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 struct host1x_channel *host1x_channel_request(struct device *dev); 44 void host1x_channel_free(struct host1x_channel *channel); 45 struct host1x_channel *host1x_channel_get(struct host1x_channel *channel); 46 void host1x_channel_put(struct host1x_channel *channel); 47 int host1x_job_submit(struct host1x_job *job); 48 49 #define host1x_for_each_channel(host, channel) \ 50 list_for_each_entry(channel, &host->chlist.list, list) 51 52 #endif 53