diff options
| author | drochner <drochner@NetBSD.org> | 2007-03-20 18:05:25 +0000 |
|---|---|---|
| committer | drochner <drochner@NetBSD.org> | 2007-03-20 18:05:25 +0000 |
| commit | 2d9e04fc35ca8ddfed6238ce480db06ec7d7d76e (patch) | |
| tree | eba0e8e954885cfb2067de846ecfd99f432a0b9c /sys/dev/drm/drm_memory.c | |
| parent | f8ef9d143184e5e22d51bde02aecb408dc9e3925 (diff) | |
Import DRM drivers, brought into shape by Yorick Hardy, posted to tech-x11.
Minor modifications by me:
-use an mi device major number
-(coarsly) divided into pci card specific and less specific parts, moved
the latter to dev/drm
-renamed autoconf attributes to reflect this
Todo:
-adapt all card frontends but i915 to drm include file location
-review the mtrr change
-make the change to agp_i810.c coexist with the fix for buggy VESA
BIOSes which is commented out temporarily
-RCS IDs etc style stuff
-LKM support (rescan support for vga)
-test
Diffstat (limited to 'sys/dev/drm/drm_memory.c')
| -rw-r--r-- | sys/dev/drm/drm_memory.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/sys/dev/drm/drm_memory.c b/sys/dev/drm/drm_memory.c new file mode 100644 index 00000000000..5d2d6ba7f89 --- /dev/null +++ b/sys/dev/drm/drm_memory.c @@ -0,0 +1,202 @@ +/* drm_memory.h -- Memory management wrappers for DRM -*- linux-c -*- + * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com + */ +/*- + *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> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_memory.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +MALLOC_DEFINE(M_DRM, "drm", "DRM Data Structures"); + +void drm_mem_init(void) +{ +#if defined(__NetBSD__) || defined(__OpenBSD__) +/* + 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) +{ + 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 i, reg, reason; + for(i = 0; i<DRM_MAX_PCI_RESOURCE; i++) { + reg = PCI_MAPREG_START + i*4; + if (dev->pci_map_data[i].maptype == PCI_MAPREG_TYPE_MEM && + dev->pci_map_data[i].base == map->offset && + dev->pci_map_data[i].size >= map->size) + { + map->bst = dev->pa.pa_memt; + map->cnt = &(dev->pci_map_data[i].mapped); + map->mapsize = dev->pci_map_data[i].size; + dev->pci_map_data[i].mapped++; + if (dev->pci_map_data[i].mapped > 1) + { + map->bsh = dev->pci_map_data[i].bsh; + return dev->pci_map_data[i].vaddr; + } + if ((reason = bus_space_map(map->bst, map->offset, + dev->pci_map_data[i].size, + dev->pci_map_data[i].flags, &map->bsh))) + { + dev->pci_map_data[i].mapped--; + DRM_DEBUG("ioremap: failed to map (%d)\n", + reason); + return NULL; + } + dev->pci_map_data[i].bsh = map->bsh; + dev->pci_map_data[i].vaddr = + bus_space_vaddr(map->bst, map->bsh); + DRM_DEBUG("ioremap mem found: %p\n", + dev->pci_map_data[i].vaddr); + return dev->pci_map_data[i].vaddr; + } + } + DRM_DEBUG("drm_ioremap failed: offset=%lx size=%lu\n", + map->offset, map->size); + return NULL; +#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__) + if (map->cnt == NULL) { + DRM_INFO("drm_ioremapfree called for unknown map\n"); + return; + } + if (*(map->cnt) > 0) { + (*(map->cnt))--; + if(*(map->cnt) == 0) + bus_space_unmap(map->bst, map->bsh, map->mapsize); + } +#endif +} + +#ifdef __FreeBSD__ +int +drm_mtrr_add(unsigned long offset, size_t size, int flags) +{ + 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); +} + +int +drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags) +{ + 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); +} +#elif defined(__NetBSD__) || defined(__OpenBSD__) +int +drm_mtrr_add(unsigned long offset, size_t size, int flags) +{ + 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); +} + +int +drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags) +{ + 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); +} +#endif |
