diff options
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 56 |
1 files changed, 50 insertions, 6 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 0e49f70dbd9b..e2d1a124216a 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -244,6 +244,7 @@ struct pci_cap_saved_state { struct pci_cap_saved_data cap; }; +struct irq_affinity; struct pcie_link_state; struct pci_vpd; struct pci_sriov; @@ -332,7 +333,6 @@ struct pci_dev { * directly, use the values stored here. They might be different! */ unsigned int irq; - struct cpumask *irq_affinity; struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */ bool match_driver; /* Skip attaching driver */ @@ -420,9 +420,13 @@ static inline int pci_channel_offline(struct pci_dev *pdev) struct pci_host_bridge { struct device dev; struct pci_bus *bus; /* root bus */ + struct pci_ops *ops; + void *sysdata; + int busnr; struct list_head windows; /* resource_entry */ void (*release_fn)(struct pci_host_bridge *); void *release_data; + struct msi_controller *msi; unsigned int ignore_reset_delay:1; /* for entire hierarchy */ /* Resource alignment requirements */ resource_size_t (*align_resource)(struct pci_dev *dev, @@ -430,10 +434,23 @@ struct pci_host_bridge { resource_size_t start, resource_size_t size, resource_size_t align); + unsigned long private[0] ____cacheline_aligned; }; #define to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev) +static inline void *pci_host_bridge_priv(struct pci_host_bridge *bridge) +{ + return (void *)bridge->private; +} + +static inline struct pci_host_bridge *pci_host_bridge_from_priv(void *priv) +{ + return container_of(priv, struct pci_host_bridge, private); +} + +struct pci_host_bridge *pci_alloc_host_bridge(size_t priv); +int pci_register_host_bridge(struct pci_host_bridge *bridge); struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus); void pci_set_host_bridge_release(struct pci_host_bridge *bridge, @@ -1310,8 +1327,10 @@ static inline int pci_enable_msix_exact(struct pci_dev *dev, return rc; return 0; } -int pci_alloc_irq_vectors(struct pci_dev *dev, unsigned int min_vecs, - unsigned int max_vecs, unsigned int flags); +int pci_alloc_irq_vectors_affinity(struct pci_dev *dev, unsigned int min_vecs, + unsigned int max_vecs, unsigned int flags, + const struct irq_affinity *affd); + void pci_free_irq_vectors(struct pci_dev *dev); int pci_irq_vector(struct pci_dev *dev, unsigned int nr); const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, int vec); @@ -1339,14 +1358,17 @@ static inline int pci_enable_msix_range(struct pci_dev *dev, static inline int pci_enable_msix_exact(struct pci_dev *dev, struct msix_entry *entries, int nvec) { return -ENOSYS; } -static inline int pci_alloc_irq_vectors(struct pci_dev *dev, - unsigned int min_vecs, unsigned int max_vecs, - unsigned int flags) + +static inline int +pci_alloc_irq_vectors_affinity(struct pci_dev *dev, unsigned int min_vecs, + unsigned int max_vecs, unsigned int flags, + const struct irq_affinity *aff_desc) { if (min_vecs > 1) return -EINVAL; return 1; } + static inline void pci_free_irq_vectors(struct pci_dev *dev) { } @@ -1364,6 +1386,14 @@ static inline const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, } #endif +static inline int +pci_alloc_irq_vectors(struct pci_dev *dev, unsigned int min_vecs, + unsigned int max_vecs, unsigned int flags) +{ + return pci_alloc_irq_vectors_affinity(dev, min_vecs, max_vecs, flags, + NULL); +} + #ifdef CONFIG_PCIEPORTBUS extern bool pcie_ports_disabled; extern bool pcie_ports_auto; @@ -1928,6 +1958,20 @@ static inline int pci_pcie_type(const struct pci_dev *dev) return (pcie_caps_reg(dev) & PCI_EXP_FLAGS_TYPE) >> 4; } +static inline struct pci_dev *pcie_find_root_port(struct pci_dev *dev) +{ + while (1) { + if (!pci_is_pcie(dev)) + break; + if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT) + return dev; + if (!dev->bus->self) + break; + dev = dev->bus->self; + } + return NULL; +} + void pci_request_acs(void); bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags); bool pci_acs_path_enabled(struct pci_dev *start, |