3  * Tegra host1x Channel
11 #include "channel.h"
41 	struct host1x *host = dev_get_drvdata(job->channel->dev->parent);  in host1x_job_submit()
47 struct host1x_channel *host1x_channel_get(struct host1x_channel *channel)  in host1x_channel_get()  argument
49 	kref_get(&channel->refcount);  in host1x_channel_get()
51 	return channel;  in host1x_channel_get()
56  * host1x_channel_get_index() - Attempt to get channel reference by index
58  * @index: Index of channel
60  * If channel number @index is currently allocated, increase its refcount
74 void host1x_channel_stop(struct host1x_channel *channel)  in host1x_channel_stop()  argument
76 	struct host1x *host = dev_get_drvdata(channel->dev->parent);  in host1x_channel_stop()
78 	host1x_hw_cdma_stop(host, &channel->cdma);  in host1x_channel_stop()
84 	struct host1x_channel *channel =  in release_channel()  local
86 	struct host1x *host = dev_get_drvdata(channel->dev->parent);  in release_channel()
89 	host1x_hw_cdma_stop(host, &channel->cdma);  in release_channel()
90 	host1x_cdma_deinit(&channel->cdma);  in release_channel()
92 	clear_bit(channel->id, chlist->allocated_channels);  in release_channel()
95 void host1x_channel_put(struct host1x_channel *channel)  in host1x_channel_put()  argument
97 	kref_put(&channel->refcount, release_channel);  in host1x_channel_put()
109 		dev_err(host->dev, "failed to find free channel\n");  in acquire_unused_channel()
121  * host1x_channel_request() - Allocate a channel
122  * @client: Host1x client this channel will be used to send commands to
124  * Allocates a new host1x channel for @client. May return NULL if CDMA
131 	struct host1x_channel *channel;  in host1x_channel_request()  local
134 	channel = acquire_unused_channel(host);  in host1x_channel_request()
135 	if (!channel)  in host1x_channel_request()
138 	kref_init(&channel->refcount);  in host1x_channel_request()
139 	mutex_init(&channel->submitlock);  in host1x_channel_request()
140 	channel->client = client;  in host1x_channel_request()
141 	channel->dev = client->dev;  in host1x_channel_request()
143 	err = host1x_hw_channel_init(host, channel, channel->id);  in host1x_channel_request()
147 	err = host1x_cdma_init(&channel->cdma);  in host1x_channel_request()
151 	return channel;  in host1x_channel_request()
154 	clear_bit(channel->id, chlist->allocated_channels);  in host1x_channel_request()
156 	dev_err(client->dev, "failed to initialize channel\n");  in host1x_channel_request()