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Release 4.16 include/linux/pci-ecam.h

Directory: include/linux
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright 2016 Broadcom
 */
#ifndef DRIVERS_PCI_ECAM_H

#define DRIVERS_PCI_ECAM_H

#include <linux/pci.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(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 */
#endif

#ifdef 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);
#endif
#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C16875.34%327.27%
Christopher Covington198.52%19.09%
Duc Dang125.38%19.09%
Tomasz Nowicki125.38%218.18%
Dongdong Liu62.69%19.09%
Marc Gonzalez41.79%218.18%
Björn Helgaas20.90%19.09%
Total223100.00%11100.00%
Directory: include/linux
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