tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Intel(R) Trace Hub pci driver
3 *
4 * Copyright (C) 2014-2015 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 */
15
16#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
17
18#include <linux/types.h>
19#include <linux/module.h>
20#include <linux/device.h>
21#include <linux/sysfs.h>
22#include <linux/pci.h>
23
24#include "intel_th.h"
25
26#define DRIVER_NAME "intel_th_pci"
27
28#define BAR_MASK (BIT(TH_MMIO_CONFIG) | BIT(TH_MMIO_SW))
29
30static int intel_th_pci_probe(struct pci_dev *pdev,
31 const struct pci_device_id *id)
32{
33 struct intel_th *th;
34 int err;
35
36 err = pcim_enable_device(pdev);
37 if (err)
38 return err;
39
40 err = pcim_iomap_regions_request_all(pdev, BAR_MASK, DRIVER_NAME);
41 if (err)
42 return err;
43
44 th = intel_th_alloc(&pdev->dev, pdev->resource,
45 DEVICE_COUNT_RESOURCE, pdev->irq);
46 if (IS_ERR(th))
47 return PTR_ERR(th);
48
49 pci_set_drvdata(pdev, th);
50
51 return 0;
52}
53
54static void intel_th_pci_remove(struct pci_dev *pdev)
55{
56 struct intel_th *th = pci_get_drvdata(pdev);
57
58 intel_th_free(th);
59}
60
61static const struct pci_device_id intel_th_pci_id_table[] = {
62 {
63 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9d26),
64 .driver_data = (kernel_ulong_t)0,
65 },
66 {
67 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa126),
68 .driver_data = (kernel_ulong_t)0,
69 },
70 { 0 },
71};
72
73MODULE_DEVICE_TABLE(pci, intel_th_pci_id_table);
74
75static struct pci_driver intel_th_pci_driver = {
76 .name = DRIVER_NAME,
77 .id_table = intel_th_pci_id_table,
78 .probe = intel_th_pci_probe,
79 .remove = intel_th_pci_remove,
80};
81
82module_pci_driver(intel_th_pci_driver);
83
84MODULE_LICENSE("GPL v2");
85MODULE_DESCRIPTION("Intel(R) Trace Hub PCI controller driver");
86MODULE_AUTHOR("Alexander Shishkin <alexander.shishkin@intel.com>");