Messages in this thread | | | Date | Wed, 17 Jan 2018 10:33:36 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH] irqdomain: provide useful debugging information for irq domain |
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On Wed, 17 Jan 2018, Yang, Shunyong wrote:
> Hi, Marc and Thomas, > > Thanks for your feedback. > > On Wed, 2018-01-17 at 10:18 +0100, Thomas Gleixner wrote: > > On Wed, 17 Jan 2018, Marc Zyngier wrote: > > > > > > In all honesty, I'd be more inclined to remove this debug feature > > > altogether, as CONFIG_GENERIC_IRQ_DEBUGFS is more complete and more > > > useful. Is there any feature missing from that infrastructure that > > > prevents you from using it instead? > > > > > > If the answer is "none", then I'll post a patch removing it. > > Wanted to do that quite some time ago and never came around to it. > > I think they have different purpose. > irq_domain_mapping is an overiew of the mapping of each virq to hwirq > and the domain it belongs. It likes a map or index of each IRQs. I tend > to suggest to keep it.
And how is that different from:
> The nodes under debugfs irq/irqs describes information of every single > irq.
Not at all. It contains the complete hierarchical information of each virq.
Thanks,
tglx
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