From 772c3ff385eda0d0b4744596f87b79a17f8c9282 Mon Sep 17 00:00:00 2001 From: Daniel J Blueman Date: Tue, 27 Nov 2012 14:32:09 +0800 Subject: x86, AMD, NB: Add multi-domain support Fix get_node_id to match northbridge IDs from the array of detected ones, allowing multi-server support such as with Numascale's NumaConnect, renaming to 'amd_get_node_id' for consistency. Signed-off-by: Daniel J Blueman Link: http://lkml.kernel.org/r/1353997932-8475-1-git-send-email-daniel@numascale-asia.com [Boris: shorten lines to fit 80 cols] Signed-off-by: Borislav Petkov --- arch/x86/include/asm/amd_nb.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'arch/x86/include/asm/amd_nb.h') diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h index b3341e9cd8fd..a54ee1d054d9 100644 --- a/arch/x86/include/asm/amd_nb.h +++ b/arch/x86/include/asm/amd_nb.h @@ -81,6 +81,23 @@ static inline struct amd_northbridge *node_to_amd_nb(int node) return (node < amd_northbridges.num) ? &amd_northbridges.nb[node] : NULL; } +static inline u16 amd_get_node_id(struct pci_dev *pdev) +{ + struct pci_dev *misc; + int i; + + for (i = 0; i != amd_nb_num(); i++) { + misc = node_to_amd_nb(i)->misc; + + if (pci_domain_nr(misc->bus) == pci_domain_nr(pdev->bus) && + PCI_SLOT(misc->devfn) == PCI_SLOT(pdev->devfn)) + return i; + } + + WARN(1, "Unable to find AMD Northbridge id for %s\n", pci_name(pdev)); + return 0; +} + #else #define amd_nb_num(x) 0 -- cgit v1.2.1