1 /* 2 * linux/arch/unicore32/include/asm/irqflags.h 3 * 4 * Code specific to PKUnity SoC and UniCore ISA 5 * 6 * Copyright (C) 2001-2010 GUAN Xue-tao 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 #ifndef __UNICORE_IRQFLAGS_H__ 13 #define __UNICORE_IRQFLAGS_H__ 14 15 #ifdef __KERNEL__ 16 17 #include <asm/ptrace.h> 18 19 #define ARCH_IRQ_DISABLED (PRIV_MODE | PSR_I_BIT) 20 #define ARCH_IRQ_ENABLED (PRIV_MODE) 21 22 /* 23 * Save the current interrupt enable state. 24 */ arch_local_save_flags(void)25static inline unsigned long arch_local_save_flags(void) 26 { 27 unsigned long temp; 28 29 asm volatile("mov %0, asr" : "=r" (temp) : : "memory", "cc"); 30 31 return temp & PSR_c; 32 } 33 34 /* 35 * restore saved IRQ state 36 */ arch_local_irq_restore(unsigned long flags)37static inline void arch_local_irq_restore(unsigned long flags) 38 { 39 unsigned long temp; 40 41 asm volatile( 42 "mov %0, asr\n" 43 "mov.a asr, %1\n" 44 "mov.f asr, %0" 45 : "=&r" (temp) 46 : "r" (flags) 47 : "memory", "cc"); 48 } 49 50 #include <asm-generic/irqflags.h> 51 52 #endif 53 #endif 54