--- /dev/null
+/* $NoKeywords:$ */
+/**
+ * @file
+ *
+ * AMD IDS HyperTransport Implementation.
+ *
+ * Contains AMD AGESA Integrated Debug HT related support.
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project: AGESA
+ * @e sub-project: HyperTransport
+ * @e \$Revision: 56279 $ @e \$Date: 2011-07-11 13:11:28 -0600 (Mon, 11 Jul 2011) $
+ */
+/*****************************************************************************
+ *
+ * Copyright (C) 2012 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.
+ *
+ *
+ ***************************************************************************/
+
+
+#include "AGESA.h"
+#include "amdlib.h"
+#include "Ids.h"
+#include "Topology.h"
+#include "htFeat.h"
+#include "IdsHt.h"
+#include "htInterface.h"
+#include "htInterfaceGeneral.h"
+#include "htNb.h"
+#include "heapManager.h"
+#include "Filecode.h"
+CODE_GROUP (G1_PEICC)
+RDATA_GROUP (G2_PEI)
+#define FILECODE PROC_HT_FEATURES_HTIDS_FILECODE
+
+
+/*-------------------------------------------------------------------------------------*/
+/**
+ * Apply an IDS port override to the desired HT link.
+ *
+ * The IDS port override allows absolute control of a link's frequency and width, such as
+ * would be used for board characterization and test. The IDS backend code is responsible
+ * for handling the NV items and building them into a port override list. Here we search
+ * that list for any overrides which apply, and update the data used by the HT feature code.
+ *
+ * @param[in] IsSourcePort Since we handle both ports on a match, only do that if TRUE.
+ * @param[in,out] Port0 The PORTLIST item for the first endpoint of a link.
+ * @param[in,out] Port1 The PORTLIST item for the second endpoint of a link.
+ * @param[in,out] PortOverrideList IN: A pointer to the port override list or NULL,
+ * OUT: A pointer to the port override list.
+ * @param[in] State access to ht interface and nb support methods.
+ *
+ */
+VOID
+HtIdsGetPortOverride (
+ IN BOOLEAN IsSourcePort,
+ IN OUT PORT_DESCRIPTOR *Port0,
+ IN OUT PORT_DESCRIPTOR *Port1,
+ IN OUT HTIDS_PORT_OVERRIDE_LIST *PortOverrideList,
+ IN STATE_DATA *State
+ )
+{
+ LOCATE_HEAP_PTR LocHeapParams;
+ UINT8 SocketA;
+ UINT8 SocketB;
+ UINT8 PackageLinkA;
+ UINT8 PackageLinkB;
+ HTIDS_PORT_OVERRIDE_LIST p;
+
+ if (IsSourcePort) {
+ ASSERT (PortOverrideList != NULL);
+ // The caller can cache the override list by providing the pointer (to the heap buffer).
+ // If the pointer to the port override list is null, then check if it is on the heap,
+ // and update the caller's pointer so it is cached.
+ // If the buffer is not in heap, call the IDS backend to get the NV data (which is likely also
+ // in heap).
+ if (*PortOverrideList == NULL) {
+ // locate the table in heap
+ LocHeapParams.BufferHandle = IDS_HT_DATA_HANDLE;
+ if (HeapLocateBuffer (&LocHeapParams, State->ConfigHandle) == AGESA_SUCCESS) {
+ *PortOverrideList = (HTIDS_PORT_OVERRIDE_LIST)LocHeapParams.BufferPtr;
+ } else {
+ // Ask IDS backend code for the list
+ IDS_OPTION_HOOK (IDS_HT_CONTROL, PortOverrideList, State->ConfigHandle);
+ }
+ }
+ ASSERT (*PortOverrideList != NULL);
+
+ // Search the port override list to see if there is an override that applies to this link.
+ // The match criteria are if either endpoint of the current port list item matches
+ // port override.
+ p = *PortOverrideList;
+ SocketA = State->HtInterface->GetSocketFromMap (Port0->NodeID, State);
+ PackageLinkA = State->Nb->GetPackageLink (Port0->NodeID, Port0->Link, State->Nb);
+ SocketB = State->HtInterface->GetSocketFromMap (Port1->NodeID, State);
+ PackageLinkB = State->Nb->GetPackageLink (Port1->NodeID, Port1->Link, State->Nb);
+
+ while ((p != NULL) && (p->Socket != HT_LIST_TERMINAL)) {
+ if ((((p->Socket == SocketA) || (p->Socket == HT_LIST_MATCH_ANY)) &&
+ ((p->Link == PackageLinkA) || ((p->Link == HT_LIST_MATCH_ANY) &&
+ (!IsPackageLinkInternal (PackageLinkA))) || ((p->Link == HT_LIST_MATCH_INTERNAL_LINK) && (IsPackageLinkInternal (PackageLinkA))))) ||
+ (((p->Socket == SocketB) || (p->Socket == HT_LIST_MATCH_ANY)) &&
+ ((p->Link == PackageLinkB) || ((p->Link == HT_LIST_MATCH_ANY) &&
+ (!IsPackageLinkInternal (PackageLinkA))) || ((p->Link == HT_LIST_MATCH_INTERNAL_LINK) && (IsPackageLinkInternal (PackageLinkB))))))
+ {
+ // Found a match, update width and frequency of both endpoints.
+ if (p->WidthIn != HT_LIST_TERMINAL) {
+ Port0->SelWidthIn = p->WidthIn;
+ Port1->SelWidthOut = p->WidthIn;
+ }
+ if (p->WidthOut != HT_LIST_TERMINAL) {
+ Port0->SelWidthOut = p->WidthOut;
+ Port1->SelWidthIn = p->WidthOut;
+ }
+ if (p->Frequency != HT_LIST_TERMINAL) {
+ Port0->SelFrequency = p->Frequency;
+ Port1->SelFrequency = p->Frequency;
+ }
+ break;
+ } else {
+ p++;
+ }
+ }
+ }
+}
+
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