[ARM] tegra: add nvos/nvrm/nvmap drivers

arch/arm/mach-tegra/nv/include/nvrm_init.h

+/*
+ * Copyright (c) 2009 NVIDIA Corporation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of the NVIDIA Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef INCLUDED_nvrm_init_H
+#define INCLUDED_nvrm_init_H
+
+
+#if defined(__cplusplus)
+extern "C"
+{
+#endif
+
+
+#include "nvcommon.h"
+#include "nverror.h"
+
+/**
+ * NvRmDeviceHandle is an opaque handle to an RM device.
+ */
+
+typedef struct NvRmDeviceRec *NvRmDeviceHandle;
+
+/**
+ * A physical address type sized such that it matches the addressing support of
+ * the hardware modules RM typically interfaces with.  May be smaller than an
+ * NvOsPhysAddr.
+ *
+ * XXX We should probably get rid of this and just use NvU32.  It's rather
+ * difficult to explain what exactly NvRmPhysAddr is.  Also, what if some units
+ * are upgraded to do 64-bit addressing and others remain 32?  Would we really
+ * want to increase NvRmPhysAddr to NvU64 across the board?
+ *
+ * Another option would be to put the following types in nvcommon.h:
+ *   typedef NvU32 NvPhysAddr32;
+ *   typedef NvU64 NvPhysAddr64;
+ * Using these types would then be purely a form of documentation and nothing
+ * else.
+ *
+ * This header file is a somewhat odd place to put this type.  Putting it in
+ * memmgr would be even worse, though, because then a lot of header files would
+ * all suddenly need to #include nvrm_memmgr.h just to get the NvRmPhysAddr
+ * type.  (They already all include this header anyway.)
+ */
+
+typedef NvU32 NvRmPhysAddr;
+
+/**
+ * Opens the Resource Manager for a given device.
+ *
+ * Can be called multiple times for a given device.  Subsequent
+ * calls will not necessarily return the same handle.  Each call to
+ * NvRmOpen() must be paired with a corresponding call to NvRmClose().
+ *
+ * Assert encountered in debug mode if DeviceId value is invalid.
+ *
+ * This call is not intended to perform any significant hardware
+ * initialization of the device; rather its primary purpose is to
+ * initialize RM's internal data structures that are involved in
+ * managing the device.
+ * 
+ * @param pHandle the RM handle is stored here.
+ * @param DeviceId implementation-dependent value specifying the device
+ *     to be opened.  Currently must be set to zero.
+ *
+ * @retval NvSuccess Indicates that RM was successfully opened.
+ * @retval NvError_InsufficientMemory Indicates that RM was unable to allocate
+ *     memory for its internal data structures.
+ */
+
+ NvError NvRmOpen( 
+    NvRmDeviceHandle * pHandle,
+    NvU32 DeviceId );
+
+/**
+ * Called by the platform/OS code to initialize the Rm. Usage and
+ * implementation of this API is platform specific.
+ *  
+ * This APIs should not be called by the normal clients of the Rm.
+ *    
+ * This APIs is guaranteed to succeed on the supported platforms.
+ *
+ * @param pHandle the RM handle is stored here.
+ */
+
+ void NvRmInit( 
+    NvRmDeviceHandle * pHandle );
+
+/**
+ * Temporary version of NvRmOpen lacking the DeviceId parameter
+ */
+
+ NvError NvRmOpenNew( 
+    NvRmDeviceHandle * pHandle );
+
+/**
+ * Closes the Resource Manager for a given device.
+ *
+ * Each call to NvRmOpen() must be paired with a corresponding call 
+ * to NvRmClose().
+ *
+ * @param hDevice The RM handle.  If hDevice is NULL, this API has no effect.
+ */
+
+ void NvRmClose( 
+    NvRmDeviceHandle hDevice );
+
+/** @} */
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif