3  * Tegra host1x Channel
11 #include "channel.h"
43 	struct host1x *host = dev_get_drvdata(job->channel->dev->parent);  in host1x_job_submit()
49 struct host1x_channel *host1x_channel_get(struct host1x_channel *channel)  in host1x_channel_get()  argument
51 	kref_get(&channel->refcount);  in host1x_channel_get()
53 	return channel;  in host1x_channel_get()
58  * host1x_channel_get_index() - Attempt to get channel reference by index
60  * @index: Index of channel
62  * If channel number @index is currently allocated, increase its refcount
76 void host1x_channel_stop(struct host1x_channel *channel)  in host1x_channel_stop()  argument
78 	struct host1x *host = dev_get_drvdata(channel->dev->parent);  in host1x_channel_stop()
80 	host1x_hw_cdma_stop(host, &channel->cdma);  in host1x_channel_stop()
105 	struct host1x_channel *channel =  in release_channel()  local
107 	struct host1x *host = dev_get_drvdata(channel->dev->parent);  in release_channel()
110 	host1x_hw_cdma_stop(host, &channel->cdma);  in release_channel()
111 	host1x_cdma_deinit(&channel->cdma);  in release_channel()
113 	clear_bit(channel->id, chlist->allocated_channels);  in release_channel()
116 void host1x_channel_put(struct host1x_channel *channel)  in host1x_channel_put()  argument
118 	kref_put(&channel->refcount, release_channel);  in host1x_channel_put()
133 		dev_err(host->dev, "failed to find free channel\n");  in acquire_unused_channel()
147  * host1x_channel_request() - Allocate a channel
148  * @client: Host1x client this channel will be used to send commands to
150  * Allocates a new host1x channel for @client. May return NULL if CDMA
157 	struct host1x_channel *channel;  in host1x_channel_request()  local
160 	channel = acquire_unused_channel(host);  in host1x_channel_request()
161 	if (!channel)  in host1x_channel_request()
164 	kref_init(&channel->refcount);  in host1x_channel_request()
165 	mutex_init(&channel->submitlock);  in host1x_channel_request()
166 	channel->client = client;  in host1x_channel_request()
167 	channel->dev = client->dev;  in host1x_channel_request()
169 	err = host1x_hw_channel_init(host, channel, channel->id);  in host1x_channel_request()
173 	err = host1x_cdma_init(&channel->cdma);  in host1x_channel_request()
177 	return channel;  in host1x_channel_request()
180 	clear_bit(channel->id, chlist->allocated_channels);  in host1x_channel_request()
182 	dev_err(client->dev, "failed to initialize channel\n");  in host1x_channel_request()