diff options
Diffstat (limited to 'arch/powerpc/include/asm/pci-bridge.h')
| -rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 168 |
1 files changed, 105 insertions, 63 deletions
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 2c1d8cb9b265..1dae53130782 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -1,20 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _ASM_POWERPC_PCI_BRIDGE_H #define _ASM_POWERPC_PCI_BRIDGE_H #ifdef __KERNEL__ /* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #include <linux/pci.h> #include <linux/list.h> #include <linux/ioport.h> -#include <asm-generic/pci-bridge.h> +#include <linux/numa.h> +#include <linux/iommu.h> struct device_node; /* + * PCI controller operations + */ +struct pci_controller_ops { + void (*dma_dev_setup)(struct pci_dev *pdev); + void (*dma_bus_setup)(struct pci_bus *bus); + bool (*iommu_bypass_supported)(struct pci_dev *pdev, + u64 mask); + + int (*probe_mode)(struct pci_bus *bus); + + /* Called when pci_enable_device() is called. Returns true to + * allow assignment/enabling of the device. */ + bool (*enable_device_hook)(struct pci_dev *pdev); + + void (*disable_device)(struct pci_dev *pdev); + + void (*release_device)(struct pci_dev *pdev); + + /* Called during PCI resource reassignment */ + resource_size_t (*window_alignment)(struct pci_bus *bus, + unsigned long type); + void (*setup_bridge)(struct pci_bus *bus, + unsigned long type); + void (*reset_secondary_bus)(struct pci_dev *pdev); + +#ifdef CONFIG_PCI_MSI + int (*setup_msi_irqs)(struct pci_dev *pdev, + int nvec, int type); + void (*teardown_msi_irqs)(struct pci_dev *pdev); +#endif + + void (*shutdown)(struct pci_controller *hose); + + struct iommu_group *(*device_group)(struct pci_controller *hose, + struct pci_dev *pdev); +}; + +/* * Structure of a PCI controller (host bridge) */ struct pci_controller { @@ -34,7 +70,7 @@ struct pci_controller { void __iomem *io_base_virt; #ifdef CONFIG_PPC64 - void *io_base_alloc; + void __iomem *io_base_alloc; #endif resource_size_t io_base_phys; resource_size_t pci_io_size; @@ -46,6 +82,7 @@ struct pci_controller { resource_size_t isa_mem_phys; resource_size_t isa_mem_size; + struct pci_controller_ops controller_ops; struct pci_ops *ops; unsigned int __iomem *cfg_addr; void __iomem *cfg_data; @@ -89,9 +126,16 @@ struct pci_controller { #ifdef CONFIG_PPC64 unsigned long buid; + struct pci_dn *pci_data; #endif /* CONFIG_PPC64 */ void *private_data; + + /* IRQ domain hierarchy */ + struct irq_domain *dev_domain; + + /* iommu_ops support */ + struct iommu_device iommu; }; /* These are used for config access before all the PCI probing @@ -119,6 +163,10 @@ extern void setup_indirect_pci(struct pci_controller* hose, extern int indirect_read_config(struct pci_bus *bus, unsigned int devfn, int offset, int len, u32 *val); +extern int __indirect_read_config(struct pci_controller *hose, + unsigned char bus_number, unsigned int devfn, + int offset, int len, u32 *val); + extern int indirect_write_config(struct pci_bus *bus, unsigned int devfn, int offset, int len, u32 val); @@ -127,19 +175,17 @@ static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus) return bus->sysdata; } -#ifndef CONFIG_PPC64 - +#ifdef CONFIG_PPC_PMAC extern int pci_device_from_OF_node(struct device_node *node, u8 *bus, u8 *devfn); -extern void pci_create_OF_bus_map(void); +#endif +#ifndef CONFIG_PPC64 -static inline int isa_vaddr_is_ioport(void __iomem *address) -{ - /* No specific ISA handling on ppc32 at this stage, it - * all goes through PCI - */ - return 0; -} +#ifdef CONFIG_PPC_PCI_OF_BUS_MAP +extern void pci_create_OF_bus_map(void); +#else +static inline void pci_create_OF_bus_map(void) {} +#endif #else /* CONFIG_PPC64 */ @@ -150,80 +196,73 @@ static inline int isa_vaddr_is_ioport(void __iomem *address) struct iommu_table; struct pci_dn { + int flags; +#define PCI_DN_FLAG_IOV_VF 0x01 +#define PCI_DN_FLAG_DEAD 0x02 /* Device has been hot-removed */ + int busno; /* pci bus number */ int devfn; /* pci device and function number */ + int vendor_id; /* Vendor ID */ + int device_id; /* Device ID */ + int class_code; /* Device class code */ + struct pci_dn *parent; struct pci_controller *phb; /* for pci devices */ - struct iommu_table *iommu_table; /* for phb's or bridges */ - struct device_node *node; /* back-pointer to the device_node */ + struct iommu_table_group *table_group; /* for phb's or bridges */ int pci_ext_config_space; /* for pci devices */ - - int force_32bit_msi:1; - - struct pci_dev *pcidev; /* back-pointer to the pci device */ #ifdef CONFIG_EEH struct eeh_dev *edev; /* eeh device */ #endif -#define IODA_INVALID_PE (-1) -#ifdef CONFIG_PPC_POWERNV - int pe_number; -#endif +#define IODA_INVALID_PE 0xFFFFFFFF + unsigned int pe_number; +#ifdef CONFIG_PCI_IOV + u16 vfs_expanded; /* number of VFs IOV BAR expanded */ + u16 num_vfs; /* number of VFs enabled*/ + unsigned int *pe_num_map; /* PE# for the first VF PE or array */ + bool m64_single_mode; /* Use M64 BAR in Single Mode */ +#define IODA_INVALID_M64 (-1) + int (*m64_map)[PCI_SRIOV_NUM_BARS]; /* Only used on powernv */ + int last_allow_rc; /* Only used on pseries */ +#endif /* CONFIG_PCI_IOV */ + int mps; /* Maximum Payload Size */ + struct list_head child_list; + struct list_head list; + struct resource holes[PCI_SRIOV_NUM_BARS]; }; /* Get the pointer to a device_node's pci_dn */ #define PCI_DN(dn) ((struct pci_dn *) (dn)->data) +extern struct pci_dn *pci_get_pdn_by_devfn(struct pci_bus *bus, + int devfn); extern struct pci_dn *pci_get_pdn(struct pci_dev *pdev); +extern struct pci_dn *pci_add_device_node_info(struct pci_controller *hose, + struct device_node *dn); +extern void pci_remove_device_node_info(struct device_node *dn); -extern void * update_dn_pci_info(struct device_node *dn, void *data); - -static inline int pci_device_from_OF_node(struct device_node *np, - u8 *bus, u8 *devfn) -{ - if (!PCI_DN(np)) - return -ENODEV; - *bus = PCI_DN(np)->busno; - *devfn = PCI_DN(np)->devfn; - return 0; -} +#ifdef CONFIG_PCI_IOV +struct pci_dn *add_sriov_vf_pdns(struct pci_dev *pdev); +void remove_sriov_vf_pdns(struct pci_dev *pdev); +#endif #if defined(CONFIG_EEH) -static inline struct eeh_dev *of_node_to_eeh_dev(struct device_node *dn) +static inline struct eeh_dev *pdn_to_eeh_dev(struct pci_dn *pdn) { - /* - * For those OF nodes whose parent isn't PCI bridge, they - * don't have PCI_DN actually. So we have to skip them for - * any EEH operations. - */ - if (!dn || !PCI_DN(dn)) - return NULL; - - return PCI_DN(dn)->edev; + return pdn ? pdn->edev : NULL; } #else -#define of_node_to_eeh_dev(x) (NULL) +#define pdn_to_eeh_dev(x) (NULL) #endif /** Find the bus corresponding to the indicated device node */ -extern struct pci_bus *pcibios_find_pci_bus(struct device_node *dn); +extern struct pci_bus *pci_find_bus_by_node(struct device_node *dn); /** Remove all of the PCI devices under this bus */ -extern void __pcibios_remove_pci_devices(struct pci_bus *bus, int purge_pe); -extern void pcibios_remove_pci_devices(struct pci_bus *bus); +extern void pci_hp_remove_devices(struct pci_bus *bus); /** Discover new pci devices under this bus, and add them */ -extern void pcibios_add_pci_devices(struct pci_bus *bus); - - -extern void isa_bridge_find_early(struct pci_controller *hose); - -static inline int isa_vaddr_is_ioport(void __iomem *address) -{ - /* Check if address hits the reserved legacy IO range */ - unsigned long ea = (unsigned long)address; - return ea >= ISA_IO_BASE && ea < ISA_IO_END; -} +extern void pci_hp_add_devices(struct pci_bus *bus); extern int pcibios_unmap_io_space(struct pci_bus *bus); extern int pcibios_map_io_space(struct pci_bus *bus); @@ -231,7 +270,7 @@ extern int pcibios_map_io_space(struct pci_bus *bus); #ifdef CONFIG_NUMA #define PHB_SET_NODE(PHB, NODE) ((PHB)->node = (NODE)) #else -#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = -1) +#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = NUMA_NO_NODE) #endif #endif /* CONFIG_PPC64 */ @@ -240,6 +279,8 @@ extern int pcibios_map_io_space(struct pci_bus *bus); extern struct pci_controller *pci_find_hose_for_OF_device( struct device_node* node); +extern struct pci_controller *pci_find_controller_for_domain(int domain_nr); + /* Fill up host controller resources from the OF node */ extern void pci_process_bridge_OF_ranges(struct pci_controller *hose, struct device_node *dev, int primary); @@ -247,6 +288,7 @@ extern void pci_process_bridge_OF_ranges(struct pci_controller *hose, /* Allocate & free a PCI host bridge structure */ extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev); extern void pcibios_free_controller(struct pci_controller *phb); +extern void pcibios_free_controller_deferred(struct pci_host_bridge *bridge); #ifdef CONFIG_PCI extern int pcibios_vaddr_is_ioport(void __iomem *address); |