blob: 122925dbe54755b12ba4caacd906261dda42c9e4 (
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2015-2016 MediaTek Inc.
* Author: Honghui Zhang <honghui.zhang@mediatek.com>
*/
#ifndef _MTK_IOMMU_H_
#define _MTK_IOMMU_H_
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/device.h>
#include <linux/io.h>
#include <linux/io-pgtable.h>
#include <linux/iommu.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
#include <soc/mediatek/smi.h>
#define MTK_LARB_COM_MAX 8
#define MTK_LARB_SUBCOM_MAX 4
struct mtk_iommu_suspend_reg {
union {
u32 standard_axi_mode;/* v1 */
u32 misc_ctrl;/* v2 */
};
u32 dcm_dis;
u32 ctrl_reg;
u32 int_control0;
u32 int_main_control;
u32 ivrp_paddr;
u32 vld_pa_rng;
u32 wr_len_ctrl;
};
enum mtk_iommu_plat {
M4U_MT2701,
M4U_MT2712,
M4U_MT6779,
M4U_MT8173,
M4U_MT8183,
};
struct mtk_iommu_plat_data {
enum mtk_iommu_plat m4u_plat;
u32 flags;
u32 inv_sel_reg;
unsigned char larbid_remap[MTK_LARB_COM_MAX][MTK_LARB_SUBCOM_MAX];
};
struct mtk_iommu_domain;
struct mtk_iommu_data {
void __iomem *base;
int irq;
struct device *dev;
struct clk *bclk;
phys_addr_t protect_base; /* protect memory base */
struct mtk_iommu_suspend_reg reg;
struct mtk_iommu_domain *m4u_dom;
struct iommu_group *m4u_group;
bool enable_4GB;
spinlock_t tlb_lock; /* lock for tlb range flush */
struct iommu_device iommu;
const struct mtk_iommu_plat_data *plat_data;
struct dma_iommu_mapping *mapping; /* For mtk_iommu_v1.c */
struct list_head list;
struct mtk_smi_larb_iommu larb_imu[MTK_LARB_NR_MAX];
};
static inline int compare_of(struct device *dev, void *data)
{
return dev->of_node == data;
}
static inline void release_of(struct device *dev, void *data)
{
of_node_put(data);
}
static inline int mtk_iommu_bind(struct device *dev)
{
struct mtk_iommu_data *data = dev_get_drvdata(dev);
return component_bind_all(dev, &data->larb_imu);
}
static inline void mtk_iommu_unbind(struct device *dev)
{
struct mtk_iommu_data *data = dev_get_drvdata(dev);
component_unbind_all(dev, &data->larb_imu);
}
#endif
|
