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/*
* 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);
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