mirror of
https://github.com/torvalds/linux.git
synced 2024-11-16 17:12:06 +00:00
38 lines
922 B
C
38 lines
922 B
C
|
/*
|
||
|
|
* 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;
|
||
|
|
}
|