blob: 2174fe7bac9ac352a1bd72d12972d4993c8bf882 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/* 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 */
|
