ac_nir.h revision 7ec681f3 
1/*
2 * Copyright © 2021 Valve 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
25
26#ifndef AC_NIR_H
27#define AC_NIR_H
28
29#include "nir.h"
30#include "ac_shader_args.h"
31#include "ac_shader_util.h"
32#include "amd_family.h"
33
34#ifdef __cplusplus
35extern "C" {
36#endif
37
38/* Forward declaration of nir_builder so we don't have to include nir_builder.h here */
39struct nir_builder;
40typedef struct nir_builder nir_builder;
41
42void
43ac_nir_lower_ls_outputs_to_mem(nir_shader *ls,
44                               bool tcs_in_out_eq,
45                               uint64_t tcs_temp_only_inputs,
46                               unsigned num_reserved_ls_outputs);
47
48void
49ac_nir_lower_hs_inputs_to_mem(nir_shader *shader,
50                              bool tcs_in_out_eq,
51                              unsigned num_reserved_tcs_inputs);
52
53void
54ac_nir_lower_hs_outputs_to_mem(nir_shader *shader,
55                               enum chip_class chip_class,
56                               bool tes_reads_tessfactors,
57                               uint64_t tes_inputs_read,
58                               uint64_t tes_patch_inputs_read,
59                               unsigned num_reserved_tcs_inputs,
60                               unsigned num_reserved_tcs_outputs,
61                               unsigned num_reserved_tcs_patch_outputs,
62                               bool emit_tess_factor_write);
63
64void
65ac_nir_lower_tes_inputs_to_mem(nir_shader *shader,
66                               unsigned num_reserved_tcs_outputs,
67                               unsigned num_reserved_tcs_patch_outputs);
68
69enum ac_nir_tess_to_const_options {
70    ac_nir_lower_patch_vtx_in = 1 << 0,
71    ac_nir_lower_num_patches = 1 << 1,
72};
73
74void
75ac_nir_lower_tess_to_const(nir_shader *shader,
76                           unsigned patch_vtx_in,
77                           unsigned tcs_num_patches,
78                           unsigned options);
79
80void
81ac_nir_lower_es_outputs_to_mem(nir_shader *shader,
82                               enum chip_class chip_class,
83                               unsigned num_reserved_es_outputs);
84
85void
86ac_nir_lower_gs_inputs_to_mem(nir_shader *shader,
87                              enum chip_class chip_class,
88                              unsigned num_reserved_es_outputs);
89
90bool
91ac_nir_lower_indirect_derefs(nir_shader *shader,
92                             enum chip_class chip_class);
93
94void
95ac_nir_lower_ngg_nogs(nir_shader *shader,
96                      unsigned max_num_es_vertices,
97                      unsigned num_vertices_per_primitive,
98                      unsigned max_workgroup_size,
99                      unsigned wave_size,
100                      bool can_cull,
101                      bool early_prim_export,
102                      bool passthrough,
103                      bool export_prim_id,
104                      bool provoking_vtx_last,
105                      bool use_edgeflags,
106                      uint32_t instance_rate_inputs);
107
108void
109ac_nir_lower_ngg_gs(nir_shader *shader,
110                    unsigned wave_size,
111                    unsigned max_workgroup_size,
112                    unsigned esgs_ring_lds_bytes,
113                    unsigned gs_out_vtx_bytes,
114                    unsigned gs_total_out_vtx_bytes,
115                    bool provoking_vtx_last);
116
117nir_ssa_def *
118ac_nir_cull_triangle(nir_builder *b,
119                     nir_ssa_def *initially_accepted,
120                     nir_ssa_def *pos[3][4]);
121
122#ifdef __cplusplus
123}
124#endif
125
126#endif /* AC_NIR_H */
127