Commit 26f8b7ed authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'pci-v4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci 

Pull PCI updates from Bjorn Helgaas:
 "PCI changes for the v4.3 merge window:

  Enumeration:
   - Allocate ATS struct during enumeration (Bjorn Helgaas)
   - Embed ATS info directly into struct pci_dev (Bjorn Helgaas)
   - Reduce size of ATS structure elements (Bjorn Helgaas)
   - Stop caching ATS Invalidate Queue Depth (Bjorn Helgaas)
   - iommu/vt-d: Cache PCI ATS state and Invalidate Queue Depth (Bjorn Helgaas)
   - Move MPS configuration check to pci_configure_device() (Bjorn Helgaas)
   - Set MPS to match upstream bridge (Keith Busch)
   - ARM/PCI: Set MPS before pci_bus_add_devices() (Murali Karicheri)
   - Add pci_scan_root_bus_msi() (Lorenzo Pieralisi)
   - ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi() (Lorenzo Pieralisi)

  Resource management:
   - Call pci_read_bridge_bases() from core instead of arch code (Lorenzo Pieralisi)

  PCI device hotplug:
   - pciehp: Remove unused interrupt events (Bjorn Helgaas)
   - pciehp: Remove ignored MRL sensor interrupt events (Bjorn Helgaas)
   - pciehp: Handle invalid data when reading from non-existent devices (Jarod Wilson)
   - pciehp: Simplify pcie_poll_cmd() (Yijing Wang)
   - Use "slot" and "pci_slot" for struct hotplug_slot and struct pci_slot (Yijing Wang)
   - Protect pci_bus->slots with pci_slot_mutex, not pci_bus_sem (Yijing Wang)
   - Hold pci_slot_mutex while searching bus->slots list (Yijing Wang)

  Power management:
   - Disable async suspend/resume for JMicron multi-function SATA/AHCI (Zhang Rui)

  Virtualization:
   - Add ACS quirks for Intel I219-LM/V (Alex Williamson)
   - Restore ACS configuration as part of pci_restore_state() (Alexander Duyck)

  MSI:
   - Add pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu)
   - x86: Implement pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu)
   - Add helpers to manage pci_dev->irq and pci_dev->irq_managed (Jiang Liu)
   - Free legacy IRQ when enabling MSI/MSI-X (Jiang Liu)
   - ARM/PCI: Remove msi_controller from struct pci_sys_data (Lorenzo Pieralisi)
   - Remove unused pcibios_msi_controller() hook (Lorenzo Pieralisi)

  Generic host bridge driver:
   - Remove dependency on ARM-specific struct hw_pci (Jayachandran C)
   - Build setup-irq.o for arm64 (Jayachandran C)
   - Add arm64 support (Jayachandran C)

  APM X-Gene host bridge driver:
   - Add APM X-Gene PCIe 64-bit prefetchable window (Duc Dang)
   - Add support for a 64-bit prefetchable memory window (Duc Dang)
   - Drop owner assignment from platform_driver (Krzysztof Kozlowski)

  Broadcom iProc host bridge driver:
   - Allow BCMA bus driver to be built as module (Hauke Mehrtens)
   - Delete unnecessary checks before phy calls (Markus Elfring)
   - Add arm64 support (Ray Jui)

  Synopsys DesignWare host bridge driver:
   - Don't complain missing *config* reg space if va_cfg0 is set (Murali Karicheri)

  TI DRA7xx host bridge driver:
   - Disable pm_runtime on get_sync failure (Kishon Vijay Abraham I)
   - Add PM support (Kishon Vijay Abraham I)
   - Clear MSE bit during suspend so clocks will idle (Kishon Vijay Abraham I)
   - Add support to make GPIO drive PERST# line (Kishon Vijay Abraham I)

  Xilinx AXI host bridge driver:
   - Check for MSI interrupt flag before handling as INTx (Russell Joyce)

  Miscellaneous:
   - Fix Intersil/Techwell TW686[4589] AV capture class code (Krzysztof Hałasa)
   - Use PCI_CLASS_SERIAL_USB instead of bare number (Bjorn Helgaas)
   - Fix generic NCR 53c810 class code quirk (Bjorn Helgaas)
   - Fix TI816X class code quirk (Bjorn Helgaas)
   - Remove unused "pci_probe" flags (Bjorn Helgaas)
   - Host bridge driver code simplifications (Fabio Estevam)
   - Add dev_flags bit to access VPD through function 0 (Mark Rustad)
   - Add VPD function 0 quirk for Intel Ethernet devices (Mark Rustad)
   - Kill off set_irq_flags() usage (Rob Herring)
   - Remove Intel Cherrytrail D3 delays (Srinidhi Kasagar)
   - Clean up pci_find_capability() (Wei Yang)"

* tag 'pci-v4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (72 commits)
  PCI: Disable async suspend/resume for JMicron multi-function SATA/AHCI
  PCI: Set MPS to match upstream bridge
  PCI: Move MPS configuration check to pci_configure_device()
  PCI: Drop references acquired by of_parse_phandle()
  PCI/MSI: Remove unused pcibios_msi_controller() hook
  ARM/PCI: Remove msi_controller from struct pci_sys_data
  ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi()
  PCI: Add pci_scan_root_bus_msi()
  ARM/PCI: Replace panic with WARN messages on failures
  PCI: generic: Add arm64 support
  PCI: Build setup-irq.o for arm64
  PCI: generic: Remove dependency on ARM-specific struct hw_pci
  PCI: imx6: Simplify a trivial if-return sequence
  PCI: spear: Use BUG_ON() instead of condition followed by BUG()
  PCI: dra7xx: Remove unneeded use of IS_ERR_VALUE()
  PCI: Remove pci_ats_enabled()
  PCI: Stop caching ATS Invalidate Queue Depth
  PCI: Move ATS declarations to linux/pci.h so they're all together
  PCI: Clean up ATS error handling
  PCI: Use pci_physfn() rather than looking up physfn by hand
  ...
parents edc837da 9ca678d1

Documentation/devicetree/bindings/pci/ti-pci.txt

+3 −0
Original line number Diff line number Diff line
@@ -23,6 +23,9 @@ PCIe Designware Controller 
   interrupt-map-mask,

   interrupt-map : as specified in ../designware-pcie.txt



Optional Property:

 - gpios : Should be added if a gpio line is required to drive PERST# line



Example:

axi {

	compatible = "simple-bus";

arch/alpha/kernel/pci.c

+1 −6
Original line number Diff line number Diff line
@@ -242,12 +242,7 @@ pci_restore_srm_config(void) 


void pcibios_fixup_bus(struct pci_bus *bus)

{

	struct pci_dev *dev = bus->self;



	if (pci_has_flag(PCI_PROBE_ONLY) && dev &&

 		   (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {

 		pci_read_bridge_bases(bus);

	} 

	struct pci_dev *dev;



	list_for_each_entry(dev, &bus->devices, bus_list) {

		pdev_save_srm_config(dev);

arch/arm/boot/dts/am57xx-beagle-x15.dts

+4 −0
Original line number Diff line number Diff line
@@ -693,3 +693,7 @@ 
		};

	};

};



&pcie1 {

	gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;

};

arch/arm/boot/dts/dra7.dtsi

+1 −1
Original line number Diff line number Diff line
@@ -211,7 +211,7 @@ 
			#address-cells = <1>;

			ranges = <0x51000000 0x51000000 0x3000

				  0x0	     0x20000000 0x10000000>;

			pcie@51000000 {

			pcie1: pcie@51000000 {

				compatible = "ti,dra7-pcie";

				reg = <0x51000000 0x2000>, <0x51002000 0x14c>, <0x1000 0x2000>;

				reg-names = "rc_dbics", "ti_conf", "config";

arch/arm/include/asm/mach/pci.h

+0 −5
Original line number Diff line number Diff line
@@ -19,9 +19,7 @@ struct pci_bus; 
struct device;



struct hw_pci {

#ifdef CONFIG_PCI_MSI

	struct msi_controller *msi_ctrl;

#endif

	struct pci_ops	*ops;

	int		nr_controllers;

	void		**private_data;
@@ -42,9 +40,6 @@ struct hw_pci { 
 * Per-controller structure

 */

struct pci_sys_data {

#ifdef CONFIG_PCI_MSI

	struct msi_controller *msi_ctrl;

#endif

	struct list_head node;

	int		busnr;		/* primary bus number			*/

	u64		mem_offset;	/* bus->cpu memory mapping offset	*/

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