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()
30 	return gang;  in alloc_spu_gang()
35 	struct spu_gang *gang;  in destroy_spu_gang()  local
36 	gang = container_of(kref, struct spu_gang, kref);  in destroy_spu_gang()
37 	WARN_ON(gang->contexts || !list_empty(&gang->list));  in destroy_spu_gang()
38 	kfree(gang);  in destroy_spu_gang()
41 struct spu_gang *get_spu_gang(struct spu_gang *gang)  in get_spu_gang()  argument
43 	kref_get(&gang->kref);  in get_spu_gang()
44 	return gang;  in get_spu_gang()
47 int put_spu_gang(struct spu_gang *gang)  in put_spu_gang()  argument
49 	return kref_put(&gang->kref, &destroy_spu_gang);  in put_spu_gang()
52 void spu_gang_add_ctx(struct spu_gang *gang, struct spu_context *ctx)  in spu_gang_add_ctx()  argument
54 	mutex_lock(&gang->mutex);  in spu_gang_add_ctx()
55 	ctx->gang = get_spu_gang(gang);  in spu_gang_add_ctx()
56 	list_add(&ctx->gang_list, &gang->list);  in spu_gang_add_ctx()
57 	gang->contexts++;  in spu_gang_add_ctx()
58 	mutex_unlock(&gang->mutex);  in spu_gang_add_ctx()
61 void spu_gang_remove_ctx(struct spu_gang *gang, struct spu_context *ctx)  in spu_gang_remove_ctx()  argument
63 	mutex_lock(&gang->mutex);  in spu_gang_remove_ctx()
64 	WARN_ON(ctx->gang != gang);  in spu_gang_remove_ctx()
67 		gang->aff_flags &= ~AFF_OFFSETS_SET;  in spu_gang_remove_ctx()
70 	gang->contexts--;  in spu_gang_remove_ctx()
71 	mutex_unlock(&gang->mutex);  in spu_gang_remove_ctx()
73 	put_spu_gang(gang);  in spu_gang_remove_ctx()