Messages in this thread | | | Subject | RE: [PATCH 0/7] more HPET fixes and enhancements | Date | Wed, 19 Oct 2005 08:08:02 -0700 | From | "Pallipadi, Venkatesh" <> |
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>-----Original Message----- >From: linux-kernel-owner@vger.kernel.org >[mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of >Clemens Ladisch >Sent: Wednesday, October 19, 2005 6:49 AM >To: Randy.Dunlap >Cc: linux-kernel@vger.kernel.org >Subject: Re: [PATCH 0/7] more HPET fixes and enhancements > >I wrote: >> This means that hpet.c must initialize the interrupt routing register >> in this case. I'll write a patch for this. > >Okay, this is a quick hack, untested. It just tries to set the first >interrupt that the timer could use. >
You will need more changes to make interrupt work. Especially if the particular IRQ that you are using here is not used by any other PCI device in the system. Then BIOS won't report anything on that IRQ and all the things done in setup_IO_APIC_irqs() should be done for this particular IRQ. And it will depend on whether IOAPIC/PIC is ised for interrupts and such things as well. Atleast that what I remember from last time I got HPET to work with IRQs other than IRQ0 and IRQ8.
Thanks, Venki
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