Am 04.01.2018 um 22:12 schrieb Samuel Li:
> Change-Id: I03c22a890d2305f3243d88019d1a28bddd4ddda7
> Signed-off-by: Samuel Li <Samuel.Li at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/gpu/drm/drm_prime.c | 53 ++++++++++++++++++++++++++-------------------
> include/drm/drm_prime.h | 22 +++++++++++++++++++
> 2 files changed, 53 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
> index 8de93a2..68a69e9 100644
> --- a/drivers/gpu/drm/drm_prime.c
> +++ b/drivers/gpu/drm/drm_prime.c
> @@ -180,9 +180,8 @@ static int drm_prime_lookup_buf_handle(struct drm_prime_file_private *prime_fpri
> return -ENOENT;
> }
>
> -static int drm_gem_map_attach(struct dma_buf *dma_buf,
> - struct device *target_dev,
> - struct dma_buf_attachment *attach)
> +int drm_gem_map_attach(struct dma_buf *dma_buf, struct device *target_dev,
> + struct dma_buf_attachment *attach)
> {
> struct drm_prime_attachment *prime_attach;
> struct drm_gem_object *obj = dma_buf->priv;
> @@ -200,9 +199,10 @@ static int drm_gem_map_attach(struct dma_buf *dma_buf,
>
> return dev->driver->gem_prime_pin(obj);
> }
> +EXPORT_SYMBOL(drm_gem_map_attach);
>
> -static void drm_gem_map_detach(struct dma_buf *dma_buf,
> - struct dma_buf_attachment *attach)
> +void drm_gem_map_detach(struct dma_buf *dma_buf,
> + struct dma_buf_attachment *attach)
> {
> struct drm_prime_attachment *prime_attach = attach->priv;
> struct drm_gem_object *obj = dma_buf->priv;
> @@ -227,6 +227,7 @@ static void drm_gem_map_detach(struct dma_buf *dma_buf,
> kfree(prime_attach);
> attach->priv = NULL;
> }
> +EXPORT_SYMBOL(drm_gem_map_detach);
>
> void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv,
> struct dma_buf *dma_buf)
> @@ -253,8 +254,8 @@ void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpr
> }
> }
>
> -static struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
> - enum dma_data_direction dir)
> +struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
> + enum dma_data_direction dir)
> {
> struct drm_prime_attachment *prime_attach = attach->priv;
> struct drm_gem_object *obj = attach->dmabuf->priv;
> @@ -289,13 +290,15 @@ static struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
>
> return sgt;
> }
> +EXPORT_SYMBOL(drm_gem_map_dma_buf);
>
> -static void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
> - struct sg_table *sgt,
> - enum dma_data_direction dir)
> +void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
> + struct sg_table *sgt,
> + enum dma_data_direction dir)
> {
> /* nothing to be done here */
> }
> +EXPORT_SYMBOL(drm_gem_unmap_dma_buf);
>
> /**
> * drm_gem_dmabuf_export - dma_buf export implementation for GEM
> @@ -346,47 +349,52 @@ void drm_gem_dmabuf_release(struct dma_buf *dma_buf)
> }
> EXPORT_SYMBOL(drm_gem_dmabuf_release);
>
> -static void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf)
> +void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf)
> {
> struct drm_gem_object *obj = dma_buf->priv;
> struct drm_device *dev = obj->dev;
>
> return dev->driver->gem_prime_vmap(obj);
> }
> +EXPORT_SYMBOL(drm_gem_dmabuf_vmap);
>
> -static void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
> +void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
> {
> struct drm_gem_object *obj = dma_buf->priv;
> struct drm_device *dev = obj->dev;
>
> dev->driver->gem_prime_vunmap(obj, vaddr);
> }
> +EXPORT_SYMBOL(drm_gem_dmabuf_vunmap);
>
> -static void *drm_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
> - unsigned long page_num)
> +void *drm_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
> + unsigned long page_num)
> {
> return NULL;
> }
> +EXPORT_SYMBOL(drm_gem_dmabuf_kmap_atomic);
>
> -static void drm_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
> - unsigned long page_num, void *addr)
> +void drm_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
> + unsigned long page_num, void *addr)
> {
>
> }
> -static void *drm_gem_dmabuf_kmap(struct dma_buf *dma_buf,
> - unsigned long page_num)
> +EXPORT_SYMBOL(drm_gem_dmabuf_kunmap_atomic);
> +
> +void *drm_gem_dmabuf_kmap(struct dma_buf *dma_buf, unsigned long page_num)
> {
> return NULL;
> }
> +EXPORT_SYMBOL(drm_gem_dmabuf_kmap);
>
> -static void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf,
> - unsigned long page_num, void *addr)
> +void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf, unsigned long page_num,
> + void *addr)
> {
>
> }
> +EXPORT_SYMBOL(drm_gem_dmabuf_kunmap);
>
> -static int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf,
> - struct vm_area_struct *vma)
> +int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma)
> {
> struct drm_gem_object *obj = dma_buf->priv;
> struct drm_device *dev = obj->dev;
> @@ -396,6 +404,7 @@ static int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf,
>
> return dev->driver->gem_prime_mmap(obj, vma);
> }
> +EXPORT_SYMBOL(drm_gem_dmabuf_mmap);
>
> static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
> .attach = drm_gem_map_attach,
> diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h
> index 9cd9e36..4d5f5d6 100644
> --- a/include/drm/drm_prime.h
> +++ b/include/drm/drm_prime.h
> @@ -54,6 +54,9 @@ struct device;
>
> struct dma_buf_export_info;
> struct dma_buf;
> +struct dma_buf_attachment;
> +
> +enum dma_data_direction;
>
> struct drm_device;
> struct drm_gem_object;
> @@ -79,6 +82,25 @@ int drm_gem_prime_fd_to_handle(struct drm_device *dev,
> struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
> struct dma_buf_export_info *exp_info);
> void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
> +int drm_gem_map_attach(struct dma_buf *dma_buf, struct device *target_dev,
> + struct dma_buf_attachment *attach);
> +void drm_gem_map_detach(struct dma_buf *dma_buf,
> + struct dma_buf_attachment *attach);
> +struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
> + enum dma_data_direction dir);
> +void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
> + struct sg_table *sgt,
> + enum dma_data_direction dir);
> +void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf);
> +void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr);
> +void *drm_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
> + unsigned long page_num);
> +void drm_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
> + unsigned long page_num, void *addr);
> +void *drm_gem_dmabuf_kmap(struct dma_buf *dma_buf, unsigned long page_num);
> +void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf, unsigned long page_num,
> + void *addr);
> +int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma);
>
> int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
> dma_addr_t *addrs, int max_pages);
