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dc2acded38
Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/*
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* Copyright (C) 2012 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ASM_DMA_MAPPING_H
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#define __ASM_DMA_MAPPING_H
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#ifdef __KERNEL__
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#include <linux/types.h>
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#include <linux/vmalloc.h>
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#include <xen/xen.h>
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#include <asm/xen/hypervisor.h>
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static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
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{
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return NULL;
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}
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/*
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* Do not use this function in a driver, it is only provided for
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* arch/arm/mm/xen.c, which is used by arm64 as well.
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*/
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static inline bool is_device_dma_coherent(struct device *dev)
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{
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return dev->dma_coherent;
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}
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#endif /* __KERNEL__ */
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#endif /* __ASM_DMA_MAPPING_H */
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