diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f15/Proc/HT/Fam15/htNbCoherentFam15.c')
-rw-r--r-- | src/vendorcode/amd/agesa/f15/Proc/HT/Fam15/htNbCoherentFam15.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f15/Proc/HT/Fam15/htNbCoherentFam15.c b/src/vendorcode/amd/agesa/f15/Proc/HT/Fam15/htNbCoherentFam15.c new file mode 100644 index 0000000000..11083e8d18 --- /dev/null +++ b/src/vendorcode/amd/agesa/f15/Proc/HT/Fam15/htNbCoherentFam15.c @@ -0,0 +1,162 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * Coherent Family 15h Routines. + * + * Coherent feature Northbridge implementation specific to Family 15h processors. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: HyperTransport + * @e \$Revision: 44324 $ @e \$Date: 2010-12-22 02:16:51 -0700 (Wed, 22 Dec 2010) $ + * + */ +/* +***************************************************************************** +* +* 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. +* +* *************************************************************************** +* +*/ + +/* + *---------------------------------------------------------------------------- + * MODULES USED + * + *---------------------------------------------------------------------------- + */ + + + +#include "AGESA.h" +#include "amdlib.h" +#include "Ids.h" +#include "Topology.h" +#include "htFeat.h" +#include "htNb.h" +#include "htNbCommonHardware.h" +#include "htNbCoherentFam15.h" +#include "Filecode.h" +CODE_GROUP (G2_PEI) +RDATA_GROUP (G2_PEI) +#define FILECODE PROC_HT_FAM15_HTNBCOHERENTFAM15_FILECODE +/*---------------------------------------------------------------------------- + * DEFINITIONS AND MACROS + * + *---------------------------------------------------------------------------- + */ + +/*----------------------------------------------------------------------------------------*/ +/** + * Return whether the current configuration exceeds the capability. + * + * @HtNbMethod{::F_IS_EXCEEDED_CAPABLE}. + * + * Get Node capability and update the minimum supported system capability. + * + * @param[in] Node the Node + * @param[in] State sysMpCap (updated) and NodesDiscovered + * @param[in] Nb this northbridge + * + * @retval TRUE system is not capable of current config. + * @retval FALSE system is capable of current config. + */ +BOOLEAN +Fam15IsExceededCapable ( + IN UINT8 Node, + IN STATE_DATA *State, + IN NORTHBRIDGE *Nb + ) +{ + UINT32 Temp; + UINT8 MaxNodes; + PCI_ADDR Reg; + + ASSERT (Node < MAX_NODES); + + Reg.AddressValue = MAKE_SBDFO (MakePciSegmentFromNode (Node), + MakePciBusFromNode (Node), + MakePciDeviceFromNode (Node), + CPU_NB_FUNC_03, + REG_NB_CAPABILITY_3XE8); + + LibAmdPciReadBits (Reg, 18, 16, &Temp, Nb->ConfigHandle); + + if (Temp != 0) { + MaxNodes = (UINT8) (1 << (~Temp & 0x3)); // That is, 1, 2, 4, or 8 + } else { + MaxNodes = 8; + } + if (State->SysMpCap > MaxNodes) { + State->SysMpCap = MaxNodes; + } + // Note since sysMpCap is one based and NodesDiscovered is zero based, equal returns true + // + return ((BOOLEAN) (State->SysMpCap <= State->NodesDiscovered)); +} + +/** + * Stop a link, so that it is isolated from a connected device. + * + * @HtNbMethod{::F_STOP_LINK}. + * + * Use is for fatal incompatible configurations, or for user interface + * request to power off a link (IgnoreLink, SkipRegang). + * Set ConnDly to make the power effective at the warm reset. + * Set XMT and RCV off. + * + * @param[in] Node the node to stop a link on. + * @param[in] Link the link to stop. + * @param[in] State access to special routine for writing link control register + * @param[in] Nb this northbridge. + */ +VOID +Fam15StopLink ( + IN UINT8 Node, + IN UINT8 Link, + IN STATE_DATA *State, + IN NORTHBRIDGE *Nb + ) +{ + UINT32 Temp; + PCI_ADDR Reg; + + // Set ConnDly + Reg.AddressValue = MAKE_SBDFO (MakePciSegmentFromNode (Node), + MakePciBusFromNode (Node), + MakePciDeviceFromNode (Node), + CPU_HTNB_FUNC_00, + REG_LINK_GLOBAL_EXT_CONTROL_0x16C); + Temp = 1; + LibAmdPciWriteBits (Reg, 8, 8, &Temp, Nb->ConfigHandle); + // Set TransOff and EndOfChain + Reg = Nb->MakeLinkBase (Node, Link, Nb); + Reg.Address.Register += HTHOST_LINK_CONTROL_REG; + Temp = 3; + State->HtFeatures->SetHtControlRegisterBits (Reg, 7, 6, &Temp, State); +} |