1 /*
2 * Copyright (c) 2024 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include "intel_nir.h"
25 #include "compiler/nir/nir_builder.h"
26 #include "brw_compiler.h"
27
28 static bool
lower_printf_intrinsics(nir_builder * b,nir_instr * instr,void * cb_data)29 lower_printf_intrinsics(nir_builder *b, nir_instr *instr, void *cb_data)
30 {
31 if (instr->type != nir_instr_type_intrinsic)
32 return false;
33
34 b->cursor = nir_before_instr(instr);
35
36 nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr);
37 switch (intrin->intrinsic) {
38 case nir_intrinsic_load_printf_buffer_address:
39 nir_def_rewrite_uses(
40 &intrin->def,
41 nir_pack_64_2x32_split(
42 b,
43 nir_load_reloc_const_intel(b, BRW_SHADER_RELOC_PRINTF_BUFFER_ADDR_LOW),
44 nir_load_reloc_const_intel(b, BRW_SHADER_RELOC_PRINTF_BUFFER_ADDR_HIGH)));
45 nir_instr_remove(instr);
46 return true;
47
48 case nir_intrinsic_load_printf_base_identifier:
49 nir_def_rewrite_uses(
50 &intrin->def,
51 nir_load_reloc_const_intel(b, BRW_SHADER_RELOC_PRINTF_BASE_IDENTIFIER));
52 nir_instr_remove(instr);
53 return true;
54
55 default:
56 return false;
57 }
58 }
59
60 bool
intel_nir_lower_printf(nir_shader * nir)61 intel_nir_lower_printf(nir_shader *nir)
62 {
63 return nir_shader_instructions_pass(nir, lower_printf_intrinsics,
64 nir_metadata_control_flow,
65 NULL);
66 }
67