3  * MMU fault handling support.
72 	vm_fault_t fault;  in ia64_do_page_fault()  local
82 	 * If we're in an interrupt or have no user context, we must not take the fault..  in ia64_do_page_fault()
89 	 * If fault is in region 5 and we are in the kernel, we may already  in ia64_do_page_fault()
145 	 * If for any reason at all we couldn't handle the fault, make  in ia64_do_page_fault()
147 	 * fault.  in ia64_do_page_fault()
149 	fault = handle_mm_fault(vma, address, flags, regs);  in ia64_do_page_fault()
151 	if (fault_signal_pending(fault, regs))  in ia64_do_page_fault()
154 	if (unlikely(fault & VM_FAULT_ERROR)) {  in ia64_do_page_fault()
157 		 * to us that made us unable to handle the page fault  in ia64_do_page_fault()
160 		if (fault & VM_FAULT_OOM) {  in ia64_do_page_fault()
162 		} else if (fault & VM_FAULT_SIGSEGV) {  in ia64_do_page_fault()
164 		} else if (fault & VM_FAULT_SIGBUS) {  in ia64_do_page_fault()
172 		if (fault & VM_FAULT_RETRY) {  in ia64_do_page_fault()
223 		 * This fault was due to a speculative load or lfetch.fault, set the "ed"  in ia64_do_page_fault()
241 		 * This fault was due to a speculative load or lfetch.fault, set the "ed"  in ia64_do_page_fault()
252 	 * stale. If that happens, the non present fault handler already purged the stale  in ia64_do_page_fault()