1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/media/video/tiler/tmm.h b/drivers/media/video/tiler/tmm.h
new file mode 100644
index 00000000000..fbdc1e23d0e
--- /dev/null
+++ b/drivers/media/video/tiler/tmm.h
@@ -0,0 +1,109 @@
+/*
+ * tmm.h
+ *
+ * TMM interface definition for TI TILER driver.
+ *
+ * Author: Lajos Molnar <molnar@ti.com>
+ *
+ * Copyright (C) 2009-2010 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+#ifndef TMM_H
+#define TMM_H
+
+#include <mach/dmm.h>
+/**
+ * TMM interface
+ */
+struct tmm {
+	void *pvt;
+
+	/* function table */
+	u32 *(*get)	(struct tmm *tmm, u32 num_pages);
+	void (*free)	(struct tmm *tmm, u32 *pages);
+	s32  (*map)	(struct tmm *tmm, struct pat_area area, u32 page_pa);
+	void (*clear)	(struct tmm *tmm, struct pat_area area);
+	void (*deinit)	(struct tmm *tmm);
+};
+
+/**
+ * Request a set of pages from the DMM free page stack.
+ * @return a pointer to a list of physical page addresses.
+ */
+static inline
+u32 *tmm_get(struct tmm *tmm, u32 num_pages)
+{
+	if (tmm && tmm->pvt)
+		return tmm->get(tmm, num_pages);
+	return NULL;
+}
+
+/**
+ * Return a set of used pages to the DMM free page stack.
+ * @param list a pointer to a list of physical page addresses.
+ */
+static inline
+void tmm_free(struct tmm *tmm, u32 *pages)
+{
+	if (tmm && tmm->pvt)
+		tmm->free(tmm, pages);
+}
+
+/**
+ * Program the physical address translator.
+ * @param area PAT area
+ * @param list of pages
+ */
+static inline
+s32 tmm_map(struct tmm *tmm, struct pat_area area, u32 page_pa)
+{
+	if (tmm && tmm->map && tmm->pvt)
+		return tmm->map(tmm, area, page_pa);
+	return -ENODEV;
+}
+
+/**
+ * Clears the physical address translator.
+ * @param area PAT area
+ */
+static inline
+void tmm_clear(struct tmm *tmm, struct pat_area area)
+{
+	if (tmm && tmm->clear && tmm->pvt)
+		tmm->clear(tmm, area);
+}
+
+/**
+ * Checks whether tiler memory manager supports mapping
+ */
+static inline
+bool tmm_can_map(struct tmm *tmm)
+{
+	return tmm && tmm->map;
+}
+
+/**
+ * Deinitialize tiler memory manager
+ */
+static inline
+void tmm_deinit(struct tmm *tmm)
+{
+	if (tmm && tmm->pvt)
+		tmm->deinit(tmm);
+}
+
+/**
+ * TMM implementation for PAT support.
+ *
+ * Initialize TMM for PAT with given id.
+ */
+struct tmm *tmm_pat_init(u32 pat_id);
+
+#endif