59 void show_registers(struct pt_regs *regs)  in show_registers()  argument
65 	esp = (unsigned long)(regs->sp);  in show_registers()
66 	if (user_mode(regs))  in show_registers()
71 	       smp_processor_id(), regs->pc, regs->sr, regs->sp);  in show_registers()
73 	       0L, regs->gpr[1], regs->gpr[2], regs->gpr[3]);  in show_registers()
75 	       regs->gpr[4], regs->gpr[5], regs->gpr[6], regs->gpr[7]);  in show_registers()
77 	       regs->gpr[8], regs->gpr[9], regs->gpr[10], regs->gpr[11]);  in show_registers()
79 	       regs->gpr[12], regs->gpr[13], regs->gpr[14], regs->gpr[15]);  in show_registers()
81 	       regs->gpr[16], regs->gpr[17], regs->gpr[18], regs->gpr[19]);  in show_registers()
83 	       regs->gpr[20], regs->gpr[21], regs->gpr[22], regs->gpr[23]);  in show_registers()
85 	       regs->gpr[24], regs->gpr[25], regs->gpr[26], regs->gpr[27]);  in show_registers()
87 	       regs->gpr[28], regs->gpr[29], regs->gpr[30], regs->gpr[31]);  in show_registers()
89 	       regs->gpr[11], regs->orig_gpr11);  in show_registers()
103 		if (regs->pc < PAGE_OFFSET)  in show_registers()
108 			if (__get_user(c, &((unsigned char *)regs->pc)[i])) {  in show_registers()
123 void nommu_dump_state(struct pt_regs *regs,  in nommu_dump_state()  argument
127 	unsigned long addr, stack = regs->sp;  in nommu_dump_state()
133 	       0, regs->pc, regs->sr, regs->sp);  in nommu_dump_state()
135 	       0L, regs->gpr[1], regs->gpr[2], regs->gpr[3]);  in nommu_dump_state()
137 	       regs->gpr[4], regs->gpr[5], regs->gpr[6], regs->gpr[7]);  in nommu_dump_state()
139 	       regs->gpr[8], regs->gpr[9], regs->gpr[10], regs->gpr[11]);  in nommu_dump_state()
141 	       regs->gpr[12], regs->gpr[13], regs->gpr[14], regs->gpr[15]);  in nommu_dump_state()
143 	       regs->gpr[16], regs->gpr[17], regs->gpr[18], regs->gpr[19]);  in nommu_dump_state()
145 	       regs->gpr[20], regs->gpr[21], regs->gpr[22], regs->gpr[23]);  in nommu_dump_state()
147 	       regs->gpr[24], regs->gpr[25], regs->gpr[26], regs->gpr[27]);  in nommu_dump_state()
149 	       regs->gpr[28], regs->gpr[29], regs->gpr[30], regs->gpr[31]);  in nommu_dump_state()
151 	       regs->gpr[11], regs->orig_gpr11);  in nommu_dump_state()
189 		c = ((unsigned char *)(__pa(regs->pc)))[i];  in nommu_dump_state()
200 void die(const char *str, struct pt_regs *regs, long err)  in die()  argument
205 	show_registers(regs);  in die()
219 void die_if_kernel(const char *str, struct pt_regs *regs, long err)  in die_if_kernel()  argument
221 	if (user_mode(regs))  in die_if_kernel()
224 	die(str, regs, err);  in die_if_kernel()
227 void unhandled_exception(struct pt_regs *regs, int ea, int vector)  in unhandled_exception()  argument
231 	die("Oops", regs, 9);  in unhandled_exception()
239 asmlinkage void do_trap(struct pt_regs *regs, unsigned long address)  in do_trap()  argument
243 	regs->pc += 4;  in do_trap()
246 asmlinkage void do_unaligned_access(struct pt_regs *regs, unsigned long address)  in do_unaligned_access()  argument
248 	if (user_mode(regs)) {  in do_unaligned_access()
253 		show_registers(regs);  in do_unaligned_access()
254 		die("Die:", regs, address);  in do_unaligned_access()
259 asmlinkage void do_bus_fault(struct pt_regs *regs, unsigned long address)  in do_bus_fault()  argument
261 	if (user_mode(regs)) {  in do_bus_fault()
266 		show_registers(regs);  in do_bus_fault()
267 		die("Die:", regs, address);  in do_bus_fault()
271 static inline int in_delay_slot(struct pt_regs *regs)  in in_delay_slot()  argument
277 	insn = *((unsigned int *)regs->pc);  in in_delay_slot()
295 static inline void adjust_pc(struct pt_regs *regs, unsigned long address)  in adjust_pc()  argument
300 	if (unlikely(in_delay_slot(regs))) {  in adjust_pc()
302 		jmp = *((unsigned int *)regs->pc);  in adjust_pc()
310 			regs->pc += displacement;  in adjust_pc()
313 			regs->pc += displacement;  in adjust_pc()
314 			regs->gpr[9] = regs->pc + 8;  in adjust_pc()
317 			if (regs->sr & SPR_SR_F)  in adjust_pc()
318 				regs->pc += 8;  in adjust_pc()
320 				regs->pc += displacement;  in adjust_pc()
323 			if (regs->sr & SPR_SR_F)  in adjust_pc()
324 				regs->pc += displacement;  in adjust_pc()
326 				regs->pc += 8;  in adjust_pc()
329 			regs->pc = regs->gpr[rb];  in adjust_pc()
332 			regs->pc = regs->gpr[rb];  in adjust_pc()
333 			regs->gpr[9] = regs->pc + 8;  in adjust_pc()
339 		regs->pc += 4;  in adjust_pc()
343 static inline void simulate_lwa(struct pt_regs *regs, unsigned long address,  in simulate_lwa()  argument
353 	orig_pc = regs->pc;  in simulate_lwa()
354 	adjust_pc(regs, address);  in simulate_lwa()
359 	lwa_addr = (unsigned long __user *)(regs->gpr[ra] + imm);  in simulate_lwa()
362 		do_unaligned_access(regs, address);  in simulate_lwa()
367 		if (user_mode(regs)) {  in simulate_lwa()
373 			regs->pc = entry->fixup;  in simulate_lwa()
382 	regs->gpr[rd] = value;  in simulate_lwa()
385 static inline void simulate_swa(struct pt_regs *regs, unsigned long address,  in simulate_swa()  argument
395 	orig_pc = regs->pc;  in simulate_swa()
396 	adjust_pc(regs, address);  in simulate_swa()
401 	vaddr = (unsigned long __user *)(regs->gpr[ra] + imm);  in simulate_swa()
404 		regs->sr &= ~SPR_SR_F;  in simulate_swa()
409 		do_unaligned_access(regs, address);  in simulate_swa()
413 	if (put_user(regs->gpr[rb], vaddr)) {  in simulate_swa()
414 		if (user_mode(regs)) {  in simulate_swa()
420 			regs->pc = entry->fixup;  in simulate_swa()
425 		*((unsigned long *)vaddr) = regs->gpr[rb];  in simulate_swa()
429 	regs->sr |= SPR_SR_F;  in simulate_swa()
435 asmlinkage void do_illegal_instruction(struct pt_regs *regs,  in do_illegal_instruction()  argument
445 		simulate_lwa(regs, address, insn);  in do_illegal_instruction()
449 		simulate_swa(regs, address, insn);  in do_illegal_instruction()
456 	if (user_mode(regs)) {  in do_illegal_instruction()
462 		show_registers(regs);  in do_illegal_instruction()
463 		die("Die:", regs, address);  in do_illegal_instruction()