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Diffstat (limited to 'linux/drm_vm.h')
-rw-r--r--linux/drm_vm.h30
1 files changed, 23 insertions, 7 deletions
diff --git a/linux/drm_vm.h b/linux/drm_vm.h
index 4db521de..d8e77f79 100644
--- a/linux/drm_vm.h
+++ b/linux/drm_vm.h
@@ -126,7 +126,7 @@ void DRM(vm_shm_close)(struct vm_area_struct *vma)
{
drm_file_t *priv = vma->vm_file->private_data;
drm_device_t *dev = priv->dev;
- drm_vma_entry_t *pt, *prev;
+ drm_vma_entry_t *pt, *prev, *next;
drm_map_t *map;
drm_map_list_t *r_list;
struct list_head *list;
@@ -146,7 +146,8 @@ void DRM(vm_shm_close)(struct vm_area_struct *vma)
#endif
down(&dev->struct_sem);
- for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
+ for (pt = dev->vmalist, prev = NULL; pt; pt = next) {
+ next = pt->next;
#if LINUX_VERSION_CODE >= 0x020300
if (pt->vma->vm_private_data == map) found_maps++;
#else
@@ -159,6 +160,8 @@ void DRM(vm_shm_close)(struct vm_area_struct *vma)
dev->vmalist = pt->next;
}
DRM(free)(pt, sizeof(*pt), DRM_MEM_VMAS);
+ } else {
+ prev = pt;
}
}
/* We were the only map that was found */
@@ -365,6 +368,19 @@ int DRM(mmap_dma)(struct file *filp, struct vm_area_struct *vma)
return 0;
}
+#ifndef DRIVER_GET_MAP_OFS
+#define DRIVER_GET_MAP_OFS() (map->offset)
+#endif
+
+#ifndef DRIVER_GET_REG_OFS
+#ifdef __alpha__
+#define DRIVER_GET_REG_OFS() (dev->hose->dense_mem_base - \
+ dev->hose->mem_space->start)
+#else
+#define DRIVER_GET_REG_OFS() 0
+#endif
+#endif
+
int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
{
drm_file_t *priv = filp->private_data;
@@ -389,10 +405,13 @@ int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
for performance, even if the list was a
bit longer. */
list_for_each(list, &dev->maplist->head) {
+ unsigned long off;
+
r_list = (drm_map_list_t *)list;
map = r_list->map;
if (!map) continue;
- if (map->offset == VM_OFFSET(vma)) break;
+ off = DRIVER_GET_MAP_OFS();
+ if (off == VM_OFFSET(vma)) break;
}
if (!map || ((map->flags&_DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN)))
@@ -433,10 +452,7 @@ int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
#endif
vma->vm_flags |= VM_IO; /* not in core dump */
}
-#ifdef __alpha__
- offset = dev->hose->dense_mem_base -
- dev->hose->mem_space->start;
-#endif
+ offset = DRIVER_GET_REG_OFS();
if (remap_page_range(vma->vm_start,
VM_OFFSET(vma) + offset,
vma->vm_end - vma->vm_start,