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* x86/PCI: MMCONFIG: add lookup functionBjorn Helgaas2009-11-24
| | | | | | | | | | This patch factors out the search for an MMCONFIG region, which was previously implemented in both mmconfig_32 and mmconfig_64. No functional change. Reviewed-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* x86/PCI: MMCONFIG: manage pci_mmcfg_region as a list, not a tableBjorn Helgaas2009-11-24
| | | | | | | | | This changes pci_mmcfg_region from a table to a list, to make it easier to add and remove MMCONFIG regions for PCI host bridge hotplug. Reviewed-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* x86/PCI: MMCONFIG: add virtual address to struct pci_mmcfg_regionBjorn Helgaas2009-11-24
| | | | | | | | | | The virtual address is only used for x86_64, but it's so much simpler to manage it as part of the pci_mmcfg_region that I think it's worth wasting a pointer per MMCONFIG region on x86_32. Reviewed-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* x86/PCI: MMCONFIG: add resource to struct pci_mmcfg_regionBjorn Helgaas2009-11-24
| | | | | | | | | | | | | This patch adds a resource and corresponding name to the MMCONFIG structure. This makes allocation simpler (we can allocate the resource and name at the same time we allocate the pci_mmcfg_region), and gives us a way to hang onto the resource after inserting it. This will be needed so we can release and free it when hot-removing a host bridge. Reviewed-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* x86/PCI: MMCONFIG: rename pci_mmcfg_region structure membersBjorn Helgaas2009-11-24
| | | | | | | | This only renames the struct pci_mmcfg_region members; no functional change. Reviewed-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* x86/PCI: MMCONFIG: use a private structure rather than the ACPI MCFG oneBjorn Helgaas2009-11-24
| | | | | | | | | | | | | This adds a struct pci_mmcfg_region with a little more information than the struct acpi_mcfg_allocation used previously. The acpi_mcfg structure is defined by the spec, so we can't change it. To begin with, struct pci_mmcfg_region is basically the same as the ACPI MCFG version, but future patches will add more information. Reviewed-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* x86/PCI: MMCONFIG: add PCI_MMCFG_BUS_OFFSET() to factor common expressionBjorn Helgaas2009-11-24
| | | | | | | | | This factors out the common "bus << 20" expression used when computing the MMCONFIG address. Reviewed-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* Revert "PCI: use ACPI _CRS data by default"Linus Torvalds2009-06-24
| | | | | | | | | | | | | | This reverts commit 9e9f46c44e487af0a82eb61b624553e2f7118f5b. Quoting from the commit message: "At this point, it seems to solve more problems than it causes, so let's try using it by default. It's an easy revert if it ends up causing trouble." And guess what? The _CRS code causes trouble. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
*-. Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', ↵Len Brown2009-06-24
|\ \ | | | | | | | | | 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release
| | * ACPI, PCI, x86: move MCFG parsing routine from ACPI to PCI fileLen Brown2009-06-12
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move arch/x86/kernel/acpi/boot.c: acpi_parse_mcfg() to arch/x86/pci/mmconfig-shared.c: pci_parse_mcfg() where it is used, and make it static. Move associated globals and helper routine with it. No functional change. This code move is in preparation for SFI support, which will allow the PCI code to find the MCFG table on systems which do not support ACPI. Signed-off-by: Len Brown <len.brown@intel.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* / PCI: use ACPI _CRS data by defaultJesse Barnes2009-06-11
|/ | | | | | | | At this point, it seems to solve more problems than it causes, so let's try using it by default. It's an easy revert if it ends up causing trouble. Reviewed-by: Yinghai Lu <yhlu.kernel@gmail.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* x86, pci: move arch/x86/pci/pci.h to arch/x86/include/asm/pci_x86.hJaswinder Singh Rajput2008-12-29
Impact: cleanup Now that arch/x86/pci/pci.h is used in a number of other places as well, move the lowlevel x86 pci definitions into the architecture include files. (not to be confused with the existing arch/x86/include/asm/pci.h file, which provides public details about x86 PCI) Tested on: X86_32_UP, X86_32_SMP and X86_64_SMP Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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