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>
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
37 #include "dev/drm/drmP.h"
39 MALLOC_DEFINE(M_DRM, "drm", "DRM Data Structures");
41 void drm_mem_init(void)
43 #if defined(__NetBSD__) || defined(__OpenBSD__)
44 malloc_type_attach(M_DRM);
48 void drm_mem_uninit(void)
52 void *drm_alloc(size_t size, int area)
54 return malloc(size, M_DRM, M_NOWAIT);
57 void *drm_calloc(size_t nmemb, size_t size, int area)
59 return malloc(size * nmemb, M_DRM, M_NOWAIT | M_ZERO);
62 void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area)
66 pt = malloc(size, M_DRM, M_NOWAIT);
69 if (oldpt && oldsize) {
70 memcpy(pt, oldpt, oldsize);
76 void drm_free(void *pt, size_t size, int area)
81 void *drm_ioremap(drm_device_t *dev, drm_local_map_t *map)
84 return pmap_mapdev(map->offset, map->size);
85 #elif defined(__NetBSD__) || defined(__OpenBSD__)
86 map->bst = dev->pa.pa_memt;
87 if (bus_space_map(map->bst, map->offset, map->size,
88 BUS_SPACE_MAP_LINEAR, &map->bsh))
90 return bus_space_vaddr(map->bst, map->bsh);
94 void drm_ioremapfree(drm_local_map_t *map)
97 pmap_unmapdev((vm_offset_t) map->handle, map->size);
98 #elif defined(__NetBSD__) || defined(__OpenBSD__)
99 bus_space_unmap(map->bst, map->bsh, map->size);
105 drm_mtrr_add(unsigned long offset, size_t size, int flags)
108 struct mem_range_desc mrdesc;
110 mrdesc.mr_base = offset;
111 mrdesc.mr_len = size;
112 mrdesc.mr_flags = flags;
113 act = MEMRANGE_SET_UPDATE;
114 strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
115 return mem_range_attr_set(&mrdesc, &act);
119 drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags)
122 struct mem_range_desc mrdesc;
124 mrdesc.mr_base = offset;
125 mrdesc.mr_len = size;
126 mrdesc.mr_flags = flags;
127 act = MEMRANGE_SET_REMOVE;
128 strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
129 return mem_range_attr_set(&mrdesc, &act);
131 #elif defined(__NetBSD__) || defined(__OpenBSD__)
133 drm_mtrr_add(unsigned long offset, size_t size, int flags)
138 mtrrmap.base = offset;
140 mtrrmap.type = flags;
141 mtrrmap.flags = MTRR_VALID;
142 return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL);
146 drm_mtrr_del(unsigned long offset, size_t size, int flags)
151 mtrrmap.base = offset;
153 mtrrmap.type = flags;
155 return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL);