diff options
| author | Marek Olšák <[email protected]> | 2018-06-05 02:09:52 -0400 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2018-06-19 12:52:28 -0400 |
| commit | 0d685ba2900734d8af4a47ef9586d511ad754ce4 (patch) | |
| tree | 67380169c1c74ac926a6e445fd58479dd53e6af8 /src/gallium/drivers/radeonsi | |
| parent | e93fe403bc0e85994d1be59ad3ad5bf65ecbf971 (diff) | |
radeonsi: make sure LS-HS vector lanes are reasonably occupied
Tested-by: Dieter Nützel <[email protected]>
Diffstat (limited to 'src/gallium/drivers/radeonsi')
| -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. |