ipu6-dma.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/* Copyright (C) 2013--2024 Intel Corporation */
 3
 4#ifndef IPU6_DMA_H
 5#define IPU6_DMA_H
 6
 7#include <linux/iova.h>
 8#include <linux/scatterlist.h>
 9#include <linux/types.h>
10
11#include "ipu6-bus.h"
12
13struct ipu6_mmu_info;
14
15struct ipu6_dma_mapping {
16	struct ipu6_mmu_info *mmu_info;
17	struct iova_domain iovad;
18};
19
20void ipu6_dma_sync_single(struct ipu6_bus_device *sys, dma_addr_t dma_handle,
21			  size_t size);
22void ipu6_dma_sync_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
23		      int nents);
24void ipu6_dma_sync_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt);
25void *ipu6_dma_alloc(struct ipu6_bus_device *sys, size_t size,
26		     dma_addr_t *dma_handle, gfp_t gfp,
27		     unsigned long attrs);
28void ipu6_dma_free(struct ipu6_bus_device *sys, size_t size, void *vaddr,
29		   dma_addr_t dma_handle, unsigned long attrs);
30int ipu6_dma_mmap(struct ipu6_bus_device *sys, struct vm_area_struct *vma,
31		  void *addr, dma_addr_t iova, size_t size,
32		  unsigned long attrs);
33int ipu6_dma_map_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
34		    int nents, enum dma_data_direction dir,
35		    unsigned long attrs);
36void ipu6_dma_unmap_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
37		       int nents, enum dma_data_direction dir,
38		       unsigned long attrs);
39int ipu6_dma_map_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
40			 enum dma_data_direction dir, unsigned long attrs);
41void ipu6_dma_unmap_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
42			    enum dma_data_direction dir, unsigned long attrs);
43#endif /* IPU6_DMA_H */