Commit b63e8044 authored by Atsushi Nemoto's avatar Atsushi Nemoto Committed by Ralf Baechle

[MIPS] Remove unused watchpoint support and arch/mips/lib-{32,64}

Signed-off-by: default avatarAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent c66df567
......@@ -633,8 +633,6 @@ CPPFLAGS_vmlinux.lds := \
head-y := arch/mips/kernel/head.o arch/mips/kernel/init_task.o
libs-y += arch/mips/lib/
libs-$(CONFIG_32BIT) += arch/mips/lib-32/
libs-$(CONFIG_64BIT) += arch/mips/lib-64/
core-y += arch/mips/kernel/ arch/mips/mm/ arch/mips/math-emu/
......
......@@ -14,7 +14,6 @@
#include <asm/cpu-features.h>
#include <asm/mipsregs.h>
#include <asm/processor.h>
#include <asm/watch.h>
unsigned int vced_count, vcei_count;
......
......@@ -39,7 +39,6 @@
#include <asm/traps.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
#include <asm/watch.h>
#include <asm/types.h>
#include <asm/stacktrace.h>
......
#
# Makefile for MIPS-specific library files..
#
lib-y += watch.o
/*
* 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.
*
* Kernel debug stuff to use the Watch registers.
* Useful to find stack overflows, dangling pointers etc.
*
* Copyright (C) 1995, 1996, 1999 by Ralf Baechle
*/
#include <asm/asm.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
.set noreorder
/*
* Parameter: a0 - logic address to watch
* Currently only KSEG0 addresses are allowed!
* a1 - set bit #1 to trap on load references
* bit #0 to trap on store references
* Results : none
*/
LEAF(__watch_set)
li t0, 0x80000000
subu a0, t0
ori a0, 7
xori a0, 7
or a0, a1
mtc0 a0, CP0_WATCHLO
sw a0, watch_savelo
jr ra
mtc0 zero, CP0_WATCHHI
END(__watch_set)
/*
* Parameter: none
* Results : none
*/
LEAF(__watch_clear)
jr ra
mtc0 zero, CP0_WATCHLO
END(__watch_clear)
/*
* Parameter: none
* Results : none
*/
LEAF(__watch_reenable)
lw t0, watch_savelo
jr ra
mtc0 t0, CP0_WATCHLO
END(__watch_reenable)
/*
* Saved value of the c0_watchlo register for watch_reenable()
*/
.data
watch_savelo: .word 0
.text
#
# Makefile for MIPS-specific library files..
#
lib-y += watch.o
/*
* 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.
*
* Kernel debug stuff to use the Watch registers.
* Useful to find stack overflows, dangling pointers etc.
*
* Copyright (C) 1995, 1996, 1999, 2001 by Ralf Baechle
*/
#include <asm/asm.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
.set noreorder
/*
* Parameter: a0 - physical address to watch
* a1 - set bit #1 to trap on load references
* bit #0 to trap on store references
* Results : none
*/
LEAF(__watch_set)
ori a0, 7
xori a0, 7
or a0, a1
mtc0 a0, CP0_WATCHLO
sd a0, watch_savelo
dsrl32 a0, a0, 0
jr ra
mtc0 zero, CP0_WATCHHI
END(__watch_set)
/*
* Parameter: none
* Results : none
*/
LEAF(__watch_clear)
jr ra
mtc0 zero, CP0_WATCHLO
END(__watch_clear)
/*
* Parameter: none
* Results : none
*/
LEAF(__watch_reenable)
ld t0, watch_savelo
jr ra
mtc0 t0, CP0_WATCHLO
END(__watch_reenable)
/*
* Saved value of the c0_watchlo register for watch_reenable()
*/
.local watch_savelo
.comm watch_savelo, 8, 8
/*
* 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) 1996, 1997, 1998, 2000, 2001 by Ralf Baechle
*/
#ifndef _ASM_WATCH_H
#define _ASM_WATCH_H
#include <linux/linkage.h>
/*
* Types of reference for watch_set()
*/
enum wref_type {
wr_save = 1,
wr_load = 2
};
extern asmlinkage void __watch_set(unsigned long addr, enum wref_type ref);
extern asmlinkage void __watch_clear(void);
extern asmlinkage void __watch_reenable(void);
#define watch_set(addr, ref) \
if (cpu_has_watch) \
__watch_set(addr, ref)
#define watch_clear() \
if (cpu_has_watch) \
__watch_clear()
#define watch_reenable() \
if (cpu_has_watch) \
__watch_reenable()
#endif /* _ASM_WATCH_H */
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