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hw_irq.h
Package: linux-2.4.20.tar.gz [view]
Upload User: jlfgdled
Upload Date: 2013-04-10
Package Size: 33168k
Code Size: 2k
Category:
Linux-Unix program
Development Platform:
Unix_Linux
- /*
- * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
- *
- * Use inline IRQs where possible - Anton Blanchard <anton@au.ibm.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
- #ifdef __KERNEL__
- #ifndef _PPC64_HW_IRQ_H
- #define _PPC64_HW_IRQ_H
- #include <linux/config.h>
- #include <asm/irq.h>
- int timer_interrupt(struct pt_regs *);
- #ifdef CONFIG_PPC_ISERIES
- extern void __no_use_sti(void);
- extern void __no_use_cli(void);
- extern void __no_use_restore_flags(unsigned long);
- extern unsigned long __no_use_save_flags(void);
- extern void __no_use_set_lost(unsigned long);
- extern void __no_lpq_restore_flags(unsigned long);
- #define __cli() __no_use_cli()
- #define __sti() __no_use_sti()
- #define __save_flags(flags) ((flags) = __no_use_save_flags())
- #define __restore_flags(flags) __no_use_restore_flags((unsigned long)flags)
- #define __save_and_cli(flags) ({__save_flags(flags);__cli();})
- #else
- #define __save_flags(flags) ((flags) = mfmsr())
- #define __restore_flags(flags) mtmsrd(flags)
- static inline void __cli(void)
- {
- unsigned long msr;
- msr = mfmsr();
- mtmsrd(msr & ~MSR_EE);
- __asm__ __volatile__("": : :"memory");
- }
- static inline void __sti(void)
- {
- unsigned long msr;
- __asm__ __volatile__("": : :"memory");
- msr = mfmsr();
- mtmsrd(msr | MSR_EE);
- }
- static inline void __do_save_and_cli(unsigned long *flags)
- {
- unsigned long msr;
- msr = mfmsr();
- *flags = msr;
- mtmsrd(msr & ~MSR_EE);
- __asm__ __volatile__("": : :"memory");
- }
- #define __save_and_cli(flags) __do_save_and_cli(&flags)
- #endif /* CONFIG_PPC_ISERIES */
- #define mask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->disable) irq_desc[irq].handler->disable(irq);})
- #define unmask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->enable) irq_desc[irq].handler->enable(irq);})
- #define ack_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->ack) irq_desc[irq].handler->ack(irq);})
- /* Should we handle this via lost interrupts and IPIs or should we don't care like
- * we do now ? --BenH.
- */
- struct hw_interrupt_type;
- static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i) {}
- #endif /* _PPC64_HW_IRQ_H */
- #endif /* __KERNEL__ */