nouveau: add stub dma-buf mmap functionality.

This just adds a stub until we have some users in place to test
this with.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_prime.c b/drivers/gpu/drm/nouveau/nouveau_prime.c
index c58aab7370c5..e2bcd4e54654 100644
--- a/drivers/gpu/drm/nouveau/nouveau_prime.c
+++ b/drivers/gpu/drm/nouveau/nouveau_prime.c
@@ -61,6 +61,11 @@ static void nouveau_gem_kunmap(struct dma_buf *dma_buf, unsigned long page_num,
 
 }
 
+static int nouveau_gem_prime_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma)
+{
+        return -EINVAL;
+}
+
 static const struct dma_buf_ops nouveau_dmabuf_ops =  {
         .map_dma_buf = nouveau_gem_map_dma_buf,
         .unmap_dma_buf = nouveau_gem_unmap_dma_buf,
@@ -69,6 +74,7 @@ static const struct dma_buf_ops nouveau_dmabuf_ops =  {
         .kmap_atomic = nouveau_gem_kmap_atomic,
         .kunmap = nouveau_gem_kunmap,
         .kunmap_atomic = nouveau_gem_kunmap_atomic,
+        .mmap = nouveau_gem_prime_mmap,
 };
 
 static int