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authorDaniel J Blueman <daniel@numascale.com>2014-03-13 19:43:01 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-03-23 21:44:08 -0700
commit06d38fdaac851499908c9fac4c69c4bf14d47126 (patch)
tree8bdce11c9841232b8227dbeef847442bf5b1010b /arch
parenta6ea2faeff2d839b2ad1f8e9921d02e502669c69 (diff)
x86/amd/numa: Fix northbridge quirk to assign correct NUMA node
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@numascale.com> Acked-by: Steffen Persvold <sp@numascale.com> Acked-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/1394710981-3596-1-git-send-email-daniel@numascale.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/quirks.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 04ee1e2e4c0..52dbf1e400d 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -529,7 +529,7 @@ static void quirk_amd_nb_node(struct pci_dev *dev)
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: