48 						       u32 insn);
239 static bool try_emulate_swp(struct pt_regs *regs, u32 insn)  in try_emulate_swp()  argument
245 	if ((insn & 0x0fb00ff0) != 0x01000090)  in try_emulate_swp()
248 	return swp_handler(regs, insn) == 0;  in try_emulate_swp()
322 static bool try_emulate_cp15_barrier(struct pt_regs *regs, u32 insn)  in try_emulate_cp15_barrier()  argument
327 	if ((insn & 0x0fff0fdf) == 0x0e070f9a)  in try_emulate_cp15_barrier()
328 		return cp15barrier_handler(regs, insn) == 0;  in try_emulate_cp15_barrier()
330 	if ((insn & 0x0fff0fff) == 0x0e070f95)  in try_emulate_cp15_barrier()
331 		return cp15barrier_handler(regs, insn) == 0;  in try_emulate_cp15_barrier()
359 	char *insn;  in compat_setend_handler()  local
364 		insn = "setend be";  in compat_setend_handler()
367 		insn = "setend le";  in compat_setend_handler()
371 	trace_instruction_emulation(insn, regs->pc);  in compat_setend_handler()
392 static bool try_emulate_setend(struct pt_regs *regs, u32 insn)  in try_emulate_setend()  argument
395 	    (insn & 0xfffffff7) == 0x0000b650)  in try_emulate_setend()
396 		return t16_setend_handler(regs, insn) == 0;  in try_emulate_setend()
399 	    (insn & 0xfffffdff) == 0xf1010000)  in try_emulate_setend()
400 		return a32_setend_handler(regs, insn) == 0;  in try_emulate_setend()
429 	struct insn_emulation *insn = (struct insn_emulation *)data;  in enable_insn_hw_mode()  local
430 	if (insn->set_hw_mode)  in enable_insn_hw_mode()
431 		insn->set_hw_mode(true);  in enable_insn_hw_mode()
436 	struct insn_emulation *insn = (struct insn_emulation *)data;  in disable_insn_hw_mode()  local
437 	if (insn->set_hw_mode)  in disable_insn_hw_mode()
438 		insn->set_hw_mode(false);  in disable_insn_hw_mode()
442 static int run_all_cpu_set_hw_mode(struct insn_emulation *insn, bool enable)  in run_all_cpu_set_hw_mode()  argument
444 	if (!insn->set_hw_mode)  in run_all_cpu_set_hw_mode()
447 		on_each_cpu(enable_insn_hw_mode, (void *)insn, true);  in run_all_cpu_set_hw_mode()
449 		on_each_cpu(disable_insn_hw_mode, (void *)insn, true);  in run_all_cpu_set_hw_mode()
472 		struct insn_emulation *insn = insn_emulations[i];  in run_all_insn_set_hw_mode()  local
473 		bool enable = READ_ONCE(insn->current_mode) == INSN_HW;  in run_all_insn_set_hw_mode()
474 		if (insn->set_hw_mode && insn->set_hw_mode(enable)) {  in run_all_insn_set_hw_mode()
476 				cpu, insn->name);  in run_all_insn_set_hw_mode()
485 static int update_insn_emulation_mode(struct insn_emulation *insn,  in update_insn_emulation_mode()  argument
496 		if (!run_all_cpu_set_hw_mode(insn, false))  in update_insn_emulation_mode()
497 			pr_notice("Disabled %s support\n", insn->name);  in update_insn_emulation_mode()
501 	switch (insn->current_mode) {  in update_insn_emulation_mode()
507 		ret = run_all_cpu_set_hw_mode(insn, true);  in update_insn_emulation_mode()
509 			pr_notice("Enabled %s support\n", insn->name);  in update_insn_emulation_mode()
521 	struct insn_emulation *insn = container_of(table->data, struct insn_emulation, current_mode);  in emulation_proc_handler()  local
522 	enum insn_emulation_mode prev_mode = insn->current_mode;  in emulation_proc_handler()
527 	if (ret || !write || prev_mode == insn->current_mode)  in emulation_proc_handler()
530 	ret = update_insn_emulation_mode(insn, prev_mode);  in emulation_proc_handler()
533 		WRITE_ONCE(insn->current_mode, prev_mode);  in emulation_proc_handler()
534 		update_insn_emulation_mode(insn, INSN_UNDEF);  in emulation_proc_handler()
541 static void __init register_insn_emulation(struct insn_emulation *insn)  in register_insn_emulation()  argument
545 	insn->min = INSN_UNDEF;  in register_insn_emulation()
547 	switch (insn->status) {  in register_insn_emulation()
549 		insn->current_mode = INSN_EMULATE;  in register_insn_emulation()
551 		run_all_cpu_set_hw_mode(insn, false);  in register_insn_emulation()
552 		insn->max = INSN_HW;  in register_insn_emulation()
555 		insn->current_mode = INSN_UNDEF;  in register_insn_emulation()
556 		insn->max = INSN_EMULATE;  in register_insn_emulation()
559 		insn->current_mode = INSN_UNDEF;  in register_insn_emulation()
560 		insn->max = INSN_UNDEF;  in register_insn_emulation()
565 	update_insn_emulation_mode(insn, INSN_UNDEF);  in register_insn_emulation()
567 	if (insn->status != INSN_UNAVAILABLE) {  in register_insn_emulation()
568 		sysctl = &insn->sysctl[0];  in register_insn_emulation()
573 		sysctl->procname = insn->name;  in register_insn_emulation()
574 		sysctl->data = &insn->current_mode;  in register_insn_emulation()
575 		sysctl->extra1 = &insn->min;  in register_insn_emulation()
576 		sysctl->extra2 = &insn->max;  in register_insn_emulation()
583 bool try_emulate_armv8_deprecated(struct pt_regs *regs, u32 insn)  in try_emulate_armv8_deprecated()  argument
601 		if (ie->try_emulate(regs, insn))  in try_emulate_armv8_deprecated()