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| author | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2016-06-17 20:08:42 +0200 |
|---|---|---|
| committer | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2016-06-20 18:29:55 +0200 |
| commit | 1167905c41d4594153d6649c0cade96a83831cbd (patch) | |
| tree | fcbda64dd20a5c06a7875328f4e9dae2057eeb21 /src/gallium/drivers/radeonsi/si_state_shaders.c | |
| parent | 650137a9c8fb5ae4a214440ca3ebc43461e2d394 (diff) | |
| download | external_mesa3d-1167905c41d4594153d6649c0cade96a83831cbd.zip external_mesa3d-1167905c41d4594153d6649c0cade96a83831cbd.tar.gz external_mesa3d-1167905c41d4594153d6649c0cade96a83831cbd.tar.bz2 | |
radeonsi: use trapezoid distribution for tess on Fiji and Polaris
This yields a small performance improvement in Unigine Heaven.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Diffstat (limited to 'src/gallium/drivers/radeonsi/si_state_shaders.c')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state_shaders.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c index a7af76d..daef49d 100644 --- a/src/gallium/drivers/radeonsi/si_state_shaders.c +++ b/src/gallium/drivers/radeonsi/si_state_shaders.c @@ -300,9 +300,13 @@ static void si_set_tesseval_regs(struct si_screen *sscreen, else topology = V_028B6C_OUTPUT_TRIANGLE_CW; - if (sscreen->b.chip_class >= VI) - distribution_mode = V_028B6C_DISTRIBUTION_MODE_DONUTS; - else + if (sscreen->b.chip_class >= VI) { + if (sscreen->b.family == CHIP_FIJI || + sscreen->b.family >= CHIP_POLARIS10) + distribution_mode = V_028B6C_DISTRIBUTION_MODE_TRAPEZOIDS; + else + distribution_mode = V_028B6C_DISTRIBUTION_MODE_DONUTS; + } else distribution_mode = V_028B6C_DISTRIBUTION_MODE_NO_DIST; si_pm4_set_reg(pm4, R_028B6C_VGT_TF_PARAM, |