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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 00:39:28 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 00:39:28 (GMT)
commite1ba84597c9012b9f9075aac283ac7537d7561ba (patch)
tree41ab1a74c71ce55e72ef73424346e8e0a7f4616e /arch/powerpc
parent60eaa0190f6b39dce18eb1975d9773ed8bc9a534 (diff)
parentcef09b808e584c13b7126b83dc37c80b00234137 (diff)
Merge tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas: "PCI changes for the v3.14 merge window: Resource management - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas) - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu) - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas) - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas) - Enforce bus address limits in resource allocation (Yinghai Lu) - Allocate 64-bit BARs above 4G when possible (Yinghai Lu) - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu) PCI device hotplug - Major rescan/remove locking update (Rafael J. Wysocki) - Make ioapic builtin only (not modular) (Yinghai Lu) - Fix release/free issues (Yinghai Lu) - Clean up pciehp (Bjorn Helgaas) - Announce pciehp slot info during enumeration (Bjorn Helgaas) MSI - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev) - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev) - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev) - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman) - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong) SR-IOV - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao) Virtualization - Add support for save/restore of extended capabilities (Alex Williamson) - Add Virtual Channel to save/restore support (Alex Williamson) - Never treat a VF as a multifunction device (Alex Williamson) - Add pci_try_reset_function(), et al (Alex Williamson) AER - Ignore non-PCIe error sources (Betty Dall) - Support ACPI HEST error sources for domains other than 0 (Betty Dall) - Consolidate HEST error source parsers (Bjorn Helgaas) - Add a TLP header print helper (Borislav Petkov) Freescale i.MX6 - Remove unnecessary code (Fabio Estevam) - Make reset-gpio optional (Marek Vasut) - Report "link up" only after link training completes (Marek Vasut) - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut) - Fix PCIe startup code (Richard Zhu) Marvell MVEBU - Remove duplicate of_clk_get_by_name() call (Andrew Lunn) - Drop writes to bridge Secondary Status register (Jason Gunthorpe) - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe) - Support a bridge with no IO port window (Jason Gunthorpe) - Use max_t() instead of max(resource_size_t,) (Jingoo Han) - Remove redundant of_match_ptr (Sachin Kamat) - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni) NVIDIA Tegra - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower) Renesas R-Car - Add runtime PM support (Valentine Barshak) - Fix rcar_pci_probe() return value check (Wei Yongjun) Synopsys DesignWare - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen) - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen) - Fix missing MSI IRQs (Harro Haan) - Add dw_pcie prefix before cfg_read/write (Pratyush Anand) - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand) - Whitespace cleanup (Jingoo Han) EISA - Call put_device() if device_register() fails (Levente Kurusa) - Revert EISA initialization breakage ((Bjorn Helgaas) Miscellaneous - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger) - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas) - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas) - Use dev_is_pci() to identify PCI devices (Yijing Wang) - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches) - Update documentation 00-INDEX (Erik Ekman)" * tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (119 commits) Revert "EISA: Initialize device before its resources" Revert "EISA: Log device resources in dmesg" vfio-pci: Use pci "try" reset interface PCI: Check parent kobject in pci_destroy_dev() xen/pcifront: Use global PCI rescan-remove locking powerpc/eeh: Use global PCI rescan-remove locking PCI: Fix pci_check_and_unmask_intx() comment typos PCI: Add pci_try_reset_function(), pci_try_reset_slot(), pci_try_reset_bus() MPT / PCI: Use pci_stop_and_remove_bus_device_locked() platform / x86: Use global PCI rescan-remove locking PCI: hotplug: Use global PCI rescan-remove locking pcmcia: Use global PCI rescan-remove locking ACPI / hotplug / PCI: Use global PCI rescan-remove locking ACPI / PCI: Use global PCI rescan-remove locking in PCI root hotplug PCI: Add global pci_lock_rescan_remove() PCI: Cleanup pci.h whitespace PCI: Reorder so actual code comes before stubs PCI/AER: Support ACPI HEST AER error sources for PCI domains other than 0 ACPICA: Add helper macros to extract bus/segment numbers from HEST table. PCI: Make local functions static ...
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/eeh_driver.c19
-rw-r--r--arch/powerpc/kernel/pci-common.c4
-rw-r--r--arch/powerpc/kernel/pci_of_scan.c4
3 files changed, 20 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index 36bed5a..c17f90d 100644
--- a/arch/powerpc/kernel/eeh_driver.c
+++ b/arch/powerpc/kernel/eeh_driver.c
@@ -369,7 +369,9 @@ static void *eeh_rmv_device(void *data, void *userdata)
edev->mode |= EEH_DEV_DISCONNECTED;
(*removed)++;
+ pci_lock_rescan_remove();
pci_stop_and_remove_bus_device(dev);
+ pci_unlock_rescan_remove();
return NULL;
}
@@ -416,10 +418,13 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus)
* into pcibios_add_pci_devices().
*/
eeh_pe_state_mark(pe, EEH_PE_KEEP);
- if (bus)
+ if (bus) {
+ pci_lock_rescan_remove();
pcibios_remove_pci_devices(bus);
- else if (frozen_bus)
+ pci_unlock_rescan_remove();
+ } else if (frozen_bus) {
eeh_pe_dev_traverse(pe, eeh_rmv_device, &removed);
+ }
/* Reset the pci controller. (Asserts RST#; resets config space).
* Reconfigure bridges and devices. Don't try to bring the system
@@ -429,6 +434,8 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus)
if (rc)
return rc;
+ pci_lock_rescan_remove();
+
/* Restore PE */
eeh_ops->configure_bridge(pe);
eeh_pe_restore_bars(pe);
@@ -462,6 +469,7 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus)
pe->tstamp = tstamp;
pe->freeze_count = cnt;
+ pci_unlock_rescan_remove();
return 0;
}
@@ -618,8 +626,11 @@ perm_error:
eeh_pe_dev_traverse(pe, eeh_report_failure, NULL);
/* Shut down the device drivers for good. */
- if (frozen_bus)
+ if (frozen_bus) {
+ pci_lock_rescan_remove();
pcibios_remove_pci_devices(frozen_bus);
+ pci_unlock_rescan_remove();
+ }
}
static void eeh_handle_special_event(void)
@@ -692,6 +703,7 @@ static void eeh_handle_special_event(void)
if (rc == 2 || rc == 1)
eeh_handle_normal_event(pe);
else {
+ pci_lock_rescan_remove();
list_for_each_entry_safe(hose, tmp,
&hose_list, list_node) {
phb_pe = eeh_phb_pe_get(hose);
@@ -703,6 +715,7 @@ static void eeh_handle_special_event(void)
eeh_pe_dev_traverse(pe, eeh_report_failure, NULL);
pcibios_remove_pci_devices(bus);
}
+ pci_unlock_rescan_remove();
}
}
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index a1e3e40..d9476c1 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -835,7 +835,7 @@ static void pcibios_fixup_resources(struct pci_dev *dev)
* at 0 as unset as well, except if PCI_PROBE_ONLY is also set
* since in that case, we don't want to re-assign anything
*/
- pcibios_resource_to_bus(dev, &reg, res);
+ pcibios_resource_to_bus(dev->bus, &reg, res);
if (pci_has_flag(PCI_REASSIGN_ALL_RSRC) ||
(reg.start == 0 && !pci_has_flag(PCI_PROBE_ONLY))) {
/* Only print message if not re-assigning */
@@ -886,7 +886,7 @@ static int pcibios_uninitialized_bridge_resource(struct pci_bus *bus,
/* Job is a bit different between memory and IO */
if (res->flags & IORESOURCE_MEM) {
- pcibios_resource_to_bus(dev, &region, res);
+ pcibios_resource_to_bus(dev->bus, &region, res);
/* If the BAR is non-0 then it's probably been initialized */
if (region.start != 0)
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index ac0b034..83c26d8 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -111,7 +111,7 @@ static void of_pci_parse_addrs(struct device_node *node, struct pci_dev *dev)
res->name = pci_name(dev);
region.start = base;
region.end = base + size - 1;
- pcibios_bus_to_resource(dev, res, &region);
+ pcibios_bus_to_resource(dev->bus, res, &region);
}
}
@@ -280,7 +280,7 @@ void of_scan_pci_bridge(struct pci_dev *dev)
res->flags = flags;
region.start = of_read_number(&ranges[1], 2);
region.end = region.start + size - 1;
- pcibios_bus_to_resource(dev, res, &region);
+ pcibios_bus_to_resource(dev->bus, res, &region);
}
sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus),
bus->number);

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