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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 503 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*/
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#include "msm_drv.h"
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#include "msm_gem.h"
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#include <linux/dma-buf.h>
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struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj)
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{
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struct msm_gem_object *msm_obj = to_msm_bo(obj);
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int npages = obj->size >> PAGE_SHIFT;
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if (WARN_ON(!msm_obj->pages)) /* should have already pinned! */
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return NULL;
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return drm_prime_pages_to_sg(msm_obj->pages, npages);
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}
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void *msm_gem_prime_vmap(struct drm_gem_object *obj)
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{
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return msm_gem_get_vaddr(obj);
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}
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void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
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{
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msm_gem_put_vaddr(obj);
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}
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int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
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{
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int ret;
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ret = drm_gem_mmap_obj(obj, obj->size, vma);
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if (ret < 0)
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return ret;
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return msm_gem_mmap_obj(vma->vm_private_data, vma);
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}
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struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
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struct dma_buf_attachment *attach, struct sg_table *sg)
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{
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return msm_gem_import(dev, attach->dmabuf, sg);
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}
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int msm_gem_prime_pin(struct drm_gem_object *obj)
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{
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if (!obj->import_attach)
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msm_gem_get_pages(obj);
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return 0;
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}
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void msm_gem_prime_unpin(struct drm_gem_object *obj)
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{
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if (!obj->import_attach)
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msm_gem_put_pages(obj);
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}
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