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 #ifndef QXL_DRV_H
  27 #define QXL_DRV_H
  28
  29 /*
  30  * Definitions taken from spice-protocol, plus kernel driver specific bits.
  31  */
  32
  33 #include <linux/dma-fence.h>
  34 #include <linux/firmware.h>
  35 #include <linux/platform_device.h>
  36 #include <linux/workqueue.h>
  37
  38 #include <drm/drm_crtc.h>
  39 #include <drm/drm_encoder.h>
  40 #include <drm/drm_fb_helper.h>
  41 #include <drm/drm_gem_ttm_helper.h>
  42 #include <drm/drm_ioctl.h>
  43 #include <drm/drm_gem.h>
  44 #include <drm/qxl_drm.h>
  45 #include <drm/ttm/ttm_bo_api.h>
  46 #include <drm/ttm/ttm_bo_driver.h>
  47 #include <drm/ttm/ttm_execbuf_util.h>
  48 #include <drm/ttm/ttm_module.h>
  49 #include <drm/ttm/ttm_placement.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 QXL_INTERRUPT_MASK (\
  69         QXL_INTERRUPT_DISPLAY |\
  70         QXL_INTERRUPT_CURSOR |\
  71         QXL_INTERRUPT_IO_CMD |\
  72         QXL_INTERRUPT_CLIENT_MONITORS_CONFIG)
  73
  74 struct qxl_bo {
  75         struct ttm_buffer_object        tbo;
  76
  77         /* Protected by gem.mutex */
  78         struct list_head                list;
  79         /* Protected by tbo.reserved */
  80         struct ttm_place                placements[3];
  81         struct ttm_placement            placement;
  82         struct ttm_bo_kmap_obj          kmap;
  83         unsigned int pin_count;
  84         void                            *kptr;
  85         unsigned int                    map_count;
  86         int                             type;
  87
  88         /* Constant after initialization */
  89         unsigned int is_primary:1; /* is this now a primary surface */
  90         unsigned int is_dumb:1;
  91         struct qxl_bo *shadow;
  92         unsigned int hw_surf_alloc:1;
  93         struct qxl_surface surf;
  94         uint32_t surface_id;
  95         struct qxl_release *surf_create;
  96 };
  97 #define gem_to_qxl_bo(gobj) container_of((gobj), struct qxl_bo, tbo.base)
  98 #define to_qxl_bo(tobj) container_of((tobj), struct qxl_bo, tbo)
  99
 100 struct qxl_gem {
 101         struct mutex            mutex;
 102         struct list_head        objects;
 103 };
 104
 105 struct qxl_bo_list {
 106         struct ttm_validate_buffer tv;
 107 };
 108
 109 struct qxl_crtc {
 110         struct drm_crtc base;
 111         int index;
 112
 113         struct qxl_bo *cursor_bo;
 114 };
 115
 116 struct qxl_output {
 117         int index;
 118         struct drm_connector base;
 119         struct drm_encoder enc;
 120 };
 121
 122 #define to_qxl_crtc(x) container_of(x, struct qxl_crtc, base)
 123 #define drm_connector_to_qxl_output(x) container_of(x, struct qxl_output, base)
 124 #define drm_encoder_to_qxl_output(x) container_of(x, struct qxl_output, enc)
 125
 126 struct qxl_mman {
 127         struct ttm_bo_device            bdev;
 128 };
 129
 130 struct qxl_memslot {
 131         int             index;
 132         const char      *name;
 133         uint8_t         generation;
 134         uint64_t        start_phys_addr;
 135         uint64_t        size;
 136         uint64_t        high_bits;
 137         uint64_t        gpu_offset;
 138 };
 139
 140 enum {
 141         QXL_RELEASE_DRAWABLE,
 142         QXL_RELEASE_SURFACE_CMD,
 143         QXL_RELEASE_CURSOR_CMD,
 144 };
 145
 146 /* drm_ prefix to differentiate from qxl_release_info in
 147  * spice-protocol/qxl_dev.h */
 148 #define QXL_MAX_RES 96
 149 struct qxl_release {
 150         struct dma_fence base;
 151
 152         int id;
 153         int type;
 154         struct qxl_bo *release_bo;
 155         uint32_t release_offset;
 156         uint32_t surface_release_id;
 157         struct ww_acquire_ctx ticket;
 158         struct list_head bos;
 159 };
 160
 161 struct qxl_drm_chunk {
 162         struct list_head head;
 163         struct qxl_bo *bo;
 164 };
 165
 166 struct qxl_drm_image {
 167         struct qxl_bo *bo;
 168         struct list_head chunk_list;
 169 };
 170
 171 struct qxl_fb_image {
 172         struct qxl_device *qdev;
 173         uint32_t pseudo_palette[16];
 174         struct fb_image fb_image;
 175         uint32_t visual;
 176 };
 177
 178 struct qxl_draw_fill {
 179         struct qxl_device *qdev;
 180         struct qxl_rect rect;
 181         uint32_t color;
 182         uint16_t rop;
 183 };
 184
 185 /*
 186  * Debugfs
 187  */
 188 struct qxl_debugfs {
 189         struct drm_info_list    *files;
 190         unsigned int num_files;
 191 };
 192
 193 int qxl_debugfs_add_files(struct qxl_device *rdev,
 194                              struct drm_info_list *files,
 195                              unsigned int nfiles);
 196 int qxl_debugfs_fence_init(struct qxl_device *rdev);
 197
 198 struct qxl_device;
 199
 200 struct qxl_device {
 201         struct drm_device ddev;
 202
 203         resource_size_t vram_base, vram_size;
 204         resource_size_t surfaceram_base, surfaceram_size;
 205         resource_size_t rom_base, rom_size;
 206         struct qxl_rom *rom;
 207
 208         struct qxl_mode *modes;
 209         struct qxl_bo *monitors_config_bo;
 210         struct qxl_monitors_config *monitors_config;
 211
 212         /* last received client_monitors_config */
 213         struct qxl_monitors_config *client_monitors_config;
 214
 215         int io_base;
 216         void *ram;
 217         struct qxl_mman         mman;
 218         struct qxl_gem          gem;
 219
 220         void *ram_physical;
 221
 222         struct qxl_ring *release_ring;
 223         struct qxl_ring *command_ring;
 224         struct qxl_ring *cursor_ring;
 225
 226         struct qxl_ram_header *ram_header;
 227
 228         struct qxl_bo *primary_bo;
 229         struct qxl_bo *dumb_shadow_bo;
 230         struct qxl_head *dumb_heads;
 231
 232         struct qxl_memslot main_slot;
 233         struct qxl_memslot surfaces_slot;
 234
 235         spinlock_t      release_lock;
 236         struct idr      release_idr;
 237         uint32_t        release_seqno;
 238         spinlock_t release_idr_lock;
 239         struct mutex    async_io_mutex;
 240         unsigned int last_sent_io_cmd;
 241
 242         /* interrupt handling */
 243         atomic_t irq_received;
 244         atomic_t irq_received_display;
 245         atomic_t irq_received_cursor;
 246         atomic_t irq_received_io_cmd;
 247         unsigned int irq_received_error;
 248         wait_queue_head_t display_event;
 249         wait_queue_head_t cursor_event;
 250         wait_queue_head_t io_cmd_event;
 251         struct work_struct client_monitors_config_work;
 252
 253         /* debugfs */
 254         struct qxl_debugfs      debugfs[QXL_DEBUGFS_MAX_COMPONENTS];
 255         unsigned int debugfs_count;
 256
 257         struct mutex            update_area_mutex;
 258
 259         struct idr      surf_id_idr;
 260         spinlock_t surf_id_idr_lock;
 261         int last_alloced_surf_id;
 262
 263         struct mutex surf_evict_mutex;
 264         struct io_mapping *vram_mapping;
 265         struct io_mapping *surface_mapping;
 266
 267         /* */
 268         struct mutex release_mutex;
 269         struct qxl_bo *current_release_bo[3];
 270         int current_release_bo_offset[3];
 271
 272         struct work_struct gc_work;
 273
 274         struct drm_property *hotplug_mode_update_property;
 275         int monitors_config_width;
 276         int monitors_config_height;
 277 };
 278
 279 extern const struct drm_ioctl_desc qxl_ioctls[];
 280 extern int qxl_max_ioctl;
 281
 282 int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
 283                     struct pci_dev *pdev);
 284 void qxl_device_fini(struct qxl_device *qdev);
 285
 286 int qxl_modeset_init(struct qxl_device *qdev);
 287 void qxl_modeset_fini(struct qxl_device *qdev);
 288
 289 int qxl_bo_init(struct qxl_device *qdev);
 290 void qxl_bo_fini(struct qxl_device *qdev);
 291
 292 void qxl_reinit_memslots(struct qxl_device *qdev);
 293 int qxl_surf_evict(struct qxl_device *qdev);
 294 int qxl_vram_evict(struct qxl_device *qdev);
 295
 296 struct qxl_ring *qxl_ring_create(struct qxl_ring_header *header,
 297                                  int element_size,
 298                                  int n_elements,
 299                                  int prod_notify,
 300                                  bool set_prod_notify,
 301                                  wait_queue_head_t *push_event);
 302 void qxl_ring_free(struct qxl_ring *ring);
 303 void qxl_ring_init_hdr(struct qxl_ring *ring);
 304 int qxl_check_idle(struct qxl_ring *ring);
 305
 306 static inline uint64_t
 307 qxl_bo_physical_address(struct qxl_device *qdev, struct qxl_bo *bo,
 308                         unsigned long offset)
 309 {
 310         struct qxl_memslot *slot =
 311                 (bo->tbo.mem.mem_type == TTM_PL_VRAM)
 312                 ? &qdev->main_slot : &qdev->surfaces_slot;
 313
 314         WARN_ON_ONCE((bo->tbo.offset & slot->gpu_offset) != slot->gpu_offset);
 315
 316         /* TODO - need to hold one of the locks to read tbo.offset */
 317         return slot->high_bits | (bo->tbo.offset - slot->gpu_offset + offset);
 318 }
 319
 320 /* qxl_display.c */
 321 void qxl_display_read_client_monitors_config(struct qxl_device *qdev);
 322 int qxl_create_monitors_object(struct qxl_device *qdev);
 323 int qxl_destroy_monitors_object(struct qxl_device *qdev);
 324
 325 /* qxl_gem.c */
 326 void qxl_gem_init(struct qxl_device *qdev);
 327 void qxl_gem_fini(struct qxl_device *qdev);
 328 int qxl_gem_object_create(struct qxl_device *qdev, int size,
 329                           int alignment, int initial_domain,
 330                           bool discardable, bool kernel,
 331                           struct qxl_surface *surf,
 332                           struct drm_gem_object **obj);
 333 int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
 334                                       struct drm_file *file_priv,
 335                                       u32 domain,
 336                                       size_t size,
 337                                       struct qxl_surface *surf,
 338                                       struct qxl_bo **qobj,
 339                                       uint32_t *handle);
 340 void qxl_gem_object_free(struct drm_gem_object *gobj);
 341 int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv);
 342 void qxl_gem_object_close(struct drm_gem_object *obj,
 343                           struct drm_file *file_priv);
 344 void qxl_bo_force_delete(struct qxl_device *qdev);
 345 int qxl_bo_kmap(struct qxl_bo *bo, void **ptr);
 346
 347 /* qxl_dumb.c */
 348 int qxl_mode_dumb_create(struct drm_file *file_priv,
 349                          struct drm_device *dev,
 350                          struct drm_mode_create_dumb *args);
 351 int qxl_mode_dumb_mmap(struct drm_file *filp,
 352                        struct drm_device *dev,
 353                        uint32_t handle, uint64_t *offset_p);
 354
 355 /* qxl ttm */
 356 int qxl_ttm_init(struct qxl_device *qdev);
 357 void qxl_ttm_fini(struct qxl_device *qdev);
 358 int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
 359                            struct ttm_mem_reg *mem);
 360
 361 /* qxl image */
 362
 363 int qxl_image_init(struct qxl_device *qdev,
 364                    struct qxl_release *release,
 365                    struct qxl_drm_image *dimage,
 366                    const uint8_t *data,
 367                    int x, int y, int width, int height,
 368                    int depth, int stride);
 369 int
 370 qxl_image_alloc_objects(struct qxl_device *qdev,
 371                         struct qxl_release *release,
 372                         struct qxl_drm_image **image_ptr,
 373                         int height, int stride);
 374 void qxl_image_free_objects(struct qxl_device *qdev, struct qxl_drm_image *dimage);
 375
 376 void qxl_update_screen(struct qxl_device *qxl);
 377
 378 /* qxl io operations (qxl_cmd.c) */
 379
 380 void qxl_io_create_primary(struct qxl_device *qdev,
 381                            struct qxl_bo *bo);
 382 void qxl_io_destroy_primary(struct qxl_device *qdev);
 383 void qxl_io_memslot_add(struct qxl_device *qdev, uint8_t id);
 384 void qxl_io_notify_oom(struct qxl_device *qdev);
 385
 386 int qxl_io_update_area(struct qxl_device *qdev, struct qxl_bo *surf,
 387                        const struct qxl_rect *area);
 388
 389 void qxl_io_reset(struct qxl_device *qdev);
 390 void qxl_io_monitors_config(struct qxl_device *qdev);
 391 int qxl_ring_push(struct qxl_ring *ring, const void *new_elt, bool interruptible);
 392 void qxl_io_flush_release(struct qxl_device *qdev);
 393 void qxl_io_flush_surfaces(struct qxl_device *qdev);
 394
 395 union qxl_release_info *qxl_release_map(struct qxl_device *qdev,
 396                                         struct qxl_release *release);
 397 void qxl_release_unmap(struct qxl_device *qdev,
 398                        struct qxl_release *release,
 399                        union qxl_release_info *info);
 400 int qxl_release_list_add(struct qxl_release *release, struct qxl_bo *bo);
 401 int qxl_release_reserve_list(struct qxl_release *release, bool no_intr);
 402 void qxl_release_backoff_reserve_list(struct qxl_release *release);
 403 void qxl_release_fence_buffer_objects(struct qxl_release *release);
 404
 405 int qxl_alloc_surface_release_reserved(struct qxl_device *qdev,
 406                                        enum qxl_surface_cmd_type surface_cmd_type,
 407                                        struct qxl_release *create_rel,
 408                                        struct qxl_release **release);
 409 int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
 410                                int type, struct qxl_release **release,
 411                                struct qxl_bo **rbo);
 412
 413 int
 414 qxl_push_command_ring_release(struct qxl_device *qdev, struct qxl_release *release,
 415                               uint32_t type, bool interruptible);
 416 int
 417 qxl_push_cursor_ring_release(struct qxl_device *qdev, struct qxl_release *release,
 418                              uint32_t type, bool interruptible);
 419 int qxl_alloc_bo_reserved(struct qxl_device *qdev,
 420                           struct qxl_release *release,
 421                           unsigned long size,
 422                           struct qxl_bo **_bo);
 423 /* qxl drawing commands */
 424
 425 void qxl_draw_dirty_fb(struct qxl_device *qdev,
 426                        struct drm_framebuffer *fb,
 427                        struct qxl_bo *bo,
 428                        unsigned int flags, unsigned int color,
 429                        struct drm_clip_rect *clips,
 430                        unsigned int num_clips, int inc,
 431                        uint32_t dumb_shadow_offset);
 432
 433 void qxl_release_free(struct qxl_device *qdev,
 434                       struct qxl_release *release);
 435
 436 /* used by qxl_debugfs_release */
 437 struct qxl_release *qxl_release_from_id_locked(struct qxl_device *qdev,
 438                                                    uint64_t id);
 439
 440 bool qxl_queue_garbage_collect(struct qxl_device *qdev, bool flush);
 441 int qxl_garbage_collect(struct qxl_device *qdev);
 442
 443 /* debugfs */
 444
 445 int qxl_debugfs_init(struct drm_minor *minor);
 446 int qxl_ttm_debugfs_init(struct qxl_device *qdev);
 447
 448 /* qxl_prime.c */
 449 int qxl_gem_prime_pin(struct drm_gem_object *obj);
 450 void qxl_gem_prime_unpin(struct drm_gem_object *obj);
 451 struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj);
 452 struct drm_gem_object *qxl_gem_prime_import_sg_table(
 453         struct drm_device *dev, struct dma_buf_attachment *attach,
 454         struct sg_table *sgt);
 455 void *qxl_gem_prime_vmap(struct drm_gem_object *obj);
 456 void qxl_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 457 int qxl_gem_prime_mmap(struct drm_gem_object *obj,
 458                                 struct vm_area_struct *vma);
 459
 460 /* qxl_irq.c */
 461 int qxl_irq_init(struct qxl_device *qdev);
 462 irqreturn_t qxl_irq_handler(int irq, void *arg);
 463
 464 int qxl_debugfs_add_files(struct qxl_device *qdev,
 465                           struct drm_info_list *files,
 466                           unsigned int nfiles);
 467
 468 int qxl_surface_id_alloc(struct qxl_device *qdev,
 469                          struct qxl_bo *surf);
 470 void qxl_surface_id_dealloc(struct qxl_device *qdev,
 471                             uint32_t surface_id);
 472 int qxl_hw_surface_alloc(struct qxl_device *qdev,
 473                          struct qxl_bo *surf);
 474 int qxl_hw_surface_dealloc(struct qxl_device *qdev,
 475                            struct qxl_bo *surf);
 476
 477 int qxl_bo_check_id(struct qxl_device *qdev, struct qxl_bo *bo);
 478
 479 struct qxl_drv_surface *
 480 qxl_surface_lookup(struct drm_device *dev, int surface_id);
 481 void qxl_surface_evict(struct qxl_device *qdev, struct qxl_bo *surf, bool freeing);
 482
 483 #endif