29 static void xtensa_backtrace_user(struct pt_regs *regs, unsigned int depth)  in xtensa_backtrace_user()  argument
31 	unsigned long windowstart = regs->windowstart;  in xtensa_backtrace_user()
32 	unsigned long windowbase = regs->windowbase;  in xtensa_backtrace_user()
33 	unsigned long a0 = regs->areg[0];  in xtensa_backtrace_user()
34 	unsigned long a1 = regs->areg[1];  in xtensa_backtrace_user()
35 	unsigned long pc = MAKE_PC_FROM_RA(a0, regs->pc);  in xtensa_backtrace_user()
66 			a0 = regs->areg[index * 4];  in xtensa_backtrace_user()
67 			a1 = regs->areg[index * 4 + 1];  in xtensa_backtrace_user()
114 static void xtensa_backtrace_kernel(struct pt_regs *regs, unsigned int depth)  in xtensa_backtrace_kernel()  argument
116 	unsigned long pc = regs->pc;  in xtensa_backtrace_kernel()
119 	unsigned long a0 = regs->areg[0];  in xtensa_backtrace_kernel()
120 	unsigned long a1 = regs->areg[1];  in xtensa_backtrace_kernel()
137 			regs = (struct pt_regs *)a1;  in xtensa_backtrace_kernel()
138 			if (user_mode(regs)) {  in xtensa_backtrace_kernel()
139 				pc = regs->pc;  in xtensa_backtrace_kernel()
144 				return xtensa_backtrace_user(regs, depth);  in xtensa_backtrace_kernel()
146 			a0 = regs->areg[0];  in xtensa_backtrace_kernel()
147 			a1 = regs->areg[1];  in xtensa_backtrace_kernel()
163 void xtensa_backtrace(struct pt_regs * const regs, unsigned int depth)  in xtensa_backtrace()  argument
165 	if (user_mode(regs))  in xtensa_backtrace()
166 		xtensa_backtrace_user(regs, depth);  in xtensa_backtrace()
168 		xtensa_backtrace_kernel(regs, depth);  in xtensa_backtrace()