LXR linux/arch/sh/include/asm/cache.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $
   3 *
   4 * include/asm-sh/cache.h
   5 *
   6 * Copyright 1999 (C) Niibe Yutaka
   7 * Copyright 2002, 2003 (C) Paul Mundt
   8 */
   9#ifndef __ASM_SH_CACHE_H
  10#define __ASM_SH_CACHE_H
  11#ifdef __KERNEL__
  12
  13#include <linux/init.h>
  14#include <cpu/cache.h>
  15
  16#define L1_CACHE_BYTES          (1 << L1_CACHE_SHIFT)
  17
  18#define __read_mostly __attribute__((__section__(".data..read_mostly")))
  19
  20#ifndef __ASSEMBLY__
  21struct cache_info {
  22        unsigned int ways;              /* Number of cache ways */
  23        unsigned int sets;              /* Number of cache sets */
  24        unsigned int linesz;            /* Cache line size (bytes) */
  25
  26        unsigned int way_size;          /* sets * line size */
  27
  28        /*
  29         * way_incr is the address offset for accessing the next way
  30         * in memory mapped cache array ops.
  31         */
  32        unsigned int way_incr;
  33        unsigned int entry_shift;
  34        unsigned int entry_mask;
  35
  36        /*
  37         * Compute a mask which selects the address bits which overlap between
  38         * 1. those used to select the cache set during indexing
  39         * 2. those in the physical page number.
  40         */
  41        unsigned int alias_mask;
  42        unsigned int n_aliases;         /* Number of aliases */
  43
  44        unsigned long flags;
  45};
  46#endif /* __ASSEMBLY__ */
  47#endif /* __KERNEL__ */
  48#endif /* __ASM_SH_CACHE_H */
  49