1 /* 2 * Copyright 2011 Christoph Bumiller 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, sublicense, 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 shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 * SOFTWARE. 21 */ 22 23 #ifndef __NV50_IR_DRIVER_H__ 24 #define __NV50_IR_DRIVER_H__ 25 26 #include "pipe/p_shader_tokens.h" 27 28 #include "tgsi/tgsi_util.h" 29 #include "tgsi/tgsi_parse.h" 30 #include "tgsi/tgsi_scan.h" 31 32 /* 33 * This struct constitutes linkage information in TGSI terminology. 34 * 35 * It is created by the code generator and handed to the pipe driver 36 * for input/output slot assignment. 37 */ 38 struct nv50_ir_varying 39 { 40 uint8_t slot[4]; /* native slots for xyzw (addresses in 32-bit words) */ 41 42 unsigned mask : 4; /* vec4 mask */ 43 unsigned linear : 1; /* linearly interpolated if true (and not flat) */ 44 unsigned flat : 1; 45 unsigned sc : 1; /* special colour interpolation mode (SHADE_MODEL) */ 46 unsigned centroid : 1; 47 unsigned patch : 1; /* patch constant value */ 48 unsigned regular : 1; /* driver-specific meaning (e.g. input in sreg) */ 49 unsigned input : 1; /* indicates direction of system values */ 50 unsigned oread : 1; /* true if output is read from parallel TCP */ 51 52 ubyte id; /* TGSI register index */ 53 ubyte sn; /* TGSI semantic name */ 54 ubyte si; /* TGSI semantic index */ 55 }; 56 57 #define NV50_PROGRAM_IR_TGSI 0 58 #define NV50_PROGRAM_IR_SM4 1 59 #define NV50_PROGRAM_IR_GLSL 2 60 #define NV50_PROGRAM_IR_LLVM 3 61 62 #ifdef DEBUG 63 # define NV50_IR_DEBUG_BASIC (1 << 0) 64 # define NV50_IR_DEBUG_VERBOSE (2 << 0) 65 # define NV50_IR_DEBUG_REG_ALLOC (1 << 2) 66 #else 67 # define NV50_IR_DEBUG_BASIC 0 68 # define NV50_IR_DEBUG_VERBOSE 0 69 # define NV50_IR_DEBUG_REG_ALLOC 0 70 #endif 71 72 #define NV50_SEMANTIC_CLIPDISTANCE (TGSI_SEMANTIC_COUNT + 0) 73 #define NV50_SEMANTIC_TEXCOORD (TGSI_SEMANTIC_COUNT + 1) 74 #define NV50_SEMANTIC_POINTCOORD (TGSI_SEMANTIC_COUNT + 2) 75 #define NV50_SEMANTIC_VIEWPORTINDEX (TGSI_SEMANTIC_COUNT + 4) 76 #define NV50_SEMANTIC_LAYER (TGSI_SEMANTIC_COUNT + 5) 77 #define NV50_SEMANTIC_INVOCATIONID (TGSI_SEMANTIC_COUNT + 6) 78 #define NV50_SEMANTIC_TESSFACTOR (TGSI_SEMANTIC_COUNT + 7) 79 #define NV50_SEMANTIC_TESSCOORD (TGSI_SEMANTIC_COUNT + 8) 80 #define NV50_SEMANTIC_SAMPLEMASK (TGSI_SEMANTIC_COUNT + 9) 81 #define NV50_SEMANTIC_COUNT (TGSI_SEMANTIC_COUNT + 10) 82 83 #define NV50_TESS_PART_FRACT_ODD 0 84 #define NV50_TESS_PART_FRACT_EVEN 1 85 #define NV50_TESS_PART_POW2 2 86 #define NV50_TESS_PART_INTEGER 3 87 88 #define NV50_PRIM_PATCHES PIPE_PRIM_MAX 89 90 struct nv50_ir_prog_symbol 91 { 92 uint32_t label; 93 uint32_t offset; 94 }; 95 96 struct nv50_ir_prog_info 97 { 98 uint16_t target; /* chipset (0x50, 0x84, 0xc0, ...) */ 99 100 uint8_t type; /* PIPE_SHADER */ 101 102 uint8_t optLevel; /* optimization level (0 to 3) */ 103 uint8_t dbgFlags; 104 105 struct { 106 int16_t maxGPR; /* may be -1 if none used */ 107 int16_t maxOutput; 108 uint32_t tlsSpace; /* required local memory per thread */ 109 uint32_t *code; 110 uint32_t codeSize; 111 uint8_t sourceRep; /* NV50_PROGRAM_IR */ 112 const void *source; 113 void *relocData; 114 struct nv50_ir_prog_symbol *syms; 115 uint16_t numSyms; 116 } bin; 117 118 struct nv50_ir_varying sv[PIPE_MAX_SHADER_INPUTS]; 119 struct nv50_ir_varying in[PIPE_MAX_SHADER_INPUTS]; 120 struct nv50_ir_varying out[PIPE_MAX_SHADER_OUTPUTS]; 121 uint8_t numInputs; 122 uint8_t numOutputs; 123 uint8_t numPatchConstants; /* also included in numInputs/numOutputs */ 124 uint8_t numSysVals; 125 126 struct { 127 uint32_t *buf; /* for IMMEDIATE_ARRAY */ 128 uint16_t bufSize; /* size of immediate array */ 129 uint16_t count; /* count of inline immediates */ 130 uint32_t *data; /* inline immediate data */ 131 uint8_t *type; /* for each vec4 (128 bit) */ 132 } immd; 133 134 union { 135 struct { 136 uint32_t inputMask[4]; /* mask of attributes read (1 bit per scalar) */ 137 } vp; 138 struct { 139 uint8_t inputPatchSize; 140 uint8_t outputPatchSize; 141 uint8_t partitioning; /* PIPE_TESS_PART */ 142 int8_t winding; /* +1 (clockwise) / -1 (counter-clockwise) */ 143 uint8_t domain; /* PIPE_PRIM_{QUADS,TRIANGLES,LINES} */ 144 uint8_t outputPrim; /* PIPE_PRIM_{TRIANGLES,LINES,POINTS} */ 145 } tp; 146 struct { 147 uint8_t inputPrim; 148 uint8_t outputPrim; 149 unsigned instanceCount; 150 unsigned maxVertices; 151 } gp; 152 struct { 153 unsigned numColourResults; 154 boolean writesDepth; 155 boolean earlyFragTests; 156 boolean separateFragData; 157 boolean usesDiscard; 158 } fp; 159 } prop; 160 161 struct { 162 uint8_t clipDistance; /* index of first clip distance output */ 163 uint8_t clipDistanceMask; /* mask of clip distances defined */ 164 uint8_t cullDistanceMask; /* clip distance mode (1 bit per output) */ 165 int8_t genUserClip; /* request user clip planes for ClipVertex */ 166 uint16_t ucpBase; /* base address for UCPs */ 167 uint8_t ucpBinding; /* constant buffer index of UCP data */ 168 uint8_t pointSize; /* output index for PointSize */ 169 uint8_t instanceId; /* system value index of InstanceID */ 170 uint8_t vertexId; /* system value index of VertexID */ 171 uint8_t edgeFlagIn; 172 uint8_t edgeFlagOut; 173 uint8_t fragDepth; /* output index of FragDepth */ 174 uint8_t sampleMask; /* output index of SampleMask */ 175 uint8_t backFaceColor[2]; /* input/output indices of back face colour */ 176 uint8_t globalAccess; /* 1 for read, 2 for wr, 3 for rw */ 177 } io; 178 179 /* driver callback to assign input/output locations */ 180 int (*assignSlots)(struct nv50_ir_prog_info *); 181 182 void *driverPriv; 183 }; 184 185 #ifdef __cplusplus 186 extern "C" { 187 #endif 188 189 extern int nv50_ir_generate_code(struct nv50_ir_prog_info *); 190 191 extern void nv50_ir_relocate_code(void *relocData, uint32_t *code, 192 uint32_t codePos, 193 uint32_t libPos, 194 uint32_t dataPos); 195 196 /* obtain code that will be shared among programs */ 197 extern void nv50_ir_get_target_library(uint32_t chipset, 198 const uint32_t **code, uint32_t *size); 199 200 #ifdef __cplusplus 201 } 202 #endif 203 204 #endif // __NV50_IR_DRIVER_H__ 205