Chris Wilson | 9eb4de1 | 2010-02-12 13:28:40 +0000 | [diff] [blame^] | 1 | /* -*- c-basic-offset: 4 -*- */ |
| 2 | /* |
| 3 | * Copyright © 2007 Intel Corporation |
| 4 | * Copyright © 2009 Intel Corporation |
| 5 | * Copyright © 2010 Intel Corporation |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 8 | * copy of this software and associated documentation files (the "Software"), |
| 9 | * to deal in the Software without restriction, including without limitation |
| 10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 11 | * and/or sell copies of the Software, and to permit persons to whom the |
| 12 | * Software is furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice (including the next |
| 15 | * paragraph) shall be included in all copies or substantial portions of the |
| 16 | * Software. |
| 17 | * |
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 24 | * IN THE SOFTWARE. |
| 25 | * |
| 26 | * Authors: |
| 27 | * Eric Anholt <eric@anholt.net> |
| 28 | * Carl Worth <cworth@cworth.org> |
| 29 | * Chris Wilson <chris@chris-wilson.co.uk> |
| 30 | * |
| 31 | */ |
| 32 | |
| 33 | /** @file intel_decode.c |
| 34 | * This file contains code to print out batchbuffer contents in a |
| 35 | * human-readable format. |
| 36 | * |
| 37 | * The current version only supports i915 packets, and only pretty-prints a |
| 38 | * subset of them. The intention is for it to make just a best attempt to |
| 39 | * decode, but never crash in the process. |
| 40 | */ |
| 41 | |
| 42 | #define _GNU_SOURCE |
| 43 | #include <stdio.h> |
| 44 | #include <stdlib.h> |
| 45 | #include <stdarg.h> |
| 46 | #include <string.h> |
| 47 | #include <inttypes.h> |
| 48 | #include <errno.h> |
| 49 | #include <sys/stat.h> |
| 50 | #include <err.h> |
| 51 | |
| 52 | #include "intel_decode.h" |
| 53 | #include "intel_chipset.h" |
| 54 | #include "intel_gpu_tools.h" |
| 55 | #include "instdone.h" |
| 56 | |
| 57 | static void |
| 58 | print_instdone (unsigned int instdone, unsigned int instdone1) |
| 59 | { |
| 60 | int i; |
| 61 | |
| 62 | for (i = 0; i < num_instdone_bits; i++) { |
| 63 | int busy = 0; |
| 64 | |
| 65 | if (instdone_bits[i].reg == INST_DONE_1) { |
| 66 | if (!(instdone1 & instdone_bits[i].bit)) |
| 67 | busy = 1; |
| 68 | } else { |
| 69 | if (!(instdone & instdone_bits[i].bit)) |
| 70 | busy = 1; |
| 71 | } |
| 72 | |
| 73 | if (busy) |
| 74 | printf(" busy: %s\n", instdone_bits[i].name); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | static void |
| 79 | read_data_file (const char * filename) |
| 80 | { |
| 81 | FILE *file; |
| 82 | int devid = PCI_CHIP_I855_GM; |
| 83 | uint32_t *data = NULL; |
| 84 | int data_size = 0, count = 0, line_number = 0, matched; |
| 85 | char *line = NULL; |
| 86 | size_t line_size; |
| 87 | uint32_t offset, value; |
| 88 | uint32_t gtt_offset = 0, new_gtt_offset; |
| 89 | char *buffer_type[2] = { "ringbuffer", "batchbuffer" }; |
| 90 | int is_batch = 1; |
| 91 | |
| 92 | file = fopen (filename, "r"); |
| 93 | if (file == NULL) { |
| 94 | fprintf (stderr, "Failed to open %s: %s\n", |
| 95 | filename, strerror (errno)); |
| 96 | exit (1); |
| 97 | } |
| 98 | |
| 99 | while (getline (&line, &line_size, file) > 0) { |
| 100 | line_number++; |
| 101 | |
| 102 | matched = sscanf (line, "--- gtt_offset = 0x%08x\n", &new_gtt_offset); |
| 103 | if (matched == 1) { |
| 104 | if (count) { |
| 105 | printf("%s at 0x%08x:\n", buffer_type[is_batch], gtt_offset); |
| 106 | intel_decode (data, count, gtt_offset, devid, 0); |
| 107 | count = 0; |
| 108 | } |
| 109 | gtt_offset = new_gtt_offset; |
| 110 | is_batch = 1; |
| 111 | continue; |
| 112 | } |
| 113 | |
| 114 | matched = sscanf (line, "--- ringbuffer = 0x%08x\n", &new_gtt_offset); |
| 115 | if (matched == 1) { |
| 116 | if (count) { |
| 117 | printf("%s at 0x%08x:\n", buffer_type[is_batch], gtt_offset); |
| 118 | intel_decode (data, count, gtt_offset, devid, 0); |
| 119 | count = 0; |
| 120 | } |
| 121 | gtt_offset = new_gtt_offset; |
| 122 | is_batch = 0; |
| 123 | continue; |
| 124 | } |
| 125 | |
| 126 | matched = sscanf (line, "%08x : %08x", &offset, &value); |
| 127 | if (matched != 2) { |
| 128 | unsigned int reg; |
| 129 | |
| 130 | printf("%s", line); |
| 131 | |
| 132 | matched = sscanf (line, "PCI ID: 0x%04x\n", ®); |
| 133 | if (matched) |
| 134 | devid = reg; |
| 135 | |
| 136 | matched = sscanf (line, " ACTHD: 0x%08x\n", ®); |
| 137 | if (matched) |
| 138 | intel_decode_context_set_head_tail(reg, 0xffffffff); |
| 139 | |
| 140 | matched = sscanf (line, " INSTDONE: 0x%08x\n", ®); |
| 141 | if (matched) |
| 142 | print_instdone (reg, -1); |
| 143 | |
| 144 | matched = sscanf (line, " INSTDONE1: 0x%08x\n", ®); |
| 145 | if (matched) |
| 146 | print_instdone (-1, reg); |
| 147 | |
| 148 | continue; |
| 149 | } |
| 150 | |
| 151 | count++; |
| 152 | |
| 153 | if (count > data_size) { |
| 154 | data_size = data_size ? data_size * 2 : 1024; |
| 155 | data = realloc (data, data_size * sizeof (uint32_t)); |
| 156 | if (data == NULL) { |
| 157 | fprintf (stderr, "Out of memory.\n"); |
| 158 | exit (1); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | data[count-1] = value; |
| 163 | } |
| 164 | |
| 165 | if (count) { |
| 166 | printf("%s at 0x%08x:\n", buffer_type[is_batch], gtt_offset); |
| 167 | intel_decode (data, count, gtt_offset, devid, 0); |
| 168 | } |
| 169 | |
| 170 | free (data); |
| 171 | free (line); |
| 172 | |
| 173 | fclose (file); |
| 174 | } |
| 175 | |
| 176 | int |
| 177 | main (int argc, char *argv[]) |
| 178 | { |
| 179 | const char *path; |
| 180 | struct stat st; |
| 181 | int err; |
| 182 | |
| 183 | if (argc > 2) { |
| 184 | fprintf (stderr, |
| 185 | "intel_gpu_decode: Parse an Intel GPU i915_error_state\n" |
| 186 | "Usage:\n" |
| 187 | "\t%s [<file>]\n" |
| 188 | "\n" |
| 189 | "With no arguments, debugfs-dri-directory is probed for in " |
| 190 | "/debug and \n" |
| 191 | "/sys/kernel/debug. Otherwise, it may be " |
| 192 | "specified. If a file is given,\n" |
| 193 | "it is parsed as an GPU dump in the format of " |
| 194 | "/debug/dri/0/i915_error_state.\n", |
| 195 | argv[0]); |
| 196 | return 1; |
| 197 | } |
| 198 | |
| 199 | init_instdone_definitions(); |
| 200 | |
| 201 | if (argc == 1) { |
| 202 | path = "/debug/dri/0"; |
| 203 | err = stat (path, &st); |
| 204 | if (err != 0) { |
| 205 | path = "/sys/kernel/debug/dri/0"; |
| 206 | err = stat (path, &st); |
| 207 | if (err != 0) { |
| 208 | errx(1, |
| 209 | "Couldn't find i915 debugfs directory.\n\n" |
| 210 | "Is debugfs mounted? You might try mounting it with a command such as:\n\n" |
| 211 | "\tsudo mount -t debugfs debugfs /sys/kernel/debug\n"); |
| 212 | } |
| 213 | } |
| 214 | } else { |
| 215 | path = argv[1]; |
| 216 | err = stat (path, &st); |
| 217 | if (err != 0) { |
| 218 | fprintf (stderr, "Error opening %s: %s\n", |
| 219 | path, strerror (errno)); |
| 220 | exit (1); |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | if (S_ISDIR (st.st_mode)) { |
| 225 | char *filename; |
| 226 | |
| 227 | asprintf (&filename, "%s/i915_error_state", path); |
| 228 | read_data_file (filename); |
| 229 | free (filename); |
| 230 | } else { |
| 231 | read_data_file (path); |
| 232 | } |
| 233 | |
| 234 | return 0; |
| 235 | } |