mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 04:16:43 +07:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
/*
|
|
* arch/sh/mm/fault-nommu.c
|
|
*
|
|
* Copyright (C) 2002 Paul Mundt
|
|
*
|
|
* Based on linux/arch/sh/mm/fault.c:
|
|
* Copyright (C) 1999 Niibe Yutaka
|
|
*
|
|
* Released under the terms of the GNU GPL v2.0.
|
|
*/
|
|
|
|
#include <linux/signal.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/string.h>
|
|
#include <linux/types.h>
|
|
#include <linux/ptrace.h>
|
|
#include <linux/mman.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/smp.h>
|
|
#include <linux/smp_lock.h>
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <asm/system.h>
|
|
#include <asm/io.h>
|
|
#include <asm/uaccess.h>
|
|
#include <asm/pgalloc.h>
|
|
#include <asm/mmu_context.h>
|
|
#include <asm/cacheflush.h>
|
|
|
|
#if defined(CONFIG_SH_KGDB)
|
|
#include <asm/kgdb.h>
|
|
#endif
|
|
|
|
extern void die(const char *,struct pt_regs *,long);
|
|
|
|
/*
|
|
* This routine handles page faults. It determines the address,
|
|
* and the problem, and then passes it off to one of the appropriate
|
|
* routines.
|
|
*/
|
|
asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
|
|
unsigned long address)
|
|
{
|
|
#if defined(CONFIG_SH_KGDB)
|
|
if (kgdb_nofault && kgdb_bus_err_hook)
|
|
kgdb_bus_err_hook();
|
|
#endif
|
|
|
|
/*
|
|
* Oops. The kernel tried to access some bad page. We'll have to
|
|
* terminate things with extreme prejudice.
|
|
*
|
|
*/
|
|
if (address < PAGE_SIZE) {
|
|
printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
|
|
} else {
|
|
printk(KERN_ALERT "Unable to handle kernel paging request");
|
|
}
|
|
|
|
printk(" at virtual address %08lx\n", address);
|
|
printk(KERN_ALERT "pc = %08lx\n", regs->pc);
|
|
|
|
die("Oops", regs, writeaccess);
|
|
do_exit(SIGKILL);
|
|
}
|
|
|
|
asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
|
|
unsigned long address)
|
|
{
|
|
#if defined(CONFIG_SH_KGDB)
|
|
if (kgdb_nofault && kgdb_bus_err_hook)
|
|
kgdb_bus_err_hook();
|
|
#endif
|
|
|
|
if (address >= TASK_SIZE)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|