text: /* MN10300 cache management registers
   *
   * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   * Written by David Howells (dhowells@redhat.com)
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public Licence
   * as published by the Free Software Foundation; either version
   * 2 of the Licence, or (at your option) any later version.
   */
  
  #ifndef _ASM_CACHE_H
  #define _ASM_CACHE_H
  
  #include <asm/cpu-regs.h>
  #include <proc/cache.h>
  
  #ifndef __ASSEMBLY__
  #define L1_CACHE_DISPARITY	(L1_CACHE_NENTRIES * L1_CACHE_BYTES)
  #else
  #define L1_CACHE_DISPARITY	L1_CACHE_NENTRIES * L1_CACHE_BYTES
  #endif
  
  #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
  
  /* data cache purge registers
   * - read from the register to unconditionally purge that cache line
   * - write address & 0xffffff00 to conditionally purge that cache line
   *   - clear LSB to request invalidation as well
   */
  #define DCACHE_PURGE(WAY, ENTRY) \
  	__SYSREG(0xc8400000 + (WAY) * L1_CACHE_WAYDISP + \
  		 (ENTRY) * L1_CACHE_BYTES, u32)
  
  #define DCACHE_PURGE_WAY0(ENTRY) \
  	__SYSREG(0xc8400000 + 0 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
  #define DCACHE_PURGE_WAY1(ENTRY) \
  	__SYSREG(0xc8400000 + 1 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
  #define DCACHE_PURGE_WAY2(ENTRY) \
  	__SYSREG(0xc8400000 + 2 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
  #define DCACHE_PURGE_WAY3(ENTRY) \
  	__SYSREG(0xc8400000 + 3 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
  
  /* instruction cache access registers */
  #define ICACHE_DATA(WAY, ENTRY, OFF) \
  	__SYSREG(0xc8000000 + (WAY) * L1_CACHE_WAYDISP + (ENTRY) * 0x10 + (OFF) * 4, u32)
  #define ICACHE_TAG(WAY, ENTRY)	 \
  	__SYSREG(0xc8100000 + (WAY) * L1_CACHE_WAYDISP + (ENTRY) * 0x10, u32)
  
  /* instruction cache access registers */
  #define DCACHE_DATA(WAY, ENTRY, OFF) \
  	__SYSREG(0xc8200000 + (WAY) * L1_CACHE_WAYDISP + (ENTRY) * 0x10 + (OFF) * 4, u32)
  #define DCACHE_TAG(WAY, ENTRY)	 \
  	__SYSREG(0xc8300000 + (WAY) * L1_CACHE_WAYDISP + (ENTRY) * 0x10, u32)
  
  #endif /* _ASM_CACHE_H */
  