/* * Copyright 2016 Broadcom * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2, as * published by the Free Software Foundation (the "GPL"). * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License version 2 (GPLv2) for more details. * * You should have received a copy of the GNU General Public License * version 2 (GPLv2) along with this source code. */ #ifndef DRIVERS_PCI_ECAM_H #define DRIVERS_PCI_ECAM_H #include <linux/kernel.h> #include <linux/platform_device.h> /* * struct to hold pci ops and bus shift of the config window * for a PCI controller. */ struct pci_config_window; struct pci_ecam_ops { unsigned int bus_shift; struct pci_ops pci_ops; int (*init)(struct pci_config_window *); }; /* * struct to hold the mappings of a config space window. This * is expected to be used as sysdata for PCI controllers that * use ECAM. */ struct pci_config_window { struct resource res; struct resource busr; void *priv; struct pci_ecam_ops *ops; union { void __iomem *win; /* 64-bit single mapping */ void __iomem **winp; /* 32-bit per-bus mapping */ }; struct device *parent;/* ECAM res was from this dev */ }; /* 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); 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; #if defined([31mCONFIG_ACPI[0m) && defined([31mCONFIG_PCI_QUIRKS[0m) 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 */ #endif #ifdef [31mCONFIG_PCI_HOST_GENERIC[0m /* for DT-based PCI controllers that support ECAM */ int pci_host_common_probe(struct platform_device *pdev, struct pci_ecam_ops *ops); #endif #endif |