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nak: Lower system values to a new load_sysval_nak intrinsic

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24998>
This commit is contained in:
Faith Ekstrand 2023-01-30 20:53:17 -06:00 • committed by Marge Bot
parent 481a29a912
commit fb96aaf3fa
1 changed files with 47 additions and 0 deletions
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47
src/nouveau/compiler/nak_nir.c
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@ -263,6 +263,26 @@ nak_sysval_attr_addr(gl_system_value sysval)
}
}
static uint8_t
nak_sysval_sysval_idx(gl_system_value sysval)
{
switch (sysval) {
case SYSTEM_VALUE_SUBGROUP_INVOCATION: return 0x00;
case SYSTEM_VALUE_VERTICES_IN: return 0x10;
case SYSTEM_VALUE_INVOCATION_ID: return 0x11;
case SYSTEM_VALUE_HELPER_INVOCATION: return 0x13;
case SYSTEM_VALUE_LOCAL_INVOCATION_INDEX: return 0x20;
case SYSTEM_VALUE_LOCAL_INVOCATION_ID: return 0x21;
case SYSTEM_VALUE_WORKGROUP_ID: return 0x25;
case SYSTEM_VALUE_SUBGROUP_EQ_MASK: return 0x38;
case SYSTEM_VALUE_SUBGROUP_LT_MASK: return 0x39;
case SYSTEM_VALUE_SUBGROUP_LE_MASK: return 0x3a;
case SYSTEM_VALUE_SUBGROUP_GT_MASK: return 0x3b;
case SYSTEM_VALUE_SUBGROUP_GE_MASK: return 0x3c;
default: unreachable("Invalid system value");
}
}
static bool
nak_nir_lower_system_value_instr(nir_builder *b, nir_instr *instr, void *data)
{
@ -304,6 +324,33 @@ nak_nir_lower_system_value_instr(nir_builder *b, nir_instr *instr, void *data)
break;
}
case nir_intrinsic_load_subgroup_invocation:
case nir_intrinsic_load_patch_vertices_in:
case nir_intrinsic_load_helper_invocation:
case nir_intrinsic_load_local_invocation_index:
case nir_intrinsic_load_local_invocation_id:
case nir_intrinsic_load_workgroup_id:
case nir_intrinsic_load_workgroup_id_zero_base:
case nir_intrinsic_load_subgroup_eq_mask:
case nir_intrinsic_load_subgroup_lt_mask:
case nir_intrinsic_load_subgroup_le_mask:
case nir_intrinsic_load_subgroup_gt_mask:
case nir_intrinsic_load_subgroup_ge_mask: {
const gl_system_value sysval =
intrin->intrinsic == nir_intrinsic_load_workgroup_id_zero_base ?
SYSTEM_VALUE_WORKGROUP_ID :
nir_system_value_from_intrinsic(intrin->intrinsic);
const uint32_t idx = nak_sysval_sysval_idx(sysval);
nir_def *comps[3];
assert(intrin->def.num_components <= 3);
for (unsigned c = 0; c < intrin->def.num_components; c++) {
comps[c] = nir_load_sysval_nv(b, 32, .base = idx + c,
.access = ACCESS_CAN_REORDER);
}
val = nir_vec(b, comps, intrin->def.num_components);
break;
}
default:
return false;
}