BMC/Intel-BMC/linux.git/arch/sparc/kernel/leon_pci.c, branch dev

PCI: Cleanup control flow

2015-03-19T15:17:22+00:00

Return errors immediately so the straightline path is the normal, no-error path. No functional change. Signed-off-by: Bjorn Helgaas

PCI: Assign resources before drivers claim devices (pci_scan_root_bus())

2015-03-19T15:17:13+00:00

Previously, pci_scan_root_bus() created a root PCI bus, enumerated the devices on it, and called pci_bus_add_devices(), which made the devices available for drivers to claim them. Most callers assigned resources to devices after pci_scan_root_bus() returns, which may be after drivers have claimed the devices. This is incorrect; the PCI core should not change device resources while a driver is managing the device. Remove pci_bus_add_devices() from pci_scan_root_bus() and do it after any resource assignment in the callers. Note that ARM's pci_common_init_dev() already called pci_bus_add_devices() after pci_scan_root_bus(), so we only need to remove the first call: pci_common_init_dev pcibios_init_hw pci_scan_root_bus pci_bus_add_devices # first call pci_bus_assign_resources pci_bus_add_devices # second call [bhelgaas: changelog, drop "root_bus" var in alpha common_init_pci(), return failure earlier in mn10300, add "return" in x86 pcibios_scan_root(), return early if xtensa platform_pcibios_fixup() fails] Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas CC: Richard Henderson CC: Ivan Kokshaysky CC: Matt Turner CC: David Howells CC: Tony Luck CC: Michal Simek CC: Ralf Baechle CC: Koichi Yasutake CC: Sebastian Ott CC: "David S. Miller" CC: Chris Metcalf CC: Chris Zankel CC: Max Filippov CC: Thomas Gleixner

sparc32: introduce asm-generic/io.h

2014-05-02T05:30:21+00:00

Use asm-generic/io.h definitions where applicable. The inxx() and outxx() methods whcih was duplicated in pcic.c + leon_pci.c are replaced by a set of static inlins from asm-generic/io.h iomap.c is replaced by the generic versions, but are still present to support sparc64. Signed-off-by: Sam Ravnborg Cc: Daniel Hellstrom Signed-off-by: David S. Miller

sparc/PCI: Use default pcibios_enable_device() (Leon only)

2014-03-19T21:00:15+00:00

We don't need anything arch-specific in pcibios_enable_device() so drop the arch implementation and use the default generic one. Note that sparc has two pcibios_enable_device() implementations other than the one removed here. Signed-off-by: Bjorn Helgaas CC: Daniel Hellstrom

sparc32,leon: add support for PCI busn resource for GRPCI2

2013-03-20T18:06:53+00:00

Signed-off-by: Daniel Hellstrom Signed-off-by: David S. Miller

SPARC: drivers: remove __dev* attributes.

2013-01-03T23:57:04+00:00

CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton Cc: "David S. Miller" Signed-off-by: Greg Kroah-Hartman

PCI: Provide a default pcibios_update_irq()

2012-09-18T23:28:21+00:00

Most architectures implement this in exactly the same way. Instead of having each architecture duplicate this function, provide a single implementation in the core and make it a weak symbol so that it can be overridden on architectures where it is required. Signed-off-by: Thierry Reding Signed-off-by: Bjorn Helgaas

PCI: Discard __init annotations for pci_fixup_irqs() and related functions

2012-09-18T23:22:25+00:00

Remove the __init annotations in order to keep pci_fixup_irqs() around after init (e.g. for hotplug). This requires the same change for the implementation of pcibios_update_irq() on all architectures. While at it, all __devinit annotations are removed as well, since they will be useless now that HOTPLUG is always on. Signed-off-by: Thierry Reding Signed-off-by: Bjorn Helgaas Acked-by: Greg Kroah-Hartman

sparc/PCI: factor out pcibios_setup()

2012-07-05T21:09:13+00:00

The PCI core provides a generic pcibios_setup() routine. Drop this architecture-specific version in favor of that. Acked-by: David S. Miller Signed-off-by: Myron Stowe Signed-off-by: Bjorn Helgaas

sparc32,leon: fix leon build

2012-04-04T22:44:39+00:00

Minimal fix to allow leon to be built. Signed-off-by: Sam Ravnborg Cc: Konrad Eisele Cc: Daniel Hellstrom Signed-off-by: David S. Miller