1 /* drm_memory.h -- Memory management wrappers for DRM -*- linux-c -*-
2 * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
5 *Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
6 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
29 * Rickard E. (Rik) Faith <faith@valinux.com>
30 * Gareth Hughes <gareth@valinux.com>
36 MALLOC_DEFINE(M_DRM, "drm", "DRM Data Structures");
38 void drm_mem_init(void)
40 #if defined(__NetBSD__) || defined(__OpenBSD__)
41 malloc_type_attach(M_DRM);
45 void drm_mem_uninit(void)
49 void *drm_alloc(size_t size, int area)
51 return malloc(size, M_DRM, M_NOWAIT);
54 void *drm_calloc(size_t nmemb, size_t size, int area)
56 return malloc(size * nmemb, M_DRM, M_NOWAIT | M_ZERO);
59 void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area)
63 pt = malloc(size, M_DRM, M_NOWAIT);
66 if (oldpt && oldsize) {
67 memcpy(pt, oldpt, oldsize);
73 void drm_free(void *pt, size_t size, int area)
78 void *drm_ioremap(drm_device_t *dev, drm_local_map_t *map)
81 return pmap_mapdev(map->offset, map->size);
82 #elif defined(__NetBSD__) || defined(__OpenBSD__)
83 map->bst = dev->pa.pa_memt;
84 if (bus_space_map(map->bst, map->offset, map->size,
85 BUS_SPACE_MAP_LINEAR, &map->bsh))
87 return bus_space_vaddr(map->bst, map->bsh);
91 void drm_ioremapfree(drm_local_map_t *map)
94 pmap_unmapdev((vm_offset_t) map->handle, map->size);
95 #elif defined(__NetBSD__) || defined(__OpenBSD__)
96 bus_space_unmap(map->bst, map->bsh, map->size);
102 drm_mtrr_add(unsigned long offset, size_t size, int flags)
105 struct mem_range_desc mrdesc;
107 mrdesc.mr_base = offset;
108 mrdesc.mr_len = size;
109 mrdesc.mr_flags = flags;
110 act = MEMRANGE_SET_UPDATE;
111 strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
112 return mem_range_attr_set(&mrdesc, &act);
116 drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags)
119 struct mem_range_desc mrdesc;
121 mrdesc.mr_base = offset;
122 mrdesc.mr_len = size;
123 mrdesc.mr_flags = flags;
124 act = MEMRANGE_SET_REMOVE;
125 strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
126 return mem_range_attr_set(&mrdesc, &act);
128 #elif defined(__NetBSD__) || defined(__OpenBSD__)
130 drm_mtrr_add(unsigned long offset, size_t size, int flags)
135 mtrrmap.base = offset;
137 mtrrmap.type = flags;
138 mtrrmap.flags = MTRR_VALID;
139 return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL);
143 drm_mtrr_del(unsigned long offset, size_t size, int flags)
148 mtrrmap.base = offset;
150 mtrrmap.type = flags;
152 return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL);