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6579324a TB |
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> | |
8474b025 | 23 | #include <linux/kref.h> |
6579324a TB |
24 | |
25 | #include "cdma.h" | |
26 | ||
27 | struct host1x; | |
8474b025 | 28 | struct host1x_channel; |
6579324a | 29 | |
8474b025 MP |
30 | struct host1x_channel_list { |
31 | struct host1x_channel *channels; | |
32 | unsigned long *allocated_channels; | |
33 | }; | |
6579324a | 34 | |
8474b025 MP |
35 | struct host1x_channel { |
36 | struct kref refcount; | |
6579324a | 37 | unsigned int id; |
6579324a TB |
38 | struct mutex submitlock; |
39 | void __iomem *regs; | |
40 | struct device *dev; | |
41 | struct host1x_cdma cdma; | |
42 | }; | |
43 | ||
44 | /* channel list operations */ | |
8474b025 MP |
45 | int host1x_channel_list_init(struct host1x_channel_list *chlist, |
46 | unsigned int num_channels); | |
47 | void host1x_channel_list_free(struct host1x_channel_list *chlist); | |
48 | struct host1x_channel *host1x_channel_get_index(struct host1x *host, | |
49 | unsigned int index); | |
6579324a TB |
50 | |
51 | #endif |