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becb014d27
This is needed for implementing multiview in panvk, where the address
calculation for multiview outputs is not well-represented by lowering to
nir_intrinsic_store_output with a single offset.
The case where a variable is both per-view and per-{vertex,primitive} is
now unsupported. This would come up with drivers implementing
NV_mesh_shader or using nir_lower_multiview on geometry, tessellation,
or mesh shaders. No drivers currently do either of these. There was some
code that attempted to handle the nested per-view case by unwrapping
per-view/arrayed types twice, but it's unclear to what extent this
actually worked.
ANV and Turnip both rely on per-view outputs being assigned a unique
driver location for each view, so I've added on option to configure that
behavior rather than removing it.
Signed-off-by: Benjamin Lee <benjamin.lee@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31704>
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|---|---|---|
| .. | ||
| bifrost | ||
| test | ||
| valhall | ||
| bi_builder.h.py | ||
| bi_helper_invocations.c | ||
| bi_layout.c | ||
| bi_liveness.c | ||
| bi_lower_divergent_indirects.c | ||
| bi_lower_swizzle.c | ||
| bi_opcodes.c.py | ||
| bi_opcodes.h.py | ||
| bi_opt_constant_fold.c | ||
| bi_opt_copy_prop.c | ||
| bi_opt_cse.c | ||
| bi_opt_dce.c | ||
| bi_opt_dual_tex.c | ||
| bi_opt_mod_props.c | ||
| bi_opt_push_ubo.c | ||
| bi_packer.c.py | ||
| bi_pressure_schedule.c | ||
| bi_print.c | ||
| bi_print_common.c | ||
| bi_print_common.h | ||
| bi_printer.c.py | ||
| bi_quirks.h | ||
| bi_ra.c | ||
| bi_test.h | ||
| bi_validate.c | ||
| bifrost.h | ||
| bifrost_compile.c | ||
| bifrost_compile.h | ||
| bifrost_isa.py | ||
| bifrost_nir.h | ||
| bifrost_nir_algebraic.py | ||
| bir.c | ||
| cmdline.c | ||
| compiler.h | ||
| gen_disasm.py | ||
| IR_pseudo.xml | ||
| meson.build | ||
| nodearray.h | ||
| Notes.txt | ||
| README.md | ||
Bifrost compiler
Register file
Defined partially in software, partially in hardware.
Blend shaders
R0 - R3: input (color #0) R4 - R7: input (color #1) R8 - R15: general purpose R48: return address
Fragment
Anything live during BLEND must respect blend shader registers.
R0 - R3: preloaded (message #0) R4 - R7: preloaded (message #1) R57 - R63: preloaded (various)
R0 - R15: general purpose (full threads) R48 - R63: general purpose (full threads)
R32 - R47: general purpose (half threads, or v6)