15 static int ftrace_modify_code(unsigned long pc, u32 old, u32 new, bool validate)  in ftrace_modify_code()  argument
20 		if (larch_insn_read((void *)pc, &replaced))  in ftrace_modify_code()
27 	if (larch_insn_patch_text((void *)pc, new))  in ftrace_modify_code()
34 static bool reachable_by_bl(unsigned long addr, unsigned long pc)  in reachable_by_bl()  argument
36 	long offset = (long)addr - (long)pc;  in reachable_by_bl()
65 	unsigned long pc = rec->ip + LOONGARCH_INSN_SIZE;  in ftrace_find_callable_addr()  local
73 	if (*addr != FTRACE_ADDR && *addr != FTRACE_REGS_ADDR && !reachable_by_bl(*addr, pc))  in ftrace_find_callable_addr()
80 	if (reachable_by_bl(*addr, pc))  in ftrace_find_callable_addr()
94 		mod = __module_text_address(pc);  in ftrace_find_callable_addr()
121 	unsigned long pc;  in ftrace_modify_call()  local
123 	pc = rec->ip + LOONGARCH_INSN_SIZE;  in ftrace_modify_call()
131 	new = larch_insn_gen_bl(pc, addr);  in ftrace_modify_call()
132 	old = larch_insn_gen_bl(pc, old_addr);  in ftrace_modify_call()
134 	return ftrace_modify_code(pc, old, new, true);  in ftrace_modify_call()
141 	unsigned long pc;  in ftrace_update_ftrace_func()  local
143 	pc = (unsigned long)&ftrace_call;  in ftrace_update_ftrace_func()
144 	new = larch_insn_gen_bl(pc, (unsigned long)func);  in ftrace_update_ftrace_func()
146 	return ftrace_modify_code(pc, 0, new, false);  in ftrace_update_ftrace_func()
173 	unsigned long pc;  in ftrace_init_nop()  local
175 	pc = rec->ip;  in ftrace_init_nop()
179 	return ftrace_modify_code(pc, old, new, true);  in ftrace_init_nop()
185 	unsigned long pc;  in ftrace_make_call()  local
187 	pc = rec->ip + LOONGARCH_INSN_SIZE;  in ftrace_make_call()
193 	new = larch_insn_gen_bl(pc, addr);  in ftrace_make_call()
195 	return ftrace_modify_code(pc, old, new, true);  in ftrace_make_call()
201 	unsigned long pc;  in ftrace_make_nop()  local
203 	pc = rec->ip + LOONGARCH_INSN_SIZE;  in ftrace_make_nop()
209 	old = larch_insn_gen_bl(pc, addr);  in ftrace_make_nop()
211 	return ftrace_modify_code(pc, old, new, true);  in ftrace_make_nop()
253 	unsigned long pc, func;  in ftrace_modify_graph_caller()  local
256 	pc = (unsigned long)&ftrace_graph_call;  in ftrace_modify_graph_caller()
260 	branch = larch_insn_gen_b(pc, func);  in ftrace_modify_graph_caller()
263 		return ftrace_modify_code(pc, nop, branch, true);  in ftrace_modify_graph_caller()
265 		return ftrace_modify_code(pc, branch, nop, true);  in ftrace_modify_graph_caller()