diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f12/Proc/HT/Features/htIds.c')
-rwxr-xr-x | src/vendorcode/amd/agesa/f12/Proc/HT/Features/htIds.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f12/Proc/HT/Features/htIds.c b/src/vendorcode/amd/agesa/f12/Proc/HT/Features/htIds.c new file mode 100755 index 0000000000..57cae063e0 --- /dev/null +++ b/src/vendorcode/amd/agesa/f12/Proc/HT/Features/htIds.c @@ -0,0 +1,150 @@ +/* $NoKeywords:$ */ +/** + * @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: 44324 $ @e \$Date: 2010-12-22 17:16:51 +0800 (Wed, 22 Dec 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. + * + ***************************************************************************/ + + +#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 (G1_PEICC) +#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++; + } + } + } +} + |