2 * Intel(R) Trace Hub pci driver
4 * Copyright (C) 2014-2015 Intel Corporation.
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.
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
16 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
26 #define DRIVER_NAME "intel_th_pci"
28 #define BAR_MASK (BIT(TH_MMIO_CONFIG) | BIT(TH_MMIO_SW))
30 #define PCI_REG_NPKDSC 0x80
31 #define NPKDSC_TSACT BIT(5)
33 static int intel_th_pci_activate(struct intel_th *th)
35 struct pci_dev *pdev = to_pci_dev(th->dev);
39 if (!INTEL_TH_CAP(th, tscu_enable))
42 err = pci_read_config_dword(pdev, PCI_REG_NPKDSC, &npkdsc);
44 npkdsc |= NPKDSC_TSACT;
45 err = pci_write_config_dword(pdev, PCI_REG_NPKDSC, npkdsc);
49 dev_err(&pdev->dev, "failed to read NPKDSC register\n");
54 static void intel_th_pci_deactivate(struct intel_th *th)
56 struct pci_dev *pdev = to_pci_dev(th->dev);
60 if (!INTEL_TH_CAP(th, tscu_enable))
63 err = pci_read_config_dword(pdev, PCI_REG_NPKDSC, &npkdsc);
65 npkdsc |= NPKDSC_TSACT;
66 err = pci_write_config_dword(pdev, PCI_REG_NPKDSC, npkdsc);
70 dev_err(&pdev->dev, "failed to read NPKDSC register\n");
73 static int intel_th_pci_probe(struct pci_dev *pdev,
74 const struct pci_device_id *id)
76 struct intel_th_drvdata *drvdata = (void *)id->driver_data;
80 err = pcim_enable_device(pdev);
84 err = pcim_iomap_regions_request_all(pdev, BAR_MASK, DRIVER_NAME);
88 th = intel_th_alloc(&pdev->dev, drvdata, pdev->resource,
89 DEVICE_COUNT_RESOURCE, pdev->irq);
93 th->activate = intel_th_pci_activate;
94 th->deactivate = intel_th_pci_deactivate;
101 static void intel_th_pci_remove(struct pci_dev *pdev)
103 struct intel_th *th = pci_get_drvdata(pdev);
108 static const struct intel_th_drvdata intel_th_2x = {
112 static const struct pci_device_id intel_th_pci_id_table[] = {
114 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9d26),
115 .driver_data = (kernel_ulong_t)0,
118 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa126),
119 .driver_data = (kernel_ulong_t)0,
123 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x5a8e),
124 .driver_data = (kernel_ulong_t)0,
128 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0a80),
129 .driver_data = (kernel_ulong_t)0,
133 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1a8e),
134 .driver_data = (kernel_ulong_t)0,
137 /* Kaby Lake PCH-H */
138 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa2a6),
139 .driver_data = (kernel_ulong_t)0,
143 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x19e1),
144 .driver_data = (kernel_ulong_t)0,
148 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa1a6),
149 .driver_data = (kernel_ulong_t)0,
153 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa226),
154 .driver_data = (kernel_ulong_t)0,
158 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x318e),
159 .driver_data = (kernel_ulong_t)&intel_th_2x,
163 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa326),
164 .driver_data = (kernel_ulong_t)&intel_th_2x,
168 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9da6),
169 .driver_data = (kernel_ulong_t)&intel_th_2x,
173 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x18e1),
174 .driver_data = (kernel_ulong_t)&intel_th_2x,
178 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x34a6),
179 .driver_data = (kernel_ulong_t)&intel_th_2x,
183 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x02a6),
184 .driver_data = (kernel_ulong_t)&intel_th_2x,
188 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x06a6),
189 .driver_data = (kernel_ulong_t)&intel_th_2x,
192 /* Comet Lake PCH-V */
193 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa3a6),
194 .driver_data = (kernel_ulong_t)&intel_th_2x,
198 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x45c5),
199 .driver_data = (kernel_ulong_t)&intel_th_2x,
203 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x8a29),
204 .driver_data = (kernel_ulong_t)&intel_th_2x,
208 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9a33),
209 .driver_data = (kernel_ulong_t)&intel_th_2x,
213 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa0a6),
214 .driver_data = (kernel_ulong_t)&intel_th_2x,
217 /* Tiger Lake PCH-H */
218 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x43a6),
219 .driver_data = (kernel_ulong_t)&intel_th_2x,
222 /* Jasper Lake PCH */
223 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4da6),
224 .driver_data = (kernel_ulong_t)&intel_th_2x,
227 /* Jasper Lake CPU */
228 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4e29),
229 .driver_data = (kernel_ulong_t)&intel_th_2x,
232 /* Elkhart Lake CPU */
233 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4529),
234 .driver_data = (kernel_ulong_t)&intel_th_2x,
238 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4b26),
239 .driver_data = (kernel_ulong_t)&intel_th_2x,
243 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x51a6),
244 .driver_data = (kernel_ulong_t)&intel_th_2x,
248 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1bcc),
249 .driver_data = (kernel_ulong_t)&intel_th_2x,
253 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x54a6),
254 .driver_data = (kernel_ulong_t)&intel_th_2x,
257 /* Rocket Lake CPU */
258 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4c19),
259 .driver_data = (kernel_ulong_t)&intel_th_2x,
264 MODULE_DEVICE_TABLE(pci, intel_th_pci_id_table);
266 static struct pci_driver intel_th_pci_driver = {
268 .id_table = intel_th_pci_id_table,
269 .probe = intel_th_pci_probe,
270 .remove = intel_th_pci_remove,
273 module_pci_driver(intel_th_pci_driver);
275 MODULE_LICENSE("GPL v2");
276 MODULE_DESCRIPTION("Intel(R) Trace Hub PCI controller driver");
277 MODULE_AUTHOR("Alexander Shishkin <alexander.shishkin@intel.com>");