Currently this seems to work by converting the sgt into a pages array, and then treating it like a native object. Do the right thing and redirect mmap to the exporter.
With this nothing is calling get_pages anymore on imported dma-buf, and we can start to remove the use of the ->pages array for that case. v2: Rebase Cc: Gerd Hoffmann <[email protected]> Cc: Rob Herring <[email protected]> Cc: Noralf Trønnes <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> --- drivers/gpu/drm/drm_gem_shmem_helper.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index b9cba5cc61c3..117a7841e284 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -551,6 +551,9 @@ int drm_gem_shmem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) /* Remove the fake offset */ vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node); + if (obj->import_attach) + return dma_buf_mmap(obj->dma_buf, vma, 0); + shmem = to_drm_gem_shmem_obj(obj); ret = drm_gem_shmem_get_pages(shmem); -- 2.26.2 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
