// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2013 Red Hat * Author: Rob Clark <robdclark@gmail.com> */ #include <linux/dma-buf.h> #include <drm/drm_prime.h> #include "msm_drv.h" #include "msm_gem.h" struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj) { struct msm_gem_object *msm_obj = to_msm_bo(obj); int npages = obj->size >> PAGE_SHIFT; if (WARN_ON(!msm_obj->pages)) /* should have already pinned! */ return ERR_PTR(-ENOMEM); return drm_prime_pages_to_sg(obj->dev, msm_obj->pages, npages); } int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map) { void *vaddr; vaddr = msm_gem_get_vaddr(obj); if (IS_ERR(vaddr)) return PTR_ERR(vaddr); iosys_map_set_vaddr(map, vaddr); return 0; } void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map) { msm_gem_put_vaddr(obj); } struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sg) { return msm_gem_import(dev, attach->dmabuf, sg); } int msm_gem_prime_pin(struct drm_gem_object *obj) { if (!obj->import_attach) msm_gem_pin_pages(obj); return 0; } void msm_gem_prime_unpin(struct drm_gem_object *obj) { if (!obj->import_attach) msm_gem_unpin_pages(obj); }