cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ofconsole.c (830B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * OF console routines
      4 *
      5 * Copyright (C) Paul Mackerras 1997.
      6 */
      7#include <stddef.h>
      8#include "types.h"
      9#include "elf.h"
     10#include "string.h"
     11#include "stdio.h"
     12#include "page.h"
     13#include "ops.h"
     14
     15#include "of.h"
     16
     17static unsigned int of_stdout_handle;
     18
     19static int of_console_open(void)
     20{
     21	void *devp;
     22
     23	if (((devp = of_finddevice("/chosen")) != NULL)
     24	    && (of_getprop(devp, "stdout", &of_stdout_handle,
     25			   sizeof(of_stdout_handle))
     26		== sizeof(of_stdout_handle))) {
     27		of_stdout_handle = be32_to_cpu(of_stdout_handle);
     28		return 0;
     29	}
     30
     31	return -1;
     32}
     33
     34static void of_console_write(const char *buf, int len)
     35{
     36	of_call_prom("write", 3, 1, of_stdout_handle, buf, len);
     37}
     38
     39void of_console_init(void)
     40{
     41	console_ops.open = of_console_open;
     42	console_ops.write = of_console_write;
     43}