1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2003-2022, Intel Corporation. All rights reserved.
4 * Intel Management Engine Interface (Intel MEI) Linux driver
5 */
6
7 #include <linux/module.h>
8 #include <linux/kernel.h>
9 #include <linux/device.h>
10 #include <linux/errno.h>
11 #include <linux/types.h>
12 #include <linux/pci.h>
13 #include <linux/dma-mapping.h>
14 #include <linux/sched.h>
15 #include <linux/interrupt.h>
16
17 #include <linux/pm_domain.h>
18 #include <linux/pm_runtime.h>
19
20 #include <linux/mei.h>
21
22 #include "mei_dev.h"
23 #include "client.h"
24 #include "hw-me-regs.h"
25 #include "hw-me.h"
26
27 /* mei_pci_tbl - PCI Device ID Table */
28 static const struct pci_device_id mei_me_pci_tbl[] = {
29 {MEI_PCI_DEVICE(MEI_DEV_ID_82946GZ, MEI_ME_ICH_CFG)},
30 {MEI_PCI_DEVICE(MEI_DEV_ID_82G35, MEI_ME_ICH_CFG)},
31 {MEI_PCI_DEVICE(MEI_DEV_ID_82Q965, MEI_ME_ICH_CFG)},
32 {MEI_PCI_DEVICE(MEI_DEV_ID_82G965, MEI_ME_ICH_CFG)},
33 {MEI_PCI_DEVICE(MEI_DEV_ID_82GM965, MEI_ME_ICH_CFG)},
34 {MEI_PCI_DEVICE(MEI_DEV_ID_82GME965, MEI_ME_ICH_CFG)},
35 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_82Q35, MEI_ME_ICH_CFG)},
36 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_82G33, MEI_ME_ICH_CFG)},
37 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_82Q33, MEI_ME_ICH_CFG)},
38 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_82X38, MEI_ME_ICH_CFG)},
39 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_3200, MEI_ME_ICH_CFG)},
40
41 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_6, MEI_ME_ICH_CFG)},
42 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_7, MEI_ME_ICH_CFG)},
43 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_8, MEI_ME_ICH_CFG)},
44 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_9, MEI_ME_ICH_CFG)},
45 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_10, MEI_ME_ICH_CFG)},
46 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9M_1, MEI_ME_ICH_CFG)},
47 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9M_2, MEI_ME_ICH_CFG)},
48 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9M_3, MEI_ME_ICH_CFG)},
49 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9M_4, MEI_ME_ICH_CFG)},
50
51 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH10_1, MEI_ME_ICH10_CFG)},
52 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH10_2, MEI_ME_ICH10_CFG)},
53 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH10_3, MEI_ME_ICH10_CFG)},
54 {MEI_PCI_DEVICE(MEI_DEV_ID_ICH10_4, MEI_ME_ICH10_CFG)},
55
56 {MEI_PCI_DEVICE(MEI_DEV_ID_IBXPK_1, MEI_ME_PCH6_CFG)},
57 {MEI_PCI_DEVICE(MEI_DEV_ID_IBXPK_2, MEI_ME_PCH6_CFG)},
58 {MEI_PCI_DEVICE(MEI_DEV_ID_CPT_1, MEI_ME_PCH_CPT_PBG_CFG)},
59 {MEI_PCI_DEVICE(MEI_DEV_ID_PBG_1, MEI_ME_PCH_CPT_PBG_CFG)},
60 {MEI_PCI_DEVICE(MEI_DEV_ID_PPT_1, MEI_ME_PCH7_CFG)},
61 {MEI_PCI_DEVICE(MEI_DEV_ID_PPT_2, MEI_ME_PCH7_CFG)},
62 {MEI_PCI_DEVICE(MEI_DEV_ID_PPT_3, MEI_ME_PCH7_CFG)},
63 {MEI_PCI_DEVICE(MEI_DEV_ID_LPT_H, MEI_ME_PCH8_SPS_4_CFG)},
64 {MEI_PCI_DEVICE(MEI_DEV_ID_LPT_W, MEI_ME_PCH8_SPS_4_CFG)},
65 {MEI_PCI_DEVICE(MEI_DEV_ID_LPT_LP, MEI_ME_PCH8_CFG)},
66 {MEI_PCI_DEVICE(MEI_DEV_ID_LPT_HR, MEI_ME_PCH8_SPS_4_CFG)},
67 {MEI_PCI_DEVICE(MEI_DEV_ID_WPT_LP, MEI_ME_PCH8_CFG)},
68 {MEI_PCI_DEVICE(MEI_DEV_ID_WPT_LP_2, MEI_ME_PCH8_CFG)},
69
70 {MEI_PCI_DEVICE(MEI_DEV_ID_SPT, MEI_ME_PCH8_CFG)},
71 {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, MEI_ME_PCH8_CFG)},
72 {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_3, MEI_ME_PCH8_ITOUCH_CFG)},
73 {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, MEI_ME_PCH8_SPS_4_CFG)},
74 {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, MEI_ME_PCH8_SPS_4_CFG)},
75 {MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH12_SPS_4_CFG)},
76
77 {MEI_PCI_DEVICE(MEI_DEV_ID_BXT_M, MEI_ME_PCH8_CFG)},
78 {MEI_PCI_DEVICE(MEI_DEV_ID_APL_I, MEI_ME_PCH8_CFG)},
79
80 {MEI_PCI_DEVICE(MEI_DEV_ID_DNV_IE, MEI_ME_PCH8_CFG)},
81
82 {MEI_PCI_DEVICE(MEI_DEV_ID_GLK, MEI_ME_PCH8_CFG)},
83
84 {MEI_PCI_DEVICE(MEI_DEV_ID_KBP, MEI_ME_PCH8_CFG)},
85 {MEI_PCI_DEVICE(MEI_DEV_ID_KBP_2, MEI_ME_PCH8_CFG)},
86 {MEI_PCI_DEVICE(MEI_DEV_ID_KBP_3, MEI_ME_PCH8_CFG)},
87
88 {MEI_PCI_DEVICE(MEI_DEV_ID_CNP_LP, MEI_ME_PCH12_CFG)},
89 {MEI_PCI_DEVICE(MEI_DEV_ID_CNP_LP_3, MEI_ME_PCH8_ITOUCH_CFG)},
90 {MEI_PCI_DEVICE(MEI_DEV_ID_CNP_H, MEI_ME_PCH12_SPS_CFG)},
91 {MEI_PCI_DEVICE(MEI_DEV_ID_CNP_H_3, MEI_ME_PCH12_SPS_ITOUCH_CFG)},
92
93 {MEI_PCI_DEVICE(MEI_DEV_ID_CMP_LP, MEI_ME_PCH12_CFG)},
94 {MEI_PCI_DEVICE(MEI_DEV_ID_CMP_LP_3, MEI_ME_PCH8_ITOUCH_CFG)},
95 {MEI_PCI_DEVICE(MEI_DEV_ID_CMP_V, MEI_ME_PCH12_CFG)},
96 {MEI_PCI_DEVICE(MEI_DEV_ID_CMP_H, MEI_ME_PCH12_CFG)},
97 {MEI_PCI_DEVICE(MEI_DEV_ID_CMP_H_3, MEI_ME_PCH8_ITOUCH_CFG)},
98
99 {MEI_PCI_DEVICE(MEI_DEV_ID_ICP_LP, MEI_ME_PCH12_CFG)},
100 {MEI_PCI_DEVICE(MEI_DEV_ID_ICP_N, MEI_ME_PCH12_CFG)},
101
102 {MEI_PCI_DEVICE(MEI_DEV_ID_TGP_LP, MEI_ME_PCH15_CFG)},
103 {MEI_PCI_DEVICE(MEI_DEV_ID_TGP_H, MEI_ME_PCH15_SPS_CFG)},
104
105 {MEI_PCI_DEVICE(MEI_DEV_ID_JSP_N, MEI_ME_PCH15_CFG)},
106
107 {MEI_PCI_DEVICE(MEI_DEV_ID_MCC, MEI_ME_PCH15_CFG)},
108 {MEI_PCI_DEVICE(MEI_DEV_ID_MCC_4, MEI_ME_PCH8_CFG)},
109
110 {MEI_PCI_DEVICE(MEI_DEV_ID_CDF, MEI_ME_PCH8_CFG)},
111
112 {MEI_PCI_DEVICE(MEI_DEV_ID_EBG, MEI_ME_PCH15_SPS_CFG)},
113
114 {MEI_PCI_DEVICE(MEI_DEV_ID_ADP_S, MEI_ME_PCH15_CFG)},
115 {MEI_PCI_DEVICE(MEI_DEV_ID_ADP_LP, MEI_ME_PCH15_CFG)},
116 {MEI_PCI_DEVICE(MEI_DEV_ID_ADP_P, MEI_ME_PCH15_CFG)},
117 {MEI_PCI_DEVICE(MEI_DEV_ID_ADP_N, MEI_ME_PCH15_CFG)},
118
119 {MEI_PCI_DEVICE(MEI_DEV_ID_RPL_S, MEI_ME_PCH15_SPS_CFG)},
120
121 {MEI_PCI_DEVICE(MEI_DEV_ID_MTL_M, MEI_ME_PCH15_CFG)},
122 {MEI_PCI_DEVICE(MEI_DEV_ID_ARL_S, MEI_ME_PCH15_CFG)},
123 {MEI_PCI_DEVICE(MEI_DEV_ID_ARL_H, MEI_ME_PCH15_CFG)},
124
125 {MEI_PCI_DEVICE(MEI_DEV_ID_LNL_M, MEI_ME_PCH15_CFG)},
126
127 {MEI_PCI_DEVICE(MEI_DEV_ID_PTL_H, MEI_ME_PCH15_CFG)},
128 {MEI_PCI_DEVICE(MEI_DEV_ID_PTL_P, MEI_ME_PCH15_CFG)},
129
130 /* required last entry */
131 {0, }
132 };
133
134 MODULE_DEVICE_TABLE(pci, mei_me_pci_tbl);
135
136 #ifdef CONFIG_PM
137 static inline void mei_me_set_pm_domain(struct mei_device *dev);
138 static inline void mei_me_unset_pm_domain(struct mei_device *dev);
139 #else
mei_me_set_pm_domain(struct mei_device * dev)140 static inline void mei_me_set_pm_domain(struct mei_device *dev) {}
mei_me_unset_pm_domain(struct mei_device * dev)141 static inline void mei_me_unset_pm_domain(struct mei_device *dev) {}
142 #endif /* CONFIG_PM */
143
mei_me_read_fws(const struct mei_device * dev,int where,u32 * val)144 static int mei_me_read_fws(const struct mei_device *dev, int where, u32 *val)
145 {
146 struct pci_dev *pdev = to_pci_dev(dev->dev);
147
148 return pci_read_config_dword(pdev, where, val);
149 }
150
151 /**
152 * mei_me_quirk_probe - probe for devices that doesn't valid ME interface
153 *
154 * @pdev: PCI device structure
155 * @cfg: per generation config
156 *
157 * Return: true if ME Interface is valid, false otherwise
158 */
mei_me_quirk_probe(struct pci_dev * pdev,const struct mei_cfg * cfg)159 static bool mei_me_quirk_probe(struct pci_dev *pdev,
160 const struct mei_cfg *cfg)
161 {
162 if (cfg->quirk_probe && cfg->quirk_probe(pdev)) {
163 dev_info(&pdev->dev, "Device doesn't have valid ME Interface\n");
164 return false;
165 }
166
167 return true;
168 }
169
170 /**
171 * mei_me_probe - Device Initialization Routine
172 *
173 * @pdev: PCI device structure
174 * @ent: entry in kcs_pci_tbl
175 *
176 * Return: 0 on success, <0 on failure.
177 */
mei_me_probe(struct pci_dev * pdev,const struct pci_device_id * ent)178 static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
179 {
180 const struct mei_cfg *cfg;
181 struct mei_device *dev;
182 struct mei_me_hw *hw;
183 unsigned int irqflags;
184 int err;
185
186 cfg = mei_me_get_cfg(ent->driver_data);
187 if (!cfg)
188 return -ENODEV;
189
190 if (!mei_me_quirk_probe(pdev, cfg))
191 return -ENODEV;
192
193 /* enable pci dev */
194 err = pcim_enable_device(pdev);
195 if (err) {
196 dev_err(&pdev->dev, "failed to enable pci device.\n");
197 goto end;
198 }
199 /* set PCI host mastering */
200 pci_set_master(pdev);
201 /* pci request regions and mapping IO device memory for mei driver */
202 err = pcim_iomap_regions(pdev, BIT(0), KBUILD_MODNAME);
203 if (err) {
204 dev_err(&pdev->dev, "failed to get pci regions.\n");
205 goto end;
206 }
207
208 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
209 if (err) {
210 dev_err(&pdev->dev, "No usable DMA configuration, aborting\n");
211 goto end;
212 }
213
214 /* allocates and initializes the mei dev structure */
215 dev = mei_me_dev_init(&pdev->dev, cfg, false);
216 if (!dev) {
217 err = -ENOMEM;
218 goto end;
219 }
220 hw = to_me_hw(dev);
221 hw->mem_addr = pcim_iomap_table(pdev)[0];
222 hw->read_fws = mei_me_read_fws;
223
224 pci_enable_msi(pdev);
225
226 hw->irq = pdev->irq;
227
228 /* request and enable interrupt */
229 irqflags = pci_dev_msi_enabled(pdev) ? IRQF_ONESHOT : IRQF_SHARED;
230
231 err = request_threaded_irq(pdev->irq,
232 mei_me_irq_quick_handler,
233 mei_me_irq_thread_handler,
234 irqflags, KBUILD_MODNAME, dev);
235 if (err) {
236 dev_err(&pdev->dev, "request_threaded_irq failure. irq = %d\n",
237 pdev->irq);
238 goto end;
239 }
240
241 if (mei_start(dev)) {
242 dev_err(&pdev->dev, "init hw failure.\n");
243 err = -ENODEV;
244 goto release_irq;
245 }
246
247 pm_runtime_set_autosuspend_delay(&pdev->dev, MEI_ME_RPM_TIMEOUT);
248 pm_runtime_use_autosuspend(&pdev->dev);
249
250 err = mei_register(dev, &pdev->dev);
251 if (err)
252 goto stop;
253
254 pci_set_drvdata(pdev, dev);
255
256 /*
257 * MEI requires to resume from runtime suspend mode
258 * in order to perform link reset flow upon system suspend.
259 */
260 dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
261
262 /*
263 * ME maps runtime suspend/resume to D0i states,
264 * hence we need to go around native PCI runtime service which
265 * eventually brings the device into D3cold/hot state,
266 * but the mei device cannot wake up from D3 unlike from D0i3.
267 * To get around the PCI device native runtime pm,
268 * ME uses runtime pm domain handlers which take precedence
269 * over the driver's pm handlers.
270 */
271 mei_me_set_pm_domain(dev);
272
273 if (mei_pg_is_enabled(dev)) {
274 pm_runtime_put_noidle(&pdev->dev);
275 if (hw->d0i3_supported)
276 pm_runtime_allow(&pdev->dev);
277 }
278
279 dev_dbg(&pdev->dev, "initialization successful.\n");
280
281 return 0;
282
283 stop:
284 mei_stop(dev);
285 release_irq:
286 mei_cancel_work(dev);
287 mei_disable_interrupts(dev);
288 free_irq(pdev->irq, dev);
289 end:
290 dev_err(&pdev->dev, "initialization failed.\n");
291 return err;
292 }
293
294 /**
295 * mei_me_shutdown - Device Removal Routine
296 *
297 * @pdev: PCI device structure
298 *
299 * mei_me_shutdown is called from the reboot notifier
300 * it's a simplified version of remove so we go down
301 * faster.
302 */
mei_me_shutdown(struct pci_dev * pdev)303 static void mei_me_shutdown(struct pci_dev *pdev)
304 {
305 struct mei_device *dev;
306
307 dev = pci_get_drvdata(pdev);
308 if (!dev)
309 return;
310
311 dev_dbg(&pdev->dev, "shutdown\n");
312 mei_stop(dev);
313
314 mei_me_unset_pm_domain(dev);
315
316 mei_disable_interrupts(dev);
317 free_irq(pdev->irq, dev);
318 }
319
320 /**
321 * mei_me_remove - Device Removal Routine
322 *
323 * @pdev: PCI device structure
324 *
325 * mei_me_remove is called by the PCI subsystem to alert the driver
326 * that it should release a PCI device.
327 */
mei_me_remove(struct pci_dev * pdev)328 static void mei_me_remove(struct pci_dev *pdev)
329 {
330 struct mei_device *dev;
331
332 dev = pci_get_drvdata(pdev);
333 if (!dev)
334 return;
335
336 if (mei_pg_is_enabled(dev))
337 pm_runtime_get_noresume(&pdev->dev);
338
339 dev_dbg(&pdev->dev, "stop\n");
340 mei_stop(dev);
341
342 mei_me_unset_pm_domain(dev);
343
344 mei_disable_interrupts(dev);
345
346 free_irq(pdev->irq, dev);
347
348 mei_deregister(dev);
349 }
350
351 #ifdef CONFIG_PM_SLEEP
mei_me_pci_prepare(struct device * device)352 static int mei_me_pci_prepare(struct device *device)
353 {
354 pm_runtime_resume(device);
355 return 0;
356 }
357
mei_me_pci_suspend(struct device * device)358 static int mei_me_pci_suspend(struct device *device)
359 {
360 struct pci_dev *pdev = to_pci_dev(device);
361 struct mei_device *dev = pci_get_drvdata(pdev);
362
363 if (!dev)
364 return -ENODEV;
365
366 dev_dbg(&pdev->dev, "suspend\n");
367
368 mei_stop(dev);
369
370 mei_disable_interrupts(dev);
371
372 free_irq(pdev->irq, dev);
373 pci_disable_msi(pdev);
374
375 return 0;
376 }
377
mei_me_pci_resume(struct device * device)378 static int mei_me_pci_resume(struct device *device)
379 {
380 struct pci_dev *pdev = to_pci_dev(device);
381 struct mei_device *dev;
382 unsigned int irqflags;
383 int err;
384
385 dev = pci_get_drvdata(pdev);
386 if (!dev)
387 return -ENODEV;
388
389 pci_enable_msi(pdev);
390
391 irqflags = pci_dev_msi_enabled(pdev) ? IRQF_ONESHOT : IRQF_SHARED;
392
393 /* request and enable interrupt */
394 err = request_threaded_irq(pdev->irq,
395 mei_me_irq_quick_handler,
396 mei_me_irq_thread_handler,
397 irqflags, KBUILD_MODNAME, dev);
398
399 if (err) {
400 dev_err(&pdev->dev, "request_threaded_irq failed: irq = %d.\n",
401 pdev->irq);
402 return err;
403 }
404
405 err = mei_restart(dev);
406 if (err) {
407 free_irq(pdev->irq, dev);
408 return err;
409 }
410
411 /* Start timer if stopped in suspend */
412 schedule_delayed_work(&dev->timer_work, HZ);
413
414 return 0;
415 }
416
mei_me_pci_complete(struct device * device)417 static void mei_me_pci_complete(struct device *device)
418 {
419 pm_runtime_suspend(device);
420 }
421 #else /* CONFIG_PM_SLEEP */
422
423 #define mei_me_pci_prepare NULL
424 #define mei_me_pci_complete NULL
425
426 #endif /* !CONFIG_PM_SLEEP */
427
428 #ifdef CONFIG_PM
mei_me_pm_runtime_idle(struct device * device)429 static int mei_me_pm_runtime_idle(struct device *device)
430 {
431 struct mei_device *dev;
432
433 dev_dbg(device, "rpm: me: runtime_idle\n");
434
435 dev = dev_get_drvdata(device);
436 if (!dev)
437 return -ENODEV;
438 if (mei_write_is_idle(dev))
439 pm_runtime_autosuspend(device);
440
441 return -EBUSY;
442 }
443
mei_me_pm_runtime_suspend(struct device * device)444 static int mei_me_pm_runtime_suspend(struct device *device)
445 {
446 struct mei_device *dev;
447 int ret;
448
449 dev_dbg(device, "rpm: me: runtime suspend\n");
450
451 dev = dev_get_drvdata(device);
452 if (!dev)
453 return -ENODEV;
454
455 mutex_lock(&dev->device_lock);
456
457 if (mei_write_is_idle(dev))
458 ret = mei_me_pg_enter_sync(dev);
459 else
460 ret = -EAGAIN;
461
462 mutex_unlock(&dev->device_lock);
463
464 dev_dbg(device, "rpm: me: runtime suspend ret=%d\n", ret);
465
466 if (ret && ret != -EAGAIN)
467 schedule_work(&dev->reset_work);
468
469 return ret;
470 }
471
mei_me_pm_runtime_resume(struct device * device)472 static int mei_me_pm_runtime_resume(struct device *device)
473 {
474 struct mei_device *dev;
475 int ret;
476
477 dev_dbg(device, "rpm: me: runtime resume\n");
478
479 dev = dev_get_drvdata(device);
480 if (!dev)
481 return -ENODEV;
482
483 mutex_lock(&dev->device_lock);
484
485 ret = mei_me_pg_exit_sync(dev);
486
487 mutex_unlock(&dev->device_lock);
488
489 dev_dbg(device, "rpm: me: runtime resume ret = %d\n", ret);
490
491 if (ret)
492 schedule_work(&dev->reset_work);
493
494 return ret;
495 }
496
497 /**
498 * mei_me_set_pm_domain - fill and set pm domain structure for device
499 *
500 * @dev: mei_device
501 */
mei_me_set_pm_domain(struct mei_device * dev)502 static inline void mei_me_set_pm_domain(struct mei_device *dev)
503 {
504 struct pci_dev *pdev = to_pci_dev(dev->dev);
505
506 if (pdev->dev.bus && pdev->dev.bus->pm) {
507 dev->pg_domain.ops = *pdev->dev.bus->pm;
508
509 dev->pg_domain.ops.runtime_suspend = mei_me_pm_runtime_suspend;
510 dev->pg_domain.ops.runtime_resume = mei_me_pm_runtime_resume;
511 dev->pg_domain.ops.runtime_idle = mei_me_pm_runtime_idle;
512
513 dev_pm_domain_set(&pdev->dev, &dev->pg_domain);
514 }
515 }
516
517 /**
518 * mei_me_unset_pm_domain - clean pm domain structure for device
519 *
520 * @dev: mei_device
521 */
mei_me_unset_pm_domain(struct mei_device * dev)522 static inline void mei_me_unset_pm_domain(struct mei_device *dev)
523 {
524 /* stop using pm callbacks if any */
525 dev_pm_domain_set(dev->dev, NULL);
526 }
527
528 static const struct dev_pm_ops mei_me_pm_ops = {
529 .prepare = mei_me_pci_prepare,
530 .complete = mei_me_pci_complete,
531 SET_SYSTEM_SLEEP_PM_OPS(mei_me_pci_suspend,
532 mei_me_pci_resume)
533 SET_RUNTIME_PM_OPS(
534 mei_me_pm_runtime_suspend,
535 mei_me_pm_runtime_resume,
536 mei_me_pm_runtime_idle)
537 };
538
539 #define MEI_ME_PM_OPS (&mei_me_pm_ops)
540 #else
541 #define MEI_ME_PM_OPS NULL
542 #endif /* CONFIG_PM */
543 /*
544 * PCI driver structure
545 */
546 static struct pci_driver mei_me_driver = {
547 .name = KBUILD_MODNAME,
548 .id_table = mei_me_pci_tbl,
549 .probe = mei_me_probe,
550 .remove = mei_me_remove,
551 .shutdown = mei_me_shutdown,
552 .driver.pm = MEI_ME_PM_OPS,
553 .driver.probe_type = PROBE_PREFER_ASYNCHRONOUS,
554 };
555
556 module_pci_driver(mei_me_driver);
557
558 MODULE_AUTHOR("Intel Corporation");
559 MODULE_DESCRIPTION("Intel(R) Management Engine Interface");
560 MODULE_LICENSE("GPL v2");
561