drm/prime: split array import functions v4
Mapping the imported pages of a DMA-buf into an userspace process
doesn't work as expected.
But we have reoccurring requests on this approach, so split the
functions for this and document that dma_buf_mmap() needs to be used
instead.
v2: split it into two functions
v3: rebased on latest changes
v4: update commit message a bit
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/403838/
diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h
index 0991a47..54f2c58 100644
--- a/include/drm/drm_prime.h
+++ b/include/drm/drm_prime.h
@@ -105,8 +105,9 @@ struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
-int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
- dma_addr_t *addrs, int max_pages);
-
+int drm_prime_sg_to_page_array(struct sg_table *sgt, struct page **pages,
+ int max_pages);
+int drm_prime_sg_to_dma_addr_array(struct sg_table *sgt, dma_addr_t *addrs,
+ int max_pages);
#endif /* __DRM_PRIME_H__ */