u-boot/arch/mips/include/asm/cache.h

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/*
* Copyright (c) 2011 The Chromium OS Authors.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __MIPS_CACHE_H__
#define __MIPS_CACHE_H__
/*
* The maximum L1 data cache line size on MIPS seems to be 128 bytes. We use
* that as a default for aligning DMA buffers unless the board config has
* specified another cache line size.
*/
#ifdef CONFIG_SYS_CACHELINE_SIZE
#define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE
#else
#define ARCH_DMA_MINALIGN 128
#endif
#endif /* __MIPS_CACHE_H__ */