diff options
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state_draw.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c index 8651592fed2..77df64397f9 100644 --- a/src/gallium/drivers/radeonsi/si_state_draw.c +++ b/src/gallium/drivers/radeonsi/si_state_draw.c @@ -169,8 +169,12 @@ static void si_emit_derived_tess_state(struct si_context *sctx, /* Make sure that the data fits in LDS. This assumes the shaders only * use LDS for the inputs and outputs. + * + * While CIK can use 64K per threadgroup, there is a hang on Stoney + * with 2 CUs if we use more than 32K. The closed Vulkan driver also + * uses 32K at most on all GCN chips. */ - hardware_lds_size = sctx->b.chip_class >= CIK ? 65536 : 32768; + hardware_lds_size = 32768; *num_patches = MIN2(*num_patches, hardware_lds_size / (input_patch_size + output_patch_size)); |