Yoshinori Sato | d2a5f49 | 2015-05-11 02:20:06 +0900 | [diff] [blame] | 1 | #ifndef _H8300_IRQFLAGS_H |
| 2 | #define _H8300_IRQFLAGS_H |
| 3 | |
| 4 | #ifdef CONFIG_CPU_H8300H |
| 5 | typedef unsigned char h8300flags; |
| 6 | |
| 7 | static inline h8300flags arch_local_save_flags(void) |
| 8 | { |
| 9 | h8300flags flags; |
| 10 | |
| 11 | __asm__ volatile ("stc ccr,%w0" : "=r" (flags)); |
| 12 | return flags; |
| 13 | } |
| 14 | |
| 15 | static inline void arch_local_irq_disable(void) |
| 16 | { |
| 17 | __asm__ volatile ("orc #0xc0,ccr"); |
| 18 | } |
| 19 | |
| 20 | static inline void arch_local_irq_enable(void) |
| 21 | { |
| 22 | __asm__ volatile ("andc #0x3f,ccr"); |
| 23 | } |
| 24 | |
| 25 | static inline h8300flags arch_local_irq_save(void) |
| 26 | { |
| 27 | h8300flags flags; |
| 28 | |
| 29 | __asm__ volatile ("stc ccr,%w0\n\t" |
| 30 | "orc #0xc0,ccr" : "=r" (flags)); |
| 31 | return flags; |
| 32 | } |
| 33 | |
| 34 | static inline void arch_local_irq_restore(h8300flags flags) |
| 35 | { |
| 36 | __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc"); |
| 37 | } |
| 38 | |
| 39 | static inline int arch_irqs_disabled_flags(unsigned long flags) |
| 40 | { |
| 41 | return (flags & 0xc0) == 0xc0; |
| 42 | } |
| 43 | #endif |
| 44 | #ifdef CONFIG_CPU_H8S |
| 45 | typedef unsigned short h8300flags; |
| 46 | |
| 47 | static inline h8300flags arch_local_save_flags(void) |
| 48 | { |
| 49 | h8300flags flags; |
| 50 | |
| 51 | __asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags)); |
| 52 | return flags; |
| 53 | } |
| 54 | |
| 55 | static inline void arch_local_irq_disable(void) |
| 56 | { |
| 57 | __asm__ volatile ("orc #0x80,ccr\n\t"); |
| 58 | } |
| 59 | |
| 60 | static inline void arch_local_irq_enable(void) |
| 61 | { |
| 62 | __asm__ volatile ("andc #0x7f,ccr\n\t" |
| 63 | "andc #0xf0,exr\n\t"); |
| 64 | } |
| 65 | |
| 66 | static inline h8300flags arch_local_irq_save(void) |
| 67 | { |
| 68 | h8300flags flags; |
| 69 | |
| 70 | __asm__ volatile ("stc ccr,%w0\n\t" |
| 71 | "stc exr,%x0\n\t" |
| 72 | "orc #0x80,ccr\n\t" |
| 73 | : "=r" (flags)); |
| 74 | return flags; |
| 75 | } |
| 76 | |
| 77 | static inline void arch_local_irq_restore(h8300flags flags) |
| 78 | { |
| 79 | __asm__ volatile ("ldc %w0,ccr\n\t" |
| 80 | "ldc %x0,exr" |
| 81 | : : "r" (flags) : "cc"); |
| 82 | } |
| 83 | |
| 84 | static inline int arch_irqs_disabled_flags(h8300flags flags) |
| 85 | { |
| 86 | return (flags & 0x0080) == 0x0080; |
| 87 | } |
| 88 | |
| 89 | #endif |
| 90 | |
| 91 | static inline int arch_irqs_disabled(void) |
| 92 | { |
| 93 | return arch_irqs_disabled_flags(arch_local_save_flags()); |
| 94 | } |
| 95 | |
| 96 | #endif /* _H8300_IRQFLAGS_H */ |