1 files changed, 136 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/syslink/platform_mem.h b/arch/arm/plat-omap/include/syslink/platform_mem.h
new file mode 100644
index 00000000000..60d2c87d0f0
--- /dev/null
+++ b/arch/arm/plat-omap/include/syslink/platform_mem.h
@@ -0,0 +1,136 @@
+/*
+ *  platform_mem.c
+ *
+ * Target memory management interface implementation.
+ *
+ *  This abstracts the Memory management interface in the kernel
+ *  code. Allocation, Freeing-up, copy and address translate are
+ *  supported for the kernel memory management.
+ *
+ *  Copyright (C) 2008-2009 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 _PLATFORM_MEM_H_
+#define _PLATFORM_MEM_H_
+
+#include <linux/types.h>
+
+/*
+ *  MEMORYOS_MODULEID
+ *  Module ID for platform mem module
+ */
+#define PLATFORM_MEM_MODULEID				 (u16) 0x97D2
+
+/*
+ *  Enumerates the types of caching for memory regions
+ */
+enum platform_mem_cache_flags {
+	PLATFORM_MEM_CACHE_FLAGS_DEFAULT  = 0x00000000,
+	/* Default flags - Cached */
+	PLATFORM_MEM_CACHE_FLAGS_CACHED   = 0x00010000,
+	/* Cached memory */
+	PLATFORM_MEM_CACHE_FLAGS_UNCACHED = 0x00020000,
+	/* Uncached memory */
+	PLATFORM_MEM_CACHE_FLAGS_END_VALUE = 0x00030000
+	/* End delimiter indicating start of invalid values for this enum */
+};
+
+/*
+ *  Enumerates the types of memory allocation
+ */
+enum platform_mem_mtype_flags{
+	PLATFORM_MEM_MTYPE_FLAGS_DEFAULT  = 0x00000000,
+	/* Default flags - virtually contiguous */
+	PLATFORM_MEM_MTYPE_FLAGS_PHYSICAL = 0x00000001,
+	/* Physically contiguous */
+	PLATFORM_MEM_MTYPE_FLAGS_DMA	  = 0x00000002,
+	/* Physically contiguous */
+	PLATFORM_MEM_MTYPE_FLAGS_END_VALUE = 0x00000003
+	/* End delimiter indicating start of invalid values for this enum */
+};
+
+/*
+ *  Enumerates the types of translation
+ */
+enum memory_xlt_flags{
+	PLATFORM_MEM_XLT_FLAGS_VIRT2PHYS = 0x00000000,
+	/* Virtual to physical */
+	PLATFORM_MEM_XLT_FLAGS_PHYS2VIRT = 0x00000001,
+	/* Virtual to physical */
+	PLATFORM_MEM_XLT_FLAGS_END_VALUE  = 0x00000002
+	/* End delimiter indicating start of invalid values for this enum */
+};
+
+/*
+ *  Structure containing information required for mapping a
+ *  memory region.
+ */
+struct platform_mem_map_info {
+	u32 src;
+	/* Address to be mapped. */
+	u32 size;
+	/*  Size of memory region to be mapped. */
+	u32 dst;
+	/* Mapped address. */
+	bool	 is_cached;
+	/* Whether the mapping is to a cached area or uncached area. */
+	void *drv_handle;
+	/* Handle to the driver that is implementing the mmap call. Ignored for
+	Kernel-side version. */
+};
+
+/*
+ * Structure containing information required for unmapping a
+ * memory region.
+ */
+struct platform_mem_unmap_info {
+	u32  addr;
+	/* Address to be unmapped.*/
+	u32  size;
+	/* Size of memory region to be unmapped.*/
+	bool	is_cached;
+	/* Whether the mapping is to a cached area or uncached area.  */
+};
+
+/*
+ *  Structure containing information required for mapping a
+ *		   memory region.
+ */
+#define memory_map_info   struct platform_mem_map_info
+
+/*
+ * Structure containing information required for unmapping a
+ * memory region.
+ */
+#define memory_unmap_info struct platform_mem_unmap_info
+
+
+/* =============================================================================
+ *  APIs
+ * =============================================================================
+ */
+/* Initialize the platform mem module. */
+int platform_mem_setup(void);
+
+/* Finalize the platform mem module. */
+int  platform_mem_destroy(void);
+
+/* Maps a memory area into virtual space. */
+int  platform_mem_map(memory_map_info *map_info);
+
+/* Unmaps a memory area into virtual space. */
+int  platform_mem_unmap(memory_unmap_info *unmap_info);
+
+/* Translate API */
+void *platform_mem_translate(void *srcAddr, enum memory_xlt_flags flags);
+
+#endif /* ifndef _PLATFORM_MEM_H_ */