From 6579324a41cc414009a601738b70a53d6376325c Mon Sep 17 00:00:00 2001 From: Terje Bergstrom Date: Fri, 22 Mar 2013 16:34:03 +0200 Subject: gpu: host1x: Add channel support Add support for host1x client modules, and host1x channels to submit work to the clients. Signed-off-by: Arto Merilainen Signed-off-by: Terje Bergstrom Reviewed-by: Thierry Reding Tested-by: Thierry Reding Tested-by: Erik Faye-Lund Signed-off-by: Thierry Reding --- drivers/gpu/host1x/channel.h | 52 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 drivers/gpu/host1x/channel.h (limited to 'drivers/gpu/host1x/channel.h') diff --git a/drivers/gpu/host1x/channel.h b/drivers/gpu/host1x/channel.h new file mode 100644 index 000000000000..48723b8eea42 --- /dev/null +++ b/drivers/gpu/host1x/channel.h @@ -0,0 +1,52 @@ +/* + * 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 . + */ + +#ifndef __HOST1X_CHANNEL_H +#define __HOST1X_CHANNEL_H + +#include + +#include "cdma.h" + +struct host1x; + +struct host1x_channel { + struct list_head list; + + unsigned int refcount; + unsigned int id; + struct mutex reflock; + struct mutex submitlock; + void __iomem *regs; + 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) + +#endif -- cgit v1.2.3