121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Samsung Exynos SoC series dsp driver
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*
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* Copyright (c) 2019 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*/
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#ifndef __HW_DSP_MEMORY_H__
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#define __HW_DSP_MEMORY_H__
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#include <linux/dma-buf.h>
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#ifdef CONFIG_DMABUF_HEAPS
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#include <linux/dma-heap.h>
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#endif
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#define DSP_MEM_NAME_LEN (16)
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struct dsp_system;
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struct dsp_memory;
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struct dsp_buffer {
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int fd;
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size_t size;
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unsigned int offset;
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bool cached;
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struct list_head list;
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struct dma_buf *dbuf;
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size_t dbuf_size;
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enum dma_data_direction dir;
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struct dma_buf_attachment *attach;
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struct sg_table *sgt;
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dma_addr_t iova;
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void *kvaddr;
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};
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struct dsp_priv_mem {
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char name[DSP_MEM_NAME_LEN];
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size_t size;
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size_t min_size;
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size_t max_size;
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size_t used_size;
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long flags;
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bool kmap;
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bool fixed_iova;
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bool backup;
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struct dma_buf *dbuf;
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size_t dbuf_size;
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enum dma_data_direction dir;
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struct dma_buf_attachment *attach;
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struct sg_table *sgt;
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dma_addr_t iova;
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void *kvaddr;
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void *bac_kvaddr;
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};
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struct dsp_reserved_mem {
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char name[DSP_MEM_NAME_LEN];
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phys_addr_t paddr;
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size_t size;
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size_t used_size;
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dma_addr_t iova;
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long flags;
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bool kmap;
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void *kvaddr;
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};
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struct dsp_memory_shared_id {
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int fw_master;
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int ivp_pm;
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int dl_out;
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int mbox_pool;
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int fw_log;
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};
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struct dsp_memory_ops {
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int (*map_buffer)(struct dsp_memory *mem, struct dsp_buffer *buf);
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int (*unmap_buffer)(struct dsp_memory *mem, struct dsp_buffer *buf);
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int (*sync_for_device)(struct dsp_memory *mem, struct dsp_buffer *buf);
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int (*sync_for_cpu)(struct dsp_memory *mem, struct dsp_buffer *buf);
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int (*ion_alloc)(struct dsp_memory *mem, struct dsp_priv_mem *pmem);
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void (*ion_free)(struct dsp_memory *mem, struct dsp_priv_mem *pmem);
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int (*ion_alloc_secure)(struct dsp_memory *mem,
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struct dsp_priv_mem *pmem);
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void (*ion_free_secure)(struct dsp_memory *mem,
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struct dsp_priv_mem *pmem);
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int (*map_reserved_mem)(struct dsp_memory *mem,
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struct dsp_reserved_mem *rmem);
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void (*unmap_reserved_mem)(struct dsp_memory *mem,
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struct dsp_reserved_mem *rmem);
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int (*open)(struct dsp_memory *mem);
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int (*close)(struct dsp_memory *mem);
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int (*probe)(struct dsp_memory *mem, void *sys);
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void (*remove)(struct dsp_memory *mem);
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};
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struct dsp_memory {
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struct device *dev;
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struct iommu_domain *domain;
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#ifdef CONFIG_DMABUF_HEAPS
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struct dma_heap *system_heap;
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struct dma_heap *system_uncached_heap;
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struct dma_heap *secure_heap;
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#endif
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struct dsp_priv_mem *priv_mem;
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unsigned int priv_mem_count;
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struct dsp_reserved_mem *reserved_mem;
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unsigned int reserved_mem_count;
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struct dsp_priv_mem sec_mem;
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struct dsp_memory_shared_id shared_id;
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const struct dsp_memory_ops *ops;
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struct dsp_system *sys;
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};
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#endif
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