[MIPS] Remove IT8172-based platforms, ITE 8172G and Globespan IVR support.

[linux-2.6-omap-h63xx.git] / drivers / char / drm / drm_vm.c

diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c
index afb4f0a44b8182d0d2540ce0ebf9e413660ce5a3..b40ae438f5315343248930f32df8f53f10b38845 100644 (file)
--- a/drivers/char/drm/drm_vm.c
+++ b/drivers/char/drm/drm_vm.c
@@ -59,7 +59,7 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma,
        drm_device_t *dev = priv->head->dev;
        drm_map_t *map = NULL;
        drm_map_list_t *r_list;
-       struct list_head *list;
+       drm_hash_item_t *hash;
 
        /*
         * Find the right map
@@ -70,14 +70,11 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma,
        if (!dev->agp || !dev->agp->cant_use_aperture)
                goto vm_nopage_error;
 
-       list_for_each(list, &dev->maplist->head) {
-               r_list = list_entry(list, drm_map_list_t, head);
-               map = r_list->map;
-               if (!map)
-                       continue;
-               if (r_list->user_token == (vma->vm_pgoff << PAGE_SHIFT))
-                       break;
-       }
+       if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff << PAGE_SHIFT, &hash))
+               goto vm_nopage_error;
+
+       r_list = drm_hash_entry(hash, drm_map_list_t, hash);
+       map = r_list->map;
 
        if (map && map->type == _DRM_AGP) {
                unsigned long offset = address - vma->vm_start;
@@ -521,9 +518,8 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
        drm_file_t *priv = filp->private_data;
        drm_device_t *dev = priv->head->dev;
        drm_map_t *map = NULL;
-       drm_map_list_t *r_list;
        unsigned long offset = 0;
-       struct list_head *list;
+       drm_hash_item_t *hash;
 
        DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n",
                  vma->vm_start, vma->vm_end, vma->vm_pgoff << PAGE_SHIFT);
@@ -543,23 +539,12 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
            )
                return drm_mmap_dma(filp, vma);
 
-       /* 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. */
-       list_for_each(list, &dev->maplist->head) {
-
-               r_list = list_entry(list, drm_map_list_t, head);
-               map = r_list->map;
-               if (!map)
-                       continue;
-               if (r_list->user_token == vma->vm_pgoff << PAGE_SHIFT)
-                       break;
+       if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff << PAGE_SHIFT, &hash)) {
+               DRM_ERROR("Could not find map\n");
+               return -EINVAL;
        }
 
+       map = drm_hash_entry(hash, drm_map_list_t, hash)->map;
        if (!map || ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN)))
                return -EPERM;