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blorp: Ensure MSAA fast clear in correct modes (xe2)

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Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28620>
This commit is contained in:
Jianxun Zhang
2024-04-19 22:18:20 -07:00
committed by Marge Bot
parent 9c8dffd282
commit c9ee484f21
1 changed files with 35 additions and 10 deletions
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45
src/intel/blorp/blorp_genX_exec_brw.h
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@@ -866,18 +866,43 @@ blorp_emit_ps_config(struct blorp_batch *batch,
}
blorp_emit(batch, GENX(3DSTATE_PS_EXTRA), psx) {
if (prog_data) {
psx.PixelShaderValid = true;
#if GFX_VER < 20
psx.AttributeEnable = prog_data->num_varying_inputs > 0;
#endif
psx.PixelShaderIsPerSample = prog_data->persample_dispatch;
psx.PixelShaderComputedDepthMode = prog_data->computed_depth_mode;
psx.PixelShaderComputesStencil = prog_data->computed_stencil;
}
if (params->src.enabled)
psx.PixelShaderKillsPixel = true;
if (prog_data) {
psx.PixelShaderValid = true;
psx.PixelShaderComputedDepthMode = prog_data->computed_depth_mode;
psx.PixelShaderComputesStencil = prog_data->computed_stencil;
psx.PixelShaderIsPerSample = prog_data->persample_dispatch;
#if GFX_VER < 20
psx.AttributeEnable = prog_data->num_varying_inputs > 0;
#else
/* Bspec 57340 (r59562):
*
* For MSAA fast clear, it (clear shader) must be in per-pixel
* dispatch mode.
*
* Bspec 56424 (r58933):
*
* Bit 6 of Bit Group 0: Pixel Shader Is Per Sample
* If this bit is DISABLED, the dispatch rate is determined by the
* value of Pixel Shader Is Per Coarse Pixel.
*
* Bit 4 of Bit Group 0: Pixel Shader Is Per Coarse Pixel
* If Pixel Shader Is Per Sample is DISABLED and this bit is
* DISABLED, the pixel shader is dispatched at the per pixel
* shading rate.
*
* The below assertion ensures the MSAA clear shader is in per-pixel
* dispatch mode.
*/
if (params->fast_clear_op == ISL_AUX_OP_FAST_CLEAR &&
params->num_samples > 1) {
assert(!psx.PixelShaderIsPerSample &&
!psx.PixelShaderIsPerCoarsePixel);
}
#endif
}
}
}