Merge tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...

Pull PCI updates from Bjorn Helgaas:

 - Fix ASPM link_state teardown on removal (Lukas Wunner)

 - Fix misleading _OSC ASPM message (Sinan Kaya)

 - Make _OSC optional for PCI (Sinan Kaya)

 - Don't initialize ASPM link state when ACPI_FADT_NO_ASPM is set
   (Patrick Talbert)

 - Remove x86 and arm64 node-local allocation for host bridge structures
   (Punit Agrawal)

 - Pay attention to device-specific _PXM node values (Jonathan Cameron)

 - Support new Immediate Readiness bit (Felipe Balbi)

 - Differentiate between pciehp surprise and safe removal (Lukas Wunner)

 - Remove unnecessary pciehp includes (Lukas Wunner)

 - Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner)

 - Tolerate PCIe Slot Presence Detect being hardwired to zero to
   workaround broken hardware, e.g., the Wilocity switch/wireless device
   (Lukas Wunner)

 - Unify pciehp controller & slot structs (Lukas Wunner)

 - Constify hotplug_slot_ops (Lukas Wunner)

 - Drop hotplug_slot_info (Lukas Wunner)

 - Embed hotplug_slot struct into users instead of allocating it
   separately (Lukas Wunner)

 - Initialize PCIe port service drivers directly instead of relying on
   initcall ordering (Keith Busch)

 - Restore PCI config state after a slot reset (Keith Busch)

 - Save/restore DPC config state along with other PCI config state
   (Keith Busch)

 - Reference count devices during AER handling to avoid race issue with
   concurrent hot removal (Keith Busch)

 - If an Upstream Port reports ERR_FATAL, don't try to read the Port's
   config space because it is probably unreachable (Keith Busch)

 - During error handling, use slot-specific reset instead of secondary
   bus reset to avoid link up/down issues on hotplug ports (Keith Busch)

 - Restore previous AER/DPC handling that does not remove and
   re-enumerate devices on ERR_FATAL (Keith Busch)

 - Notify all drivers that may be affected by error recovery resets
   (Keith Busch)

 - Always generate error recovery uevents, even if a driver doesn't have
   error callbacks (Keith Busch)

 - Make PCIe link active reporting detection generic (Keith Busch)

 - Support D3cold in PCIe hierarchies during system sleep and runtime,
   including hotplug and Thunderbolt ports (Mika Westerberg)

 - Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots
   are empty or occupied (Jon Derrick)

 - Remove duplicated include from pci/pcie/err.c and unused variable
   from cpqphp (YueHaibing)

 - Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza
   Pawandeep)

 - Uninline PCI bus accessors for better ftracing (Keith Busch)

 - Remove unused AER Root Port .error_resume method (Keith Busch)

 - Use kfifo in AER instead of a local version (Keith Busch)

 - Use threaded IRQ in AER bottom half (Keith Busch)

 - Use managed resources in AER core (Keith Busch)

 - Reuse pcie_port_find_device() for AER injection (Keith Busch)

 - Abstract AER interrupt handling to disconnect error injection (Keith
   Busch)

 - Refactor AER injection callbacks to simplify future improvments
   (Keith Busch)

 - Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski)

 - Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko)

 - Add switch fall-through annotations (Gustavo A. R. Silva)

 - Remove unused Switchtec quirk variable (Joshua Abraham)

 - Fix pci.c kernel-doc warning (Randy Dunlap)

 - Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig)

 - Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng)

 - Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid
   useless dmesg errors (Logan Gunthorpe)

 - Update Switchtec NTB documentation (Wesley Yung)

 - Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz)

 - Avoid panic when drivers enable MSI/MSI-X twice (Tonghao Zhang)

 - Add PCI support for peer-to-peer DMA (Logan Gunthorpe)

 - Add sysfs group for PCI peer-to-peer memory statistics (Logan
   Gunthorpe)

 - Add PCI peer-to-peer DMA scatterlist mapping interface (Logan
   Gunthorpe)

 - Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan
   Gunthorpe)

 - Add PCI peer-to-peer DMA driver writer's documentation (Logan
   Gunthorpe)

 - Add block layer flag to indicate driver support for PCI peer-to-peer
   DMA (Logan Gunthorpe)

 - Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P
   memory (Logan Gunthorpe)

 - Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan
   Gunthorpe)

 - Add nvme-pci support for PCI peer-to-peer memory in requests (Logan
   Gunthorpe)

 - Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise,
   Christoph Hellwig, Logan Gunthorpe)

 - Cache VF config space size to optimize enumeration of many VFs
   (KarimAllah Ahmed)

 - Remove unnecessary <linux/pci-ats.h> include (Bjorn Helgaas)

 - Fix VMD AERSID quirk Device ID matching (Jon Derrick)

 - Fix Cadence PHY handling during probe (Alan Douglas)

 - Signal Cadence Endpoint interrupts via AXI region 0 instead of last
   region (Alan Douglas)

 - Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan
   Douglas)

 - Remove redundant controller tests for "device_type == pci" (Rob
   Herring)

 - Document R-Car E3 (R8A77990) bindings (Tho Vu)

 - Add device tree support for R-Car r8a7744 (Biju Das)

 - Drop unused mvebu PCIe capability code (Thomas Petazzoni)

 - Add shared PCI bridge emulation code (Thomas Petazzoni)

 - Convert mvebu to use shared PCI bridge emulation (Thomas Petazzoni)

 - Add aardvark Root Port emulation (Thomas Petazzoni)

 - Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach)

 - Add initial power management for i.MX7 (Leonard Crestez)

 - Add PME_Turn_Off support for i.MX7 (Leonard Crestez)

 - Fix qcom runtime power management error handling (Bjorn Andersson)

 - Update TI dra7xx unaligned access errata workaround for host mode as
   well as endpoint mode (Vignesh R)

 - Fix kirin section mismatch warning (Nathan Chancellor)

 - Remove iproc PAXC slot check to allow VF support (Jitendra Bhivare)

 - Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I)

 - Update Keystone to use MRRS quirk for host bridge instead of open
   coding (Kishon Vijay Abraham I)

 - Refactor Keystone link establishment (Kishon Vijay Abraham I)

 - Simplify and speed up Keystone link training (Kishon Vijay Abraham I)

 - Remove unused Keystone host_init argument (Kishon Vijay Abraham I)

 - Merge Keystone driver files into one (Kishon Vijay Abraham I)

 - Remove redundant Keystone platform_set_drvdata() (Kishon Vijay
   Abraham I)

 - Rename Keystone functions for uniformity (Kishon Vijay Abraham I)

 - Add Keystone device control module DT binding (Kishon Vijay Abraham
   I)

 - Use SYSCON API to get Keystone control module device IDs (Kishon
   Vijay Abraham I)

 - Clean up Keystone PHY handling (Kishon Vijay Abraham I)

 - Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I)

 - Clean up Keystone config space access checks (Kishon Vijay Abraham I)

 - Get Keystone outbound window count from DT (Kishon Vijay Abraham I)

 - Clean up Keystone outbound window configuration (Kishon Vijay Abraham
   I)

 - Clean up Keystone DBI setup (Kishon Vijay Abraham I)

 - Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I)

 - Fix Keystone IRQ status checking (Kishon Vijay Abraham I)

 - Add debug messages for all Keystone errors (Kishon Vijay Abraham I)

 - Clean up Keystone includes and macros (Kishon Vijay Abraham I)

 - Fix Mediatek unchecked return value from devm_pci_remap_iospace()
   (Gustavo A. R. Silva)

 - Fix Mediatek endpoint/port matching logic (Honghui Zhang)

 - Change Mediatek Root Port Class Code to PCI_CLASS_BRIDGE_PCI (Honghui
   Zhang)

 - Remove redundant Mediatek PM domain check (Honghui Zhang)

 - Convert Mediatek to pci_host_probe() (Honghui Zhang)

 - Fix Mediatek MSI enablement (Honghui Zhang)

 - Add Mediatek system PM support for MT2712 and MT7622 (Honghui Zhang)

 - Add Mediatek loadable module support (Honghui Zhang)

 - Detach VMD resources after stopping root bus to prevent orphan
   resources (Jon Derrick)

 - Convert pcitest build process to that used by other tools (iio, perf,
   etc) (Gustavo Pimentel)

* tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
  PCI/AER: Refactor error injection fallbacks
  PCI/AER: Abstract AER interrupt handling
  PCI/AER: Reuse existing pcie_port_find_device() interface
  PCI/AER: Use managed resource allocations
  PCI: pcie: Remove redundant 'default n' from Kconfig
  PCI: aardvark: Implement emulated root PCI bridge config space
  PCI: mvebu: Convert to PCI emulated bridge config space
  PCI: mvebu: Drop unused PCI express capability code
  PCI: Introduce PCI bridge emulated config space common logic
  PCI: vmd: Detach resources after stopping root bus
  nvmet: Optionally use PCI P2P memory
  nvmet: Introduce helper functions to allocate and free request SGLs
  nvme-pci: Add support for P2P memory in requests
  nvme-pci: Use PCI p2pmem subsystem to manage the CMB
  IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]()
  block: Add PCI P2P flag for request queue
  PCI/P2PDMA: Add P2P DMA driver writer's documentation
  docs-rst: Add a new directory for PCI documentation
  PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers
  PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset
  ...

diff --cc Documentation/driver-api/index.rst
index 1f0cdba2b2bfd0c45ce6c33410e84ca6096c4ecd,e9e7d24169cf135b0b98ecb23de8495c205dc066..909f991b4c0d2e40b91b98ad5bbcee39379fbb3e
--- 1/Documentation/driver-api/index.rst
--- 2/Documentation/driver-api/index.rst
+++ b/Documentation/driver-api/index.rst
@@@ -29,8 -29,7 +29,8 @@@ available subsections can be seen below
     iio/index
     input
     usb/index
-    pci
 +   firewire
+    pci/index
     spi
     i2c
     hsi

diff --cc MAINTAINERS
Simple merge

diff --cc drivers/acpi/x86/apple.c
Simple merge

diff --cc drivers/block/rsxx/core.c
index 639051502181745cf2768c1fafa50d6b9a7e4396,37df486c7c3c342af440171d0a0a054976004329..0cf4509d575ce08a535e07a151ce5765bf29c1e6
--- 1/drivers/block/rsxx/core.c
--- 2/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@@ -780,9 -780,9 +780,9 @@@ static int rsxx_pci_probe(struct pci_de
                goto failed_enable;
  
        pci_set_master(dev);
-       pci_set_dma_max_seg_size(dev, RSXX_HW_BLK_SIZE);
+       dma_set_max_seg_size(&dev->dev, RSXX_HW_BLK_SIZE);
  
 -      st = pci_set_dma_mask(dev, DMA_BIT_MASK(64));
 +      st = dma_set_mask(&dev->dev, DMA_BIT_MASK(64));
        if (st) {
                dev_err(CARD_TO_DEV(card),
                        "No usable DMA configuration,aborting\n");

diff --cc drivers/dma/ioat/init.c
Simple merge

diff --cc drivers/gpio/gpiolib-acpi.c
Simple merge

diff --cc drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
Simple merge

diff --cc drivers/net/ethernet/broadcom/bnxt/bnxt.c
Simple merge

diff --cc drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
Simple merge

diff --cc drivers/net/ethernet/emulex/benet/be_main.c
Simple merge

diff --cc drivers/net/ethernet/intel/e1000e/netdev.c
Simple merge

diff --cc drivers/net/ethernet/intel/fm10k/fm10k_pci.c
Simple merge

diff --cc drivers/net/ethernet/intel/i40e/i40e_main.c
Simple merge

diff --cc drivers/net/ethernet/intel/igb/igb_main.c
Simple merge

diff --cc drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
Simple merge

diff --cc drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
Simple merge

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
Simple merge

diff --cc drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
Simple merge

diff --cc drivers/net/ethernet/sfc/efx.c
Simple merge

diff --cc drivers/net/ethernet/sfc/falcon/efx.c
Simple merge

diff --cc drivers/nvme/host/core.c
Simple merge

diff --cc drivers/nvme/host/nvme.h
Simple merge

diff --cc drivers/nvme/host/pci.c
Simple merge

diff --cc drivers/nvme/target/core.c
Simple merge

diff --cc drivers/nvme/target/io-cmd-bdev.c
Simple merge

diff --cc drivers/nvme/target/nvmet.h
Simple merge

diff --cc drivers/nvme/target/rdma.c
Simple merge

diff --cc drivers/pci/controller/dwc/pcie-designware.h
Simple merge

diff --cc drivers/pci/controller/pci-mvebu.c
Simple merge

diff --cc drivers/pci/controller/pcie-cadence.c
Simple merge

diff --cc drivers/pci/controller/vmd.c
Simple merge

diff --cc drivers/pci/pci.c
Simple merge

diff --cc include/acpi/acpi_bus.h
Simple merge

diff --cc include/linux/acpi.h
Simple merge

diff --cc include/linux/blkdev.h
index 61207560e826ddfa71ef4344d0fe4061490a97cd,c32f7171899be46fb82edae93c6ab78ed19c2a26..7d423721b3278358717584a7c9cb01f9949f73d7
--- 1/include/linux/blkdev.h
--- 2/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@@ -704,6 -698,8 +704,7 @@@ struct request_queue 
  #define QUEUE_FLAG_REGISTERED  26     /* queue has been registered to a disk */
  #define QUEUE_FLAG_SCSI_PASSTHROUGH 27        /* queue supports SCSI commands */
  #define QUEUE_FLAG_QUIESCED    28     /* queue has been quiesced */
 -#define QUEUE_FLAG_PREEMPT_ONLY       29      /* only process REQ_PREEMPT requests */
 -#define QUEUE_FLAG_PCI_P2PDMA  30     /* device supports PCI p2p requests */
++#define QUEUE_FLAG_PCI_P2PDMA  29     /* device supports PCI p2p requests */
  
  #define QUEUE_FLAG_DEFAULT    ((1 << QUEUE_FLAG_IO_STAT) |            \
                                 (1 << QUEUE_FLAG_SAME_COMP)    |       \

diff --cc include/linux/mm.h
Simple merge

diff --cc include/linux/pci.h
Simple merge

diff --cc include/linux/pci_ids.h
Simple merge