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	return 0;
 50}
 51
 52static void intel_th_pci_remove(struct pci_dev *pdev)
 53{
 54	struct intel_th *th = pci_get_drvdata(pdev);
 55
 56	intel_th_free(th);
 57}
 58
 59static const struct pci_device_id intel_th_pci_id_table[] = {
 60	{
 61		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9d26),
 62		.driver_data = (kernel_ulong_t)0,
 63	},
 64	{
 65		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa126),
 66		.driver_data = (kernel_ulong_t)0,
 67	},
 68	{
 69		/* Apollo Lake */
 70		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x5a8e),
 71		.driver_data = (kernel_ulong_t)0,
 72	},
 73	{
 74		/* Broxton */
 75		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0a80),
 76		.driver_data = (kernel_ulong_t)0,
 77	},
 78	{
 79		/* Broxton B-step */
 80		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1a8e),
 81		.driver_data = (kernel_ulong_t)0,
 82	},
 83	{
 84		/* Kaby Lake PCH-H */
 85		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa2a6),
 86		.driver_data = (kernel_ulong_t)0,
 87	},
 88	{ 0 },
 89};
 90
 91MODULE_DEVICE_TABLE(pci, intel_th_pci_id_table);
 92
 93static struct pci_driver intel_th_pci_driver = {
 94	.name		= DRIVER_NAME,
 95	.id_table	= intel_th_pci_id_table,
 96	.probe		= intel_th_pci_probe,
 97	.remove		= intel_th_pci_remove,
 98};
 99
100module_pci_driver(intel_th_pci_driver);
101
102MODULE_LICENSE("GPL v2");
103MODULE_DESCRIPTION("Intel(R) Trace Hub PCI controller driver");
104MODULE_AUTHOR("Alexander Shishkin <alexander.shishkin@intel.com>");