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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2017 Chen Liqin <liqin.chen@sunplusct.com>
* Copyright (C) 2012 Regents of the University of California
*/
#ifndef _ASM_RISCV_CACHE_H
#define _ASM_RISCV_CACHE_H
#define L1_CACHE_SHIFT 6
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
#ifdef CONFIG_RISCV_DMA_NONCOHERENT
#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
#define ARCH_KMALLOC_MINALIGN (8)
#endif
/*
* RISC-V requires the stack pointer to be 16-byte aligned, so ensure that
* the flat loader aligns it accordingly.
*/
#ifndef CONFIG_MMU
#define ARCH_SLAB_MINALIGN 16
#endif
#ifndef __ASSEMBLY__
#ifdef CONFIG_RISCV_DMA_NONCOHERENT
extern int dma_cache_alignment;
#define dma_get_cache_alignment dma_get_cache_alignment
static inline int dma_get_cache_alignment(void)
{
return dma_cache_alignment;
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* _ASM_RISCV_CACHE_H */