drivers/gpu/drm/qxl/qxl_drv.h

   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         int monitors_config_width;
 329         int monitors_config_height;
 330 };
 331
 332 /* forward declaration for QXL_INFO_IO */
 333 __printf(2,3) void qxl_io_log(struct qxl_device *qdev, const char *fmt, ...);
 334
 335 extern const struct drm_ioctl_desc qxl_ioctls[];
 336 extern int qxl_max_ioctl;
 337
 338 int qxl_driver_load(struct drm_device *dev, unsigned long flags);
 339 int qxl_driver_unload(struct drm_device *dev);
 340
 341 int qxl_modeset_init(struct qxl_device *qdev);
 342 void qxl_modeset_fini(struct qxl_device *qdev);
 343
 344 int qxl_bo_init(struct qxl_device *qdev);
 345 void qxl_bo_fini(struct qxl_device *qdev);
 346
 347 void qxl_reinit_memslots(struct qxl_device *qdev);
 348 int qxl_surf_evict(struct qxl_device *qdev);
 349 int qxl_vram_evict(struct qxl_device *qdev);
 350
 351 struct qxl_ring *qxl_ring_create(struct qxl_ring_header *header,
 352                                  int element_size,
 353                                  int n_elements,
 354                                  int prod_notify,
 355                                  bool set_prod_notify,
 356                                  wait_queue_head_t *push_event);
 357 void qxl_ring_free(struct qxl_ring *ring);
 358 void qxl_ring_init_hdr(struct qxl_ring *ring);
 359 int qxl_check_idle(struct qxl_ring *ring);
 360
 361 static inline void *
 362 qxl_fb_virtual_address(struct qxl_device *qdev, unsigned long physical)
 363 {
 364         QXL_INFO(qdev, "not implemented (%lu)\n", physical);
 365         return 0;
 366 }
 367
 368 static inline uint64_t
 369 qxl_bo_physical_address(struct qxl_device *qdev, struct qxl_bo *bo,
 370                         unsigned long offset)
 371 {
 372         int slot_id = bo->type == QXL_GEM_DOMAIN_VRAM ? qdev->main_mem_slot : qdev->surfaces_mem_slot;
 373         struct qxl_memslot *slot = &(qdev->mem_slots[slot_id]);
 374
 375         /* TODO - need to hold one of the locks to read tbo.offset */
 376         return slot->high_bits | (bo->tbo.offset + offset);
 377 }
 378
 379 /* qxl_fb.c */
 380 #define QXLFB_CONN_LIMIT 1
 381
 382 int qxl_fbdev_init(struct qxl_device *qdev);
 383 void qxl_fbdev_fini(struct qxl_device *qdev);
 384 int qxl_get_handle_for_primary_fb(struct qxl_device *qdev,
 385                                   struct drm_file *file_priv,
 386                                   uint32_t *handle);
 387 void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state);
 388
 389 /* qxl_display.c */
 390 int
 391 qxl_framebuffer_init(struct drm_device *dev,
 392                      struct qxl_framebuffer *rfb,
 393                      const struct drm_mode_fb_cmd2 *mode_cmd,
 394                      struct drm_gem_object *obj);
 395 void qxl_display_read_client_monitors_config(struct qxl_device *qdev);
 396 void qxl_send_monitors_config(struct qxl_device *qdev);
 397 int qxl_create_monitors_object(struct qxl_device *qdev);
 398 int qxl_destroy_monitors_object(struct qxl_device *qdev);
 399
 400 /* used by qxl_debugfs only */
 401 void qxl_crtc_set_from_monitors_config(struct qxl_device *qdev);
 402 void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count);
 403
 404 /* qxl_gem.c */
 405 int qxl_gem_init(struct qxl_device *qdev);
 406 void qxl_gem_fini(struct qxl_device *qdev);
 407 int qxl_gem_object_create(struct qxl_device *qdev, int size,
 408                           int alignment, int initial_domain,
 409                           bool discardable, bool kernel,
 410                           struct qxl_surface *surf,
 411                           struct drm_gem_object **obj);
 412 int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
 413                                       struct drm_file *file_priv,
 414                                       u32 domain,
 415                                       size_t size,
 416                                       struct qxl_surface *surf,
 417                                       struct qxl_bo **qobj,
 418                                       uint32_t *handle);
 419 void qxl_gem_object_free(struct drm_gem_object *gobj);
 420 int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv);
 421 void qxl_gem_object_close(struct drm_gem_object *obj,
 422                           struct drm_file *file_priv);
 423 void qxl_bo_force_delete(struct qxl_device *qdev);
 424 int qxl_bo_kmap(struct qxl_bo *bo, void **ptr);
 425
 426 /* qxl_dumb.c */
 427 int qxl_mode_dumb_create(struct drm_file *file_priv,
 428                          struct drm_device *dev,
 429                          struct drm_mode_create_dumb *args);
 430 int qxl_mode_dumb_mmap(struct drm_file *filp,
 431                        struct drm_device *dev,
 432                        uint32_t handle, uint64_t *offset_p);
 433
 434
 435 /* qxl ttm */
 436 int qxl_ttm_init(struct qxl_device *qdev);
 437 void qxl_ttm_fini(struct qxl_device *qdev);
 438 int qxl_mmap(struct file *filp, struct vm_area_struct *vma);
 439
 440 /* qxl image */
 441
 442 int qxl_image_init(struct qxl_device *qdev,
 443                    struct qxl_release *release,
 444                    struct qxl_drm_image *dimage,
 445                    const uint8_t *data,
 446                    int x, int y, int width, int height,
 447                    int depth, int stride);
 448 int
 449 qxl_image_alloc_objects(struct qxl_device *qdev,
 450                         struct qxl_release *release,
 451                         struct qxl_drm_image **image_ptr,
 452                         int height, int stride);
 453 void qxl_image_free_objects(struct qxl_device *qdev, struct qxl_drm_image *dimage);
 454
 455 void qxl_update_screen(struct qxl_device *qxl);
 456
 457 /* qxl io operations (qxl_cmd.c) */
 458
 459 void qxl_io_create_primary(struct qxl_device *qdev,
 460                            unsigned offset,
 461                            struct qxl_bo *bo);
 462 void qxl_io_destroy_primary(struct qxl_device *qdev);
 463 void qxl_io_memslot_add(struct qxl_device *qdev, uint8_t id);
 464 void qxl_io_notify_oom(struct qxl_device *qdev);
 465
 466 int qxl_io_update_area(struct qxl_device *qdev, struct qxl_bo *surf,
 467                        const struct qxl_rect *area);
 468
 469 void qxl_io_reset(struct qxl_device *qdev);
 470 void qxl_io_monitors_config(struct qxl_device *qdev);
 471 int qxl_ring_push(struct qxl_ring *ring, const void *new_elt, bool interruptible);
 472 void qxl_io_flush_release(struct qxl_device *qdev);
 473 void qxl_io_flush_surfaces(struct qxl_device *qdev);
 474
 475 union qxl_release_info *qxl_release_map(struct qxl_device *qdev,
 476                                         struct qxl_release *release);
 477 void qxl_release_unmap(struct qxl_device *qdev,
 478                        struct qxl_release *release,
 479                        union qxl_release_info *info);
 480 int qxl_release_list_add(struct qxl_release *release, struct qxl_bo *bo);
 481 int qxl_release_reserve_list(struct qxl_release *release, bool no_intr);
 482 void qxl_release_backoff_reserve_list(struct qxl_release *release);
 483 void qxl_release_fence_buffer_objects(struct qxl_release *release);
 484
 485 int qxl_alloc_surface_release_reserved(struct qxl_device *qdev,
 486                                        enum qxl_surface_cmd_type surface_cmd_type,
 487                                        struct qxl_release *create_rel,
 488                                        struct qxl_release **release);
 489 int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
 490                                int type, struct qxl_release **release,
 491                                struct qxl_bo **rbo);
 492
 493 int
 494 qxl_push_command_ring_release(struct qxl_device *qdev, struct qxl_release *release,
 495                               uint32_t type, bool interruptible);
 496 int
 497 qxl_push_cursor_ring_release(struct qxl_device *qdev, struct qxl_release *release,
 498                              uint32_t type, bool interruptible);
 499 int qxl_alloc_bo_reserved(struct qxl_device *qdev,
 500                           struct qxl_release *release,
 501                           unsigned long size,
 502                           struct qxl_bo **_bo);
 503 /* qxl drawing commands */
 504
 505 void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image,
 506                         int stride /* filled in if 0 */);
 507
 508 void qxl_draw_dirty_fb(struct qxl_device *qdev,
 509                        struct qxl_framebuffer *qxl_fb,
 510                        struct qxl_bo *bo,
 511                        unsigned flags, unsigned color,
 512                        struct drm_clip_rect *clips,
 513                        unsigned num_clips, int inc);
 514
 515 void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec);
 516
 517 void qxl_draw_copyarea(struct qxl_device *qdev,
 518                        u32 width, u32 height,
 519                        u32 sx, u32 sy,
 520                        u32 dx, u32 dy);
 521
 522 void qxl_release_free(struct qxl_device *qdev,
 523                       struct qxl_release *release);
 524
 525 /* used by qxl_debugfs_release */
 526 struct qxl_release *qxl_release_from_id_locked(struct qxl_device *qdev,
 527                                                    uint64_t id);
 528
 529 bool qxl_queue_garbage_collect(struct qxl_device *qdev, bool flush);
 530 int qxl_garbage_collect(struct qxl_device *qdev);
 531
 532 /* debugfs */
 533
 534 int qxl_debugfs_init(struct drm_minor *minor);
 535 void qxl_debugfs_takedown(struct drm_minor *minor);
 536
 537 /* qxl_prime.c */
 538 int qxl_gem_prime_pin(struct drm_gem_object *obj);
 539 void qxl_gem_prime_unpin(struct drm_gem_object *obj);
 540 struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj);
 541 struct drm_gem_object *qxl_gem_prime_import_sg_table(
 542         struct drm_device *dev, struct dma_buf_attachment *attach,
 543         struct sg_table *sgt);
 544 void *qxl_gem_prime_vmap(struct drm_gem_object *obj);
 545 void qxl_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 546 int qxl_gem_prime_mmap(struct drm_gem_object *obj,
 547                                 struct vm_area_struct *vma);
 548
 549 /* qxl_irq.c */
 550 int qxl_irq_init(struct qxl_device *qdev);
 551 irqreturn_t qxl_irq_handler(int irq, void *arg);
 552
 553 /* qxl_fb.c */
 554 int qxl_fb_init(struct qxl_device *qdev);
 555 bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj);
 556
 557 int qxl_debugfs_add_files(struct qxl_device *qdev,
 558                           struct drm_info_list *files,
 559                           unsigned nfiles);
 560
 561 int qxl_surface_id_alloc(struct qxl_device *qdev,
 562                          struct qxl_bo *surf);
 563 void qxl_surface_id_dealloc(struct qxl_device *qdev,
 564                             uint32_t surface_id);
 565 int qxl_hw_surface_alloc(struct qxl_device *qdev,
 566                          struct qxl_bo *surf,
 567                          struct ttm_mem_reg *mem);
 568 int qxl_hw_surface_dealloc(struct qxl_device *qdev,
 569                            struct qxl_bo *surf);
 570
 571 int qxl_bo_check_id(struct qxl_device *qdev, struct qxl_bo *bo);
 572
 573 struct qxl_drv_surface *
 574 qxl_surface_lookup(struct drm_device *dev, int surface_id);
 575 void qxl_surface_evict(struct qxl_device *qdev, struct qxl_bo *surf, bool freeing);
 576 int qxl_update_surface(struct qxl_device *qdev, struct qxl_bo *surf);
 577
 578 #endif