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| author | Marek Olšák <marek.olsak@amd.com> | 2016-11-26 15:52:05 +0100 |
|---|---|---|
| committer | Emil Velikov <emil.l.velikov@gmail.com> | 2016-12-14 19:03:10 +0000 |
| commit | 9275ed559534862685f8fff2e82da628edfa871c (patch) | |
| tree | bdddb8ad0a35ffc64958ac0df58ec29bde7895de | |
| parent | ad374fb2a9928ab9794436fb67c71c27edacb1ed (diff) | |
| download | external_mesa3d-9275ed559534862685f8fff2e82da628edfa871c.tar.gz external_mesa3d-9275ed559534862685f8fff2e82da628edfa871c.tar.bz2 external_mesa3d-9275ed559534862685f8fff2e82da628edfa871c.zip | |
radeonsi: disable RB+ blend optimizations for dual source blending
This fixes dual source blending on Stoney. The fix was copied from Vulkan.
The problem was discovered during internal testing.
Cc: 13.0 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
(cherry picked from commit 5e5573b1bf8565f38e9b770b5357d069e80ff00d)
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 53f860d2d7..9e6e3d2b08 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -557,6 +557,17 @@ static void *si_create_blend_state_mode(struct pipe_context *ctx, } if (sctx->b.family == CHIP_STONEY) { + /* Disable RB+ blend optimizations for dual source blending. + * Vulkan does this. + */ + if (blend->dual_src_blend) { + for (int i = 0; i < 8; i++) { + sx_mrt_blend_opt[i] = + S_028760_COLOR_COMB_FCN(V_028760_OPT_COMB_NONE) | + S_028760_ALPHA_COMB_FCN(V_028760_OPT_COMB_NONE); + } + } + for (int i = 0; i < 8; i++) si_pm4_set_reg(pm4, R_028760_SX_MRT0_BLEND_OPT + i * 4, sx_mrt_blend_opt[i]); |