1/* 2 * SHmedia irqflags support 3 * 4 * Copyright (C) 2006 - 2009 Paul Mundt 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 */ 10#include <linux/irqflags.h> 11#include <linux/module.h> 12#include <cpu/registers.h> 13 14void notrace arch_local_irq_restore(unsigned long flags) 15{ 16 unsigned long long __dummy; 17 18 if (flags == ARCH_IRQ_DISABLED) { 19 __asm__ __volatile__ ( 20 "getcon " __SR ", %0\n\t" 21 "or %0, %1, %0\n\t" 22 "putcon %0, " __SR "\n\t" 23 : "=&r" (__dummy) 24 : "r" (ARCH_IRQ_DISABLED) 25 ); 26 } else { 27 __asm__ __volatile__ ( 28 "getcon " __SR ", %0\n\t" 29 "and %0, %1, %0\n\t" 30 "putcon %0, " __SR "\n\t" 31 : "=&r" (__dummy) 32 : "r" (~ARCH_IRQ_DISABLED) 33 ); 34 } 35} 36EXPORT_SYMBOL(arch_local_irq_restore); 37 38unsigned long notrace arch_local_save_flags(void) 39{ 40 unsigned long flags; 41 42 __asm__ __volatile__ ( 43 "getcon " __SR ", %0\n\t" 44 "and %0, %1, %0" 45 : "=&r" (flags) 46 : "r" (ARCH_IRQ_DISABLED) 47 ); 48 49 return flags; 50} 51EXPORT_SYMBOL(arch_local_save_flags); 52