Messages in this thread | | | Date | Fri, 19 Oct 2007 14:57:49 -0500 | Subject | Re: [patch] PCI: disable MSI on more ATI NorthBridges | From | (Linas Vepstas) |
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On Fri, Oct 19, 2007 at 09:17:23PM +0800, Shane Huang wrote: > Since we have little experience on PCI and MSI here, we had to try to
As someone else pointed out, AMD should have *lots* of people with pci and msi experience on the payroll. (Folks here buy AMD-designed pci chips ...)
> ONLY > comment out the pci_intx() call in drivers/ata/ahci.c > My system can boot up too with MSI enabled! > > So does it mean that the root cause is our SB700 SATA controller > has a hardware bug where setting INTX_DISABLE in the PCI COMMAND > register masks MSI interrupts too?
That's what it sounds like, to me.
> And what is the software solution or workaround?
Not sure. Sounds like the device driver needs a quirk for this part.
The over-worked Jeff Garzik is the maintainer for that driver.
You should probably provide the pci device id for this beast.
--linas
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