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pci-v4.17-changes

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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
  ...
This commit is contained in:
Linus Torvalds 2018-04-06 18:31:06 -07:00
commit 3c0d551e02
118 changed files with 3491 additions and 2365 deletions
Download patch file Download diff file Expand all files Collapse all files

21
drivers/acpi/pci_root.c
View file

@ -729,7 +729,8 @@ next:
}
}
static void acpi_pci_root_remap_iospace(struct resource_entry *entry)
static void acpi_pci_root_remap_iospace(struct fwnode_handle *fwnode,
struct resource_entry *entry)
{
#ifdef PCI_IOBASE
struct resource *res = entry->res;
@ -738,7 +739,7 @@ static void acpi_pci_root_remap_iospace(struct resource_entry *entry)
resource_size_t length = resource_size(res);
unsigned long port;
if (pci_register_io_range(cpu_addr, length))
if (pci_register_io_range(fwnode, cpu_addr, length))
goto err;
port = pci_address_to_pio(cpu_addr);
@ -780,7 +781,8 @@ int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info)
else {
resource_list_for_each_entry_safe(entry, tmp, list) {
if (entry->res->flags & IORESOURCE_IO)
acpi_pci_root_remap_iospace(entry);
acpi_pci_root_remap_iospace(&device->fwnode,
entry);
if (entry->res->flags & IORESOURCE_DISABLED)
resource_list_destroy_entry(entry);
@ -871,6 +873,7 @@ struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
struct acpi_device *device = root->device;
int node = acpi_get_node(device->handle);
struct pci_bus *bus;
struct pci_host_bridge *host_bridge;
info->root = root;
info->bridge = device;
@ -895,9 +898,17 @@ struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
if (!bus)
goto out_release_info;
host_bridge = to_pci_host_bridge(bus->bridge);
if (!(root->osc_control_set & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL))
host_bridge->native_hotplug = 0;
if (!(root->osc_control_set & OSC_PCI_EXPRESS_AER_CONTROL))
host_bridge->native_aer = 0;
if (!(root->osc_control_set & OSC_PCI_EXPRESS_PME_CONTROL))
host_bridge->native_pme = 0;
pci_scan_child_bus(bus);
pci_set_host_bridge_release(to_pci_host_bridge(bus->bridge),
acpi_pci_root_release_info, info);
pci_set_host_bridge_release(host_bridge, acpi_pci_root_release_info,
info);
if (node != NUMA_NO_NODE)
dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node);
return bus;

33
drivers/acpi/scan.c
View file

@ -1525,11 +1525,25 @@ static int acpi_check_serial_bus_slave(struct acpi_resource *ares, void *data)
return -1;
}
static bool acpi_is_serial_bus_slave(struct acpi_device *device)
static bool acpi_is_indirect_io_slave(struct acpi_device *device)
{
struct acpi_device *parent = device->parent;
const struct acpi_device_id indirect_io_hosts[] = {
{"HISI0191", 0},
{}
};
return parent && !acpi_match_device_ids(parent, indirect_io_hosts);
}
static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
{
struct list_head resource_list;
bool is_serial_bus_slave = false;
if (acpi_is_indirect_io_slave(device))
return true;
/* Macs use device properties in lieu of _CRS resources */
if (x86_apple_machine &&
(fwnode_property_present(&device->fwnode, "spiSclkPeriod") ||
@ -1561,7 +1575,8 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
acpi_bus_get_flags(device);
device->flags.match_driver = false;
device->flags.initialized = true;
device->flags.serial_bus_slave = acpi_is_serial_bus_slave(device);
device->flags.enumeration_by_parent =
acpi_device_enumeration_by_parent(device);
acpi_device_clear_enumerated(device);
device_initialize(&device->dev);
dev_set_uevent_suppress(&device->dev, true);
@ -1859,10 +1874,10 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
static void acpi_default_enumeration(struct acpi_device *device)
{
/*
* Do not enumerate SPI/I2C/UART slaves as they will be enumerated by
* their respective parents.
* Do not enumerate devices with enumeration_by_parent flag set as
* they will be enumerated by their respective parents.
*/
if (!device->flags.serial_bus_slave) {
if (!device->flags.enumeration_by_parent) {
acpi_create_platform_device(device, NULL);
acpi_device_set_enumerated(device);
} else {
@ -1959,7 +1974,7 @@ static void acpi_bus_attach(struct acpi_device *device)
return;
device->flags.match_driver = true;
if (ret > 0 && !device->flags.serial_bus_slave) {
if (ret > 0 && !device->flags.enumeration_by_parent) {
acpi_device_set_enumerated(device);
goto ok;
}
@ -1968,10 +1983,10 @@ static void acpi_bus_attach(struct acpi_device *device)
if (ret < 0)
return;
if (!device->pnp.type.platform_id && !device->flags.serial_bus_slave)
acpi_device_set_enumerated(device);
else
if (device->pnp.type.platform_id || device->flags.enumeration_by_parent)
acpi_default_enumeration(device);
else
acpi_device_set_enumerated(device);
ok:
list_for_each_entry(child, &device->children, node)