diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state_draw.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c index e7f8389caf3..d61374e95ca 100644 --- a/src/gallium/drivers/radeonsi/si_state_draw.c +++ b/src/gallium/drivers/radeonsi/si_state_draw.c @@ -170,6 +170,14 @@ static bool si_emit_derived_tess_state(struct si_context *sctx, */ *num_patches = MIN2(*num_patches, 40); + /* Make sure that vector lanes are reasonably occupied. It probably + * doesn't matter much because this is LS-HS, and TES is likely to + * occupy significantly more CUs. + */ + unsigned temp_verts_per_tg = *num_patches * max_verts_per_patch; + if (temp_verts_per_tg > 64 && temp_verts_per_tg % 64 < 48) + *num_patches = (temp_verts_per_tg & ~63) / max_verts_per_patch; + if (sctx->chip_class == SI) { /* SI bug workaround, related to power management. Limit LS-HS * threadgroups to only one wave. |