71 void show_registers(struct pt_regs *regs)  in show_registers()  argument
77 	esp = (unsigned long)(regs->sp);  in show_registers()
78 	if (user_mode(regs))  in show_registers()
83 	       smp_processor_id(), regs->pc, regs->sr, regs->sp);  in show_registers()
85 	       0L, regs->gpr[1], regs->gpr[2], regs->gpr[3]);  in show_registers()
87 	       regs->gpr[4], regs->gpr[5], regs->gpr[6], regs->gpr[7]);  in show_registers()
89 	       regs->gpr[8], regs->gpr[9], regs->gpr[10], regs->gpr[11]);  in show_registers()
91 	       regs->gpr[12], regs->gpr[13], regs->gpr[14], regs->gpr[15]);  in show_registers()
93 	       regs->gpr[16], regs->gpr[17], regs->gpr[18], regs->gpr[19]);  in show_registers()
95 	       regs->gpr[20], regs->gpr[21], regs->gpr[22], regs->gpr[23]);  in show_registers()
97 	       regs->gpr[24], regs->gpr[25], regs->gpr[26], regs->gpr[27]);  in show_registers()
99 	       regs->gpr[28], regs->gpr[29], regs->gpr[30], regs->gpr[31]);  in show_registers()
101 	       regs->gpr[11], regs->orig_gpr11);  in show_registers()
115 		if (regs->pc < PAGE_OFFSET)  in show_registers()
120 			if (__get_user(c, &((unsigned char *)regs->pc)[i])) {  in show_registers()
135 void nommu_dump_state(struct pt_regs *regs,  in nommu_dump_state()  argument
139 	unsigned long addr, stack = regs->sp;  in nommu_dump_state()
145 	       0, regs->pc, regs->sr, regs->sp);  in nommu_dump_state()
147 	       0L, regs->gpr[1], regs->gpr[2], regs->gpr[3]);  in nommu_dump_state()
149 	       regs->gpr[4], regs->gpr[5], regs->gpr[6], regs->gpr[7]);  in nommu_dump_state()
151 	       regs->gpr[8], regs->gpr[9], regs->gpr[10], regs->gpr[11]);  in nommu_dump_state()
153 	       regs->gpr[12], regs->gpr[13], regs->gpr[14], regs->gpr[15]);  in nommu_dump_state()
155 	       regs->gpr[16], regs->gpr[17], regs->gpr[18], regs->gpr[19]);  in nommu_dump_state()
157 	       regs->gpr[20], regs->gpr[21], regs->gpr[22], regs->gpr[23]);  in nommu_dump_state()
159 	       regs->gpr[24], regs->gpr[25], regs->gpr[26], regs->gpr[27]);  in nommu_dump_state()
161 	       regs->gpr[28], regs->gpr[29], regs->gpr[30], regs->gpr[31]);  in nommu_dump_state()
163 	       regs->gpr[11], regs->orig_gpr11);  in nommu_dump_state()
201 		c = ((unsigned char *)(__pa(regs->pc)))[i];  in nommu_dump_state()
212 void die(const char *str, struct pt_regs *regs, long err)  in die()  argument
217 	show_registers(regs);  in die()
231 void die_if_kernel(const char *str, struct pt_regs *regs, long err)  in die_if_kernel()  argument
233 	if (user_mode(regs))  in die_if_kernel()
236 	die(str, regs, err);  in die_if_kernel()
239 void unhandled_exception(struct pt_regs *regs, int ea, int vector)  in unhandled_exception()  argument
243 	die("Oops", regs, 9);  in unhandled_exception()
251 asmlinkage void do_trap(struct pt_regs *regs, unsigned long address)  in do_trap()  argument
255 	regs->pc += 4;  in do_trap()
258 asmlinkage void do_unaligned_access(struct pt_regs *regs, unsigned long address)  in do_unaligned_access()  argument
260 	if (user_mode(regs)) {  in do_unaligned_access()
265 		show_registers(regs);  in do_unaligned_access()
266 		die("Die:", regs, address);  in do_unaligned_access()
271 asmlinkage void do_bus_fault(struct pt_regs *regs, unsigned long address)  in do_bus_fault()  argument
273 	if (user_mode(regs)) {  in do_bus_fault()
278 		show_registers(regs);  in do_bus_fault()
279 		die("Die:", regs, address);  in do_bus_fault()
283 static inline int in_delay_slot(struct pt_regs *regs)  in in_delay_slot()  argument
289 	insn = *((unsigned int *)regs->pc);  in in_delay_slot()
307 static inline void adjust_pc(struct pt_regs *regs, unsigned long address)  in adjust_pc()  argument
312 	if (unlikely(in_delay_slot(regs))) {  in adjust_pc()
314 		jmp = *((unsigned int *)regs->pc);  in adjust_pc()
322 			regs->pc += displacement;  in adjust_pc()
325 			regs->pc += displacement;  in adjust_pc()
326 			regs->gpr[9] = regs->pc + 8;  in adjust_pc()
329 			if (regs->sr & SPR_SR_F)  in adjust_pc()
330 				regs->pc += 8;  in adjust_pc()
332 				regs->pc += displacement;  in adjust_pc()
335 			if (regs->sr & SPR_SR_F)  in adjust_pc()
336 				regs->pc += displacement;  in adjust_pc()
338 				regs->pc += 8;  in adjust_pc()
341 			regs->pc = regs->gpr[rb];  in adjust_pc()
344 			regs->pc = regs->gpr[rb];  in adjust_pc()
345 			regs->gpr[9] = regs->pc + 8;  in adjust_pc()
351 		regs->pc += 4;  in adjust_pc()
355 static inline void simulate_lwa(struct pt_regs *regs, unsigned long address,  in simulate_lwa()  argument
365 	orig_pc = regs->pc;  in simulate_lwa()
366 	adjust_pc(regs, address);  in simulate_lwa()
371 	lwa_addr = (unsigned long __user *)(regs->gpr[ra] + imm);  in simulate_lwa()
374 		do_unaligned_access(regs, address);  in simulate_lwa()
379 		if (user_mode(regs)) {  in simulate_lwa()
385 			regs->pc = entry->fixup;  in simulate_lwa()
394 	regs->gpr[rd] = value;  in simulate_lwa()
397 static inline void simulate_swa(struct pt_regs *regs, unsigned long address,  in simulate_swa()  argument
407 	orig_pc = regs->pc;  in simulate_swa()
408 	adjust_pc(regs, address);  in simulate_swa()
413 	vaddr = (unsigned long __user *)(regs->gpr[ra] + imm);  in simulate_swa()
416 		regs->sr &= ~SPR_SR_F;  in simulate_swa()
421 		do_unaligned_access(regs, address);  in simulate_swa()
425 	if (put_user(regs->gpr[rb], vaddr)) {  in simulate_swa()
426 		if (user_mode(regs)) {  in simulate_swa()
432 			regs->pc = entry->fixup;  in simulate_swa()
437 		*((unsigned long *)vaddr) = regs->gpr[rb];  in simulate_swa()
441 	regs->sr |= SPR_SR_F;  in simulate_swa()
447 asmlinkage void do_illegal_instruction(struct pt_regs *regs,  in do_illegal_instruction()  argument
457 		simulate_lwa(regs, address, insn);  in do_illegal_instruction()
461 		simulate_swa(regs, address, insn);  in do_illegal_instruction()
468 	if (user_mode(regs)) {  in do_illegal_instruction()
474 		show_registers(regs);  in do_illegal_instruction()
475 		die("Die:", regs, address);  in do_illegal_instruction()