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