1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright 2016 Broadcom
5 #ifndef DRIVERS_PCI_ECAM_H
6 #define DRIVERS_PCI_ECAM_H
9 #include <linux/kernel.h>
10 #include <linux/platform_device.h>
13 * struct to hold pci ops and bus shift of the config window
14 * for a PCI controller.
16 struct pci_config_window
;
18 unsigned int bus_shift
;
19 struct pci_ops pci_ops
;
20 int (*init
)(struct pci_config_window
*);
24 * struct to hold the mappings of a config space window. This
25 * is expected to be used as sysdata for PCI controllers that
28 struct pci_config_window
{
32 struct pci_ecam_ops
*ops
;
34 void __iomem
*win
; /* 64-bit single mapping */
35 void __iomem
**winp
; /* 32-bit per-bus mapping */
37 struct device
*parent
;/* ECAM res was from this dev */
40 /* create and free pci_config_window */
41 struct pci_config_window
*pci_ecam_create(struct device
*dev
,
42 struct resource
*cfgres
, struct resource
*busr
,
43 struct pci_ecam_ops
*ops
);
44 void pci_ecam_free(struct pci_config_window
*cfg
);
46 /* map_bus when ->sysdata is an instance of pci_config_window */
47 void __iomem
*pci_ecam_map_bus(struct pci_bus
*bus
, unsigned int devfn
,
49 /* default ECAM ops */
50 extern struct pci_ecam_ops pci_generic_ecam_ops
;
52 #if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS)
53 extern struct pci_ecam_ops pci_32b_ops
; /* 32-bit accesses only */
54 extern struct pci_ecam_ops hisi_pcie_ops
; /* HiSilicon */
55 extern struct pci_ecam_ops thunder_pem_ecam_ops
; /* Cavium ThunderX 1.x & 2.x */
56 extern struct pci_ecam_ops pci_thunder_ecam_ops
; /* Cavium ThunderX 1.x */
57 extern struct pci_ecam_ops xgene_v1_pcie_ecam_ops
; /* APM X-Gene PCIe v1 */
58 extern struct pci_ecam_ops xgene_v2_pcie_ecam_ops
; /* APM X-Gene PCIe v2.x */
61 #ifdef CONFIG_PCI_HOST_COMMON
62 /* for DT-based PCI controllers that support ECAM */
63 int pci_host_common_probe(struct platform_device
*pdev
,
64 struct pci_ecam_ops
*ops
);
65 int pci_host_common_remove(struct platform_device
*pdev
);