1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * fsl-mc object allocator driver
4 *
5 * Copyright (C) 2013-2016 Freescale Semiconductor, Inc.
6 *
7 */
8
9 #include <linux/module.h>
10 #include <linux/msi.h>
11 #include <linux/fsl/mc.h>
12
13 #include "fsl-mc-private.h"
14
fsl_mc_is_allocatable(struct fsl_mc_device * mc_dev)15 static bool __must_check fsl_mc_is_allocatable(struct fsl_mc_device *mc_dev)
16 {
17 return is_fsl_mc_bus_dpbp(mc_dev) ||
18 is_fsl_mc_bus_dpmcp(mc_dev) ||
19 is_fsl_mc_bus_dpcon(mc_dev);
20 }
21
22 /**
23 * fsl_mc_resource_pool_add_device - add allocatable object to a resource
24 * pool of a given fsl-mc bus
25 *
26 * @mc_bus: pointer to the fsl-mc bus
27 * @pool_type: pool type
28 * @mc_dev: pointer to allocatable fsl-mc device
29 */
fsl_mc_resource_pool_add_device(struct fsl_mc_bus * mc_bus,enum fsl_mc_pool_type pool_type,struct fsl_mc_device * mc_dev)30 static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus
31 *mc_bus,
32 enum fsl_mc_pool_type
33 pool_type,
34 struct fsl_mc_device
35 *mc_dev)
36 {
37 struct fsl_mc_resource_pool *res_pool;
38 struct fsl_mc_resource *resource;
39 struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev;
40 int error = -EINVAL;
41
42 if (pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES)
43 goto out;
44 if (!fsl_mc_is_allocatable(mc_dev))
45 goto out;
46 if (mc_dev->resource)
47 goto out;
48
49 res_pool = &mc_bus->resource_pools[pool_type];
50 if (res_pool->type != pool_type)
51 goto out;
52 if (res_pool->mc_bus != mc_bus)
53 goto out;
54
55 mutex_lock(&res_pool->mutex);
56
57 if (res_pool->max_count < 0)
58 goto out_unlock;
59 if (res_pool->free_count < 0 ||
60 res_pool->free_count > res_pool->max_count)
61 goto out_unlock;
62
63 resource = devm_kzalloc(&mc_bus_dev->dev, sizeof(*resource),
64 GFP_KERNEL);
65 if (!resource) {
66 error = -ENOMEM;
67 dev_err(&mc_bus_dev->dev,
68 "Failed to allocate memory for fsl_mc_resource\n");
69 goto out_unlock;
70 }
71
72 resource->type = pool_type;
73 resource->id = mc_dev->obj_desc.id;
74 resource->data = mc_dev;
75 resource->parent_pool = res_pool;
76 INIT_LIST_HEAD(&resource->node);
77 list_add_tail(&resource->node, &res_pool->free_list);
78 mc_dev->resource = resource;
79 res_pool->free_count++;
80 res_pool->max_count++;
81 error = 0;
82 out_unlock:
83 mutex_unlock(&res_pool->mutex);
84 out:
85 return error;
86 }
87
88 /**
89 * fsl_mc_resource_pool_remove_device - remove an allocatable device from a
90 * resource pool
91 *
92 * @mc_dev: pointer to allocatable fsl-mc device
93 *
94 * It permanently removes an allocatable fsl-mc device from the resource
95 * pool. It's an error if the device is in use.
96 */
fsl_mc_resource_pool_remove_device(struct fsl_mc_device * mc_dev)97 static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device
98 *mc_dev)
99 {
100 struct fsl_mc_device *mc_bus_dev;
101 struct fsl_mc_bus *mc_bus;
102 struct fsl_mc_resource_pool *res_pool;
103 struct fsl_mc_resource *resource;
104 int error = -EINVAL;
105
106 mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
107 mc_bus = to_fsl_mc_bus(mc_bus_dev);
108
109 resource = mc_dev->resource;
110 if (!resource || resource->data != mc_dev) {
111 dev_err(&mc_bus_dev->dev, "resource mismatch\n");
112 goto out;
113 }
114
115 res_pool = resource->parent_pool;
116 if (res_pool != &mc_bus->resource_pools[resource->type]) {
117 dev_err(&mc_bus_dev->dev, "pool mismatch\n");
118 goto out;
119 }
120
121 mutex_lock(&res_pool->mutex);
122
123 if (res_pool->max_count <= 0) {
124 dev_err(&mc_bus_dev->dev, "max_count underflow\n");
125 goto out_unlock;
126 }
127 if (res_pool->free_count <= 0 ||
128 res_pool->free_count > res_pool->max_count) {
129 dev_err(&mc_bus_dev->dev, "free_count mismatch\n");
130 goto out_unlock;
131 }
132
133 /*
134 * If the device is currently allocated, its resource is not
135 * in the free list and thus, the device cannot be removed.
136 */
137 if (list_empty(&resource->node)) {
138 error = -EBUSY;
139 dev_err(&mc_bus_dev->dev,
140 "Device %s cannot be removed from resource pool\n",
141 dev_name(&mc_dev->dev));
142 goto out_unlock;
143 }
144
145 list_del_init(&resource->node);
146 res_pool->free_count--;
147 res_pool->max_count--;
148
149 devm_kfree(&mc_bus_dev->dev, resource);
150 mc_dev->resource = NULL;
151 error = 0;
152 out_unlock:
153 mutex_unlock(&res_pool->mutex);
154 out:
155 return error;
156 }
157
158 static const char *const fsl_mc_pool_type_strings[] = {
159 [FSL_MC_POOL_DPMCP] = "dpmcp",
160 [FSL_MC_POOL_DPBP] = "dpbp",
161 [FSL_MC_POOL_DPCON] = "dpcon",
162 [FSL_MC_POOL_IRQ] = "irq",
163 };
164
object_type_to_pool_type(const char * object_type,enum fsl_mc_pool_type * pool_type)165 static int __must_check object_type_to_pool_type(const char *object_type,
166 enum fsl_mc_pool_type
167 *pool_type)
168 {
169 unsigned int i;
170
171 for (i = 0; i < ARRAY_SIZE(fsl_mc_pool_type_strings); i++) {
172 if (strcmp(object_type, fsl_mc_pool_type_strings[i]) == 0) {
173 *pool_type = i;
174 return 0;
175 }
176 }
177
178 return -EINVAL;
179 }
180
fsl_mc_resource_allocate(struct fsl_mc_bus * mc_bus,enum fsl_mc_pool_type pool_type,struct fsl_mc_resource ** new_resource)181 int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
182 enum fsl_mc_pool_type pool_type,
183 struct fsl_mc_resource **new_resource)
184 {
185 struct fsl_mc_resource_pool *res_pool;
186 struct fsl_mc_resource *resource;
187 struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev;
188 int error = -EINVAL;
189
190 BUILD_BUG_ON(ARRAY_SIZE(fsl_mc_pool_type_strings) !=
191 FSL_MC_NUM_POOL_TYPES);
192
193 *new_resource = NULL;
194 if (pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES)
195 goto out;
196
197 res_pool = &mc_bus->resource_pools[pool_type];
198 if (res_pool->mc_bus != mc_bus)
199 goto out;
200
201 mutex_lock(&res_pool->mutex);
202 resource = list_first_entry_or_null(&res_pool->free_list,
203 struct fsl_mc_resource, node);
204
205 if (!resource) {
206 error = -ENXIO;
207 dev_err(&mc_bus_dev->dev,
208 "No more resources of type %s left\n",
209 fsl_mc_pool_type_strings[pool_type]);
210 goto out_unlock;
211 }
212
213 if (resource->type != pool_type)
214 goto out_unlock;
215 if (resource->parent_pool != res_pool)
216 goto out_unlock;
217 if (res_pool->free_count <= 0 ||
218 res_pool->free_count > res_pool->max_count)
219 goto out_unlock;
220
221 list_del_init(&resource->node);
222
223 res_pool->free_count--;
224 error = 0;
225 out_unlock:
226 mutex_unlock(&res_pool->mutex);
227 *new_resource = resource;
228 out:
229 return error;
230 }
231 EXPORT_SYMBOL_GPL(fsl_mc_resource_allocate);
232
fsl_mc_resource_free(struct fsl_mc_resource * resource)233 void fsl_mc_resource_free(struct fsl_mc_resource *resource)
234 {
235 struct fsl_mc_resource_pool *res_pool;
236
237 res_pool = resource->parent_pool;
238 if (resource->type != res_pool->type)
239 return;
240
241 mutex_lock(&res_pool->mutex);
242 if (res_pool->free_count < 0 ||
243 res_pool->free_count >= res_pool->max_count)
244 goto out_unlock;
245
246 if (!list_empty(&resource->node))
247 goto out_unlock;
248
249 list_add_tail(&resource->node, &res_pool->free_list);
250 res_pool->free_count++;
251 out_unlock:
252 mutex_unlock(&res_pool->mutex);
253 }
254 EXPORT_SYMBOL_GPL(fsl_mc_resource_free);
255
256 /**
257 * fsl_mc_object_allocate - Allocates an fsl-mc object of the given
258 * pool type from a given fsl-mc bus instance
259 *
260 * @mc_dev: fsl-mc device which is used in conjunction with the
261 * allocated object
262 * @pool_type: pool type
263 * @new_mc_adev: pointer to area where the pointer to the allocated device
264 * is to be returned
265 *
266 * Allocatable objects are always used in conjunction with some functional
267 * device. This function allocates an object of the specified type from
268 * the DPRC containing the functional device.
269 *
270 * NOTE: pool_type must be different from FSL_MC_POOL_MCP, since MC
271 * portals are allocated using fsl_mc_portal_allocate(), instead of
272 * this function.
273 */
fsl_mc_object_allocate(struct fsl_mc_device * mc_dev,enum fsl_mc_pool_type pool_type,struct fsl_mc_device ** new_mc_adev)274 int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev,
275 enum fsl_mc_pool_type pool_type,
276 struct fsl_mc_device **new_mc_adev)
277 {
278 struct fsl_mc_device *mc_bus_dev;
279 struct fsl_mc_bus *mc_bus;
280 struct fsl_mc_device *mc_adev;
281 int error = -EINVAL;
282 struct fsl_mc_resource *resource = NULL;
283
284 *new_mc_adev = NULL;
285 if (mc_dev->flags & FSL_MC_IS_DPRC)
286 goto error;
287
288 if (!dev_is_fsl_mc(mc_dev->dev.parent))
289 goto error;
290
291 if (pool_type == FSL_MC_POOL_DPMCP)
292 goto error;
293
294 mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
295 mc_bus = to_fsl_mc_bus(mc_bus_dev);
296 error = fsl_mc_resource_allocate(mc_bus, pool_type, &resource);
297 if (error < 0)
298 goto error;
299
300 mc_adev = resource->data;
301 if (!mc_adev) {
302 error = -EINVAL;
303 goto error;
304 }
305
306 mc_adev->consumer_link = device_link_add(&mc_dev->dev,
307 &mc_adev->dev,
308 DL_FLAG_AUTOREMOVE_CONSUMER);
309 if (!mc_adev->consumer_link) {
310 error = -EINVAL;
311 goto error;
312 }
313
314 *new_mc_adev = mc_adev;
315 return 0;
316 error:
317 if (resource)
318 fsl_mc_resource_free(resource);
319
320 return error;
321 }
322 EXPORT_SYMBOL_GPL(fsl_mc_object_allocate);
323
324 /**
325 * fsl_mc_object_free - Returns an fsl-mc object to the resource
326 * pool where it came from.
327 * @mc_adev: Pointer to the fsl-mc device
328 */
fsl_mc_object_free(struct fsl_mc_device * mc_adev)329 void fsl_mc_object_free(struct fsl_mc_device *mc_adev)
330 {
331 struct fsl_mc_resource *resource;
332
333 resource = mc_adev->resource;
334 if (resource->type == FSL_MC_POOL_DPMCP)
335 return;
336 if (resource->data != mc_adev)
337 return;
338
339 fsl_mc_resource_free(resource);
340
341 mc_adev->consumer_link = NULL;
342 }
343 EXPORT_SYMBOL_GPL(fsl_mc_object_free);
344
345 /*
346 * A DPRC and the devices in the DPRC all share the same GIC-ITS device
347 * ID. A block of IRQs is pre-allocated and maintained in a pool
348 * from which devices can allocate them when needed.
349 */
350
351 /*
352 * Initialize the interrupt pool associated with an fsl-mc bus.
353 * It allocates a block of IRQs from the GIC-ITS.
354 */
fsl_mc_populate_irq_pool(struct fsl_mc_device * mc_bus_dev,unsigned int irq_count)355 int fsl_mc_populate_irq_pool(struct fsl_mc_device *mc_bus_dev,
356 unsigned int irq_count)
357 {
358 unsigned int i;
359 struct fsl_mc_device_irq *irq_resources;
360 struct fsl_mc_device_irq *mc_dev_irq;
361 int error;
362 struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
363 struct fsl_mc_resource_pool *res_pool =
364 &mc_bus->resource_pools[FSL_MC_POOL_IRQ];
365
366 /* do nothing if the IRQ pool is already populated */
367 if (mc_bus->irq_resources)
368 return 0;
369
370 if (irq_count == 0 ||
371 irq_count > FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS)
372 return -EINVAL;
373
374 error = fsl_mc_msi_domain_alloc_irqs(&mc_bus_dev->dev, irq_count);
375 if (error < 0)
376 return error;
377
378 irq_resources = devm_kcalloc(&mc_bus_dev->dev,
379 irq_count, sizeof(*irq_resources),
380 GFP_KERNEL);
381 if (!irq_resources) {
382 error = -ENOMEM;
383 goto cleanup_msi_irqs;
384 }
385
386 for (i = 0; i < irq_count; i++) {
387 mc_dev_irq = &irq_resources[i];
388
389 /*
390 * NOTE: This mc_dev_irq's MSI addr/value pair will be set
391 * by the fsl_mc_msi_write_msg() callback
392 */
393 mc_dev_irq->resource.type = res_pool->type;
394 mc_dev_irq->resource.data = mc_dev_irq;
395 mc_dev_irq->resource.parent_pool = res_pool;
396 mc_dev_irq->virq = msi_get_virq(&mc_bus_dev->dev, i);
397 mc_dev_irq->resource.id = mc_dev_irq->virq;
398 INIT_LIST_HEAD(&mc_dev_irq->resource.node);
399 list_add_tail(&mc_dev_irq->resource.node, &res_pool->free_list);
400 }
401
402 res_pool->max_count = irq_count;
403 res_pool->free_count = irq_count;
404 mc_bus->irq_resources = irq_resources;
405 return 0;
406
407 cleanup_msi_irqs:
408 fsl_mc_msi_domain_free_irqs(&mc_bus_dev->dev);
409 return error;
410 }
411 EXPORT_SYMBOL_GPL(fsl_mc_populate_irq_pool);
412
413 /*
414 * Teardown the interrupt pool associated with an fsl-mc bus.
415 * It frees the IRQs that were allocated to the pool, back to the GIC-ITS.
416 */
fsl_mc_cleanup_irq_pool(struct fsl_mc_device * mc_bus_dev)417 void fsl_mc_cleanup_irq_pool(struct fsl_mc_device *mc_bus_dev)
418 {
419 struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
420 struct fsl_mc_resource_pool *res_pool =
421 &mc_bus->resource_pools[FSL_MC_POOL_IRQ];
422
423 if (!mc_bus->irq_resources)
424 return;
425
426 if (res_pool->max_count == 0)
427 return;
428
429 if (res_pool->free_count != res_pool->max_count)
430 return;
431
432 INIT_LIST_HEAD(&res_pool->free_list);
433 res_pool->max_count = 0;
434 res_pool->free_count = 0;
435 mc_bus->irq_resources = NULL;
436 fsl_mc_msi_domain_free_irqs(&mc_bus_dev->dev);
437 }
438 EXPORT_SYMBOL_GPL(fsl_mc_cleanup_irq_pool);
439
440 /*
441 * Allocate the IRQs required by a given fsl-mc device.
442 */
fsl_mc_allocate_irqs(struct fsl_mc_device * mc_dev)443 int __must_check fsl_mc_allocate_irqs(struct fsl_mc_device *mc_dev)
444 {
445 int i;
446 int irq_count;
447 int res_allocated_count = 0;
448 int error = -EINVAL;
449 struct fsl_mc_device_irq **irqs = NULL;
450 struct fsl_mc_bus *mc_bus;
451 struct fsl_mc_resource_pool *res_pool;
452
453 if (mc_dev->irqs)
454 return -EINVAL;
455
456 irq_count = mc_dev->obj_desc.irq_count;
457 if (irq_count == 0)
458 return -EINVAL;
459
460 if (is_fsl_mc_bus_dprc(mc_dev))
461 mc_bus = to_fsl_mc_bus(mc_dev);
462 else
463 mc_bus = to_fsl_mc_bus(to_fsl_mc_device(mc_dev->dev.parent));
464
465 if (!mc_bus->irq_resources)
466 return -EINVAL;
467
468 res_pool = &mc_bus->resource_pools[FSL_MC_POOL_IRQ];
469 if (res_pool->free_count < irq_count) {
470 dev_err(&mc_dev->dev,
471 "Not able to allocate %u irqs for device\n", irq_count);
472 return -ENOSPC;
473 }
474
475 irqs = devm_kcalloc(&mc_dev->dev, irq_count, sizeof(irqs[0]),
476 GFP_KERNEL);
477 if (!irqs)
478 return -ENOMEM;
479
480 for (i = 0; i < irq_count; i++) {
481 struct fsl_mc_resource *resource;
482
483 error = fsl_mc_resource_allocate(mc_bus, FSL_MC_POOL_IRQ,
484 &resource);
485 if (error < 0)
486 goto error_resource_alloc;
487
488 irqs[i] = to_fsl_mc_irq(resource);
489 res_allocated_count++;
490
491 irqs[i]->mc_dev = mc_dev;
492 irqs[i]->dev_irq_index = i;
493 }
494
495 mc_dev->irqs = irqs;
496 return 0;
497
498 error_resource_alloc:
499 for (i = 0; i < res_allocated_count; i++) {
500 irqs[i]->mc_dev = NULL;
501 fsl_mc_resource_free(&irqs[i]->resource);
502 }
503
504 return error;
505 }
506 EXPORT_SYMBOL_GPL(fsl_mc_allocate_irqs);
507
508 /*
509 * Frees the IRQs that were allocated for an fsl-mc device.
510 */
fsl_mc_free_irqs(struct fsl_mc_device * mc_dev)511 void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev)
512 {
513 int i;
514 int irq_count;
515 struct fsl_mc_bus *mc_bus;
516 struct fsl_mc_device_irq **irqs = mc_dev->irqs;
517
518 if (!irqs)
519 return;
520
521 irq_count = mc_dev->obj_desc.irq_count;
522
523 if (is_fsl_mc_bus_dprc(mc_dev))
524 mc_bus = to_fsl_mc_bus(mc_dev);
525 else
526 mc_bus = to_fsl_mc_bus(to_fsl_mc_device(mc_dev->dev.parent));
527
528 if (!mc_bus->irq_resources)
529 return;
530
531 for (i = 0; i < irq_count; i++) {
532 irqs[i]->mc_dev = NULL;
533 fsl_mc_resource_free(&irqs[i]->resource);
534 }
535
536 mc_dev->irqs = NULL;
537 }
538 EXPORT_SYMBOL_GPL(fsl_mc_free_irqs);
539
fsl_mc_init_all_resource_pools(struct fsl_mc_device * mc_bus_dev)540 void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev)
541 {
542 int pool_type;
543 struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
544
545 for (pool_type = 0; pool_type < FSL_MC_NUM_POOL_TYPES; pool_type++) {
546 struct fsl_mc_resource_pool *res_pool =
547 &mc_bus->resource_pools[pool_type];
548
549 res_pool->type = pool_type;
550 res_pool->max_count = 0;
551 res_pool->free_count = 0;
552 res_pool->mc_bus = mc_bus;
553 INIT_LIST_HEAD(&res_pool->free_list);
554 mutex_init(&res_pool->mutex);
555 }
556 }
557
fsl_mc_cleanup_resource_pool(struct fsl_mc_device * mc_bus_dev,enum fsl_mc_pool_type pool_type)558 static void fsl_mc_cleanup_resource_pool(struct fsl_mc_device *mc_bus_dev,
559 enum fsl_mc_pool_type pool_type)
560 {
561 struct fsl_mc_resource *resource;
562 struct fsl_mc_resource *next;
563 struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
564 struct fsl_mc_resource_pool *res_pool =
565 &mc_bus->resource_pools[pool_type];
566
567 list_for_each_entry_safe(resource, next, &res_pool->free_list, node)
568 devm_kfree(&mc_bus_dev->dev, resource);
569 }
570
fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device * mc_bus_dev)571 void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev)
572 {
573 int pool_type;
574
575 for (pool_type = 0; pool_type < FSL_MC_NUM_POOL_TYPES; pool_type++)
576 fsl_mc_cleanup_resource_pool(mc_bus_dev, pool_type);
577 }
578
579 /*
580 * fsl_mc_allocator_probe - callback invoked when an allocatable device is
581 * being added to the system
582 */
fsl_mc_allocator_probe(struct fsl_mc_device * mc_dev)583 static int fsl_mc_allocator_probe(struct fsl_mc_device *mc_dev)
584 {
585 enum fsl_mc_pool_type pool_type;
586 struct fsl_mc_device *mc_bus_dev;
587 struct fsl_mc_bus *mc_bus;
588 int error;
589
590 if (!fsl_mc_is_allocatable(mc_dev))
591 return -EINVAL;
592
593 mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
594 if (!dev_is_fsl_mc(&mc_bus_dev->dev))
595 return -EINVAL;
596
597 mc_bus = to_fsl_mc_bus(mc_bus_dev);
598 error = object_type_to_pool_type(mc_dev->obj_desc.type, &pool_type);
599 if (error < 0)
600 return error;
601
602 error = fsl_mc_resource_pool_add_device(mc_bus, pool_type, mc_dev);
603 if (error < 0)
604 return error;
605
606 dev_dbg(&mc_dev->dev,
607 "Allocatable fsl-mc device bound to fsl_mc_allocator driver");
608 return 0;
609 }
610
611 /*
612 * fsl_mc_allocator_remove - callback invoked when an allocatable device is
613 * being removed from the system
614 */
fsl_mc_allocator_remove(struct fsl_mc_device * mc_dev)615 static void fsl_mc_allocator_remove(struct fsl_mc_device *mc_dev)
616 {
617 int error;
618
619 if (mc_dev->resource) {
620 error = fsl_mc_resource_pool_remove_device(mc_dev);
621 if (error < 0)
622 return;
623 }
624
625 dev_dbg(&mc_dev->dev,
626 "Allocatable fsl-mc device unbound from fsl_mc_allocator driver");
627 }
628
629 static const struct fsl_mc_device_id match_id_table[] = {
630 {
631 .vendor = FSL_MC_VENDOR_FREESCALE,
632 .obj_type = "dpbp",
633 },
634 {
635 .vendor = FSL_MC_VENDOR_FREESCALE,
636 .obj_type = "dpmcp",
637 },
638 {
639 .vendor = FSL_MC_VENDOR_FREESCALE,
640 .obj_type = "dpcon",
641 },
642 {.vendor = 0x0},
643 };
644
645 static struct fsl_mc_driver fsl_mc_allocator_driver = {
646 .driver = {
647 .name = "fsl_mc_allocator",
648 .pm = NULL,
649 },
650 .match_id_table = match_id_table,
651 .probe = fsl_mc_allocator_probe,
652 .remove = fsl_mc_allocator_remove,
653 };
654
fsl_mc_allocator_driver_init(void)655 int __init fsl_mc_allocator_driver_init(void)
656 {
657 return fsl_mc_driver_register(&fsl_mc_allocator_driver);
658 }
659