1 /* 2 * Copyright © 2008 Intel Corporation 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 (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * 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 NONINFRINGEMENT. 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 DEALINGS 21 * IN THE SOFTWARE. 22 * 23 * Authors: 24 * Eric Anholt <eric@anholt.net> 25 * Keith Packard <keithp@keithp.com> 26 * 27 */ 28 29 #include <linux/seq_file.h> 30 #include "drmP.h" 31 #include "drm.h" 32 #include "i915_drm.h" 33 #include "i915_drv.h" 34 35 #define DRM_I915_RING_DEBUG 1 36 37 38 #if defined(CONFIG_DEBUG_FS) 39 40 #define ACTIVE_LIST 1 41 #define FLUSHING_LIST 2 42 #define INACTIVE_LIST 3 43 44 static const char *get_pin_flag(struct drm_i915_gem_object *obj_priv) 45 { 46 if (obj_priv->user_pin_count > 0) 47 return "P"; 48 else if (obj_priv->pin_count > 0) 49 return "p"; 50 else 51 return " "; 52 } 53 54 static const char *get_tiling_flag(struct drm_i915_gem_object *obj_priv) 55 { 56 switch (obj_priv->tiling_mode) { 57 default: 58 case I915_TILING_NONE: return " "; 59 case I915_TILING_X: return "X"; 60 case I915_TILING_Y: return "Y"; 61 } 62 } 63 64 static int i915_gem_object_list_info(struct seq_file *m, void *data) 65 { 66 struct drm_info_node *node = (struct drm_info_node *) m->private; 67 uintptr_t list = (uintptr_t) node->info_ent->data; 68 struct list_head *head; 69 struct drm_device *dev = node->minor->dev; 70 drm_i915_private_t *dev_priv = dev->dev_private; 71 struct drm_i915_gem_object *obj_priv; 72 spinlock_t *lock = NULL; 73 74 switch (list) { 75 case ACTIVE_LIST: 76 seq_printf(m, "Active:\n"); 77 lock = &dev_priv->mm.active_list_lock; 78 head = &dev_priv->mm.active_list; 79 break; 80 case INACTIVE_LIST: 81 seq_printf(m, "Inactive:\n"); 82 head = &dev_priv->mm.inactive_list; 83 break; 84 case FLUSHING_LIST: 85 seq_printf(m, "Flushing:\n"); 86 head = &dev_priv->mm.flushing_list; 87 break; 88 default: 89 DRM_INFO("Ooops, unexpected list\n"); 90 return 0; 91 } 92 93 if (lock) 94 spin_lock(lock); 95 list_for_each_entry(obj_priv, head, list) 96 { 97 struct drm_gem_object *obj = obj_priv->obj; 98 99 seq_printf(m, " %p: %s %08x %08x %d", 100 obj, 101 get_pin_flag(obj_priv), 102 obj->read_domains, obj->write_domain, 103 obj_priv->last_rendering_seqno); 104 105 if (obj->name) 106 seq_printf(m, " (name: %d)", obj->name); 107 if (obj_priv->fence_reg != I915_FENCE_REG_NONE) 108 seq_printf(m, " (fence: %d)", obj_priv->fence_reg); 109 if (obj_priv->gtt_space != NULL) 110 seq_printf(m, " (gtt_offset: %08x)", obj_priv->gtt_offset); 111 112 seq_printf(m, "\n"); 113 } 114 115 if (lock) 116 spin_unlock(lock); 117 return 0; 118 } 119 120 static int i915_gem_request_info(struct seq_file *m, void *data) 121 { 122 struct drm_info_node *node = (struct drm_info_node *) m->private; 123 struct drm_device *dev = node->minor->dev; 124 drm_i915_private_t *dev_priv = dev->dev_private; 125 struct drm_i915_gem_request *gem_request; 126 127 seq_printf(m, "Request:\n"); 128 list_for_each_entry(gem_request, &dev_priv->mm.request_list, list) { 129 seq_printf(m, " %d @ %d\n", 130 gem_request->seqno, 131 (int) (jiffies - gem_request->emitted_jiffies)); 132 } 133 return 0; 134 } 135 136 static int i915_gem_seqno_info(struct seq_file *m, void *data) 137 { 138 struct drm_info_node *node = (struct drm_info_node *) m->private; 139 struct drm_device *dev = node->minor->dev; 140 drm_i915_private_t *dev_priv = dev->dev_private; 141 142 if (dev_priv->hw_status_page != NULL) { 143 seq_printf(m, "Current sequence: %d\n", 144 i915_get_gem_seqno(dev)); 145 } else { 146 seq_printf(m, "Current sequence: hws uninitialized\n"); 147 } 148 seq_printf(m, "Waiter sequence: %d\n", 149 dev_priv->mm.waiting_gem_seqno); 150 seq_printf(m, "IRQ sequence: %d\n", dev_priv->mm.irq_gem_seqno); 151 return 0; 152 } 153 154 155 static int i915_interrupt_info(struct seq_file *m, void *data) 156 { 157 struct drm_info_node *node = (struct drm_info_node *) m->private; 158 struct drm_device *dev = node->minor->dev; 159 drm_i915_private_t *dev_priv = dev->dev_private; 160 161 if (!IS_IGDNG(dev)) { 162 seq_printf(m, "Interrupt enable: %08x\n", 163 I915_READ(IER)); 164 seq_printf(m, "Interrupt identity: %08x\n", 165 I915_READ(IIR)); 166 seq_printf(m, "Interrupt mask: %08x\n", 167 I915_READ(IMR)); 168 seq_printf(m, "Pipe A stat: %08x\n", 169 I915_READ(PIPEASTAT)); 170 seq_printf(m, "Pipe B stat: %08x\n", 171 I915_READ(PIPEBSTAT)); 172 } else { 173 seq_printf(m, "North Display Interrupt enable: %08x\n", 174 I915_READ(DEIER)); 175 seq_printf(m, "North Display Interrupt identity: %08x\n", 176 I915_READ(DEIIR)); 177 seq_printf(m, "North Display Interrupt mask: %08x\n", 178 I915_READ(DEIMR)); 179 seq_printf(m, "South Display Interrupt enable: %08x\n", 180 I915_READ(SDEIER)); 181 seq_printf(m, "South Display Interrupt identity: %08x\n", 182 I915_READ(SDEIIR)); 183 seq_printf(m, "South Display Interrupt mask: %08x\n", 184 I915_READ(SDEIMR)); 185 seq_printf(m, "Graphics Interrupt enable: %08x\n", 186 I915_READ(GTIER)); 187 seq_printf(m, "Graphics Interrupt identity: %08x\n", 188 I915_READ(GTIIR)); 189 seq_printf(m, "Graphics Interrupt mask: %08x\n", 190 I915_READ(GTIMR)); 191 } 192 seq_printf(m, "Interrupts received: %d\n", 193 atomic_read(&dev_priv->irq_received)); 194 if (dev_priv->hw_status_page != NULL) { 195 seq_printf(m, "Current sequence: %d\n", 196 i915_get_gem_seqno(dev)); 197 } else { 198 seq_printf(m, "Current sequence: hws uninitialized\n"); 199 } 200 seq_printf(m, "Waiter sequence: %d\n", 201 dev_priv->mm.waiting_gem_seqno); 202 seq_printf(m, "IRQ sequence: %d\n", 203 dev_priv->mm.irq_gem_seqno); 204 return 0; 205 } 206 207 static int i915_gem_fence_regs_info(struct seq_file *m, void *data) 208 { 209 struct drm_info_node *node = (struct drm_info_node *) m->private; 210 struct drm_device *dev = node->minor->dev; 211 drm_i915_private_t *dev_priv = dev->dev_private; 212 int i; 213 214 seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start); 215 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs); 216 for (i = 0; i < dev_priv->num_fence_regs; i++) { 217 struct drm_gem_object *obj = dev_priv->fence_regs[i].obj; 218 219 if (obj == NULL) { 220 seq_printf(m, "Fenced object[%2d] = unused\n", i); 221 } else { 222 struct drm_i915_gem_object *obj_priv; 223 224 obj_priv = obj->driver_private; 225 seq_printf(m, "Fenced object[%2d] = %p: %s " 226 "%08x %08zx %08x %s %08x %08x %d", 227 i, obj, get_pin_flag(obj_priv), 228 obj_priv->gtt_offset, 229 obj->size, obj_priv->stride, 230 get_tiling_flag(obj_priv), 231 obj->read_domains, obj->write_domain, 232 obj_priv->last_rendering_seqno); 233 if (obj->name) 234 seq_printf(m, " (name: %d)", obj->name); 235 seq_printf(m, "\n"); 236 } 237 } 238 239 return 0; 240 } 241 242 static int i915_hws_info(struct seq_file *m, void *data) 243 { 244 struct drm_info_node *node = (struct drm_info_node *) m->private; 245 struct drm_device *dev = node->minor->dev; 246 drm_i915_private_t *dev_priv = dev->dev_private; 247 int i; 248 volatile u32 *hws; 249 250 hws = (volatile u32 *)dev_priv->hw_status_page; 251 if (hws == NULL) 252 return 0; 253 254 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) { 255 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n", 256 i * 4, 257 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]); 258 } 259 return 0; 260 } 261 262 static void i915_dump_pages(struct seq_file *m, struct page **pages, int page_count) 263 { 264 int page, i; 265 uint32_t *mem; 266 267 for (page = 0; page < page_count; page++) { 268 mem = kmap(pages[page]); 269 for (i = 0; i < PAGE_SIZE; i += 4) 270 seq_printf(m, "%08x : %08x\n", i, mem[i / 4]); 271 kunmap(pages[page]); 272 } 273 } 274 275 static int i915_batchbuffer_info(struct seq_file *m, void *data) 276 { 277 struct drm_info_node *node = (struct drm_info_node *) m->private; 278 struct drm_device *dev = node->minor->dev; 279 drm_i915_private_t *dev_priv = dev->dev_private; 280 struct drm_gem_object *obj; 281 struct drm_i915_gem_object *obj_priv; 282 int ret; 283 284 spin_lock(&dev_priv->mm.active_list_lock); 285 286 list_for_each_entry(obj_priv, &dev_priv->mm.active_list, list) { 287 obj = obj_priv->obj; 288 if (obj->read_domains & I915_GEM_DOMAIN_COMMAND) { 289 ret = i915_gem_object_get_pages(obj); 290 if (ret) { 291 DRM_ERROR("Failed to get pages: %d\n", ret); 292 spin_unlock(&dev_priv->mm.active_list_lock); 293 return ret; 294 } 295 296 seq_printf(m, "--- gtt_offset = 0x%08x\n", obj_priv->gtt_offset); 297 i915_dump_pages(m, obj_priv->pages, obj->size / PAGE_SIZE); 298 299 i915_gem_object_put_pages(obj); 300 } 301 } 302 303 spin_unlock(&dev_priv->mm.active_list_lock); 304 305 return 0; 306 } 307 308 static int i915_ringbuffer_data(struct seq_file *m, void *data) 309 { 310 struct drm_info_node *node = (struct drm_info_node *) m->private; 311 struct drm_device *dev = node->minor->dev; 312 drm_i915_private_t *dev_priv = dev->dev_private; 313 u8 *virt; 314 uint32_t *ptr, off; 315 316 if (!dev_priv->ring.ring_obj) { 317 seq_printf(m, "No ringbuffer setup\n"); 318 return 0; 319 } 320 321 virt = dev_priv->ring.virtual_start; 322 323 for (off = 0; off < dev_priv->ring.Size; off += 4) { 324 ptr = (uint32_t *)(virt + off); 325 seq_printf(m, "%08x : %08x\n", off, *ptr); 326 } 327 328 return 0; 329 } 330 331 static int i915_ringbuffer_info(struct seq_file *m, void *data) 332 { 333 struct drm_info_node *node = (struct drm_info_node *) m->private; 334 struct drm_device *dev = node->minor->dev; 335 drm_i915_private_t *dev_priv = dev->dev_private; 336 unsigned int head, tail; 337 338 head = I915_READ(PRB0_HEAD) & HEAD_ADDR; 339 tail = I915_READ(PRB0_TAIL) & TAIL_ADDR; 340 341 seq_printf(m, "RingHead : %08x\n", head); 342 seq_printf(m, "RingTail : %08x\n", tail); 343 seq_printf(m, "RingSize : %08lx\n", dev_priv->ring.Size); 344 seq_printf(m, "Acthd : %08x\n", I915_READ(IS_I965G(dev) ? ACTHD_I965 : ACTHD)); 345 346 return 0; 347 } 348 349 static int i915_error_state(struct seq_file *m, void *unused) 350 { 351 struct drm_info_node *node = (struct drm_info_node *) m->private; 352 struct drm_device *dev = node->minor->dev; 353 drm_i915_private_t *dev_priv = dev->dev_private; 354 struct drm_i915_error_state *error; 355 unsigned long flags; 356 357 spin_lock_irqsave(&dev_priv->error_lock, flags); 358 if (!dev_priv->first_error) { 359 seq_printf(m, "no error state collected\n"); 360 goto out; 361 } 362 363 error = dev_priv->first_error; 364 365 seq_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec, 366 error->time.tv_usec); 367 seq_printf(m, "EIR: 0x%08x\n", error->eir); 368 seq_printf(m, " PGTBL_ER: 0x%08x\n", error->pgtbl_er); 369 seq_printf(m, " INSTPM: 0x%08x\n", error->instpm); 370 seq_printf(m, " IPEIR: 0x%08x\n", error->ipeir); 371 seq_printf(m, " IPEHR: 0x%08x\n", error->ipehr); 372 seq_printf(m, " INSTDONE: 0x%08x\n", error->instdone); 373 seq_printf(m, " ACTHD: 0x%08x\n", error->acthd); 374 if (IS_I965G(dev)) { 375 seq_printf(m, " INSTPS: 0x%08x\n", error->instps); 376 seq_printf(m, " INSTDONE1: 0x%08x\n", error->instdone1); 377 } 378 379 out: 380 spin_unlock_irqrestore(&dev_priv->error_lock, flags); 381 382 return 0; 383 } 384 385 static int i915_registers_info(struct seq_file *m, void *data) { 386 struct drm_info_node *node = (struct drm_info_node *) m->private; 387 struct drm_device *dev = node->minor->dev; 388 drm_i915_private_t *dev_priv = dev->dev_private; 389 uint32_t reg; 390 391 #define DUMP_RANGE(start, end) \ 392 for (reg=start; reg < end; reg += 4) \ 393 seq_printf(m, "%08x\t%08x\n", reg, I915_READ(reg)); 394 395 DUMP_RANGE(0x00000, 0x00fff); /* VGA registers */ 396 DUMP_RANGE(0x02000, 0x02fff); /* instruction, memory, interrupt control registers */ 397 DUMP_RANGE(0x03000, 0x031ff); /* FENCE and PPGTT control registers */ 398 DUMP_RANGE(0x03200, 0x03fff); /* frame buffer compression registers */ 399 DUMP_RANGE(0x05000, 0x05fff); /* I/O control registers */ 400 DUMP_RANGE(0x06000, 0x06fff); /* clock control registers */ 401 DUMP_RANGE(0x07000, 0x07fff); /* 3D internal debug registers */ 402 DUMP_RANGE(0x07400, 0x088ff); /* GPE debug registers */ 403 DUMP_RANGE(0x0a000, 0x0afff); /* display palette registers */ 404 DUMP_RANGE(0x10000, 0x13fff); /* MMIO MCHBAR */ 405 DUMP_RANGE(0x30000, 0x3ffff); /* overlay registers */ 406 DUMP_RANGE(0x60000, 0x6ffff); /* display engine pipeline registers */ 407 DUMP_RANGE(0x70000, 0x72fff); /* display and cursor registers */ 408 DUMP_RANGE(0x73000, 0x73fff); /* performance counters */ 409 410 return 0; 411 } 412 413 414 static struct drm_info_list i915_debugfs_list[] = { 415 {"i915_regs", i915_registers_info, 0}, 416 {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST}, 417 {"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST}, 418 {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST}, 419 {"i915_gem_request", i915_gem_request_info, 0}, 420 {"i915_gem_seqno", i915_gem_seqno_info, 0}, 421 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0}, 422 {"i915_gem_interrupt", i915_interrupt_info, 0}, 423 {"i915_gem_hws", i915_hws_info, 0}, 424 {"i915_ringbuffer_data", i915_ringbuffer_data, 0}, 425 {"i915_ringbuffer_info", i915_ringbuffer_info, 0}, 426 {"i915_batchbuffers", i915_batchbuffer_info, 0}, 427 {"i915_error_state", i915_error_state, 0}, 428 }; 429 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list) 430 431 int i915_debugfs_init(struct drm_minor *minor) 432 { 433 return drm_debugfs_create_files(i915_debugfs_list, 434 I915_DEBUGFS_ENTRIES, 435 minor->debugfs_root, minor); 436 } 437 438 void i915_debugfs_cleanup(struct drm_minor *minor) 439 { 440 drm_debugfs_remove_files(i915_debugfs_list, 441 I915_DEBUGFS_ENTRIES, minor); 442 } 443 444 #endif /* CONFIG_DEBUG_FS */ 445 446