xref: /openbmc/linux/arch/sh/mm/sram.c (revision f03c4866)
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  */
22 struct gen_pool *sram_pool;
23 
sram_pool_init(void)24 static 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 }
35 core_initcall(sram_pool_init);
36