The most notable pieces here are
- Supporting BARs up to 8GB for Xeon Phi, etc
- Restricting 64-bit prefetchable bridge windows to 64-bit resources to
make SR-IOV devices with large MMIO requirements work
- More control over driver binding for virtualization
- New generic DT and R-Car PCIe host bridge drivers
- Updates to i.MX6, R-Car, Exynos, DesignWare host bridge drivers
The following changes since commit c9eaa447e77efe77b7fa4c953bd62de8297fd6c5:
Linux 3.15-rc1 (2014-04-13 14:18:35 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci-v3.16-changes
for you to fetch changes up to 617b4157a5c82ab3e9509aa388bfd3d47e0e623a:
Merge branches 'pci/host-exynos', 'pci/host-imx6', 'pci/resource' and 'pci/misc' into next (2014-05-30 11:41:17 -0600)
----------------------------------------------------------------
PCI changes for the v3.16 merge window:
Enumeration
- Notify driver before and after device reset (Keith Busch)
- Use reset notification in NVMe (Keith Busch)
NUMA
- Warn if we have to guess host bridge node information (Myron Stowe)
- Work around AMD Fam15h BIOSes that fail to provide _PXM (Suravee Suthikulpanit)
- Clean up and mark early_root_info_init() as deprecated (Suravee Suthikulpanit)
Driver binding
- Add "driver_override" for force specific binding (Alex Williamson)
- Fail "new_id" addition for devices we already know about (Bandan Das)
Resource management
- Support BAR sizes up to 8GB (Nikhil Rao, Alan Cox)
- Don't move IORESOURCE_PCI_FIXED resources (Bjorn Helgaas)
- Mark SBx00 HPET BAR as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
- Fail safely if we can't handle BARs larger than 4GB (Bjorn Helgaas)
- Reject BAR above 4GB if dma_addr_t is too small (Bjorn Helgaas)
- Don't convert BAR address to resource if dma_addr_t is too small (Bjorn Helgaas)
- Don't set BAR to zero if dma_addr_t is too small (Bjorn Helgaas)
- Don't print anything while decoding is disabled (Bjorn Helgaas)
- Don't add disabled subtractive decode bus resources (Bjorn Helgaas)
- Add resource allocation comments (Bjorn Helgaas)
- Restrict 64-bit prefetchable bridge windows to 64-bit resources (Yinghai Lu)
- Assign i82875p_edac PCI resources before adding device (Yinghai Lu)
PCI device hotplug
- Remove unnecessary "dev->bus" test (Bjorn Helgaas)
- Use PCI_EXP_SLTCAP_PSN define (Bjorn Helgaas)
- Fix rphahp endianess issues (Laurent Dufour)
- Acknowledge spurious "cmd completed" event (Rajat Jain)
- Allow hotplug service drivers to operate in polling mode (Rajat Jain)
- Fix cpqphp possible NULL dereference (Rickard Strandqvist)
MSI
- Replace pci_enable_msi_block() by pci_enable_msi_exact() (Alexander Gordeev)
- Replace pci_enable_msix() by pci_enable_msix_exact() (Alexander Gordeev)
- Simplify populate_msi_sysfs() (Jan Beulich)
Virtualization
- Add Intel Patsburg (X79) root port ACS quirk (Alex Williamson)
- Mark RTL8110SC INTx masking as broken (Alex Williamson)
Generic host bridge driver
- Add generic PCI host controller driver (Will Deacon)
Freescale i.MX6
- Use new clock names (Lucas Stach)
- Drop old IRQ mapping (Lucas Stach)
- Remove optional (and unused) IRQs (Lucas Stach)
- Add support for MSI (Lucas Stach)
- Fix imx6_add_pcie_port() section mismatch warning (Sachin Kamat)
Renesas R-Car
- Add gen2 device tree support (Ben Dooks)
- Use new OF interrupt mapping when possible (Lucas Stach)
- Add PCIe driver (Phil Edworthy)
- Add PCIe MSI support (Phil Edworthy)
- Add PCIe device tree bindings (Phil Edworthy)
Samsung Exynos
- Remove unnecessary OOM messages (Jingoo Han)
- Fix add_pcie_port() section mismatch warning (Sachin Kamat)
Synopsys DesignWare
- Make MSI ISR shared IRQ aware (Lucas Stach)
Miscellaneous
- Check for broken config space aliasing (Alex Williamson)
- Update email address (Ben Hutchings)
- Fix Broadcom CNB20LE unintended sign extension (Bjorn Helgaas)
- Fix incorrect vgaarb conditional in WARN_ON() (Bjorn Helgaas)
- Remove unnecessary __ref annotations (Bjorn Helgaas)
- Add arch/x86/kernel/quirks.c to MAINTAINERS PCI file patterns (Bjorn Helgaas)
- Fix use of uninitialized MPS value (Bjorn Helgaas)
- Tidy x86/gart messages (Bjorn Helgaas)
- Fix return value from pci_user_{read,write}_config_*() (Gavin Shan)
- Turn pcibios_penalize_isa_irq() into a weak function (Hanjun Guo)
- Remove unused serial device IDs (Jean Delvare)
- Use designated initialization in PCI_VDEVICE (Mark Rustad)
- Fix powerpc NULL dereference in pci_root_buses traversal (Mike Qiu)
- Configure MPS on ARM (Murali Karicheri)
- Remove unnecessary includes of <linux/init.h> (Paul Gortmaker)
- Move Open Firmware devspec attribute to PCI common code (Sebastian Ott)
- Use pdev->dev.groups for attribute creation on s390 (Sebastian Ott)
- Remove pcibios_add_platform_entries() (Sebastian Ott)
- Add new ID for Intel GPU "spurious interrupt" quirk (Thomas Jarosch)
- Rename pci_is_bridge() to pci_has_subordinate() (Yijing Wang)
- Add and use new pci_is_bridge() interface (Yijing Wang)
- Make pci_bus_add_device() void (Yijing Wang)
DMA API
- Clarify physical/bus address distinction in docs (Bjorn Helgaas)
- Fix typos in docs (Emilio López)
- Update dma_pool_create ()and dma_pool_alloc() descriptions (Gioh Kim)
- Change dma_declare_coherent_memory() CPU address to phys_addr_t (Bjorn Helgaas)
- Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory() (Bjorn Helgaas)
----------------------------------------------------------------
Alan (1):
PCI: Support BAR sizes up to 8GB
Alex Williamson (4):
PCI: Add Patsburg (X79) to Intel PCH root port ACS quirk
PCI: Mark RTL8110SC INTx masking as broken
PCI: Test for std config alias when testing extended config space
PCI: Introduce new device binding path using pci_dev.driver_override
Alexander Gordeev (3):
PCI/portdrv: Use pci_enable_msix_exact() instead of pci_enable_msix()
GenWQE: Use pci_enable_msi_exact() instead of pci_enable_msi_block()
PCI/MSI: Remove pci_enable_msi_block()
Bandan Das (1):
PCI: Fail new_id for vendor/device values already built into driver
Ben Dooks (1):
PCI: rcar: Add gen2 device tree support
Ben Hutchings (1):
PCI: Update my email address
Bjorn Helgaas (35):
PCI: hotplug: Remove unnecessary "dev->bus" test
PCI: pciehp: Use PCI_EXP_SLTCAP_PSN define
x86/PCI: Fix Broadcom CNB20LE unintended sign extension
x86/PCI: Don't try to move IORESOURCE_PCI_FIXED resources
x86/PCI: Mark ATI SBx00 HPET BAR as IORESOURCE_PCI_FIXED
PCI: Fix incorrect vgaarb conditional in WARN_ON()
PCI: Remove unnecessary __ref annotations
MAINTAINERS: Add arch/x86/kernel/quirks.c to PCI file patterns
PCI: Remove dead code
PCI: Fix use of uninitialized MPS value
Merge branches 'pci/hotplug', 'pci/msi', 'pci/virtualization' and 'pci/misc' into next
DMA-API: Clarify physical/bus address distinction
DMA-API: Change dma_declare_coherent_memory() CPU address to phys_addr_t
sh/PCI: Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory()
x86/PCI: Move pcibios_assign_resources() annotation to definition
x86/gart: Replace printk() with pr_info()
x86/gart: Tidy messages and add bridge device info
PCI: Fail safely if we can't handle BARs larger than 4GB
PCI: Reject BAR above 4GB if dma_addr_t is too small
PCI: Don't convert BAR address to resource if dma_addr_t is too small
PCI: Don't set BAR to zero if dma_addr_t is too small
PCI: Don't print anything while decoding is disabled
PCI: Don't add disabled subtractive decode bus resources
resources: Clarify sanity check message
PCI: Change pbus_size_mem() return values to be more conventional
PCI: Simplify __pci_assign_resource() coding style
PCI: Add resource allocation comments
DMA-API: Capitalize "CPU" consistently
iommu/exynos: Remove unnecessary "&" from function pointers
Merge branches 'dma-api', 'pci/virtualization', 'pci/msi', 'pci/misc' and 'pci/resource' into next
Merge branches 'pci/host-exynos', 'pci/host-rcar' and 'pci/amd-numa' into next
Merge branches 'pci/hotplug', 'pci/pci_is_bridge' and 'pci/virtualization' into next
Merge branch 'pci/misc' into next
Merge branch 'pci/host-generic' into next
Merge branches 'pci/host-exynos', 'pci/host-imx6', 'pci/resource' and 'pci/misc' into next
Emilio López (1):
DMA-API: Fix duplicated word in DMA-API-HOWTO.txt
Gavin Shan (1):
PCI: Fix return value from pci_user_{read,write}_config_*()
Gioh Kim (1):
DMA-API: Update dma_pool_create ()and dma_pool_alloc() descriptions
Hanjun Guo (1):
PCI: Turn pcibios_penalize_isa_irq() into a weak function
Jan Beulich (1):
PCI/MSI: Simplify populate_msi_sysfs()
Jean Delvare (1):
PCI: Remove old serial device IDs
Jingoo Han (1):
PCI: exynos: Remove unnecessary OOM messages
Keith Busch (2):
PCI: Notify driver before and after device reset
NVMe: Implement PCIe reset notification callback
Laurent Dufour (1):
PCI: rphahp: Fix endianess issues
Lucas Stach (6):
PCI: rcar: Use new OF interrupt mapping when possible
PCI: imx6: Use new clock names
PCI: imx6: Drop old IRQ mapping
PCI: imx6: Remove optional (and unused) IRQs
PCI: designware: Make MSI ISR shared IRQ aware
PCI: imx6: Add support for MSI
Mark Rustad (1):
PCI: Use designated initialization in PCI_VDEVICE
Mike Qiu (1):
powerpc/PCI: Fix NULL dereference in sys_pciconfig_iobase() list traversal
Murali Karicheri (1):
ARM/PCI: Call pcie_bus_configure_settings() to set MPS
Myron Stowe (1):
x86/PCI: Warn if we have to "guess" host bridge node information
Paul Gortmaker (1):
PCI: Remove unnecessary includes of <linux/init.h>
Phil Edworthy (3):
PCI: rcar: Add Renesas R-Car PCIe driver
PCI: rcar: Add MSI support for PCIe
PCI: rcar: Add R-Car PCIe device tree bindings
Rajat Jain (2):
PCI: pciehp: Acknowledge spurious "cmd completed" event
PCI: Allow hotplug service drivers to operate in polling mode
Rickard Strandqvist (1):
PCI: cpqphp: Fix possible null pointer dereference
Sachin Kamat (2):
PCI: exynos: Fix add_pcie_port() section mismatch warning
PCI: imx6: Fix imx6_add_pcie_port() section mismatch warning
Sebastian Ott (3):
PCI: Move Open Firmware devspec attribute to PCI common code
s390/pci: use pdev->dev.groups for attribute creation
PCI: Remove pcibios_add_platform_entries()
Suravee Suthikulpanit (2):
x86/PCI: Work around AMD Fam15h BIOSes that fail to provide _PXM
x86/PCI: Clean up and mark early_root_info_init() as deprecated
Thomas Jarosch (1):
PCI: Add new ID for Intel GPU "spurious interrupt" quirk
Will Deacon (2):
PCI: generic: Add generic PCI host controller driver
MAINTAINERS: Add generic PCI host controller driver
Yijing Wang (14):
PCI: Rename pci_is_bridge() to pci_has_subordinate()
PCI: Add new pci_is_bridge() interface
PCI: Use pci_is_bridge() to simplify code
x86/PCI: Use pci_is_bridge() to simplify code
ia64/PCI: Use pci_is_bridge() to simplify code
powerpc/PCI: Use pci_is_bridge() to simplify code
sparc/PCI: Use pci_is_bridge() to simplify code
PCI: rpaphp: Use pci_is_bridge() to simplify code
PCI: shpchp: Use pci_is_bridge() to simplify code
PCI: cpcihp: Use pci_is_bridge() to simplify code
PCI: acpiphp: Use pci_is_bridge() to simplify code
PCI: pciehp: Use pci_is_bridge() to simplify code
pcmcia: Use pci_is_bridge() to simplify code
PCI: Make pci_bus_add_device() void
Yinghai Lu (2):
PCI: Restrict 64-bit prefetchable bridge windows to 64-bit resources
i82875p_edac: Assign PCI resources before adding device
Documentation/ABI/testing/sysfs-bus-pci | 23 +-
Documentation/DMA-API-HOWTO.txt | 210 ++--
Documentation/DMA-API.txt | 150 +--
Documentation/DMA-ISA-LPC.txt | 4 +-
.../devicetree/bindings/pci/host-generic-pci.txt | 100 ++
.../devicetree/bindings/pci/pci-rcar-gen2.txt | 66 ++
Documentation/devicetree/bindings/pci/rcar-pci.txt | 47 +
MAINTAINERS | 9 +
arch/alpha/include/asm/pci.h | 5 -
arch/arm/include/asm/pci.h | 5 -
arch/arm/kernel/bios32.c | 12 +
arch/blackfin/include/asm/pci.h | 5 -
arch/cris/include/asm/pci.h | 1 -
arch/frv/include/asm/pci.h | 2 -
arch/frv/mb93090-mb00/pci-irq.c | 4 -
arch/ia64/include/asm/pci.h | 6 -
arch/ia64/pci/fixup.c | 4 +-
arch/microblaze/include/asm/pci.h | 5 -
arch/microblaze/pci/pci-common.c | 20 -
arch/mips/include/asm/pci.h | 5 -
arch/mn10300/include/asm/pci.h | 1 -
arch/mn10300/unit-asb2305/pci-irq.c | 4 -
arch/parisc/include/asm/pci.h | 5 -
arch/powerpc/include/asm/pci.h | 5 -
arch/powerpc/kernel/pci-common.c | 20 -
arch/powerpc/kernel/pci-hotplug.c | 3 +-
arch/powerpc/kernel/pci_64.c | 10 +-
arch/powerpc/kernel/pci_of_scan.c | 3 +-
arch/s390/include/asm/pci.h | 6 +-
arch/s390/pci/pci.c | 6 +-
arch/s390/pci/pci_sysfs.c | 44 +-
arch/sh/drivers/pci/fixups-dreamcast.c | 18 +-
arch/sh/include/asm/pci.h | 5 -
arch/sparc/include/asm/pci_32.h | 5 -
arch/sparc/include/asm/pci_64.h | 5 -
arch/sparc/kernel/pci.c | 3 +-
arch/unicore32/include/asm/pci.h | 5 -
arch/x86/include/asm/pci.h | 1 -
arch/x86/kernel/aperture_64.c | 59 +-
arch/x86/pci/acpi.c | 6 +-
arch/x86/pci/amd_bus.c | 83 +-
arch/x86/pci/broadcom_bus.c | 4 +-
arch/x86/pci/fixup.c | 18 +-
arch/x86/pci/i386.c | 27 +-
arch/xtensa/include/asm/pci.h | 5 -
drivers/base/dma-coherent.c | 10 +-
drivers/base/dma-mapping.c | 6 +-
drivers/block/nvme-core.c | 11 +
drivers/edac/i82875p_edac.c | 8 +-
drivers/iommu/exynos-iommu.c | 14 +-
drivers/misc/genwqe/card_utils.c | 2 +-
drivers/pci/access.c | 12 +-
drivers/pci/bus.c | 11 +-
drivers/pci/host-bridge.c | 1 -
drivers/pci/host/Kconfig | 13 +
drivers/pci/host/Makefile | 2 +
drivers/pci/host/pci-exynos.c | 11 +-
drivers/pci/host/pci-host-generic.c | 388 ++++++++
drivers/pci/host/pci-imx6.c | 147 ++-
drivers/pci/host/pci-rcar-gen2.c | 39 +-
drivers/pci/host/pcie-designware.c | 6 +-
drivers/pci/host/pcie-designware.h | 2 +-
drivers/pci/host/pcie-rcar.c | 1008 ++++++++++++++++++++
drivers/pci/hotplug-pci.c | 2 +-
drivers/pci/hotplug/acpiphp_glue.c | 6 +-
drivers/pci/hotplug/cpci_hotplug_pci.c | 5 +-
drivers/pci/hotplug/cpqphp_ctrl.c | 3 +-
drivers/pci/hotplug/cpqphp_nvram.c | 1 -
drivers/pci/hotplug/pciehp.h | 2 +-
drivers/pci/hotplug/pciehp_hpc.c | 2 +
drivers/pci/hotplug/pciehp_pci.c | 3 +-
drivers/pci/hotplug/pcihp_slot.c | 3 +-
drivers/pci/hotplug/rpadlpar_core.c | 3 +-
drivers/pci/hotplug/rpaphp_core.c | 15 +-
drivers/pci/hotplug/s390_pci_hpc.c | 1 -
drivers/pci/hotplug/shpchp_pci.c | 5 +-
drivers/pci/iov.c | 2 +-
drivers/pci/msi.c | 96 +-
drivers/pci/pci-acpi.c | 8 +-
drivers/pci/pci-driver.c | 58 +-
drivers/pci/pci-sysfs.c | 68 +-
drivers/pci/pci.c | 34 +-
drivers/pci/pci.h | 10 +-
drivers/pci/pcie/portdrv_core.c | 9 +-
drivers/pci/probe.c | 101 +-
drivers/pci/quirks.c | 11 +
drivers/pci/search.c | 1 -
drivers/pci/setup-bus.c | 251 +++--
drivers/pci/setup-irq.c | 1 -
drivers/pci/setup-res.c | 42 +-
drivers/pcmcia/cardbus.c | 3 +-
drivers/platform/x86/asus-wmi.c | 3 +-
drivers/platform/x86/eeepc-laptop.c | 3 +-
include/asm-generic/dma-coherent.h | 13 +-
include/linux/dma-mapping.h | 13 +-
include/linux/pci.h | 40 +-
include/linux/pci_ids.h | 3 -
include/linux/types.h | 1 +
kernel/resource.c | 7 +-
99 files changed, 2724 insertions(+), 830 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pci/host-generic-pci.txt
create mode 100644 Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
create mode 100644 Documentation/devicetree/bindings/pci/rcar-pci.txt
create mode 100644 drivers/pci/host/pci-host-generic.c
create mode 100644 drivers/pci/host/pcie-rcar.c
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