FreeBSD/Linux Kernel Cross Reference
sys/dev/drm/drm_memory.c

     /*-
      *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("$FreeBSD$");
    
    /** @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 "dev/drm/drmP.h"
    
    MALLOC_DEFINE(DRM_MEM_DMA, "drm_dma", "DRM DMA Data Structures");
    MALLOC_DEFINE(DRM_MEM_SAREA, "drm_sarea", "DRM SAREA Data Structures");
    MALLOC_DEFINE(DRM_MEM_DRIVER, "drm_driver", "DRM DRIVER Data Structures");
    MALLOC_DEFINE(DRM_MEM_MAGIC, "drm_magic", "DRM MAGIC Data Structures");
    MALLOC_DEFINE(DRM_MEM_IOCTLS, "drm_ioctls", "DRM IOCTL Data Structures");
    MALLOC_DEFINE(DRM_MEM_MAPS, "drm_maps", "DRM MAP Data Structures");
    MALLOC_DEFINE(DRM_MEM_BUFS, "drm_bufs", "DRM BUFFER Data Structures");
    MALLOC_DEFINE(DRM_MEM_SEGS, "drm_segs", "DRM SEGMENTS Data Structures");
    MALLOC_DEFINE(DRM_MEM_PAGES, "drm_pages", "DRM PAGES Data Structures");
    MALLOC_DEFINE(DRM_MEM_FILES, "drm_files", "DRM FILE Data Structures");
    MALLOC_DEFINE(DRM_MEM_QUEUES, "drm_queues", "DRM QUEUE Data Structures");
    MALLOC_DEFINE(DRM_MEM_CMDS, "drm_cmds", "DRM COMMAND Data Structures");
    MALLOC_DEFINE(DRM_MEM_MAPPINGS, "drm_mapping", "DRM MAPPING Data Structures");
    MALLOC_DEFINE(DRM_MEM_BUFLISTS, "drm_buflists", "DRM BUFLISTS Data Structures");
    MALLOC_DEFINE(DRM_MEM_AGPLISTS, "drm_agplists", "DRM AGPLISTS Data Structures");
    MALLOC_DEFINE(DRM_MEM_CTXBITMAP, "drm_ctxbitmap",
        "DRM CTXBITMAP Data Structures");
    MALLOC_DEFINE(DRM_MEM_SGLISTS, "drm_sglists", "DRM SGLISTS Data Structures");
    MALLOC_DEFINE(DRM_MEM_DRAWABLE, "drm_drawable", "DRM DRAWABLE Data Structures");
    MALLOC_DEFINE(DRM_MEM_MM, "drm_sman", "DRM MEMORY MANAGER Data Structures");
    MALLOC_DEFINE(DRM_MEM_HASHTAB, "drm_hashtab", "DRM HASHTABLE Data Structures");
    
    void drm_mem_init(void)
    {
    }
    
    void drm_mem_uninit(void)
    {
    }
    
    void *drm_ioremap_wc(struct drm_device *dev, drm_local_map_t *map)
    {
            return pmap_mapdev_attr(map->offset, map->size, VM_MEMATTR_WRITE_COMBINING);
    }
    
    void *drm_ioremap(struct drm_device *dev, drm_local_map_t *map)
    {
            return pmap_mapdev(map->offset, map->size);
    }
    
    void drm_ioremapfree(drm_local_map_t *map)
    {
            pmap_unmapdev((vm_offset_t) map->virtual, map->size);
    }
    
    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);
   }

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