1 /* 2 * Copyright 2013 Red Hat Inc. 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 * Authors: Dave Airlie 23 * Alon Levy 24 */ 25 26 27 #ifndef QXL_DRV_H 28 #define QXL_DRV_H 29 30 /* 31 * Definitions taken from spice-protocol, plus kernel driver specific bits. 32 */ 33 34 #include <linux/fence.h> 35 #include <linux/workqueue.h> 36 #include <linux/firmware.h> 37 #include <linux/platform_device.h> 38 39 #include "drmP.h" 40 #include "drm_crtc.h" 41 #include <ttm/ttm_bo_api.h> 42 #include <ttm/ttm_bo_driver.h> 43 #include <ttm/ttm_placement.h> 44 #include <ttm/ttm_module.h> 45 46 #include <drm/drm_gem.h> 47 48 /* just for ttm_validate_buffer */ 49 #include <ttm/ttm_execbuf_util.h> 50 51 #include <drm/qxl_drm.h> 52 #include "qxl_dev.h" 53 54 #define DRIVER_AUTHOR "Dave Airlie" 55 56 #define DRIVER_NAME "qxl" 57 #define DRIVER_DESC "RH QXL" 58 #define DRIVER_DATE "20120117" 59 60 #define DRIVER_MAJOR 0 61 #define DRIVER_MINOR 1 62 #define DRIVER_PATCHLEVEL 0 63 64 #define QXL_DEBUGFS_MAX_COMPONENTS 32 65 66 extern int qxl_log_level; 67 extern int qxl_num_crtc; 68 69 enum { 70 QXL_INFO_LEVEL = 1, 71 QXL_DEBUG_LEVEL = 2, 72 }; 73 74 #define QXL_INFO(qdev, fmt, ...) do { \ 75 if (qxl_log_level >= QXL_INFO_LEVEL) { \ 76 qxl_io_log(qdev, fmt, __VA_ARGS__); \ 77 } \ 78 } while (0) 79 #define QXL_DEBUG(qdev, fmt, ...) do { \ 80 if (qxl_log_level >= QXL_DEBUG_LEVEL) { \ 81 qxl_io_log(qdev, fmt, __VA_ARGS__); \ 82 } \ 83 } while (0) 84 #define QXL_INFO_ONCE(qdev, fmt, ...) do { \ 85 static int done; \ 86 if (!done) { \ 87 done = 1; \ 88 QXL_INFO(qdev, fmt, __VA_ARGS__); \ 89 } \ 90 } while (0) 91 92 #define DRM_FILE_OFFSET 0x100000000ULL 93 #define DRM_FILE_PAGE_OFFSET (DRM_FILE_OFFSET >> PAGE_SHIFT) 94 95 #define QXL_INTERRUPT_MASK (\ 96 QXL_INTERRUPT_DISPLAY |\ 97 QXL_INTERRUPT_CURSOR |\ 98 QXL_INTERRUPT_IO_CMD |\ 99 QXL_INTERRUPT_CLIENT_MONITORS_CONFIG) 100 101 struct qxl_bo { 102 /* Protected by gem.mutex */ 103 struct list_head list; 104 /* Protected by tbo.reserved */ 105 struct ttm_place placements[3]; 106 struct ttm_placement placement; 107 struct ttm_buffer_object tbo; 108 struct ttm_bo_kmap_obj kmap; 109 unsigned pin_count; 110 void *kptr; 111 int type; 112 113 /* Constant after initialization */ 114 struct drm_gem_object gem_base; 115 bool is_primary; /* is this now a primary surface */ 116 bool hw_surf_alloc; 117 struct qxl_surface surf; 118 uint32_t surface_id; 119 struct qxl_release *surf_create; 120 }; 121 #define gem_to_qxl_bo(gobj) container_of((gobj), struct qxl_bo, gem_base) 122 #define to_qxl_bo(tobj) container_of((tobj), struct qxl_bo, tbo) 123 124 struct qxl_gem { 125 struct mutex mutex; 126 struct list_head objects; 127 }; 128 129 struct qxl_bo_list { 130 struct ttm_validate_buffer tv; 131 }; 132 133 struct qxl_crtc { 134 struct drm_crtc base; 135 int index; 136 int cur_x; 137 int cur_y; 138 }; 139 140 struct qxl_output { 141 int index; 142 struct drm_connector base; 143 struct drm_encoder enc; 144 }; 145 146 struct qxl_framebuffer { 147 struct drm_framebuffer base; 148 struct drm_gem_object *obj; 149 }; 150 151 #define to_qxl_crtc(x) container_of(x, struct qxl_crtc, base) 152 #define drm_connector_to_qxl_output(x) container_of(x, struct qxl_output, base) 153 #define drm_encoder_to_qxl_output(x) container_of(x, struct qxl_output, enc) 154 #define to_qxl_framebuffer(x) container_of(x, struct qxl_framebuffer, base) 155 156 struct qxl_mman { 157 struct ttm_bo_global_ref bo_global_ref; 158 struct drm_global_reference mem_global_ref; 159 bool mem_global_referenced; 160 struct ttm_bo_device bdev; 161 }; 162 163 struct qxl_mode_info { 164 int num_modes; 165 struct qxl_mode *modes; 166 bool mode_config_initialized; 167 168 /* pointer to fbdev info structure */ 169 struct qxl_fbdev *qfbdev; 170 }; 171 172 173 struct qxl_memslot { 174 uint8_t generation; 175 uint64_t start_phys_addr; 176 uint64_t end_phys_addr; 177 uint64_t high_bits; 178 }; 179 180 enum { 181 QXL_RELEASE_DRAWABLE, 182 QXL_RELEASE_SURFACE_CMD, 183 QXL_RELEASE_CURSOR_CMD, 184 }; 185 186 /* drm_ prefix to differentiate from qxl_release_info in 187 * spice-protocol/qxl_dev.h */ 188 #define QXL_MAX_RES 96 189 struct qxl_release { 190 struct fence base; 191 192 int id; 193 int type; 194 uint32_t release_offset; 195 uint32_t surface_release_id; 196 struct ww_acquire_ctx ticket; 197 struct list_head bos; 198 }; 199 200 struct qxl_drm_chunk { 201 struct list_head head; 202 struct qxl_bo *bo; 203 }; 204 205 struct qxl_drm_image { 206 struct qxl_bo *bo; 207 struct list_head chunk_list; 208 }; 209 210 struct qxl_fb_image { 211 struct qxl_device *qdev; 212 uint32_t pseudo_palette[16]; 213 struct fb_image fb_image; 214 uint32_t visual; 215 }; 216 217 struct qxl_draw_fill { 218 struct qxl_device *qdev; 219 struct qxl_rect rect; 220 uint32_t color; 221 uint16_t rop; 222 }; 223 224 /* 225 * Debugfs 226 */ 227 struct qxl_debugfs { 228 struct drm_info_list *files; 229 unsigned num_files; 230 }; 231 232 int qxl_debugfs_add_files(struct qxl_device *rdev, 233 struct drm_info_list *files, 234 unsigned nfiles); 235 int qxl_debugfs_fence_init(struct qxl_device *rdev); 236 void qxl_debugfs_remove_files(struct qxl_device *qdev); 237 238 struct qxl_device; 239 240 struct qxl_device { 241 struct device *dev; 242 struct drm_device *ddev; 243 struct pci_dev *pdev; 244 unsigned long flags; 245 246 resource_size_t vram_base, vram_size; 247 resource_size_t surfaceram_base, surfaceram_size; 248 resource_size_t rom_base, rom_size; 249 struct qxl_rom *rom; 250 251 struct qxl_mode *modes; 252 struct qxl_bo *monitors_config_bo; 253 struct qxl_monitors_config *monitors_config; 254 255 /* last received client_monitors_config */ 256 struct qxl_monitors_config *client_monitors_config; 257 258 int io_base; 259 void *ram; 260 struct qxl_mman mman; 261 struct qxl_gem gem; 262 struct qxl_mode_info mode_info; 263 264 struct fb_info *fbdev_info; 265 struct qxl_framebuffer *fbdev_qfb; 266 void *ram_physical; 267 268 struct qxl_ring *release_ring; 269 struct qxl_ring *command_ring; 270 struct qxl_ring *cursor_ring; 271 272 struct qxl_ram_header *ram_header; 273 274 bool primary_created; 275 276 struct qxl_memslot *mem_slots; 277 uint8_t n_mem_slots; 278 279 uint8_t main_mem_slot; 280 uint8_t surfaces_mem_slot; 281 uint8_t slot_id_bits; 282 uint8_t slot_gen_bits; 283 uint64_t va_slot_mask; 284 285 spinlock_t release_lock; 286 struct idr release_idr; 287 uint32_t release_seqno; 288 spinlock_t release_idr_lock; 289 struct mutex async_io_mutex; 290 unsigned int last_sent_io_cmd; 291 292 /* interrupt handling */ 293 atomic_t irq_received; 294 atomic_t irq_received_display; 295 atomic_t irq_received_cursor; 296 atomic_t irq_received_io_cmd; 297 unsigned irq_received_error; 298 wait_queue_head_t display_event; 299 wait_queue_head_t cursor_event; 300 wait_queue_head_t io_cmd_event; 301 struct work_struct client_monitors_config_work; 302 303 /* debugfs */ 304 struct qxl_debugfs debugfs[QXL_DEBUGFS_MAX_COMPONENTS]; 305 unsigned debugfs_count; 306 307 struct mutex update_area_mutex; 308 309 struct idr surf_id_idr; 310 spinlock_t surf_id_idr_lock; 311 int last_alloced_surf_id; 312 313 struct mutex surf_evict_mutex; 314 struct io_mapping *vram_mapping; 315 struct io_mapping *surface_mapping; 316 317 /* */ 318 struct mutex release_mutex; 319 struct qxl_bo *current_release_bo[3]; 320 int current_release_bo_offset[3]; 321 322 struct workqueue_struct *gc_queue; 323 struct work_struct gc_work; 324 325 struct work_struct fb_work; 326 327 struct drm_property *hotplug_mode_update_property; 328 }; 329 330 /* forward declaration for QXL_INFO_IO */ 331 __printf(2,3) void qxl_io_log(struct qxl_device *qdev, const char *fmt, ...); 332 333 extern const struct drm_ioctl_desc qxl_ioctls[]; 334 extern int qxl_max_ioctl; 335 336 int qxl_driver_load(struct drm_device *dev, unsigned long flags); 337 int qxl_driver_unload(struct drm_device *dev); 338 339 int qxl_modeset_init(struct qxl_device *qdev); 340 void qxl_modeset_fini(struct qxl_device *qdev); 341 342 int qxl_bo_init(struct qxl_device *qdev); 343 void qxl_bo_fini(struct qxl_device *qdev); 344 345 void qxl_reinit_memslots(struct qxl_device *qdev); 346 int qxl_surf_evict(struct qxl_device *qdev); 347 int qxl_vram_evict(struct qxl_device *qdev); 348 349 struct qxl_ring *qxl_ring_create(struct qxl_ring_header *header, 350 int element_size, 351 int n_elements, 352 int prod_notify, 353 bool set_prod_notify, 354 wait_queue_head_t *push_event); 355 void qxl_ring_free(struct qxl_ring *ring); 356 void qxl_ring_init_hdr(struct qxl_ring *ring); 357 int qxl_check_idle(struct qxl_ring *ring); 358 359 static inline void * 360 qxl_fb_virtual_address(struct qxl_device *qdev, unsigned long physical) 361 { 362 QXL_INFO(qdev, "not implemented (%lu)\n", physical); 363 return 0; 364 } 365 366 static inline uint64_t 367 qxl_bo_physical_address(struct qxl_device *qdev, struct qxl_bo *bo, 368 unsigned long offset) 369 { 370 int slot_id = bo->type == QXL_GEM_DOMAIN_VRAM ? qdev->main_mem_slot : qdev->surfaces_mem_slot; 371 struct qxl_memslot *slot = &(qdev->mem_slots[slot_id]); 372 373 /* TODO - need to hold one of the locks to read tbo.offset */ 374 return slot->high_bits | (bo->tbo.offset + offset); 375 } 376 377 /* qxl_fb.c */ 378 #define QXLFB_CONN_LIMIT 1 379 380 int qxl_fbdev_init(struct qxl_device *qdev); 381 void qxl_fbdev_fini(struct qxl_device *qdev); 382 int qxl_get_handle_for_primary_fb(struct qxl_device *qdev, 383 struct drm_file *file_priv, 384 uint32_t *handle); 385 void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state); 386 387 /* qxl_display.c */ 388 int 389 qxl_framebuffer_init(struct drm_device *dev, 390 struct qxl_framebuffer *rfb, 391 struct drm_mode_fb_cmd2 *mode_cmd, 392 struct drm_gem_object *obj); 393 void qxl_display_read_client_monitors_config(struct qxl_device *qdev); 394 void qxl_send_monitors_config(struct qxl_device *qdev); 395 int qxl_create_monitors_object(struct qxl_device *qdev); 396 int qxl_destroy_monitors_object(struct qxl_device *qdev); 397 398 /* used by qxl_debugfs only */ 399 void qxl_crtc_set_from_monitors_config(struct qxl_device *qdev); 400 void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count); 401 402 /* qxl_gem.c */ 403 int qxl_gem_init(struct qxl_device *qdev); 404 void qxl_gem_fini(struct qxl_device *qdev); 405 int qxl_gem_object_create(struct qxl_device *qdev, int size, 406 int alignment, int initial_domain, 407 bool discardable, bool kernel, 408 struct qxl_surface *surf, 409 struct drm_gem_object **obj); 410 int qxl_gem_object_create_with_handle(struct qxl_device *qdev, 411 struct drm_file *file_priv, 412 u32 domain, 413 size_t size, 414 struct qxl_surface *surf, 415 struct qxl_bo **qobj, 416 uint32_t *handle); 417 void qxl_gem_object_free(struct drm_gem_object *gobj); 418 int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv); 419 void qxl_gem_object_close(struct drm_gem_object *obj, 420 struct drm_file *file_priv); 421 void qxl_bo_force_delete(struct qxl_device *qdev); 422 int qxl_bo_kmap(struct qxl_bo *bo, void **ptr); 423 424 /* qxl_dumb.c */ 425 int qxl_mode_dumb_create(struct drm_file *file_priv, 426 struct drm_device *dev, 427 struct drm_mode_create_dumb *args); 428 int qxl_mode_dumb_mmap(struct drm_file *filp, 429 struct drm_device *dev, 430 uint32_t handle, uint64_t *offset_p); 431 432 433 /* qxl ttm */ 434 int qxl_ttm_init(struct qxl_device *qdev); 435 void qxl_ttm_fini(struct qxl_device *qdev); 436 int qxl_mmap(struct file *filp, struct vm_area_struct *vma); 437 438 /* qxl image */ 439 440 int qxl_image_init(struct qxl_device *qdev, 441 struct qxl_release *release, 442 struct qxl_drm_image *dimage, 443 const uint8_t *data, 444 int x, int y, int width, int height, 445 int depth, int stride); 446 int 447 qxl_image_alloc_objects(struct qxl_device *qdev, 448 struct qxl_release *release, 449 struct qxl_drm_image **image_ptr, 450 int height, int stride); 451 void qxl_image_free_objects(struct qxl_device *qdev, struct qxl_drm_image *dimage); 452 453 void qxl_update_screen(struct qxl_device *qxl); 454 455 /* qxl io operations (qxl_cmd.c) */ 456 457 void qxl_io_create_primary(struct qxl_device *qdev, 458 unsigned offset, 459 struct qxl_bo *bo); 460 void qxl_io_destroy_primary(struct qxl_device *qdev); 461 void qxl_io_memslot_add(struct qxl_device *qdev, uint8_t id); 462 void qxl_io_notify_oom(struct qxl_device *qdev); 463 464 int qxl_io_update_area(struct qxl_device *qdev, struct qxl_bo *surf, 465 const struct qxl_rect *area); 466 467 void qxl_io_reset(struct qxl_device *qdev); 468 void qxl_io_monitors_config(struct qxl_device *qdev); 469 int qxl_ring_push(struct qxl_ring *ring, const void *new_elt, bool interruptible); 470 void qxl_io_flush_release(struct qxl_device *qdev); 471 void qxl_io_flush_surfaces(struct qxl_device *qdev); 472 473 union qxl_release_info *qxl_release_map(struct qxl_device *qdev, 474 struct qxl_release *release); 475 void qxl_release_unmap(struct qxl_device *qdev, 476 struct qxl_release *release, 477 union qxl_release_info *info); 478 int qxl_release_list_add(struct qxl_release *release, struct qxl_bo *bo); 479 int qxl_release_reserve_list(struct qxl_release *release, bool no_intr); 480 void qxl_release_backoff_reserve_list(struct qxl_release *release); 481 void qxl_release_fence_buffer_objects(struct qxl_release *release); 482 483 int qxl_alloc_surface_release_reserved(struct qxl_device *qdev, 484 enum qxl_surface_cmd_type surface_cmd_type, 485 struct qxl_release *create_rel, 486 struct qxl_release **release); 487 int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size, 488 int type, struct qxl_release **release, 489 struct qxl_bo **rbo); 490 491 int 492 qxl_push_command_ring_release(struct qxl_device *qdev, struct qxl_release *release, 493 uint32_t type, bool interruptible); 494 int 495 qxl_push_cursor_ring_release(struct qxl_device *qdev, struct qxl_release *release, 496 uint32_t type, bool interruptible); 497 int qxl_alloc_bo_reserved(struct qxl_device *qdev, 498 struct qxl_release *release, 499 unsigned long size, 500 struct qxl_bo **_bo); 501 /* qxl drawing commands */ 502 503 void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image, 504 int stride /* filled in if 0 */); 505 506 void qxl_draw_dirty_fb(struct qxl_device *qdev, 507 struct qxl_framebuffer *qxl_fb, 508 struct qxl_bo *bo, 509 unsigned flags, unsigned color, 510 struct drm_clip_rect *clips, 511 unsigned num_clips, int inc); 512 513 void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec); 514 515 void qxl_draw_copyarea(struct qxl_device *qdev, 516 u32 width, u32 height, 517 u32 sx, u32 sy, 518 u32 dx, u32 dy); 519 520 void qxl_release_free(struct qxl_device *qdev, 521 struct qxl_release *release); 522 523 /* used by qxl_debugfs_release */ 524 struct qxl_release *qxl_release_from_id_locked(struct qxl_device *qdev, 525 uint64_t id); 526 527 bool qxl_queue_garbage_collect(struct qxl_device *qdev, bool flush); 528 int qxl_garbage_collect(struct qxl_device *qdev); 529 530 /* debugfs */ 531 532 int qxl_debugfs_init(struct drm_minor *minor); 533 void qxl_debugfs_takedown(struct drm_minor *minor); 534 535 /* qxl_prime.c */ 536 int qxl_gem_prime_pin(struct drm_gem_object *obj); 537 void qxl_gem_prime_unpin(struct drm_gem_object *obj); 538 struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj); 539 struct drm_gem_object *qxl_gem_prime_import_sg_table( 540 struct drm_device *dev, struct dma_buf_attachment *attach, 541 struct sg_table *sgt); 542 void *qxl_gem_prime_vmap(struct drm_gem_object *obj); 543 void qxl_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); 544 int qxl_gem_prime_mmap(struct drm_gem_object *obj, 545 struct vm_area_struct *vma); 546 547 /* qxl_irq.c */ 548 int qxl_irq_init(struct qxl_device *qdev); 549 irqreturn_t qxl_irq_handler(int irq, void *arg); 550 551 /* qxl_fb.c */ 552 int qxl_fb_init(struct qxl_device *qdev); 553 bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj); 554 555 int qxl_debugfs_add_files(struct qxl_device *qdev, 556 struct drm_info_list *files, 557 unsigned nfiles); 558 559 int qxl_surface_id_alloc(struct qxl_device *qdev, 560 struct qxl_bo *surf); 561 void qxl_surface_id_dealloc(struct qxl_device *qdev, 562 uint32_t surface_id); 563 int qxl_hw_surface_alloc(struct qxl_device *qdev, 564 struct qxl_bo *surf, 565 struct ttm_mem_reg *mem); 566 int qxl_hw_surface_dealloc(struct qxl_device *qdev, 567 struct qxl_bo *surf); 568 569 int qxl_bo_check_id(struct qxl_device *qdev, struct qxl_bo *bo); 570 571 struct qxl_drv_surface * 572 qxl_surface_lookup(struct drm_device *dev, int surface_id); 573 void qxl_surface_evict(struct qxl_device *qdev, struct qxl_bo *surf, bool freeing); 574 int qxl_update_surface(struct qxl_device *qdev, struct qxl_bo *surf); 575 576 #endif 577