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ac/nir/tess: Map linked LS/HS I/O based on TCS input mask.

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With this change, LS/HS linking will not rely on driver locations
anymore (driver locations are considered deprecated in NIR).

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29812>
This commit is contained in:
Timur Kristóf 2024-06-20 17:19:43 +02:00 • committed by Marge Bot
parent b162c7962f
commit d758bea8dd
1 changed files with 5 additions and 2 deletions
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7
src/amd/common/ac_nir_lower_tess_io_to_mem.c
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@ -286,7 +286,8 @@ lower_ls_output_store(nir_builder *b,
nir_def *vertex_idx = nir_load_local_invocation_index(b);
nir_def *base_off_var = nir_imul(b, vertex_idx, nir_load_lshs_vertex_stride_amd(b));
nir_def *io_off = ac_nir_calc_io_offset(b, intrin, nir_imm_int(b, 16u), 4u, st->map_io);
unsigned mapped = ac_nir_map_io_location(io_sem.location, st->tcs_inputs_read, st->map_io);
nir_def *io_off = ac_nir_calc_io_offset_mapped(b, intrin, nir_imm_int(b, 16u), 4u, mapped);
unsigned write_mask = nir_intrinsic_write_mask(intrin);
nir_def *off = nir_iadd_nuw(b, base_off_var, io_off);
@ -346,7 +347,9 @@ hs_per_vertex_input_lds_offset(nir_builder *b,
nir_def *tcs_in_current_patch_offset = nir_imul(b, rel_patch_id, tcs_in_patch_stride);
nir_def *io_offset = ac_nir_calc_io_offset(b, instr, nir_imm_int(b, 16u), 4u, st->map_io);
const nir_io_semantics io_sem = nir_intrinsic_io_semantics(instr);
const unsigned mapped = ac_nir_map_io_location(io_sem.location, st->tcs_inputs_read, st->map_io);
nir_def *io_offset = ac_nir_calc_io_offset_mapped(b, instr, nir_imm_int(b, 16u), 4u, mapped);
return nir_iadd_nuw(b, nir_iadd_nuw(b, tcs_in_current_patch_offset, vertex_index_off), io_offset);
}