src/gallium/drivers/nouveau/nouveau_compiler.c

   1 /*
   2  * Copyright 2014 Ilia Mirkin
   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 OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #include <errno.h>
  24
  25 #include "tgsi/tgsi_text.h"
  26 #include "util/u_debug.h"
  27
  28 #include "codegen/nv50_ir_driver.h"
  29 #include "nv50/nv50_context.h"
  30
  31 /* these headers weren't really meant to be included together */
  32 #undef SB_DATA
  33
  34 #include "nv30/nv30_state.h"
  35 #include "nv30/nvfx_shader.h"
  36
  37 static int
  38 nv30_fp(int chipset, struct tgsi_token tokens[],
  39         unsigned *size, unsigned **code) {
  40    struct nv30_fragprog fp;
  41    memset(&fp, 0, sizeof(fp));
  42    fp.pipe.tokens = tokens;
  43    tgsi_scan_shader(fp.pipe.tokens, &fp.info);
  44    _nvfx_fragprog_translate(chipset >= 0x40 ? 0x4097 : 0x3097, &fp);
  45    *size = fp.insn_len * 4;
  46    *code = fp.insn;
  47    return !fp.translated;
  48 }
  49
  50 static int
  51 nv30_vp(int chipset, struct tgsi_token tokens[],
  52         unsigned *size, unsigned **code) {
  53    struct nv30_vertprog vp;
  54    memset(&vp, 0, sizeof(vp));
  55
  56    vp.pipe.tokens = tokens;
  57    tgsi_scan_shader(vp.pipe.tokens, &vp.info);
  58    _nvfx_vertprog_translate(chipset >= 0x40 ? 0x4097 : 0x3097, &vp);
  59    *size = vp.nr_insns * 16;
  60    *code = (unsigned *)vp.insns;
  61    return !vp.translated;
  62 }
  63
  64 static int
  65 nv30_codegen(int chipset, int type, struct tgsi_token tokens[],
  66              unsigned *size, unsigned **code) {
  67    switch (type) {
  68       case PIPE_SHADER_FRAGMENT:
  69          return nv30_fp(chipset, tokens, size, code);
  70       case PIPE_SHADER_VERTEX:
  71          return nv30_vp(chipset, tokens, size, code);
  72    }
  73    _debug_printf("Unexpected shader type: %d\n", type);
  74    return 1;
  75 }
  76
  77 static int
  78 dummy_assign_slots(struct nv50_ir_prog_info *info)
  79 {
  80    unsigned i, n, c;
  81
  82    n = 0;
  83    for (i = 0; i < info->numInputs; ++i) {
  84       for (c = 0; c < 4; ++c)
  85          if (info->in[i].mask & (1 << c))
  86             info->in[i].slot[c] = n++;
  87    }
  88
  89    /* VertexID before InstanceID */
  90    if (info->io.vertexId < info->numSysVals)
  91       info->sv[info->io.vertexId].slot[0] = n++;
  92    if (info->io.instanceId < info->numSysVals)
  93       info->sv[info->io.instanceId].slot[0] = n++;
  94
  95    n = 0;
  96    for (i = 0; i < info->numOutputs; ++i) {
  97       for (c = 0; c < 4; ++c)
  98          if (info->out[i].mask & (1 << c))
  99             info->out[i].slot[c] = n++;
 100    }
 101    return 0;
 102 }
 103
 104 static int
 105 nouveau_codegen(int chipset, int type, struct tgsi_token tokens[],
 106                 unsigned *size, unsigned **code) {
 107    struct nv50_ir_prog_info info = {0};
 108    int ret;
 109
 110    info.type = type;
 111    info.target = chipset;
 112    info.bin.sourceRep = NV50_PROGRAM_IR_TGSI;
 113    info.bin.source = tokens;
 114
 115    info.io.auxCBSlot = 15;
 116    info.io.ucpBase = NV50_CB_AUX_UCP_OFFSET;
 117    info.io.suInfoBase = NV50_CB_AUX_TEX_MS_OFFSET;
 118    info.io.msInfoCBSlot = 15;
 119    info.io.msInfoBase = NV50_CB_AUX_MS_OFFSET;
 120
 121    info.assignSlots = dummy_assign_slots;
 122
 123    info.optLevel = debug_get_num_option("NV50_PROG_OPTIMIZE", 3);
 124    info.dbgFlags = debug_get_num_option("NV50_PROG_DEBUG", 0);
 125
 126    ret = nv50_ir_generate_code(&info);
 127    if (ret) {
 128       _debug_printf("Error compiling program: %d\n", ret);
 129       return ret;
 130    }
 131
 132    *size = info.bin.codeSize;
 133    *code = info.bin.code;
 134    return 0;
 135 }
 136
 137 int
 138 main(int argc, char *argv[])
 139 {
 140    struct tgsi_token tokens[4096];
 141    int i, chipset = 0, type = -1;
 142    const char *filename = NULL;
 143    FILE *f;
 144    char text[65536] = {0};
 145    unsigned size, *code;
 146
 147    for (i = 1; i < argc; i++) {
 148       if (!strcmp(argv[i], "-a"))
 149          chipset = strtol(argv[++i], NULL, 16);
 150       else
 151          filename = argv[i];
 152    }
 153
 154    if (!chipset) {
 155       _debug_printf("Must specify a chipset (-a)\n");
 156       return 1;
 157    }
 158
 159    if (!filename) {
 160       _debug_printf("Must specify a filename\n");
 161       return 1;
 162    }
 163
 164    if (!strcmp(filename, "-"))
 165       f = stdin;
 166    else
 167       f = fopen(filename, "r");
 168
 169    if (!f) {
 170       _debug_printf("Error opening file '%s': %s\n", filename, strerror(errno));
 171       return 1;
 172    }
 173
 174    if (!fread(text, 1, sizeof(text), f) || ferror(f)) {
 175       _debug_printf("Error reading file '%s'\n", filename);
 176       fclose(f);
 177       return 1;
 178    }
 179    fclose(f);
 180
 181    _debug_printf("Compiling for NV%X\n", chipset);
 182
 183    if (!strncmp(text, "FRAG", 4))
 184       type = PIPE_SHADER_FRAGMENT;
 185    else if (!strncmp(text, "VERT", 4))
 186       type = PIPE_SHADER_VERTEX;
 187    else if (!strncmp(text, "GEOM", 4))
 188       type = PIPE_SHADER_GEOMETRY;
 189    else if (!strncmp(text, "COMP", 4))
 190       type = PIPE_SHADER_COMPUTE;
 191    else if (!strncmp(text, "TESS_CTRL", 9))
 192       type = PIPE_SHADER_TESS_CTRL;
 193    else if (!strncmp(text, "TESS_EVAL", 9))
 194       type = PIPE_SHADER_TESS_EVAL;
 195    else {
 196       _debug_printf("Unrecognized TGSI header\n");
 197       return 1;
 198    }
 199
 200    if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
 201       _debug_printf("Failed to parse TGSI shader\n");
 202       return 1;
 203    }
 204
 205    if (chipset >= 0x50) {
 206       i = nouveau_codegen(chipset, type, tokens, &size, &code);
 207    } else if (chipset >= 0x30) {
 208       i = nv30_codegen(chipset, type, tokens, &size, &code);
 209    } else {
 210       _debug_printf("chipset NV%02X not supported\n", chipset);
 211       i = 1;
 212    }
 213    if (i)
 214       return i;
 215
 216    _debug_printf("program binary (%d bytes)\n", size);
 217    for (i = 0; i < size; i += 4) {
 218       printf("%08x ", code[i / 4]);
 219       if (i % (8 * 4) == (7 * 4))
 220          printf("\n");
 221    }
 222    if (i % (8 * 4) != 0)
 223       printf("\n");
 224
 225    return 0;
 226 }