| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * Tegra host1x Channel |
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| 4 | * |
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| 5 | * Copyright (c) 2010-2013, NVIDIA Corporation. |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef __HOST1X_CHANNEL_H |
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| 9 | #define __HOST1X_CHANNEL_H |
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| 10 | |
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| 11 | #include <linux/io.h> |
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| 12 | #include <linux/kref.h> |
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| 13 | #include <linux/mutex.h> |
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| 14 | |
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| 15 | #include "cdma.h" |
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| 16 | |
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| 17 | struct host1x; |
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| 18 | struct host1x_channel; |
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| 19 | |
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| 20 | struct host1x_channel_list { |
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| 21 | struct host1x_channel *channels; |
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| 22 | |
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| 23 | struct mutex lock; |
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| 24 | unsigned long *allocated_channels; |
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| 25 | }; |
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| 26 | |
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| 27 | struct host1x_channel { |
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| 28 | struct kref refcount; |
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| 29 | unsigned int id; |
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| 30 | struct mutex submitlock; |
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| 31 | void __iomem *regs; |
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| 32 | struct host1x_client *client; |
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| 33 | struct device *dev; |
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| 34 | struct host1x_cdma cdma; |
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| 35 | }; |
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| 36 | |
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| 37 | /* channel list operations */ |
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| 38 | int host1x_channel_list_init(struct host1x_channel_list *chlist, |
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| 39 | unsigned int num_channels); |
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| 40 | void host1x_channel_list_free(struct host1x_channel_list *chlist); |
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| 41 | struct host1x_channel *host1x_channel_get_index(struct host1x *host, |
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| 42 | unsigned int index); |
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| 43 | void host1x_channel_stop_all(struct host1x *host); |
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| 44 | |
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| 45 | #endif |
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| 46 | |
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