| /* | |
| * linux/arch/unicore32/include/asm/cache.h | |
| * | |
| * Code specific to PKUnity SoC and UniCore ISA | |
| * | |
| * Copyright (C) 2001-2010 GUAN Xue-tao | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License version 2 as | |
| * published by the Free Software Foundation. | |
| */ | |
| #ifndef __UNICORE_CACHE_H__ | |
| #define __UNICORE_CACHE_H__ | |
| #define L1_CACHE_SHIFT (5) | |
| #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) | |
| /* | |
| * Memory returned by kmalloc() may be used for DMA, so we must make | |
| * sure that all such allocations are cache aligned. Otherwise, | |
| * unrelated code may cause parts of the buffer to be read into the | |
| * cache before the transfer is done, causing old data to be seen by | |
| * the CPU. | |
| */ | |
| #define ARCH_DMA_MINALIGN L1_CACHE_BYTES | |
| #endif |