drm: Allow for 44 bit user-tokens (or drm_file offsets)

3 files changed, 14 insertions, 13 deletions

diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index d917c8cb8a36..a6828cc14e58 100644
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -79,14 +79,14 @@ static int drm_map_handle(drm_device_t *dev, drm_hash_item_t *hash,
 
         if (!use_hashed_handle) {
                 int ret;
-                hash->key = user_token;
+                hash->key = user_token >> PAGE_SHIFT;
                 ret = drm_ht_insert_item(&dev->map_hash, hash);
                 if (ret != -EINVAL)
                         return ret;
         }
         return drm_ht_just_insert_please(&dev->map_hash, hash,
                                          user_token, 32 - PAGE_SHIFT - 3,
-                                         PAGE_SHIFT, DRM_MAP_HASH_OFFSET);
+                                         0, DRM_MAP_HASH_OFFSET >> PAGE_SHIFT);
 }
 
 /**
@@ -262,7 +262,7 @@ static int drm_addmap_core(drm_device_t * dev, unsigned int offset,
                 return ret;
         }
 
-        list->user_token = list->hash.key;
+        list->user_token = list->hash.key << PAGE_SHIFT;
         mutex_unlock(&dev->struct_mutex);
 
         *maplist = list;
@@ -347,7 +347,8 @@ int drm_rmmap_locked(drm_device_t *dev, drm_local_map_t *map)
 
                 if (r_list->map == map) {
                         list_del(list);
-                        drm_ht_remove_key(&dev->map_hash, r_list->user_token);
+                        drm_ht_remove_key(&dev->map_hash,
+                                          r_list->user_token >> PAGE_SHIFT);
                         drm_free(list, sizeof(*list), DRM_MEM_MAPS);
                         break;
                 }
diff --git a/drivers/char/drm/drm_proc.c b/drivers/char/drm/drm_proc.c
index 62d5fe15f046..7fd0da712142 100644
--- a/drivers/char/drm/drm_proc.c
+++ b/drivers/char/drm/drm_proc.c
@@ -500,7 +500,7 @@ static int drm__vma_info(char *buf, char **start, off_t offset, int request,
         for (pt = dev->vmalist; pt; pt = pt->next) {
                 if (!(vma = pt->vma))
                         continue;
-                DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx",
+                DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
                                pt->pid,
                                vma->vm_start,
                                vma->vm_end,
@@ -510,7 +510,7 @@ static int drm__vma_info(char *buf, char **start, off_t offset, int request,
                                vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
                                vma->vm_flags & VM_LOCKED ? 'l' : '-',
                                vma->vm_flags & VM_IO ? 'i' : '-',
-                               vma->vm_pgoff << PAGE_SHIFT);
+                               vma->vm_pgoff);
 
 #if defined(__i386__)
                 pgprot = pgprot_val(vma->vm_page_prot);
diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c
index 4e480583a27f..54a632848955 100644
--- a/drivers/char/drm/drm_vm.c
+++ b/drivers/char/drm/drm_vm.c
@@ -70,7 +70,7 @@ 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;
 
-        if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff << PAGE_SHIFT, &hash))
+        if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash))
                 goto vm_nopage_error;
 
         r_list = drm_hash_entry(hash, drm_map_list_t, hash);
@@ -463,8 +463,8 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
         lock_kernel();
         dev = priv->head->dev;
         dma = dev->dma;
-        DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n",
-                  vma->vm_start, vma->vm_end, vma->vm_pgoff << PAGE_SHIFT);
+        DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
+                  vma->vm_start, vma->vm_end, vma->vm_pgoff);
 
         /* Length must match exact page count */
         if (!dma || (length >> PAGE_SHIFT) != dma->page_count) {
@@ -537,8 +537,8 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
         unsigned long offset = 0;
         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);
+        DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
+                  vma->vm_start, vma->vm_end, vma->vm_pgoff);
 
         if (!priv->authenticated)
                 return -EACCES;
@@ -547,7 +547,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
          * the AGP mapped at physical address 0
          * --BenH.
          */
-        if (!(vma->vm_pgoff << PAGE_SHIFT)
+        if (!vma->vm_pgoff
 #if __OS_HAS_AGP
             && (!dev->agp
                 || dev->agp->agp_info.device->vendor != PCI_VENDOR_ID_APPLE)
@@ -555,7 +555,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
             )
                 return drm_mmap_dma(filp, vma);
 
-        if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff << PAGE_SHIFT, &hash)) {
+        if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) {
                 DRM_ERROR("Could not find map\n");
                 return -EINVAL;
         }