1 files changed, 94 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 000000000000..a32f97266c02
--- /dev/null
+++ b/drivers/video/tegra/host/nvhost_channel.h
@@ -0,0 +1,94 @@
+/*
+ * drivers/video/tegra/host/nvhost_channel.h
+ *
+ * Tegra Graphics Host Channel
+ *
+ * Copyright (c) 2010, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef __NVHOST_CHANNEL_H
+#define __NVHOST_CHANNEL_H
+
+#include "nvhost_cdma.h"
+#include "nvhost_acm.h"
+#include "nvhost_hwctx.h"
+
+#include <linux/cdev.h>
+#include <linux/io.h>
+
+#define NVHOST_CHANNEL_BASE 0
+#define NVHOST_NUMCHANNELS (NV_HOST1X_CHANNELS - 1)
+#define NVHOST_MAX_GATHERS 512
+#define NVHOST_MAX_HANDLES 1280
+
+struct nvhost_dev;
+
+struct nvhost_channeldesc {
+	const char *name;
+	nvhost_modulef power;
+	u32 syncpts;
+	u32 waitbases;
+	u32 modulemutexes;
+	u32 class;
+	bool exclusive;
+};
+
+struct nvhost_channel {
+	int refcount;
+	struct mutex reflock;
+	struct mutex submitlock;
+	void __iomem *aperture;
+	struct nvhost_dev *dev;
+	const struct nvhost_channeldesc *desc;
+	struct nvhost_hwctx *cur_ctx;
+	struct device *node;
+	struct cdev cdev;
+	struct nvhost_hwctx_handler ctxhandler;
+	struct nvhost_module mod;
+	struct nvhost_cdma cdma;
+};
+
+struct nvhost_op_pair {
+	u32 op1;
+	u32 op2;
+};
+
+struct nvhost_cpuinterrupt {
+	u32 syncpt_val;
+	void *intr_data;
+};
+
+int nvhost_channel_init(
+	struct nvhost_channel *ch,
+	struct nvhost_dev *dev, int index);
+
+void nvhost_channel_submit(
+	struct nvhost_channel *ch,
+	struct nvhost_op_pair *ops,
+	int num_pairs,
+	struct nvhost_cpuinterrupt *intrs,
+	int num_intrs,
+	struct nvmap_handle **unpins,
+	int num_unpins,
+	u32 syncpt_id,
+	u32 syncpt_val);
+
+struct nvhost_channel *nvhost_getchannel(struct nvhost_channel *ch);
+void nvhost_putchannel(struct nvhost_channel *ch, struct nvhost_hwctx *ctx);
+void nvhost_channel_suspend(struct nvhost_channel *ch);
+
+#endif