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+/* $NoKeywords:$ */
+/**
+ * @file
+ *
+ * Link Optimization Feature.
+ *
+ * Contains interface for Link Optimization.
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project: AGESA
+ * @e sub-project: HyperTransport
+ * @e \$Revision: 34897 $ @e \$Date: 2010-07-14 10:07:10 +0800 (Wed, 14 Jul 2010) $
+ *
+ */
+/*
+ *****************************************************************************
+ *
+ * Copyright (c) 2011, Advanced Micro Devices, Inc.
+ * 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 Advanced Micro Devices, Inc. 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 ADVANCED MICRO DEVICES, INC. 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 _HT_FEAT_OPTIMIZATION_H_
+#define _HT_FEAT_OPTIMIZATION_H_
+
+/*----------------------------------------------------------------------------
+ * Mixed (DEFINITIONS AND MACROS / TYPEDEFS, STRUCTURES, ENUMS)
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/*-----------------------------------------------------------------------------
+ * DEFINITIONS AND MACROS
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+
+/*----------------------------------------------------------------------------
+ * FUNCTIONS PROTOTYPE
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/**
+ * Translate a desired width setting to the bits to set in the register field.
+ */
+UINT8
+ConvertWidthToBits (
+ IN UINT8 Value
+ );
+
+/**
+ * Access HT Link Control Register.
+ *
+ */
+VOID
+SetHtControlRegisterBits (
+ IN PCI_ADDR Reg,
+ IN UINT8 HiBit,
+ IN UINT8 LoBit,
+ IN UINT32 *Value,
+ IN STATE_DATA *State
+ );
+
+/**
+ * Get Link features into system data structure.
+ *
+ */
+VOID
+GatherLinkData (
+ IN STATE_DATA *State
+ );
+
+/**
+ * Optimize Links.
+ *
+ */
+VOID
+SelectOptimalWidthAndFrequency (
+ IN OUT STATE_DATA *State
+ );
+
+/**
+ * Change the hardware state for all Links according to the now optimized data in the
+ * port list data structure.
+ *
+ */
+VOID
+SetLinkData (
+ IN STATE_DATA *State
+ );
+
+/**
+ * Retry must be enabled on all coherent links if it is enabled on any coherent links.
+ *
+ */
+BOOLEAN
+IsCoherentRetryFixup (
+ IN STATE_DATA *State
+ );
+
+/**
+ * Find a specific HT capability type.
+ *
+ * @retval FALSE the capability was not found
+ */
+BOOLEAN
+DoesDeviceHaveHtSubtypeCap (
+ IN PCI_ADDR DevicePointer,
+ IN UINT8 CapSubType,
+ OUT PCI_ADDR *CapabilityBase,
+ IN STATE_DATA *State
+ );
+
+#endif /* _HT_FEAT_OPTIMIZATION_H_ */