From 6a0eec8224db1191876770f7cac31f2a2637a6f5 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 18 Aug 2008 03:25:24 -0400 Subject: x86, um: get rid of system.h -> system.h include Long-term we want to split system.h and include barriers part from underlying target; for now copy that part to sysdep. Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin --- arch/um/include/asm/system.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 arch/um/include/asm/system.h (limited to 'arch/um/include/asm/system.h') diff --git a/arch/um/include/asm/system.h b/arch/um/include/asm/system.h new file mode 100644 index 000000000000..753346e2cdfd --- /dev/null +++ b/arch/um/include/asm/system.h @@ -0,0 +1,35 @@ +#ifndef __UM_SYSTEM_GENERIC_H +#define __UM_SYSTEM_GENERIC_H + +#include "sysdep/system.h" + +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 { typecheck(unsigned long, flags); \ + (flags) = get_signals(); } while(0) +#define local_irq_restore(flags) do { typecheck(unsigned long, flags); \ + 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); \ +}) + +extern void *_switch_to(void *prev, void *next, void *last); +#define switch_to(prev, next, last) prev = _switch_to(prev, next, last) + +#endif -- cgit v1.2.3-59-g8ed1b