1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/* $Id: pcimt_scache.c,v 1.4 1999/01/04 16:03:59 ralf Exp $
*
* arch/mips/sni/pcimt_scache.c
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 1997, 1998 by Ralf Baechle
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <asm/bcache.h>
#include <asm/sni.h>
#define cacheconf (*(volatile unsigned int *)PCIMT_CACHECONF)
#define invspace (*(volatile unsigned int *)PCIMT_INVSPACE)
void __init sni_pcimt_sc_init(void)
{
unsigned int scsiz, sc_size;
scsiz = cacheconf & 7;
if (scsiz == 0) {
printk("Second level cache is deactived.\n");
return;
}
if (scsiz >= 6) {
printk("Invalid second level cache size configured, "
"deactivating second level cache.\n");
cacheconf = 0;
return;
}
sc_size = 128 << scsiz;
printk("%dkb second level cache detected, deactivating.\n", sc_size);
cacheconf = 0;
}
|
