1 /* 2 * include/asm-s390/hardirq.h 3 * 4 * S390 version 5 * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation 6 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), 7 * Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) 8 * 9 * Derived from "include/asm-i386/hardirq.h" 10 */ 11 12 #ifndef __ASM_HARDIRQ_H 13 #define __ASM_HARDIRQ_H 14 15 #include <linux/threads.h> 16 #include <linux/sched.h> 17 #include <linux/cache.h> 18 #include <linux/interrupt.h> 19 #include <asm/lowcore.h> 20 21 /* irq_cpustat_t is unused currently, but could be converted 22 * into a percpu variable instead of storing softirq_pending 23 * on the lowcore */ 24 typedef struct { 25 unsigned int __softirq_pending; 26 } irq_cpustat_t; 27 28 #define local_softirq_pending() (S390_lowcore.softirq_pending) 29 30 #define __ARCH_IRQ_STAT 31 #define __ARCH_HAS_DO_SOFTIRQ 32 33 #define HARDIRQ_BITS 8 34 35 void clock_comparator_work(void); 36 37 static inline unsigned long long local_tick_disable(void) 38 { 39 unsigned long long old; 40 41 old = S390_lowcore.clock_comparator; 42 S390_lowcore.clock_comparator = -1ULL; 43 return old; 44 } 45 46 static inline void local_tick_enable(unsigned long long comp) 47 { 48 S390_lowcore.clock_comparator = comp; 49 } 50 51 #endif /* __ASM_HARDIRQ_H */ 52