patch-1.3.48 linux/arch/mips/kernel/cache.S

Next file: linux/arch/mips/kernel/entry.S
Previous file: linux/arch/mips/kernel/Makefile
Back to the patch index
Back to the overall index

diff -u --recursive --new-file v1.3.47/linux/arch/mips/kernel/cache.S linux/arch/mips/kernel/cache.S
@@ -1,81 +0,0 @@
-/*
- * arch/mips/kernel/cache.S
- *
- * Copyright (C) 1994, 1995 Waldorf Electronics
- * Written by Ralf Baechle
- *
- * Flush instruction/data caches
- *
- * Parameters: a0 - starting address to flush
- *             a1 - size of area to be flushed
- *             a2 - which caches to be flushed
- *
- * FIXME:      - ignores parameters
- *             - doesn't know about second level caches
- *             - only knows how to handle the R4600
- */
-
-#include <asm/mipsconfig.h>
-#include <asm/regdef.h>
-#include <asm/segment.h>
-
-#define PAGE_SIZE	0x1000
-
-#define CACHELINES	512             /* number of cachelines    */
-
-		.set	noreorder
-		.globl	_sys_cacheflush
-		.text
-_sys_cacheflush:
-		/*
-		 * Writeback/invalidate the data cache
-		 */
-		li	t0,KSEG0
-		li	t1,CACHELINES
-1:		cache	1,0(t0)
-		cache	1,32(t0)
-		cache	1,64(t0)
-		cache	1,96(t0)
-		cache	1,128(t0)
-		cache	1,160(t0)
-		cache	1,192(t0)
-		cache	1,224(t0)
-		cache	1,256(t0)
-		cache	1,288(t0)
-		cache	1,320(t0)
-		cache	1,352(t0)
-		cache	1,384(t0)
-		cache	1,416(t0)
-		cache	1,448(t0)
-		cache	1,480(t0)
-		subu    t1,t1,1
-		bnez	t1,1b
-		addiu	t0,t0,512			# delay slot
-
-		/*
-		 * Flush the instruction cache
-		 */
-		lui	t0,0x8000
-		li	t1,CACHELINES
-1:		cache	0,0(t0)	
-		cache	0,32(t0)
-		cache	0,64(t0)
-		cache	0,96(t0)
-		cache	0,128(t0)
-		cache	0,160(t0)
-		cache	0,192(t0)
-		cache	0,224(t0)
-		cache	0,256(t0)
-		cache	0,288(t0)
-		cache	0,320(t0)
-		cache	0,352(t0)
-		cache	0,384(t0)
-		cache	0,416(t0)
-		cache	0,448(t0)
-		cache	0,480(t0)
-		subu	t1,t1,1
-		bnez	t1,1b
-		addiu	t0,t0,512			# delay slot
-
-		j	ra
-		nop

FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov with Sam's (original) version
of this