num_patches = MIN2(num_patches, (ctx->options->tess_offchip_block_dw_size * 4) / output_patch_size);