1 /**************************************************************************
2 *
3 * Copyright 2019 Red Hat.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **************************************************************************/
25
26 #ifndef LP_STATE_CS_H
27 #define LP_STATE_CS_H
28
29 #include "os/os_thread.h"
30 #include "util/u_thread.h"
31 #include "pipe/p_state.h"
32
33 #include "gallivm/lp_bld.h"
34 #include "gallivm/lp_bld_sample.h" /* for struct lp_sampler_static_state */
35 #include "lp_jit.h"
36 #include "lp_state_fs.h"
37
38 struct lp_compute_shader_variant;
39
40 struct lp_compute_shader_variant_key
41 {
42 unsigned nr_samplers:8;
43 unsigned nr_sampler_views:8;
44 unsigned nr_images:8;
45 /* followed by variable number of images */
46 struct lp_sampler_static_state samplers[1];
47 };
48
49 #define LP_CS_MAX_VARIANT_KEY_SIZE \
50 (sizeof(struct lp_compute_shader_variant_key) + \
51 PIPE_MAX_SHADER_SAMPLER_VIEWS * sizeof(struct lp_sampler_static_state) +\
52 PIPE_MAX_SHADER_IMAGES * sizeof(struct lp_image_static_state))
53
54 static inline size_t
lp_cs_variant_key_size(unsigned nr_samplers,unsigned nr_images)55 lp_cs_variant_key_size(unsigned nr_samplers, unsigned nr_images)
56 {
57 unsigned samplers = nr_samplers > 1 ? (nr_samplers - 1) : 0;
58 return (sizeof(struct lp_compute_shader_variant_key) +
59 samplers * sizeof(struct lp_sampler_static_state) +
60 nr_images * sizeof(struct lp_image_static_state));
61 }
62
63 static inline struct lp_image_static_state *
lp_cs_variant_key_images(const struct lp_compute_shader_variant_key * key)64 lp_cs_variant_key_images(const struct lp_compute_shader_variant_key *key)
65 {
66 return (struct lp_image_static_state *)
67 &key->samplers[key->nr_samplers];
68 }
69
70 struct lp_cs_variant_list_item
71 {
72 struct lp_compute_shader_variant *base;
73 struct lp_cs_variant_list_item *next, *prev;
74 };
75
76 struct lp_compute_shader_variant
77 {
78 struct gallivm_state *gallivm;
79
80 LLVMTypeRef jit_cs_context_ptr_type;
81 LLVMTypeRef jit_cs_thread_data_ptr_type;
82
83 LLVMValueRef function;
84 lp_jit_cs_func jit_function;
85
86 /* Total number of LLVM instructions generated */
87 unsigned nr_instrs;
88
89 struct lp_cs_variant_list_item list_item_global, list_item_local;
90
91 struct lp_compute_shader *shader;
92
93 /* For debugging/profiling purposes */
94 unsigned no;
95
96 /* key is variable-sized, must be last */
97 struct lp_compute_shader_variant_key key;
98 };
99
100 struct lp_compute_shader {
101 struct pipe_shader_state base;
102
103 struct lp_cs_variant_list_item variants;
104
105 struct lp_tgsi_info info;
106
107 uint32_t req_local_mem;
108
109 /* For debugging/profiling purposes */
110 unsigned variant_key_size;
111 unsigned no;
112 unsigned variants_created;
113 unsigned variants_cached;
114
115 int max_global_buffers;
116 struct pipe_resource **global_buffers;
117 };
118
119 struct lp_cs_exec {
120 struct lp_jit_cs_context jit_context;
121 struct lp_compute_shader_variant *variant;
122 };
123
124 struct lp_cs_context {
125 struct pipe_context *pipe;
126
127 struct {
128 struct lp_cs_exec current;
129 struct pipe_resource *current_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
130 unsigned current_tex_num;
131 } cs;
132
133 /** compute shader constants */
134 struct {
135 struct pipe_constant_buffer current;
136 unsigned stored_size;
137 const void *stored_data;
138 } constants[LP_MAX_TGSI_CONST_BUFFERS];
139
140 /** compute shader buffers */
141 struct {
142 struct pipe_shader_buffer current;
143 } ssbos[LP_MAX_TGSI_SHADER_BUFFERS];
144
145 struct {
146 struct pipe_image_view current;
147 } images[LP_MAX_TGSI_SHADER_IMAGES];
148
149 void *input;
150 };
151
152 struct lp_cs_context *lp_csctx_create(struct pipe_context *pipe);
153 void lp_csctx_destroy(struct lp_cs_context *csctx);
154
155 #endif
156