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radv: enable the Polaris small primitive filter control

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Enable it directly in the preamble, but do not enable line
on Polaris10/11/12 because there is a hw bug.

There is possibly an issue when MSAA is off, but this doesn't
regress any CTS and AMDVLK doesn't have a workaround as well.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset 2018-04-05 10:27:07 +02:00
parent c5b87c94d8
commit d53dff3bfc
1 changed files with 15 additions and 0 deletions
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15
src/amd/vulkan/si_cmd_buffer.c
View file

@ -539,6 +539,21 @@ si_emit_config(struct radv_physical_device *physical_device,
S_028004_ZPASS_INCREMENT_DISABLE(1));
}
/* Enable the Polaris small primitive filter control.
* XXX: There is possibly an issue when MSAA is off (see RadeonSI
* has_msaa_sample_loc_bug). But this doesn't seem to regress anything,
* and AMDVLK doesn't have a workaround as well.
*/
if (physical_device->rad_info.family >= CHIP_POLARIS10) {
unsigned small_prim_filter_cntl =
S_028830_SMALL_PRIM_FILTER_ENABLE(1) |
/* Workaround for a hw line bug. */
S_028830_LINE_FILTER_DISABLE(physical_device->rad_info.family <= CHIP_POLARIS12);
radeon_set_context_reg(cs, R_028830_PA_SU_SMALL_PRIM_FILTER_CNTL,
small_prim_filter_cntl);
}
si_emit_compute(physical_device, cs);
}