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daabc5c647
DMA ops are a helper for architectures and not for drivers to override the
DMA implementation. Driver should not override the DMA implementation.
This patch removes the dma_ops override from auxiliary device and adds
driver-internal helpers that use the actual DMA mapping APIs.
Fixes: 9163d83573 ("media: intel/ipu6: add IPU6 DMA mapping API and MMU table")
Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
[Sakari Ailus: Fix the commit message a little.]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (C) 2013--2024 Intel Corporation */
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#ifndef IPU6_DMA_H
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#define IPU6_DMA_H
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#include <linux/dma-map-ops.h>
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#include <linux/dma-mapping.h>
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#include <linux/iova.h>
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#include <linux/iova.h>
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#include <linux/scatterlist.h>
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#include <linux/types.h>
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#include "ipu6-bus.h"
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struct ipu6_mmu_info;
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struct ipu6_dma_mapping {
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struct ipu6_mmu_info *mmu_info;
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struct iova_domain iovad;
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};
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void ipu6_dma_sync_single(struct ipu6_bus_device *sys, dma_addr_t dma_handle,
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size_t size);
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void ipu6_dma_sync_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
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int nents);
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void ipu6_dma_sync_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt);
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void *ipu6_dma_alloc(struct ipu6_bus_device *sys, size_t size,
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dma_addr_t *dma_handle, gfp_t gfp,
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unsigned long attrs);
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void ipu6_dma_free(struct ipu6_bus_device *sys, size_t size, void *vaddr,
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dma_addr_t dma_handle, unsigned long attrs);
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int ipu6_dma_mmap(struct ipu6_bus_device *sys, struct vm_area_struct *vma,
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void *addr, dma_addr_t iova, size_t size,
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unsigned long attrs);
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int ipu6_dma_map_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
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int nents, enum dma_data_direction dir,
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unsigned long attrs);
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void ipu6_dma_unmap_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
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int nents, enum dma_data_direction dir,
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unsigned long attrs);
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int ipu6_dma_map_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
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enum dma_data_direction dir, unsigned long attrs);
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void ipu6_dma_unmap_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
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enum dma_data_direction dir, unsigned long attrs);
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int ipu6_dma_get_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
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void *cpu_addr, dma_addr_t handle, size_t size,
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unsigned long attrs);
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#endif /* IPU6_DMA_H */
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