blob: ad8f795d86ca103857b06c425fa69b4bb7c21df3 [file] [log] [blame]
* 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.