mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-13 01:36:55 +07:00
79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
|
/*
|
||
|
|
* natfeat.c - ARAnyM hardware support via Native Features (natfeats)
|
||
|
|
*
|
||
|
|
* Copyright (c) 2005 Petr Stehlik of ARAnyM dev team
|
||
|
|
*
|
||
|
|
* Reworked for Linux by Roman Zippel <zippel@linux-m68k.org>
|
||
|
|
*
|
||
|
|
* This software may be used and distributed according to the terms of
|
||
|
|
* the GNU General Public License (GPL), incorporated herein by reference.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/console.h>
|
||
|
|
#include <linux/string.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <asm/machdep.h>
|
||
|
|
#include <asm/natfeat.h>
|
||
|
|
|
||
|
|
asm("\n"
|
||
|
|
" .global nf_get_id,nf_call\n"
|
||
|
|
"nf_get_id:\n"
|
||
|
|
" .short 0x7300\n"
|
||
|
|
" rts\n"
|
||
|
|
"nf_call:\n"
|
||
|
|
" .short 0x7301\n"
|
||
|
|
" rts\n"
|
||
|
|
"1: moveq.l #0,%d0\n"
|
||
|
|
" rts\n"
|
||
|
|
" .section __ex_table,\"a\"\n"
|
||
|
|
" .long nf_get_id,1b\n"
|
||
|
|
" .long nf_call,1b\n"
|
||
|
|
" .previous");
|
||
|
|
EXPORT_SYMBOL_GPL(nf_get_id);
|
||
|
|
EXPORT_SYMBOL_GPL(nf_call);
|
||
|
|
|
||
|
|
void nfprint(const char *fmt, ...)
|
||
|
|
{
|
||
|
|
static char buf[256];
|
||
|
|
va_list ap;
|
||
|
|
int n;
|
||
|
|
|
||
|
|
va_start(ap, fmt);
|
||
|
|
n = vsnprintf(buf, 256, fmt, ap);
|
||
|
|
nf_call(nf_get_id("NF_STDERR"), buf);
|
||
|
|
va_end(ap);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void nf_poweroff(void)
|
||
|
|
{
|
||
|
|
long id = nf_get_id("NF_SHUTDOWN");
|
||
|
|
|
||
|
|
if (id)
|
||
|
|
nf_call(id);
|
||
|
|
}
|
||
|
|
|
||
|
|
void nf_init(void)
|
||
|
|
{
|
||
|
|
unsigned long id, version;
|
||
|
|
char buf[256];
|
||
|
|
|
||
|
|
id = nf_get_id("NF_VERSION");
|
||
|
|
if (!id)
|
||
|
|
return;
|
||
|
|
version = nf_call(id);
|
||
|
|
|
||
|
|
id = nf_get_id("NF_NAME");
|
||
|
|
if (!id)
|
||
|
|
return;
|
||
|
|
nf_call(id, buf, 256);
|
||
|
|
buf[255] = 0;
|
||
|
|
|
||
|
|
pr_info("NatFeats found (%s, %lu.%lu)\n", buf, version >> 16,
|
||
|
|
version & 0xffff);
|
||
|
|
|
||
|
|
mach_power_off = nf_poweroff;
|
||
|
|
}
|