Messages in this thread | | | Subject | Re: [PATCH] 2.6.18-rt7: PowerPC: fix breakage in threaded fasteoi type IRQ handlers | From | Benjamin Herrenschmidt <> | Date | Mon, 20 Nov 2006 07:48:09 +1100 |
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> Sorry, it's the same for x86 version of OpenPIC according to spec. I meant > the PPC implementation here.
Same OpenPIC.. it can deal with both INTACK cycles and reading from an INTACK register. On some PPC's, we actually have logic in the bridge to generate the INTACK cycle (which exist on PCI) though we only use that with 8259's currently as it's not really more efficient than just reading from the INTACK register of the OpenPIC.
Ben.
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