mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 23:56:45 +07:00
45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
|
/*
|
||
|
|
* internal.h - printk internal definitions
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version 2
|
||
|
|
* of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that 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, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
#include <linux/percpu.h>
|
||
|
|
|
||
|
|
typedef __printf(1, 0) int (*printk_func_t)(const char *fmt, va_list args);
|
||
|
|
|
||
|
|
int __printf(1, 0) vprintk_default(const char *fmt, va_list args);
|
||
|
|
|
||
|
|
#ifdef CONFIG_PRINTK_NMI
|
||
|
|
|
||
|
|
/*
|
||
|
|
* printk() could not take logbuf_lock in NMI context. Instead,
|
||
|
|
* it temporary stores the strings into a per-CPU buffer.
|
||
|
|
* The alternative implementation is chosen transparently
|
||
|
|
* via per-CPU variable.
|
||
|
|
*/
|
||
|
|
DECLARE_PER_CPU(printk_func_t, printk_func);
|
||
|
|
static inline __printf(1, 0) int vprintk_func(const char *fmt, va_list args)
|
||
|
|
{
|
||
|
|
return this_cpu_read(printk_func)(fmt, args);
|
||
|
|
}
|
||
|
|
|
||
|
|
#else /* CONFIG_PRINTK_NMI */
|
||
|
|
|
||
|
|
static inline __printf(1, 0) int vprintk_func(const char *fmt, va_list args)
|
||
|
|
{
|
||
|
|
return vprintk_default(fmt, args);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* CONFIG_PRINTK_NMI */
|