From: Rob Clark robdclark@chromium.org
Just plumbing the thing thru an extra layer.
Signed-off-by: Rob Clark robdclark@chromium.org --- drivers/gpu/drm/drm_prime.c | 12 ++++++++++++ include/drm/drm_drv.h | 7 +++++++ 2 files changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index e3f09f18110c..f58586e131c5 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -784,6 +784,17 @@ int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma) } EXPORT_SYMBOL(drm_gem_dmabuf_mmap);
+static int drm_gem_dmabuf_mmap_info(struct dma_buf *dma_buf) +{ + struct drm_gem_object *obj = dma_buf->priv; + struct drm_device *dev = obj->dev; + + if (!dev->driver->gem_prime_mmap_info) + return -ENOSYS; + + return dev->driver->gem_prime_mmap_info(obj); +} + static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = { .cache_sgt_mapping = true, .attach = drm_gem_map_attach, @@ -792,6 +803,7 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = { .unmap_dma_buf = drm_gem_unmap_dma_buf, .release = drm_gem_dmabuf_release, .mmap = drm_gem_dmabuf_mmap, + .mmap_info = drm_gem_dmabuf_mmap_info, .vmap = drm_gem_dmabuf_vmap, .vunmap = drm_gem_dmabuf_vunmap, }; diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index f6159acb8856..797c0f8c2dd0 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -355,6 +355,13 @@ struct drm_driver { */ int (*gem_prime_mmap)(struct drm_gem_object *obj, struct vm_area_struct *vma);
+ /** + * @gem_prim_mmap_info: + * + * Get info about mmap setup by gem_prime_mmap. See dma_buf_ops:mmap_info. + */ + int (*gem_prime_mmap_info)(struct drm_gem_object *obj); + /** * @dumb_create: *