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Merge tag 'pci-v3.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

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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
parent ea584595fc f92d9ee3ab
commit 80213c03c4
111 changed files with 4910 additions and 1332 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
include/linux/pci.h
View File

@@ -45,7 +45,7 @@
* In the interest of not exposing interfaces to user-space unnecessarily,
* the following kernel-only defines are being added here.
*/
#define PCI_DEVID(bus, devfn) ((((u16)bus) << 8) | devfn)
#define PCI_DEVID(bus, devfn) ((((u16)(bus)) << 8) | (devfn))
/* return bus from PCI devid = ((u16)bus_number) << 8) | devfn */
#define PCI_BUS_NUM(x) (((x) >> 8) & 0xff)
@@ -457,6 +457,9 @@ struct pci_bus {
unsigned char primary; /* number of primary bridge */
unsigned char max_bus_speed; /* enum pci_bus_speed */
unsigned char cur_bus_speed; /* enum pci_bus_speed */
#ifdef CONFIG_PCI_DOMAINS_GENERIC
int domain_nr;
#endif
char name[48];
@@ -1103,6 +1106,9 @@ int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
resource_size_t),
void *alignf_data);
int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr);
static inline dma_addr_t pci_bus_address(struct pci_dev *pdev, int bar)
{
struct pci_bus_region region;
@@ -1288,12 +1294,32 @@ void pci_cfg_access_unlock(struct pci_dev *dev);
*/
#ifdef CONFIG_PCI_DOMAINS
extern int pci_domains_supported;
int pci_get_new_domain_nr(void);
#else
enum { pci_domains_supported = 0 };
static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
static inline int pci_proc_domain(struct pci_bus *bus) { return 0; }
static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
#endif /* CONFIG_PCI_DOMAINS */
/*
* Generic implementation for PCI domain support. If your
* architecture does not need custom management of PCI
* domains then this implementation will be used
*/
#ifdef CONFIG_PCI_DOMAINS_GENERIC
static inline int pci_domain_nr(struct pci_bus *bus)
{
return bus->domain_nr;
}
void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent);
#else
static inline void pci_bus_assign_domain_nr(struct pci_bus *bus,
struct device *parent)
{
}
#endif
/* some architectures require additional setup to direct VGA traffic */
typedef int (*arch_set_vga_state_t)(struct pci_dev *pdev, bool decode,
unsigned int command_bits, u32 flags);
@@ -1402,6 +1428,7 @@ static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
static inline struct pci_dev *pci_dev_get(struct pci_dev *dev) { return NULL; }
static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
#define dev_is_pci(d) (false)
#define dev_is_pf(d) (false)
@@ -1563,16 +1590,11 @@ enum pci_fixup_pass {
#ifdef CONFIG_PCI_QUIRKS
void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
struct pci_dev *pci_get_dma_source(struct pci_dev *dev);
int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags);
void pci_dev_specific_enable_acs(struct pci_dev *dev);
#else
static inline void pci_fixup_device(enum pci_fixup_pass pass,
struct pci_dev *dev) { }
static inline struct pci_dev *pci_get_dma_source(struct pci_dev *dev)
{
return pci_dev_get(dev);
}
static inline int pci_dev_specific_acs_enabled(struct pci_dev *dev,
u16 acs_flags)
{
@@ -1707,7 +1729,7 @@ bool pci_acs_path_enabled(struct pci_dev *start,
struct pci_dev *end, u16 acs_flags);
#define PCI_VPD_LRDT 0x80 /* Large Resource Data Type */
#define PCI_VPD_LRDT_ID(x) (x | PCI_VPD_LRDT)
#define PCI_VPD_LRDT_ID(x) ((x) | PCI_VPD_LRDT)
/* Large Resource Data Type Tag Item Names */
#define PCI_VPD_LTIN_ID_STRING 0x02 /* Identifier String */
@@ -1834,15 +1856,17 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
int (*fn)(struct pci_dev *pdev,
u16 alias, void *data), void *data);
/**
* pci_find_upstream_pcie_bridge - find upstream PCIe-to-PCI bridge of a device
* @pdev: the PCI device
*
* if the device is PCIE, return NULL
* if the device isn't connected to a PCIe bridge (that is its parent is a
* legacy PCI bridge and the bridge is directly connected to bus 0), return its
* parent
*/
struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);
/* helper functions for operation of device flag */
static inline void pci_set_dev_assigned(struct pci_dev *pdev)
{
pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
}
static inline void pci_clear_dev_assigned(struct pci_dev *pdev)
{
pdev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
}
static inline bool pci_is_dev_assigned(struct pci_dev *pdev)
{
return (pdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) == PCI_DEV_FLAGS_ASSIGNED;
}
#endif /* LINUX_PCI_H */