drm/nouveau: have ttm's fault handler called directly
There's no good reason for us to have our own anymore, this is left over
from an early port to these TTM interfaces.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 187eb84..c385d50 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -28,45 +28,17 @@
#include "nouveau_drv.h"
-static struct vm_operations_struct nouveau_ttm_vm_ops;
-static const struct vm_operations_struct *ttm_vm_ops;
-
-static int
-nouveau_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
- struct ttm_buffer_object *bo = vma->vm_private_data;
- int ret;
-
- if (unlikely(bo == NULL))
- return VM_FAULT_NOPAGE;
-
- ret = ttm_vm_ops->fault(vma, vmf);
- return ret;
-}
-
int
nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct drm_file *file_priv = filp->private_data;
struct drm_nouveau_private *dev_priv =
file_priv->minor->dev->dev_private;
- int ret;
if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
return drm_mmap(filp, vma);
- ret = ttm_bo_mmap(filp, vma, &dev_priv->ttm.bdev);
- if (unlikely(ret != 0))
- return ret;
-
- if (unlikely(ttm_vm_ops == NULL)) {
- ttm_vm_ops = vma->vm_ops;
- nouveau_ttm_vm_ops = *ttm_vm_ops;
- nouveau_ttm_vm_ops.fault = &nouveau_ttm_fault;
- }
-
- vma->vm_ops = &nouveau_ttm_vm_ops;
- return 0;
+ return ttm_bo_mmap(filp, vma, &dev_priv->ttm.bdev);
}
static int