diff options
Diffstat (limited to 'sys/dev/pci/drm/drm_memory.c')
| -rw-r--r-- | sys/dev/pci/drm/drm_memory.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/sys/dev/pci/drm/drm_memory.c b/sys/dev/pci/drm/drm_memory.c new file mode 100644 index 00000000000..f018402f189 --- /dev/null +++ b/sys/dev/pci/drm/drm_memory.c @@ -0,0 +1,193 @@ +/*- + *Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +/** @file drm_memory.c + * Wrappers for kernel memory allocation routines, and MTRR management support. + * + * This file previously implemented a memory consumption tracking system using + * the "area" argument for various different types of allocations, but that + * has been stripped out for now. + */ + +#include "drmP.h" + +#ifndef __OpenBSD__ +MALLOC_DEFINE(M_DRM, "drm", "DRM Data Structures"); +#endif + +void drm_mem_init(void) +{ +#if defined(__NetBSD__) +/* + malloc_type_attach(M_DRM); +*/ +#endif +} + +void drm_mem_uninit(void) +{ +} + +void *drm_alloc(size_t size, int area) +{ + return malloc(size, M_DRM, M_NOWAIT); +} + +void *drm_calloc(size_t nmemb, size_t size, int area) +{ + /* XXX overflow checking */ + return malloc(size * nmemb, M_DRM, M_NOWAIT | M_ZERO); +} + +void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area) +{ + void *pt; + + pt = malloc(size, M_DRM, M_NOWAIT); + if (pt == NULL) + return NULL; + if (oldpt && oldsize) { + memcpy(pt, oldpt, oldsize); + free(oldpt, M_DRM); + } + return pt; +} + +void drm_free(void *pt, size_t size, int area) +{ + free(pt, M_DRM); +} + +void *drm_ioremap(drm_device_t *dev, drm_local_map_t *map) +{ +#ifdef __FreeBSD__ + return pmap_mapdev(map->offset, map->size); +#elif defined(__NetBSD__) || defined(__OpenBSD__) + int ret; + if (!map->bst) + map->bst = dev->pa.pa_memt; + if ((ret = bus_space_map(map->bst, map->offset, map->size, + BUS_SPACE_MAP_LINEAR, &map->bsh))) { + DRM_ERROR("Failed to map offset = 0x%08lx, size = 0x%08lx, type = %d, ret = %d\n", map->offset, + map->size, map->type, ret); + return NULL; + } + DRM_INFO("mapped offset = 0x%08lx, size = 0x%08lx, type = %d\n", map->offset, + map->offset, map->size); + return bus_space_vaddr(map->bst, map->bsh); +#endif +} + +void drm_ioremapfree(drm_local_map_t *map) +{ +#ifdef __FreeBSD__ + pmap_unmapdev((vm_offset_t) map->handle, map->size); +#elif defined(__NetBSD__) || defined(__OpenBSD__) + bus_space_unmap(map->bst, map->bsh, map->size); +#endif +} + +#if defined(__FreeBSD__) || defined(__OpenBSD__) +int +drm_mtrr_add(unsigned long offset, size_t size, int flags) +{ +#ifndef DRM_NO_MTRR + int act; + struct mem_range_desc mrdesc; + + mrdesc.mr_base = offset; + mrdesc.mr_len = size; + mrdesc.mr_flags = flags; + act = MEMRANGE_SET_UPDATE; + strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner)); + return mem_range_attr_set(&mrdesc, &act); +#else + return 0; +#endif +} + +int +#if defined(__OpenBSD__) +drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags) +#else +drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags) +#endif +{ +#ifndef DRM_NO_MTRR + int act; + struct mem_range_desc mrdesc; + + mrdesc.mr_base = offset; + mrdesc.mr_len = size; + mrdesc.mr_flags = flags; + act = MEMRANGE_SET_REMOVE; + strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner)); + return mem_range_attr_set(&mrdesc, &act); +#else + return 0; +#endif +} +#elif defined(__NetBSD__) +int +drm_mtrr_add(unsigned long offset, size_t size, int flags) +{ +#ifndef DRM_NO_MTRR + struct mtrr mtrrmap; + int one = 1; + + DRM_DEBUG("offset=%lx size=%ld\n", (long)offset, (long)size); + mtrrmap.base = offset; + mtrrmap.len = size; + mtrrmap.type = flags; + mtrrmap.flags = MTRR_VALID; + return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL); +#else + return 0; +#endif +} + +int +drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags) +{ +#ifndef DRM_NO_MTRR + struct mtrr mtrrmap; + int one = 1; + + DRM_DEBUG("offset=%lx size=%ld\n", (long)offset, (long)size); + mtrrmap.base = offset; + mtrrmap.len = size; + mtrrmap.type = flags; + mtrrmap.flags = 0; + return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL); +#else + return 0; +#endif +} +#endif |