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

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

+/*
+ * Copyright (c) 2007-2009 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 NVRM_IOCTLS_H
+#define NVRM_IOCTLS_H
+
+
+/* When we trap into the kernel, the majority of the ioctls
+ * are handled by the Generic handler, which is automatically
+ * generated by the IDL compiler.  
+ *
+ * For some special functions, we override the generated code
+ * and supply custom marshalling/unmarshalling code for performance
+ * reasons.  NvRmMemRead/Write are done this way to avoid having
+ * to allocate a buffer and do an extra copy.
+ *
+ * I'm sure as time passes we'll add more to the list here.
+ */
+
+typedef enum
+{
+    NvRmIoctls_Generic = 5000,
+    NvRmIoctls_NvRmMemRead,
+    NvRmIoctls_NvRmMemWrite,
+    NvRmIoctls_NvRmMemReadStrided,
+    NvRmIoctls_NvRmMemWriteStrided,
+    NvRmIoctls_NvRmMemMapIntoCallerPtr,
+    NvRmIoctls_NvRmGetCarveoutInfo,
+    NvRmIoctls_NvRmGraphics,    // Note: not used in Linux (see nvidlcmd.h)
+    NvRmIoctls_NvRmFbControl,
+    NvRmIoctls_NvRmBootDone,    // Called after primary boot-up complete
+
+    // These following ones are used for attaching to an existing NvRm
+    // context from another process - this is used for reference counting
+    // the kernel context when it is used both from a client process and
+    // the nvrm daemon in Linux. This mechanism is roughly equal to duplicating
+    // the nvrm driver filehandle across processes.
+    NvRmIoctls_NvRmGetClientId,
+    NvRmIoctls_NvRmClientAttach,
+    NvRmIoctls_NvRmClientDetach,
+
+    // This ioctl is for the nvrm_gpu module
+    NvRmIoctls_NvRmGpu,
+
+    NvRmIoctls_ForceWord = 0x7FFFFFFF,
+} NvRmKernelIoctls;
+
+#endif