1 files changed, 67 insertions, 0 deletions

diff --git a/drivers/video/tegra/host/nvhost_hwctx.h b/drivers/video/tegra/host/nvhost_hwctx.h
new file mode 100644
index 00000000000..02a3976f01c
--- /dev/null
+++ b/drivers/video/tegra/host/nvhost_hwctx.h
@@ -0,0 +1,67 @@
+/*
+ * drivers/video/tegra/host/nvhost_hwctx.h
+ *
+ * Tegra Graphics Host Hardware Context Interface
+ *
+ * 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_HWCTX_H
+#define __NVHOST_HWCTX_H
+
+#include <linux/string.h>
+#include <linux/kref.h>
+
+#include <linux/nvhost.h>
+#include <mach/nvmap.h>
+
+struct nvhost_channel;
+struct nvhost_cdma;
+
+struct nvhost_hwctx {
+        struct kref ref;
+        struct nvhost_hwctx_handler *h;
+        struct nvhost_channel *channel;
+        bool valid;
+        bool has_timedout;
+};
+
+struct nvhost_hwctx_handler {
+        struct nvhost_hwctx * (*alloc) (struct nvhost_hwctx_handler *h,
+                        struct nvhost_channel *ch);
+        void (*get) (struct nvhost_hwctx *ctx);
+        void (*put) (struct nvhost_hwctx *ctx);
+        void (*save_push) (struct nvhost_hwctx *ctx,
+                        struct nvhost_cdma *cdma);
+        void (*save_service) (struct nvhost_hwctx *ctx);
+        void *priv;
+};
+
+
+struct hwctx_reginfo {
+        unsigned int offset:12;
+        unsigned int count:16;
+        unsigned int type:2;
+};
+
+enum {
+        HWCTX_REGINFO_DIRECT = 0,
+        HWCTX_REGINFO_INDIRECT,
+        HWCTX_REGINFO_INDIRECT_4X
+};
+
+#define HWCTX_REGINFO(offset, count, type) {offset, count, HWCTX_REGINFO_##type}
+
+#endif