98 lines
1.9 KiB
C
98 lines
1.9 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _H8300_IRQFLAGS_H
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#define _H8300_IRQFLAGS_H
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#ifdef CONFIG_CPU_H8300H
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typedef unsigned char h8300flags;
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static inline h8300flags arch_local_save_flags(void)
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{
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h8300flags flags;
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__asm__ volatile ("stc ccr,%w0" : "=r" (flags));
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return flags;
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}
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static inline void arch_local_irq_disable(void)
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{
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__asm__ volatile ("orc #0xc0,ccr");
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}
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static inline void arch_local_irq_enable(void)
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{
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__asm__ volatile ("andc #0x3f,ccr");
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}
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static inline h8300flags arch_local_irq_save(void)
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{
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h8300flags flags;
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__asm__ volatile ("stc ccr,%w0\n\t"
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"orc #0xc0,ccr" : "=r" (flags));
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return flags;
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}
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static inline void arch_local_irq_restore(h8300flags flags)
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{
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__asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc");
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}
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static inline int arch_irqs_disabled_flags(unsigned long flags)
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{
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return (flags & 0xc0) == 0xc0;
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}
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#endif
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#ifdef CONFIG_CPU_H8S
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typedef unsigned short h8300flags;
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static inline h8300flags arch_local_save_flags(void)
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{
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h8300flags flags;
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__asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags));
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return flags;
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}
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static inline void arch_local_irq_disable(void)
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{
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__asm__ volatile ("orc #0x80,ccr\n\t");
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}
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static inline void arch_local_irq_enable(void)
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{
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__asm__ volatile ("andc #0x7f,ccr\n\t"
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"andc #0xf0,exr\n\t");
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}
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static inline h8300flags arch_local_irq_save(void)
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{
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h8300flags flags;
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__asm__ volatile ("stc ccr,%w0\n\t"
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"stc exr,%x0\n\t"
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"orc #0x80,ccr\n\t"
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: "=r" (flags));
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return flags;
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}
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static inline void arch_local_irq_restore(h8300flags flags)
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{
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__asm__ volatile ("ldc %w0,ccr\n\t"
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"ldc %x0,exr"
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: : "r" (flags) : "cc");
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}
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static inline int arch_irqs_disabled_flags(h8300flags flags)
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{
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return (flags & 0x0080) == 0x0080;
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}
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#endif
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static inline int arch_irqs_disabled(void)
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{
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return arch_irqs_disabled_flags(arch_local_save_flags());
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}
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#endif /* _H8300_IRQFLAGS_H */
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