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nvk/lower_descriptors: Drop buffer_address_to_ldcx_handle()

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It's a remnant of older bindless cbuf attempts and is never called.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35268>
This commit is contained in:
Faith Ekstrand 2025-05-30 23:47:52 -04:00 • committed by Marge Bot
parent 64a3ab35a9
commit 6bea7caddb
1 changed files with 0 additions and 23 deletions
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23
src/nouveau/vulkan/nvk_nir_lower_descriptors.c
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@ -711,29 +711,6 @@ is_idx_intrin(nir_intrinsic_instr *intrin)
return intrin->intrinsic == nir_intrinsic_vulkan_resource_index;
}
static nir_def *
buffer_address_to_ldcx_handle(nir_builder *b, nir_def *addr)
{
nir_def *base_addr = nir_pack_64_2x32(b, nir_channels(b, addr, 0x3));
nir_def *size = nir_channel(b, addr, 2);
nir_def *offset = nir_channel(b, addr, 3);
nir_def *addr16 = nir_ushr_imm(b, base_addr, 4);
nir_def *addr16_lo = nir_unpack_64_2x32_split_x(b, addr16);
nir_def *addr16_hi = nir_unpack_64_2x32_split_y(b, addr16);
/* If we assume the top bis of the address are 0 as well as the bottom two
* bits of the size. (We can trust it since it's a descriptor) then
*
* ((size >> 4) << 13) | addr
*
* is just an imad.
*/
nir_def *handle_hi = nir_imad(b, size, nir_imm_int(b, 1 << 9), addr16_hi);
return nir_vec3(b, addr16_lo, handle_hi, offset);
}
static nir_def *
load_descriptor_for_idx_intrin(nir_builder *b, nir_intrinsic_instr *intrin,
const struct lower_descriptors_ctx *ctx)