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nir: Introduce new intrinsics for AMD specific mesh shader task ring.

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The mesh shader task ring is a buffer in VRAM which we will use to
store some mesh shader outputs that don't fit into LDS.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16737>
This commit is contained in:
Timur Kristóf
2022-06-01 14:32:39 +02:00
committed by Marge Bot
parent b730f91247
commit 02c87e66e9
2 changed files with 5 additions and 0 deletions
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2
src/compiler/nir/nir_divergence_analysis.c
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@@ -146,6 +146,8 @@ visit_intrinsic(nir_shader *shader, nir_intrinsic_instr *instr)
case nir_intrinsic_load_ring_tess_offchip_amd:
case nir_intrinsic_load_ring_tess_factors_offset_amd:
case nir_intrinsic_load_ring_tess_offchip_offset_amd:
case nir_intrinsic_load_ring_mesh_scratch_amd:
case nir_intrinsic_load_ring_mesh_scratch_offset_amd:
case nir_intrinsic_load_ring_esgs_amd:
case nir_intrinsic_load_ring_es2gs_offset_amd:
case nir_intrinsic_load_ring_task_draw_amd:

3
src/compiler/nir/nir_intrinsics.py
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@@ -1296,6 +1296,9 @@ system_value("ring_es2gs_offset_amd", 1)
system_value("ring_task_draw_amd", 4)
# Address of the task shader payload ring (used for all other outputs)
system_value("ring_task_payload_amd", 4)
# Address of the mesh shader scratch ring (used for excess mesh shader outputs)
system_value("ring_mesh_scratch_amd", 4)
system_value("ring_mesh_scratch_offset_amd", 1)
# Pointer into the draw and payload rings
system_value("task_ring_entry_amd", 1)
# Pointer into the draw and payload rings