Messages in this thread | | | Date | Mon, 30 Nov 2009 22:23:46 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: Get rid of IRQF_DISABLED - (was [PATCH] genirq: warn about IRQF_SHARED|IRQF_DISABLED) |
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On Mon, 30 Nov 2009, Uwe Kleine-König wrote: > I think there is > > 3) you can only benefit from decent priority hardware if irqs are > processed while irqs are enabled. > > I think > > git grep handle_fasteoi_irq > > gives an overview here: some hits in arch/powerpc, arch/sparc and > arch/x86/kernel/apic/io_apic.c. (There is handle_prio_irq in
No. That handler is not an indicator for prio hardware actively used in the sense of allowing higher prio interrupts to interrupt a current running lower priority one. It can be used when the irq controller does not fire the interrupt again before the eoi acknowledge has been done.
Thanks,
tglx | |