17 	struct spu_gang *gang;  in alloc_spu_gang()  local
19 	gang = kzalloc(sizeof *gang, GFP_KERNEL);  in alloc_spu_gang()
20 	if (!gang)  in alloc_spu_gang()
23 	kref_init(&gang->kref);  in alloc_spu_gang()
24 	mutex_init(&gang->mutex);  in alloc_spu_gang()
25 	mutex_init(&gang->aff_mutex);  in alloc_spu_gang()
26 	INIT_LIST_HEAD(&gang->list);  in alloc_spu_gang()
27 	INIT_LIST_HEAD(&gang->aff_list_head);  in alloc_spu_gang()
28 	gang->alive = 1;  in alloc_spu_gang()
31 	return gang;  in alloc_spu_gang()
36 	struct spu_gang *gang;  in destroy_spu_gang()  local
37 	gang = container_of(kref, struct spu_gang, kref);  in destroy_spu_gang()
38 	WARN_ON(gang->contexts || !list_empty(&gang->list));  in destroy_spu_gang()
39 	kfree(gang);  in destroy_spu_gang()
42 struct spu_gang *get_spu_gang(struct spu_gang *gang)  in get_spu_gang()  argument
44 	kref_get(&gang->kref);  in get_spu_gang()
45 	return gang;  in get_spu_gang()
48 int put_spu_gang(struct spu_gang *gang)  in put_spu_gang()  argument
50 	return kref_put(&gang->kref, &destroy_spu_gang);  in put_spu_gang()
53 void spu_gang_add_ctx(struct spu_gang *gang, struct spu_context *ctx)  in spu_gang_add_ctx()  argument
55 	mutex_lock(&gang->mutex);  in spu_gang_add_ctx()
56 	ctx->gang = get_spu_gang(gang);  in spu_gang_add_ctx()
57 	list_add(&ctx->gang_list, &gang->list);  in spu_gang_add_ctx()
58 	gang->contexts++;  in spu_gang_add_ctx()
59 	mutex_unlock(&gang->mutex);  in spu_gang_add_ctx()
62 void spu_gang_remove_ctx(struct spu_gang *gang, struct spu_context *ctx)  in spu_gang_remove_ctx()  argument
64 	mutex_lock(&gang->mutex);  in spu_gang_remove_ctx()
65 	WARN_ON(ctx->gang != gang);  in spu_gang_remove_ctx()
68 		gang->aff_flags &= ~AFF_OFFSETS_SET;  in spu_gang_remove_ctx()
71 	gang->contexts--;  in spu_gang_remove_ctx()
72 	mutex_unlock(&gang->mutex);  in spu_gang_remove_ctx()
74 	put_spu_gang(gang);  in spu_gang_remove_ctx()