30 	struct spu_gang *gang;  in alloc_spu_gang()  local
32 	gang = kzalloc(sizeof *gang, GFP_KERNEL);  in alloc_spu_gang()
33 	if (!gang)  in alloc_spu_gang()
36 	kref_init(&gang->kref);  in alloc_spu_gang()
37 	mutex_init(&gang->mutex);  in alloc_spu_gang()
38 	mutex_init(&gang->aff_mutex);  in alloc_spu_gang()
39 	INIT_LIST_HEAD(&gang->list);  in alloc_spu_gang()
40 	INIT_LIST_HEAD(&gang->aff_list_head);  in alloc_spu_gang()
43 	return gang;  in alloc_spu_gang()
48 	struct spu_gang *gang;  in destroy_spu_gang()  local
49 	gang = container_of(kref, struct spu_gang, kref);  in destroy_spu_gang()
50 	WARN_ON(gang->contexts || !list_empty(&gang->list));  in destroy_spu_gang()
51 	kfree(gang);  in destroy_spu_gang()
54 struct spu_gang *get_spu_gang(struct spu_gang *gang)  in get_spu_gang()  argument
56 	kref_get(&gang->kref);  in get_spu_gang()
57 	return gang;  in get_spu_gang()
60 int put_spu_gang(struct spu_gang *gang)  in put_spu_gang()  argument
62 	return kref_put(&gang->kref, &destroy_spu_gang);  in put_spu_gang()
65 void spu_gang_add_ctx(struct spu_gang *gang, struct spu_context *ctx)  in spu_gang_add_ctx()  argument
67 	mutex_lock(&gang->mutex);  in spu_gang_add_ctx()
68 	ctx->gang = get_spu_gang(gang);  in spu_gang_add_ctx()
69 	list_add(&ctx->gang_list, &gang->list);  in spu_gang_add_ctx()
70 	gang->contexts++;  in spu_gang_add_ctx()
71 	mutex_unlock(&gang->mutex);  in spu_gang_add_ctx()
74 void spu_gang_remove_ctx(struct spu_gang *gang, struct spu_context *ctx)  in spu_gang_remove_ctx()  argument
76 	mutex_lock(&gang->mutex);  in spu_gang_remove_ctx()
77 	WARN_ON(ctx->gang != gang);  in spu_gang_remove_ctx()
80 		gang->aff_flags &= ~AFF_OFFSETS_SET;  in spu_gang_remove_ctx()
83 	gang->contexts--;  in spu_gang_remove_ctx()
84 	mutex_unlock(&gang->mutex);  in spu_gang_remove_ctx()
86 	put_spu_gang(gang);  in spu_gang_remove_ctx()