This is a note to let you know that I've just added the patch titled
x86/amd/numa: Fix northbridge quirk to assign correct NUMA node
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-amd-numa-fix-northbridge-quirk-to-assign-correct-numa-node.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 847d7970defb45540735b3fb4e88471c27cacd85 Mon Sep 17 00:00:00 2001
From: Daniel J Blueman <daniel@xxxxxxxxxxxxx>
Date: Thu, 13 Mar 2014 19:43:01 +0800
Subject: x86/amd/numa: Fix northbridge quirk to assign correct NUMA node
From: Daniel J Blueman <daniel@xxxxxxxxxxxxx>
commit 847d7970defb45540735b3fb4e88471c27cacd85 upstream.
For systems with multiple servers and routed fabric, all
northbridges get assigned to the first server. Fix this by also
using the node reported from the PCI bus. For single-fabric
systems, the northbriges are on PCI bus 0 by definition, which
are on NUMA node 0 by definition, so this is invarient on most
systems.
Tested on fam10h and fam15h single and multi-fabric systems and
candidate for stable.
Signed-off-by: Daniel J Blueman <daniel@xxxxxxxxxxxxx>
Acked-by: Steffen Persvold <sp@xxxxxxxxxxxxx>
Acked-by: Borislav Petkov <bp@xxxxxxx>
Link: http://lkml.kernel.org/r/1394710981-3596-1-git-send-email-daniel@xxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/quirks.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -525,7 +525,7 @@ static void __init quirk_amd_nb_node(str
return;
pci_read_config_dword(nb_ht, 0x60, &val);
- node = val & 7;
+ node = pcibus_to_node(dev->bus) | (val & 7);
/*
* Some hardware may return an invalid node ID,
* so check it first:
Patches currently in stable-queue which might be from daniel@xxxxxxxxxxxxx are
queue-3.4/x86-amd-numa-fix-northbridge-quirk-to-assign-correct-numa-node.patch
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