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

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2017 Andes Technology Corporation
 * Rick Chen, Andes Technology Corporation <rick@andestech.com>
 */

#ifndef _ASM_RISCV_CACHE_H
#define _ASM_RISCV_CACHE_H

/*
 * The current upper bound for RISCV L1 data cache line sizes is 32 bytes.
 * We use that value for aligning DMA buffers unless the board config has
 * specified an alternate cache line size.
 */
#ifdef CONFIG_SYS_CACHELINE_SIZE
#define ARCH_DMA_MINALIGN	CONFIG_SYS_CACHELINE_SIZE
#else
#define ARCH_DMA_MINALIGN	32
#endif

#endif /* _ASM_RISCV_CACHE_H */