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 ALLOCATOR_USE_ION 0x00000000
23 #define ALLOCATOR_USE_DRM 0x00000001
25 #define DEBUG_IOMMU_OPS_DUMP 0x00020000
27 #define vpu_iommu_debug_func(debug_level, type, fmt, args...) \
29 if (unlikely(debug_level & type)) { \
30 pr_info("%s:%d: " fmt, \
31 __func__, __LINE__, ##args); \
34 #define vpu_iommu_debug(debug_level, type, fmt, args...) \
36 if (unlikely(debug_level & type)) { \
37 pr_info(fmt, ##args); \
41 struct vcodec_iommu_info;
42 struct vcodec_iommu_session_info;
44 struct vcodec_iommu_ops {
45 int (*create)(struct vcodec_iommu_info *iommu_info);
46 int (*import)(struct vcodec_iommu_session_info *session_info, int fd);
47 int (*free)(struct vcodec_iommu_session_info *session_info, int idx);
48 int (*free_fd)(struct vcodec_iommu_session_info *session_info, int fd);
49 void *(*map_kernel)(struct vcodec_iommu_session_info *session_info,
51 int (*unmap_kernel)(struct vcodec_iommu_session_info *session_info,
53 int (*map_iommu)(struct vcodec_iommu_session_info *session_info,
55 unsigned long *iova, unsigned long *size);
56 int (*unmap_iommu)(struct vcodec_iommu_session_info *session_info,
58 int (*destroy)(struct vcodec_iommu_info *iommu_info);
59 void (*dump)(struct vcodec_iommu_session_info *session_info);
60 int (*attach)(struct vcodec_iommu_info *iommu_info);
61 void (*detach)(struct vcodec_iommu_info *iommu_info);
62 void (*clear)(struct vcodec_iommu_session_info *session_info);
65 struct vcodec_iommu_session_info {
66 struct list_head head;
67 struct vpu_session *session;
68 struct list_head buffer_list;
69 struct mutex list_mutex;
72 struct device *mmu_dev;
73 struct vcodec_iommu_info *iommu_info;
77 struct vcodec_iommu_info {
78 struct list_head session_list;
79 struct mutex list_mutex;
80 struct mutex iommu_mutex;
82 struct device *mmu_dev;
83 struct vcodec_iommu_ops *ops;
89 void vcodec_iommu_drm_set_ops(struct vcodec_iommu_info *iommu_info);
92 void vcodec_iommu_ion_set_ops(struct vcodec_iommu_info *iommu_info);
95 struct vcodec_iommu_info *vcodec_iommu_info_create(struct device *dev,
96 struct device *mmu_dev,
98 int vcodec_iommu_info_destroy(struct vcodec_iommu_info *iommu_info);
100 int vcodec_iommu_create(struct vcodec_iommu_info *iommu_info);
101 int vcodec_iommu_import(struct vcodec_iommu_info *iommu_info,
102 struct vpu_session *session, int fd);
103 int vcodec_iommu_free(struct vcodec_iommu_info *iommu_info,
104 struct vpu_session *session, int idx);
105 int vcodec_iommu_free_fd(struct vcodec_iommu_info *iommu_info,
106 struct vpu_session *session, int fd);
107 void *vcodec_iommu_map_kernel(struct vcodec_iommu_info *iommu_info,
108 struct vpu_session *session, int idx);
109 int vcodec_iommu_unmap_kernel(struct vcodec_iommu_info *iommu_info,
110 struct vpu_session *session, int idx);
111 int vcodec_iommu_map_iommu(struct vcodec_iommu_info *iommu_info,
112 struct vpu_session *session,
115 unsigned long *size);
116 int vcodec_iommu_unmap_iommu(struct vcodec_iommu_info *iommu_info,
117 struct vpu_session *session,
119 int vcodec_iommu_destroy(struct vcodec_iommu_info *iommu_info);
120 void vcodec_iommu_dump(struct vcodec_iommu_info *iommu_info,
121 struct vpu_session *session);
122 void vcodec_iommu_clear(struct vcodec_iommu_info *iommu_info,
123 struct vpu_session *session);
125 int vcodec_iommu_attach(struct vcodec_iommu_info *iommu_info);
126 void vcodec_iommu_detach(struct vcodec_iommu_info *iommu_info);