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Edit File: dcc.h

/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (c) 2010, 2014 The Linux Foundation. All rights reserved. */ #include <asm/barrier.h> static inline u32 __dcc_getstatus(void) { u32 __ret; asm volatile("mrc p14, 0, %0, c0, c1, 0 @ read comms ctrl reg" : "=r" (__ret) : : "cc"); return __ret; } static inline char __dcc_getchar(void) { char __c; asm volatile("mrc p14, 0, %0, c0, c5, 0 @ read comms data reg" : "=r" (__c)); isb(); return __c; } static inline void __dcc_putchar(char c) { asm volatile("mcr p14, 0, %0, c0, c5, 0 @ write a char" : /* no output register */ : "r" (c)); isb(); }