linux/arch/x86/pci
Suravee Suthikulpanit 94d4bb5b13 x86/PCI: Work around AMD Fam15h BIOSes that fail to provide _PXM
The BIOS is supposed to provide ACPI _PXM methods for PCI host bridges if
it cares about platform topology.  But some BIOSes do not, so add Fam15h
to the list of CPUs for which we fall back to reading node numbers from the
hardware.

Note that pci_acpi_scan_root() warns about the BIOS bug if we use this
information because (1) the hardware node numbers are not necessarily
compatible with other logical node numbers from ACPI, and (2) the lack of
_PXM forces OS updates that would not otherwise be required.

[bhelgaas: changelog, comments]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=72051
Tested-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Robert Richter <rric@kernel.org>
Cc: Daniel J Blueman <daniel@numascale.com>
Cc: Andreas Herrmann <herrmann.der.user@googlemail.com>
2014-05-21 12:34:01 -06:00
..
acpi.c x86/PCI: Warn if we have to "guess" host bridge node information 2014-05-21 12:32:16 -06:00
amd_bus.c x86/PCI: Work around AMD Fam15h BIOSes that fail to provide _PXM 2014-05-21 12:34:01 -06:00
broadcom_bus.c x86/PCI: dynamically allocate pci_root_info for native host bridge drivers 2012-04-30 14:52:43 -06:00
bus_numa.c x86/PCI: Remove unnecessary list_empty(&pci_root_infos) check 2014-02-03 10:38:52 -07:00
bus_numa.h x86/PCI: put busn resource in pci_root_info for native host bridge drivers 2012-06-13 15:42:24 -06:00
ce4100.c x86/ce4100: Fix PCI configuration register access for devices without interrupts 2012-10-30 10:16:47 +01:00
common.c Merge branch 'x86-nuke-platforms-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-02 13:15:58 -07:00
direct.c x86: constify PCI raw ops structures 2011-10-14 09:05:28 -07:00
early.c x86/PCI: remove early PCI pr_debug statements 2009-11-24 15:25:19 -08:00
fixup.c Merge branch 'pci/misc' into next 2014-02-18 17:02:04 -07:00
i386.c x86 / PCI: prevent re-allocation of already existing bridge and ROM resources 2013-07-23 03:55:56 +02:00
init.c x86, olpc: Use pci subarch init for OLPC 2010-02-25 19:26:23 -08:00
intel_mid_pci.c x86, intel-mid: Add Merrifield platform support 2014-01-15 14:38:58 -08:00
irq.c x86/PCI: Drop return value of pcibios_scan_root() 2014-02-03 10:38:29 -07:00
legacy.c x86/PCI: Use pcibios_scan_root() instead of pci_scan_bus_on_node() 2014-02-03 10:38:18 -07:00
Makefile x86, platforms: Remove NUMAQ 2014-02-27 08:07:39 -08:00
mmconfig_32.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
mmconfig_64.c X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
mmconfig-shared.c SFI / ACPI: Fix warnings reported during builds with W=1 2013-12-07 01:24:33 +01:00
numachip.c x86/PCI: Add NumaChip remote PCI support 2012-12-07 14:24:32 -07:00
olpc.c x86: constify PCI raw ops structures 2011-10-14 09:05:28 -07:00
pcbios.c X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
sta2x11-fixup.c x86, platform: Initial support for sta2x11 I/O hub 2012-04-12 11:10:30 -07:00
xen.c xen: add support for MSI message groups 2014-03-18 14:40:09 +00:00