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Commit f74ad8df authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'pci-v3.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci 

Pull PCI updates from Bjorn Helgaas:
 "I'll be on vacation until Aug 11, and I suspect the merge window will
  open before then, so I'm sending this to you early.  There are more
  things I'd like to get into v3.17, so I hope to send another pull
  request soon after I return.

  The most notable pieces here are:

   - Support BARs up to 128GB (up from 8GB)
   - Fix SR-IOV resource assignment when we fail to expand a resource
   - Rework pciehp to handle a common hardware erratum
   - Cleanup MSI
   - Fix NIC renaming issue
   - Fix VGA default device issue on EFI systems
   - Fix ASPM configuration (previously we didn't enable it as expected)

  Alex Williamson has graciously agreed to take care of any major issues
  with this if you take it before I return.

  Details:

  Resource management
    - Support BAR sizes up to 128GB (Yinghai Lu)
    - Keep original resource if we fail to expand it (Guo Chao)
    - Return conventional error values from pci_revert_fw_address() (Bjorn Helgaas)
    - Tidy resource assignment messages (Bjorn Helgaas)
    - Don't exclude low BIOS area for non-PCI cards (Christoph Schulz)

  PCI device hotplug
    - Prevent NULL dereference during pciehp probe (Andreas Noever)
    - Make pciehp pcie_wait_cmd() self-contained (Bjorn Helgaas)
    - Wait for pciehp hotplug command completion lazily (Bjorn Helgaas)
    - Compute pciehp timeout from hotplug command start time (Bjorn Helgaas)
    - Remove pciehp assumptions about which commands cause completion events (Bjorn Helgaas)
    - Clear pciehp Data Link Layer State Changed during init (Myron Stowe)
    - Remove pciehp struct controller.no_cmd_complete (Rajat Jain)
    - Remove cpqphp unnecessary null test (Fabian Frederick)
    - Remove "invalid IRQ" warning for hot-added PCIe ports (Jiang Liu)

  IOMMU
    - Add DMA alias quirk for Intel 82801 bridge (Alex Williamson)

  MSI
    - Add internal msix_clear_and_set_ctrl() (Yijing Wang)
    - Remove unused msi_enabled_mask() (Yijing Wang)
    - Cache Multiple Message Capable in struct msi_desc (Yijing Wang)
    - Add msi_setup_entry() to clean up initialization (Yijing Wang)
    - Remove unused msi_remove_pci_irq_vectors() (Yijing Wang)
    - Retrieve first MSI IRQ from msi_desc rather than pci_dev (Yijing Wang)
    - Remove unused list access in __pci_restore_msix_state() (Yijing Wang)
    - Use irq_get_msi_desc() to simplify code (Yijing Wang)

  Generic host bridge driver
    - Fix GPL v2 license string typo (Bjorn Helgaas)

  Marvell MVEBU
    - Fix GPL v2 license string typo (Thierry Reding)

  NVIDIA Tegra
    - Use correct initial HW settings (Phil Edworthy)
    - Remove rcar_pcie_setup_window() resource argument (Phil Edworthy)
    - Fix GPL v2 license string typo (Thierry Reding)

  Renesas R-Car
    - Remove redundant config accessor register checks (Sergei Shtylyov)
    - Fix GPL v2 license string typo (Bjorn Helgaas)

  Virtualization
    - Factor secondary bus reset logic (Gavin Shan)
    - Remove duplicate powerpc reset logic (Gavin Shan)

  Miscellaneous
    - Rework default VGA detection for EFI (Bruno Prémont)
    - Fix sysfs "acpi_index" and "label" errors for NIC renaming (Simone Gotti)
    - Configure ASPM at pci_enable_device()-time (Vidya Sagar)
    - Add include/linux/pci_ids.h include guard (Rasmus Villemoes)"

* tag 'pci-v3.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (38 commits)
  PCI/MSI: Use irq_get_msi_desc() to simplify code
  PCI/MSI: Remove unused list access in __pci_restore_msix_state()
  PCI/MSI: Retrieve first MSI IRQ from msi_desc rather than pci_dev
  PCI/MSI: Remove unused function msi_remove_pci_irq_vectors()
  PCI/MSI: Add msi_setup_entry() to clean up MSI initialization
  PCI: Configure ASPM when enabling device
  x86: don't exclude low BIOS area when allocating address space for non-PCI cards
  PCI: generic: Fix GPL v2 license string typo
  PCI: rcar: Fix GPL v2 license string typo
  PCI: tegra: Fix GPL v2 license string typo
  PCI: mvebu: Fix GPL v2 license string typo
  PCI: Add include guard to include/linux/pci_ids.h
  x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup()
  PCI: Tidy resource assignment messages
  PCI: Return conventional error values from pci_revert_fw_address()
  PCI: Cleanup control flow
  PCI: Support BAR sizes up to 128GB
  PCI: cpqphp: Remove unnecessary null test before debugfs_remove()
  PCI: pciehp: Clear Data Link Layer State Changed during init
  PCI: Add bridge DMA alias quirk for Intel 82801 bridge
  ...
parents 19583ca5 792688fd

arch/ia64/pci/fixup.c

+22 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
#include <linux/pci.h>

#include <linux/init.h>

#include <linux/vgaarb.h>

#include <linux/screen_info.h>



#include <asm/machvec.h>
@@ -37,6 +38,27 @@ static void pci_fixup_video(struct pci_dev *pdev) 
		return;

	/* Maybe, this machine supports legacy memory map. */



	if (!vga_default_device()) {

		resource_size_t start, end;

		int i;



		/* Does firmware framebuffer belong to us? */

		for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {

			if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM))

				continue;



			start = pci_resource_start(pdev, i);

			end  = pci_resource_end(pdev, i);



			if (!start || !end)

				continue;



			if (screen_info.lfb_base >= start &&

			    (screen_info.lfb_base + screen_info.lfb_size) < end)

				vga_set_default_device(pdev);

		}

	}



	/* Is VGA routed to us? */

	bus = pdev->bus;

	while (bus) {

arch/powerpc/kernel/pci-common.c

+1 −10
Original line number Diff line number Diff line
@@ -123,21 +123,12 @@ resource_size_t pcibios_window_alignment(struct pci_bus *bus, 


void pcibios_reset_secondary_bus(struct pci_dev *dev)

{

	u16 ctrl;



	if (ppc_md.pcibios_reset_secondary_bus) {

		ppc_md.pcibios_reset_secondary_bus(dev);

		return;

	}



	pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &ctrl);

	ctrl |= PCI_BRIDGE_CTL_BUS_RESET;

	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, ctrl);

	msleep(2);



	ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET;

	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, ctrl);

	ssleep(1);

	pci_reset_secondary_bus(dev);

}



static resource_size_t pcibios_io_size(const struct pci_controller *hose)

arch/x86/include/asm/vga.h

+0 −6
Original line number Diff line number Diff line
@@ -17,10 +17,4 @@ 
#define vga_readb(x) (*(x))

#define vga_writeb(x, y) (*(y) = (x))



#ifdef CONFIG_FB_EFI

#define __ARCH_HAS_VGA_DEFAULT_DEVICE

extern struct pci_dev *vga_default_device(void);

extern void vga_set_default_device(struct pci_dev *pdev);

#endif



#endif /* _ASM_X86_VGA_H */

arch/x86/kernel/resource.c

+5 −3
Original line number Diff line number Diff line
@@ -37,10 +37,12 @@ static void remove_e820_regions(struct resource *avail) 


void arch_remove_reservations(struct resource *avail)

{

	/* Trim out BIOS areas (low 1MB and high 2MB) and E820 regions */

	/*

	 * Trim out BIOS area (high 2MB) and E820 regions. We do not remove

	 * the low 1MB unconditionally, as this area is needed for some ISA

	 * cards requiring a memory range, e.g. the i82365 PCMCIA controller.

	 */

	if (avail->flags & IORESOURCE_MEM) {

		if (avail->start < BIOS_END)

			avail->start = BIOS_END;

		resource_clip(avail, BIOS_ROM_BASE, BIOS_ROM_END);



		remove_e820_regions(avail);

arch/x86/pci/fixup.c

+21 −0
Original line number Diff line number Diff line
@@ -326,6 +326,27 @@ static void pci_fixup_video(struct pci_dev *pdev) 
	struct pci_bus *bus;

	u16 config;



	if (!vga_default_device()) {

		resource_size_t start, end;

		int i;



		/* Does firmware framebuffer belong to us? */

		for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {

			if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM))

				continue;



			start = pci_resource_start(pdev, i);

			end  = pci_resource_end(pdev, i);



			if (!start || !end)

				continue;



			if (screen_info.lfb_base >= start &&

			    (screen_info.lfb_base + screen_info.lfb_size) < end)

				vga_set_default_device(pdev);

		}

	}



	/* Is VGA routed to us? */

	bus = pdev->bus;

	while (bus) {