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arm64: use asm-generic/dma-mapping.h

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Now that the Xen special cases are gone nothing worth mentioning is
left in the arm64 <asm/dma-mapping.h> file, so switch to use the
asm-generic version instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
This commit is contained in:
Christoph Hellwig 2019-07-24 14:07:28 +02:00
parent bf7954e797
commit 5489c8e0cf
3 changed files with 2 additions and 22 deletions
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1
arch/arm64/include/asm/Kbuild
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@ -4,6 +4,7 @@ generic-y += delay.h
generic-y += div64.h
generic-y += dma.h
generic-y += dma-contiguous.h
generic-y += dma-mapping.h
generic-y += early_ioremap.h
generic-y += emergency-restart.h
generic-y += hw_irq.h

22
arch/arm64/include/asm/dma-mapping.h
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@ -1,22 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012 ARM Ltd.
*/
#ifndef __ASM_DMA_MAPPING_H
#define __ASM_DMA_MAPPING_H
#ifdef __KERNEL__
#include <linux/types.h>
#include <linux/vmalloc.h>
#include <xen/xen.h>
#include <asm/xen/hypervisor.h>
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return NULL;
}
#endif /* __KERNEL__ */
#endif /* __ASM_DMA_MAPPING_H */

1
arch/arm64/mm/dma-mapping.c
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@ -8,6 +8,7 @@
#include <linux/cache.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-iommu.h>
#include <xen/xen.h>
#include <xen/swiotlb-xen.h>
#include <asm/cacheflush.h>