mirror of https://gitlab.freedesktop.org/mesa/mesa
106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
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* Copyright 2023 Advanced Micro Devices, Inc.
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* SPDX-License-Identifier: MIT
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*/
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#ifndef AC_HW_STAGE_H
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#define AC_HW_STAGE_H
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/**
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* Shader stages as understood by AMD HW.
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*
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* Every HW generation has a dedicated stage for compute and PS,
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* but it varies greatly over other geometry processing stages.
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*
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* Valid graphics shader configurations:
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* (-> = merged with the next stage)
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*
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* -------------------------|-----|-----|----|----|----
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* API shaders: VS | TCS | TES | GS |copy| FS
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* Are compiled as: | | | | |
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* GFX6-8 ------------------|-----|-----|----|----|----
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* - VS & PS: VS | | | | | PS
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* - with GS: ES | | | GS | VS | PS
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* - with tess: LS | HS | VS | | | PS
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* - with both: LS | HS | ES | GS | VS | PS
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* GFX9-10.3/legacy --------|-----|-----|----|----|----
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* - VS & PS: VS | | | | | PS
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* - with GS: -> | | | GS | VS | PS
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* - with tess: -> | HS | VS | | | PS
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* - with both: -> | HS | -> | GS | VS | PS
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* GFX10+/NGG --------------|-----|-----|----|----|----
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* - VS & PS: GS | | | | | PS
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* - with GS: -> | | | GS | | PS
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* - with tess: -> | HS | GS | | | PS
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* - with both: -> | HS | -> | GS | | PS
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* -------------------------|-----|-----|----|----|----
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*
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* Valid mesh shading graphics pipeline configurations:
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*
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* -------------------------------|---------------|----
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* API shaders: TS | MS | FS
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* Are compiled as: | |
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* GFX10.3+/NGG ------------------|---------------|----
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* - mesh only: | GS | PS
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* - task & mesh: CS | GS | PS
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* -------------------------------|---------------|----
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*
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*/
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enum ac_hw_stage
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{
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/* GFX6-8 only, merged into HS on GFX9+:
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* - vertex shader (when tess is used)
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*/
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AC_HW_LOCAL_SHADER,
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/* GFX6-8:
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* - tess control shader
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*
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* GFX9+:
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* Also known as surface shader.
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* - merged vertex and tess control shader
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*/
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AC_HW_HULL_SHADER,
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/* GFX6-8 only, merged into GS on GFX9+:
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* - vertex shader before GS (when tess is not used)
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* - tess eval shader before GS (when tess is used)
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*/
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AC_HW_EXPORT_SHADER,
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/* GFX6-8:
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* - geometry shader
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* GFX9-10/legacy:
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* - merged vertex + geometry (when tess is not used)
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* - merged tess eval + geometry (when tess is used)
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*/
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AC_HW_LEGACY_GEOMETRY_SHADER,
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/* GFX6-10/legacy only:
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* - vertex shader (when tess and GS are not used)
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* - tess eval shader (when GS is not used),
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* - "GS copy" shader (always when GS is used)
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*/
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AC_HW_VERTEX_SHADER,
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/* GFX10+/NGG:
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* All pre-rasterization stages (after tess). Also known as primitive shader.
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* - vertex shader (when tess and GS are not used)
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* - tess eval shader (when GS is not used)
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* - merged vertex + geometry shader (when GS is used but tess is not)
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* - merged tess eval + geometry shader (when both tess and GS are used)
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* - mesh shader
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*/
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AC_HW_NEXT_GEN_GEOMETRY_SHADER,
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/* Fragment shader.
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* Call it "pixel shader" because that is how HW docs call it.
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*/
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AC_HW_PIXEL_SHADER,
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/* Compute and compute-like shaders, such as task shader and ray tracing. */
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AC_HW_COMPUTE_SHADER,
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};
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#endif
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