diff options
Diffstat (limited to 'arch/m32r/mm/fault-nommu.c')
| -rw-r--r-- | arch/m32r/mm/fault-nommu.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/arch/m32r/mm/fault-nommu.c b/arch/m32r/mm/fault-nommu.c deleted file mode 100644 index 240e00067d5e..000000000000 --- a/arch/m32r/mm/fault-nommu.c +++ /dev/null @@ -1,134 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/arch/m32r/mm/fault.c - * - * Copyright (c) 2001, 2002 Hitoshi Yamamoto, and H. Kondo - * - * Some code taken from i386 version. - * Copyright (C) 1995 Linus Torvalds - */ - -#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/interrupt.h> -#include <linux/init.h> -#include <linux/vt_kern.h> /* For unblank_screen() */ - -#include <asm/m32r.h> -#include <linux/uaccess.h> -#include <asm/pgalloc.h> -#include <asm/pgtable.h> -#include <asm/hardirq.h> -#include <asm/mmu_context.h> - -extern void die(const char *, struct pt_regs *, long); - -#ifndef CONFIG_SMP -asmlinkage unsigned int tlb_entry_i_dat; -asmlinkage unsigned int tlb_entry_d_dat; -#define tlb_entry_i tlb_entry_i_dat -#define tlb_entry_d tlb_entry_d_dat -#else -unsigned int tlb_entry_i_dat[NR_CPUS]; -unsigned int tlb_entry_d_dat[NR_CPUS]; -#define tlb_entry_i tlb_entry_i_dat[smp_processor_id()] -#define tlb_entry_d tlb_entry_d_dat[smp_processor_id()] -#endif - -void do_BUG(const char *file, int line) -{ - bust_spinlocks(1); - printk("kernel BUG at %s:%d!\n", file, line); -} - -/*======================================================================* - * do_page_fault() - *======================================================================* - * This routine handles page faults. It determines the address, - * and the problem, and then passes it off to one of the appropriate - * routines. - * - * ARGUMENT: - * regs : M32R SP reg. - * error_code : See below - * address : M32R MMU MDEVA reg. (Operand ACE) - * : M32R BPC reg. (Instruction ACE) - * - * error_code : - * bit 0 == 0 means no page found, 1 means protection fault - * bit 1 == 0 means read, 1 means write - * bit 2 == 0 means kernel, 1 means user-mode - *======================================================================*/ -asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code, - unsigned long address) -{ - -/* - * Oops. The kernel tried to access some bad page. We'll have to - * terminate things with extreme prejudice. - */ - - bust_spinlocks(1); - - 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(" printing bpc:\n"); - printk(KERN_ALERT "bpc = %08lx\n", regs->bpc); - - die("Oops", regs, error_code); - bust_spinlocks(0); - do_exit(SIGKILL); -} - -/*======================================================================* - * update_mmu_cache() - *======================================================================*/ -void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, - pte_t *ptep) -{ - BUG(); -} - -/*======================================================================* - * flush_tlb_page() : flushes one page - *======================================================================*/ -void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) -{ - BUG(); -} - -/*======================================================================* - * flush_tlb_range() : flushes a range of pages - *======================================================================*/ -void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) -{ - BUG(); -} - -/*======================================================================* - * flush_tlb_mm() : flushes the specified mm context TLB's - *======================================================================*/ -void local_flush_tlb_mm(struct mm_struct *mm) -{ - BUG(); -} - -/*======================================================================* - * flush_tlb_all() : flushes all processes TLBs - *======================================================================*/ -void local_flush_tlb_all(void) -{ - BUG(); -} |