1#ifndef __ASM_SH_IRQFLAGS_H 2#define __ASM_SH_IRQFLAGS_H 3 4static inline void raw_local_irq_enable(void) 5{ 6 unsigned long __dummy0, __dummy1; 7 8 __asm__ __volatile__ ( 9 "stc sr, %0\n\t" 10 "and %1, %0\n\t" 11#ifdef CONFIG_CPU_HAS_SR_RB 12 "stc r6_bank, %1\n\t" 13 "or %1, %0\n\t" 14#endif 15 "ldc %0, sr\n\t" 16 : "=&r" (__dummy0), "=r" (__dummy1) 17 : "1" (~0x000000f0) 18 : "memory" 19 ); 20} 21 22static inline void raw_local_irq_disable(void) 23{ 24 unsigned long flags; 25 26 __asm__ __volatile__ ( 27 "stc sr, %0\n\t" 28 "or #0xf0, %0\n\t" 29 "ldc %0, sr\n\t" 30 : "=&z" (flags) 31 : /* no inputs */ 32 : "memory" 33 ); 34} 35 36static inline void set_bl_bit(void) 37{ 38 unsigned long __dummy0, __dummy1; 39 40 __asm__ __volatile__ ( 41 "stc sr, %0\n\t" 42 "or %2, %0\n\t" 43 "and %3, %0\n\t" 44 "ldc %0, sr\n\t" 45 : "=&r" (__dummy0), "=r" (__dummy1) 46 : "r" (0x10000000), "r" (0xffffff0f) 47 : "memory" 48 ); 49} 50 51static inline void clear_bl_bit(void) 52{ 53 unsigned long __dummy0, __dummy1; 54 55 __asm__ __volatile__ ( 56 "stc sr, %0\n\t" 57 "and %2, %0\n\t" 58 "ldc %0, sr\n\t" 59 : "=&r" (__dummy0), "=r" (__dummy1) 60 : "1" (~0x10000000) 61 : "memory" 62 ); 63} 64 65static inline unsigned long __raw_local_save_flags(void) 66{ 67 unsigned long flags; 68 69 __asm__ __volatile__ ( 70 "stc sr, %0\n\t" 71 "and #0xf0, %0\n\t" 72 : "=&z" (flags) 73 : /* no inputs */ 74 : "memory" 75 ); 76 77 return flags; 78} 79 80#define raw_local_save_flags(flags) \ 81 do { (flags) = __raw_local_save_flags(); } while (0) 82 83static inline int raw_irqs_disabled_flags(unsigned long flags) 84{ 85 return (flags != 0); 86} 87 88static inline int raw_irqs_disabled(void) 89{ 90 unsigned long flags = __raw_local_save_flags(); 91 92 return raw_irqs_disabled_flags(flags); 93} 94 95static inline unsigned long __raw_local_irq_save(void) 96{ 97 unsigned long flags, __dummy; 98 99 __asm__ __volatile__ ( 100 "stc sr, %1\n\t" 101 "mov %1, %0\n\t" 102 "or #0xf0, %0\n\t" 103 "ldc %0, sr\n\t" 104 "mov %1, %0\n\t" 105 "and #0xf0, %0\n\t" 106 : "=&z" (flags), "=&r" (__dummy) 107 : /* no inputs */ 108 : "memory" 109 ); 110 111 return flags; 112} 113 114#define raw_local_irq_save(flags) \ 115 do { (flags) = __raw_local_irq_save(); } while (0) 116 117#define local_irq_save raw_local_irq_save 118 119static inline void raw_local_irq_restore(unsigned long flags) 120{ 121 if ((flags & 0xf0) != 0xf0) 122 raw_local_irq_enable(); 123} 124#define local_irq_restore raw_local_irq_restore 125 126#endif /* __ASM_SH_IRQFLAGS_H */ 127