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PCI changes for the v3.18 merge window:

Browse source 
Enumeration
     - Check Vendor ID only for Config Request Retry Status (Rajat Jain)
     - Enable Config Request Retry Status when supported (Rajat Jain)
     - Add generic domain handling (Catalin Marinas)
     - Generate uppercase hex for modalias interface class (Ricardo Ribalda Delgado)
 
   Resource management
     - Add missing MEM_64 mask in pci_assign_unassigned_bridge_resources() (Yinghai Lu)
     - Increase IBM ipr SAS Crocodile BARs to at least system page size (Douglas Lehr)
 
   PCI device hotplug
     - Prevent NULL dereference during pciehp probe (Andreas Noever)
     - Move _HPP & _HPX handling into core (Bjorn Helgaas)
     - Apply _HPP to PCIe devices as well as PCI (Bjorn Helgaas)
     - Apply _HPP/_HPX to display devices (Bjorn Helgaas)
     - Preserve SERR & PARITY settings when applying _HPP/_HPX (Bjorn Helgaas)
     - Preserve MPS and MRRS settings when applying _HPP/_HPX (Bjorn Helgaas)
     - Apply _HPP/_HPX to all devices, not just hot-added ones (Bjorn Helgaas)
     - Fix wait time in pciehp timeout message (Yinghai Lu)
     - Add more pciehp Slot Control debug output (Yinghai Lu)
     - Stop disabling pciehp notifications during init (Yinghai Lu)
 
   MSI
     - Remove arch_msi_check_device() (Alexander Gordeev)
     - Rename pci_msi_check_device() to pci_msi_supported() (Alexander Gordeev)
     - Move D0 check into pci_msi_check_device() (Alexander Gordeev)
     - Remove unused kobject from struct msi_desc (Yijing Wang)
     - Remove "pos" from the struct msi_desc msi_attrib (Yijing Wang)
     - Add "msi_bus" sysfs MSI/MSI-X control for endpoints (Yijing Wang)
     - Use __get_cached_msi_msg() instead of get_cached_msi_msg() (Yijing Wang)
     - Use __read_msi_msg() instead of read_msi_msg() (Yijing Wang)
     - Use __write_msi_msg() instead of write_msi_msg() (Yijing Wang)
 
   Power management
     - Drop unused runtime PM support code for PCIe ports (Rafael J.  Wysocki)
     - Allow PCI devices to be put into D3cold during system suspend (Rafael J. Wysocki)
 
   AER
     - Add additional AER error strings (Gong Chen)
     - Make <linux/aer.h> standalone includable (Thierry Reding)
 
   Virtualization
     - Add ACS quirk for Solarflare SFC9120 & SFC9140 (Alex Williamson)
     - Add ACS quirk for Intel 10G NICs (Alex Williamson)
     - Add ACS quirk for AMD A88X southbridge (Marti Raudsepp)
     - Remove unused pci_find_upstream_pcie_bridge(), pci_get_dma_source() (Alex Williamson)
     - Add device flag helpers (Ethan Zhao)
     - Assume all Mellanox devices have broken INTx masking (Gavin Shan)
 
   Generic host bridge driver
     - Fix ioport_map() for !CONFIG_GENERIC_IOMAP (Liviu Dudau)
     - Add pci_register_io_range() and pci_pio_to_address() (Liviu Dudau)
     - Define PCI_IOBASE as the base of virtual PCI IO space (Liviu Dudau)
     - Fix the conversion of IO ranges into IO resources (Liviu Dudau)
     - Add pci_get_new_domain_nr() and of_get_pci_domain_nr() (Liviu Dudau)
     - Add support for parsing PCI host bridge resources from DT (Liviu Dudau)
     - Add pci_remap_iospace() to map bus I/O resources (Liviu Dudau)
     - Add arm64 architectural support for PCI (Liviu Dudau)
 
   APM X-Gene
     - Add APM X-Gene PCIe driver (Tanmay Inamdar)
     - Add arm64 DT APM X-Gene PCIe device tree nodes (Tanmay Inamdar)
 
   Freescale i.MX6
     - Probe in module_init(), not fs_initcall() (Lucas Stach)
     - Delay enabling reference clock for SS until it stabilizes (Tim Harvey)
 
   Marvell MVEBU
     - Fix uninitialized variable in mvebu_get_tgt_attr() (Thomas Petazzoni)
 
   NVIDIA Tegra
     - Make sure the PCIe PLL is really reset (Eric Yuen)
     - Add error path tegra_msi_teardown_irq() cleanup (Jisheng Zhang)
     - Fix extended configuration space mapping (Peter Daifuku)
     - Implement resource hierarchy (Thierry Reding)
     - Clear CLKREQ# enable on port disable (Thierry Reding)
     - Add Tegra124 support (Thierry Reding)
 
   ST Microelectronics SPEAr13xx
     - Pass config resource through reg property (Pratyush Anand)
 
   Synopsys DesignWare
     - Use NULL instead of false (Fabio Estevam)
     - Parse bus-range property from devicetree (Lucas Stach)
     - Use pci_create_root_bus() instead of pci_scan_root_bus() (Lucas Stach)
     - Remove pci_assign_unassigned_resources() (Lucas Stach)
     - Check private_data validity in single place (Lucas Stach)
     - Setup and clear exactly one MSI at a time (Lucas Stach)
     - Remove open-coded bitmap operations (Lucas Stach)
     - Fix configuration base address when using 'reg' (Minghuan Lian)
     - Fix IO resource end address calculation (Minghuan Lian)
     - Rename get_msi_data() to get_msi_addr() (Minghuan Lian)
     - Add get_msi_data() to pcie_host_ops (Minghuan Lian)
     - Add support for v3.65 hardware (Murali Karicheri)
     - Fold struct pcie_port_info into struct pcie_port (Pratyush Anand)
 
   TI Keystone
     - Add TI Keystone PCIe driver (Murali Karicheri)
     - Limit MRSS for all downstream devices (Murali Karicheri)
     - Assume controller is already in RC mode (Murali Karicheri)
     - Set device ID based on SoC to support multiple ports (Murali Karicheri)
 
   Xilinx AXI
     - Add Xilinx AXI PCIe driver (Srikanth Thokala)
     - Fix xilinx_pcie_assign_msi() return value test (Dan Carpenter)
 
   Miscellaneous
     - Clean up whitespace (Quentin Lambert)
     - Remove assignments from "if" conditions (Quentin Lambert)
     - Move PCI_VENDOR_ID_VMWARE to pci_ids.h (Francesco Ruggeri)
     - x86: Mark DMI tables as initialization data (Mathias Krause)
     - x86: Move __init annotation to the correct place (Mathias Krause)
     - x86: Mark constants of pci_mmcfg_nvidia_mcp55() as __initconst (Mathias Krause)
     - x86: Constify pci_mmcfg_probes[] array (Mathias Krause)
     - x86: Mark PCI BIOS initialization code as such (Mathias Krause)
     - Parenthesize PCI_DEVID and PCI_VPD_LRDT_ID parameters (Megan Kamiya)
     - Remove unnecessary variable in pci_add_dynid() (Tobias Klauser)
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Merge tag 'pci-v3.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "The interesting things here are:

   - Turn on Config Request Retry Status Software Visibility.  This
     caused hangs last time, but we included a fix this time.
   - Rework PCI device configuration to use _HPP/_HPX more aggressively
   - Allow PCI devices to be put into D3cold during system suspend
   - Add arm64 PCI support
   - Add APM X-Gene host bridge driver
   - Add TI Keystone host bridge driver
   - Add Xilinx AXI host bridge driver

  More detailed summary:

  Enumeration
    - Check Vendor ID only for Config Request Retry Status (Rajat Jain)
    - Enable Config Request Retry Status when supported (Rajat Jain)
    - Add generic domain handling (Catalin Marinas)
    - Generate uppercase hex for modalias interface class (Ricardo Ribalda Delgado)

  Resource management
    - Add missing MEM_64 mask in pci_assign_unassigned_bridge_resources() (Yinghai Lu)
    - Increase IBM ipr SAS Crocodile BARs to at least system page size (Douglas Lehr)

  PCI device hotplug
    - Prevent NULL dereference during pciehp probe (Andreas Noever)
    - Move _HPP & _HPX handling into core (Bjorn Helgaas)
    - Apply _HPP to PCIe devices as well as PCI (Bjorn Helgaas)
    - Apply _HPP/_HPX to display devices (Bjorn Helgaas)
    - Preserve SERR & PARITY settings when applying _HPP/_HPX (Bjorn Helgaas)
    - Preserve MPS and MRRS settings when applying _HPP/_HPX (Bjorn Helgaas)
    - Apply _HPP/_HPX to all devices, not just hot-added ones (Bjorn Helgaas)
    - Fix wait time in pciehp timeout message (Yinghai Lu)
    - Add more pciehp Slot Control debug output (Yinghai Lu)
    - Stop disabling pciehp notifications during init (Yinghai Lu)

  MSI
    - Remove arch_msi_check_device() (Alexander Gordeev)
    - Rename pci_msi_check_device() to pci_msi_supported() (Alexander Gordeev)
    - Move D0 check into pci_msi_check_device() (Alexander Gordeev)
    - Remove unused kobject from struct msi_desc (Yijing Wang)
    - Remove "pos" from the struct msi_desc msi_attrib (Yijing Wang)
    - Add "msi_bus" sysfs MSI/MSI-X control for endpoints (Yijing Wang)
    - Use __get_cached_msi_msg() instead of get_cached_msi_msg() (Yijing Wang)
    - Use __read_msi_msg() instead of read_msi_msg() (Yijing Wang)
    - Use __write_msi_msg() instead of write_msi_msg() (Yijing Wang)

  Power management
    - Drop unused runtime PM support code for PCIe ports (Rafael J.  Wysocki)
    - Allow PCI devices to be put into D3cold during system suspend (Rafael J. Wysocki)

  AER
    - Add additional AER error strings (Gong Chen)
    - Make <linux/aer.h> standalone includable (Thierry Reding)

  Virtualization
    - Add ACS quirk for Solarflare SFC9120 & SFC9140 (Alex Williamson)
    - Add ACS quirk for Intel 10G NICs (Alex Williamson)
    - Add ACS quirk for AMD A88X southbridge (Marti Raudsepp)
    - Remove unused pci_find_upstream_pcie_bridge(), pci_get_dma_source() (Alex Williamson)
    - Add device flag helpers (Ethan Zhao)
    - Assume all Mellanox devices have broken INTx masking (Gavin Shan)

  Generic host bridge driver
    - Fix ioport_map() for !CONFIG_GENERIC_IOMAP (Liviu Dudau)
    - Add pci_register_io_range() and pci_pio_to_address() (Liviu Dudau)
    - Define PCI_IOBASE as the base of virtual PCI IO space (Liviu Dudau)
    - Fix the conversion of IO ranges into IO resources (Liviu Dudau)
    - Add pci_get_new_domain_nr() and of_get_pci_domain_nr() (Liviu Dudau)
    - Add support for parsing PCI host bridge resources from DT (Liviu Dudau)
    - Add pci_remap_iospace() to map bus I/O resources (Liviu Dudau)
    - Add arm64 architectural support for PCI (Liviu Dudau)

  APM X-Gene
    - Add APM X-Gene PCIe driver (Tanmay Inamdar)
    - Add arm64 DT APM X-Gene PCIe device tree nodes (Tanmay Inamdar)

  Freescale i.MX6
    - Probe in module_init(), not fs_initcall() (Lucas Stach)
    - Delay enabling reference clock for SS until it stabilizes (Tim Harvey)

  Marvell MVEBU
    - Fix uninitialized variable in mvebu_get_tgt_attr() (Thomas Petazzoni)

  NVIDIA Tegra
    - Make sure the PCIe PLL is really reset (Eric Yuen)
    - Add error path tegra_msi_teardown_irq() cleanup (Jisheng Zhang)
    - Fix extended configuration space mapping (Peter Daifuku)
    - Implement resource hierarchy (Thierry Reding)
    - Clear CLKREQ# enable on port disable (Thierry Reding)
    - Add Tegra124 support (Thierry Reding)

  ST Microelectronics SPEAr13xx
    - Pass config resource through reg property (Pratyush Anand)

  Synopsys DesignWare
    - Use NULL instead of false (Fabio Estevam)
    - Parse bus-range property from devicetree (Lucas Stach)
    - Use pci_create_root_bus() instead of pci_scan_root_bus() (Lucas Stach)
    - Remove pci_assign_unassigned_resources() (Lucas Stach)
    - Check private_data validity in single place (Lucas Stach)
    - Setup and clear exactly one MSI at a time (Lucas Stach)
    - Remove open-coded bitmap operations (Lucas Stach)
    - Fix configuration base address when using 'reg' (Minghuan Lian)
    - Fix IO resource end address calculation (Minghuan Lian)
    - Rename get_msi_data() to get_msi_addr() (Minghuan Lian)
    - Add get_msi_data() to pcie_host_ops (Minghuan Lian)
    - Add support for v3.65 hardware (Murali Karicheri)
    - Fold struct pcie_port_info into struct pcie_port (Pratyush Anand)

  TI Keystone
    - Add TI Keystone PCIe driver (Murali Karicheri)
    - Limit MRSS for all downstream devices (Murali Karicheri)
    - Assume controller is already in RC mode (Murali Karicheri)
    - Set device ID based on SoC to support multiple ports (Murali Karicheri)

  Xilinx AXI
    - Add Xilinx AXI PCIe driver (Srikanth Thokala)
    - Fix xilinx_pcie_assign_msi() return value test (Dan Carpenter)

  Miscellaneous
    - Clean up whitespace (Quentin Lambert)
    - Remove assignments from "if" conditions (Quentin Lambert)
    - Move PCI_VENDOR_ID_VMWARE to pci_ids.h (Francesco Ruggeri)
    - x86: Mark DMI tables as initialization data (Mathias Krause)
    - x86: Move __init annotation to the correct place (Mathias Krause)
    - x86: Mark constants of pci_mmcfg_nvidia_mcp55() as __initconst (Mathias Krause)
    - x86: Constify pci_mmcfg_probes[] array (Mathias Krause)
    - x86: Mark PCI BIOS initialization code as such (Mathias Krause)
    - Parenthesize PCI_DEVID and PCI_VPD_LRDT_ID parameters (Megan Kamiya)
    - Remove unnecessary variable in pci_add_dynid() (Tobias Klauser)"

* tag 'pci-v3.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (109 commits)
  arm64: dts: Add APM X-Gene PCIe device tree nodes
  PCI: Add ACS quirk for AMD A88X southbridge devices
  PCI: xgene: Add APM X-Gene PCIe driver
  PCI: designware: Remove open-coded bitmap operations
  PCI/MSI: Remove unnecessary temporary variable
  PCI/MSI: Use __write_msi_msg() instead of write_msi_msg()
  MSI/powerpc: Use __read_msi_msg() instead of read_msi_msg()
  PCI/MSI: Use __get_cached_msi_msg() instead of get_cached_msi_msg()
  PCI/MSI: Add "msi_bus" sysfs MSI/MSI-X control for endpoints
  PCI/MSI: Remove "pos" from the struct msi_desc msi_attrib
  PCI/MSI: Remove unused kobject from struct msi_desc
  PCI/MSI: Rename pci_msi_check_device() to pci_msi_supported()
  PCI/MSI: Move D0 check into pci_msi_check_device()
  PCI/MSI: Remove arch_msi_check_device()
  irqchip: armada-370-xp: Remove arch_msi_check_device()
  PCI/MSI/PPC: Remove arch_msi_check_device()
  arm64: Add architectural support for PCI
  PCI: Add pci_remap_iospace() to map bus I/O resources
  of/pci: Add support for parsing PCI host bridge resources from DT
  of/pci: Add pci_get_new_domain_nr() and of_get_pci_domain_nr()
  ...

Conflicts:
	arch/arm64/boot/dts/apm-storm.dtsi
This commit is contained in:
Linus Torvalds 2014-10-09 15:03:49 -04:00
commit 80213c03c4
111 changed files with 4910 additions and 1332 deletions
Download patch file Download diff file Expand all files Collapse all files

70
kernel/resource.c
View file

@ -1245,6 +1245,76 @@ int release_mem_region_adjustable(struct resource *parent,
/*
* Managed region resource
*/
static void devm_resource_release(struct device *dev, void *ptr)
{
struct resource **r = ptr;
release_resource(*r);
}
/**
* devm_request_resource() - request and reserve an I/O or memory resource
* @dev: device for which to request the resource
* @root: root of the resource tree from which to request the resource
* @new: descriptor of the resource to request
*
* This is a device-managed version of request_resource(). There is usually
* no need to release resources requested by this function explicitly since
* that will be taken care of when the device is unbound from its driver.
* If for some reason the resource needs to be released explicitly, because
* of ordering issues for example, drivers must call devm_release_resource()
* rather than the regular release_resource().
*
* When a conflict is detected between any existing resources and the newly
* requested resource, an error message will be printed.
*
* Returns 0 on success or a negative error code on failure.
*/
int devm_request_resource(struct device *dev, struct resource *root,
struct resource *new)
{
struct resource *conflict, **ptr;
ptr = devres_alloc(devm_resource_release, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return -ENOMEM;
*ptr = new;
conflict = request_resource_conflict(root, new);
if (conflict) {
dev_err(dev, "resource collision: %pR conflicts with %s %pR\n",
new, conflict->name, conflict);
devres_free(ptr);
return -EBUSY;
}
devres_add(dev, ptr);
return 0;
}
EXPORT_SYMBOL(devm_request_resource);
static int devm_resource_match(struct device *dev, void *res, void *data)
{
struct resource **ptr = res;
return *ptr == data;
}
/**
* devm_release_resource() - release a previously requested resource
* @dev: device for which to release the resource
* @new: descriptor of the resource to release
*
* Releases a resource previously requested using devm_request_resource().
*/
void devm_release_resource(struct device *dev, struct resource *new)
{
WARN_ON(devres_release(dev, devm_resource_release, devm_resource_match,
new));
}
EXPORT_SYMBOL(devm_release_resource);
struct region_devres {
struct resource *parent;
resource_size_t start;