projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| d2a5f499 YS |
2 | #ifndef _H8300_IRQFLAGS_H |
| 3 | #define _H8300_IRQFLAGS_H | |
| 4 | ||
| 5 | #ifdef CONFIG_CPU_H8300H | |
| 6 | typedef unsigned char h8300flags; | |
| 7 | ||
| 8 | static inline h8300flags arch_local_save_flags(void) | |
| 9 | { | |
| 10 | h8300flags flags; | |
| 11 | ||
| 12 | __asm__ volatile ("stc ccr,%w0" : "=r" (flags)); | |
| 13 | return flags; | |
| 14 | } | |
| 15 | ||
| 16 | static inline void arch_local_irq_disable(void) | |
| 17 | { | |
| 18 | __asm__ volatile ("orc #0xc0,ccr"); | |
| 19 | } | |
| 20 | ||
| 21 | static inline void arch_local_irq_enable(void) | |
| 22 | { | |
| 23 | __asm__ volatile ("andc #0x3f,ccr"); | |
| 24 | } | |
| 25 | ||
| 26 | static inline h8300flags arch_local_irq_save(void) | |
| 27 | { | |
| 28 | h8300flags flags; | |
| 29 | ||
| 30 | __asm__ volatile ("stc ccr,%w0\n\t" | |
| 31 | "orc #0xc0,ccr" : "=r" (flags)); | |
| 32 | return flags; | |
| 33 | } | |
| 34 | ||
| 35 | static inline void arch_local_irq_restore(h8300flags flags) | |
| 36 | { | |
| 37 | __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc"); | |
| 38 | } | |
| 39 | ||
| 40 | static inline int arch_irqs_disabled_flags(unsigned long flags) | |
| 41 | { | |
| 42 | return (flags & 0xc0) == 0xc0; | |
| 43 | } | |
| 44 | #endif | |
| 45 | #ifdef CONFIG_CPU_H8S | |
| 46 | typedef unsigned short h8300flags; | |
| 47 | ||
| 48 | static inline h8300flags arch_local_save_flags(void) | |
| 49 | { | |
| 50 | h8300flags flags; | |
| 51 | ||
| 52 | __asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags)); | |
| 53 | return flags; | |
| 54 | } | |
| 55 | ||
| 56 | static inline void arch_local_irq_disable(void) | |
| 57 | { | |
| 58 | __asm__ volatile ("orc #0x80,ccr\n\t"); | |
| 59 | } | |
| 60 | ||
| 61 | static inline void arch_local_irq_enable(void) | |
| 62 | { | |
| 63 | __asm__ volatile ("andc #0x7f,ccr\n\t" | |
| 64 | "andc #0xf0,exr\n\t"); | |
| 65 | } | |
| 66 | ||
| 67 | static inline h8300flags arch_local_irq_save(void) | |
| 68 | { | |
| 69 | h8300flags flags; | |
| 70 | ||
| 71 | __asm__ volatile ("stc ccr,%w0\n\t" | |
| 72 | "stc exr,%x0\n\t" | |
| 73 | "orc #0x80,ccr\n\t" | |
| 74 | : "=r" (flags)); | |
| 75 | return flags; | |
| 76 | } | |
| 77 | ||
| 78 | static inline void arch_local_irq_restore(h8300flags flags) | |
| 79 | { | |
| 80 | __asm__ volatile ("ldc %w0,ccr\n\t" | |
| 81 | "ldc %x0,exr" | |
| 82 | : : "r" (flags) : "cc"); | |
| 83 | } | |
| 84 | ||
| 85 | static inline int arch_irqs_disabled_flags(h8300flags flags) | |
| 86 | { | |
| 87 | return (flags & 0x0080) == 0x0080; | |
| 88 | } | |
| 89 | ||
| 90 | #endif | |
| 91 | ||
| 92 | static inline int arch_irqs_disabled(void) | |
| 93 | { | |
| 94 | return arch_irqs_disabled_flags(arch_local_save_flags()); | |
| 95 | } | |
| 96 | ||
| 97 | #endif /* _H8300_IRQFLAGS_H */ |