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csky: IRQ handling

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This patch adds IRQ handling files.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Guo Ren
2018-09-05 14:25:15 +08:00
parent dd3ef10ea2
commit e38a5272ba
2 changed files with 71 additions and 0 deletions
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49
arch/csky/include/asm/irqflags.h Normal file
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@@ -0,0 +1,49 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_CSKY_IRQFLAGS_H
#define __ASM_CSKY_IRQFLAGS_H
#include <abi/reg_ops.h>
static inline unsigned long arch_local_irq_save(void)
{
unsigned long flags;
flags = mfcr("psr");
asm volatile("psrclr ie\n":::"memory");
return flags;
}
#define arch_local_irq_save arch_local_irq_save
static inline void arch_local_irq_enable(void)
{
asm volatile("psrset ee, ie\n":::"memory");
}
#define arch_local_irq_enable arch_local_irq_enable
static inline void arch_local_irq_disable(void)
{
asm volatile("psrclr ie\n":::"memory");
}
#define arch_local_irq_disable arch_local_irq_disable
static inline unsigned long arch_local_save_flags(void)
{
return mfcr("psr");
}
#define arch_local_save_flags arch_local_save_flags
static inline void arch_local_irq_restore(unsigned long flags)
{
mtcr("psr", flags);
}
#define arch_local_irq_restore arch_local_irq_restore
static inline int arch_irqs_disabled_flags(unsigned long flags)
{
return !(flags & (1<<6));
}
#define arch_irqs_disabled_flags arch_irqs_disabled_flags
#include <asm-generic/irqflags.h>
#endif /* __ASM_CSKY_IRQFLAGS_H */