1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Pvpanic PCI Device Support
4 *
5 * Copyright (C) 2021 Oracle.
6 */
7
8 #include <linux/kernel.h>
9 #include <linux/module.h>
10 #include <linux/pci.h>
11 #include <linux/types.h>
12 #include <linux/slab.h>
13
14 #include <uapi/misc/pvpanic.h>
15
16 #include "pvpanic.h"
17
18 #define PCI_VENDOR_ID_REDHAT 0x1b36
19 #define PCI_DEVICE_ID_REDHAT_PVPANIC 0x0011
20
21 MODULE_AUTHOR("Mihai Carabas <mihai.carabas@oracle.com>");
22 MODULE_DESCRIPTION("pvpanic device driver");
23 MODULE_LICENSE("GPL");
24
pvpanic_pci_probe(struct pci_dev * pdev,const struct pci_device_id * ent)25 static int pvpanic_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
26 {
27 void __iomem *base;
28 int ret;
29
30 ret = pcim_enable_device(pdev);
31 if (ret < 0)
32 return ret;
33
34 base = pcim_iomap(pdev, 0, 0);
35 if (!base)
36 return -ENOMEM;
37
38 return devm_pvpanic_probe(&pdev->dev, base);
39 }
40
41 static const struct pci_device_id pvpanic_pci_id_tbl[] = {
42 { PCI_DEVICE(PCI_VENDOR_ID_REDHAT, PCI_DEVICE_ID_REDHAT_PVPANIC)},
43 {}
44 };
45 MODULE_DEVICE_TABLE(pci, pvpanic_pci_id_tbl);
46
47 static struct pci_driver pvpanic_pci_driver = {
48 .name = "pvpanic-pci",
49 .id_table = pvpanic_pci_id_tbl,
50 .probe = pvpanic_pci_probe,
51 .dev_groups = pvpanic_dev_groups,
52 };
53 module_pci_driver(pvpanic_pci_driver);
54