1 /* 2 * Copyright (c) 2012-2015 Etnaviv Project 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, sub license, 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 12 * next paragraph) shall be included in all copies or substantial portions 13 * of the 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 NON-INFRINGEMENT. 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 21 * DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: 24 * Wladimir J. van der Laan <laanwj@gmail.com> 25 */ 26 27 #ifndef H_ETNAVIV_COMPILER 28 #define H_ETNAVIV_COMPILER 29 30 #include "etnaviv_context.h" 31 #include "etnaviv_internal.h" 32 #include "etnaviv_shader.h" 33 #include "pipe/p_compiler.h" 34 #include "pipe/p_shader_tokens.h" 35 #include "compiler/shader_enums.h" 36 #include "util/disk_cache.h" 37 38 /* XXX some of these are pretty arbitrary limits, may be better to switch 39 * to dynamic allocation at some point. 40 */ 41 #define ETNA_MAX_TEMPS (64) /* max temp register count of all Vivante hw */ 42 #define ETNA_MAX_TOKENS (2048) 43 #define ETNA_MAX_IMM (1024) /* max const+imm in 32-bit words */ 44 #define ETNA_MAX_DEPTH (32) 45 #define ETNA_MAX_INSTRUCTIONS (2048) 46 47 /** 48 * Compiler state saved across compiler invocations, for any expensive global 49 * setup. 50 */ 51 struct etna_compiler { 52 uint32_t shader_count; 53 struct ra_regs *regs; 54 55 nir_shader_compiler_options options; 56 struct disk_cache *disk_cache; 57 }; 58 59 /* compiler output per input/output */ 60 struct etna_shader_inout { 61 int reg; /* native register */ 62 int slot; /* nir: gl_varying_slot or gl_vert_attrib */ 63 int num_components; 64 }; 65 66 struct etna_shader_io_file { 67 size_t num_reg; 68 struct etna_shader_inout reg[ETNA_NUM_INPUTS]; 69 }; 70 71 /* shader object, for linking */ 72 struct etna_shader_variant { 73 uint32_t id; /* for debug */ 74 75 /* shader variants form a linked list */ 76 struct etna_shader_variant *next; 77 78 /* replicated here to avoid passing extra ptrs everywhere */ 79 struct etna_shader *shader; 80 struct etna_shader_key key; 81 82 struct etna_bo *bo; /* cached code memory bo handle (for icache) */ 83 84 /* 85 * Below here is serialized when written to disk cache: 86 */ 87 uint32_t *code; 88 struct etna_shader_uniform_info uniforms; 89 90 /* 91 * The following macros are used by the shader disk cache save/ 92 * restore paths to serialize/deserialize the variant. Any 93 * pointers that require special handling in store_variant() 94 * and retrieve_variant() should go above here. 95 */ 96 #define VARIANT_CACHE_START offsetof(struct etna_shader_variant, stage) 97 #define VARIANT_CACHE_PTR(v) (((char *)v) + VARIANT_CACHE_START) 98 #define VARIANT_CACHE_SIZE (sizeof(struct etna_shader_variant) - VARIANT_CACHE_START) 99 100 gl_shader_stage stage; 101 uint32_t code_size; /* code size in uint32 words */ 102 unsigned num_loops; 103 unsigned num_temps; 104 105 /* ETNA_DIRTY_* flags that, when set in context dirty, mean that the 106 * uniforms have to get (partial) reloaded. */ 107 uint32_t uniforms_dirty_bits; 108 109 /* inputs (for linking) for fs, the inputs must be in register 1..N */ 110 struct etna_shader_io_file infile; 111 112 /* outputs (for linking) */ 113 struct etna_shader_io_file outfile; 114 115 /* special inputs/outputs (vs only) */ 116 int vs_id_in_reg; /* vertexid+instanceid input */ 117 int vs_pos_out_reg; /* VS position output */ 118 int vs_pointsize_out_reg; /* VS point size output */ 119 uint32_t vs_load_balancing; 120 121 /* special outputs (ps only) */ 122 int ps_color_out_reg; /* color output register */ 123 int ps_depth_out_reg; /* depth output register */ 124 125 /* unknown input property (XX_INPUT_COUNT, field UNK8) */ 126 uint32_t input_count_unk8; 127 128 /* shader is larger than GPU instruction limit, thus needs icache */ 129 bool needs_icache; 130 131 /* shader uses pixel kill/discard */ 132 bool uses_discard; 133 }; 134 135 struct etna_varying { 136 uint32_t pa_attributes; 137 uint8_t num_components; 138 uint8_t use[4]; 139 uint8_t reg; 140 }; 141 142 struct etna_shader_link_info { 143 /* each PS input is annotated with the VS output reg */ 144 unsigned num_varyings; 145 struct etna_varying varyings[ETNA_NUM_INPUTS]; 146 int pcoord_varying_comp_ofs; 147 }; 148 149 struct etna_compiler * 150 etna_compiler_create(const char *renderer, const struct etna_specs *specs); 151 152 void 153 etna_compiler_destroy(const struct etna_compiler *compiler); 154 155 const nir_shader_compiler_options * 156 etna_compiler_get_options(struct etna_compiler *compiler); 157 158 bool 159 etna_compile_shader(struct etna_shader_variant *shader); 160 161 void 162 etna_dump_shader(const struct etna_shader_variant *shader); 163 164 bool 165 etna_link_shader(struct etna_shader_link_info *info, 166 const struct etna_shader_variant *vs, 167 const struct etna_shader_variant *fs); 168 169 void 170 etna_destroy_shader(struct etna_shader_variant *shader); 171 172 #endif 173