| 1 | /** |
| 2 | * \file drmP.h |
| 3 | * Private header for Direct Rendering Manager |
| 4 | * |
| 5 | * \author Rickard E. (Rik) Faith <faith@valinux.com> |
| 6 | * \author Gareth Hughes <gareth@valinux.com> |
| 7 | */ |
| 8 | |
| 9 | /* |
| 10 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. |
| 11 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. |
| 12 | * Copyright (c) 2009-2010, Code Aurora Forum. |
| 13 | * All rights reserved. |
| 14 | * |
| 15 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 16 | * copy of this software and associated documentation files (the "Software"), |
| 17 | * to deal in the Software without restriction, including without limitation |
| 18 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 19 | * and/or sell copies of the Software, and to permit persons to whom the |
| 20 | * Software is furnished to do so, subject to the following conditions: |
| 21 | * |
| 22 | * The above copyright notice and this permission notice (including the next |
| 23 | * paragraph) shall be included in all copies or substantial portions of the |
| 24 | * Software. |
| 25 | * |
| 26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 27 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 28 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 29 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 30 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 31 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 32 | * OTHER DEALINGS IN THE SOFTWARE. |
| 33 | * |
| 34 | * $FreeBSD: head/sys/dev/drm2/drmP.h 255045 2013-08-29 23:09:34Z jkim $ |
| 35 | */ |
| 36 | |
| 37 | #ifndef _DRM_P_H_ |
| 38 | #define _DRM_P_H_ |
| 39 | |
| 40 | #if defined(_KERNEL) || defined(__KERNEL__) |
| 41 | |
| 42 | #include <sys/param.h> |
| 43 | #include <sys/queue.h> |
| 44 | #include <sys/malloc.h> |
| 45 | #include <sys/kernel.h> |
| 46 | #include <sys/ktr.h> |
| 47 | #include <sys/module.h> |
| 48 | #include <sys/systm.h> |
| 49 | #include <sys/device.h> |
| 50 | #include <sys/sglist.h> |
| 51 | #include <sys/stat.h> |
| 52 | #include <sys/priv.h> |
| 53 | #include <sys/proc.h> |
| 54 | #include <sys/lock.h> |
| 55 | #include <sys/spinlock.h> |
| 56 | #include <sys/spinlock2.h> |
| 57 | #include <sys/fcntl.h> |
| 58 | #include <sys/uio.h> |
| 59 | #include <sys/filio.h> |
| 60 | #include <sys/sysctl.h> |
| 61 | #include <sys/bus.h> |
| 62 | #include <sys/queue.h> |
| 63 | #include <sys/signalvar.h> |
| 64 | #include <sys/poll.h> |
| 65 | #include <sys/sbuf.h> |
| 66 | #include <sys/taskqueue.h> |
| 67 | #include <sys/tree.h> |
| 68 | #include <vm/vm.h> |
| 69 | #include <vm/pmap.h> |
| 70 | #include <vm/vm_extern.h> |
| 71 | #include <vm/vm_kern.h> |
| 72 | #include <vm/vm_map.h> |
| 73 | #include <vm/vm_object.h> |
| 74 | #include <vm/vm_page2.h> |
| 75 | #include <vm/vm_pager.h> |
| 76 | #include <vm/vm_param.h> |
| 77 | #include <machine/param.h> |
| 78 | #include <machine/pmap.h> |
| 79 | #if defined(__i386__) || defined(__amd64__) |
| 80 | #include <machine/specialreg.h> |
| 81 | #endif |
| 82 | #include <machine/sysarch.h> |
| 83 | #include <sys/endian.h> |
| 84 | #include <sys/mman.h> |
| 85 | #include <sys/rman.h> |
| 86 | #include <sys/memrange.h> |
| 87 | #include <dev/agp/agpvar.h> |
| 88 | #include <sys/agpio.h> |
| 89 | #include <sys/mutex.h> |
| 90 | #include <bus/pci/pcivar.h> |
| 91 | #include <bus/pci/pcireg.h> |
| 92 | |
| 93 | MALLOC_DECLARE(M_DRM); |
| 94 | |
| 95 | #include <uapi_drm/drm.h> |
| 96 | #include <uapi_drm/drm_sarea.h> |
| 97 | |
| 98 | #include <linux/atomic.h> |
| 99 | #include <linux/bug.h> |
| 100 | #include <linux/err.h> |
| 101 | #include <linux/idr.h> |
| 102 | #include <linux/pci.h> |
| 103 | #include <linux/jiffies.h> |
| 104 | #include <linux/kernel.h> |
| 105 | #include <linux/kref.h> |
| 106 | #include <linux/list.h> |
| 107 | #include <linux/mm.h> |
| 108 | #include <linux/moduleparam.h> |
| 109 | #include <linux/mutex.h> |
| 110 | #include <linux/slab.h> |
| 111 | #include <linux/scatterlist.h> |
| 112 | #include <linux/timer.h> |
| 113 | #include <asm/io.h> |
| 114 | #include <linux/types.h> |
| 115 | #include <linux/wait.h> |
| 116 | #include <linux/workqueue.h> |
| 117 | |
| 118 | #include <asm/uaccess.h> |
| 119 | |
| 120 | struct drm_file; |
| 121 | struct drm_device; |
| 122 | |
| 123 | #include <drm/drm_os_linux.h> |
| 124 | #include <drm/drm_hashtab.h> |
| 125 | #include <drm/drm_mm.h> |
| 126 | |
| 127 | #define DRM_UT_CORE 0x01 |
| 128 | #define DRM_UT_DRIVER 0x02 |
| 129 | #define DRM_UT_KMS 0x04 |
| 130 | #define DRM_UT_PRIME 0x08 |
| 131 | |
| 132 | #include "opt_drm.h" |
| 133 | #ifdef DRM_DEBUG |
| 134 | #undef DRM_DEBUG |
| 135 | #define DRM_DEBUG_DEFAULT_ON 1 |
| 136 | #endif /* DRM_DEBUG */ |
| 137 | |
| 138 | #define DRM_DEBUGBITS_DEBUG 0x1 |
| 139 | #define DRM_DEBUGBITS_KMS 0x2 |
| 140 | #define DRM_DEBUGBITS_FAILED_IOCTL 0x4 |
| 141 | |
| 142 | #undef DRM_LINUX |
| 143 | #define DRM_LINUX 0 |
| 144 | |
| 145 | /***********************************************************************/ |
| 146 | /** \name DRM template customization defaults */ |
| 147 | /*@{*/ |
| 148 | |
| 149 | /* driver capabilities and requirements mask */ |
| 150 | #define DRIVER_USE_AGP 0x1 |
| 151 | #define DRIVER_REQUIRE_AGP 0x2 |
| 152 | #define DRIVER_USE_MTRR 0x4 |
| 153 | #define DRIVER_PCI_DMA 0x8 |
| 154 | #define DRIVER_SG 0x10 |
| 155 | #define DRIVER_HAVE_DMA 0x20 |
| 156 | #define DRIVER_HAVE_IRQ 0x40 |
| 157 | #define DRIVER_IRQ_SHARED 0x80 |
| 158 | #define DRIVER_IRQ_VBL 0x100 |
| 159 | #define DRIVER_DMA_QUEUE 0x200 |
| 160 | #define DRIVER_FB_DMA 0x400 |
| 161 | #define DRIVER_IRQ_VBL2 0x800 |
| 162 | #define DRIVER_GEM 0x1000 |
| 163 | #define DRIVER_MODESET 0x2000 |
| 164 | #define DRIVER_PRIME 0x4000 |
| 165 | #define DRIVER_LOCKLESS_IRQ 0x8000 |
| 166 | |
| 167 | /***********************************************************************/ |
| 168 | /** \name Begin the DRM... */ |
| 169 | /*@{*/ |
| 170 | |
| 171 | #define DRM_HASH_SIZE 16 /* Size of key hash table */ |
| 172 | #define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ |
| 173 | #define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ |
| 174 | |
| 175 | #define DRM_GEM_MAPPING_MASK (3ULL << 62) |
| 176 | #define DRM_GEM_MAPPING_KEY (2ULL << 62) /* Non-canonical address form */ |
| 177 | #define DRM_GEM_MAX_IDX 0x3fffff |
| 178 | #define DRM_GEM_MAPPING_IDX(o) (((o) >> 40) & DRM_GEM_MAX_IDX) |
| 179 | #define DRM_GEM_MAPPING_OFF(i) (((uint64_t)(i)) << 40) |
| 180 | #define DRM_GEM_MAPPING_MAPOFF(o) \ |
| 181 | ((o) & ~(DRM_GEM_MAPPING_OFF(DRM_GEM_MAX_IDX) | DRM_GEM_MAPPING_KEY)) |
| 182 | |
| 183 | SYSCTL_DECL(_hw_drm); |
| 184 | |
| 185 | #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) |
| 186 | |
| 187 | /***********************************************************************/ |
| 188 | /** \name Internal types and structures */ |
| 189 | /*@{*/ |
| 190 | |
| 191 | #define DRM_ARRAY_SIZE(x) NELEM(x) |
| 192 | #define DRM_MIN(a,b) ((a)<(b)?(a):(b)) |
| 193 | #define DRM_MAX(a,b) ((a)>(b)?(a):(b)) |
| 194 | |
| 195 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) |
| 196 | |
| 197 | #define __OS_HAS_AGP 1 |
| 198 | |
| 199 | #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) |
| 200 | #define DRM_DEV_UID 0 |
| 201 | #define DRM_DEV_GID 0 |
| 202 | |
| 203 | #define DRM_WAKEUP(w) wakeup((void *)w) |
| 204 | #define DRM_WAKEUP_INT(w) wakeup(w) |
| 205 | #define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) |
| 206 | |
| 207 | #define DRM_CURPROC curthread |
| 208 | #define DRM_STRUCTPROC struct thread |
| 209 | #define DRM_CURRENTPID (curproc != NULL ? curproc->p_pid : -1) |
| 210 | #define DRM_LOCK(dev) lockmgr(&(dev)->struct_mutex, LK_EXCLUSIVE) |
| 211 | #define DRM_UNLOCK(dev) lockmgr(&(dev)->struct_mutex, LK_RELEASE) |
| 212 | #define DRM_LOCK_SLEEP(dev, chan, flags, msg, timeout) \ |
| 213 | (lksleep((chan), &(dev)->struct_mutex, (flags), (msg), (timeout))) |
| 214 | #if defined(INVARIANTS) |
| 215 | #define DRM_LOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) != 0); |
| 216 | #define DRM_UNLOCK_ASSERT(dev) KKASSERT(lockstatus(&(dev)->struct_mutex, curthread) == 0); |
| 217 | #else |
| 218 | #define DRM_LOCK_ASSERT(d) |
| 219 | #define DRM_UNLOCK_ASSERT(d) |
| 220 | #endif |
| 221 | |
| 222 | #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) |
| 223 | |
| 224 | #define DRM_IRQ_ARGS void *arg |
| 225 | typedef void irqreturn_t; |
| 226 | #define IRQ_HANDLED /* nothing */ |
| 227 | #define IRQ_NONE /* nothing */ |
| 228 | |
| 229 | enum { |
| 230 | DRM_IS_NOT_AGP, |
| 231 | DRM_IS_AGP, |
| 232 | DRM_MIGHT_BE_AGP |
| 233 | }; |
| 234 | #define DRM_AGP_MEM struct agp_memory_info |
| 235 | |
| 236 | #define drm_get_device_from_kdev(_kdev) (_kdev->si_drv1) |
| 237 | |
| 238 | /* DRM_SUSER returns true if the user is superuser */ |
| 239 | #define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) |
| 240 | #define DRM_AGP_FIND_DEVICE() agp_find_device() |
| 241 | #define DRM_MTRR_WC MDF_WRITECOMBINE |
| 242 | |
| 243 | /* DRM_READMEMORYBARRIER() prevents reordering of reads. |
| 244 | * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. |
| 245 | * DRM_MEMORYBARRIER() prevents reordering of reads and writes. |
| 246 | */ |
| 247 | #define DRM_READMEMORYBARRIER() cpu_lfence() |
| 248 | #define DRM_WRITEMEMORYBARRIER() cpu_sfence() |
| 249 | #define DRM_MEMORYBARRIER() cpu_mfence() |
| 250 | |
| 251 | #define DRM_VERIFYAREA_READ( uaddr, size ) \ |
| 252 | (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) |
| 253 | |
| 254 | #define DRM_COPY_TO_USER(user, kern, size) \ |
| 255 | copyout(kern, user, size) |
| 256 | #define DRM_COPY_FROM_USER(kern, user, size) \ |
| 257 | copyin(user, kern, size) |
| 258 | #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ |
| 259 | copyin(arg2, arg1, arg3) |
| 260 | #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ |
| 261 | copyout(arg2, arg1, arg3) |
| 262 | #define DRM_GET_USER_UNCHECKED(val, uaddr) \ |
| 263 | ((val) = fuword32(uaddr), 0) |
| 264 | |
| 265 | #define drm_can_sleep() (DRM_HZ & 1) |
| 266 | |
| 267 | #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ |
| 268 | (_map) = (_dev)->context_sareas[_ctx]; \ |
| 269 | } while(0) |
| 270 | |
| 271 | #define LOCK_TEST_WITH_RETURN(dev, file_priv) \ |
| 272 | do { \ |
| 273 | if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ |
| 274 | dev->lock.file_priv != file_priv) { \ |
| 275 | DRM_ERROR("%s called without lock held\n", \ |
| 276 | __FUNCTION__); \ |
| 277 | return EINVAL; \ |
| 278 | } \ |
| 279 | } while (0) |
| 280 | |
| 281 | /* Returns -errno to shared code */ |
| 282 | #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ |
| 283 | for ( ret = 0 ; !ret && !(condition) ; ) { \ |
| 284 | DRM_UNLOCK(dev); \ |
| 285 | lwkt_serialize_enter(&dev->irq_lock); \ |
| 286 | if (!(condition)) { \ |
| 287 | tsleep_interlock(&(queue), PCATCH); \ |
| 288 | lwkt_serialize_exit(&dev->irq_lock); \ |
| 289 | ret = -tsleep(&(queue), PCATCH | PINTERLOCKED, \ |
| 290 | "drmwtq", (timeout)); \ |
| 291 | } else { \ |
| 292 | lwkt_serialize_exit(&dev->irq_lock); \ |
| 293 | } \ |
| 294 | DRM_LOCK(dev); \ |
| 295 | } |
| 296 | |
| 297 | __inline static void |
| 298 | vm_page_unhold_pages(vm_page_t *ma, int count) |
| 299 | { |
| 300 | int i; |
| 301 | |
| 302 | for (i = 0; i < count; i++) |
| 303 | vm_page_unhold(ma[i]); |
| 304 | } |
| 305 | |
| 306 | int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end, |
| 307 | vm_memattr_t memattr); |
| 308 | void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end); |
| 309 | vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa); |
| 310 | |
| 311 | #define DRM_ERROR(fmt, ...) \ |
| 312 | kprintf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ |
| 313 | DRM_CURRENTPID, __func__ , ##__VA_ARGS__) |
| 314 | |
| 315 | #define DRM_INFO(fmt, ...) kprintf("info: [" DRM_NAME "] " fmt , ##__VA_ARGS__) |
| 316 | |
| 317 | #define DRM_DEBUG(fmt, ...) do { \ |
| 318 | if ((drm_debug & DRM_DEBUGBITS_DEBUG) != 0) \ |
| 319 | kprintf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ |
| 320 | __func__ , ##__VA_ARGS__); \ |
| 321 | } while (0) |
| 322 | |
| 323 | #define DRM_DEBUG_KMS(fmt, ...) do { \ |
| 324 | if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ |
| 325 | kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ |
| 326 | __func__ , ##__VA_ARGS__); \ |
| 327 | } while (0) |
| 328 | |
| 329 | #define DRM_DEBUG_DRIVER(fmt, ...) do { \ |
| 330 | if ((drm_debug & DRM_DEBUGBITS_KMS) != 0) \ |
| 331 | kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID,\ |
| 332 | __func__ , ##__VA_ARGS__); \ |
| 333 | } while (0) |
| 334 | |
| 335 | #define DRM_LOG_KMS(fmt, ...) do { \ |
| 336 | kprintf("[" DRM_NAME ":KMS:pid%d:%s] " fmt, DRM_CURRENTPID, \ |
| 337 | __func__ , ##__VA_ARGS__); \ |
| 338 | } while (0) |
| 339 | |
| 340 | #define dev_dbg(dev, fmt, ...) do { \ |
| 341 | if ((drm_debug& DRM_DEBUGBITS_KMS) != 0) { \ |
| 342 | device_printf((dev), "debug: " fmt, ## __VA_ARGS__); \ |
| 343 | } \ |
| 344 | } while (0) |
| 345 | |
| 346 | typedef struct drm_pci_id_list |
| 347 | { |
| 348 | int vendor; |
| 349 | int device; |
| 350 | long driver_private; |
| 351 | char *name; |
| 352 | } drm_pci_id_list_t; |
| 353 | |
| 354 | struct drm_msi_blacklist_entry |
| 355 | { |
| 356 | int vendor; |
| 357 | int device; |
| 358 | }; |
| 359 | |
| 360 | #define DRM_IOCTL_NR(n) ((n) & 0xff) |
| 361 | |
| 362 | #define DRM_AUTH 0x1 |
| 363 | #define DRM_MASTER 0x2 |
| 364 | #define DRM_ROOT_ONLY 0x4 |
| 365 | #define DRM_CONTROL_ALLOW 0x8 |
| 366 | #define DRM_UNLOCKED 0x10 |
| 367 | |
| 368 | typedef struct drm_ioctl_desc { |
| 369 | unsigned long cmd; |
| 370 | int (*func)(struct drm_device *dev, void *data, |
| 371 | struct drm_file *file_priv); |
| 372 | int flags; |
| 373 | unsigned int cmd_drv; |
| 374 | } drm_ioctl_desc_t; |
| 375 | |
| 376 | /** |
| 377 | * Creates a driver or general drm_ioctl_desc array entry for the given |
| 378 | * ioctl, for use by drm_ioctl(). |
| 379 | */ |
| 380 | #define DRM_IOCTL_DEF(ioctl, func, flags) \ |
| 381 | [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags} |
| 382 | |
| 383 | #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ |
| 384 | [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} |
| 385 | |
| 386 | typedef struct drm_magic_entry { |
| 387 | drm_magic_t magic; |
| 388 | struct drm_file *priv; |
| 389 | struct drm_magic_entry *next; |
| 390 | } drm_magic_entry_t; |
| 391 | |
| 392 | typedef struct drm_magic_head { |
| 393 | struct drm_magic_entry *head; |
| 394 | struct drm_magic_entry *tail; |
| 395 | } drm_magic_head_t; |
| 396 | |
| 397 | typedef struct drm_buf { |
| 398 | int idx; /**< Index into master buflist */ |
| 399 | int total; /**< Buffer size */ |
| 400 | int order; /**< log-base-2(total) */ |
| 401 | int used; /**< Amount of buffer in use (for DMA) */ |
| 402 | unsigned long offset; /**< Byte offset (used internally) */ |
| 403 | void *address; /**< Address of buffer */ |
| 404 | unsigned long bus_address; /**< Bus address of buffer */ |
| 405 | struct drm_buf *next; /**< Kernel-only: used for free list */ |
| 406 | __volatile__ int waiting; /**< On kernel DMA queue */ |
| 407 | __volatile__ int pending; /**< On hardware DMA queue */ |
| 408 | struct drm_file *file_priv; /**< Private of holding file descr */ |
| 409 | int context; /**< Kernel queue for this buffer */ |
| 410 | int while_locked; /**< Dispatch this buffer while locked */ |
| 411 | enum { |
| 412 | DRM_LIST_NONE = 0, |
| 413 | DRM_LIST_FREE = 1, |
| 414 | DRM_LIST_WAIT = 2, |
| 415 | DRM_LIST_PEND = 3, |
| 416 | DRM_LIST_PRIO = 4, |
| 417 | DRM_LIST_RECLAIM = 5 |
| 418 | } list; /**< Which list we're on */ |
| 419 | |
| 420 | int dev_priv_size; /**< Size of buffer private storage */ |
| 421 | void *dev_private; /**< Per-buffer private storage */ |
| 422 | } drm_buf_t; |
| 423 | |
| 424 | struct drm_freelist { |
| 425 | int initialized; /* Freelist in use */ |
| 426 | atomic_t count; /* Number of free buffers */ |
| 427 | drm_buf_t *next; /* End pointer */ |
| 428 | |
| 429 | wait_queue_head_t waiting; /**< Processes waiting on free bufs */ |
| 430 | int low_mark; /* Low water mark */ |
| 431 | int high_mark; /* High water mark */ |
| 432 | }; |
| 433 | |
| 434 | typedef struct drm_dma_handle { |
| 435 | void *vaddr; |
| 436 | bus_addr_t busaddr; |
| 437 | bus_dma_tag_t tag; |
| 438 | bus_dmamap_t map; |
| 439 | } drm_dma_handle_t; |
| 440 | |
| 441 | typedef struct drm_buf_entry { |
| 442 | int buf_size; |
| 443 | int buf_count; |
| 444 | drm_buf_t *buflist; |
| 445 | int seg_count; |
| 446 | drm_dma_handle_t **seglist; |
| 447 | int page_order; |
| 448 | |
| 449 | struct drm_freelist freelist; |
| 450 | } drm_buf_entry_t; |
| 451 | |
| 452 | /* Event queued up for userspace to read */ |
| 453 | struct drm_pending_event { |
| 454 | struct drm_event *event; |
| 455 | struct list_head link; |
| 456 | struct drm_file *file_priv; |
| 457 | pid_t pid; /* pid of requester, no guarantee it's valid by the time |
| 458 | we deliver the event, for tracing only */ |
| 459 | void (*destroy)(struct drm_pending_event *event); |
| 460 | }; |
| 461 | |
| 462 | /* initial implementaton using a linked list - todo hashtab */ |
| 463 | struct drm_prime_file_private { |
| 464 | struct list_head head; |
| 465 | #ifdef DUMBBELL_WIP |
| 466 | struct mutex lock; |
| 467 | #endif /* DUMBBELL_WIP */ |
| 468 | }; |
| 469 | |
| 470 | /** File private data */ |
| 471 | struct drm_file { |
| 472 | int authenticated; |
| 473 | struct drm_device *dev; |
| 474 | int master; |
| 475 | pid_t pid; |
| 476 | uid_t uid; |
| 477 | drm_magic_t magic; |
| 478 | unsigned long ioctl_count; |
| 479 | struct list_head lhead; |
| 480 | struct kqinfo dkq; |
| 481 | |
| 482 | /** Mapping of mm object handles to object pointers. */ |
| 483 | struct idr object_idr; |
| 484 | /** Lock for synchronization of access to object_idr. */ |
| 485 | struct lock table_lock; |
| 486 | |
| 487 | void *driver_priv; |
| 488 | |
| 489 | int is_master; |
| 490 | struct drm_master *masterp; |
| 491 | |
| 492 | /** |
| 493 | * fbs - List of framebuffers associated with this file. |
| 494 | * |
| 495 | * Protected by fbs_lock. Note that the fbs list holds a reference on |
| 496 | * the fb object to prevent it from untimely disappearing. |
| 497 | */ |
| 498 | struct list_head fbs; |
| 499 | struct lock fbs_lock; |
| 500 | |
| 501 | wait_queue_head_t event_wait; |
| 502 | struct list_head event_list; |
| 503 | int event_space; |
| 504 | |
| 505 | struct drm_prime_file_private prime; |
| 506 | }; |
| 507 | |
| 508 | /** |
| 509 | * Lock data. |
| 510 | */ |
| 511 | struct drm_lock_data { |
| 512 | struct drm_hw_lock *hw_lock; /**< Hardware lock */ |
| 513 | /** Private of lock holder's file (NULL=kernel) */ |
| 514 | struct drm_file *file_priv; |
| 515 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ |
| 516 | unsigned long lock_time; /**< Time of last lock in jiffies */ |
| 517 | }; |
| 518 | |
| 519 | /* This structure, in the struct drm_device, is always initialized while the |
| 520 | * device |
| 521 | * is open. dev->dma_lock protects the incrementing of dev->buf_use, which |
| 522 | * when set marks that no further bufs may be allocated until device teardown |
| 523 | * occurs (when the last open of the device has closed). The high/low |
| 524 | * watermarks of bufs are only touched by the X Server, and thus not |
| 525 | * concurrently accessed, so no locking is needed. |
| 526 | */ |
| 527 | typedef struct drm_device_dma { |
| 528 | |
| 529 | struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ |
| 530 | int buf_count; /**< total number of buffers */ |
| 531 | struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ |
| 532 | int seg_count; |
| 533 | int page_count; /**< number of pages */ |
| 534 | unsigned long *pagelist; /**< page list */ |
| 535 | unsigned long byte_count; |
| 536 | enum { |
| 537 | _DRM_DMA_USE_AGP = 0x01, |
| 538 | _DRM_DMA_USE_SG = 0x02, |
| 539 | _DRM_DMA_USE_FB = 0x04, |
| 540 | _DRM_DMA_USE_PCI_RO = 0x08 |
| 541 | } flags; |
| 542 | |
| 543 | } drm_device_dma_t; |
| 544 | |
| 545 | typedef struct drm_agp_mem { |
| 546 | void *handle; |
| 547 | unsigned long bound; /* address */ |
| 548 | int pages; |
| 549 | struct drm_agp_mem *prev; |
| 550 | struct drm_agp_mem *next; |
| 551 | } drm_agp_mem_t; |
| 552 | |
| 553 | typedef struct drm_agp_head { |
| 554 | device_t agpdev; |
| 555 | struct agp_info agp_info; |
| 556 | const char *chipset; |
| 557 | drm_agp_mem_t *memory; |
| 558 | unsigned long mode; |
| 559 | int enabled; |
| 560 | int acquired; |
| 561 | unsigned long base; |
| 562 | int agp_mtrr; |
| 563 | int cant_use_aperture; |
| 564 | unsigned long page_mask; |
| 565 | } drm_agp_head_t; |
| 566 | |
| 567 | typedef struct drm_sg_mem { |
| 568 | vm_offset_t vaddr; |
| 569 | vm_paddr_t *busaddr; |
| 570 | vm_pindex_t pages; |
| 571 | } drm_sg_mem_t; |
| 572 | |
| 573 | /** |
| 574 | * Kernel side of a mapping |
| 575 | */ |
| 576 | struct drm_local_map { |
| 577 | resource_size_t offset; /**< Requested physical address (0 for SAREA)*/ |
| 578 | unsigned long size; /**< Requested physical size (bytes) */ |
| 579 | enum drm_map_type type; /**< Type of memory to map */ |
| 580 | enum drm_map_flags flags; /**< Flags */ |
| 581 | void *handle; /**< User-space: "Handle" to pass to mmap() */ |
| 582 | /**< Kernel-space: kernel-virtual address */ |
| 583 | int mtrr; /**< MTRR slot used */ |
| 584 | }; |
| 585 | |
| 586 | typedef struct drm_local_map drm_local_map_t; |
| 587 | |
| 588 | /** |
| 589 | * Mappings list |
| 590 | */ |
| 591 | struct drm_map_list { |
| 592 | struct list_head head; /**< list head */ |
| 593 | struct drm_hash_item hash; |
| 594 | struct drm_local_map *map; /**< mapping */ |
| 595 | uint64_t user_token; |
| 596 | struct drm_master *master; |
| 597 | struct drm_mm_node *file_offset_node; /**< fake offset */ |
| 598 | }; |
| 599 | |
| 600 | /** |
| 601 | * Context handle list |
| 602 | */ |
| 603 | struct drm_ctx_list { |
| 604 | struct list_head head; /**< list head */ |
| 605 | drm_context_t handle; /**< context handle */ |
| 606 | struct drm_file *tag; /**< associated fd private data */ |
| 607 | }; |
| 608 | |
| 609 | struct drm_vblank_info { |
| 610 | wait_queue_head_t queue; /* vblank wait queue */ |
| 611 | atomic_t count; /* number of VBLANK interrupts */ |
| 612 | /* (driver must alloc the right number of counters) */ |
| 613 | atomic_t refcount; /* number of users of vblank interrupts */ |
| 614 | u32 last; /* protected by dev->vbl_lock, used */ |
| 615 | /* for wraparound handling */ |
| 616 | int enabled; /* so we don't call enable more than */ |
| 617 | /* once per disable */ |
| 618 | int inmodeset; /* Display driver is setting mode */ |
| 619 | }; |
| 620 | |
| 621 | /* location of GART table */ |
| 622 | #define DRM_ATI_GART_MAIN 1 |
| 623 | #define DRM_ATI_GART_FB 2 |
| 624 | |
| 625 | #define DRM_ATI_GART_PCI 1 |
| 626 | #define DRM_ATI_GART_PCIE 2 |
| 627 | #define DRM_ATI_GART_IGP 3 |
| 628 | |
| 629 | struct drm_ati_pcigart_info { |
| 630 | int gart_table_location; |
| 631 | int gart_reg_if; |
| 632 | void *addr; |
| 633 | dma_addr_t bus_addr; |
| 634 | dma_addr_t table_mask; |
| 635 | dma_addr_t member_mask; |
| 636 | struct drm_dma_handle *table_handle; |
| 637 | drm_local_map_t mapping; |
| 638 | int table_size; |
| 639 | struct drm_dma_handle *dmah; /* handle for ATI PCIGART table */ |
| 640 | }; |
| 641 | |
| 642 | /** |
| 643 | * GEM specific mm private for tracking GEM objects |
| 644 | */ |
| 645 | struct drm_gem_mm { |
| 646 | struct drm_open_hash offset_hash; /**< User token hash table for maps */ |
| 647 | struct unrhdr *idxunr; |
| 648 | }; |
| 649 | |
| 650 | struct drm_gem_object { |
| 651 | /** Reference count of this object */ |
| 652 | struct kref refcount; |
| 653 | |
| 654 | /** Handle count of this object. Each handle also holds a reference */ |
| 655 | atomic_t handle_count; /* number of handles on this object */ |
| 656 | |
| 657 | /** Related drm device */ |
| 658 | struct drm_device *dev; |
| 659 | |
| 660 | /** File representing the shmem storage: filp in Linux parlance */ |
| 661 | vm_object_t vm_obj; |
| 662 | |
| 663 | bool on_map; |
| 664 | struct drm_hash_item map_list; |
| 665 | |
| 666 | /** |
| 667 | * Size of the object, in bytes. Immutable over the object's |
| 668 | * lifetime. |
| 669 | */ |
| 670 | size_t size; |
| 671 | |
| 672 | /** |
| 673 | * Global name for this object, starts at 1. 0 means unnamed. |
| 674 | * Access is covered by the object_name_lock in the related drm_device |
| 675 | */ |
| 676 | int name; |
| 677 | |
| 678 | /** |
| 679 | * Memory domains. These monitor which caches contain read/write data |
| 680 | * related to the object. When transitioning from one set of domains |
| 681 | * to another, the driver is called to ensure that caches are suitably |
| 682 | * flushed and invalidated |
| 683 | */ |
| 684 | uint32_t read_domains; |
| 685 | uint32_t write_domain; |
| 686 | |
| 687 | /** |
| 688 | * While validating an exec operation, the |
| 689 | * new read/write domain values are computed here. |
| 690 | * They will be transferred to the above values |
| 691 | * at the point that any cache flushing occurs |
| 692 | */ |
| 693 | uint32_t pending_read_domains; |
| 694 | uint32_t pending_write_domain; |
| 695 | |
| 696 | void *driver_private; |
| 697 | |
| 698 | #ifdef DUMBBELL_WIP |
| 699 | /* dma buf exported from this GEM object */ |
| 700 | struct dma_buf *export_dma_buf; |
| 701 | |
| 702 | /* dma buf attachment backing this object */ |
| 703 | struct dma_buf_attachment *import_attach; |
| 704 | #endif /* DUMBBELL_WIP */ |
| 705 | }; |
| 706 | |
| 707 | #include "drm_crtc.h" |
| 708 | |
| 709 | /* per-master structure */ |
| 710 | struct drm_master { |
| 711 | |
| 712 | struct kref refcount; /* refcount for this master */ |
| 713 | |
| 714 | struct list_head head; /**< each minor contains a list of masters */ |
| 715 | struct drm_minor *minor; /**< link back to minor we are a master for */ |
| 716 | |
| 717 | char *unique; /**< Unique identifier: e.g., busid */ |
| 718 | int unique_len; /**< Length of unique field */ |
| 719 | int unique_size; /**< amount allocated */ |
| 720 | |
| 721 | int blocked; /**< Blocked due to VC switch? */ |
| 722 | |
| 723 | /** \name Authentication */ |
| 724 | /*@{ */ |
| 725 | struct drm_open_hash magiclist; |
| 726 | struct list_head magicfree; |
| 727 | /*@} */ |
| 728 | |
| 729 | struct drm_lock_data lock; /**< Information on hardware lock */ |
| 730 | |
| 731 | void *driver_priv; /**< Private structure for driver to use */ |
| 732 | }; |
| 733 | |
| 734 | /* Size of ringbuffer for vblank timestamps. Just double-buffer |
| 735 | * in initial implementation. |
| 736 | */ |
| 737 | #define DRM_VBLANKTIME_RBSIZE 2 |
| 738 | |
| 739 | /* Flags and return codes for get_vblank_timestamp() driver function. */ |
| 740 | #define DRM_CALLED_FROM_VBLIRQ 1 |
| 741 | #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) |
| 742 | #define DRM_VBLANKTIME_INVBL (1 << 1) |
| 743 | |
| 744 | /* get_scanout_position() return flags */ |
| 745 | #define DRM_SCANOUTPOS_VALID (1 << 0) |
| 746 | #define DRM_SCANOUTPOS_INVBL (1 << 1) |
| 747 | #define DRM_SCANOUTPOS_ACCURATE (1 << 2) |
| 748 | |
| 749 | #ifndef DMA_BIT_MASK |
| 750 | #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1) |
| 751 | #endif |
| 752 | |
| 753 | #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) |
| 754 | |
| 755 | struct drm_driver { |
| 756 | int (*load)(struct drm_device *, unsigned long flags); |
| 757 | int (*use_msi)(struct drm_device *, unsigned long flags); |
| 758 | int (*firstopen)(struct drm_device *); |
| 759 | int (*open)(struct drm_device *, struct drm_file *); |
| 760 | void (*preclose)(struct drm_device *, struct drm_file *file_priv); |
| 761 | void (*postclose)(struct drm_device *, struct drm_file *); |
| 762 | void (*lastclose)(struct drm_device *); |
| 763 | int (*unload)(struct drm_device *); |
| 764 | void (*reclaim_buffers_locked)(struct drm_device *, |
| 765 | struct drm_file *file_priv); |
| 766 | int (*dma_ioctl)(struct drm_device *dev, void *data, |
| 767 | struct drm_file *file_priv); |
| 768 | void (*dma_ready)(struct drm_device *); |
| 769 | int (*dma_quiescent)(struct drm_device *); |
| 770 | int (*dma_flush_block_and_flush)(struct drm_device *, int context, |
| 771 | enum drm_lock_flags flags); |
| 772 | int (*dma_flush_unblock)(struct drm_device *, int context, |
| 773 | enum drm_lock_flags flags); |
| 774 | int (*context_ctor)(struct drm_device *dev, int context); |
| 775 | int (*context_dtor)(struct drm_device *dev, int context); |
| 776 | int (*kernel_context_switch)(struct drm_device *dev, int old, |
| 777 | int new); |
| 778 | int (*kernel_context_switch_unlock)(struct drm_device *dev); |
| 779 | void (*irq_preinstall)(struct drm_device *dev); |
| 780 | int (*irq_postinstall)(struct drm_device *dev); |
| 781 | void (*irq_uninstall)(struct drm_device *dev); |
| 782 | void (*irq_handler)(DRM_IRQ_ARGS); |
| 783 | |
| 784 | u32 (*get_vblank_counter)(struct drm_device *dev, int crtc); |
| 785 | int (*enable_vblank)(struct drm_device *dev, int crtc); |
| 786 | void (*disable_vblank)(struct drm_device *dev, int crtc); |
| 787 | int (*get_scanout_position)(struct drm_device *dev, int crtc, |
| 788 | int *vpos, int *hpos); |
| 789 | |
| 790 | int (*get_vblank_timestamp)(struct drm_device *dev, int crtc, |
| 791 | int *max_error, struct timeval *vblank_time, |
| 792 | unsigned flags); |
| 793 | |
| 794 | int (*gem_init_object)(struct drm_gem_object *obj); |
| 795 | void (*gem_free_object)(struct drm_gem_object *obj); |
| 796 | int (*gem_open_object)(struct drm_gem_object *, struct drm_file *); |
| 797 | void (*gem_close_object)(struct drm_gem_object *, struct drm_file *); |
| 798 | |
| 799 | struct cdev_pager_ops *gem_pager_ops; |
| 800 | |
| 801 | int (*dumb_create)(struct drm_file *file_priv, |
| 802 | struct drm_device *dev, struct drm_mode_create_dumb *args); |
| 803 | int (*dumb_map_offset)(struct drm_file *file_priv, |
| 804 | struct drm_device *dev, uint32_t handle, uint64_t *offset); |
| 805 | int (*dumb_destroy)(struct drm_file *file_priv, |
| 806 | struct drm_device *dev, uint32_t handle); |
| 807 | |
| 808 | int (*sysctl_init)(struct drm_device *dev, |
| 809 | struct sysctl_ctx_list *ctx, struct sysctl_oid *top); |
| 810 | void (*sysctl_cleanup)(struct drm_device *dev); |
| 811 | |
| 812 | drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ |
| 813 | |
| 814 | /** |
| 815 | * Called by \c drm_device_is_agp. Typically used to determine if a |
| 816 | * card is really attached to AGP or not. |
| 817 | * |
| 818 | * \param dev DRM device handle |
| 819 | * |
| 820 | * \returns |
| 821 | * One of three values is returned depending on whether or not the |
| 822 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP |
| 823 | * (return of 1), or may or may not be AGP (return of 2). |
| 824 | */ |
| 825 | int (*device_is_agp) (struct drm_device * dev); |
| 826 | |
| 827 | drm_ioctl_desc_t *ioctls; |
| 828 | #ifdef COMPAT_FREEBSD32 |
| 829 | drm_ioctl_desc_t *compat_ioctls; |
| 830 | int *compat_ioctls_nr; |
| 831 | #endif |
| 832 | |
| 833 | int buf_priv_size; |
| 834 | |
| 835 | int major; |
| 836 | int minor; |
| 837 | int patchlevel; |
| 838 | const char *name; /* Simple driver name */ |
| 839 | const char *desc; /* Longer driver name */ |
| 840 | const char *date; /* Date of last major changes. */ |
| 841 | |
| 842 | u32 driver_features; |
| 843 | int num_ioctls; |
| 844 | }; |
| 845 | |
| 846 | /** |
| 847 | * DRM minor structure. This structure represents a drm minor number. |
| 848 | */ |
| 849 | struct drm_minor { |
| 850 | int index; /**< Minor device number */ |
| 851 | int type; /**< Control or render */ |
| 852 | device_t kdev; /**< OS device */ |
| 853 | struct drm_device *dev; |
| 854 | |
| 855 | struct drm_master *master; /* currently active master for this node */ |
| 856 | struct list_head master_list; |
| 857 | struct drm_mode_group mode_group; |
| 858 | }; |
| 859 | |
| 860 | /* mode specified on the command line */ |
| 861 | struct drm_cmdline_mode { |
| 862 | bool specified; |
| 863 | bool refresh_specified; |
| 864 | bool bpp_specified; |
| 865 | int xres, yres; |
| 866 | int bpp; |
| 867 | int refresh; |
| 868 | bool rb; |
| 869 | bool interlace; |
| 870 | bool cvt; |
| 871 | bool margins; |
| 872 | enum drm_connector_force force; |
| 873 | }; |
| 874 | |
| 875 | |
| 876 | struct drm_pending_vblank_event { |
| 877 | struct drm_pending_event base; |
| 878 | int pipe; |
| 879 | struct drm_event_vblank event; |
| 880 | }; |
| 881 | |
| 882 | struct drm_sysctl_info { |
| 883 | struct sysctl_ctx_list ctx; |
| 884 | char name[2]; |
| 885 | }; |
| 886 | |
| 887 | /* Length for the array of resource pointers for drm_get_resource_*. */ |
| 888 | #define DRM_MAX_PCI_RESOURCE 6 |
| 889 | |
| 890 | /** |
| 891 | * DRM device structure. This structure represent a complete card that |
| 892 | * may contain multiple heads. |
| 893 | */ |
| 894 | struct drm_device { |
| 895 | drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ |
| 896 | |
| 897 | uint16_t pci_subdevice; /* PCI subsystem device id */ |
| 898 | uint16_t pci_subvendor; /* PCI subsystem vendor id */ |
| 899 | |
| 900 | char *unique; /* Unique identifier: e.g., busid */ |
| 901 | int unique_len; /* Length of unique field */ |
| 902 | struct cdev *devnode; /* Device number for mknod */ |
| 903 | int if_version; /* Highest interface version set */ |
| 904 | |
| 905 | int flags; /* Flags to open(2) */ |
| 906 | |
| 907 | /* Locks */ |
| 908 | struct spinlock dma_lock; /* protects dev->dma */ |
| 909 | struct lwkt_serialize irq_lock; /* protects irq condition checks */ |
| 910 | struct lock dev_lock; /* protects everything else */ |
| 911 | |
| 912 | /** \name Locks */ |
| 913 | /*@{ */ |
| 914 | struct lock struct_mutex; /**< For others */ |
| 915 | /*@} */ |
| 916 | |
| 917 | /** \name Usage Counters */ |
| 918 | /*@{ */ |
| 919 | int open_count; /* Outstanding files open */ |
| 920 | int buf_use; /* Buffers in use -- cannot alloc */ |
| 921 | /*@} */ |
| 922 | |
| 923 | |
| 924 | /** \name Performance counters */ |
| 925 | /*@{ */ |
| 926 | unsigned long counters; |
| 927 | enum drm_stat_type types[15]; |
| 928 | atomic_t counts[15]; |
| 929 | /*@} */ |
| 930 | |
| 931 | /* Authentication */ |
| 932 | drm_magic_head_t magiclist[DRM_HASH_SIZE]; |
| 933 | |
| 934 | struct list_head filelist; |
| 935 | |
| 936 | /** \name Memory management */ |
| 937 | /*@{ */ |
| 938 | struct list_head maplist; /**< Linked list of regions */ |
| 939 | int map_count; /**< Number of mappable regions */ |
| 940 | struct drm_open_hash map_hash; /**< User token hash table for maps */ |
| 941 | |
| 942 | /** \name Context handle management */ |
| 943 | /*@{ */ |
| 944 | struct list_head ctxlist; /**< Linked list of context handles */ |
| 945 | int ctx_count; /**< Number of context handles */ |
| 946 | struct lock ctxlist_mutex; /**< For ctxlist */ |
| 947 | |
| 948 | struct idr ctx_idr; |
| 949 | |
| 950 | /*@} */ |
| 951 | |
| 952 | struct drm_lock_data lock; /* Information on hardware lock */ |
| 953 | |
| 954 | /* DMA queues (contexts) */ |
| 955 | drm_device_dma_t *dma; /* Optional pointer for DMA support */ |
| 956 | |
| 957 | int irq; /* Interrupt used by board */ |
| 958 | int msi_enabled; /* MSI enabled */ |
| 959 | int irqrid; /* Interrupt used by board */ |
| 960 | struct resource *irqr; /* Resource for interrupt used by board */ |
| 961 | void *irqh; /* Handle from bus_setup_intr */ |
| 962 | |
| 963 | /* Storage of resource pointers for drm_get_resource_* */ |
| 964 | struct resource *pcir[DRM_MAX_PCI_RESOURCE]; |
| 965 | int pcirid[DRM_MAX_PCI_RESOURCE]; |
| 966 | |
| 967 | int pci_domain; |
| 968 | int pci_bus; |
| 969 | int pci_slot; |
| 970 | int pci_func; |
| 971 | |
| 972 | /** \name Context support */ |
| 973 | /*@{ */ |
| 974 | int irq_enabled; /**< True if irq handler is enabled */ |
| 975 | __volatile__ long context_flag; /**< Context swapping flag */ |
| 976 | __volatile__ long interrupt_flag; /**< Interruption handler flag */ |
| 977 | __volatile__ long dma_flag; /**< DMA dispatch flag */ |
| 978 | wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ |
| 979 | int last_checked; /**< Last context checked for DMA */ |
| 980 | int last_context; /**< Last current context */ |
| 981 | unsigned long last_switch; /**< jiffies at last context switch */ |
| 982 | /*@} */ |
| 983 | |
| 984 | int num_crtcs; |
| 985 | |
| 986 | struct sigio *buf_sigio; /* Processes waiting for SIGIO */ |
| 987 | |
| 988 | /* Sysctl support */ |
| 989 | struct drm_sysctl_info *sysctl; |
| 990 | int sysctl_node_idx; |
| 991 | |
| 992 | |
| 993 | drm_sg_mem_t *sg; /* Scatter gather memory */ |
| 994 | unsigned long *ctx_bitmap; |
| 995 | void *dev_private; |
| 996 | |
| 997 | void *drm_ttm_bdev; |
| 998 | |
| 999 | /* |
| 1000 | * At load time, disabling the vblank interrupt won't be allowed since |
| 1001 | * old clients may not call the modeset ioctl and therefore misbehave. |
| 1002 | * Once the modeset ioctl *has* been called though, we can safely |
| 1003 | * disable them when unused. |
| 1004 | */ |
| 1005 | int vblank_disable_allowed; |
| 1006 | |
| 1007 | wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */ |
| 1008 | atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */ |
| 1009 | struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */ |
| 1010 | struct lock vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ |
| 1011 | struct lock vbl_lock; |
| 1012 | atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */ |
| 1013 | u32 *last_vblank; /* protected by dev->vbl_lock, used */ |
| 1014 | /* for wraparound handling */ |
| 1015 | int *vblank_enabled; /* so we don't call enable more than |
| 1016 | once per disable */ |
| 1017 | int *vblank_inmodeset; /* Display driver is setting mode */ |
| 1018 | u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */ |
| 1019 | struct timer_list vblank_disable_timer; |
| 1020 | |
| 1021 | u32 max_vblank_count; /**< size of vblank counter register */ |
| 1022 | |
| 1023 | /** |
| 1024 | * List of events |
| 1025 | */ |
| 1026 | struct list_head vblank_event_list; |
| 1027 | struct lock event_lock; |
| 1028 | |
| 1029 | /*@} */ |
| 1030 | |
| 1031 | struct drm_agp_head *agp; /**< AGP data */ |
| 1032 | |
| 1033 | struct device *dev; /**< Device structure */ |
| 1034 | struct pci_dev *pdev; /**< PCI device structure */ |
| 1035 | int pci_vendor; /**< PCI vendor id */ |
| 1036 | int pci_device; /**< PCI device id */ |
| 1037 | |
| 1038 | struct drm_driver *driver; |
| 1039 | struct drm_local_map *agp_buffer_map; |
| 1040 | unsigned int agp_buffer_token; |
| 1041 | struct drm_minor *control; /**< Control node for card */ |
| 1042 | struct drm_minor *primary; /**< render type primary screen head */ |
| 1043 | |
| 1044 | struct drm_mode_config mode_config; /**< Current mode config */ |
| 1045 | |
| 1046 | /** \name GEM information */ |
| 1047 | /*@{ */ |
| 1048 | struct lock object_name_lock; |
| 1049 | struct idr object_name_idr; |
| 1050 | /*@} */ |
| 1051 | void *mm_private; |
| 1052 | |
| 1053 | void *sysctl_private; |
| 1054 | char busid_str[128]; |
| 1055 | int modesetting; |
| 1056 | |
| 1057 | int switch_power_state; |
| 1058 | }; |
| 1059 | |
| 1060 | #define DRM_SWITCH_POWER_ON 0 |
| 1061 | #define DRM_SWITCH_POWER_OFF 1 |
| 1062 | #define DRM_SWITCH_POWER_CHANGING 2 |
| 1063 | |
| 1064 | static __inline__ int drm_core_check_feature(struct drm_device *dev, |
| 1065 | int feature) |
| 1066 | { |
| 1067 | return ((dev->driver->driver_features & feature) ? 1 : 0); |
| 1068 | } |
| 1069 | |
| 1070 | #if __OS_HAS_AGP |
| 1071 | static inline int drm_core_has_AGP(struct drm_device *dev) |
| 1072 | { |
| 1073 | return drm_core_check_feature(dev, DRIVER_USE_AGP); |
| 1074 | } |
| 1075 | #else |
| 1076 | #define drm_core_has_AGP(dev) (0) |
| 1077 | #endif |
| 1078 | |
| 1079 | enum dmi_field { |
| 1080 | DMI_NONE, |
| 1081 | DMI_BIOS_VENDOR, |
| 1082 | DMI_BIOS_VERSION, |
| 1083 | DMI_BIOS_DATE, |
| 1084 | DMI_SYS_VENDOR, |
| 1085 | DMI_PRODUCT_NAME, |
| 1086 | DMI_PRODUCT_VERSION, |
| 1087 | DMI_PRODUCT_SERIAL, |
| 1088 | DMI_PRODUCT_UUID, |
| 1089 | DMI_BOARD_VENDOR, |
| 1090 | DMI_BOARD_NAME, |
| 1091 | DMI_BOARD_VERSION, |
| 1092 | DMI_BOARD_SERIAL, |
| 1093 | DMI_BOARD_ASSET_TAG, |
| 1094 | DMI_CHASSIS_VENDOR, |
| 1095 | DMI_CHASSIS_TYPE, |
| 1096 | DMI_CHASSIS_VERSION, |
| 1097 | DMI_CHASSIS_SERIAL, |
| 1098 | DMI_CHASSIS_ASSET_TAG, |
| 1099 | DMI_STRING_MAX, |
| 1100 | }; |
| 1101 | |
| 1102 | struct dmi_strmatch { |
| 1103 | unsigned char slot; |
| 1104 | char substr[79]; |
| 1105 | }; |
| 1106 | |
| 1107 | struct dmi_system_id { |
| 1108 | int (*callback)(const struct dmi_system_id *); |
| 1109 | const char *ident; |
| 1110 | struct dmi_strmatch matches[4]; |
| 1111 | }; |
| 1112 | #define DMI_MATCH(a, b) {(a), (b)} |
| 1113 | bool dmi_check_system(const struct dmi_system_id *); |
| 1114 | |
| 1115 | extern int drm_notyet_flag; |
| 1116 | extern int drm_debug; |
| 1117 | |
| 1118 | extern unsigned int drm_vblank_offdelay; |
| 1119 | extern unsigned int drm_timestamp_precision; |
| 1120 | extern unsigned int drm_timestamp_monotonic; |
| 1121 | |
| 1122 | /* Device setup support (drm_drv.c) */ |
| 1123 | int drm_probe(device_t kdev, drm_pci_id_list_t *idlist); |
| 1124 | int drm_attach(device_t kdev, drm_pci_id_list_t *idlist); |
| 1125 | int drm_create_cdevs(device_t kdev); |
| 1126 | |
| 1127 | d_ioctl_t drm_ioctl; |
| 1128 | extern int drm_lastclose(struct drm_device *dev); |
| 1129 | |
| 1130 | /* Device support (drm_fops.h) */ |
| 1131 | d_open_t drm_open; |
| 1132 | d_close_t drm_close; |
| 1133 | d_read_t drm_read; |
| 1134 | d_kqfilter_t drm_kqfilter; |
| 1135 | int drm_release(device_t kdev); |
| 1136 | |
| 1137 | d_mmap_t drm_mmap; |
| 1138 | d_mmap_single_t drm_mmap_single; |
| 1139 | extern drm_local_map_t *drm_getsarea(struct drm_device *dev); |
| 1140 | |
| 1141 | void drm_cdevpriv_dtor(void *cd); |
| 1142 | |
| 1143 | void drm_event_wakeup(struct drm_pending_event *e); |
| 1144 | |
| 1145 | int drm_add_busid_modesetting(struct drm_device *dev, |
| 1146 | struct sysctl_ctx_list *ctx, struct sysctl_oid *top); |
| 1147 | |
| 1148 | /* File operations helpers (drm_fops.c) */ |
| 1149 | extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, |
| 1150 | DRM_STRUCTPROC *p, |
| 1151 | struct drm_device *dev, |
| 1152 | struct file *fp); |
| 1153 | extern struct drm_file *drm_find_file_by_proc(struct drm_device *dev, |
| 1154 | DRM_STRUCTPROC *p); |
| 1155 | |
| 1156 | #ifdef DUMBBELL_WIP |
| 1157 | extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, |
| 1158 | struct drm_file *file_priv, uint32_t handle, uint32_t flags, |
| 1159 | int *prime_fd); |
| 1160 | extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, |
| 1161 | struct drm_file *file_priv, int prime_fd, uint32_t *handle); |
| 1162 | |
| 1163 | extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, |
| 1164 | struct drm_file *file_priv); |
| 1165 | extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, |
| 1166 | struct drm_file *file_priv); |
| 1167 | |
| 1168 | #ifdef DUMBBELL_WIP |
| 1169 | /* |
| 1170 | * See drm_prime.c |
| 1171 | * -- dumbbell@ |
| 1172 | */ |
| 1173 | extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, vm_page_t *pages, |
| 1174 | dma_addr_t *addrs, int max_pages); |
| 1175 | #endif /* DUMBBELL_WIP */ |
| 1176 | extern struct sg_table *drm_prime_pages_to_sg(vm_page_t *pages, int nr_pages); |
| 1177 | extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); |
| 1178 | |
| 1179 | |
| 1180 | void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); |
| 1181 | void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); |
| 1182 | int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); |
| 1183 | int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); |
| 1184 | void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); |
| 1185 | |
| 1186 | int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); |
| 1187 | int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, |
| 1188 | struct drm_gem_object **obj); |
| 1189 | #endif /* DUMBBELL_WIP */ |
| 1190 | |
| 1191 | /* Memory management support (drm_memory.c) */ |
| 1192 | void drm_mem_init(void); |
| 1193 | void drm_mem_uninit(void); |
| 1194 | void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map); |
| 1195 | void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map); |
| 1196 | void drm_ioremapfree(drm_local_map_t *map); |
| 1197 | int drm_mtrr_add(unsigned long offset, size_t size, int flags); |
| 1198 | int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); |
| 1199 | |
| 1200 | int drm_ctxbitmap_init(struct drm_device *dev); |
| 1201 | void drm_ctxbitmap_cleanup(struct drm_device *dev); |
| 1202 | void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); |
| 1203 | |
| 1204 | /* Locking IOCTL support (drm_lock.c) */ |
| 1205 | int drm_lock_take(struct drm_lock_data *lock_data, |
| 1206 | unsigned int context); |
| 1207 | int drm_lock_transfer(struct drm_lock_data *lock_data, |
| 1208 | unsigned int context); |
| 1209 | int drm_lock_free(struct drm_lock_data *lock_data, |
| 1210 | unsigned int context); |
| 1211 | |
| 1212 | /* |
| 1213 | * These are exported to drivers so that they can implement fencing using |
| 1214 | * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. |
| 1215 | */ |
| 1216 | |
| 1217 | unsigned long drm_get_resource_start(struct drm_device *dev, |
| 1218 | unsigned int resource); |
| 1219 | unsigned long drm_get_resource_len(struct drm_device *dev, |
| 1220 | unsigned int resource); |
| 1221 | void drm_rmmap(struct drm_device *dev, drm_local_map_t *map); |
| 1222 | int drm_order(unsigned long size); |
| 1223 | int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc *request); |
| 1224 | int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc *request); |
| 1225 | extern int drm_addmap(struct drm_device *dev, resource_size_t offset, |
| 1226 | unsigned int size, enum drm_map_type type, |
| 1227 | enum drm_map_flags flags, struct drm_local_map **map_ptr); |
| 1228 | |
| 1229 | /* DMA support (drm_dma.c) */ |
| 1230 | int drm_dma_setup(struct drm_device *dev); |
| 1231 | void drm_dma_takedown(struct drm_device *dev); |
| 1232 | void drm_free_buffer(struct drm_device *dev, drm_buf_t *buf); |
| 1233 | void drm_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv); |
| 1234 | #define drm_core_reclaim_buffers drm_reclaim_buffers |
| 1235 | |
| 1236 | /* IRQ support (drm_irq.h) */ |
| 1237 | int drm_irq_install(struct drm_device *dev); |
| 1238 | int drm_irq_uninstall(struct drm_device *dev); |
| 1239 | void drm_driver_irq_preinstall(struct drm_device *dev); |
| 1240 | void drm_driver_irq_postinstall(struct drm_device *dev); |
| 1241 | void drm_driver_irq_uninstall(struct drm_device *dev); |
| 1242 | |
| 1243 | void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); |
| 1244 | void drm_vblank_post_modeset(struct drm_device *dev, int crtc); |
| 1245 | int drm_modeset_ctl(struct drm_device *dev, void *data, |
| 1246 | struct drm_file *file_priv); |
| 1247 | |
| 1248 | extern int drm_vblank_init(struct drm_device *dev, int num_crtcs); |
| 1249 | extern int drm_wait_vblank(struct drm_device *dev, void *data, |
| 1250 | struct drm_file *filp); |
| 1251 | extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); |
| 1252 | extern u32 drm_vblank_count(struct drm_device *dev, int crtc); |
| 1253 | extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, |
| 1254 | struct timeval *vblanktime); |
| 1255 | extern void drm_send_vblank_event(struct drm_device *dev, int crtc, |
| 1256 | struct drm_pending_vblank_event *e); |
| 1257 | extern bool drm_handle_vblank(struct drm_device *dev, int crtc); |
| 1258 | void drm_handle_vblank_events(struct drm_device *dev, int crtc); |
| 1259 | extern int drm_vblank_get(struct drm_device *dev, int crtc); |
| 1260 | extern void drm_vblank_put(struct drm_device *dev, int crtc); |
| 1261 | extern void drm_vblank_off(struct drm_device *dev, int crtc); |
| 1262 | extern void drm_vblank_cleanup(struct drm_device *dev); |
| 1263 | extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, |
| 1264 | struct timeval *tvblank, unsigned flags); |
| 1265 | extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, |
| 1266 | int crtc, int *max_error, |
| 1267 | struct timeval *vblank_time, |
| 1268 | unsigned flags, |
| 1269 | struct drm_crtc *refcrtc); |
| 1270 | extern void drm_calc_timestamping_constants(struct drm_crtc *crtc); |
| 1271 | |
| 1272 | /* AGP/PCI Express/GART support (drm_agpsupport.c) */ |
| 1273 | int drm_device_is_agp(struct drm_device *dev); |
| 1274 | int drm_device_is_pcie(struct drm_device *dev); |
| 1275 | drm_agp_head_t *drm_agp_init(void); |
| 1276 | int drm_agp_acquire(struct drm_device *dev); |
| 1277 | int drm_agp_release(struct drm_device *dev); |
| 1278 | int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info); |
| 1279 | int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); |
| 1280 | void *drm_agp_allocate_memory(size_t pages, u32 type); |
| 1281 | int drm_agp_free_memory(void *handle); |
| 1282 | int drm_agp_bind_memory(void *handle, off_t start); |
| 1283 | int drm_agp_unbind_memory(void *handle); |
| 1284 | int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); |
| 1285 | int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); |
| 1286 | int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); |
| 1287 | int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); |
| 1288 | |
| 1289 | /* Scatter Gather Support (drm_scatter.c) */ |
| 1290 | void drm_sg_cleanup(drm_sg_mem_t *entry); |
| 1291 | int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request); |
| 1292 | |
| 1293 | /* sysctl support (drm_sysctl.h) */ |
| 1294 | extern int drm_sysctl_init(struct drm_device *dev); |
| 1295 | extern int drm_sysctl_cleanup(struct drm_device *dev); |
| 1296 | |
| 1297 | /* ATI PCIGART support (ati_pcigart.c) */ |
| 1298 | int drm_ati_pcigart_init(struct drm_device *dev, |
| 1299 | struct drm_ati_pcigart_info *gart_info); |
| 1300 | int drm_ati_pcigart_cleanup(struct drm_device *dev, |
| 1301 | struct drm_ati_pcigart_info *gart_info); |
| 1302 | |
| 1303 | /* Cache management (drm_memory.c) */ |
| 1304 | void drm_clflush_pages(vm_page_t *pages, unsigned long num_pages); |
| 1305 | |
| 1306 | /* Locking IOCTL support (drm_drv.c) */ |
| 1307 | int drm_lock(struct drm_device *dev, void *data, |
| 1308 | struct drm_file *file_priv); |
| 1309 | int drm_unlock(struct drm_device *dev, void *data, |
| 1310 | struct drm_file *file_priv); |
| 1311 | int drm_version(struct drm_device *dev, void *data, |
| 1312 | struct drm_file *file_priv); |
| 1313 | int drm_setversion(struct drm_device *dev, void *data, |
| 1314 | struct drm_file *file_priv); |
| 1315 | |
| 1316 | /* Misc. IOCTL support (drm_ioctl.c) */ |
| 1317 | int drm_irq_by_busid(struct drm_device *dev, void *data, |
| 1318 | struct drm_file *file_priv); |
| 1319 | int drm_getunique(struct drm_device *dev, void *data, |
| 1320 | struct drm_file *file_priv); |
| 1321 | int drm_setunique(struct drm_device *dev, void *data, |
| 1322 | struct drm_file *file_priv); |
| 1323 | int drm_getmap(struct drm_device *dev, void *data, |
| 1324 | struct drm_file *file_priv); |
| 1325 | int drm_getclient(struct drm_device *dev, void *data, |
| 1326 | struct drm_file *file_priv); |
| 1327 | int drm_getstats(struct drm_device *dev, void *data, |
| 1328 | struct drm_file *file_priv); |
| 1329 | int drm_getcap(struct drm_device *dev, void *data, |
| 1330 | struct drm_file *file_priv); |
| 1331 | int drm_noop(struct drm_device *dev, void *data, |
| 1332 | struct drm_file *file_priv); |
| 1333 | |
| 1334 | /* Context IOCTL support (drm_context.c) */ |
| 1335 | int drm_resctx(struct drm_device *dev, void *data, |
| 1336 | struct drm_file *file_priv); |
| 1337 | int drm_addctx(struct drm_device *dev, void *data, |
| 1338 | struct drm_file *file_priv); |
| 1339 | int drm_modctx(struct drm_device *dev, void *data, |
| 1340 | struct drm_file *file_priv); |
| 1341 | int drm_getctx(struct drm_device *dev, void *data, |
| 1342 | struct drm_file *file_priv); |
| 1343 | int drm_switchctx(struct drm_device *dev, void *data, |
| 1344 | struct drm_file *file_priv); |
| 1345 | int drm_newctx(struct drm_device *dev, void *data, |
| 1346 | struct drm_file *file_priv); |
| 1347 | int drm_rmctx(struct drm_device *dev, void *data, |
| 1348 | struct drm_file *file_priv); |
| 1349 | int drm_setsareactx(struct drm_device *dev, void *data, |
| 1350 | struct drm_file *file_priv); |
| 1351 | int drm_getsareactx(struct drm_device *dev, void *data, |
| 1352 | struct drm_file *file_priv); |
| 1353 | |
| 1354 | /* Authentication IOCTL support (drm_auth.c) */ |
| 1355 | int drm_getmagic(struct drm_device *dev, void *data, |
| 1356 | struct drm_file *file_priv); |
| 1357 | int drm_authmagic(struct drm_device *dev, void *data, |
| 1358 | struct drm_file *file_priv); |
| 1359 | |
| 1360 | /* Cache management (drm_cache.c) */ |
| 1361 | void drm_clflush_virt_range(char *addr, unsigned long length); |
| 1362 | |
| 1363 | /* Buffer management support (drm_bufs.c) */ |
| 1364 | int drm_addmap_ioctl(struct drm_device *dev, void *data, |
| 1365 | struct drm_file *file_priv); |
| 1366 | int drm_rmmap_ioctl(struct drm_device *dev, void *data, |
| 1367 | struct drm_file *file_priv); |
| 1368 | int drm_addbufs(struct drm_device *dev, void *data, |
| 1369 | struct drm_file *file_priv); |
| 1370 | int drm_infobufs(struct drm_device *dev, void *data, |
| 1371 | struct drm_file *file_priv); |
| 1372 | int drm_markbufs(struct drm_device *dev, void *data, |
| 1373 | struct drm_file *file_priv); |
| 1374 | int drm_freebufs(struct drm_device *dev, void *data, |
| 1375 | struct drm_file *file_priv); |
| 1376 | int drm_mapbufs(struct drm_device *dev, void *data, |
| 1377 | struct drm_file *file_priv); |
| 1378 | |
| 1379 | /* DMA support (drm_dma.c) */ |
| 1380 | int drm_dma(struct drm_device *dev, void *data, struct drm_file *file_priv); |
| 1381 | |
| 1382 | /* IRQ support (drm_irq.c) */ |
| 1383 | int drm_control(struct drm_device *dev, void *data, |
| 1384 | struct drm_file *file_priv); |
| 1385 | |
| 1386 | /* AGP/GART support (drm_agpsupport.c) */ |
| 1387 | int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, |
| 1388 | struct drm_file *file_priv); |
| 1389 | int drm_agp_release_ioctl(struct drm_device *dev, void *data, |
| 1390 | struct drm_file *file_priv); |
| 1391 | int drm_agp_enable_ioctl(struct drm_device *dev, void *data, |
| 1392 | struct drm_file *file_priv); |
| 1393 | int drm_agp_info_ioctl(struct drm_device *dev, void *data, |
| 1394 | struct drm_file *file_priv); |
| 1395 | int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, |
| 1396 | struct drm_file *file_priv); |
| 1397 | int drm_agp_free_ioctl(struct drm_device *dev, void *data, |
| 1398 | struct drm_file *file_priv); |
| 1399 | int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, |
| 1400 | struct drm_file *file_priv); |
| 1401 | int drm_agp_bind_ioctl(struct drm_device *dev, void *data, |
| 1402 | struct drm_file *file_priv); |
| 1403 | |
| 1404 | /* Stub support (drm_stub.h) */ |
| 1405 | extern int drm_setmaster_ioctl(struct drm_device *dev, void *data, |
| 1406 | struct drm_file *file_priv); |
| 1407 | extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data, |
| 1408 | struct drm_file *file_priv); |
| 1409 | |
| 1410 | /* Scatter Gather Support (drm_scatter.c) */ |
| 1411 | int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, |
| 1412 | struct drm_file *file_priv); |
| 1413 | int drm_sg_free(struct drm_device *dev, void *data, |
| 1414 | struct drm_file *file_priv); |
| 1415 | |
| 1416 | /* consistent PCI memory functions (drm_pci.c) */ |
| 1417 | extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size, |
| 1418 | size_t align); |
| 1419 | void drm_pci_free(struct drm_device *dev, drm_dma_handle_t *dmah); |
| 1420 | |
| 1421 | /* sysfs support (drm_sysfs.c) */ |
| 1422 | struct drm_sysfs_class; |
| 1423 | extern struct class *drm_sysfs_create(struct module *owner, char *name); |
| 1424 | extern void drm_sysfs_destroy(void); |
| 1425 | extern int drm_sysfs_device_add(struct drm_minor *minor); |
| 1426 | extern void drm_sysfs_hotplug_event(struct drm_device *dev); |
| 1427 | extern void drm_sysfs_device_remove(struct drm_minor *minor); |
| 1428 | extern int drm_sysfs_connector_add(struct drm_connector *connector); |
| 1429 | extern void drm_sysfs_connector_remove(struct drm_connector *connector); |
| 1430 | |
| 1431 | /* Graphics Execution Manager library functions (drm_gem.c) */ |
| 1432 | int drm_gem_init(struct drm_device *dev); |
| 1433 | void drm_gem_destroy(struct drm_device *dev); |
| 1434 | void drm_gem_object_release(struct drm_gem_object *obj); |
| 1435 | void drm_gem_object_free(struct kref *kref); |
| 1436 | |
| 1437 | int drm_gem_close_ioctl(struct drm_device *dev, void *data, |
| 1438 | struct drm_file *file_priv); |
| 1439 | int drm_gem_flink_ioctl(struct drm_device *dev, void *data, |
| 1440 | struct drm_file *file_priv); |
| 1441 | int drm_gem_open_ioctl(struct drm_device *dev, void *data, |
| 1442 | struct drm_file *file_priv); |
| 1443 | void drm_gem_object_handle_free(struct drm_gem_object *obj); |
| 1444 | |
| 1445 | #include <drm/drm_global.h> |
| 1446 | |
| 1447 | static inline void |
| 1448 | drm_gem_object_reference(struct drm_gem_object *obj) |
| 1449 | { |
| 1450 | kref_get(&obj->refcount); |
| 1451 | } |
| 1452 | |
| 1453 | static inline void |
| 1454 | drm_gem_object_unreference(struct drm_gem_object *obj) |
| 1455 | { |
| 1456 | if (obj != NULL) |
| 1457 | kref_put(&obj->refcount, drm_gem_object_free); |
| 1458 | } |
| 1459 | |
| 1460 | static inline void |
| 1461 | drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) |
| 1462 | { |
| 1463 | if (obj != NULL) { |
| 1464 | struct drm_device *dev = obj->dev; |
| 1465 | DRM_LOCK(dev); |
| 1466 | kref_put(&obj->refcount, drm_gem_object_free); |
| 1467 | DRM_UNLOCK(dev); |
| 1468 | } |
| 1469 | } |
| 1470 | |
| 1471 | int drm_gem_handle_create(struct drm_file *file_priv, |
| 1472 | struct drm_gem_object *obj, |
| 1473 | u32 *handlep); |
| 1474 | int drm_gem_handle_delete(struct drm_file *filp, u32 handle); |
| 1475 | |
| 1476 | static inline void |
| 1477 | drm_gem_object_handle_reference(struct drm_gem_object *obj) |
| 1478 | { |
| 1479 | drm_gem_object_reference(obj); |
| 1480 | atomic_inc(&obj->handle_count); |
| 1481 | } |
| 1482 | |
| 1483 | static inline void |
| 1484 | drm_gem_object_handle_unreference(struct drm_gem_object *obj) |
| 1485 | { |
| 1486 | if (obj == NULL) |
| 1487 | return; |
| 1488 | |
| 1489 | if (atomic_read(&obj->handle_count) == 0) |
| 1490 | return; |
| 1491 | /* |
| 1492 | * Must bump handle count first as this may be the last |
| 1493 | * ref, in which case the object would disappear before we |
| 1494 | * checked for a name |
| 1495 | */ |
| 1496 | if (atomic_dec_and_test(&obj->handle_count)) |
| 1497 | drm_gem_object_handle_free(obj); |
| 1498 | drm_gem_object_unreference(obj); |
| 1499 | } |
| 1500 | |
| 1501 | static inline void |
| 1502 | drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) |
| 1503 | { |
| 1504 | if (obj == NULL) |
| 1505 | return; |
| 1506 | |
| 1507 | if (atomic_read(&obj->handle_count) == 0) |
| 1508 | return; |
| 1509 | |
| 1510 | /* |
| 1511 | * Must bump handle count first as this may be the last |
| 1512 | * ref, in which case the object would disappear before we |
| 1513 | * checked for a name |
| 1514 | */ |
| 1515 | |
| 1516 | if (atomic_dec_and_test(&obj->handle_count)) |
| 1517 | drm_gem_object_handle_free(obj); |
| 1518 | drm_gem_object_unreference_unlocked(obj); |
| 1519 | } |
| 1520 | |
| 1521 | int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, |
| 1522 | size_t size); |
| 1523 | int drm_gem_private_object_init(struct drm_device *dev, |
| 1524 | struct drm_gem_object *obj, size_t size); |
| 1525 | struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, |
| 1526 | size_t size); |
| 1527 | struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, |
| 1528 | struct drm_file *file_priv, uint32_t handle); |
| 1529 | |
| 1530 | void drm_gem_open(struct drm_device *dev, struct drm_file *file_priv); |
| 1531 | void drm_gem_release(struct drm_device *dev, struct drm_file *file_priv); |
| 1532 | |
| 1533 | int drm_gem_create_mmap_offset(struct drm_gem_object *obj); |
| 1534 | void drm_gem_free_mmap_offset(struct drm_gem_object *obj); |
| 1535 | int drm_gem_mmap_single(struct drm_device *dev, vm_ooffset_t *offset, |
| 1536 | vm_size_t size, struct vm_object **obj_res, int nprot); |
| 1537 | void drm_gem_pager_dtr(void *obj); |
| 1538 | |
| 1539 | struct ttm_bo_device; |
| 1540 | int ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, |
| 1541 | vm_size_t size, struct vm_object **obj_res, int nprot); |
| 1542 | struct ttm_buffer_object; |
| 1543 | void ttm_bo_release_mmap(struct ttm_buffer_object *bo); |
| 1544 | |
| 1545 | void drm_device_lock_mtx(struct drm_device *dev); |
| 1546 | void drm_device_unlock_mtx(struct drm_device *dev); |
| 1547 | int drm_device_sleep_mtx(struct drm_device *dev, void *chan, int flags, |
| 1548 | const char *msg, int timeout); |
| 1549 | void drm_device_assert_mtx_locked(struct drm_device *dev); |
| 1550 | void drm_device_assert_mtx_unlocked(struct drm_device *dev); |
| 1551 | |
| 1552 | void drm_device_lock_struct(struct drm_device *dev); |
| 1553 | void drm_device_unlock_struct(struct drm_device *dev); |
| 1554 | int drm_device_sleep_struct(struct drm_device *dev, void *chan, int flags, |
| 1555 | const char *msg, int timeout); |
| 1556 | void drm_device_assert_struct_locked(struct drm_device *dev); |
| 1557 | void drm_device_assert_struct_unlocked(struct drm_device *dev); |
| 1558 | |
| 1559 | void drm_compat_locking_init(struct drm_device *dev); |
| 1560 | void drm_sleep_locking_init(struct drm_device *dev); |
| 1561 | |
| 1562 | /* drm_modes.c */ |
| 1563 | bool drm_mode_parse_command_line_for_connector(const char *mode_option, |
| 1564 | struct drm_connector *connector, struct drm_cmdline_mode *mode); |
| 1565 | struct drm_display_mode *drm_mode_create_from_cmdline_mode( |
| 1566 | struct drm_device *dev, struct drm_cmdline_mode *cmd); |
| 1567 | |
| 1568 | /* Inline replacements for drm_alloc and friends */ |
| 1569 | static __inline__ void * |
| 1570 | drm_alloc(size_t size, struct malloc_type *area) |
| 1571 | { |
| 1572 | return kmalloc(size, area, M_WAITOK | M_NULLOK); |
| 1573 | } |
| 1574 | |
| 1575 | static __inline__ void * |
| 1576 | drm_calloc(size_t nmemb, size_t size, struct malloc_type *area) |
| 1577 | { |
| 1578 | return kmalloc(size * nmemb, area, M_WAITOK | M_NULLOK | M_ZERO); |
| 1579 | } |
| 1580 | |
| 1581 | static __inline__ void |
| 1582 | drm_free(void *pt, struct malloc_type *area) |
| 1583 | { |
| 1584 | kfree(pt); |
| 1585 | } |
| 1586 | |
| 1587 | /* Inline replacements for DRM_IOREMAP macros */ |
| 1588 | static __inline__ void |
| 1589 | drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) |
| 1590 | { |
| 1591 | map->handle = drm_ioremap_wc(dev, map); |
| 1592 | } |
| 1593 | static __inline__ void |
| 1594 | drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) |
| 1595 | { |
| 1596 | map->handle = drm_ioremap(dev, map); |
| 1597 | } |
| 1598 | static __inline__ void |
| 1599 | drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) |
| 1600 | { |
| 1601 | if ( map->handle && map->size ) |
| 1602 | drm_ioremapfree(map); |
| 1603 | } |
| 1604 | |
| 1605 | static __inline__ struct drm_local_map * |
| 1606 | drm_core_findmap(struct drm_device *dev, unsigned long offset) |
| 1607 | { |
| 1608 | struct drm_map_list *_entry; |
| 1609 | |
| 1610 | list_for_each_entry(_entry, &dev->maplist, head) { |
| 1611 | if (offset == (unsigned long)_entry->map->handle) |
| 1612 | return _entry->map; |
| 1613 | } |
| 1614 | return NULL; |
| 1615 | } |
| 1616 | |
| 1617 | static __inline__ void drm_core_dropmap(struct drm_map *map) |
| 1618 | { |
| 1619 | } |
| 1620 | |
| 1621 | #include <drm/drm_mem_util.h> |
| 1622 | |
| 1623 | /* FreeBSD compatibility macros */ |
| 1624 | #define VM_OBJECT_WLOCK(object) VM_OBJECT_LOCK(object) |
| 1625 | #define VM_OBJECT_WUNLOCK(object) VM_OBJECT_UNLOCK(object) |
| 1626 | |
| 1627 | #define DRM_PCIE_SPEED_25 1 |
| 1628 | #define DRM_PCIE_SPEED_50 2 |
| 1629 | #define DRM_PCIE_SPEED_80 4 |
| 1630 | |
| 1631 | extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); |
| 1632 | |
| 1633 | #define drm_can_sleep() (DRM_HZ & 1) |
| 1634 | |
| 1635 | #endif /* __KERNEL__ */ |
| 1636 | #endif /* _DRM_P_H_ */ |