1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Pvpanic PCI Device Support
4 *
5 * Copyright (C) 2021 Oracle.
6 */
7
8#include <linux/errno.h>
9#include <linux/module.h>
10#include <linux/pci.h>
11#include <linux/types.h>
12
13#include "pvpanic.h"
14
15#define PCI_DEVICE_ID_REDHAT_PVPANIC 0x0011
16
17MODULE_AUTHOR("Mihai Carabas <mihai.carabas@oracle.com>");
18MODULE_DESCRIPTION("pvpanic device driver");
19MODULE_LICENSE("GPL");
20
21static int pvpanic_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
22{
23 void __iomem *base;
24 int ret;
25
26 ret = pcim_enable_device(pdev);
27 if (ret < 0)
28 return ret;
29
30 base = pcim_iomap(pdev, bar: 0, maxlen: 0);
31 if (!base)
32 return -ENOMEM;
33
34 return devm_pvpanic_probe(dev: &pdev->dev, base);
35}
36
37static const struct pci_device_id pvpanic_pci_id_tbl[] = {
38 { PCI_DEVICE(PCI_VENDOR_ID_REDHAT, PCI_DEVICE_ID_REDHAT_PVPANIC)},
39 {}
40};
41MODULE_DEVICE_TABLE(pci, pvpanic_pci_id_tbl);
42
43static struct pci_driver pvpanic_pci_driver = {
44 .name = "pvpanic-pci",
45 .id_table = pvpanic_pci_id_tbl,
46 .probe = pvpanic_pci_probe,
47 .driver = {
48 .dev_groups = pvpanic_dev_groups,
49 },
50};
51module_pci_driver(pvpanic_pci_driver);
52

source code of linux/drivers/misc/pvpanic/pvpanic-pci.c