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 (at) 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 36 /* XXX some of these are pretty arbitrary limits, may be better to switch 37 * to dynamic allocation at some point. 38 */ 39 #define ETNA_MAX_TEMPS (64) /* max temp register count of all Vivante hw */ 40 #define ETNA_MAX_TOKENS (2048) 41 #define ETNA_MAX_IMM (1024) /* max const+imm in 32-bit words */ 42 #define ETNA_MAX_DECL (2048) /* max declarations */ 43 #define ETNA_MAX_DEPTH (32) 44 #define ETNA_MAX_INSTRUCTIONS (2048) 45 46 /* compiler output per input/output */ 47 struct etna_shader_inout { 48 int reg; /* native register */ 49 struct tgsi_declaration_semantic semantic; /* tgsi semantic name and index */ 50 int num_components; 51 }; 52 53 struct etna_shader_io_file { 54 size_t num_reg; 55 struct etna_shader_inout reg[ETNA_NUM_INPUTS]; 56 }; 57 58 /* shader object, for linking */ 59 struct etna_shader_variant { 60 uint32_t id; /* for debug */ 61 62 uint processor; /* TGSI_PROCESSOR_... */ 63 uint32_t code_size; /* code size in uint32 words */ 64 uint32_t *code; 65 unsigned num_loops; 66 unsigned num_temps; 67 68 struct etna_shader_uniform_info uniforms; 69 70 /* ETNA_DIRTY_* flags that, when set in context dirty, mean that the 71 * uniforms have to get (partial) reloaded. */ 72 uint32_t uniforms_dirty_bits; 73 74 /* inputs (for linking) for fs, the inputs must be in register 1..N */ 75 struct etna_shader_io_file infile; 76 77 /* outputs (for linking) */ 78 struct etna_shader_io_file outfile; 79 80 /* index into outputs (for linking) */ 81 int output_count_per_semantic[TGSI_SEMANTIC_COUNT]; 82 struct etna_shader_inout * *output_per_semantic_list; /* list of pointers to outputs */ 83 struct etna_shader_inout **output_per_semantic[TGSI_SEMANTIC_COUNT]; 84 85 /* special outputs (vs only) */ 86 int vs_pos_out_reg; /* VS position output */ 87 int vs_pointsize_out_reg; /* VS point size output */ 88 uint32_t vs_load_balancing; 89 90 /* special outputs (ps only) */ 91 int ps_color_out_reg; /* color output register */ 92 int ps_depth_out_reg; /* depth output register */ 93 94 /* unknown input property (XX_INPUT_COUNT, field UNK8) */ 95 uint32_t input_count_unk8; 96 97 /* shader is larger than GPU instruction limit, thus needs icache */ 98 bool needs_icache; 99 100 /* shader variants form a linked list */ 101 struct etna_shader_variant *next; 102 103 /* replicated here to avoid passing extra ptrs everywhere */ 104 struct etna_shader *shader; 105 struct etna_shader_key key; 106 107 struct etna_bo *bo; /* cached code memory bo handle (for icache) */ 108 }; 109 110 struct etna_varying { 111 uint32_t pa_attributes; 112 uint8_t num_components; 113 uint8_t use[4]; 114 uint8_t reg; 115 }; 116 117 struct etna_shader_link_info { 118 /* each PS input is annotated with the VS output reg */ 119 unsigned num_varyings; 120 struct etna_varying varyings[ETNA_NUM_INPUTS]; 121 int pcoord_varying_comp_ofs; 122 }; 123 124 bool 125 etna_compile_shader(struct etna_shader_variant *shader); 126 127 void 128 etna_dump_shader(const struct etna_shader_variant *shader); 129 130 bool 131 etna_link_shader(struct etna_shader_link_info *info, 132 const struct etna_shader_variant *vs, const struct etna_shader_variant *fs); 133 134 void 135 etna_destroy_shader(struct etna_shader_variant *shader); 136 137 #endif 138
