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 };
46
47 #define LP_CS_MAX_VARIANT_KEY_SIZE \
48 (sizeof(struct lp_compute_shader_variant_key) + \
49 PIPE_MAX_SHADER_SAMPLER_VIEWS * sizeof(struct lp_sampler_static_state) + \
50 PIPE_MAX_SHADER_IMAGES * sizeof(struct lp_image_static_state))
51
52 static inline size_t
lp_cs_variant_key_size(unsigned nr_samplers,unsigned nr_images)53 lp_cs_variant_key_size(unsigned nr_samplers, unsigned nr_images)
54 {
55 return (sizeof(struct lp_compute_shader_variant_key) +
56 nr_samplers * sizeof(struct lp_sampler_static_state) +
57 nr_images * sizeof(struct lp_image_static_state));
58 }
59
60 static inline struct lp_sampler_static_state *
lp_cs_variant_key_samplers(const struct lp_compute_shader_variant_key * key)61 lp_cs_variant_key_samplers(const struct lp_compute_shader_variant_key *key)
62 {
63 return (struct lp_sampler_static_state *)&(key[1]);
64 }
65
66 static inline struct lp_image_static_state *
lp_cs_variant_key_images(const struct lp_compute_shader_variant_key * key)67 lp_cs_variant_key_images(const struct lp_compute_shader_variant_key *key)
68 {
69 return (struct lp_image_static_state *)
70 &(lp_cs_variant_key_samplers(key)[key->nr_samplers]);
71 }
72
73 struct lp_cs_variant_list_item
74 {
75 struct lp_compute_shader_variant *base;
76 struct lp_cs_variant_list_item *next, *prev;
77 };
78
79 struct lp_compute_shader_variant
80 {
81 struct gallivm_state *gallivm;
82
83 LLVMTypeRef jit_cs_context_ptr_type;
84 LLVMTypeRef jit_cs_thread_data_ptr_type;
85
86 LLVMValueRef function;
87 lp_jit_cs_func jit_function;
88
89 /* Total number of LLVM instructions generated */
90 unsigned nr_instrs;
91
92 struct lp_cs_variant_list_item list_item_global, list_item_local;
93
94 struct lp_compute_shader *shader;
95
96 /* For debugging/profiling purposes */
97 unsigned no;
98
99 /* key is variable-sized, must be last */
100 struct lp_compute_shader_variant_key key;
101 };
102
103 struct lp_compute_shader {
104 struct pipe_shader_state base;
105
106 struct lp_cs_variant_list_item variants;
107
108 struct lp_tgsi_info info;
109
110 uint32_t req_local_mem;
111
112 /* For debugging/profiling purposes */
113 unsigned variant_key_size;
114 unsigned no;
115 unsigned variants_created;
116 unsigned variants_cached;
117
118 int max_global_buffers;
119 struct pipe_resource **global_buffers;
120 };
121
122 struct lp_cs_exec {
123 struct lp_jit_cs_context jit_context;
124 struct lp_compute_shader_variant *variant;
125 };
126
127 struct lp_cs_context {
128 struct pipe_context *pipe;
129
130 struct {
131 struct lp_cs_exec current;
132 struct pipe_resource *current_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
133 unsigned current_tex_num;
134 } cs;
135
136 /** compute shader constants */
137 struct {
138 struct pipe_constant_buffer current;
139 unsigned stored_size;
140 const void *stored_data;
141 } constants[LP_MAX_TGSI_CONST_BUFFERS];
142
143 /** compute shader buffers */
144 struct {
145 struct pipe_shader_buffer current;
146 } ssbos[LP_MAX_TGSI_SHADER_BUFFERS];
147
148 struct {
149 struct pipe_image_view current;
150 } images[LP_MAX_TGSI_SHADER_IMAGES];
151
152 void *input;
153 };
154
155 struct lp_cs_context *lp_csctx_create(struct pipe_context *pipe);
156 void lp_csctx_destroy(struct lp_cs_context *csctx);
157
158 #endif
159