41 void show_pte(struct mm_struct *mm, unsigned long addr)  in show_pte()  argument
49 	pgd = pgd_offset(mm, addr);  in show_pte()
50 	printk(KERN_ALERT "[%08lx] *pgd=%08lx", addr, pgd_val(*pgd));  in show_pte()
64 		pmd = pmd_offset((pud_t *) pgd, addr);  in show_pte()
80 		pte = pte_offset_map(pmd, addr);  in show_pte()
91 static void __do_kernel_fault(struct mm_struct *mm, unsigned long addr,  in __do_kernel_fault()  argument
106 	       (addr < PAGE_SIZE) ? "NULL pointer dereference" :  in __do_kernel_fault()
107 	       "paging request", addr);  in __do_kernel_fault()
109 	show_pte(mm, addr);  in __do_kernel_fault()
119 static void __do_user_fault(struct task_struct *tsk, unsigned long addr,  in __do_user_fault()  argument
125 	tsk->thread.address = addr;  in __do_user_fault()
131 	si.si_addr = (void __user *)addr;  in __do_user_fault()
135 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs)  in do_bad_area()  argument
145 		__do_user_fault(tsk, addr, fsr, SIGSEGV, SEGV_MAPERR, regs);  in do_bad_area()
147 		__do_kernel_fault(mm, addr, fsr, regs);  in do_bad_area()
170 static int __do_pf(struct mm_struct *mm, unsigned long addr, unsigned int fsr,  in __do_pf()  argument
176 	vma = find_vma(mm, addr);  in __do_pf()
180 	if (unlikely(vma->vm_start > addr))  in __do_pf()
197 	fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, flags);  in __do_pf()
201 	if (vma->vm_flags & VM_GROWSDOWN && !expand_stack(vma, addr))  in __do_pf()
207 static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)  in do_pf()  argument
254 	fault = __do_pf(mm, addr, fsr, flags, tsk);  in do_pf()
318 	__do_user_fault(tsk, addr, fsr, sig, code, regs);  in do_pf()
322 	__do_kernel_fault(mm, addr, fsr, regs);  in do_pf()
343 static int do_ifault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)  in do_ifault()  argument
349 	if (addr < TASK_SIZE)  in do_ifault()
350 		return do_pf(addr, fsr, regs);  in do_ifault()
355 	index = pgd_index(addr);  in do_ifault()
363 	pmd_k = pmd_offset((pud_t *) pgd_k, addr);  in do_ifault()
364 	pmd = pmd_offset((pud_t *) pgd, addr);  in do_ifault()
374 	do_bad_area(addr, fsr, regs);  in do_ifault()
381 static int do_bad(unsigned long addr, unsigned int fsr, struct pt_regs *regs)  in do_bad()  argument
386 static int do_good(unsigned long addr, unsigned int fsr, struct pt_regs *regs)  in do_good()  argument
405 	int (*fn) (unsigned long addr, unsigned int fsr, struct pt_regs *regs);
463 asmlinkage void do_DataAbort(unsigned long addr, unsigned int fsr,  in do_DataAbort()  argument
469 	if (!inf->fn(addr, fsr & ~FSR_LNX_PF, regs))  in do_DataAbort()
473 	       inf->name, fsr, addr);  in do_DataAbort()
478 	info.si_addr = (void __user *)addr;  in do_DataAbort()
482 asmlinkage void do_PrefetchAbort(unsigned long addr,  in do_PrefetchAbort()  argument
488 	if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs))  in do_PrefetchAbort()
492 	       inf->name, ifsr, addr);  in do_PrefetchAbort()
497 	info.si_addr = (void __user *)addr;  in do_PrefetchAbort()