blob: 2b6453a9ffce6e20c5a932f7ed00895acd8375d1 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/**
Dave Airlieb5e89ed2005-09-25 14:28:13 +10002 * \file drm_agpsupport.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * DRM support for AGP/GART backend
Dave Airlieb5e89ed2005-09-25 14:28:13 +10004 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 * \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 * All Rights Reserved.
13 *
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
20 *
21 * The above copyright notice and this permission notice (including the next
22 * paragraph) shall be included in all copies or substantial portions of the
23 * Software.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
29 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
30 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
31 * OTHER DEALINGS IN THE SOFTWARE.
32 */
33
34#include "drmP.h"
35#include <linux/module.h>
36
37#if __OS_HAS_AGP
38
39/**
Dave Airlie7ab98402005-07-10 16:56:52 +100040 * Get AGP information.
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 *
42 * \param inode device inode.
43 * \param filp file pointer.
44 * \param cmd command.
45 * \param arg pointer to a (output) drm_agp_info structure.
46 * \return zero on success or a negative number on failure.
47 *
48 * Verifies the AGP device has been initialized and acquired and fills in the
49 * drm_agp_info structure with the information in drm_agp_head::agp_info.
50 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +100051int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info)
Linus Torvalds1da177e2005-04-16 15:20:36 -070052{
Dave Airlieb5e89ed2005-09-25 14:28:13 +100053 DRM_AGP_KERN *kern;
Linus Torvalds1da177e2005-04-16 15:20:36 -070054
55 if (!dev->agp || !dev->agp->acquired)
56 return -EINVAL;
57
Dave Airlieb5e89ed2005-09-25 14:28:13 +100058 kern = &dev->agp->agp_info;
Dave Airlie7ab98402005-07-10 16:56:52 +100059 info->agp_version_major = kern->version.major;
60 info->agp_version_minor = kern->version.minor;
Dave Airlieb5e89ed2005-09-25 14:28:13 +100061 info->mode = kern->mode;
62 info->aperture_base = kern->aper_base;
63 info->aperture_size = kern->aper_size * 1024 * 1024;
64 info->memory_allowed = kern->max_memory << PAGE_SHIFT;
65 info->memory_used = kern->current_memory << PAGE_SHIFT;
66 info->id_vendor = kern->device->vendor;
67 info->id_device = kern->device->device;
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
Dave Airlie7ab98402005-07-10 16:56:52 +100069 return 0;
70}
Dave Airlieb5e89ed2005-09-25 14:28:13 +100071
Dave Airlie7ab98402005-07-10 16:56:52 +100072EXPORT_SYMBOL(drm_agp_info);
73
74int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +100075 unsigned int cmd, unsigned long arg)
Dave Airlie7ab98402005-07-10 16:56:52 +100076{
77 drm_file_t *priv = filp->private_data;
78 drm_device_t *dev = priv->head->dev;
79 drm_agp_info_t info;
80 int err;
81
82 err = drm_agp_info(dev, &info);
83 if (err)
84 return err;
Dave Airlieb5e89ed2005-09-25 14:28:13 +100085
Dave Airlie7ab98402005-07-10 16:56:52 +100086 if (copy_to_user((drm_agp_info_t __user *) arg, &info, sizeof(info)))
Linus Torvalds1da177e2005-04-16 15:20:36 -070087 return -EFAULT;
88 return 0;
89}
90
91/**
Dave Airlie7ab98402005-07-10 16:56:52 +100092 * Acquire the AGP device.
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 *
Dave Airlie7ab98402005-07-10 16:56:52 +100094 * \param dev DRM device that is to acquire AGP
Dave Airlieb5e89ed2005-09-25 14:28:13 +100095 * \return zero on success or a negative number on failure.
Linus Torvalds1da177e2005-04-16 15:20:36 -070096 *
97 * Verifies the AGP device hasn't been acquired before and calls
Dave Airlie7ab98402005-07-10 16:56:52 +100098 * \c agp_backend_acquire.
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000100int drm_agp_acquire(drm_device_t * dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 if (!dev->agp)
103 return -ENODEV;
104 if (dev->agp->acquired)
105 return -EBUSY;
106 if (!(dev->agp->bridge = agp_backend_acquire(dev->pdev)))
107 return -ENODEV;
108 dev->agp->acquired = 1;
109 return 0;
110}
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000111
Dave Airlie7ab98402005-07-10 16:56:52 +1000112EXPORT_SYMBOL(drm_agp_acquire);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
114/**
Dave Airlie7ab98402005-07-10 16:56:52 +1000115 * Acquire the AGP device (ioctl).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 *
117 * \param inode device inode.
118 * \param filp file pointer.
119 * \param cmd command.
120 * \param arg user argument.
121 * \return zero on success or a negative number on failure.
122 *
Dave Airlie7ab98402005-07-10 16:56:52 +1000123 * Verifies the AGP device hasn't been acquired before and calls
124 * \c agp_backend_acquire.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 */
Dave Airlie7ab98402005-07-10 16:56:52 +1000126int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
127 unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128{
Dave Airlie7ab98402005-07-10 16:56:52 +1000129 drm_file_t *priv = filp->private_data;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000130
131 return drm_agp_acquire((drm_device_t *) priv->head->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132}
133
134/**
135 * Release the AGP device.
136 *
Dave Airlie7ab98402005-07-10 16:56:52 +1000137 * \param dev DRM device that is to release AGP
138 * \return zero on success or a negative number on failure.
139 *
140 * Verifies the AGP device has been acquired and calls \c agp_backend_release.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000142int drm_agp_release(drm_device_t * dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143{
Dave Airlie7ab98402005-07-10 16:56:52 +1000144 if (!dev->agp || !dev->agp->acquired)
145 return -EINVAL;
146 agp_backend_release(dev->agp->bridge);
147 dev->agp->acquired = 0;
148 return 0;
149}
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000150
Dave Airlie7ab98402005-07-10 16:56:52 +1000151EXPORT_SYMBOL(drm_agp_release);
152
153int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
154 unsigned int cmd, unsigned long arg)
155{
156 drm_file_t *priv = filp->private_data;
157 drm_device_t *dev = priv->head->dev;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000158
Dave Airlie7ab98402005-07-10 16:56:52 +1000159 return drm_agp_release(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160}
161
162/**
163 * Enable the AGP bus.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000164 *
Dave Airlie7ab98402005-07-10 16:56:52 +1000165 * \param dev DRM device that has previously acquired AGP.
166 * \param mode Requested AGP mode.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 * \return zero on success or a negative number on failure.
168 *
169 * Verifies the AGP device has been acquired but not enabled, and calls
Dave Airlie7ab98402005-07-10 16:56:52 +1000170 * \c agp_enable.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000172int drm_agp_enable(drm_device_t * dev, drm_agp_mode_t mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 if (!dev->agp || !dev->agp->acquired)
175 return -EINVAL;
176
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000177 dev->agp->mode = mode.mode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178 agp_enable(dev->agp->bridge, mode.mode);
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000179 dev->agp->base = dev->agp->agp_info.aper_base;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180 dev->agp->enabled = 1;
181 return 0;
182}
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000183
Dave Airlie7ab98402005-07-10 16:56:52 +1000184EXPORT_SYMBOL(drm_agp_enable);
185
186int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000187 unsigned int cmd, unsigned long arg)
Dave Airlie7ab98402005-07-10 16:56:52 +1000188{
189 drm_file_t *priv = filp->private_data;
190 drm_device_t *dev = priv->head->dev;
191 drm_agp_mode_t mode;
192
Dave Airlie7ab98402005-07-10 16:56:52 +1000193 if (copy_from_user(&mode, (drm_agp_mode_t __user *) arg, sizeof(mode)))
194 return -EFAULT;
195
196 return drm_agp_enable(dev, mode);
197}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198
199/**
200 * Allocate AGP memory.
201 *
202 * \param inode device inode.
203 * \param filp file pointer.
204 * \param cmd command.
205 * \param arg pointer to a drm_agp_buffer structure.
206 * \return zero on success or a negative number on failure.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000207 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 * Verifies the AGP device is present and has been acquired, allocates the
209 * memory via alloc_agp() and creates a drm_agp_mem entry for it.
210 */
211int drm_agp_alloc(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000212 unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000214 drm_file_t *priv = filp->private_data;
215 drm_device_t *dev = priv->head->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216 drm_agp_buffer_t request;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000217 drm_agp_mem_t *entry;
218 DRM_AGP_MEM *memory;
219 unsigned long pages;
220 u32 type;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221 drm_agp_buffer_t __user *argp = (void __user *)arg;
222
223 if (!dev->agp || !dev->agp->acquired)
224 return -EINVAL;
225 if (copy_from_user(&request, argp, sizeof(request)))
226 return -EFAULT;
227 if (!(entry = drm_alloc(sizeof(*entry), DRM_MEM_AGPLISTS)))
228 return -ENOMEM;
229
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000230 memset(entry, 0, sizeof(*entry));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231
232 pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE;
233 type = (u32) request.type;
234
Dave Airlieb5d499c2005-07-10 18:17:42 +1000235 if (!(memory = drm_alloc_agp(dev, pages, type))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
237 return -ENOMEM;
238 }
239
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000240 entry->handle = (unsigned long)memory->key + 1;
241 entry->memory = memory;
242 entry->bound = 0;
243 entry->pages = pages;
244 entry->prev = NULL;
245 entry->next = dev->agp->memory;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 if (dev->agp->memory)
247 dev->agp->memory->prev = entry;
248 dev->agp->memory = entry;
249
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000250 request.handle = entry->handle;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 request.physical = memory->physical;
252
253 if (copy_to_user(argp, &request, sizeof(request))) {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000254 dev->agp->memory = entry->next;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 dev->agp->memory->prev = NULL;
256 drm_free_agp(memory, pages);
257 drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
258 return -EFAULT;
259 }
260 return 0;
261}
262
263/**
264 * Search for the AGP memory entry associated with a handle.
265 *
266 * \param dev DRM device structure.
267 * \param handle AGP memory handle.
268 * \return pointer to the drm_agp_mem structure associated with \p handle.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000269 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 * Walks through drm_agp_head::memory until finding a matching handle.
271 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000272static drm_agp_mem_t *drm_agp_lookup_entry(drm_device_t * dev,
273 unsigned long handle)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274{
275 drm_agp_mem_t *entry;
276
277 for (entry = dev->agp->memory; entry; entry = entry->next) {
278 if (entry->handle == handle)
279 return entry;
280 }
281 return NULL;
282}
283
284/**
285 * Unbind AGP memory from the GATT (ioctl).
286 *
287 * \param inode device inode.
288 * \param filp file pointer.
289 * \param cmd command.
290 * \param arg pointer to a drm_agp_binding structure.
291 * \return zero on success or a negative number on failure.
292 *
293 * Verifies the AGP device is present and acquired, looks-up the AGP memory
294 * entry and passes it to the unbind_agp() function.
295 */
296int drm_agp_unbind(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000297 unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000299 drm_file_t *priv = filp->private_data;
300 drm_device_t *dev = priv->head->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301 drm_agp_binding_t request;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000302 drm_agp_mem_t *entry;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 int ret;
304
305 if (!dev->agp || !dev->agp->acquired)
306 return -EINVAL;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000307 if (copy_from_user
308 (&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 return -EFAULT;
310 if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
311 return -EINVAL;
312 if (!entry->bound)
313 return -EINVAL;
314 ret = drm_unbind_agp(entry->memory);
315 if (ret == 0)
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000316 entry->bound = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 return ret;
318}
319
320/**
321 * Bind AGP memory into the GATT (ioctl)
322 *
323 * \param inode device inode.
324 * \param filp file pointer.
325 * \param cmd command.
326 * \param arg pointer to a drm_agp_binding structure.
327 * \return zero on success or a negative number on failure.
328 *
329 * Verifies the AGP device is present and has been acquired and that no memory
330 * is currently bound into the GATT. Looks-up the AGP memory entry and passes
331 * it to bind_agp() function.
332 */
333int drm_agp_bind(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000334 unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000336 drm_file_t *priv = filp->private_data;
337 drm_device_t *dev = priv->head->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 drm_agp_binding_t request;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000339 drm_agp_mem_t *entry;
340 int retcode;
341 int page;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
343 if (!dev->agp || !dev->agp->acquired)
344 return -EINVAL;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000345 if (copy_from_user
346 (&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 return -EFAULT;
348 if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
349 return -EINVAL;
350 if (entry->bound)
351 return -EINVAL;
352 page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE;
353 if ((retcode = drm_bind_agp(entry->memory, page)))
354 return retcode;
355 entry->bound = dev->agp->base + (page << PAGE_SHIFT);
356 DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n",
357 dev->agp->base, entry->bound);
358 return 0;
359}
360
361/**
362 * Free AGP memory (ioctl).
363 *
364 * \param inode device inode.
365 * \param filp file pointer.
366 * \param cmd command.
367 * \param arg pointer to a drm_agp_buffer structure.
368 * \return zero on success or a negative number on failure.
369 *
370 * Verifies the AGP device is present and has been acquired and looks up the
371 * AGP memory entry. If the memory it's currently bound, unbind it via
372 * unbind_agp(). Frees it via free_agp() as well as the entry itself
373 * and unlinks from the doubly linked list it's inserted in.
374 */
375int drm_agp_free(struct inode *inode, struct file *filp,
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000376 unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000378 drm_file_t *priv = filp->private_data;
379 drm_device_t *dev = priv->head->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 drm_agp_buffer_t request;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000381 drm_agp_mem_t *entry;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382
383 if (!dev->agp || !dev->agp->acquired)
384 return -EINVAL;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000385 if (copy_from_user
386 (&request, (drm_agp_buffer_t __user *) arg, sizeof(request)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 return -EFAULT;
388 if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
389 return -EINVAL;
390 if (entry->bound)
391 drm_unbind_agp(entry->memory);
392
393 if (entry->prev)
394 entry->prev->next = entry->next;
395 else
396 dev->agp->memory = entry->next;
397
398 if (entry->next)
399 entry->next->prev = entry->prev;
400
401 drm_free_agp(entry->memory, entry->pages);
402 drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
403 return 0;
404}
405
406/**
407 * Initialize the AGP resources.
408 *
409 * \return pointer to a drm_agp_head structure.
410 *
411 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000412drm_agp_head_t *drm_agp_init(drm_device_t * dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413{
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000414 drm_agp_head_t *head = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415
416 if (!(head = drm_alloc(sizeof(*head), DRM_MEM_AGPLISTS)))
417 return NULL;
418 memset((void *)head, 0, sizeof(*head));
419 head->bridge = agp_find_bridge(dev->pdev);
420 if (!head->bridge) {
421 if (!(head->bridge = agp_backend_acquire(dev->pdev))) {
422 drm_free(head, sizeof(*head), DRM_MEM_AGPLISTS);
423 return NULL;
424 }
425 agp_copy_info(head->bridge, &head->agp_info);
426 agp_backend_release(head->bridge);
427 } else {
428 agp_copy_info(head->bridge, &head->agp_info);
429 }
430 if (head->agp_info.chipset == NOT_SUPPORTED) {
431 drm_free(head, sizeof(*head), DRM_MEM_AGPLISTS);
432 return NULL;
433 }
434 head->memory = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 head->cant_use_aperture = head->agp_info.cant_use_aperture;
436 head->page_mask = head->agp_info.page_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437
438 return head;
439}
440
441/** Calls agp_allocate_memory() */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000442DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data * bridge,
443 size_t pages, u32 type)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444{
445 return agp_allocate_memory(bridge, pages, type);
446}
447
448/** Calls agp_free_memory() */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000449int drm_agp_free_memory(DRM_AGP_MEM * handle)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450{
451 if (!handle)
452 return 0;
453 agp_free_memory(handle);
454 return 1;
455}
456
457/** Calls agp_bind_memory() */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000458int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459{
460 if (!handle)
461 return -EINVAL;
462 return agp_bind_memory(handle, start);
463}
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000464
Dave Airlied84f76d2005-07-10 17:04:22 +1000465EXPORT_SYMBOL(drm_agp_bind_memory);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466
467/** Calls agp_unbind_memory() */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000468int drm_agp_unbind_memory(DRM_AGP_MEM * handle)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469{
470 if (!handle)
471 return -EINVAL;
472 return agp_unbind_memory(handle);
473}
474
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000475#endif /* __OS_HAS_AGP */