/**
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* Copyright (C) 2016 Fuzhou Rockchip Electronics Co., Ltd
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* author: Jung Zhao jung.zhao@rock-chips.com
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __IEP_IOMMU_OPS_H__
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#define __IEP_IOMMU_OPS_H__
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#include <linux/platform_device.h>
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#include <linux/rockchip-iovmm.h>
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#include "iep_drv.h"
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#define BUFFER_LIST_MAX_NUMS 30
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#define ALLOCATOR_USE_ION 0x00000000
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#define ALLOCATOR_USE_DRM 0x00000001
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#define DEBUG_IOMMU_OPS_DUMP 0x00020000
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#define DEBUG_IOMMU_NORMAL 0x00040000
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#define vpu_iommu_debug_func(debug_level, type, fmt, args...) \
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do { \
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if (unlikely(debug_level & type)) { \
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pr_info("%s:%d: " fmt, \
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__func__, __LINE__, ##args); \
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} \
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} while (0)
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#define vpu_iommu_debug(debug_level, type, fmt, args...) \
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do { \
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if (unlikely(debug_level & type)) { \
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pr_info(fmt, ##args); \
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} \
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} while (0)
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struct iep_iommu_info;
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struct iep_iommu_session_info;
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struct iep_iommu_ops {
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int (*create)(struct iep_iommu_info *iommu_info);
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int (*import)(struct iep_iommu_session_info *session_info, int fd);
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int (*free)(struct iep_iommu_session_info *session_info, int idx);
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int (*free_fd)(struct iep_iommu_session_info *session_info, int fd);
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int (*map_iommu)(struct iep_iommu_session_info *session_info,
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int idx,
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unsigned long *iova, unsigned long *size);
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int (*unmap_iommu)(struct iep_iommu_session_info *session_info,
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int idx);
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int (*destroy)(struct iep_iommu_info *iommu_info);
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void (*dump)(struct iep_iommu_session_info *session_info);
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int (*attach)(struct iep_iommu_info *iommu_info);
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void (*detach)(struct iep_iommu_info *iommu_info);
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void (*clear)(struct iep_iommu_session_info *session_info);
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};
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struct iep_iommu_session_info {
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struct list_head head;
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struct iep_session *session;
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int buffer_nums;
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struct list_head buffer_list;
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struct mutex list_mutex;
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int max_idx;
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struct device *dev;
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struct device *mmu_dev;
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struct iep_iommu_info *iommu_info;
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int debug_level;
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};
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struct iep_iommu_info {
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struct list_head session_list;
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struct mutex list_mutex;
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struct mutex iommu_mutex;
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struct device *dev;
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struct device *mmu_dev;
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struct iep_iommu_ops *ops;
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int debug_level;
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void *private;
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};
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#ifdef CONFIG_DRM
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void iep_iommu_drm_set_ops(struct iep_iommu_info *iommu_info);
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#endif
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struct iep_iommu_info *iep_iommu_info_create(struct device *dev,
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struct device *mmu_dev,
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int alloc_type);
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int iep_iommu_info_destroy(struct iep_iommu_info *iommu_info);
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int iep_iommu_create(struct iep_iommu_info *iommu_info);
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int iep_iommu_import(struct iep_iommu_info *iommu_info,
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struct iep_session *session, int fd);
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int iep_iommu_free(struct iep_iommu_info *iommu_info,
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struct iep_session *session, int idx);
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int iep_iommu_free_fd(struct iep_iommu_info *iommu_info,
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struct iep_session *session, int fd);
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int iep_iommu_map_iommu(struct iep_iommu_info *iommu_info,
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struct iep_session *session,
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int idx,
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unsigned long *iova,
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unsigned long *size);
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int iep_iommu_unmap_iommu(struct iep_iommu_info *iommu_info,
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struct iep_session *session,
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int idx);
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int iep_iommu_destroy(struct iep_iommu_info *iommu_info);
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void iep_iommu_dump(struct iep_iommu_info *iommu_info,
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struct iep_session *session);
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void iep_iommu_clear(struct iep_iommu_info *iommu_info,
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struct iep_session *session);
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int iep_iommu_attach(struct iep_iommu_info *iommu_info);
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void iep_iommu_detach(struct iep_iommu_info *iommu_info);
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#endif
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