diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci-acpi.h | 18 | ||||
| -rw-r--r-- | include/linux/pci-ecam.h | 25 | ||||
| -rw-r--r-- | include/linux/pci-epc.h | 38 | ||||
| -rw-r--r-- | include/linux/pci.h | 43 | ||||
| -rw-r--r-- | include/linux/pci_ids.h | 6 |
5 files changed, 80 insertions, 50 deletions
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 2d155bfb8fbf..5ba475ca9078 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -27,7 +27,7 @@ extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle); struct pci_ecam_ops; extern int pci_mcfg_lookup(struct acpi_pci_root *root, struct resource *cfgres, - struct pci_ecam_ops **ecam_ops); + const struct pci_ecam_ops **ecam_ops); static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev) { @@ -107,10 +107,12 @@ static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { } #endif extern const guid_t pci_acpi_dsm_guid; -#define IGNORE_PCI_BOOT_CONFIG_DSM 0x05 -#define DEVICE_LABEL_DSM 0x07 -#define RESET_DELAY_DSM 0x08 -#define FUNCTION_DELAY_DSM 0x09 + +/* _DSM Definitions for PCI */ +#define DSM_PCI_PRESERVE_BOOT_CONFIG 0x05 +#define DSM_PCI_DEVICE_NAME 0x07 +#define DSM_PCI_POWER_ON_RESET_DELAY 0x08 +#define DSM_PCI_DEVICE_READINESS_DURATIONS 0x09 #ifdef CONFIG_PCIE_EDR void pci_acpi_add_edr_notifier(struct pci_dev *pdev); @@ -125,10 +127,4 @@ static inline void acpi_pci_add_bus(struct pci_bus *bus) { } static inline void acpi_pci_remove_bus(struct pci_bus *bus) { } #endif /* CONFIG_ACPI */ -#ifdef CONFIG_ACPI_APEI -extern bool aer_acpi_firmware_first(void); -#else -static inline bool aer_acpi_firmware_first(void) { return false; } -#endif - #endif /* _PCI_ACPI_H_ */ diff --git a/include/linux/pci-ecam.h b/include/linux/pci-ecam.h index a73164c85e78..1af5cb02ef7f 100644 --- a/include/linux/pci-ecam.h +++ b/include/linux/pci-ecam.h @@ -29,7 +29,7 @@ struct pci_config_window { struct resource res; struct resource busr; void *priv; - struct pci_ecam_ops *ops; + const struct pci_ecam_ops *ops; union { void __iomem *win; /* 64-bit single mapping */ void __iomem **winp; /* 32-bit per-bus mapping */ @@ -40,29 +40,28 @@ struct pci_config_window { /* create and free pci_config_window */ struct pci_config_window *pci_ecam_create(struct device *dev, struct resource *cfgres, struct resource *busr, - struct pci_ecam_ops *ops); + const struct pci_ecam_ops *ops); void pci_ecam_free(struct pci_config_window *cfg); /* map_bus when ->sysdata is an instance of pci_config_window */ void __iomem *pci_ecam_map_bus(struct pci_bus *bus, unsigned int devfn, int where); /* default ECAM ops */ -extern struct pci_ecam_ops pci_generic_ecam_ops; +extern const struct pci_ecam_ops pci_generic_ecam_ops; #if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS) -extern struct pci_ecam_ops pci_32b_ops; /* 32-bit accesses only */ -extern struct pci_ecam_ops hisi_pcie_ops; /* HiSilicon */ -extern struct pci_ecam_ops thunder_pem_ecam_ops; /* Cavium ThunderX 1.x & 2.x */ -extern struct pci_ecam_ops pci_thunder_ecam_ops; /* Cavium ThunderX 1.x */ -extern struct pci_ecam_ops xgene_v1_pcie_ecam_ops; /* APM X-Gene PCIe v1 */ -extern struct pci_ecam_ops xgene_v2_pcie_ecam_ops; /* APM X-Gene PCIe v2.x */ -extern struct pci_ecam_ops al_pcie_ops; /* Amazon Annapurna Labs PCIe */ +extern const struct pci_ecam_ops pci_32b_ops; /* 32-bit accesses only */ +extern const struct pci_ecam_ops hisi_pcie_ops; /* HiSilicon */ +extern const struct pci_ecam_ops thunder_pem_ecam_ops; /* Cavium ThunderX 1.x & 2.x */ +extern const struct pci_ecam_ops pci_thunder_ecam_ops; /* Cavium ThunderX 1.x */ +extern const struct pci_ecam_ops xgene_v1_pcie_ecam_ops; /* APM X-Gene PCIe v1 */ +extern const struct pci_ecam_ops xgene_v2_pcie_ecam_ops; /* APM X-Gene PCIe v2.x */ +extern const struct pci_ecam_ops al_pcie_ops; /* Amazon Annapurna Labs PCIe */ #endif -#ifdef CONFIG_PCI_HOST_COMMON +#if IS_ENABLED(CONFIG_PCI_HOST_COMMON) /* for DT-based PCI controllers that support ECAM */ -int pci_host_common_probe(struct platform_device *pdev, - struct pci_ecam_ops *ops); +int pci_host_common_probe(struct platform_device *pdev); int pci_host_common_remove(struct platform_device *pdev); #endif #endif diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index e0ed9d01f6e5..cc66bec8be90 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -66,19 +66,27 @@ struct pci_epc_ops { }; /** + * struct pci_epc_mem_window - address window of the endpoint controller + * @phys_base: physical base address of the PCI address window + * @size: the size of the PCI address window + * @page_size: size of each page + */ +struct pci_epc_mem_window { + phys_addr_t phys_base; + size_t size; + size_t page_size; +}; + +/** * struct pci_epc_mem - address space of the endpoint controller - * @phys_base: physical base address of the PCI address space - * @size: the size of the PCI address space + * @window: address window of the endpoint controller * @bitmap: bitmap to manage the PCI address space * @pages: number of bits representing the address region - * @page_size: size of each page * @lock: mutex to protect bitmap */ struct pci_epc_mem { - phys_addr_t phys_base; - size_t size; + struct pci_epc_mem_window window; unsigned long *bitmap; - size_t page_size; int pages; /* mutex to protect against concurrent access for memory allocation*/ struct mutex lock; @@ -89,7 +97,11 @@ struct pci_epc_mem { * @dev: PCI EPC device * @pci_epf: list of endpoint functions present in this EPC device * @ops: function pointers for performing endpoint operations - * @mem: address space of the endpoint controller + * @windows: array of address space of the endpoint controller + * @mem: first window of the endpoint controller, which corresponds to + * default address space of the endpoint controller supporting + * single window. + * @num_windows: number of windows supported by device * @max_functions: max number of functions that can be configured in this EPC * @group: configfs group representing the PCI EPC device * @lock: mutex to protect pci_epc ops @@ -100,7 +112,9 @@ struct pci_epc { struct device dev; struct list_head pci_epf; const struct pci_epc_ops *ops; + struct pci_epc_mem **windows; struct pci_epc_mem *mem; + unsigned int num_windows; u8 max_functions; struct config_group *group; /* mutex to protect against concurrent access of EP controller */ @@ -137,9 +151,6 @@ struct pci_epc_features { #define devm_pci_epc_create(dev, ops) \ __devm_pci_epc_create((dev), (ops), THIS_MODULE) -#define pci_epc_mem_init(epc, phys_addr, size) \ - __pci_epc_mem_init((epc), (phys_addr), (size), PAGE_SIZE) - static inline void epc_set_drvdata(struct pci_epc *epc, void *data) { dev_set_drvdata(&epc->dev, data); @@ -195,8 +206,11 @@ unsigned int pci_epc_get_first_free_bar(const struct pci_epc_features struct pci_epc *pci_epc_get(const char *epc_name); void pci_epc_put(struct pci_epc *epc); -int __pci_epc_mem_init(struct pci_epc *epc, phys_addr_t phys_addr, size_t size, - size_t page_size); +int pci_epc_mem_init(struct pci_epc *epc, phys_addr_t base, + size_t size, size_t page_size); +int pci_epc_multi_mem_init(struct pci_epc *epc, + struct pci_epc_mem_window *window, + unsigned int num_windows); void pci_epc_mem_exit(struct pci_epc *epc); void __iomem *pci_epc_mem_alloc_addr(struct pci_epc *epc, phys_addr_t *phys_addr, size_t size); diff --git a/include/linux/pci.h b/include/linux/pci.h index 83ce1cdf5676..f020eae17126 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -100,9 +100,21 @@ enum { PCI_IOV_RESOURCE_END = PCI_IOV_RESOURCES + PCI_SRIOV_NUM_BARS - 1, #endif - /* Resources assigned to buses behind the bridge */ +/* PCI-to-PCI (P2P) bridge windows */ +#define PCI_BRIDGE_IO_WINDOW (PCI_BRIDGE_RESOURCES + 0) +#define PCI_BRIDGE_MEM_WINDOW (PCI_BRIDGE_RESOURCES + 1) +#define PCI_BRIDGE_PREF_MEM_WINDOW (PCI_BRIDGE_RESOURCES + 2) + +/* CardBus bridge windows */ +#define PCI_CB_BRIDGE_IO_0_WINDOW (PCI_BRIDGE_RESOURCES + 0) +#define PCI_CB_BRIDGE_IO_1_WINDOW (PCI_BRIDGE_RESOURCES + 1) +#define PCI_CB_BRIDGE_MEM_0_WINDOW (PCI_BRIDGE_RESOURCES + 2) +#define PCI_CB_BRIDGE_MEM_1_WINDOW (PCI_BRIDGE_RESOURCES + 3) + +/* Total number of bridge resources for P2P and CardBus */ #define PCI_BRIDGE_RESOURCE_NUM 4 + /* Resources assigned to buses behind the bridge */ PCI_BRIDGE_RESOURCES, PCI_BRIDGE_RESOURCE_END = PCI_BRIDGE_RESOURCES + PCI_BRIDGE_RESOURCE_NUM - 1, @@ -279,7 +291,7 @@ struct pci_cap_saved_data { u16 cap_nr; bool cap_extended; unsigned int size; - u32 data[0]; + u32 data[]; }; struct pci_cap_saved_state { @@ -420,8 +432,6 @@ struct pci_dev { * mappings to make sure they cannot access arbitrary memory. */ unsigned int untrusted:1; - unsigned int __aer_firmware_first_valid:1; - unsigned int __aer_firmware_first:1; unsigned int broken_intx_masking:1; /* INTx masking can't be used */ unsigned int io_window_1k:1; /* Intel bridge 1K I/O windows */ unsigned int irq_managed:1; @@ -532,7 +542,7 @@ struct pci_host_bridge { resource_size_t start, resource_size_t size, resource_size_t align); - unsigned long private[0] ____cacheline_aligned; + unsigned long private[] ____cacheline_aligned; }; #define to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev) @@ -1025,7 +1035,6 @@ void pci_bus_add_device(struct pci_dev *dev); void pci_read_bridge_bases(struct pci_bus *child); struct resource *pci_find_parent_resource(const struct pci_dev *dev, struct resource *res); -struct pci_dev *pci_find_pcie_root_port(struct pci_dev *dev); u8 pci_swizzle_interrupt_pin(const struct pci_dev *dev, u8 pin); int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge); u8 pci_common_swizzle(struct pci_dev *dev, u8 *pinp); @@ -2143,17 +2152,23 @@ static inline int pci_pcie_type(const struct pci_dev *dev) return (pcie_caps_reg(dev) & PCI_EXP_FLAGS_TYPE) >> 4; } +/** + * pcie_find_root_port - Get the PCIe root port device + * @dev: PCI device + * + * Traverse up the parent chain and return the PCIe Root Port PCI Device + * for a given PCI/PCIe Device. + */ 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; + struct pci_dev *bridge = pci_upstream_bridge(dev); + + while (bridge) { + if (pci_pcie_type(bridge) == PCI_EXP_TYPE_ROOT_PORT) + return bridge; + bridge = pci_upstream_bridge(bridge); } + return NULL; } diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 1dfc4e1dcb94..9a57e6717e5c 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1832,6 +1832,12 @@ #define PCI_VENDOR_ID_NVIDIA_SGS 0x12d2 #define PCI_DEVICE_ID_NVIDIA_SGS_RIVA128 0x0018 +#define PCI_VENDOR_ID_PERICOM 0x12D8 +#define PCI_DEVICE_ID_PERICOM_PI7C9X7951 0x7951 +#define PCI_DEVICE_ID_PERICOM_PI7C9X7952 0x7952 +#define PCI_DEVICE_ID_PERICOM_PI7C9X7954 0x7954 +#define PCI_DEVICE_ID_PERICOM_PI7C9X7958 0x7958 + #define PCI_SUBVENDOR_ID_CHASE_PCIFAST 0x12E0 #define PCI_SUBDEVICE_ID_CHASE_PCIFAST4 0x0031 #define PCI_SUBDEVICE_ID_CHASE_PCIFAST8 0x0021 |