LKML Archive on
help / color / mirror / Atom feed
From: Benjamin Herrenschmidt <>
To: Yinghai Lu <>
Cc: Alexey Dobriyan <>,
Subject: Re: tg3 broken after "PCI: Fix bus resource assignment on 32 bits with 64b resources"
Date: Wed, 06 Feb 2008 07:49:52 +1100	[thread overview]
Message-ID: <1202244592.7079.68.camel@pasglop> (raw)
In-Reply-To: <>

> so x86_64 will work well?
> the problem is that BIOS does not assign one resource for you tg3. and
> kernel pcibios_assign_to_unassign (?) try
> to assign resource to your card.

But the kernel shouldn't try to assign a resource in the 64 bits space
to a card behind a bridge... at least not a non-prefetchable resource
since those can't be forwarded (P2P bridges only define a 32 bits window
for non-prefetchable resources).

So it does look to me like the kernel may be doing something wrong. I
haven't had a chance to look at the logs in details yet (just woke up).

> revert the patch happen to work, you only have 2g less RAM (?), so
> 0x8000000 still can be used.
> sometime you could get hang if your MB have two HT chains. ...because
> BIOS already allocate two io range for the two chain.
> and kernel may assign resource from the range1 belong to HT1 to device
> under HT0.
> solution: need pci root bios to provide _CRS to replace...
> and i have one patch but it only take care of 64 bit kernel for this case.
> easy solution for you: try to get one updated BIOS.

  reply	other threads:[~2008-02-05 20:51 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-04 15:12 Alexey Dobriyan
2008-02-04 21:54 ` Benjamin Herrenschmidt
2008-02-05  9:17   ` Alexey Dobriyan
2008-02-05 10:07     ` Yinghai Lu
2008-02-05 20:49       ` Benjamin Herrenschmidt [this message]
2008-02-06 10:05         ` Alexey Dobriyan
2008-02-06 10:40           ` Yinghai Lu
2008-02-06 21:15           ` Benjamin Herrenschmidt
2008-02-07 10:07             ` Alexey Dobriyan
2008-02-06  1:05     ` Benjamin Herrenschmidt
2008-02-04 21:57 ` Benjamin Herrenschmidt
2008-02-04 21:59 ` Benjamin Herrenschmidt
2008-02-13 22:52 ` Rafael J. Wysocki
2008-02-13 23:01   ` Benjamin Herrenschmidt
2008-02-13 23:03   ` Alexey Dobriyan
2008-02-13 23:06     ` Rafael J. Wysocki

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1202244592.7079.68.camel@pasglop \ \ \ \ \
    --subject='Re: tg3 broken after "PCI: Fix bus resource assignment on 32 bits with 64b resources"' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).