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

This commit is contained in:
Thomas Hellstrom 2007-02-08 16:14:05 +11:00 committed by Dave Airlie
parent 756db73df7
commit 1545085a28
3 changed files with 14 additions and 13 deletions
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9
drivers/char/drm/drm_bufs.c
View File

@ -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;
}

4
drivers/char/drm/drm_proc.c
View File

@ -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);

14
drivers/char/drm/drm_vm.c
View File

@ -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;
}