diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/hotplug/pciehp_core.c | 2 | ||||
| -rw-r--r-- | drivers/pci/intel-iommu.c | 7 | ||||
| -rw-r--r-- | drivers/pci/pci.c | 21 | ||||
| -rw-r--r-- | drivers/pci/quirks.c | 11 | ||||
| -rw-r--r-- | drivers/pci/setup-bus.c | 5 |
5 files changed, 14 insertions, 32 deletions
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index 7f4836b8e71..5fa4ba0d993 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -467,7 +467,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset); t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */ - if (value) { + if (value && pciehp_force) { rc = pciehp_enable_slot(t_slot); if (rc) /* -ENODEV: shouldn't happen, but deal with it */ value = 0; diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 977d29b3229..4cb949f0ebd 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1097,6 +1097,8 @@ static void iommu_free_domain(struct dmar_domain *domain) } static struct iova_domain reserved_iova_list; +static struct lock_class_key reserved_alloc_key; +static struct lock_class_key reserved_rbtree_key; static void dmar_init_reserved_ranges(void) { @@ -1107,6 +1109,11 @@ static void dmar_init_reserved_ranges(void) init_iova_domain(&reserved_iova_list, DMA_32BIT_PFN); + lockdep_set_class(&reserved_iova_list.iova_alloc_lock, + &reserved_alloc_key); + lockdep_set_class(&reserved_iova_list.iova_rbtree_lock, + &reserved_rbtree_key); + /* IOAPIC ranges shouldn't be accessed by DMA */ iova = reserve_iova(&reserved_iova_list, IOVA_PFN(IOAPIC_RANGE_START), IOVA_PFN(IOAPIC_RANGE_END)); diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 183fddaa38b..a4445b7210b 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -314,24 +314,6 @@ int pci_find_ht_capability(struct pci_dev *dev, int ht_cap) } EXPORT_SYMBOL_GPL(pci_find_ht_capability); -void pcie_wait_pending_transaction(struct pci_dev *dev) -{ - int pos; - u16 reg16; - - pos = pci_find_capability(dev, PCI_CAP_ID_EXP); - if (!pos) - return; - while (1) { - pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, ®16); - if (!(reg16 & PCI_EXP_DEVSTA_TRPND)) - break; - cpu_relax(); - } - -} -EXPORT_SYMBOL_GPL(pcie_wait_pending_transaction); - /** * pci_find_parent_resource - return resource region of parent bus of given region * @dev: PCI device structure contains resources to be searched @@ -936,9 +918,6 @@ pci_disable_device(struct pci_dev *dev) if (atomic_sub_return(1, &dev->enable_cnt) != 0) return; - /* Wait for all transactions are finished before disabling the device */ - pcie_wait_pending_transaction(dev); - pci_read_config_word(dev, PCI_COMMAND, &pci_command); if (pci_command & PCI_COMMAND_MASTER) { pci_command &= ~PCI_COMMAND_MASTER; diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index e9a333d9855..e887aa45c9c 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -951,6 +951,12 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_e * accesses to the SMBus registers, with potentially bad effects. Thus you * should be very careful when adding new entries: if SMM is accessing the * Intel SMBus, this is a very good reason to leave it hidden. + * + * Likewise, many recent laptops use ACPI for thermal management. If the + * ACPI DSDT code accesses the SMBus, then Linux should not access it + * natively, and keeping the SMBus hidden is the right thing to do. If you + * are about to add an entry in the table below, please first disassemble + * the DSDT and double-check that there is no code accessing the SMBus. */ static int asus_hides_smbus; @@ -1028,11 +1034,6 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev) case 0x12bf: /* HP xw4100 */ asus_hides_smbus = 1; } - else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) - switch (dev->subsystem_device) { - case 0x099c: /* HP Compaq nx6110 */ - asus_hides_smbus = 1; - } } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) { if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) switch(dev->subsystem_device) { diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 125e7b7f34f..f7cb8e0758b 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -486,12 +486,7 @@ void __ref pci_bus_size_bridges(struct pci_bus *bus) break; case PCI_CLASS_BRIDGE_PCI: - /* don't size subtractive decoding (transparent) - * PCI-to-PCI bridges */ - if (bus->self->transparent) - break; pci_bridge_check_ranges(bus); - /* fall through */ default: pbus_size_io(bus); /* If the bridge supports prefetchable range, size it |