2 *Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
3 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
26 * Rickard E. (Rik) Faith <faith@valinux.com>
27 * Gareth Hughes <gareth@valinux.com>
31 /** @file drm_memory.c
32 * Wrappers for kernel memory allocation routines, and MTRR management support.
34 * This file previously implemented a memory consumption tracking system using
35 * the "area" argument for various different types of allocations, but that
36 * has been stripped out for now.
41 MALLOC_DEFINE(M_DRM, "drm", "DRM Data Structures");
43 void drm_mem_init(void)
45 #if defined(__NetBSD__) || defined(__OpenBSD__)
46 malloc_type_attach(M_DRM);
50 void drm_mem_uninit(void)
54 void *drm_alloc(size_t size, int area)
56 return malloc(size, M_DRM, M_NOWAIT);
59 void *drm_calloc(size_t nmemb, size_t size, int area)
61 return malloc(size * nmemb, M_DRM, M_NOWAIT | M_ZERO);
64 void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area)
68 pt = malloc(size, M_DRM, M_NOWAIT);
71 if (oldpt && oldsize) {
72 memcpy(pt, oldpt, oldsize);
78 void drm_free(void *pt, size_t size, int area)
83 void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map)
86 return pmap_mapdev(map->offset, map->size);
87 #elif defined(__NetBSD__) || defined(__OpenBSD__)
88 map->bst = dev->pa.pa_memt;
89 if (bus_space_map(map->bst, map->offset, map->size,
90 BUS_SPACE_MAP_LINEAR, &map->bsh))
92 return bus_space_vaddr(map->bst, map->bsh);
96 void drm_ioremapfree(drm_local_map_t *map)
99 pmap_unmapdev((vm_offset_t) map->handle, map->size);
100 #elif defined(__NetBSD__) || defined(__OpenBSD__)
101 bus_space_unmap(map->bst, map->bsh, map->size);
107 drm_mtrr_add(unsigned long offset, size_t size, int flags)
110 struct mem_range_desc mrdesc;
112 mrdesc.mr_base = offset;
113 mrdesc.mr_len = size;
114 mrdesc.mr_flags = flags;
115 act = MEMRANGE_SET_UPDATE;
116 strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
117 return mem_range_attr_set(&mrdesc, &act);
121 drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags)
124 struct mem_range_desc mrdesc;
126 mrdesc.mr_base = offset;
127 mrdesc.mr_len = size;
128 mrdesc.mr_flags = flags;
129 act = MEMRANGE_SET_REMOVE;
130 strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
131 return mem_range_attr_set(&mrdesc, &act);
133 #elif defined(__NetBSD__) || defined(__OpenBSD__)
135 drm_mtrr_add(unsigned long offset, size_t size, int flags)
140 mtrrmap.base = offset;
142 mtrrmap.type = flags;
143 mtrrmap.flags = MTRR_VALID;
144 return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL);
148 drm_mtrr_del(unsigned long offset, size_t size, int flags)
153 mtrrmap.base = offset;
155 mtrrmap.type = flags;
157 return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL);