Merge tag 'pci-v4.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas: - move pci_uevent_ers() out of pci.h (Michael Ellerman) - skip ASPM common clock warning if BIOS already configured it (Sinan Kaya) - fix ASPM Coverity warning about threshold_ns (Gustavo A. R. Silva) - remove last user of pci_get_bus_and_slot() and the function itself (Sinan Kaya) - add decoding for 16 GT/s link speed (Jay Fang) - add interfaces to get max link speed and width (Tal Gilboa) - add pcie_bandwidth_capable() to compute max supported link bandwidth (Tal Gilboa) - add pcie_bandwidth_available() to compute bandwidth available to device (Tal Gilboa) - add pcie_print_link_status() to log link speed and whether it's limited (Tal Gilboa) - use PCI core interfaces to report when device performance may be limited by its slot instead of doing it in each driver (Tal Gilboa) - fix possible cpqphp NULL pointer dereference (Shawn Lin) - rescan more of the hierarchy on ACPI hotplug to fix Thunderbolt/xHCI hotplug (Mika Westerberg) - add support for PCI I/O port space that's neither directly accessible via CPU in/out instructions nor directly mapped into CPU physical memory space. This is fairly intrusive and includes minor changes to interfaces used for I/O space on most platforms (Zhichang Yuan, John Garry) - add support for HiSilicon Hip06/Hip07 LPC I/O space (Zhichang Yuan, John Garry) - use PCI_EXP_DEVCTL2_COMP_TIMEOUT in rapidio/tsi721 (Bjorn Helgaas) - remove possible NULL pointer dereference in of_pci_bus_find_domain_nr() (Shawn Lin) - report quirk timings with dev_info (Bjorn Helgaas) - report quirks that take longer than 10ms (Bjorn Helgaas) - add and use Altera Vendor ID (Johannes Thumshirn) - tidy Makefiles and comments (Bjorn Helgaas) - don't set up INTx if MSI or MSI-X is enabled to align cris, frv, ia64, and mn10300 with x86 (Bjorn Helgaas) - move pcieport_if.h to drivers/pci/pcie/ to encapsulate it (Frederick Lawler) - merge pcieport_if.h into portdrv.h (Bjorn Helgaas) - move workaround for BIOS PME issue from portdrv to PCI core (Bjorn Helgaas) - completely disable portdrv with "pcie_ports=compat" (Bjorn Helgaas) - remove portdrv link order dependency (Bjorn Helgaas) - remove support for unused VC portdrv service (Bjorn Helgaas) - simplify portdrv feature permission checking (Bjorn Helgaas) - remove "pcie_hp=nomsi" parameter (use "pci=nomsi" instead) (Bjorn Helgaas) - remove unnecessary "pcie_ports=auto" parameter (Bjorn Helgaas) - use cached AER capability offset (Frederick Lawler) - don't enable DPC if BIOS hasn't granted AER control (Mika Westerberg) - rename pcie-dpc.c to dpc.c (Bjorn Helgaas) - use generic pci_mmap_resource_range() instead of powerpc and xtensa arch-specific versions (David Woodhouse) - support arbitrary PCI host bridge offsets on sparc (Yinghai Lu) - remove System and Video ROM reservations on sparc (Bjorn Helgaas) - probe for device reset support during enumeration instead of runtime (Bjorn Helgaas) - add ACS quirk for Ampere (née APM) root ports (Feng Kan) - add function 1 DMA alias quirk for Marvell 88SE9220 (Thomas Vincent-Cross) - protect device restore with device lock (Sinan Kaya) - handle failure of FLR gracefully (Sinan Kaya) - handle CRS (config retry status) after device resets (Sinan Kaya) - skip various config reads for SR-IOV VFs as an optimization (KarimAllah Ahmed) - consolidate VPD code in vpd.c (Bjorn Helgaas) - add Tegra dependency on PCI_MSI_IRQ_DOMAIN (Arnd Bergmann) - add DT support for R-Car r8a7743 (Biju Das) - fix a PCI_EJECT vs PCI_BUS_RELATIONS race condition in Hyper-V host bridge driver that causes a general protection fault (Dexuan Cui) - fix Hyper-V host bridge hang in MSI setup on 1-vCPU VMs with SR-IOV (Dexuan Cui) - fix Hyper-V host bridge hang when ejecting a VF before setting up MSI (Dexuan Cui) - make several structures static (Fengguang Wu) - increase number of MSI IRQs supported by Synopsys DesignWare bridges from 32 to 256 (Gustavo Pimentel) - implemented multiplexed IRQ domain API and remove obsolete MSI IRQ API from DesignWare drivers (Gustavo Pimentel) - add Tegra power management support (Manikanta Maddireddy) - add Tegra loadable module support (Manikanta Maddireddy) - handle 64-bit BARs correctly in endpoint support (Niklas Cassel) - support optional regulator for HiSilicon STB (Shawn Guo) - use regulator bulk API for Qualcomm apq8064 (Srinivas Kandagatla) - support power supplies for Qualcomm msm8996 (Srinivas Kandagatla) * tag 'pci-v4.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (123 commits) MAINTAINERS: Add John Garry as maintainer for HiSilicon LPC driver HISI LPC: Add ACPI support ACPI / scan: Do not enumerate Indirect IO host children ACPI / scan: Rename acpi_is_serial_bus_slave() for more general use HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings of: Add missing I/O range exception for indirect-IO devices PCI: Apply the new generic I/O management on PCI IO hosts PCI: Add fwnode handler as input param of pci_register_io_range() PCI: Remove __weak tag from pci_register_io_range() MAINTAINERS: Add missing /drivers/pci/cadence directory entry fm10k: Report PCIe link properties with pcie_print_link_status() net/mlx5e: Use pcie_bandwidth_available() to compute bandwidth net/mlx5: Report PCIe link properties with pcie_print_link_status() net/mlx4_core: Report PCIe link properties with pcie_print_link_status() PCI: Add pcie_print_link_status() to log link speed and whether it's limited PCI: Add pcie_bandwidth_available() to compute bandwidth available to device misc: pci_endpoint_test: Handle 64-bit BARs properly PCI: designware-ep: Make dw_pcie_ep_reset_bar() handle 64-bit BARs properly PCI: endpoint: Make sure that BAR_5 does not have 64-bit flag set when clearing PCI: endpoint: Make epc->ops->clear_bar()/pci_epc_clear_bar() take struct *epf_bar ...
此提交包含在：
Linus Torvalds
@@ -1525,11 +1525,25 @@ static int acpi_check_serial_bus_slave(struct acpi_resource *ares, void *data)
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return -1;
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}
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static bool acpi_is_serial_bus_slave(struct acpi_device *device)
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static bool acpi_is_indirect_io_slave(struct acpi_device *device)
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{
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struct acpi_device *parent = device->parent;
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const struct acpi_device_id indirect_io_hosts[] = {
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{"HISI0191", 0},
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{}
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};
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return parent && !acpi_match_device_ids(parent, indirect_io_hosts);
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}
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static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
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{
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struct list_head resource_list;
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bool is_serial_bus_slave = false;
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if (acpi_is_indirect_io_slave(device))
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return true;
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/* Macs use device properties in lieu of _CRS resources */
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if (x86_apple_machine &&
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(fwnode_property_present(&device->fwnode, "spiSclkPeriod") ||
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@@ -1561,7 +1575,8 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
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acpi_bus_get_flags(device);
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device->flags.match_driver = false;
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device->flags.initialized = true;
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device->flags.serial_bus_slave = acpi_is_serial_bus_slave(device);
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device->flags.enumeration_by_parent =
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acpi_device_enumeration_by_parent(device);
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acpi_device_clear_enumerated(device);
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device_initialize(&device->dev);
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dev_set_uevent_suppress(&device->dev, true);
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@@ -1859,10 +1874,10 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
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static void acpi_default_enumeration(struct acpi_device *device)
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{
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/*
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* Do not enumerate SPI/I2C/UART slaves as they will be enumerated by
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* their respective parents.
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* Do not enumerate devices with enumeration_by_parent flag set as
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* they will be enumerated by their respective parents.
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*/
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if (!device->flags.serial_bus_slave) {
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if (!device->flags.enumeration_by_parent) {
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acpi_create_platform_device(device, NULL);
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acpi_device_set_enumerated(device);
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} else {
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@@ -1959,7 +1974,7 @@ static void acpi_bus_attach(struct acpi_device *device)
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return;
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device->flags.match_driver = true;
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if (ret > 0 && !device->flags.serial_bus_slave) {
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if (ret > 0 && !device->flags.enumeration_by_parent) {
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acpi_device_set_enumerated(device);
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goto ok;
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}
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@@ -1968,10 +1983,10 @@ static void acpi_bus_attach(struct acpi_device *device)
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if (ret < 0)
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return;
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if (!device->pnp.type.platform_id && !device->flags.serial_bus_slave)
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acpi_device_set_enumerated(device);
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else
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if (device->pnp.type.platform_id || device->flags.enumeration_by_parent)
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acpi_default_enumeration(device);
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else
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acpi_device_set_enumerated(device);
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ok:
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list_for_each_entry(child, &device->children, node)
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