Commit c28c07fe authored by Heiko Carstens's avatar Heiko Carstens
Browse files

s390/mm: move pfault code to own C file 



The pfault code has nothing to do with regular fault handling.

Therefore move it to an own C file. Also add an own pfault header
file. This way changes to setup.h don't cause a recompile of the
pfault code and vice versa.

Reviewed-by: default avatarSven Schnelle <svens@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 8b46451c

arch/s390/include/asm/pfault.h

0 → 100644
+24 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 *    Copyright IBM Corp. 1999, 2023

 */

#ifndef _ASM_S390_PFAULT_H

#define _ASM_S390_PFAULT_H



int __pfault_init(void);

void __pfault_fini(void);



static inline int pfault_init(void)

{

	if (IS_ENABLED(CONFIG_PFAULT))

		return __pfault_init();

	return -1;

}



static inline void pfault_fini(void)

{

	if (IS_ENABLED(CONFIG_PFAULT))

		__pfault_fini();

}



#endif /* _ASM_S390_PFAULT_H */

arch/s390/include/asm/setup.h

+0 −8
Original line number Diff line number Diff line
@@ -118,14 +118,6 @@ extern unsigned int console_irq; 
#define SET_CONSOLE_VT220	do { console_mode = 4; } while (0)

#define SET_CONSOLE_HVC		do { console_mode = 5; } while (0)



#ifdef CONFIG_PFAULT

extern int pfault_init(void);

extern void pfault_fini(void);

#else /* CONFIG_PFAULT */

#define pfault_init()		({-1;})

#define pfault_fini()		do { } while (0)

#endif /* CONFIG_PFAULT */



#ifdef CONFIG_VMCP

void vmcp_cma_reserve(void);

#else

arch/s390/kernel/machine_kexec.c

+1 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <linux/reboot.h>

#include <linux/ftrace.h>

#include <linux/debug_locks.h>

#include <asm/pfault.h>

#include <asm/cio.h>

#include <asm/setup.h>

#include <asm/smp.h>

arch/s390/kernel/smp.c

+1 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ 
#include <linux/crash_dump.h>

#include <linux/kprobes.h>

#include <asm/asm-offsets.h>

#include <asm/pfault.h>

#include <asm/diag.h>

#include <asm/switch_to.h>

#include <asm/facility.h>

arch/s390/mm/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -10,3 +10,4 @@ obj-$(CONFIG_CMM) += cmm.o 
obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o

obj-$(CONFIG_PTDUMP_CORE)	+= dump_pagetables.o

obj-$(CONFIG_PGSTE)		+= gmap.o

obj-$(CONFIG_PFAULT)		+= pfault.o