2 * Copyright (C) 2016 Fuzhou Rockchip Electronics Co., Ltd
3 * author: Jung Zhao jung.zhao@rock-chips.com
5 * This software is licensed under the terms of the GNU General Public
6 * License version 2, as published by the Free Software Foundation, and
7 * may be copied, distributed, and modified under those terms.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
16 #ifndef __VCODEC_IOMMU_OPS_H__
17 #define __VCODEC_IOMMU_OPS_H__
19 #include <linux/platform_device.h>
20 #include "vcodec_service.h"
22 #define BUFFER_LIST_MAX_NUMS 30
24 #define ALLOCATOR_USE_ION 0x00000000
25 #define ALLOCATOR_USE_DRM 0x00000001
27 #define DEBUG_IOMMU_OPS_DUMP 0x00020000
28 #define DEBUG_IOMMU_NORMAL 0x00040000
30 #define vpu_iommu_debug_func(debug_level, type, fmt, args...) \
32 if (unlikely(debug_level & type)) { \
33 pr_info("%s:%d: " fmt, \
34 __func__, __LINE__, ##args); \
37 #define vpu_iommu_debug(debug_level, type, fmt, args...) \
39 if (unlikely(debug_level & type)) { \
40 pr_info(fmt, ##args); \
44 struct vcodec_iommu_info;
45 struct vcodec_iommu_session_info;
47 struct vcodec_iommu_ops {
48 int (*create)(struct vcodec_iommu_info *iommu_info);
49 int (*import)(struct vcodec_iommu_session_info *session_info, int fd);
50 int (*free)(struct vcodec_iommu_session_info *session_info, int idx);
51 int (*free_fd)(struct vcodec_iommu_session_info *session_info, int fd);
52 void *(*map_kernel)(struct vcodec_iommu_session_info *session_info,
54 int (*unmap_kernel)(struct vcodec_iommu_session_info *session_info,
56 int (*map_iommu)(struct vcodec_iommu_session_info *session_info,
58 unsigned long *iova, unsigned long *size);
59 int (*unmap_iommu)(struct vcodec_iommu_session_info *session_info,
61 int (*destroy)(struct vcodec_iommu_info *iommu_info);
62 void (*dump)(struct vcodec_iommu_session_info *session_info);
63 int (*attach)(struct vcodec_iommu_info *iommu_info);
64 void (*detach)(struct vcodec_iommu_info *iommu_info);
65 void (*clear)(struct vcodec_iommu_session_info *session_info);
68 struct vcodec_iommu_session_info {
69 struct list_head head;
70 struct vpu_session *session;
72 struct list_head buffer_list;
73 struct mutex list_mutex;
76 struct device *mmu_dev;
77 struct vcodec_iommu_info *iommu_info;
81 struct vcodec_iommu_info {
82 struct list_head session_list;
83 struct mutex list_mutex;
84 struct mutex iommu_mutex;
86 struct device *mmu_dev;
87 struct vcodec_iommu_ops *ops;
93 void vcodec_iommu_drm_set_ops(struct vcodec_iommu_info *iommu_info);
96 void vcodec_iommu_ion_set_ops(struct vcodec_iommu_info *iommu_info);
99 struct vcodec_iommu_info *vcodec_iommu_info_create(struct device *dev,
100 struct device *mmu_dev,
102 int vcodec_iommu_info_destroy(struct vcodec_iommu_info *iommu_info);
104 int vcodec_iommu_create(struct vcodec_iommu_info *iommu_info);
105 int vcodec_iommu_import(struct vcodec_iommu_info *iommu_info,
106 struct vpu_session *session, int fd);
107 int vcodec_iommu_free(struct vcodec_iommu_info *iommu_info,
108 struct vpu_session *session, int idx);
109 int vcodec_iommu_free_fd(struct vcodec_iommu_info *iommu_info,
110 struct vpu_session *session, int fd);
111 void *vcodec_iommu_map_kernel(struct vcodec_iommu_info *iommu_info,
112 struct vpu_session *session, int idx);
113 int vcodec_iommu_unmap_kernel(struct vcodec_iommu_info *iommu_info,
114 struct vpu_session *session, int idx);
115 int vcodec_iommu_map_iommu(struct vcodec_iommu_info *iommu_info,
116 struct vpu_session *session,
119 unsigned long *size);
120 int vcodec_iommu_unmap_iommu(struct vcodec_iommu_info *iommu_info,
121 struct vpu_session *session,
123 int vcodec_iommu_destroy(struct vcodec_iommu_info *iommu_info);
124 void vcodec_iommu_dump(struct vcodec_iommu_info *iommu_info,
125 struct vpu_session *session);
126 void vcodec_iommu_clear(struct vcodec_iommu_info *iommu_info,
127 struct vpu_session *session);
129 int vcodec_iommu_attach(struct vcodec_iommu_info *iommu_info);
130 void vcodec_iommu_detach(struct vcodec_iommu_info *iommu_info);