[Barrelfish-users] Details regarding pci support with acpi

[hilfi alkaff]

I seee. Do you know whether it's possible to use pure acpi functions only
w/o reading the conf space manually? I'm just wondering how much could I
acpi-ed my kernel

Hilfi Alkaff

On Mon, Aug 15, 2011 at 11:42 AM, Timothy Roscoe <troscoe at inf.ethz.ch>wrote:

>
> Hilfi,
>
> We do low-level PCI reads/writes to configuration space just like
> everyone else does - the only difference is the use of the Mackerel
> DSL to specify register formats.  pci_hdr1.dev is a Mackerel
> specification of the PCI type 1 (bridge) header; the format is
> documented in the Mackerel manual (Technical note #2).   If you read
> that documentation, plus the pci_hdr1.dev file, you'll see that
> pci_hdr1_vendor_id_rd() is the function to read the vendor id field of
> a PCI config header.
>
>  -- Mothy
>
> At Mon, 15 Aug 2011 11:03:41 -0700, hilfi alkaff <hilfialkaff at berkeley.edu>
> wrote:
> > Hi,
> >
> > I have some follow up questions regarding the same topic. how do you guys
> > read the device ID, vendor ID of the pci? I see this function
> > pci_hdr1_vendor_id_rd() but I don't really understand about the .dev file
> > format. Do you guys read from the pci conf headers or using acpi
> commands?
> >
> > Thanks,
> > Hilfi Alkaff
> >
> > On Thu, Aug 4, 2011 at 5:01 PM, hilfi alkaff <hilfialkaff at berkeley.edu
> >wrote:
> >
> > > Oh, of course, how I did not realize that, >.<,, Thanks!
> > >
> > > Hilfi Alkaff
> > >
> > >
> > > On Thu, Aug 4, 2011 at 4:16 PM, Baumann Andrew <andrewb at inf.ethz.ch
> >wrote:
> > >
> > >>  Hi,****
> > >>
> > >> ** **
> > >>
> > >> I’m not sure what you mean by this, since pci_add_root() is a function
> in
> > >> Barrelfish and not ACPICA, but the general answer to your question is
> > >> probably that you can’t use the ACPICA reference in isolation: you
> also need
> > >> to grok parts of the PCI spec (or just the bad Mindshare books), the
> ACPI
> > >> spec, the PNPBIOS spec (mainly just for the device IDs), and if in
> doubt
> > >> also the source code to something clean like FreeBSD to make sense of
> it
> > >> all.****
> > >>
> > >> ** **
> > >>
> > >> Good luck :)****
> > >>
> > >> ** **
> > >>
> > >> Andrew****
> > >>
> > >> ** **
> > >>
> > >> *From:* hilfi alkaff [mailto:hilfialkaff at berkeley.edu]
> > >> *Sent:* Thursday, 04 August, 2011 15:47
> > >> *To:* barrelfish-users at lists.inf.ethz.ch
> > >> *Subject:* [Barrelfish-users] Details regarding pci support with
> acpi****
> > >>
> > >> ** **
> > >>
> > >> Hi,
> > >>
> > >> I'm an undergraduate currently working on a research operating system
> and
> > >> I'm having problems when initializing pci and mapping its interrupts
> with
> > >> ACPI. I'm wondering how do you guys figure out the pci_add_root()
> function
> > >> because I could not find any meaningful details in Intel's acpica
> reference.
> > >>
> > >> Thanks,
> > >> Hilfi Alkaff****
> > >>
> > >
> > >
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://lists.inf.ethz.ch/pipermail/barrelfish-users/attachments/20110815/489a5003/attachment.html