linux/include/asm-xtensa/cache.h
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   1/*
   2 * include/asm-xtensa/cache.h
   3 *
   4 * This file is subject to the terms and conditions of the GNU General Public
   5 * License.  See the file "COPYING" in the main directory of this archive
   6 * for more details.
   7 *
   8 * (C) 2001 - 2005 Tensilica Inc.
   9 */
  10
  11#ifndef _XTENSA_CACHE_H
  12#define _XTENSA_CACHE_H
  13
  14#include <asm/variant/core.h>
  15
  16#define L1_CACHE_SHIFT  XCHAL_DCACHE_LINEWIDTH
  17#define L1_CACHE_BYTES  XCHAL_DCACHE_LINESIZE
  18#define SMP_CACHE_BYTES L1_CACHE_BYTES
  19
  20#define DCACHE_WAY_SIZE (XCHAL_DCACHE_SIZE/XCHAL_DCACHE_WAYS)
  21#define ICACHE_WAY_SIZE (XCHAL_ICACHE_SIZE/XCHAL_ICACHE_WAYS)
  22#define DCACHE_WAY_SHIFT (XCHAL_DCACHE_SETWIDTH + XCHAL_DCACHE_LINEWIDTH)
  23#define ICACHE_WAY_SHIFT (XCHAL_ICACHE_SETWIDTH + XCHAL_ICACHE_LINEWIDTH)
  24
  25/* Maximum cache size per way. */
  26#if DCACHE_WAY_SIZE >= ICACHE_WAY_SIZE
  27# define CACHE_WAY_SIZE DCACHE_WAY_SIZE
  28#else
  29# define CACHE_WAY_SIZE ICACHE_WAY_SIZE
  30#endif
  31
  32
  33#endif  /* _XTENSA_CACHE_H */
  34