LXR linux/arch/sh/mm/sram.c

   1/*
   2 * SRAM pool for tiny memories not otherwise managed.
   3 *
   4 * Copyright (C) 2010  Paul Mundt
   5 *
   6 * This file is subject to the terms and conditions of the GNU General Public
   7 * License.  See the file "COPYING" in the main directory of this archive
   8 * for more details.
   9 */
  10#include <linux/init.h>
  11#include <linux/kernel.h>
  12#include <linux/errno.h>
  13#include <asm/sram.h>
  14
  15/*
  16 * This provides a standard SRAM pool for tiny memories that can be
  17 * added either by the CPU or the platform code. Typical SRAM sizes
  18 * to be inserted in to the pool will generally be less than the page
  19 * size, with anything more reasonably sized handled as a NUMA memory
  20 * node.
  21 */
  22struct gen_pool *sram_pool;
  23
  24static int __init sram_pool_init(void)
  25{
  26        /*
  27         * This is a global pool, we don't care about node locality.
  28         */
  29        sram_pool = gen_pool_create(1, -1);
  30        if (unlikely(!sram_pool))
  31                return -ENOMEM;
  32
  33        return 0;
  34}
  35core_initcall(sram_pool_init);
  36