1caab277bSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
205b84911SRob Clark /*
305b84911SRob Clark * Copyright (C) 2013 Red Hat
405b84911SRob Clark * Author: Rob Clark <robdclark@gmail.com>
505b84911SRob Clark */
605b84911SRob Clark
7feea39a8SSam Ravnborg #include <linux/dma-buf.h>
8feea39a8SSam Ravnborg
9feea39a8SSam Ravnborg #include <drm/drm_prime.h>
10feea39a8SSam Ravnborg
1105b84911SRob Clark #include "msm_drv.h"
1205b84911SRob Clark #include "msm_gem.h"
1305b84911SRob Clark
msm_gem_prime_get_sg_table(struct drm_gem_object * obj)1405b84911SRob Clark struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj)
1505b84911SRob Clark {
1605b84911SRob Clark struct msm_gem_object *msm_obj = to_msm_bo(obj);
17ac451467SRob Clark int npages = obj->size >> PAGE_SHIFT;
18ac451467SRob Clark
19ac451467SRob Clark if (WARN_ON(!msm_obj->pages)) /* should have already pinned! */
20cf575e31SDan Carpenter return ERR_PTR(-ENOMEM);
21ac451467SRob Clark
22707d561fSGerd Hoffmann return drm_prime_pages_to_sg(obj->dev, msm_obj->pages, npages);
2305b84911SRob Clark }
2405b84911SRob Clark
msm_gem_prime_vmap(struct drm_gem_object * obj,struct iosys_map * map)257938f421SLucas De Marchi int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
2605b84911SRob Clark {
27b47f9f92SThomas Zimmermann void *vaddr;
28b47f9f92SThomas Zimmermann
29*52fe802fSRob Clark vaddr = msm_gem_get_vaddr_locked(obj);
30b47f9f92SThomas Zimmermann if (IS_ERR(vaddr))
31b47f9f92SThomas Zimmermann return PTR_ERR(vaddr);
327938f421SLucas De Marchi iosys_map_set_vaddr(map, vaddr);
33b47f9f92SThomas Zimmermann
34b47f9f92SThomas Zimmermann return 0;
3505b84911SRob Clark }
3605b84911SRob Clark
msm_gem_prime_vunmap(struct drm_gem_object * obj,struct iosys_map * map)377938f421SLucas De Marchi void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map)
3805b84911SRob Clark {
39*52fe802fSRob Clark msm_gem_put_vaddr_locked(obj);
4005b84911SRob Clark }
4105b84911SRob Clark
msm_gem_prime_import_sg_table(struct drm_device * dev,struct dma_buf_attachment * attach,struct sg_table * sg)4205b84911SRob Clark struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
43b5e9c1a2SMaarten Lankhorst struct dma_buf_attachment *attach, struct sg_table *sg)
4405b84911SRob Clark {
4579f0e202SRob Clark return msm_gem_import(dev, attach->dmabuf, sg);
4605b84911SRob Clark }
4705b84911SRob Clark
msm_gem_prime_pin(struct drm_gem_object * obj)4805b84911SRob Clark int msm_gem_prime_pin(struct drm_gem_object *obj)
4905b84911SRob Clark {
5005b84911SRob Clark if (!obj->import_attach)
51e7cd5ee9SRob Clark msm_gem_pin_pages(obj);
5205b84911SRob Clark return 0;
5305b84911SRob Clark }
5405b84911SRob Clark
msm_gem_prime_unpin(struct drm_gem_object * obj)5505b84911SRob Clark void msm_gem_prime_unpin(struct drm_gem_object *obj)
5605b84911SRob Clark {
5705b84911SRob Clark if (!obj->import_attach)
58e7cd5ee9SRob Clark msm_gem_unpin_pages(obj);
5905b84911SRob Clark }
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