diff options
| author | Marek Olšák <[email protected]> | 2017-08-16 00:54:45 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2017-08-22 13:29:47 +0200 |
| commit | 166823bfd26ff7e9b88099598305967336525716 (patch) | |
| tree | 1bb46d24b8802b8f6a376060eb7c266c96756927 /src/gallium | |
| parent | 248555ed2f12a263fa3aba22704fa4178c73f119 (diff) | |
radeonsi/gfx9: add a temporary workaround for a tessellation driver bug
The workaround will do for now. The root cause is still unknown.
This fixes new piglit: 16in-1out
Cc: 17.1 17.2 <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Diffstat (limited to 'src/gallium')
| -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 9631f18ff7f..cb9bbd20805 100644 --- a/src/gallium/drivers/radeonsi/si_state_draw.c +++ b/src/gallium/drivers/radeonsi/si_state_draw.c @@ -195,7 +195,11 @@ static void si_emit_derived_tess_state(struct si_context *sctx, */ *num_patches = MIN2(*num_patches, 40); - if (sctx->b.chip_class == SI) { + if (sctx->b.chip_class == SI || + /* TODO: fix GFX9 where a threadgroup contains more than 1 wave and + * LS vertices per patch > HS vertices per patch. Piglit: 16in-1out */ + (sctx->b.chip_class == GFX9 && + num_tcs_input_cp > num_tcs_output_cp)) { /* SI bug workaround, related to power management. Limit LS-HS * threadgroups to only one wave. */ |