diff options
Diffstat (limited to 'arch/score/include/asm/irqflags.h')
| -rw-r--r-- | arch/score/include/asm/irqflags.h | 187 |
1 files changed, 99 insertions, 88 deletions
diff --git a/arch/score/include/asm/irqflags.h b/arch/score/include/asm/irqflags.h index 690a6cae7294..5c7563891e28 100644 --- a/arch/score/include/asm/irqflags.h +++ b/arch/score/include/asm/irqflags.h | |||
| @@ -3,107 +3,118 @@ | |||
| 3 | 3 | ||
| 4 | #ifndef __ASSEMBLY__ | 4 | #ifndef __ASSEMBLY__ |
| 5 | 5 | ||
| 6 | #define raw_local_irq_save(x) \ | 6 | #include <linux/types.h> |
| 7 | { \ | 7 | |
| 8 | __asm__ __volatile__( \ | 8 | static inline unsigned long arch_local_save_flags(void) |
| 9 | "mfcr r8, cr0;" \ | 9 | { |
| 10 | "li r9, 0xfffffffe;" \ | 10 | unsigned long flags; |
| 11 | "nop;" \ | 11 | |
| 12 | "mv %0, r8;" \ | 12 | asm volatile( |
| 13 | "and r8, r8, r9;" \ | 13 | " mfcr r8, cr0 \n" |
| 14 | "mtcr r8, cr0;" \ | 14 | " nop \n" |
| 15 | "nop;" \ | 15 | " nop \n" |
| 16 | "nop;" \ | 16 | " mv %0, r8 \n" |
| 17 | "nop;" \ | 17 | " nop \n" |
| 18 | "nop;" \ | 18 | " nop \n" |
| 19 | "nop;" \ | 19 | " nop \n" |
| 20 | : "=r" (x) \ | 20 | " nop \n" |
| 21 | : \ | 21 | " nop \n" |
| 22 | : "r8", "r9" \ | 22 | " ldi r9, 0x1 \n" |
| 23 | ); \ | 23 | " and %0, %0, r9 \n" |
| 24 | : "=r" (flags) | ||
| 25 | : | ||
| 26 | : "r8", "r9"); | ||
| 27 | return flags; | ||
| 24 | } | 28 | } |
| 25 | 29 | ||
| 26 | #define raw_local_irq_restore(x) \ | 30 | static inline unsigned long arch_local_irq_save(void) |
| 27 | { \ | 31 | { |
| 28 | __asm__ __volatile__( \ | 32 | unsigned long flags |
| 29 | "mfcr r8, cr0;" \ | 33 | |
| 30 | "ldi r9, 0x1;" \ | 34 | asm volatile( |
| 31 | "and %0, %0, r9;" \ | 35 | " mfcr r8, cr0 \n" |
| 32 | "or r8, r8, %0;" \ | 36 | " li r9, 0xfffffffe \n" |
| 33 | "mtcr r8, cr0;" \ | 37 | " nop \n" |
| 34 | "nop;" \ | 38 | " mv %0, r8 \n" |
| 35 | "nop;" \ | 39 | " and r8, r8, r9 \n" |
| 36 | "nop;" \ | 40 | " mtcr r8, cr0 \n" |
| 37 | "nop;" \ | 41 | " nop \n" |
| 38 | "nop;" \ | 42 | " nop \n" |
| 39 | : \ | 43 | " nop \n" |
| 40 | : "r"(x) \ | 44 | " nop \n" |
| 41 | : "r8", "r9" \ | 45 | " nop \n" |
| 42 | ); \ | 46 | : "=r" (flags) |
| 47 | : | ||
| 48 | : "r8", "r9", "memory"); | ||
| 49 | |||
| 50 | return flags; | ||
| 43 | } | 51 | } |
| 44 | 52 | ||
| 45 | #define raw_local_irq_enable(void) \ | 53 | static inline void arch_local_irq_restore(unsigned long flags) |
| 46 | { \ | 54 | { |
| 47 | __asm__ __volatile__( \ | 55 | asm volatile( |
| 48 | "mfcr\tr8,cr0;" \ | 56 | " mfcr r8, cr0 \n" |
| 49 | "nop;" \ | 57 | " ldi r9, 0x1 \n" |
| 50 | "nop;" \ | 58 | " and %0, %0, r9 \n" |
| 51 | "ori\tr8,0x1;" \ | 59 | " or r8, r8, %0 \n" |
| 52 | "mtcr\tr8,cr0;" \ | 60 | " mtcr r8, cr0 \n" |
| 53 | "nop;" \ | 61 | " nop \n" |
| 54 | "nop;" \ | 62 | " nop \n" |
| 55 | "nop;" \ | 63 | " nop \n" |
| 56 | "nop;" \ | 64 | " nop \n" |
| 57 | "nop;" \ | 65 | " nop \n" |
| 58 | : \ | 66 | : |
| 59 | : \ | 67 | : "r"(flags) |
| 60 | : "r8"); \ | 68 | : "r8", "r9", "memory"); |
| 61 | } | 69 | } |
| 62 | 70 | ||
| 63 | #define raw_local_irq_disable(void) \ | 71 | static inline void arch_local_irq_enable(void) |
| 64 | { \ | 72 | { |
| 65 | __asm__ __volatile__( \ | 73 | asm volatile( |
| 66 | "mfcr\tr8,cr0;" \ | 74 | " mfcr r8,cr0 \n" |
| 67 | "nop;" \ | 75 | " nop \n" |
| 68 | "nop;" \ | 76 | " nop \n" |
| 69 | "srli\tr8,r8,1;" \ | 77 | " ori r8,0x1 \n" |
| 70 | "slli\tr8,r8,1;" \ | 78 | " mtcr r8,cr0 \n" |
| 71 | "mtcr\tr8,cr0;" \ | 79 | " nop \n" |
| 72 | "nop;" \ | 80 | " nop \n" |
| 73 | "nop;" \ | 81 | " nop \n" |
| 74 | "nop;" \ | 82 | " nop \n" |
| 75 | "nop;" \ | 83 | " nop \n" |
| 76 | "nop;" \ | 84 | : |
| 77 | : \ | 85 | : |
| 78 | : \ | 86 | : "r8", "memory"); |
| 79 | : "r8"); \ | ||
| 80 | } | 87 | } |
| 81 | 88 | ||
| 82 | #define raw_local_save_flags(x) \ | 89 | static inline void arch_local_irq_disable(void) |
| 83 | { \ | 90 | { |
| 84 | __asm__ __volatile__( \ | 91 | asm volatile( |
| 85 | "mfcr r8, cr0;" \ | 92 | " mfcr r8,cr0 \n" |
| 86 | "nop;" \ | 93 | " nop \n" |
| 87 | "nop;" \ | 94 | " nop \n" |
| 88 | "mv %0, r8;" \ | 95 | " srli r8,r8,1 \n" |
| 89 | "nop;" \ | 96 | " slli r8,r8,1 \n" |
| 90 | "nop;" \ | 97 | " mtcr r8,cr0 \n" |
| 91 | "nop;" \ | 98 | " nop \n" |
| 92 | "nop;" \ | 99 | " nop \n" |
| 93 | "nop;" \ | 100 | " nop \n" |
| 94 | "ldi r9, 0x1;" \ | 101 | " nop \n" |
| 95 | "and %0, %0, r9;" \ | 102 | " nop \n" |
| 96 | : "=r" (x) \ | 103 | : |
| 97 | : \ | 104 | : |
| 98 | : "r8", "r9" \ | 105 | : "r8", "memory"); |
| 99 | ); \ | ||
| 100 | } | 106 | } |
| 101 | 107 | ||
| 102 | static inline int raw_irqs_disabled_flags(unsigned long flags) | 108 | static inline bool arch_irqs_disabled_flags(unsigned long flags) |
| 103 | { | 109 | { |
| 104 | return !(flags & 1); | 110 | return !(flags & 1); |
| 105 | } | 111 | } |
| 106 | 112 | ||
| 107 | #endif | 113 | static inline bool arch_irqs_disabled(void) |
| 114 | { | ||
| 115 | return arch_irqs_disabled_flags(arch_local_save_flags()); | ||
| 116 | } | ||
| 117 | |||
| 118 | #endif /* __ASSEMBLY__ */ | ||
| 108 | 119 | ||
| 109 | #endif /* _ASM_SCORE_IRQFLAGS_H */ | 120 | #endif /* _ASM_SCORE_IRQFLAGS_H */ |