43 int c2_pd_alloc(struct c2_dev *c2dev, int privileged, struct c2_pd *pd)  in c2_pd_alloc()  argument
48 	spin_lock(&c2dev->pd_table.lock);  in c2_pd_alloc()
49 	obj = find_next_zero_bit(c2dev->pd_table.table, c2dev->pd_table.max,  in c2_pd_alloc()
50 				 c2dev->pd_table.last);  in c2_pd_alloc()
51 	if (obj >= c2dev->pd_table.max)  in c2_pd_alloc()
52 		obj = find_first_zero_bit(c2dev->pd_table.table,  in c2_pd_alloc()
53 					  c2dev->pd_table.max);  in c2_pd_alloc()
54 	if (obj < c2dev->pd_table.max) {  in c2_pd_alloc()
56 		__set_bit(obj, c2dev->pd_table.table);  in c2_pd_alloc()
57 		c2dev->pd_table.last = obj+1;  in c2_pd_alloc()
58 		if (c2dev->pd_table.last >= c2dev->pd_table.max)  in c2_pd_alloc()
59 			c2dev->pd_table.last = 0;  in c2_pd_alloc()
62 	spin_unlock(&c2dev->pd_table.lock);  in c2_pd_alloc()
66 void c2_pd_free(struct c2_dev *c2dev, struct c2_pd *pd)  in c2_pd_free()  argument
68 	spin_lock(&c2dev->pd_table.lock);  in c2_pd_free()
69 	__clear_bit(pd->pd_id, c2dev->pd_table.table);  in c2_pd_free()
70 	spin_unlock(&c2dev->pd_table.lock);  in c2_pd_free()
73 int c2_init_pd_table(struct c2_dev *c2dev)  in c2_init_pd_table()  argument
76 	c2dev->pd_table.last = 0;  in c2_init_pd_table()
77 	c2dev->pd_table.max = c2dev->props.max_pd;  in c2_init_pd_table()
78 	spin_lock_init(&c2dev->pd_table.lock);  in c2_init_pd_table()
79 	c2dev->pd_table.table = kmalloc(BITS_TO_LONGS(c2dev->props.max_pd) *  in c2_init_pd_table()
81 	if (!c2dev->pd_table.table)  in c2_init_pd_table()
83 	bitmap_zero(c2dev->pd_table.table, c2dev->props.max_pd);  in c2_init_pd_table()
87 void c2_cleanup_pd_table(struct c2_dev *c2dev)  in c2_cleanup_pd_table()  argument
89 	kfree(c2dev->pd_table.table);  in c2_cleanup_pd_table()