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