[BACK]Return to system-generic.h CVS log [TXT][DIR] Up to [Development] / linux-2.6-xfs / include / asm-um
File: [Development] / linux-2.6-xfs / include / asm-um / system-generic.h (download)

Revision 1.1, Tue Dec 30 23:58:53 2003 UTC (13 years, 10 months ago) by cattelan
Branch: MAIN 

Initial Import 2.6.0

#ifndef __UM_SYSTEM_GENERIC_H
#define __UM_SYSTEM_GENERIC_H

#include "asm/arch/system.h"

#undef switch_to
#undef local_irq_save
#undef local_irq_restore
#undef local_irq_disable
#undef local_irq_enable
#undef local_save_flags
#undef local_irq_restore
#undef local_irq_enable
#undef local_irq_disable
#undef local_irq_save
#undef irqs_disabled

extern void *switch_to(void *prev, void *next, void *last);

extern int get_signals(void);
extern int set_signals(int enable);
extern int get_signals(void);
extern void block_signals(void);
extern void unblock_signals(void);

#define local_save_flags(flags) do { (flags) = get_signals(); } while(0)
#define local_irq_restore(flags) do { set_signals(flags); } while(0)

#define local_irq_save(flags) do { local_save_flags(flags); \
                                   local_irq_disable(); } while(0)

#define local_irq_enable() unblock_signals()
#define local_irq_disable() block_signals()

#define irqs_disabled()                 \
({                                      \
        unsigned long flags;            \
        local_save_flags(flags);        \
        (flags == 0);                   \
})

#endif