1/* 2 * include/asm-s390/softirq.h 3 * 4 * S390 version 5 * 6 * Derived from "include/asm-i386/softirq.h" 7 */ 8 9#ifndef __ASM_SOFTIRQ_H 10#define __ASM_SOFTIRQ_H 11 12#ifndef __LINUX_SMP_H 13#include <linux/smp.h> 14#endif 15 16#include <asm/atomic.h> 17#include <asm/hardirq.h> 18#include <asm/lowcore.h> 19 20#define __cpu_bh_enable(cpu) \ 21 do { barrier(); local_bh_count(cpu)--; } while (0) 22#define cpu_bh_disable(cpu) \ 23 do { local_bh_count(cpu)++; barrier(); } while (0) 24 25#define local_bh_disable() cpu_bh_disable(smp_processor_id()) 26#define __local_bh_enable() __cpu_bh_enable(smp_processor_id()) 27 28#define in_softirq() (local_bh_count(smp_processor_id()) != 0) 29 30extern void do_call_softirq(void); 31 32#define local_bh_enable() \ 33do { \ 34 unsigned int *ptr = &local_bh_count(smp_processor_id()); \ 35 barrier(); \ 36 if (!--*ptr) \ 37 if (softirq_pending(smp_processor_id())) \ 38 /* Use the async. stack for softirq */ \ 39 do_call_softirq(); \ 40} while (0) 41 42#endif /* __ASM_SOFTIRQ_H */ 43 44 45 46 47 48 49 50