mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 01:15:16 +07:00
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
|
/*
|
||
|
|
* Carsten Langgaard, carstenl@mips.com
|
||
|
|
* Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can distribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License (Version 2) as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
|
|
* for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License along
|
||
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||
|
|
* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
|
||
|
|
*
|
||
|
|
* Kernel command line creation using the prom monitor (YAMON) argc/argv.
|
||
|
|
*/
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/string.h>
|
||
|
|
|
||
|
|
#include <asm/bootinfo.h>
|
||
|
|
|
||
|
|
extern int prom_argc;
|
||
|
|
extern int *_prom_argv;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* YAMON (32-bit PROM) pass arguments and environment as 32-bit pointer.
|
||
|
|
* This macro take care of sign extension.
|
||
|
|
*/
|
||
|
|
#define prom_argv(index) ((char *)(long)_prom_argv[(index)])
|
||
|
|
|
||
|
|
char * __init prom_getcmdline(void)
|
||
|
|
{
|
||
|
|
return &(arcs_cmdline[0]);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void __init prom_init_cmdline(void)
|
||
|
|
{
|
||
|
|
char *cp;
|
||
|
|
int actr;
|
||
|
|
|
||
|
|
actr = 1; /* Always ignore argv[0] */
|
||
|
|
|
||
|
|
cp = &(arcs_cmdline[0]);
|
||
|
|
while(actr < prom_argc) {
|
||
|
|
strcpy(cp, prom_argv(actr));
|
||
|
|
cp += strlen(prom_argv(actr));
|
||
|
|
*cp++ = ' ';
|
||
|
|
actr++;
|
||
|
|
}
|
||
|
|
if (cp != &(arcs_cmdline[0])) {
|
||
|
|
/* get rid of trailing space */
|
||
|
|
--cp;
|
||
|
|
*cp = '\0';
|
||
|
|
}
|
||
|
|
}
|