cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mtk_drm_gem.h (1588B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (c) 2015 MediaTek Inc.
      4 */
      5
      6#ifndef _MTK_DRM_GEM_H_
      7#define _MTK_DRM_GEM_H_
      8
      9#include <drm/drm_gem.h>
     10
     11/*
     12 * mtk drm buffer structure.
     13 *
     14 * @base: a gem object.
     15 *	- a new handle to this gem object would be created
     16 *	by drm_gem_handle_create().
     17 * @cookie: the return value of dma_alloc_attrs(), keep it for dma_free_attrs()
     18 * @kvaddr: kernel virtual address of gem buffer.
     19 * @dma_addr: dma address of gem buffer.
     20 * @dma_attrs: dma attributes of gem buffer.
     21 *
     22 * P.S. this object would be transferred to user as kms_bo.handle so
     23 *	user can access the buffer through kms_bo.handle.
     24 */
     25struct mtk_drm_gem_obj {
     26	struct drm_gem_object	base;
     27	void			*cookie;
     28	void			*kvaddr;
     29	dma_addr_t		dma_addr;
     30	unsigned long		dma_attrs;
     31	struct sg_table		*sg;
     32	struct page		**pages;
     33};
     34
     35#define to_mtk_gem_obj(x)	container_of(x, struct mtk_drm_gem_obj, base)
     36
     37void mtk_drm_gem_free_object(struct drm_gem_object *gem);
     38struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev, size_t size,
     39					   bool alloc_kmap);
     40int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
     41			    struct drm_mode_create_dumb *args);
     42struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj);
     43struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev,
     44			struct dma_buf_attachment *attach, struct sg_table *sg);
     45int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
     46void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj,
     47			      struct iosys_map *map);
     48
     49#endif