3 * Memory management wrappers for DRM
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
10 * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
12 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
13 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
14 * All Rights Reserved.
16 * Permission is hereby granted, free of charge, to any person obtaining a
17 * copy of this software and associated documentation files (the "Software"),
18 * to deal in the Software without restriction, including without limitation
19 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
20 * and/or sell copies of the Software, and to permit persons to whom the
21 * Software is furnished to do so, subject to the following conditions:
23 * The above copyright notice and this permission notice (including the next
24 * paragraph) shall be included in all copies or substantial portions of the
27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
28 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
29 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
30 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
31 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
32 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
33 * OTHER DEALINGS IN THE SOFTWARE.
36 #include <linux/highmem.h>
37 #include <linux/export.h>
39 #include "drm_legacy.h"
45 # define PAGE_AGP __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
47 # define PAGE_AGP PAGE_KERNEL
51 MALLOC_DEFINE(M_DRM, "m_drm", "DRM memory allocations");
53 void drm_legacy_ioremap(struct drm_local_map *map, struct drm_device *dev)
55 map->handle = ioremap(map->offset, map->size);
57 EXPORT_SYMBOL(drm_legacy_ioremap);
59 void drm_legacy_ioremap_wc(struct drm_local_map *map, struct drm_device *dev)
61 map->handle = ioremap_wc(map->offset, map->size);
63 EXPORT_SYMBOL(drm_legacy_ioremap_wc);
65 void drm_legacy_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
67 if (!map->handle || !map->size)
70 pmap_unmapdev((vm_offset_t) map->handle, map->size);
72 EXPORT_SYMBOL(drm_legacy_ioremapfree);
75 drm_mtrr_add(unsigned long offset, size_t size, int flags)
78 struct mem_range_desc mrdesc;
80 mrdesc.mr_base = offset;
82 mrdesc.mr_flags = flags;
83 act = MEMRANGE_SET_UPDATE;
84 strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
85 return mem_range_attr_set(&mrdesc, &act);
89 drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags)
92 struct mem_range_desc mrdesc;
94 mrdesc.mr_base = offset;
96 mrdesc.mr_flags = flags;
97 act = MEMRANGE_SET_REMOVE;
98 strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
99 return mem_range_attr_set(&mrdesc, &act);