xref: /openbmc/linux/drivers/gpu/host1x/channel.h (revision bc5aa3a0)
1 /*
2  * Tegra host1x Channel
3  *
4  * Copyright (c) 2010-2013, NVIDIA Corporation.
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms and conditions of the GNU General Public License,
8  * version 2, as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13  * more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 #ifndef __HOST1X_CHANNEL_H
20 #define __HOST1X_CHANNEL_H
21 
22 #include <linux/io.h>
23 
24 #include "cdma.h"
25 
26 struct host1x;
27 
28 struct host1x_channel {
29 	struct list_head list;
30 
31 	unsigned int refcount;
32 	unsigned int id;
33 	struct mutex reflock;
34 	struct mutex submitlock;
35 	void __iomem *regs;
36 	struct device *dev;
37 	struct host1x_cdma cdma;
38 };
39 
40 /* channel list operations */
41 int host1x_channel_list_init(struct host1x *host);
42 
43 #define host1x_for_each_channel(host, channel)				\
44 	list_for_each_entry(channel, &host->chlist.list, list)
45 
46 #endif
47