linux-stable/arch/mips/loongson2ef/fuloong-2e/dma.c
Christoph Hellwig 5ceda74093 dma-direct: rename and cleanup __phys_to_dma
The __phys_to_dma vs phys_to_dma distinction isn't exactly obvious.  Try
to improve the situation by renaming __phys_to_dma to
phys_to_dma_unencryped, and not forcing architectures that want to
override phys_to_dma to actually provide __phys_to_dma.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
2020-09-11 09:14:43 +02:00

12 lines
262 B
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/dma-direct.h>
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
return paddr | 0x80000000;
}
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr)
{
return dma_addr & 0x7fffffff;
}