Messages in this thread | | | Date | Thu, 18 Oct 2007 03:19:57 -0700 (PDT) | Subject | Re: [patch] PCI: disable MSI on more ATI NorthBridges | From | David Miller <> |
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From: "Shane Huang" <Shane.Huang@amd.com> Date: Thu, 18 Oct 2007 17:14:36 +0800
> More ATI North Bridges like RS780 can't do MSI like its predecessors > in linux. Disable MSIs on them. > > Signed-off-by: Shane Huang <shane.huang@amd.com>
Can we get some detail as to why these north bridges have to have MSI disabled completely? I can't believe that all 6 of these ATI controllers which will now be listed in the quirk table cannot use MSI at all.
I've discovered several cases where it was a buggy device or a driver bug that caused someone to erroneously submit patches that disable MSI completely for the bridge they were behind.
I don't want that to happen any more. One way to prevent that is to have a full detailed justification for the MSI disabling in the changelog or in the comments for the MSI quirk.
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