diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieInitLibV5/PcieTopologyServicesV5.c')
-rw-r--r-- | src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieInitLibV5/PcieTopologyServicesV5.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieInitLibV5/PcieTopologyServicesV5.c b/src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieInitLibV5/PcieTopologyServicesV5.c new file mode 100644 index 0000000000..9c602e1442 --- /dev/null +++ b/src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieInitLibV5/PcieTopologyServicesV5.c @@ -0,0 +1,152 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * PCIe topology initialization service procedures. + * + * + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: GNB + * @e \$Revision: 84150 $ @e \$Date: 2012-12-12 15:46:25 -0600 (Wed, 12 Dec 2012) $ + * + */ +/* +***************************************************************************** +* + * Copyright (c) 2008 - 2013, 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. +* *************************************************************************** +* +*/ + +/*---------------------------------------------------------------------------------------- + * M O D U L E S U S E D + *---------------------------------------------------------------------------------------- + */ +#include "AGESA.h" +#include "Ids.h" +#include "amdlib.h" +#include "Gnb.h" +#include "GnbPcie.h" +#include "GnbPcieFamServices.h" +#include "GnbCommonLib.h" +#include "GnbPcieConfig.h" +#include "GnbPcieInitLibV1.h" +#include "GnbPcieInitLibV5.h" +#include "GnbRegistersCommonV2.h" +#include "Filecode.h" +#define FILECODE PROC_GNB_MODULES_GNBPCIEINITLIBV5_PCIETOPOLOGYSERVICESV5_FILECODE + +/*---------------------------------------------------------------------------------------- + * D E F I N I T I O N S A N D M A C R O S + *---------------------------------------------------------------------------------------- + */ + + +/*---------------------------------------------------------------------------------------- + * T Y P E D E F S A N D S T R U C T U R E S + *---------------------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------------------- + * P R O T O T Y P E S O F L O C A L F U N C T I O N S + *---------------------------------------------------------------------------------------- + */ + + +/*----------------------------------------------------------------------------------------*/ +/** + * Lanes enable/disable control + * + * @param[in] Control Lane control action + * @param[in] LaneBitMap Core lanes bitmap + * @param[in] Wrapper Pointer to Wrapper config descriptor + * @param[in] Pcie Pointer to global PCIe configuration + */ +VOID +PcieTopologyLaneControlV5 ( + IN LANE_CONTROL Control, + IN UINT32 LaneBitMap, + IN PCIe_WRAPPER_CONFIG *Wrapper, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + D0F0xE4_WRAP_8029_STRUCT D0F0xE4_WRAP_8029; + D0F0xE4_WRAP_8029.Value = PcieRegisterRead ( + Wrapper, + WRAP_SPACE (Wrapper->WrapId, D0F0xE4_WRAP_8029_ADDRESS), + Pcie + ); + + if (Control == EnableLanes) { + D0F0xE4_WRAP_8029.Value |= LaneBitMap; + } else if (Control == DisableLanes) { + D0F0xE4_WRAP_8029.Value &= (~LaneBitMap); + } + D0F0xE4_WRAP_8029.Value &= ((1 << Wrapper->NumberOfLanes) - 1); + PcieRegisterWrite ( + Wrapper, + WRAP_SPACE (Wrapper->WrapId, D0F0xE4_WRAP_8029_ADDRESS), + D0F0xE4_WRAP_8029.Value, + TRUE, + Pcie + ); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Reduce link width + * + * + * @param[in] LinkWidth Link width + * @param[in] Engine Pointer to Engine config descriptor + * @param[in] Pcie Pointer to global PCIe configuration + */ +VOID +PcieTopologyReduceLinkWidthV5 ( + IN UINT8 LinkWidth, + IN PCIe_ENGINE_CONFIG *Engine, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + PCIe_WRAPPER_CONFIG *Wrapper; + UINT32 LinkReversed; + UINT8 DeltaLinkWidthBitmap; + UINT32 LanesToDisable; + Wrapper = PcieConfigGetParentWrapper (Engine); + LinkReversed = PcieUtilIsLinkReversed (TRUE, Engine, Pcie); + + DeltaLinkWidthBitmap = (1 << (PcieConfigGetNumberOfCoreLane (Engine) - LinkWidth)) - 1; + LanesToDisable = (DeltaLinkWidthBitmap << ((LinkReversed == 1) ? Engine->Type.Port.StartCoreLane : (Engine->Type.Port.StartCoreLane + LinkWidth))); + + PcieTopologyLaneControlV5 ( + DisableLanes, + LanesToDisable, + Wrapper, + Pcie + ); +} |