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