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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/*
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
* 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/>.
*/
#ifndef __MSM_MMU_H__
#define __MSM_MMU_H__
#include <linux/iommu.h>
struct msm_mmu;
enum msm_mmu_domain_type {
MSM_SMMU_DOMAIN_UNSECURE,
MSM_SMMU_DOMAIN_NRT_UNSECURE,
MSM_SMMU_DOMAIN_SECURE,
MSM_SMMU_DOMAIN_NRT_SECURE,
MSM_SMMU_DOMAIN_MAX,
};
struct msm_mmu_funcs {
int (*attach)(struct msm_mmu *mmu, const char **names, int cnt);
void (*detach)(struct msm_mmu *mmu);
int (*map)(struct msm_mmu *mmu, uint64_t iova, struct sg_table *sgt,
int prot);
int (*unmap)(struct msm_mmu *mmu, uint64_t iova, struct sg_table *sgt);
int (*map_sg)(struct msm_mmu *mmu, struct sg_table *sgt,
enum dma_data_direction dir);
void (*unmap_sg)(struct msm_mmu *mmu, struct sg_table *sgt,
enum dma_data_direction dir);
int (*map_dma_buf)(struct msm_mmu *mmu, struct sg_table *sgt,
struct dma_buf *dma_buf, int dir);
void (*unmap_dma_buf)(struct msm_mmu *mmu, struct sg_table *sgt,
struct dma_buf *dma_buf, int dir);
void (*destroy)(struct msm_mmu *mmu);
};
struct msm_mmu {
const struct msm_mmu_funcs *funcs;
struct device *dev;
};
static inline void msm_mmu_init(struct msm_mmu *mmu, struct device *dev,
const struct msm_mmu_funcs *funcs)
{
mmu->dev = dev;
mmu->funcs = funcs;
}
struct msm_mmu *msm_iommu_new(struct device *dev, struct iommu_domain *domain);
struct msm_mmu *msm_smmu_new(struct device *dev,
enum msm_mmu_domain_type domain);
struct msm_mmu *msm_iommu_new_dynamic(struct msm_mmu *orig);
#endif /* __MSM_MMU_H__ */
|
