linux/arch/sh/kernel/irq_32.c
Matt Fleming 3f375f12ec sh: Annotate irq functions with "notrace"
Now that SH's irqflags functions are out of line it becomes necessary to
mark them as "notrace" so that we don't try to trace them.

[ Do the same for irq_64.c -- PFM. ]

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27 07:37:10 +09:00

57 lines
1.1 KiB
C

/*
* SHcompact irqflags support
*
* Copyright (C) 2006 - 2009 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/irqflags.h>
#include <linux/module.h>
void notrace raw_local_irq_restore(unsigned long flags)
{
unsigned long __dummy0, __dummy1;
if (flags == RAW_IRQ_DISABLED) {
__asm__ __volatile__ (
"stc sr, %0\n\t"
"or #0xf0, %0\n\t"
"ldc %0, sr\n\t"
: "=&z" (__dummy0)
: /* no inputs */
: "memory"
);
} else {
__asm__ __volatile__ (
"stc sr, %0\n\t"
"and %1, %0\n\t"
#ifdef CONFIG_CPU_HAS_SR_RB
"stc r6_bank, %1\n\t"
"or %1, %0\n\t"
#endif
"ldc %0, sr\n\t"
: "=&r" (__dummy0), "=r" (__dummy1)
: "1" (~RAW_IRQ_DISABLED)
: "memory"
);
}
}
EXPORT_SYMBOL(raw_local_irq_restore);
unsigned long notrace __raw_local_save_flags(void)
{
unsigned long flags;
__asm__ __volatile__ (
"stc sr, %0\n\t"
"and #0xf0, %0\n\t"
: "=&z" (flags)
: /* no inputs */
: "memory"
);
return flags;
}
EXPORT_SYMBOL(__raw_local_save_flags);