1 files changed, 86 insertions, 0 deletions

diff --git a/drivers/video/tegra/host/nvhost_channel.h b/drivers/video/tegra/host/nvhost_channel.h
new file mode 100644
index 00000000000..7b946c8ee85
--- /dev/null
+++ b/drivers/video/tegra/host/nvhost_channel.h
@@ -0,0 +1,86 @@
+/*
+ * drivers/video/tegra/host/nvhost_channel.h
+ *
+ * Tegra Graphics Host Channel
+ *
+ * Copyright (c) 2010-2012, 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 __NVHOST_CHANNEL_H
+#define __NVHOST_CHANNEL_H
+
+#include "nvhost_cdma.h"
+#include "nvhost_acm.h"
+#include "nvhost_hwctx.h"
+#include "nvhost_job.h"
+
+#include <linux/cdev.h>
+#include <linux/io.h>
+
+#define NVHOST_MAX_WAIT_CHECKS 256
+#define NVHOST_MAX_GATHERS 512
+#define NVHOST_MAX_HANDLES 1280
+#define NVHOST_MAX_POWERGATE_IDS 2
+
+struct nvhost_master;
+struct nvhost_waitchk;
+struct nvhost_device;
+
+struct nvhost_channel_gather {
+        u32 words;
+        phys_addr_t mem;
+        u32 mem_id;
+        int offset;
+};
+
+struct nvhost_channel {
+        int refcount;
+        int chid;
+        u32 syncpt_id;
+        struct mutex reflock;
+        struct mutex submitlock;
+        void __iomem *aperture;
+        struct nvhost_hwctx *cur_ctx;
+        struct device *node;
+        struct nvhost_device *dev;
+        struct cdev cdev;
+        struct nvhost_hwctx_handler *ctxhandler;
+        struct nvhost_cdma cdma;
+};
+
+int nvhost_channel_init(
+        struct nvhost_channel *ch,
+        struct nvhost_master *dev, int index);
+
+int nvhost_channel_submit(struct nvhost_job *job);
+
+struct nvhost_channel *nvhost_getchannel(struct nvhost_channel *ch);
+void nvhost_putchannel(struct nvhost_channel *ch, struct nvhost_hwctx *ctx);
+int nvhost_channel_suspend(struct nvhost_channel *ch);
+
+#define channel_cdma_op(ch) (nvhost_get_host(ch->dev)->op.cdma)
+#define channel_op(ch) (nvhost_get_host(ch->dev)->op.channel)
+#define host_channel_op(host) (host->op.channel)
+
+int nvhost_channel_drain_read_fifo(void __iomem *chan_regs,
+                        u32 *ptr, unsigned int count, unsigned int *pending);
+
+int nvhost_channel_read_3d_reg(
+        struct nvhost_channel *channel,
+        struct nvhost_hwctx *hwctx,
+        u32 offset,
+        u32 *value);
+
+#endif