2 * Copyright (C) 2016 Fuzhou Rockchip Electronics Co., Ltd
3 * author: Jung Zhao jung.zhao@rock-chips.com
4 * Randy Li, randy.li@rock-chips.com
6 * This software is licensed under the terms of the GNU General Public
7 * License version 2, as published by the Free Software Foundation, and
8 * may be copied, distributed, and modified under those terms.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
17 #include <linux/slab.h>
19 #include "vcodec_iommu_ops.h"
22 struct vcodec_iommu_session_info *vcodec_iommu_get_session_info
23 (struct vcodec_iommu_info *iommu_info, struct vpu_session *session)
25 struct vcodec_iommu_session_info *session_info = NULL, *n;
27 list_for_each_entry_safe(session_info, n, &iommu_info->session_list,
29 if (session_info->session == session)
36 int vcodec_iommu_create(struct vcodec_iommu_info *iommu_info)
38 if (!iommu_info || !iommu_info->ops->create)
41 return iommu_info->ops->create(iommu_info);
44 int vcodec_iommu_import(struct vcodec_iommu_info *iommu_info,
45 struct vpu_session *session, int fd)
47 struct vcodec_iommu_session_info *session_info = NULL;
49 if (!iommu_info || !iommu_info->ops->import || !session)
52 session_info = vcodec_iommu_get_session_info(iommu_info, session);
54 session_info = kzalloc(sizeof(*session_info), GFP_KERNEL);
58 INIT_LIST_HEAD(&session_info->head);
59 INIT_LIST_HEAD(&session_info->buffer_list);
60 mutex_init(&session_info->list_mutex);
61 session_info->max_idx = 0;
62 session_info->session = session;
63 session_info->mmu_dev = iommu_info->mmu_dev;
64 session_info->dev = iommu_info->dev;
65 session_info->iommu_info = iommu_info;
66 mutex_lock(&iommu_info->list_mutex);
67 list_add_tail(&session_info->head, &iommu_info->session_list);
68 mutex_unlock(&iommu_info->list_mutex);
71 session_info->debug_level = iommu_info->debug_level;
73 return iommu_info->ops->import(session_info, fd);
76 int vcodec_iommu_free(struct vcodec_iommu_info *iommu_info,
77 struct vpu_session *session, int idx)
79 struct vcodec_iommu_session_info *session_info = NULL;
81 session_info = vcodec_iommu_get_session_info(iommu_info, session);
83 if (!iommu_info || !iommu_info->ops->free || !session_info)
86 return iommu_info->ops->free(session_info, idx);
89 int vcodec_iommu_free_fd(struct vcodec_iommu_info *iommu_info,
90 struct vpu_session *session, int fd)
92 struct vcodec_iommu_session_info *session_info = NULL;
94 session_info = vcodec_iommu_get_session_info(iommu_info, session);
96 if (!iommu_info || !iommu_info->ops->free_fd || !session_info)
99 return iommu_info->ops->free_fd(session_info, fd);
102 void *vcodec_iommu_map_kernel(struct vcodec_iommu_info *iommu_info,
103 struct vpu_session *session, int idx)
105 struct vcodec_iommu_session_info *session_info = NULL;
107 session_info = vcodec_iommu_get_session_info(iommu_info, session);
109 if (!iommu_info || !iommu_info->ops->map_kernel || !session_info)
112 return iommu_info->ops->map_kernel(session_info, idx);
115 int vcodec_iommu_unmap_kernel(struct vcodec_iommu_info *iommu_info,
116 struct vpu_session *session, int idx)
118 struct vcodec_iommu_session_info *session_info = NULL;
120 session_info = vcodec_iommu_get_session_info(iommu_info, session);
122 if (!iommu_info || !iommu_info->ops->unmap_kernel || !session_info)
125 return iommu_info->ops->unmap_kernel(session_info, idx);
128 int vcodec_iommu_map_iommu(struct vcodec_iommu_info *iommu_info,
129 struct vpu_session *session,
130 int idx, unsigned long *iova,
133 struct vcodec_iommu_session_info *session_info = NULL;
135 session_info = vcodec_iommu_get_session_info(iommu_info, session);
137 if (!iommu_info || !iommu_info->ops->map_iommu || !session_info)
140 return iommu_info->ops->map_iommu(session_info, idx, iova, size);
143 int vcodec_iommu_unmap_iommu(struct vcodec_iommu_info *iommu_info,
144 struct vpu_session *session, int idx)
146 struct vcodec_iommu_session_info *session_info = NULL;
148 session_info = vcodec_iommu_get_session_info(iommu_info, session);
150 if (!iommu_info || !iommu_info->ops->unmap_iommu || !session_info)
153 return iommu_info->ops->unmap_iommu(session_info, idx);
156 int vcodec_iommu_destroy(struct vcodec_iommu_info *iommu_info)
158 if (!iommu_info || !iommu_info->ops->destroy)
161 return iommu_info->ops->destroy(iommu_info);
164 void vcodec_iommu_dump(struct vcodec_iommu_info *iommu_info,
165 struct vpu_session *session)
167 struct vcodec_iommu_session_info *session_info = NULL;
169 session_info = vcodec_iommu_get_session_info(iommu_info, session);
171 if (!iommu_info || !iommu_info->ops->dump || !session_info)
174 iommu_info->ops->dump(session_info);
177 void vcodec_iommu_clear(struct vcodec_iommu_info *iommu_info,
178 struct vpu_session *session)
180 struct vcodec_iommu_session_info *session_info = NULL;
182 session_info = vcodec_iommu_get_session_info(iommu_info, session);
184 if (!iommu_info || !iommu_info->ops->clear || !session_info)
187 iommu_info->ops->clear(session_info);
189 mutex_lock(&iommu_info->list_mutex);
190 list_del_init(&session_info->head);
192 mutex_unlock(&iommu_info->list_mutex);
195 int vcodec_iommu_attach(struct vcodec_iommu_info *iommu_info)
197 if (!iommu_info || !iommu_info->ops->attach)
200 return iommu_info->ops->attach(iommu_info);
203 void vcodec_iommu_detach(struct vcodec_iommu_info *iommu_info)
205 if (!iommu_info || !iommu_info->ops->detach)
208 return iommu_info->ops->detach(iommu_info);
211 struct vcodec_iommu_info *
212 vcodec_iommu_info_create(struct device *dev,
213 struct device *mmu_dev,
216 struct vcodec_iommu_info *iommu_info = NULL;
218 iommu_info = kzalloc(sizeof(*iommu_info), GFP_KERNEL);
222 iommu_info->dev = dev;
223 INIT_LIST_HEAD(&iommu_info->session_list);
224 mutex_init(&iommu_info->list_mutex);
225 mutex_init(&iommu_info->iommu_mutex);
226 switch (alloc_type) {
228 case ALLOCATOR_USE_DRM:
229 vcodec_iommu_drm_set_ops(iommu_info);
233 case ALLOCATOR_USE_ION:
234 vcodec_iommu_ion_set_ops(iommu_info);
238 iommu_info->ops = NULL;
242 iommu_info->mmu_dev = mmu_dev;
244 vcodec_iommu_create(iommu_info);
249 int vcodec_iommu_info_destroy(struct vcodec_iommu_info *iommu_info)
251 vcodec_iommu_destroy(iommu_info);