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