[MIPS] Remove unused watchpoint support and arch/mips/lib-{32,64}
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>hifive-unleashed-5.1
Atsushi Nemoto
Ralf Baechle
parent
c66df567e5
commit
b63e804459
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@ -633,8 +633,6 @@ CPPFLAGS_vmlinux.lds := \
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head-y := arch/mips/kernel/head.o arch/mips/kernel/init_task.o
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libs-y += arch/mips/lib/
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libs-$(CONFIG_32BIT) += arch/mips/lib-32/
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libs-$(CONFIG_64BIT) += arch/mips/lib-64/
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core-y += arch/mips/kernel/ arch/mips/mm/ arch/mips/math-emu/
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@ -14,7 +14,6 @@
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#include <asm/cpu-features.h>
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#include <asm/mipsregs.h>
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#include <asm/processor.h>
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#include <asm/watch.h>
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unsigned int vced_count, vcei_count;
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@ -39,7 +39,6 @@
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#include <asm/traps.h>
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#include <asm/uaccess.h>
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#include <asm/mmu_context.h>
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#include <asm/watch.h>
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#include <asm/types.h>
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#include <asm/stacktrace.h>
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@ -1,5 +0,0 @@
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#
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# Makefile for MIPS-specific library files..
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#
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lib-y += watch.o
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@ -1,60 +0,0 @@
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Kernel debug stuff to use the Watch registers.
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* Useful to find stack overflows, dangling pointers etc.
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*
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* Copyright (C) 1995, 1996, 1999 by Ralf Baechle
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*/
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#include <asm/asm.h>
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#include <asm/mipsregs.h>
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#include <asm/regdef.h>
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.set noreorder
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/*
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* Parameter: a0 - logic address to watch
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* Currently only KSEG0 addresses are allowed!
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* a1 - set bit #1 to trap on load references
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* bit #0 to trap on store references
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* Results : none
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*/
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LEAF(__watch_set)
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li t0, 0x80000000
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subu a0, t0
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ori a0, 7
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xori a0, 7
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or a0, a1
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mtc0 a0, CP0_WATCHLO
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sw a0, watch_savelo
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jr ra
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mtc0 zero, CP0_WATCHHI
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END(__watch_set)
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/*
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* Parameter: none
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* Results : none
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*/
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LEAF(__watch_clear)
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jr ra
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mtc0 zero, CP0_WATCHLO
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END(__watch_clear)
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/*
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* Parameter: none
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* Results : none
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*/
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LEAF(__watch_reenable)
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lw t0, watch_savelo
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jr ra
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mtc0 t0, CP0_WATCHLO
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END(__watch_reenable)
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/*
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* Saved value of the c0_watchlo register for watch_reenable()
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*/
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.data
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watch_savelo: .word 0
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.text
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@ -1,5 +0,0 @@
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#
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# Makefile for MIPS-specific library files..
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#
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lib-y += watch.o
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@ -1,57 +0,0 @@
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Kernel debug stuff to use the Watch registers.
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* Useful to find stack overflows, dangling pointers etc.
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*
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* Copyright (C) 1995, 1996, 1999, 2001 by Ralf Baechle
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*/
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#include <asm/asm.h>
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#include <asm/mipsregs.h>
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#include <asm/regdef.h>
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.set noreorder
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/*
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* Parameter: a0 - physical address to watch
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* a1 - set bit #1 to trap on load references
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* bit #0 to trap on store references
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* Results : none
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*/
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LEAF(__watch_set)
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ori a0, 7
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xori a0, 7
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or a0, a1
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mtc0 a0, CP0_WATCHLO
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sd a0, watch_savelo
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dsrl32 a0, a0, 0
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jr ra
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mtc0 zero, CP0_WATCHHI
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END(__watch_set)
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/*
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* Parameter: none
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* Results : none
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*/
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LEAF(__watch_clear)
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jr ra
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mtc0 zero, CP0_WATCHLO
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END(__watch_clear)
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/*
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* Parameter: none
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* Results : none
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*/
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LEAF(__watch_reenable)
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ld t0, watch_savelo
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jr ra
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mtc0 t0, CP0_WATCHLO
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END(__watch_reenable)
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/*
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* Saved value of the c0_watchlo register for watch_reenable()
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*/
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.local watch_savelo
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.comm watch_savelo, 8, 8
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@ -1,35 +0,0 @@
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1996, 1997, 1998, 2000, 2001 by Ralf Baechle
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*/
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#ifndef _ASM_WATCH_H
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#define _ASM_WATCH_H
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#include <linux/linkage.h>
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/*
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* Types of reference for watch_set()
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*/
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enum wref_type {
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wr_save = 1,
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wr_load = 2
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};
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extern asmlinkage void __watch_set(unsigned long addr, enum wref_type ref);
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extern asmlinkage void __watch_clear(void);
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extern asmlinkage void __watch_reenable(void);
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#define watch_set(addr, ref) \
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if (cpu_has_watch) \
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__watch_set(addr, ref)
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#define watch_clear() \
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if (cpu_has_watch) \
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__watch_clear()
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#define watch_reenable() \
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if (cpu_has_watch) \
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__watch_reenable()
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#endif /* _ASM_WATCH_H */
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