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Diffstat (limited to 'src/vendorcode/amd/agesa/f10/Proc/HT/htGraph/htGraph.c')
| -rwxr-xr-x | src/vendorcode/amd/agesa/f10/Proc/HT/htGraph/htGraph.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f10/Proc/HT/htGraph/htGraph.c b/src/vendorcode/amd/agesa/f10/Proc/HT/htGraph/htGraph.c new file mode 100755 index 0000000000..34215af04d --- /dev/null +++ b/src/vendorcode/amd/agesa/f10/Proc/HT/htGraph/htGraph.c @@ -0,0 +1,195 @@ +/** + * @file + * + * Routines to deal with topology data. + * + * Access the topologies and information about a topology. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: HyperTransport + * @e \$Revision: 44323 $ @e \$Date: 2010-12-22 01:24:58 -0700 (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 "Ids.h" +#include "htGraph.h" +#include "OptionsHt.h" +#include "Filecode.h" +#define FILECODE PROC_HT_HTGRAPH_HTGRAPH_FILECODE + +extern OPTION_HT_CONFIGURATION OptionHtConfiguration; + +/*----------------------------------------------------------------------------------------*/ +/** + * Returns the AGESA built in topology list + * + * @param[out] List a pointer to the built in topology list + */ +VOID +GetAmdTopolist ( + OUT UINT8 ***List + ) +{ + // Cast below to hush CONST warning. The built in list must be CONST to be in ROM statically. + // The caller of this routine may get a topolist pointer from the interface, however, and + // that is not CONST, since it could be on the stack. + // + *List = (UINT8 **)OptionHtConfiguration.HtOptionBuiltinTopologies; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Returns the number of Nodes in the compressed graph + * + * @param[in] Graph a compressed graph + * + * @return the number of Nodes in the graph + */ +UINT8 +GraphHowManyNodes ( + IN UINT8 *Graph + ) +{ + return Graph[0]; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Returns true if NodeA is directly connected to NodeB, false otherwise + * + * if NodeA == NodeB also returns false. + * Relies on rule that directly connected Nodes always route requests directly. + * + * @param[in] Graph the graph to examine + * @param[in] NodeA the Node number of the first Node + * @param[in] NodeB the Node number of the second Node + * + * @retval TRUE NodeA connects to NodeB + * @retval FALSE NodeA does not connect to NodeB + */ +BOOLEAN +GraphIsAdjacent ( + IN UINT8 *Graph, + IN UINT8 NodeA, + IN UINT8 NodeB + ) +{ + UINT8 size; + size = Graph[0]; + ASSERT ((NodeA < size) && (NodeB < size)); + return (Graph[1 + (NodeA*size + NodeB)*2 + 1] & 0x0F) == NodeB; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Returns the graph Node used by NodeA to route responses targeted at NodeB. + * + * This will be a Node directly connected to NodeA (possibly NodeB itself), + * or "Route to Self" if NodeA and NodeB are the same Node. + * Note that all Node numbers are abstract Node numbers of the topology graph, + * it is the responsibility of the caller to apply any permutation needed. + * + * @param[in] Graph the graph to examine + * @param[in] NodeA the Node number of the first Node + * @param[in] NodeB the Node number of the second Node + * + * @return The response route Node + */ +UINT8 +GraphGetRsp ( + IN UINT8 *Graph, + IN UINT8 NodeA, + IN UINT8 NodeB + ) +{ + UINT8 size; + size = Graph[0]; + ASSERT ((NodeA < size) && (NodeB < size)); + return (Graph[1 + (NodeA*size + NodeB)*2 + 1] & 0xF0) >> 4; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Returns the graph Node used by NodeA to route requests targeted at NodeB. + * + * This will be a Node directly connected to NodeA (possibly NodeB itself), + * or "Route to Self" if NodeA and NodeB are the same Node. + * Note that all Node numbers are abstract Node numbers of the topology graph, + * it is the responsibility of the caller to apply any permutation needed. + * + * @param[in] Graph the graph to examine + * @param[in] NodeA the Node number of the first Node + * @param[in] NodeB the Node number of the second Node + * + * @return The request route Node + */ +UINT8 +GraphGetReq ( + IN UINT8 *Graph, + IN UINT8 NodeA, + IN UINT8 NodeB + ) +{ + UINT8 size; + size = Graph[0]; + ASSERT ((NodeA < size) && (NodeB < size)); + return (Graph[1 + (NodeA*size + NodeB)*2 + 1] & 0x0F); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Returns a bit vector of Nodes that NodeA should forward a broadcast from + * NodeB towards + * + * @param[in] Graph the graph to examine + * @param[in] NodeA the Node number of the first Node + * @param[in] NodeB the Node number of the second Node + * + * @return the broadcast routes for NodeA from NodeB + */ +UINT8 +GraphGetBc ( + IN UINT8 *Graph, + IN UINT8 NodeA, + IN UINT8 NodeB + ) +{ + UINT8 size; + size = Graph[0]; + ASSERT ((NodeA < size) && (NodeB < size)); + return Graph[1 + (NodeA*size + NodeB)*2]; +} + |