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 %8zd %08x %08x %d %s", 100 obj, 101 get_pin_flag(obj_priv), 102 obj->size, 103 obj->read_domains, obj->write_domain, 104 obj_priv->last_rendering_seqno, 105 obj_priv->dirty ? "dirty" : ""); 106 107 if (obj->name) 108 seq_printf(m, " (name: %d)", obj->name); 109 if (obj_priv->fence_reg != I915_FENCE_REG_NONE) 110 seq_printf(m, " (fence: %d)", obj_priv->fence_reg); 111 if (obj_priv->gtt_space != NULL) 112 seq_printf(m, " (gtt_offset: %08x)", obj_priv->gtt_offset); 113 114 seq_printf(m, "\n"); 115 } 116 117 if (lock) 118 spin_unlock(lock); 119 return 0; 120 } 121 122 static int i915_gem_request_info(struct seq_file *m, void *data) 123 { 124 struct drm_info_node *node = (struct drm_info_node *) m->private; 125 struct drm_device *dev = node->minor->dev; 126 drm_i915_private_t *dev_priv = dev->dev_private; 127 struct drm_i915_gem_request *gem_request; 128 129 seq_printf(m, "Request:\n"); 130 list_for_each_entry(gem_request, &dev_priv->mm.request_list, list) { 131 seq_printf(m, " %d @ %d\n", 132 gem_request->seqno, 133 (int) (jiffies - gem_request->emitted_jiffies)); 134 } 135 return 0; 136 } 137 138 static int i915_gem_seqno_info(struct seq_file *m, void *data) 139 { 140 struct drm_info_node *node = (struct drm_info_node *) m->private; 141 struct drm_device *dev = node->minor->dev; 142 drm_i915_private_t *dev_priv = dev->dev_private; 143 144 if (dev_priv->hw_status_page != NULL) { 145 seq_printf(m, "Current sequence: %d\n", 146 i915_get_gem_seqno(dev)); 147 } else { 148 seq_printf(m, "Current sequence: hws uninitialized\n"); 149 } 150 seq_printf(m, "Waiter sequence: %d\n", 151 dev_priv->mm.waiting_gem_seqno); 152 seq_printf(m, "IRQ sequence: %d\n", dev_priv->mm.irq_gem_seqno); 153 return 0; 154 } 155 156 157 static int i915_interrupt_info(struct seq_file *m, void *data) 158 { 159 struct drm_info_node *node = (struct drm_info_node *) m->private; 160 struct drm_device *dev = node->minor->dev; 161 drm_i915_private_t *dev_priv = dev->dev_private; 162 163 if (!IS_IGDNG(dev)) { 164 seq_printf(m, "Interrupt enable: %08x\n", 165 I915_READ(IER)); 166 seq_printf(m, "Interrupt identity: %08x\n", 167 I915_READ(IIR)); 168 seq_printf(m, "Interrupt mask: %08x\n", 169 I915_READ(IMR)); 170 seq_printf(m, "Pipe A stat: %08x\n", 171 I915_READ(PIPEASTAT)); 172 seq_printf(m, "Pipe B stat: %08x\n", 173 I915_READ(PIPEBSTAT)); 174 } else { 175 seq_printf(m, "North Display Interrupt enable: %08x\n", 176 I915_READ(DEIER)); 177 seq_printf(m, "North Display Interrupt identity: %08x\n", 178 I915_READ(DEIIR)); 179 seq_printf(m, "North Display Interrupt mask: %08x\n", 180 I915_READ(DEIMR)); 181 seq_printf(m, "South Display Interrupt enable: %08x\n", 182 I915_READ(SDEIER)); 183 seq_printf(m, "South Display Interrupt identity: %08x\n", 184 I915_READ(SDEIIR)); 185 seq_printf(m, "South Display Interrupt mask: %08x\n", 186 I915_READ(SDEIMR)); 187 seq_printf(m, "Graphics Interrupt enable: %08x\n", 188 I915_READ(GTIER)); 189 seq_printf(m, "Graphics Interrupt identity: %08x\n", 190 I915_READ(GTIIR)); 191 seq_printf(m, "Graphics Interrupt mask: %08x\n", 192 I915_READ(GTIMR)); 193 } 194 seq_printf(m, "Interrupts received: %d\n", 195 atomic_read(&dev_priv->irq_received)); 196 if (dev_priv->hw_status_page != NULL) { 197 seq_printf(m, "Current sequence: %d\n", 198 i915_get_gem_seqno(dev)); 199 } else { 200 seq_printf(m, "Current sequence: hws uninitialized\n"); 201 } 202 seq_printf(m, "Waiter sequence: %d\n", 203 dev_priv->mm.waiting_gem_seqno); 204 seq_printf(m, "IRQ sequence: %d\n", 205 dev_priv->mm.irq_gem_seqno); 206 return 0; 207 } 208 209 static int i915_gem_fence_regs_info(struct seq_file *m, void *data) 210 { 211 struct drm_info_node *node = (struct drm_info_node *) m->private; 212 struct drm_device *dev = node->minor->dev; 213 drm_i915_private_t *dev_priv = dev->dev_private; 214 int i; 215 216 seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start); 217 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs); 218 for (i = 0; i < dev_priv->num_fence_regs; i++) { 219 struct drm_gem_object *obj = dev_priv->fence_regs[i].obj; 220 221 if (obj == NULL) { 222 seq_printf(m, "Fenced object[%2d] = unused\n", i); 223 } else { 224 struct drm_i915_gem_object *obj_priv; 225 226 obj_priv = obj->driver_private; 227 seq_printf(m, "Fenced object[%2d] = %p: %s " 228 "%08x %08zx %08x %s %08x %08x %d", 229 i, obj, get_pin_flag(obj_priv), 230 obj_priv->gtt_offset, 231 obj->size, obj_priv->stride, 232 get_tiling_flag(obj_priv), 233 obj->read_domains, obj->write_domain, 234 obj_priv->last_rendering_seqno); 235 if (obj->name) 236 seq_printf(m, " (name: %d)", obj->name); 237 seq_printf(m, "\n"); 238 } 239 } 240 241 return 0; 242 } 243 244 static int i915_hws_info(struct seq_file *m, void *data) 245 { 246 struct drm_info_node *node = (struct drm_info_node *) m->private; 247 struct drm_device *dev = node->minor->dev; 248 drm_i915_private_t *dev_priv = dev->dev_private; 249 int i; 250 volatile u32 *hws; 251 252 hws = (volatile u32 *)dev_priv->hw_status_page; 253 if (hws == NULL) 254 return 0; 255 256 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) { 257 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n", 258 i * 4, 259 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]); 260 } 261 return 0; 262 } 263 264 static void i915_dump_pages(struct seq_file *m, struct page **pages, int page_count) 265 { 266 int page, i; 267 uint32_t *mem; 268 269 for (page = 0; page < page_count; page++) { 270 mem = kmap(pages[page]); 271 for (i = 0; i < PAGE_SIZE; i += 4) 272 seq_printf(m, "%08x : %08x\n", i, mem[i / 4]); 273 kunmap(pages[page]); 274 } 275 } 276 277 static int i915_batchbuffer_info(struct seq_file *m, void *data) 278 { 279 struct drm_info_node *node = (struct drm_info_node *) m->private; 280 struct drm_device *dev = node->minor->dev; 281 drm_i915_private_t *dev_priv = dev->dev_private; 282 struct drm_gem_object *obj; 283 struct drm_i915_gem_object *obj_priv; 284 int ret; 285 286 spin_lock(&dev_priv->mm.active_list_lock); 287 288 list_for_each_entry(obj_priv, &dev_priv->mm.active_list, list) { 289 obj = obj_priv->obj; 290 if (obj->read_domains & I915_GEM_DOMAIN_COMMAND) { 291 ret = i915_gem_object_get_pages(obj); 292 if (ret) { 293 DRM_ERROR("Failed to get pages: %d\n", ret); 294 spin_unlock(&dev_priv->mm.active_list_lock); 295 return ret; 296 } 297 298 seq_printf(m, "--- gtt_offset = 0x%08x\n", obj_priv->gtt_offset); 299 i915_dump_pages(m, obj_priv->pages, obj->size / PAGE_SIZE); 300 301 i915_gem_object_put_pages(obj); 302 } 303 } 304 305 spin_unlock(&dev_priv->mm.active_list_lock); 306 307 return 0; 308 } 309 310 static int i915_ringbuffer_data(struct seq_file *m, void *data) 311 { 312 struct drm_info_node *node = (struct drm_info_node *) m->private; 313 struct drm_device *dev = node->minor->dev; 314 drm_i915_private_t *dev_priv = dev->dev_private; 315 u8 *virt; 316 uint32_t *ptr, off; 317 318 if (!dev_priv->ring.ring_obj) { 319 seq_printf(m, "No ringbuffer setup\n"); 320 return 0; 321 } 322 323 virt = dev_priv->ring.virtual_start; 324 325 for (off = 0; off < dev_priv->ring.Size; off += 4) { 326 ptr = (uint32_t *)(virt + off); 327 seq_printf(m, "%08x : %08x\n", off, *ptr); 328 } 329 330 return 0; 331 } 332 333 static int i915_ringbuffer_info(struct seq_file *m, void *data) 334 { 335 struct drm_info_node *node = (struct drm_info_node *) m->private; 336 struct drm_device *dev = node->minor->dev; 337 drm_i915_private_t *dev_priv = dev->dev_private; 338 unsigned int head, tail; 339 340 head = I915_READ(PRB0_HEAD) & HEAD_ADDR; 341 tail = I915_READ(PRB0_TAIL) & TAIL_ADDR; 342 343 seq_printf(m, "RingHead : %08x\n", head); 344 seq_printf(m, "RingTail : %08x\n", tail); 345 seq_printf(m, "RingSize : %08lx\n", dev_priv->ring.Size); 346 seq_printf(m, "Acthd : %08x\n", I915_READ(IS_I965G(dev) ? ACTHD_I965 : ACTHD)); 347 348 return 0; 349 } 350 351 static int i915_error_state(struct seq_file *m, void *unused) 352 { 353 struct drm_info_node *node = (struct drm_info_node *) m->private; 354 struct drm_device *dev = node->minor->dev; 355 drm_i915_private_t *dev_priv = dev->dev_private; 356 struct drm_i915_error_state *error; 357 unsigned long flags; 358 359 spin_lock_irqsave(&dev_priv->error_lock, flags); 360 if (!dev_priv->first_error) { 361 seq_printf(m, "no error state collected\n"); 362 goto out; 363 } 364 365 error = dev_priv->first_error; 366 367 seq_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec, 368 error->time.tv_usec); 369 seq_printf(m, "EIR: 0x%08x\n", error->eir); 370 seq_printf(m, " PGTBL_ER: 0x%08x\n", error->pgtbl_er); 371 seq_printf(m, " INSTPM: 0x%08x\n", error->instpm); 372 seq_printf(m, " IPEIR: 0x%08x\n", error->ipeir); 373 seq_printf(m, " IPEHR: 0x%08x\n", error->ipehr); 374 seq_printf(m, " INSTDONE: 0x%08x\n", error->instdone); 375 seq_printf(m, " ACTHD: 0x%08x\n", error->acthd); 376 if (IS_I965G(dev)) { 377 seq_printf(m, " INSTPS: 0x%08x\n", error->instps); 378 seq_printf(m, " INSTDONE1: 0x%08x\n", error->instdone1); 379 } 380 381 out: 382 spin_unlock_irqrestore(&dev_priv->error_lock, flags); 383 384 return 0; 385 } 386 387 static int i915_registers_info(struct seq_file *m, void *data) { 388 struct drm_info_node *node = (struct drm_info_node *) m->private; 389 struct drm_device *dev = node->minor->dev; 390 drm_i915_private_t *dev_priv = dev->dev_private; 391 uint32_t reg; 392 393 #define DUMP_RANGE(start, end) \ 394 for (reg=start; reg < end; reg += 4) \ 395 seq_printf(m, "%08x\t%08x\n", reg, I915_READ(reg)); 396 397 DUMP_RANGE(0x00000, 0x00fff); /* VGA registers */ 398 DUMP_RANGE(0x02000, 0x02fff); /* instruction, memory, interrupt control registers */ 399 DUMP_RANGE(0x03000, 0x031ff); /* FENCE and PPGTT control registers */ 400 DUMP_RANGE(0x03200, 0x03fff); /* frame buffer compression registers */ 401 DUMP_RANGE(0x05000, 0x05fff); /* I/O control registers */ 402 DUMP_RANGE(0x06000, 0x06fff); /* clock control registers */ 403 DUMP_RANGE(0x07000, 0x07fff); /* 3D internal debug registers */ 404 DUMP_RANGE(0x07400, 0x088ff); /* GPE debug registers */ 405 DUMP_RANGE(0x0a000, 0x0afff); /* display palette registers */ 406 DUMP_RANGE(0x10000, 0x13fff); /* MMIO MCHBAR */ 407 DUMP_RANGE(0x30000, 0x3ffff); /* overlay registers */ 408 DUMP_RANGE(0x60000, 0x6ffff); /* display engine pipeline registers */ 409 DUMP_RANGE(0x70000, 0x72fff); /* display and cursor registers */ 410 DUMP_RANGE(0x73000, 0x73fff); /* performance counters */ 411 412 return 0; 413 } 414 415 416 static struct drm_info_list i915_debugfs_list[] = { 417 {"i915_regs", i915_registers_info, 0}, 418 {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST}, 419 {"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST}, 420 {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST}, 421 {"i915_gem_request", i915_gem_request_info, 0}, 422 {"i915_gem_seqno", i915_gem_seqno_info, 0}, 423 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0}, 424 {"i915_gem_interrupt", i915_interrupt_info, 0}, 425 {"i915_gem_hws", i915_hws_info, 0}, 426 {"i915_ringbuffer_data", i915_ringbuffer_data, 0}, 427 {"i915_ringbuffer_info", i915_ringbuffer_info, 0}, 428 {"i915_batchbuffers", i915_batchbuffer_info, 0}, 429 {"i915_error_state", i915_error_state, 0}, 430 }; 431 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list) 432 433 int i915_debugfs_init(struct drm_minor *minor) 434 { 435 return drm_debugfs_create_files(i915_debugfs_list, 436 I915_DEBUGFS_ENTRIES, 437 minor->debugfs_root, minor); 438 } 439 440 void i915_debugfs_cleanup(struct drm_minor *minor) 441 { 442 drm_debugfs_remove_files(i915_debugfs_list, 443 I915_DEBUGFS_ENTRIES, minor); 444 } 445 446 #endif /* CONFIG_DEBUG_FS */ 447 448