50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (c) 2015 MediaTek Inc.
|
|
*/
|
|
|
|
#ifndef _MTK_DRM_GEM_H_
|
|
#define _MTK_DRM_GEM_H_
|
|
|
|
#include <drm/drm_gem.h>
|
|
|
|
/*
|
|
* mtk drm buffer structure.
|
|
*
|
|
* @base: a gem object.
|
|
* - a new handle to this gem object would be created
|
|
* by drm_gem_handle_create().
|
|
* @cookie: the return value of dma_alloc_attrs(), keep it for dma_free_attrs()
|
|
* @kvaddr: kernel virtual address of gem buffer.
|
|
* @dma_addr: dma address of gem buffer.
|
|
* @dma_attrs: dma attributes of gem buffer.
|
|
*
|
|
* P.S. this object would be transferred to user as kms_bo.handle so
|
|
* user can access the buffer through kms_bo.handle.
|
|
*/
|
|
struct mtk_drm_gem_obj {
|
|
struct drm_gem_object base;
|
|
void *cookie;
|
|
void *kvaddr;
|
|
dma_addr_t dma_addr;
|
|
unsigned long dma_attrs;
|
|
struct sg_table *sg;
|
|
struct page **pages;
|
|
};
|
|
|
|
#define to_mtk_gem_obj(x) container_of(x, struct mtk_drm_gem_obj, base)
|
|
|
|
void mtk_drm_gem_free_object(struct drm_gem_object *gem);
|
|
struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev, size_t size,
|
|
bool alloc_kmap);
|
|
int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
|
|
struct drm_mode_create_dumb *args);
|
|
struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj);
|
|
struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev,
|
|
struct dma_buf_attachment *attach, struct sg_table *sg);
|
|
int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
|
|
void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj,
|
|
struct iosys_map *map);
|
|
|
|
#endif
|