diff options
Diffstat (limited to 'drivers/gpu/host1x/channel.h')
| -rw-r--r-- | drivers/gpu/host1x/channel.h | 45 |
1 files changed, 19 insertions, 26 deletions
diff --git a/drivers/gpu/host1x/channel.h b/drivers/gpu/host1x/channel.h index 48723b8eea42..d7aede204d83 100644 --- a/drivers/gpu/host1x/channel.h +++ b/drivers/gpu/host1x/channel.h @@ -1,52 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Tegra host1x Channel * * Copyright (c) 2010-2013, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef __HOST1X_CHANNEL_H #define __HOST1X_CHANNEL_H #include <linux/io.h> +#include <linux/kref.h> +#include <linux/mutex.h> #include "cdma.h" struct host1x; +struct host1x_channel; -struct host1x_channel { - struct list_head list; +struct host1x_channel_list { + struct host1x_channel *channels; - unsigned int refcount; + struct mutex lock; + unsigned long *allocated_channels; +}; + +struct host1x_channel { + struct kref refcount; unsigned int id; - struct mutex reflock; struct mutex submitlock; void __iomem *regs; + struct host1x_client *client; struct device *dev; struct host1x_cdma cdma; }; /* channel list operations */ -int host1x_channel_list_init(struct host1x *host); - -struct host1x_channel *host1x_channel_request(struct device *dev); -void host1x_channel_free(struct host1x_channel *channel); -struct host1x_channel *host1x_channel_get(struct host1x_channel *channel); -void host1x_channel_put(struct host1x_channel *channel); -int host1x_job_submit(struct host1x_job *job); - -#define host1x_for_each_channel(host, channel) \ - list_for_each_entry(channel, &host->chlist.list, list) +int host1x_channel_list_init(struct host1x_channel_list *chlist, + unsigned int num_channels); +void host1x_channel_list_free(struct host1x_channel_list *chlist); +struct host1x_channel *host1x_channel_get_index(struct host1x *host, + unsigned int index); +void host1x_channel_stop_all(struct host1x *host); #endif |