channel.h (e5451c8f8330e03ad3cfa16048b4daf961af434f) channel.h (8474b02531c4881a762c52ef869c52429e38633f)
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.

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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>
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.

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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#include <linux/kref.h>
23
24#include "cdma.h"
25
26struct host1x;
24
25#include "cdma.h"
26
27struct host1x;
28struct host1x_channel;
27
29
28struct host1x_channel {
29 struct list_head list;
30struct host1x_channel_list {
31 struct host1x_channel *channels;
32 unsigned long *allocated_channels;
33};
30
34
31 unsigned int refcount;
35struct host1x_channel {
36 struct kref refcount;
32 unsigned int id;
37 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 */
38 struct mutex submitlock;
39 void __iomem *regs;
40 struct device *dev;
41 struct host1x_cdma cdma;
42};
43
44/* channel list operations */
41int host1x_channel_list_init(struct host1x *host);
45int host1x_channel_list_init(struct host1x_channel_list *chlist,
46 unsigned int num_channels);
47void host1x_channel_list_free(struct host1x_channel_list *chlist);
48struct host1x_channel *host1x_channel_get_index(struct host1x *host,
49 unsigned int index);
42
50
43#define host1x_for_each_channel(host, channel) \
44 list_for_each_entry(channel, &host->chlist.list, list)
45
46#endif
51#endif