1 /* -*- mesa-c++ -*-
2 *
3 * Copyright (c) 2019 Collabora LTD
4 *
5 * Author: Gert Wollny <gert.wollny@collabora.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * on the rights to use, copy, modify, merge, publish, distribute, sub
11 * license, and/or sell copies of the Software, and to permit persons to whom
12 * the Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the next
15 * paragraph) shall be included in all copies or substantial portions of the
16 * Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 */
26
27 #ifndef SFN_NIR_H
28 #define SFN_NIR_H
29
30 #include "nir.h"
31 #include "nir_builder.h"
32
33 #ifdef __cplusplus
34 #include "sfn_shader_base.h"
35 #include <vector>
36
37 namespace r600 {
38
39 class NirLowerInstruction {
40 public:
41 NirLowerInstruction();
42
43 bool run(nir_shader *shader);
44
45 private:
46 static bool filter_instr(const nir_instr *instr, const void *data);
47 static nir_ssa_def *lower_instr(nir_builder *b, nir_instr *instr, void *data);
48
set_builder(nir_builder * _b)49 void set_builder(nir_builder *_b) { b = _b;}
50
51 virtual bool filter(const nir_instr *instr) const = 0;
52 virtual nir_ssa_def *lower(nir_instr *instr) = 0;
53 protected:
54 nir_builder *b;
55 };
56
57 bool r600_lower_scratch_addresses(nir_shader *shader);
58
59 bool r600_lower_ubo_to_align16(nir_shader *shader);
60
61 bool r600_nir_split_64bit_io(nir_shader *sh);
62
63 bool r600_nir_64_to_vec2(nir_shader *sh);
64
65 bool r600_merge_vec2_stores(nir_shader *shader);
66
67 class Shader {
68 public:
69 std::vector<InstructionBlock>& m_ir;
70 ValueMap m_temp;
71 };
72
73 class ShaderFromNir {
74 public:
75 ShaderFromNir();
76 ~ShaderFromNir();
77
78 unsigned ninputs() const;
79
80 bool lower(const nir_shader *shader, r600_pipe_shader *sh,
81 r600_pipe_shader_selector *sel, r600_shader_key &key,
82 r600_shader *gs_shader, enum chip_class chip_class);
83
84 bool process_declaration();
85
86 pipe_shader_type processor_type() const;
87
88 bool emit_instruction(nir_instr *instr);
89
90 const std::vector<InstructionBlock> &shader_ir() const;
91
92 Shader shader() const;
93 private:
94
95 bool process_block();
96 bool process_cf_node(nir_cf_node *node);
97 bool process_if(nir_if *node);
98 bool process_loop(nir_loop *node);
99 bool process_block(nir_block *node);
100
101 std::unique_ptr<ShaderFromNirProcessor> impl;
102 const nir_shader *sh;
103
104 enum chip_class chip_class;
105 int m_current_if_id;
106 int m_current_loop_id;
107 std::stack<int> m_if_stack;
108 int scratch_size;
109 };
110
111 class AssemblyFromShader {
112 public:
113 virtual ~AssemblyFromShader();
114 bool lower(const std::vector<InstructionBlock> &ir);
115 private:
116 virtual bool do_lower(const std::vector<InstructionBlock>& ir) = 0 ;
117 };
118
119 }
120
121 static inline nir_ssa_def *
r600_imm_ivec3(nir_builder * build,int x,int y,int z)122 r600_imm_ivec3(nir_builder *build, int x, int y, int z)
123 {
124 nir_const_value v[3] = {
125 nir_const_value_for_int(x, 32),
126 nir_const_value_for_int(y, 32),
127 nir_const_value_for_int(z, 32),
128 };
129
130 return nir_build_imm(build, 3, 32, v);
131 }
132
133 bool r600_lower_tess_io(nir_shader *shader, enum pipe_prim_type prim_type);
134 bool r600_append_tcs_TF_emission(nir_shader *shader, enum pipe_prim_type prim_type);
135 bool r600_lower_tess_coord(nir_shader *sh, enum pipe_prim_type prim_type);
136
137 bool
138 r600_legalize_image_load_store(nir_shader *shader);
139
140
141 #else
142 #include "gallium/drivers/r600/r600_shader.h"
143 #endif
144
145 #ifdef __cplusplus
146 extern "C" {
147 #endif
148
149 bool r600_vectorize_vs_inputs(nir_shader *shader);
150
151 bool r600_lower_to_scalar_instr_filter(const nir_instr *instr, const void *);
152
153 int r600_shader_from_nir(struct r600_context *rctx,
154 struct r600_pipe_shader *pipeshader,
155 union r600_shader_key *key);
156
157 #ifdef __cplusplus
158 }
159 #endif
160
161
162 #endif // SFN_NIR_H
163