drivers/gpu/host1x/channel.h

   1 /*
   2  * Tegra host1x Channel
   3  *
   4  * Copyright (c) 2010-2013, NVIDIA Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef __HOST1X_CHANNEL_H
  20 #define __HOST1X_CHANNEL_H
  21
  22 #include <linux/io.h>
  23
  24 #include "cdma.h"
  25
  26 struct host1x;
  27
  28 struct host1x_channel {
  29         struct list_head list;
  30
  31         unsigned int refcount;
  32         unsigned int id;
  33         struct mutex reflock;
  34         struct mutex submitlock;
  35         void __iomem *regs;
  36         struct device *dev;
  37         struct host1x_cdma cdma;
  38 };
  39
  40 /* channel list operations */
  41 int host1x_channel_list_init(struct host1x *host);
  42
  43 #define host1x_for_each_channel(host, channel)                          \
  44         list_for_each_entry(channel, &host->chlist.list, list)
  45
  46 #endif