diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/HT/NbCommon/htNbOptimization.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/HT/NbCommon/htNbOptimization.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/HT/NbCommon/htNbOptimization.c b/src/vendorcode/amd/agesa/f14/Proc/HT/NbCommon/htNbOptimization.c new file mode 100644 index 0000000000..7c8551b036 --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/HT/NbCommon/htNbOptimization.c @@ -0,0 +1,258 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * Link optimization support. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: HyperTransport + * @e \$Revision: 35136 $ @e \$Date: 2010-07-16 11:29:48 +0800 (Fri, 16 Jul 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. + * + * *************************************************************************** + * + */ + +/* + *---------------------------------------------------------------------------- + * MODULES USED + * + *---------------------------------------------------------------------------- + */ + + + +#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 "htNotify.h" +#include "htNb.h" +#include "htNbHardwareFam10.h" +#include "htNbOptimization.h" +#include "Filecode.h" +CODE_GROUP (G1_PEICC) +RDATA_GROUP (G1_PEICC) + +#define FILECODE PROC_HT_NBCOMMON_HTNBOPTIMIZATION_FILECODE +/*---------------------------------------------------------------------------- + * DEFINITIONS AND MACROS + * + *---------------------------------------------------------------------------- + */ + +/*************************************************************************** + *** Link Optimization *** + ***************************************************************************/ + +/*----------------------------------------------------------------------------------------*/ +/** + * Get Link features into system data structure. + * + * @HtNbMethod{::F_GATHER_LINK_FEATURES} + * + * For a specific discovered CPU Link, populate the port list with the frequency + * capabilities. Support for other link oriented capabilities, currently: + * - Unit ID Clumping. Set to disabled. This doesn't mean the CPU doesn't support clumping, + * it just means: + * - The CPU doesn't clump its host unit ids, and + * - We don't have to check as carefully in SetLinkData whether the port is an IO host link. + * + * @param[in,out] ThisPort The PortList structure entry for this link's port + * @param[in] Interface Access to non-HT support functions. + * @param[in] PlatformConfig Platform profile/build option config structure. + * @param[in] Nb this northbridge + */ +VOID +GatherLinkFeatures ( + IN OUT PORT_DESCRIPTOR *ThisPort, + IN HT_INTERFACE *Interface, + IN PLATFORM_CONFIGURATION *PlatformConfig, + IN NORTHBRIDGE *Nb + ) +{ + PCI_ADDR Reg; + UINT32 Frequency; + UINT32 ExtendedFrequency; + + Reg = ThisPort->Pointer; + Reg.Address.Register += HTHOST_FREQ_REV_REG; + LibAmdPciReadBits (Reg, 30, 16, &Frequency, Nb->ConfigHandle); + Reg = ThisPort->Pointer; + Reg.Address.Register += HTHOST_FREQ_EXTENSION; + LibAmdPciReadBits (Reg, 15, 1, &ExtendedFrequency, Nb->ConfigHandle); + ThisPort->PrvFrequencyCap = ((Frequency | (ExtendedFrequency << HT_FREQUENCY_2800M)) & + Nb->NorthBridgeFreqMask (ThisPort->NodeID, Interface, PlatformConfig, Nb)); + // Check for Internal link restriction not to run at 1000 MHz (but allow lower) + if (IsPackageLinkInternal (Nb->GetPackageLink (ThisPort->NodeID, ThisPort->Link, Nb))) { + ThisPort->PrvFrequencyCap &= ~(HT_FREQUENCY_LIMIT_1000M & ~HT_FREQUENCY_LIMIT_800M); + } + ThisPort->ClumpingSupport = HT_CLUMPING_DISABLE; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Change the hardware state for all Links according to the now optimized data in the + * port list data structure for link reganging. + * + * @HtNbMethod{::F_SET_LINK_REGANG} + * + * @param[in] Node the node on which to regang a link + * @param[in] Link the sublink 0 of the sublink pair to regang + * @param[in] Nb this northbridge + */ +VOID +SetLinkRegang ( + IN UINT8 Node, + IN UINT8 Link, + IN NORTHBRIDGE *Nb + ) +{ + PCI_ADDR Reg; + UINT32 Temp; + + Temp = 1; + Reg.AddressValue = MAKE_SBDFO (MakePciSegmentFromNode (Node), + MakePciBusFromNode (Node), + MakePciDeviceFromNode (Node), + CPU_HTNB_FUNC_00, + REG_HT_LINK_EXT_CONTROL0_0X170 + (4 * Link)); + + LibAmdPciWriteBits (Reg, 0, 0, &Temp, Nb->ConfigHandle); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Change the hardware state for all Links according to the now optimized data in the + * port list data structure for Unit Id Clumping. + * + * @HtNbMethod{::F_SET_LINK_UNITID_CLUMPING} + * + * This applies to the host root of a non-coherent chain. + * + * @param[in] Node the node on which to enable clumping + * @param[in] Link the link for which to enable clumping + * @param[in] ClumpingEnables the unit id clumping enables + * @param[in] Nb this northbridge + */ +VOID +SetLinkUnitIdClumping ( + IN UINT8 Node, + IN UINT8 Link, + IN UINT32 ClumpingEnables, + IN NORTHBRIDGE *Nb + ) +{ + PCI_ADDR Reg; + + // Host Unit Ids are not clumped. + ASSERT ((ClumpingEnables & 0x3) == 0); + + Reg.AddressValue = MAKE_SBDFO (MakePciSegmentFromNode (Node), + MakePciBusFromNode (Node), + MakePciDeviceFromNode (Node), + CPU_HTNB_FUNC_00, + REG_HT_LINK_CLUMPING0_0X110 + (4 * Link)); + + LibAmdPciWriteBits (Reg, 31, 0, &ClumpingEnables, Nb->ConfigHandle); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Change the hardware state for all Links according to the now optimized data in the + * port list data structure for link frequency. + * + * @HtNbMethod{::F_SET_LINK_FREQUENCY} + * + * Handle extended frequencies. For HT3 frequencies, ensure Retry and Scrambling are + * set. For HT1, clear them. + * + * @param[in] Node the node on which to set frequency for a link + * @param[in] Link the link to set frequency + * @param[in] Frequency the frequency to set + * @param[in] Nb this northbridge + */ +VOID +SetLinkFrequency ( + IN UINT8 Node, + IN UINT8 Link, + IN UINT8 Frequency, + IN NORTHBRIDGE *Nb + ) +{ + UINT32 Temp; + PCI_ADDR Reg; + + ASSERT ((Frequency >= HT_FREQUENCY_600M && Frequency <= HT_FREQUENCY_3200M) + || (Frequency == HT_FREQUENCY_200M) || (Frequency == HT_FREQUENCY_400M)); + + // Handle extended frequencies, 2800 MHz and above. 31 > Frequency > 16 in this case. + if (Frequency > HT_FREQUENCY_2600M) { + Temp = 1; + } else { + // Clear it if not extended. + Temp = 0; + } + Reg = Nb->MakeLinkBase (Node, Link, Nb); + Reg.Address.Register += HTHOST_FREQ_EXTENSION; + LibAmdPciWriteBits (Reg, 0, 0, &Temp, Nb->ConfigHandle); + Reg = Nb->MakeLinkBase (Node, Link, Nb); + Reg.Address.Register += HTHOST_FREQ_REV_REG; + Temp = (Frequency & 0x0F); + LibAmdPciWriteBits (Reg, 11, 8, &Temp, Nb->ConfigHandle); + // Gen1 = 200Mhz -> 1000MHz, Gen3 = 1200MHz -> 2600MHz + if (Frequency > HT_FREQUENCY_1000M) { + // Enable for Gen3 frequencies + Temp = 1; + } else { + // Disable for Gen1 frequencies + Temp = 0; + } + // HT3 retry mode enable / disable + Reg.AddressValue = MAKE_SBDFO (MakePciSegmentFromNode (Node), + MakePciBusFromNode (Node), + MakePciDeviceFromNode (Node), + CPU_HTNB_FUNC_00, + REG_HT_LINK_RETRY0_0X130 + (4 * Link)); + LibAmdPciWriteBits (Reg, 0, 0, &Temp, Nb->ConfigHandle); + // and Scrambling enable / disable + Reg.AddressValue = MAKE_SBDFO (MakePciSegmentFromNode (Node), + MakePciBusFromNode (Node), + MakePciDeviceFromNode (Node), + CPU_HTNB_FUNC_00, + REG_HT_LINK_EXT_CONTROL0_0X170 + (4 * Link)); + LibAmdPciWriteBits (Reg, 3, 3, &Temp, Nb->ConfigHandle); +} |