1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2020-2023 Intel Corporation
4 */
5
6 #include <linux/firmware.h>
7 #include <linux/module.h>
8 #include <linux/pci.h>
9
10 #include <drm/drm_accel.h>
11 #include <drm/drm_drv.h>
12 #include <drm/drm_file.h>
13 #include <drm/drm_gem.h>
14 #include <drm/drm_ioctl.h>
15 #include <drm/drm_prime.h>
16
17 #include "vpu_boot_api.h"
18 #include "ivpu_drv.h"
19 #include "ivpu_fw.h"
20 #include "ivpu_gem.h"
21 #include "ivpu_hw.h"
22 #include "ivpu_ipc.h"
23 #include "ivpu_job.h"
24 #include "ivpu_jsm_msg.h"
25 #include "ivpu_mmu.h"
26 #include "ivpu_mmu_context.h"
27 #include "ivpu_pm.h"
28
29 #ifndef DRIVER_VERSION_STR
30 #define DRIVER_VERSION_STR __stringify(DRM_IVPU_DRIVER_MAJOR) "." \
31 __stringify(DRM_IVPU_DRIVER_MINOR) "."
32 #endif
33
34 static const struct drm_driver driver;
35
36 static struct lock_class_key submitted_jobs_xa_lock_class_key;
37
38 int ivpu_dbg_mask;
39 module_param_named(dbg_mask, ivpu_dbg_mask, int, 0644);
40 MODULE_PARM_DESC(dbg_mask, "Driver debug mask. See IVPU_DBG_* macros.");
41
42 int ivpu_test_mode;
43 module_param_named_unsafe(test_mode, ivpu_test_mode, int, 0644);
44 MODULE_PARM_DESC(test_mode, "Test mode: 0 - normal operation, 1 - fw unit test, 2 - null hw");
45
46 u8 ivpu_pll_min_ratio;
47 module_param_named(pll_min_ratio, ivpu_pll_min_ratio, byte, 0644);
48 MODULE_PARM_DESC(pll_min_ratio, "Minimum PLL ratio used to set VPU frequency");
49
50 u8 ivpu_pll_max_ratio = U8_MAX;
51 module_param_named(pll_max_ratio, ivpu_pll_max_ratio, byte, 0644);
52 MODULE_PARM_DESC(pll_max_ratio, "Maximum PLL ratio used to set VPU frequency");
53
ivpu_file_priv_get(struct ivpu_file_priv * file_priv)54 struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv)
55 {
56 struct ivpu_device *vdev = file_priv->vdev;
57
58 kref_get(&file_priv->ref);
59
60 ivpu_dbg(vdev, KREF, "file_priv get: ctx %u refcount %u\n",
61 file_priv->ctx.id, kref_read(&file_priv->ref));
62
63 return file_priv;
64 }
65
ivpu_file_priv_get_by_ctx_id(struct ivpu_device * vdev,unsigned long id)66 struct ivpu_file_priv *ivpu_file_priv_get_by_ctx_id(struct ivpu_device *vdev, unsigned long id)
67 {
68 struct ivpu_file_priv *file_priv;
69
70 xa_lock_irq(&vdev->context_xa);
71 file_priv = xa_load(&vdev->context_xa, id);
72 /* file_priv may still be in context_xa during file_priv_release() */
73 if (file_priv && !kref_get_unless_zero(&file_priv->ref))
74 file_priv = NULL;
75 xa_unlock_irq(&vdev->context_xa);
76
77 if (file_priv)
78 ivpu_dbg(vdev, KREF, "file_priv get by id: ctx %u refcount %u\n",
79 file_priv->ctx.id, kref_read(&file_priv->ref));
80
81 return file_priv;
82 }
83
file_priv_release(struct kref * ref)84 static void file_priv_release(struct kref *ref)
85 {
86 struct ivpu_file_priv *file_priv = container_of(ref, struct ivpu_file_priv, ref);
87 struct ivpu_device *vdev = file_priv->vdev;
88
89 ivpu_dbg(vdev, FILE, "file_priv release: ctx %u\n", file_priv->ctx.id);
90
91 ivpu_cmdq_release_all(file_priv);
92 ivpu_bo_remove_all_bos_from_context(&file_priv->ctx);
93 ivpu_jsm_context_release(vdev, file_priv->ctx.id);
94 ivpu_mmu_user_context_fini(vdev, &file_priv->ctx);
95 drm_WARN_ON(&vdev->drm, xa_erase_irq(&vdev->context_xa, file_priv->ctx.id) != file_priv);
96 mutex_destroy(&file_priv->lock);
97 kfree(file_priv);
98 }
99
ivpu_file_priv_put(struct ivpu_file_priv ** link)100 void ivpu_file_priv_put(struct ivpu_file_priv **link)
101 {
102 struct ivpu_file_priv *file_priv = *link;
103 struct ivpu_device *vdev = file_priv->vdev;
104
105 drm_WARN_ON(&vdev->drm, !file_priv);
106
107 ivpu_dbg(vdev, KREF, "file_priv put: ctx %u refcount %u\n",
108 file_priv->ctx.id, kref_read(&file_priv->ref));
109
110 *link = NULL;
111 kref_put(&file_priv->ref, file_priv_release);
112 }
113
ivpu_get_param_ioctl(struct drm_device * dev,void * data,struct drm_file * file)114 static int ivpu_get_param_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
115 {
116 struct ivpu_file_priv *file_priv = file->driver_priv;
117 struct ivpu_device *vdev = file_priv->vdev;
118 struct pci_dev *pdev = to_pci_dev(vdev->drm.dev);
119 struct drm_ivpu_param *args = data;
120 int ret = 0;
121
122 switch (args->param) {
123 case DRM_IVPU_PARAM_DEVICE_ID:
124 args->value = pdev->device;
125 break;
126 case DRM_IVPU_PARAM_DEVICE_REVISION:
127 args->value = pdev->revision;
128 break;
129 case DRM_IVPU_PARAM_PLATFORM_TYPE:
130 args->value = vdev->platform;
131 break;
132 case DRM_IVPU_PARAM_CORE_CLOCK_RATE:
133 args->value = ivpu_hw_reg_pll_freq_get(vdev);
134 break;
135 case DRM_IVPU_PARAM_NUM_CONTEXTS:
136 args->value = ivpu_get_context_count(vdev);
137 break;
138 case DRM_IVPU_PARAM_CONTEXT_BASE_ADDRESS:
139 args->value = vdev->hw->ranges.user_low.start;
140 break;
141 case DRM_IVPU_PARAM_CONTEXT_PRIORITY:
142 args->value = file_priv->priority;
143 break;
144 case DRM_IVPU_PARAM_CONTEXT_ID:
145 args->value = file_priv->ctx.id;
146 break;
147 case DRM_IVPU_PARAM_FW_API_VERSION:
148 if (args->index < VPU_FW_API_VER_NUM) {
149 struct vpu_firmware_header *fw_hdr;
150
151 fw_hdr = (struct vpu_firmware_header *)vdev->fw->file->data;
152 args->value = fw_hdr->api_version[args->index];
153 } else {
154 ret = -EINVAL;
155 }
156 break;
157 case DRM_IVPU_PARAM_ENGINE_HEARTBEAT:
158 ret = ivpu_jsm_get_heartbeat(vdev, args->index, &args->value);
159 break;
160 case DRM_IVPU_PARAM_UNIQUE_INFERENCE_ID:
161 args->value = (u64)atomic64_inc_return(&vdev->unique_id_counter);
162 break;
163 case DRM_IVPU_PARAM_TILE_CONFIG:
164 args->value = vdev->hw->tile_fuse;
165 break;
166 case DRM_IVPU_PARAM_SKU:
167 args->value = vdev->hw->sku;
168 break;
169 default:
170 ret = -EINVAL;
171 break;
172 }
173
174 return ret;
175 }
176
ivpu_set_param_ioctl(struct drm_device * dev,void * data,struct drm_file * file)177 static int ivpu_set_param_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
178 {
179 struct ivpu_file_priv *file_priv = file->driver_priv;
180 struct drm_ivpu_param *args = data;
181 int ret = 0;
182
183 switch (args->param) {
184 case DRM_IVPU_PARAM_CONTEXT_PRIORITY:
185 if (args->value <= DRM_IVPU_CONTEXT_PRIORITY_REALTIME)
186 file_priv->priority = args->value;
187 else
188 ret = -EINVAL;
189 break;
190 default:
191 ret = -EINVAL;
192 }
193
194 return ret;
195 }
196
ivpu_open(struct drm_device * dev,struct drm_file * file)197 static int ivpu_open(struct drm_device *dev, struct drm_file *file)
198 {
199 struct ivpu_device *vdev = to_ivpu_device(dev);
200 struct ivpu_file_priv *file_priv;
201 u32 ctx_id;
202 void *old;
203 int ret;
204
205 ret = xa_alloc_irq(&vdev->context_xa, &ctx_id, NULL, vdev->context_xa_limit, GFP_KERNEL);
206 if (ret) {
207 ivpu_err(vdev, "Failed to allocate context id: %d\n", ret);
208 return ret;
209 }
210
211 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
212 if (!file_priv) {
213 ret = -ENOMEM;
214 goto err_xa_erase;
215 }
216
217 file_priv->vdev = vdev;
218 file_priv->priority = DRM_IVPU_CONTEXT_PRIORITY_NORMAL;
219 kref_init(&file_priv->ref);
220 mutex_init(&file_priv->lock);
221
222 ret = ivpu_mmu_user_context_init(vdev, &file_priv->ctx, ctx_id);
223 if (ret)
224 goto err_mutex_destroy;
225
226 old = xa_store_irq(&vdev->context_xa, ctx_id, file_priv, GFP_KERNEL);
227 if (xa_is_err(old)) {
228 ret = xa_err(old);
229 ivpu_err(vdev, "Failed to store context %u: %d\n", ctx_id, ret);
230 goto err_ctx_fini;
231 }
232
233 ivpu_dbg(vdev, FILE, "file_priv create: ctx %u process %s pid %d\n",
234 ctx_id, current->comm, task_pid_nr(current));
235
236 file->driver_priv = file_priv;
237 return 0;
238
239 err_ctx_fini:
240 ivpu_mmu_user_context_fini(vdev, &file_priv->ctx);
241 err_mutex_destroy:
242 mutex_destroy(&file_priv->lock);
243 kfree(file_priv);
244 err_xa_erase:
245 xa_erase_irq(&vdev->context_xa, ctx_id);
246 return ret;
247 }
248
ivpu_postclose(struct drm_device * dev,struct drm_file * file)249 static void ivpu_postclose(struct drm_device *dev, struct drm_file *file)
250 {
251 struct ivpu_file_priv *file_priv = file->driver_priv;
252 struct ivpu_device *vdev = to_ivpu_device(dev);
253
254 ivpu_dbg(vdev, FILE, "file_priv close: ctx %u process %s pid %d\n",
255 file_priv->ctx.id, current->comm, task_pid_nr(current));
256
257 ivpu_file_priv_put(&file_priv);
258 }
259
260 static const struct drm_ioctl_desc ivpu_drm_ioctls[] = {
261 DRM_IOCTL_DEF_DRV(IVPU_GET_PARAM, ivpu_get_param_ioctl, 0),
262 DRM_IOCTL_DEF_DRV(IVPU_SET_PARAM, ivpu_set_param_ioctl, 0),
263 DRM_IOCTL_DEF_DRV(IVPU_BO_CREATE, ivpu_bo_create_ioctl, 0),
264 DRM_IOCTL_DEF_DRV(IVPU_BO_INFO, ivpu_bo_info_ioctl, 0),
265 DRM_IOCTL_DEF_DRV(IVPU_SUBMIT, ivpu_submit_ioctl, 0),
266 DRM_IOCTL_DEF_DRV(IVPU_BO_WAIT, ivpu_bo_wait_ioctl, 0),
267 };
268
ivpu_wait_for_ready(struct ivpu_device * vdev)269 static int ivpu_wait_for_ready(struct ivpu_device *vdev)
270 {
271 struct ivpu_ipc_consumer cons;
272 struct ivpu_ipc_hdr ipc_hdr;
273 unsigned long timeout;
274 int ret;
275
276 if (ivpu_test_mode == IVPU_TEST_MODE_FW_TEST)
277 return 0;
278
279 ivpu_ipc_consumer_add(vdev, &cons, IVPU_IPC_CHAN_BOOT_MSG);
280
281 timeout = jiffies + msecs_to_jiffies(vdev->timeout.boot);
282 while (1) {
283 ret = ivpu_ipc_irq_handler(vdev);
284 if (ret)
285 break;
286 ret = ivpu_ipc_receive(vdev, &cons, &ipc_hdr, NULL, 0);
287 if (ret != -ETIMEDOUT || time_after_eq(jiffies, timeout))
288 break;
289
290 cond_resched();
291 }
292
293 ivpu_ipc_consumer_del(vdev, &cons);
294
295 if (!ret && ipc_hdr.data_addr != IVPU_IPC_BOOT_MSG_DATA_ADDR) {
296 ivpu_err(vdev, "Invalid VPU ready message: 0x%x\n",
297 ipc_hdr.data_addr);
298 return -EIO;
299 }
300
301 if (!ret)
302 ivpu_info(vdev, "VPU ready message received successfully\n");
303 else
304 ivpu_hw_diagnose_failure(vdev);
305
306 return ret;
307 }
308
309 /**
310 * ivpu_boot() - Start VPU firmware
311 * @vdev: VPU device
312 *
313 * This function is paired with ivpu_shutdown() but it doesn't power up the
314 * VPU because power up has to be called very early in ivpu_probe().
315 */
ivpu_boot(struct ivpu_device * vdev)316 int ivpu_boot(struct ivpu_device *vdev)
317 {
318 int ret;
319
320 /* Update boot params located at first 4KB of FW memory */
321 ivpu_fw_boot_params_setup(vdev, vdev->fw->mem->kvaddr);
322
323 ret = ivpu_hw_boot_fw(vdev);
324 if (ret) {
325 ivpu_err(vdev, "Failed to start the firmware: %d\n", ret);
326 return ret;
327 }
328
329 ret = ivpu_wait_for_ready(vdev);
330 if (ret) {
331 ivpu_err(vdev, "Failed to boot the firmware: %d\n", ret);
332 return ret;
333 }
334
335 ivpu_hw_irq_clear(vdev);
336 enable_irq(vdev->irq);
337 ivpu_hw_irq_enable(vdev);
338 ivpu_ipc_enable(vdev);
339 return 0;
340 }
341
ivpu_shutdown(struct ivpu_device * vdev)342 int ivpu_shutdown(struct ivpu_device *vdev)
343 {
344 int ret;
345
346 ivpu_hw_irq_disable(vdev);
347 disable_irq(vdev->irq);
348 ivpu_ipc_disable(vdev);
349 ivpu_mmu_disable(vdev);
350
351 ret = ivpu_hw_power_down(vdev);
352 if (ret)
353 ivpu_warn(vdev, "Failed to power down HW: %d\n", ret);
354
355 return ret;
356 }
357
358 static const struct file_operations ivpu_fops = {
359 .owner = THIS_MODULE,
360 DRM_ACCEL_FOPS,
361 };
362
363 static const struct drm_driver driver = {
364 .driver_features = DRIVER_GEM | DRIVER_COMPUTE_ACCEL,
365
366 .open = ivpu_open,
367 .postclose = ivpu_postclose,
368 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
369 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
370 .gem_prime_import = ivpu_gem_prime_import,
371 .gem_prime_mmap = drm_gem_prime_mmap,
372
373 .ioctls = ivpu_drm_ioctls,
374 .num_ioctls = ARRAY_SIZE(ivpu_drm_ioctls),
375 .fops = &ivpu_fops,
376
377 .name = DRIVER_NAME,
378 .desc = DRIVER_DESC,
379 .date = DRIVER_DATE,
380 .major = DRM_IVPU_DRIVER_MAJOR,
381 .minor = DRM_IVPU_DRIVER_MINOR,
382 };
383
ivpu_irq_init(struct ivpu_device * vdev)384 static int ivpu_irq_init(struct ivpu_device *vdev)
385 {
386 struct pci_dev *pdev = to_pci_dev(vdev->drm.dev);
387 int ret;
388
389 ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI | PCI_IRQ_MSIX);
390 if (ret < 0) {
391 ivpu_err(vdev, "Failed to allocate a MSI IRQ: %d\n", ret);
392 return ret;
393 }
394
395 vdev->irq = pci_irq_vector(pdev, 0);
396
397 ret = devm_request_irq(vdev->drm.dev, vdev->irq, vdev->hw->ops->irq_handler,
398 IRQF_NO_AUTOEN, DRIVER_NAME, vdev);
399 if (ret)
400 ivpu_err(vdev, "Failed to request an IRQ %d\n", ret);
401
402 return ret;
403 }
404
ivpu_pci_init(struct ivpu_device * vdev)405 static int ivpu_pci_init(struct ivpu_device *vdev)
406 {
407 struct pci_dev *pdev = to_pci_dev(vdev->drm.dev);
408 struct resource *bar0 = &pdev->resource[0];
409 struct resource *bar4 = &pdev->resource[4];
410 int ret;
411
412 ivpu_dbg(vdev, MISC, "Mapping BAR0 (RegV) %pR\n", bar0);
413 vdev->regv = devm_ioremap_resource(vdev->drm.dev, bar0);
414 if (IS_ERR(vdev->regv)) {
415 ivpu_err(vdev, "Failed to map bar 0: %pe\n", vdev->regv);
416 return PTR_ERR(vdev->regv);
417 }
418
419 ivpu_dbg(vdev, MISC, "Mapping BAR4 (RegB) %pR\n", bar4);
420 vdev->regb = devm_ioremap_resource(vdev->drm.dev, bar4);
421 if (IS_ERR(vdev->regb)) {
422 ivpu_err(vdev, "Failed to map bar 4: %pe\n", vdev->regb);
423 return PTR_ERR(vdev->regb);
424 }
425
426 ret = dma_set_mask_and_coherent(vdev->drm.dev, DMA_BIT_MASK(38));
427 if (ret) {
428 ivpu_err(vdev, "Failed to set DMA mask: %d\n", ret);
429 return ret;
430 }
431 dma_set_max_seg_size(vdev->drm.dev, UINT_MAX);
432
433 /* Clear any pending errors */
434 pcie_capability_clear_word(pdev, PCI_EXP_DEVSTA, 0x3f);
435
436 ret = pcim_enable_device(pdev);
437 if (ret) {
438 ivpu_err(vdev, "Failed to enable PCI device: %d\n", ret);
439 return ret;
440 }
441
442 pci_set_master(pdev);
443
444 return 0;
445 }
446
ivpu_dev_init(struct ivpu_device * vdev)447 static int ivpu_dev_init(struct ivpu_device *vdev)
448 {
449 int ret;
450
451 vdev->hw = drmm_kzalloc(&vdev->drm, sizeof(*vdev->hw), GFP_KERNEL);
452 if (!vdev->hw)
453 return -ENOMEM;
454
455 vdev->mmu = drmm_kzalloc(&vdev->drm, sizeof(*vdev->mmu), GFP_KERNEL);
456 if (!vdev->mmu)
457 return -ENOMEM;
458
459 vdev->fw = drmm_kzalloc(&vdev->drm, sizeof(*vdev->fw), GFP_KERNEL);
460 if (!vdev->fw)
461 return -ENOMEM;
462
463 vdev->ipc = drmm_kzalloc(&vdev->drm, sizeof(*vdev->ipc), GFP_KERNEL);
464 if (!vdev->ipc)
465 return -ENOMEM;
466
467 vdev->pm = drmm_kzalloc(&vdev->drm, sizeof(*vdev->pm), GFP_KERNEL);
468 if (!vdev->pm)
469 return -ENOMEM;
470
471 vdev->hw->ops = &ivpu_hw_mtl_ops;
472 vdev->platform = IVPU_PLATFORM_INVALID;
473 vdev->context_xa_limit.min = IVPU_GLOBAL_CONTEXT_MMU_SSID + 1;
474 vdev->context_xa_limit.max = IVPU_CONTEXT_LIMIT;
475 atomic64_set(&vdev->unique_id_counter, 0);
476 xa_init_flags(&vdev->context_xa, XA_FLAGS_ALLOC);
477 xa_init_flags(&vdev->submitted_jobs_xa, XA_FLAGS_ALLOC1);
478 lockdep_set_class(&vdev->submitted_jobs_xa.xa_lock, &submitted_jobs_xa_lock_class_key);
479
480 ret = ivpu_pci_init(vdev);
481 if (ret) {
482 ivpu_err(vdev, "Failed to initialize PCI device: %d\n", ret);
483 goto err_xa_destroy;
484 }
485
486 ret = ivpu_irq_init(vdev);
487 if (ret) {
488 ivpu_err(vdev, "Failed to initialize IRQs: %d\n", ret);
489 goto err_xa_destroy;
490 }
491
492 /* Init basic HW info based on buttress registers which are accessible before power up */
493 ret = ivpu_hw_info_init(vdev);
494 if (ret) {
495 ivpu_err(vdev, "Failed to initialize HW info: %d\n", ret);
496 goto err_xa_destroy;
497 }
498
499 /* Power up early so the rest of init code can access VPU registers */
500 ret = ivpu_hw_power_up(vdev);
501 if (ret) {
502 ivpu_err(vdev, "Failed to power up HW: %d\n", ret);
503 goto err_xa_destroy;
504 }
505
506 ret = ivpu_mmu_global_context_init(vdev);
507 if (ret) {
508 ivpu_err(vdev, "Failed to initialize global MMU context: %d\n", ret);
509 goto err_power_down;
510 }
511
512 ret = ivpu_mmu_init(vdev);
513 if (ret) {
514 ivpu_err(vdev, "Failed to initialize MMU device: %d\n", ret);
515 goto err_mmu_gctx_fini;
516 }
517
518 ret = ivpu_fw_init(vdev);
519 if (ret) {
520 ivpu_err(vdev, "Failed to initialize firmware: %d\n", ret);
521 goto err_mmu_gctx_fini;
522 }
523
524 ret = ivpu_ipc_init(vdev);
525 if (ret) {
526 ivpu_err(vdev, "Failed to initialize IPC: %d\n", ret);
527 goto err_fw_fini;
528 }
529
530 ret = ivpu_pm_init(vdev);
531 if (ret) {
532 ivpu_err(vdev, "Failed to initialize PM: %d\n", ret);
533 goto err_ipc_fini;
534 }
535
536 ret = ivpu_job_done_thread_init(vdev);
537 if (ret) {
538 ivpu_err(vdev, "Failed to initialize job done thread: %d\n", ret);
539 goto err_ipc_fini;
540 }
541
542 ret = ivpu_fw_load(vdev);
543 if (ret) {
544 ivpu_err(vdev, "Failed to load firmware: %d\n", ret);
545 goto err_job_done_thread_fini;
546 }
547
548 ret = ivpu_boot(vdev);
549 if (ret) {
550 ivpu_err(vdev, "Failed to boot: %d\n", ret);
551 goto err_job_done_thread_fini;
552 }
553
554 ivpu_pm_enable(vdev);
555
556 return 0;
557
558 err_job_done_thread_fini:
559 ivpu_job_done_thread_fini(vdev);
560 err_ipc_fini:
561 ivpu_ipc_fini(vdev);
562 err_fw_fini:
563 ivpu_fw_fini(vdev);
564 err_mmu_gctx_fini:
565 ivpu_mmu_global_context_fini(vdev);
566 err_power_down:
567 ivpu_hw_power_down(vdev);
568 err_xa_destroy:
569 xa_destroy(&vdev->submitted_jobs_xa);
570 xa_destroy(&vdev->context_xa);
571 return ret;
572 }
573
ivpu_dev_fini(struct ivpu_device * vdev)574 static void ivpu_dev_fini(struct ivpu_device *vdev)
575 {
576 ivpu_pm_disable(vdev);
577 ivpu_shutdown(vdev);
578 ivpu_job_done_thread_fini(vdev);
579 ivpu_ipc_fini(vdev);
580 ivpu_fw_fini(vdev);
581 ivpu_mmu_global_context_fini(vdev);
582
583 drm_WARN_ON(&vdev->drm, !xa_empty(&vdev->submitted_jobs_xa));
584 xa_destroy(&vdev->submitted_jobs_xa);
585 drm_WARN_ON(&vdev->drm, !xa_empty(&vdev->context_xa));
586 xa_destroy(&vdev->context_xa);
587 }
588
589 static struct pci_device_id ivpu_pci_ids[] = {
590 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_MTL) },
591 { }
592 };
593 MODULE_DEVICE_TABLE(pci, ivpu_pci_ids);
594
ivpu_probe(struct pci_dev * pdev,const struct pci_device_id * id)595 static int ivpu_probe(struct pci_dev *pdev, const struct pci_device_id *id)
596 {
597 struct ivpu_device *vdev;
598 int ret;
599
600 vdev = devm_drm_dev_alloc(&pdev->dev, &driver, struct ivpu_device, drm);
601 if (IS_ERR(vdev))
602 return PTR_ERR(vdev);
603
604 pci_set_drvdata(pdev, vdev);
605
606 ret = ivpu_dev_init(vdev);
607 if (ret) {
608 dev_err(&pdev->dev, "Failed to initialize VPU device: %d\n", ret);
609 return ret;
610 }
611
612 ret = drm_dev_register(&vdev->drm, 0);
613 if (ret) {
614 dev_err(&pdev->dev, "Failed to register DRM device: %d\n", ret);
615 ivpu_dev_fini(vdev);
616 }
617
618 return ret;
619 }
620
ivpu_remove(struct pci_dev * pdev)621 static void ivpu_remove(struct pci_dev *pdev)
622 {
623 struct ivpu_device *vdev = pci_get_drvdata(pdev);
624
625 drm_dev_unregister(&vdev->drm);
626 ivpu_dev_fini(vdev);
627 }
628
629 static const struct dev_pm_ops ivpu_drv_pci_pm = {
630 SET_SYSTEM_SLEEP_PM_OPS(ivpu_pm_suspend_cb, ivpu_pm_resume_cb)
631 SET_RUNTIME_PM_OPS(ivpu_pm_runtime_suspend_cb, ivpu_pm_runtime_resume_cb, NULL)
632 };
633
634 static const struct pci_error_handlers ivpu_drv_pci_err = {
635 .reset_prepare = ivpu_pm_reset_prepare_cb,
636 .reset_done = ivpu_pm_reset_done_cb,
637 };
638
639 static struct pci_driver ivpu_pci_driver = {
640 .name = KBUILD_MODNAME,
641 .id_table = ivpu_pci_ids,
642 .probe = ivpu_probe,
643 .remove = ivpu_remove,
644 .driver = {
645 .pm = &ivpu_drv_pci_pm,
646 },
647 .err_handler = &ivpu_drv_pci_err,
648 };
649
650 module_pci_driver(ivpu_pci_driver);
651
652 MODULE_AUTHOR("Intel Corporation");
653 MODULE_DESCRIPTION(DRIVER_DESC);
654 MODULE_LICENSE("GPL and additional rights");
655 MODULE_VERSION(DRIVER_VERSION_STR);
656