37  * parisc_acctyp(unsigned int inst) --
38  *    Given a PA-RISC memory access instruction, determine if the
79 			 * older PA-RISC platforms.  The case where a block  in parisc_acctyp()
87 			 *   01  Graphics flush write  (IO space -> VM)  in parisc_acctyp()
88 			 *   10  Graphics flush read   (VM -> IO space)  in parisc_acctyp()
89 			 *   11  Graphics flush read/write (VM <-> IO space)  in parisc_acctyp()
104 			 *   Data TLB miss fault/data page fault  in parisc_acctyp()
125  * not, but I want it committed to CVS so I don't lose it :-)
128 				if (tree->vm_start > addr) {
129 					tree = tree->vm_avl_left;
132 					if (prev->vm_next == NULL)
134 					if (prev->vm_next->vm_start > addr)
136 					tree = tree->vm_avl_right;
145 	fix = search_exception_tables(regs->iaoq[0]);  in fixup_exception()
149 		 * ASM_EXCEPTIONTABLE_ENTRY_EFAULT() sets the least-significant  in fixup_exception()
151 		 * that %r8 should be loaded with -EFAULT to report a userspace  in fixup_exception()
154 		if (fix->fixup & 1) {  in fixup_exception()
155 			regs->gr[8] = -EFAULT;  in fixup_exception()
158 			if (parisc_acctyp(0, regs->iir) == VM_READ) {  in fixup_exception()
159 				int treg = regs->iir & 0x1f;  in fixup_exception()
161 				regs->gr[treg] = 0;  in fixup_exception()
165 		regs->iaoq[0] = (unsigned long)&fix->fixup + fix->fixup;  in fixup_exception()
166 		regs->iaoq[0] &= ~3;  in fixup_exception()
174 		regs->iaoq[1] = regs->iaoq[0] + 4;  in fixup_exception()
175 		regs->gr[0] &= ~PSW_B; /* IPSW in gr[0] */  in fixup_exception()
187  * "PA-RISC 1.1 Architecture and Instruction Set Reference Manual"
193 	[1] "High-priority machine check (HPMC)",
196 	[5] "Low-priority machine check",
197 	[6] "Instruction TLB miss fault",
206 	[15] "Data TLB miss fault",
207 	[16] "Non-access ITLB miss fault",
208 	[17] "Non-access DTLB miss fault",
211 	[20] "TLB dirty bit trap",
247 	    tsk->comm, code, address);  in show_signal_msg()
248 	print_vma_addr(KERN_CONT " in ", regs->iaoq[0]);  in show_signal_msg()
255 			vma->vm_start, vma->vm_end);  in show_signal_msg()
274 	mm = tsk->mm;  in do_page_fault()
282 	acc_type = parisc_acctyp(code, regs->iir);  in do_page_fault()
289 	if (!vma || address < vma->vm_start)  in do_page_fault()
298 	if ((vma->vm_flags & acc_type) != acc_type)  in do_page_fault()
356 		case 15:	/* Data TLB miss fault/Data page fault */  in do_page_fault()
359 			    address < vma->vm_start || address >= vma->vm_end) {  in do_page_fault()
366 			if ((vma->vm_flags & acc_type) != acc_type) {  in do_page_fault()
374 		case 17:	/* NA data TLB miss / page fault */  in do_page_fault()
375 		case 18:	/* Unaligned access - PCXS only */  in do_page_fault()
379 		case 16:	/* Non-access instruction TLB miss fault */  in do_page_fault()
390 	"MCE: Killing %s:%d due to hardware memory corruption fault at %08lx\n",  in do_page_fault()
391 			tsk->comm, tsk->pid, address);  in do_page_fault()