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https://github.com/torvalds/linux
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3e57615bb5
This is a revised patch to merge asm-ppc*/hardirq.h. It removes some unnecessary #includes, but then requires the addition of #include <asm/irq.h> in PPC32's hw_irq.h much like ppc64 already does. Furthermore, several unnecessary #includes were removed from some ppc32 boards in order to break resulting bad #include cycles. Builds pSeries_defconfig and all ppc32 platforms except the already b0rken bseip. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*
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* Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
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*/
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#ifdef __KERNEL__
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#ifndef _PPC_HW_IRQ_H
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#define _PPC_HW_IRQ_H
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#include <asm/ptrace.h>
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#include <asm/reg.h>
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#include <asm/irq.h>
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extern void timer_interrupt(struct pt_regs *);
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#define irqs_disabled() ((mfmsr() & MSR_EE) == 0)
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static inline void local_irq_disable(void)
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{
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unsigned long msr;
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msr = mfmsr();
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mtmsr(msr & ~MSR_EE);
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__asm__ __volatile__("": : :"memory");
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}
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static inline void local_irq_enable(void)
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{
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unsigned long msr;
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__asm__ __volatile__("": : :"memory");
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msr = mfmsr();
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mtmsr(msr | MSR_EE);
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}
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static inline void local_irq_save_ptr(unsigned long *flags)
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{
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unsigned long msr;
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msr = mfmsr();
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*flags = msr;
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mtmsr(msr & ~MSR_EE);
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__asm__ __volatile__("": : :"memory");
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}
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#define local_save_flags(flags) ((flags) = mfmsr())
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#define local_irq_save(flags) local_irq_save_ptr(&flags)
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#define local_irq_restore(flags) mtmsr(flags)
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extern void do_lost_interrupts(unsigned long);
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#define mask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->disable) irq_desc[irq].handler->disable(irq);})
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#define unmask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->enable) irq_desc[irq].handler->enable(irq);})
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#define ack_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->ack) irq_desc[irq].handler->ack(irq);})
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/* Should we handle this via lost interrupts and IPIs or should we don't care like
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* we do now ? --BenH.
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*/
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struct hw_interrupt_type;
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static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i) {}
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#endif /* _PPC_HW_IRQ_H */
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#endif /* __KERNEL__ */
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