58 lines
1.1 KiB
C
58 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 arch_local_irq_restore(unsigned long flags)
|
|
{
|
|
unsigned long __dummy0, __dummy1;
|
|
|
|
if (flags == ARCH_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" (~ARCH_IRQ_DISABLED)
|
|
: "memory"
|
|
);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(arch_local_irq_restore);
|
|
|
|
unsigned long notrace arch_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(arch_local_save_flags);
|