From 44aa4d6297874022a4f5a49ea24f2d052584d3dc Mon Sep 17 00:00:00 2001 From: David Dawes Date: Sun, 27 Jan 2002 20:05:42 +0000 Subject: First pass merge of XFree86 4.2.0 import. --- bsd/drm/vm.c | 104 ----------------------------------------------------------- 1 file changed, 104 deletions(-) delete mode 100644 bsd/drm/vm.c (limited to 'bsd/drm/vm.c') diff --git a/bsd/drm/vm.c b/bsd/drm/vm.c deleted file mode 100644 index 00e66f3e..00000000 --- a/bsd/drm/vm.c +++ /dev/null @@ -1,104 +0,0 @@ -/* vm.c -- Memory mapping for DRM -*- c -*- - * Created: Mon Jan 4 08:58:31 1999 by faith@precisioninsight.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 - * PRECISION INSIGHT 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 - * - */ - -#define __NO_VERSION__ -#include "drmP.h" - -#include -#include - -static int drm_dma_mmap(dev_t kdev, vm_offset_t offset, int prot) -{ - drm_device_t *dev = kdev->si_drv1; - drm_device_dma_t *dma = dev->dma; - unsigned long physical; - unsigned long page; - - if (!dma) return -1; /* Error */ - if (!dma->pagelist) return -1; /* Nothing allocated */ - - page = offset >> PAGE_SHIFT; - physical = dma->pagelist[page]; - - DRM_DEBUG("0x%08x (page %lu) => 0x%08lx\n", offset, page, physical); - return atop(physical); -} - -int drm_mmap(dev_t kdev, vm_offset_t offset, int prot) -{ - drm_device_t *dev = kdev->si_drv1; - drm_map_t *map = NULL; - int i; - - /* DRM_DEBUG("offset = 0x%x\n", offset); */ - - if (dev->dma - && offset >= 0 - && offset < ptoa(dev->dma->page_count)) - return drm_dma_mmap(kdev, offset, prot); - - /* A sequential search of a linked list is - fine here because: 1) there will only be - about 5-10 entries in the list and, 2) a - DRI client only has to do this mapping - once, so it doesn't have to be optimized - for performance, even if the list was a - bit longer. */ - for (i = 0; i < dev->map_count; i++) { - map = dev->maplist[i]; - /* DRM_DEBUG("considering 0x%x..0x%x\n", map->offset, map->offset + map->size - 1); */ - if (offset >= map->offset - && offset < map->offset + map->size) break; - } - - if (i >= dev->map_count) { - DRM_DEBUG("can't find map\n"); - return -1; - } - if (!map || ((map->flags&_DRM_RESTRICTED) && suser(curproc))) { - DRM_DEBUG("restricted map\n"); - return -1; - } - - switch (map->type) { - case _DRM_FRAME_BUFFER: - case _DRM_REGISTERS: - case _DRM_AGP: - return atop(offset); - case _DRM_SHM: - return atop(vtophys(offset)); - default: - return -1; /* This should never happen. */ - } - DRM_DEBUG("bailing out\n"); - - return -1; -} -- cgit v1.2.3