9 	unsigned long fp;  member
18 	if (unlikely(frame->fp < low || frame->fp > high))  in unwind_frame_kernel()
21 	if (kstack_end((void *)frame->fp) || frame->fp & 0x3)  in unwind_frame_kernel()
24 	*frame = *(struct stackframe *)frame->fp;  in unwind_frame_kernel()
48 			unsigned long fp, unsigned long reg_lr)  in user_backtrace()  argument
52 	unsigned long *user_frame_tail = (unsigned long *)fp;  in user_backtrace()
66 	fp = buftail.fp;  in user_backtrace()
69 	return fp;  in user_backtrace()
89 	unsigned long fp = 0;  in perf_callchain_user()  local
95 	fp = regs->regs[4];  in perf_callchain_user()
104 	fp = user_backtrace(entry, fp, regs->lr);  in perf_callchain_user()
106 	while (fp && !(fp & 0x3) && entry->nr < entry->max_stack)  in perf_callchain_user()
107 		fp = user_backtrace(entry, fp, 0);  in perf_callchain_user()
121 	fr.fp = regs->regs[4];  in perf_callchain_kernel()