Module: Mesa Branch: 17.1 Commit: 54bb87c25a73a9c0d4c8c65b6df586dc144db361 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=54bb87c25a73a9c0d4c8c65b6df586dc144db361
Author: Marek Olšák <[email protected]> Date: Wed Aug 16 00:54:45 2017 +0200 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]> (cherry picked from commit 166823bfd26ff7e9b88099598305967336525716) [Andres Gomez: resolve trivial conflicts] Signed-off-by: Andres Gomez <[email protected]> Conflicts: src/gallium/drivers/radeonsi/si_state_draw.c --- src/gallium/drivers/radeonsi/si_state_draw.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c index a62b1aa6f2..2a16762b7e 100644 --- a/src/gallium/drivers/radeonsi/si_state_draw.c +++ b/src/gallium/drivers/radeonsi/si_state_draw.c @@ -181,7 +181,11 @@ static void si_emit_derived_tess_state(struct si_context *sctx, *num_patches = MIN2(*num_patches, 40); /* SI bug workaround - limit LS-HS threadgroups to only one wave. */ - 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)) { unsigned one_wave = 64 / MAX2(num_tcs_input_cp, num_tcs_output_cp); *num_patches = MIN2(*num_patches, one_wave); } _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
