1 // SPDX-License-Identifier: GPL-2.0
3 * Intel(R) Trace Hub pci driver
5 * Copyright (C) 2014-2015 Intel Corporation.
8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
10 #include <linux/types.h>
11 #include <linux/module.h>
12 #include <linux/device.h>
13 #include <linux/sysfs.h>
14 #include <linux/pci.h>
18 #define DRIVER_NAME "intel_th_pci"
21 TH_PCI_CONFIG_BAR = 0,
22 TH_PCI_STH_SW_BAR = 2,
27 #define PCI_REG_NPKDSC 0x80
28 #define NPKDSC_TSACT BIT(5)
30 static int intel_th_pci_activate(struct intel_th *th)
32 struct pci_dev *pdev = to_pci_dev(th->dev);
36 if (!INTEL_TH_CAP(th, tscu_enable))
39 err = pci_read_config_dword(pdev, PCI_REG_NPKDSC, &npkdsc);
41 npkdsc |= NPKDSC_TSACT;
42 err = pci_write_config_dword(pdev, PCI_REG_NPKDSC, npkdsc);
46 dev_err(&pdev->dev, "failed to read NPKDSC register\n");
51 static void intel_th_pci_deactivate(struct intel_th *th)
53 struct pci_dev *pdev = to_pci_dev(th->dev);
57 if (!INTEL_TH_CAP(th, tscu_enable))
60 err = pci_read_config_dword(pdev, PCI_REG_NPKDSC, &npkdsc);
62 npkdsc |= NPKDSC_TSACT;
63 err = pci_write_config_dword(pdev, PCI_REG_NPKDSC, npkdsc);
67 dev_err(&pdev->dev, "failed to read NPKDSC register\n");
70 static int intel_th_pci_probe(struct pci_dev *pdev,
71 const struct pci_device_id *id)
73 const struct intel_th_drvdata *drvdata = (void *)id->driver_data;
74 struct resource resource[TH_MMIO_END + TH_NVEC_MAX] = {
75 [TH_MMIO_CONFIG] = pdev->resource[TH_PCI_CONFIG_BAR],
76 [TH_MMIO_SW] = pdev->resource[TH_PCI_STH_SW_BAR],
78 int err, r = TH_MMIO_SW + 1, i;
81 err = pcim_enable_device(pdev);
85 err = pcim_request_all_regions(pdev, DRIVER_NAME);
89 if (!pcim_iomap(pdev, TH_PCI_CONFIG_BAR, 0))
92 if (!pcim_iomap(pdev, TH_PCI_STH_SW_BAR, 0))
95 if (pdev->resource[TH_PCI_RTIT_BAR].start) {
96 resource[TH_MMIO_RTIT] = pdev->resource[TH_PCI_RTIT_BAR];
100 err = pci_alloc_irq_vectors(pdev, 1, 8, PCI_IRQ_ALL_TYPES);
102 for (i = 0; i < err; i++, r++) {
103 resource[r].flags = IORESOURCE_IRQ;
104 resource[r].start = pci_irq_vector(pdev, i);
107 th = intel_th_alloc(&pdev->dev, drvdata, resource, r);
113 th->activate = intel_th_pci_activate;
114 th->deactivate = intel_th_pci_deactivate;
116 pci_set_master(pdev);
121 pci_free_irq_vectors(pdev);
125 static void intel_th_pci_remove(struct pci_dev *pdev)
127 struct intel_th *th = pci_get_drvdata(pdev);
131 pci_free_irq_vectors(pdev);
134 static const struct intel_th_drvdata intel_th_1x_multi_is_broken = {
135 .multi_is_broken = 1,
138 static const struct intel_th_drvdata intel_th_2x = {
143 static const struct pci_device_id intel_th_pci_id_table[] = {
145 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9d26),
146 .driver_data = (kernel_ulong_t)0,
149 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa126),
150 .driver_data = (kernel_ulong_t)0,
154 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x5a8e),
155 .driver_data = (kernel_ulong_t)0,
159 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0a80),
160 .driver_data = (kernel_ulong_t)0,
164 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1a8e),
165 .driver_data = (kernel_ulong_t)0,
168 /* Kaby Lake PCH-H */
169 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa2a6),
170 .driver_data = (kernel_ulong_t)&intel_th_1x_multi_is_broken,
174 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x19e1),
175 .driver_data = (kernel_ulong_t)0,
179 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa1a6),
180 .driver_data = (kernel_ulong_t)0,
184 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa226),
185 .driver_data = (kernel_ulong_t)0,
189 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x318e),
190 .driver_data = (kernel_ulong_t)&intel_th_2x,
194 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa326),
195 .driver_data = (kernel_ulong_t)&intel_th_2x,
199 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9da6),
200 .driver_data = (kernel_ulong_t)&intel_th_2x,
204 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x18e1),
205 .driver_data = (kernel_ulong_t)&intel_th_2x,
209 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x34a6),
210 .driver_data = (kernel_ulong_t)&intel_th_2x,
214 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x02a6),
215 .driver_data = (kernel_ulong_t)&intel_th_2x,
219 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x06a6),
220 .driver_data = (kernel_ulong_t)&intel_th_2x,
223 /* Comet Lake PCH-V */
224 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa3a6),
225 .driver_data = (kernel_ulong_t)&intel_th_1x_multi_is_broken,
229 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x45c5),
230 .driver_data = (kernel_ulong_t)&intel_th_2x,
234 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x8a29),
235 .driver_data = (kernel_ulong_t)&intel_th_2x,
239 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9a33),
240 .driver_data = (kernel_ulong_t)&intel_th_2x,
244 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa0a6),
245 .driver_data = (kernel_ulong_t)&intel_th_2x,
248 /* Tiger Lake PCH-H */
249 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x43a6),
250 .driver_data = (kernel_ulong_t)&intel_th_2x,
253 /* Jasper Lake PCH */
254 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4da6),
255 .driver_data = (kernel_ulong_t)&intel_th_2x,
258 /* Jasper Lake CPU */
259 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4e29),
260 .driver_data = (kernel_ulong_t)&intel_th_2x,
263 /* Elkhart Lake CPU */
264 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4529),
265 .driver_data = (kernel_ulong_t)&intel_th_2x,
269 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4b26),
270 .driver_data = (kernel_ulong_t)&intel_th_2x,
274 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1bcc),
275 .driver_data = (kernel_ulong_t)&intel_th_2x,
279 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7aa6),
280 .driver_data = (kernel_ulong_t)&intel_th_2x,
284 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x51a6),
285 .driver_data = (kernel_ulong_t)&intel_th_2x,
289 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x54a6),
290 .driver_data = (kernel_ulong_t)&intel_th_2x,
294 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7e24),
295 .driver_data = (kernel_ulong_t)&intel_th_2x,
299 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7f26),
300 .driver_data = (kernel_ulong_t)&intel_th_2x,
303 /* Meteor Lake-S CPU */
304 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xae24),
305 .driver_data = (kernel_ulong_t)&intel_th_2x,
309 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7a26),
310 .driver_data = (kernel_ulong_t)&intel_th_2x,
313 /* Raptor Lake-S CPU */
314 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa76f),
315 .driver_data = (kernel_ulong_t)&intel_th_2x,
319 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0963),
320 .driver_data = (kernel_ulong_t)&intel_th_2x,
323 /* Granite Rapids SOC */
324 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3256),
325 .driver_data = (kernel_ulong_t)&intel_th_2x,
328 /* Sapphire Rapids SOC */
329 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3456),
330 .driver_data = (kernel_ulong_t)&intel_th_2x,
334 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa824),
335 .driver_data = (kernel_ulong_t)&intel_th_2x,
339 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x466f),
340 .driver_data = (kernel_ulong_t)&intel_th_2x,
343 /* Rocket Lake CPU */
344 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4c19),
345 .driver_data = (kernel_ulong_t)&intel_th_2x,
350 MODULE_DEVICE_TABLE(pci, intel_th_pci_id_table);
352 static struct pci_driver intel_th_pci_driver = {
354 .id_table = intel_th_pci_id_table,
355 .probe = intel_th_pci_probe,
356 .remove = intel_th_pci_remove,
359 module_pci_driver(intel_th_pci_driver);
361 MODULE_LICENSE("GPL v2");
362 MODULE_DESCRIPTION("Intel(R) Trace Hub PCI controller driver");