64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
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/*
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* Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef __NVMAP_DEV_H
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#define __NVMAP_DEV_H
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#include <linux/platform_device.h>
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#include <linux/miscdevice.h>
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#include <linux/nvmap.h>
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#include "nvmap_heap.h"
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#include "nvmap_pp.h"
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#include "nvmap_structs.h"
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struct nvmap_device {
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struct rb_root handles;
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spinlock_t handle_lock;
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struct miscdevice dev_user;
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// TODO: heaps should be a double pointer
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struct nvmap_carveout_node *heaps;
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int nr_heaps;
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int nr_carveouts;
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#ifdef CONFIG_NVMAP_PAGE_POOLS
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struct nvmap_page_pool pool;
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#endif
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struct list_head clients;
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struct rb_root pids;
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struct mutex clients_lock;
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struct list_head lru_handles;
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spinlock_t lru_lock;
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struct dentry *handles_by_pid;
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struct dentry *debug_root;
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struct nvmap_platform_data *plat;
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struct rb_root tags;
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struct mutex tags_lock;
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u32 dynamic_dma_map_mask;
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u32 cpu_access_mask;
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};
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int nvmap_probe(struct platform_device *pdev);
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int nvmap_remove(struct platform_device *pdev);
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int nvmap_init(struct platform_device *pdev);
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extern struct nvmap_device *nvmap_dev;
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u32 nvmap_cpu_access_mask(void);
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struct nvmap_carveout_node *nvmap_dev_to_carveout(struct nvmap_device *dev, int i);
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int nvmap_dmabuf_stash_init(void);
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#endif /* __NVMAP_DEV_H */
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