Messages in this thread | | | From | David Mosberger <> | Date | Thu, 9 Jan 2003 10:36:58 -0800 | Subject | Re: [patch 2.5] 2-pass PCI probing, generic part |
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>>>>> On Thu, 9 Jan 2003 20:46:26 +0300, Ivan Kokshaysky <ink@jurassic.park.msu.ru> said:
Ivan> As discussed, this patch splits PCI probing into 2 phases. Ivan> 1. Do the full bus enumeration, collect identification info for Ivan> all devices, call early fixup routines. At this stage we Ivan> can solve two kinds of problems: Ivan> - turn off devices generating PCI traffic, so we'll be Ivan> safe in the phase 2 (USB DMA case); Ivan> - allow alternative probing methods for devices that Ivan> cannot be safely probed by generic code (powermac I/O ASIC). Ivan> 2. Sizing the BARs. Now it's possible to disable the device Ivan> being probed, which should fix ia64 case. Note that we Ivan> don't need to keep the device disabled when sizing ROM Ivan> base register, as we probe with ROM-enable bit cleared.
Sounds good (haven't tested the code yet, but it looks fine to me).
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