blob: ff9f976d980797899522789af879413fe20a516a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/* 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);
int mtk_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
int mtk_drm_gem_mmap_buf(struct drm_gem_object *obj,
struct vm_area_struct *vma);
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);
void *mtk_drm_gem_prime_vmap(struct drm_gem_object *obj);
void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
#endif
|
