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Merge tag 'pci-v3.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

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Pull PCI changes from Bjorn Helgaas:
 "Enumeration
    - Move domain assignment from arm64 to generic code (Lorenzo Pieralisi)
    - ARM: Remove artificial dependency on pci_sys_data domain (Lorenzo Pieralisi)
    - ARM: Move to generic PCI domains (Lorenzo Pieralisi)
    - Generate uppercase hex for modalias var in uevent (Ricardo Ribalda Delgado)
    - Add and use generic config accessors on ARM, PowerPC (Rob Herring)

  Resource management
    - Free resources on failure in of_pci_get_host_bridge_resources() (Lorenzo Pieralisi)
    - Fix infinite loop with ROM image of size 0 (Michel Dänzer)

  PCI device hotplug
    - Handle surprise add even if surprise removal isn't supported (Bjorn Helgaas)

  Virtualization
    - Mark AMD/ATI VGA devices that don't reset on D3hot->D0 transition (Alex Williamson)
    - Add DMA alias quirk for Adaptec 3405 (Alex Williamson)
    - Add Wellsburg (X99) to Intel PCH root port ACS quirk (Alex Williamson)
    - Add ACS quirk for Emulex NICs (Vasundhara Volam)

  MSI
    - Fail MSI-X mappings if there's no space assigned to MSI-X BAR (Yijing Wang)

  Freescale Layerscape host bridge driver
    - Fix platform_no_drv_owner.cocci warnings (Julia Lawall)

  NVIDIA Tegra host bridge driver
    - Remove unnecessary tegra_pcie_fixup_bridge() (Lucas Stach)

  Renesas R-Car host bridge driver
    - Fix error handling of irq_of_parse_and_map() (Dmitry Torokhov)

  TI Keystone host bridge driver
    - Fix error handling of irq_of_parse_and_map() (Dmitry Torokhov)
    - Fix misspelling of current function in debug output (Julia Lawall)

  Xilinx AXI host bridge driver
    - Fix harmless format string warning (Arnd Bergmann)

  Miscellaneous
    - Use standard parsing functions for ASPM sysfs setters (Chris J Arges)
    - Add pci_device_to_OF_node() stub for !CONFIG_OF (Kevin Hao)
    - Delete unnecessary NULL pointer checks (Markus Elfring)
    - Add and use defines for PCIe Max_Read_Request_Size (Rafał Miłecki)
    - Include clk.h instead of clk-private.h (Stephen Boyd)"

* tag 'pci-v3.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (48 commits)
  PCI: Add pci_device_to_OF_node() stub for !CONFIG_OF
  PCI: xilinx: Convert to use generic config accessors
  PCI: xgene: Convert to use generic config accessors
  PCI: tegra: Convert to use generic config accessors
  PCI: rcar: Convert to use generic config accessors
  PCI: generic: Convert to use generic config accessors
  powerpc/powermac: Convert PCI to use generic config accessors
  powerpc/fsl_pci: Convert PCI to use generic config accessors
  ARM: ks8695: Convert PCI to use generic config accessors
  ARM: sa1100: Convert PCI to use generic config accessors
  ARM: integrator: Convert PCI to use generic config accessors
  PCI: versatile: Add DT-based ARM Versatile PB PCIe host driver
  ARM: dts: versatile: add PCI controller binding
  of/pci: Free resources on failure in of_pci_get_host_bridge_resources()
  PCI: versatile: Add DT docs for ARM Versatile PB PCIe driver
  PCI: Fail MSI-X mappings if there's no space assigned to MSI-X BAR
  r8169: use PCI define for Max_Read_Request_Size
  [SCSI] esas2r: use PCI define for Max_Read_Request_Size
  tile: use PCI define for Max_Read_Request_Size
  rapidio/tsi721: use PCI define for Max_Read_Request_Size
  ...
This commit is contained in:
Linus Torvalds
2015-02-10 14:31:28 -08:00
parent bdccc4edeb cb8e92d8e4
commit c08f846793
51 changed files with 744 additions and 978 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
drivers/pci/quirks.c
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@@ -3076,6 +3076,27 @@ static void quirk_no_bus_reset(struct pci_dev *dev)
*/
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
static void quirk_no_pm_reset(struct pci_dev *dev)
{
/*
* We can't do a bus reset on root bus devices, but an ineffective
* PM reset may be better than nothing.
*/
if (!pci_is_root_bus(dev->bus))
dev->dev_flags |= PCI_DEV_FLAGS_NO_PM_RESET;
}
/*
* Some AMD/ATI GPUS (HD8570 - Oland) report that a D3hot->D0 transition
* causes a reset (i.e., they advertise NoSoftRst-). This transition seems
* to have no effect on the device: it retains the framebuffer contents and
* monitor sync. Advertising this support makes other layers, like VFIO,
* assume pci_reset_function() is viable for this device. Mark it as
* unavailable to skip it when testing reset methods.
*/
DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
PCI_CLASS_DISPLAY_VGA, 8, quirk_no_pm_reset);
#ifdef CONFIG_ACPI
/*
* Apple: Shutdown Cactus Ridge Thunderbolt controller.
@@ -3575,6 +3596,44 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_JMICRON,
PCI_DEVICE_ID_JMICRON_JMB388_ESD,
quirk_dma_func1_alias);
/*
* Some devices DMA with the wrong devfn, not just the wrong function.
* quirk_fixed_dma_alias() uses this table to create fixed aliases, where
* the alias is "fixed" and independent of the device devfn.
*
* For example, the Adaptec 3405 is a PCIe card with an Intel 80333 I/O
* processor. To software, this appears as a PCIe-to-PCI/X bridge with a
* single device on the secondary bus. In reality, the single exposed
* device at 0e.0 is the Address Translation Unit (ATU) of the controller
* that provides a bridge to the internal bus of the I/O processor. The
* controller supports private devices, which can be hidden from PCI config
* space. In the case of the Adaptec 3405, a private device at 01.0
* appears to be the DMA engine, which therefore needs to become a DMA
* alias for the device.
*/
static const struct pci_device_id fixed_dma_alias_tbl[] = {
{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x0285,
PCI_VENDOR_ID_ADAPTEC2, 0x02bb), /* Adaptec 3405 */
.driver_data = PCI_DEVFN(1, 0) },
{ 0 }
};
static void quirk_fixed_dma_alias(struct pci_dev *dev)
{
const struct pci_device_id *id;
id = pci_match_id(fixed_dma_alias_tbl, dev);
if (id) {
dev->dma_alias_devfn = id->driver_data;
dev->dev_flags |= PCI_DEV_FLAGS_DMA_ALIAS_DEVFN;
dev_info(&dev->dev, "Enabling fixed DMA alias to %02x.%d\n",
PCI_SLOT(dev->dma_alias_devfn),
PCI_FUNC(dev->dma_alias_devfn));
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADAPTEC2, 0x0285, quirk_fixed_dma_alias);
/*
* A few PCIe-to-PCI bridges fail to expose a PCIe capability, resulting in
* using the wrong DMA alias for the device. Some of these devices can be
@@ -3678,6 +3737,9 @@ static const u16 pci_quirk_intel_pch_acs_ids[] = {
0x9c98, 0x9c99, 0x9c9a, 0x9c9b,
/* Patsburg (X79) PCH */
0x1d10, 0x1d12, 0x1d14, 0x1d16, 0x1d18, 0x1d1a, 0x1d1c, 0x1d1e,
/* Wellsburg (X99) PCH */
0x8d10, 0x8d11, 0x8d12, 0x8d13, 0x8d14, 0x8d15, 0x8d16, 0x8d17,
0x8d18, 0x8d19, 0x8d1a, 0x8d1b, 0x8d1c, 0x8d1d, 0x8d1e,
};
static bool pci_quirk_intel_pch_acs_match(struct pci_dev *dev)
@@ -3761,6 +3823,8 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_INTEL, 0x1551, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_INTEL, 0x1558, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs },
{ 0x19a2, 0x710, pci_quirk_mf_endpoint_acs }, /* Emulex BE3-R */
{ 0x10df, 0x720, pci_quirk_mf_endpoint_acs }, /* Emulex Skyhawk-R */
{ 0 }
};