diff options
author | Siyuan Wang <wangsiyuanbuaa@gmail.com> | 2013-07-25 15:14:15 +0800 |
---|---|---|
committer | Bruce Griffith <Bruce.Griffith@se-eng.com> | 2013-08-04 05:40:37 +0200 |
commit | affe85fbc8a13d35960aa92ae87cbb6330ad253f (patch) | |
tree | 9c1ace69f12b06b6544faf041994aa4288fb2e45 /src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm | |
parent | ae8d06969bdde9b1250bc3c4ad93f5db408dae98 (diff) |
AMD Kabini: Add AGESA/PI code for new processor family
Change-Id: Icb6f64e2e3cfd678fb4fb4f13f0e4b678d5acc4a
Signed-off-by: Siyuan Wang <SiYuan.Wang@amd.com>
Signed-off-by: Siyuan Wang <wangsiyuanbuaa@gmail.com>
Reviewed-by: Nick Dill <nick.dill@se-eng.com>
Tested-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3836
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
Diffstat (limited to 'src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm')
-rw-r--r-- | src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm/PcieAspm.c | 374 | ||||
-rw-r--r-- | src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm/PcieAspm.h | 63 |
2 files changed, 437 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm/PcieAspm.c b/src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm/PcieAspm.c new file mode 100644 index 0000000000..22339890dc --- /dev/null +++ b/src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm/PcieAspm.c @@ -0,0 +1,374 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * PCIe link ASPM + * + * + * + * @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 "Gnb.h" +#include "GnbPcieConfig.h" +#include "OptionGnb.h" +#include "GnbCommonLib.h" +#include "GnbPcieInitLibV1.h" +#include "PcieAspmBlackList.h" +#include "Filecode.h" +#define FILECODE PROC_GNB_MODULES_GNBPCIEASPM_PCIEASPM_FILECODE +/*---------------------------------------------------------------------------------------- + * D E F I N I T I O N S A N D M A C R O S + *---------------------------------------------------------------------------------------- + */ + +extern GNB_BUILD_OPTIONS GnbBuildOptions; +/*---------------------------------------------------------------------------------------- + * T Y P E D E F S A N D S T R U C T U R E S + *---------------------------------------------------------------------------------------- + */ + +typedef struct { + GNB_PCI_SCAN_DATA ScanData; + PCIE_ASPM_TYPE Aspm; + PCI_ADDR DownstreamPort; + BOOLEAN AspmL0sBlackList; +} PCIE_ASPM_DATA; + +/*---------------------------------------------------------------------------------------- + * 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 + *---------------------------------------------------------------------------------------- + */ + + +SCAN_STATUS +PcieAspmCallback ( + IN PCI_ADDR Device, + IN OUT GNB_PCI_SCAN_DATA *ScanData + ); + +VOID +excel950_fun0 ( + IN PCI_ADDR Downstream, + IN PCI_ADDR Upstream, + IN PCIE_ASPM_TYPE Aspm, + IN OUT BOOLEAN *AspmL0sBlackList, + IN AMD_CONFIG_PARAMS *StdHeader + ); + +PCIE_ASPM_TYPE +excel950_fun1 ( + IN PCI_ADDR Device, + IN AMD_CONFIG_PARAMS *StdHeader + ); + +VOID +excel950_fun2 ( + IN PCI_ADDR DownstreamPort, + IN PCIE_ASPM_TYPE Aspm, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + PCIE_ASPM_DATA PcieAspmData; + PcieAspmData.Aspm = Aspm; + PcieAspmData.ScanData.StdHeader = StdHeader; + PcieAspmData.ScanData.GnbScanCallback = PcieAspmCallback; + PcieAspmData.AspmL0sBlackList = FALSE; + GnbLibPciScan (DownstreamPort, DownstreamPort, &PcieAspmData.ScanData); +} + +AGESA_STATUS +PcieAspmInterface ( + IN AMD_CONFIG_PARAMS *StdHeader + ); + +/*----------------------------------------------------------------------------------------*/ +/** + * Evaluate device + * + * + * + * @param[in] Device PCI Address + * @param[in,out] ScanData Scan configuration data + * @retval Scan Status of 0 + */ + +SCAN_STATUS +PcieAspmCallback ( + IN PCI_ADDR Device, + IN OUT GNB_PCI_SCAN_DATA *ScanData + ) +{ + SCAN_STATUS ScanStatus; + PCIE_ASPM_DATA *PcieAspmData; + PCIE_DEVICE_TYPE DeviceType; + ScanStatus = SCAN_SUCCESS; + IDS_HDT_CONSOLE (GNB_TRACE, " PcieAspmCallback for Device = %d:%d:%d\n", + Device.Address.Bus, + Device.Address.Device, + Device.Address.Function + ); + PcieAspmData = (PCIE_ASPM_DATA *) ScanData; + ScanStatus = SCAN_SUCCESS; + DeviceType = GnbLibGetPcieDeviceType (Device, ScanData->StdHeader); + switch (DeviceType) { + case PcieDeviceRootComplex: + case PcieDeviceDownstreamPort: + PcieAspmData->DownstreamPort = Device; + //PcieExitLatencyData->LinkCount++; + GnbLibPciRMW (Device.AddressValue | 0x18, AccessS3SaveWidth32, 0xffffffffull, 0x0, ScanData->StdHeader); + GnbLibPciScanSecondaryBus (Device, &PcieAspmData->ScanData); + //PcieExitLatencyData->LinkCount--; + + //Pcie ASPM Black List for L0s with HW method change + if ((DeviceType == PcieDeviceRootComplex) && (PcieAspmData->AspmL0sBlackList == TRUE)) { + IDS_HDT_CONSOLE (GNB_TRACE, " Black List L0s disabled = %d:%d:%d\n", Device.Address.Bus, Device.Address.Device, Device.Address.Function); + GnbLibPciIndirectRMW (Device.AddressValue | 0xE0, 0xA0, AccessS3SaveWidth32, 0xfffff0ff, 0, ScanData->StdHeader); + } + break; + case PcieDeviceUpstreamPort: + excel950_fun0 ( + PcieAspmData->DownstreamPort, + Device, + PcieAspmData->Aspm, + &PcieAspmData->AspmL0sBlackList, + ScanData->StdHeader + ); + GnbLibPciRMW (Device.AddressValue | 0x18, AccessS3SaveWidth32, 0xffffffffull, 0x0, ScanData->StdHeader); + GnbLibPciScanSecondaryBus (Device, &PcieAspmData->ScanData); + ScanStatus = SCAN_SKIP_FUNCTIONS | SCAN_SKIP_DEVICES | SCAN_SKIP_BUSES; + break; + case PcieDeviceEndPoint: + case PcieDeviceLegacyEndPoint: + excel950_fun0 ( + PcieAspmData->DownstreamPort, + Device, + PcieAspmData->Aspm, + &PcieAspmData->AspmL0sBlackList, + ScanData->StdHeader + ); + ScanStatus = SCAN_SKIP_FUNCTIONS | SCAN_SKIP_DEVICES | SCAN_SKIP_BUSES; + break; + default: + break; + } + return ScanStatus; +} + +VOID +excel950_fun4 ( + IN PCI_ADDR Function, + IN PCIE_ASPM_TYPE Aspm, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT8 PcieCapPtr; + PcieCapPtr = GnbLibFindPciCapability (Function.AddressValue, PCIE_CAP_ID, StdHeader); + if (PcieCapPtr != 0) { + GnbLibPciRMW ( + Function.AddressValue | (PcieCapPtr + PCIE_LINK_CTRL_REGISTER) , + AccessS3SaveWidth8, + (UINT32)~(BIT0 | BIT1), + Aspm, + StdHeader + ); + } +} + +STATIC VOID +excel950_fun5 ( + IN PCI_ADDR Device, + IN PCIE_ASPM_TYPE Aspm, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT8 MaxFunc; + UINT8 CurrentFunc; + MaxFunc = GnbLibPciIsMultiFunctionDevice (Device.AddressValue, StdHeader) ? 7 : 0; + for (CurrentFunc = 0; CurrentFunc <= MaxFunc; CurrentFunc++) { + Device.Address.Function = CurrentFunc; + if (GnbLibPciIsDevicePresent (Device.AddressValue, StdHeader)) { + excel950_fun4 (Device, Aspm, StdHeader); + } + } +} + +VOID +excel950_fun0 ( + IN PCI_ADDR Downstream, + IN PCI_ADDR Upstream, + IN PCIE_ASPM_TYPE Aspm, + IN OUT BOOLEAN *AspmL0sBlackList, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + PCIe_LINK_ASPM LinkAsmp; + PCIE_ASPM_TYPE DownstreamCap; + PCIE_ASPM_TYPE UpstreamCap; + LinkAsmp.DownstreamPort = Downstream; + DownstreamCap = excel950_fun1 (Downstream, StdHeader); + LinkAsmp.UpstreamPort = Upstream; + UpstreamCap = excel950_fun1 (Upstream, StdHeader); + LinkAsmp.DownstreamAspm = DownstreamCap & UpstreamCap & Aspm & AspmL1; + LinkAsmp.UpstreamAspm = LinkAsmp.DownstreamAspm; + LinkAsmp.RequestedAspm = Aspm; + if ((UpstreamCap & Aspm & AspmL0s) != 0) { + LinkAsmp.UpstreamAspm |= AspmL0s; + } + if ((DownstreamCap & Aspm & AspmL0s) != 0) { + LinkAsmp.DownstreamAspm |= AspmL0s; + } + if (GnbBuildOptions.PcieAspmBlackListEnable == 1) { + PcieAspmBlackListFeature (&LinkAsmp, StdHeader); + if ((LinkAsmp.DownstreamAspm & AspmL0s) == 0) { + *AspmL0sBlackList = LinkAsmp.BlackList; + } + } + //AgesaPcieLinkAspm (&LinkAsmp, StdHeader); + IDS_HDT_CONSOLE (GNB_TRACE, " Set ASPM [%d] for Device = %d:%d:%d\n", + (LinkAsmp.UpstreamAspm) , + LinkAsmp.UpstreamPort.Address.Bus, + LinkAsmp.UpstreamPort.Address.Device, + LinkAsmp.UpstreamPort.Address.Function + ); + IDS_HDT_CONSOLE (GNB_TRACE, " Set ASPM [%d] for Device = %d:%d:%d\n", + (LinkAsmp.DownstreamAspm) , + LinkAsmp.DownstreamPort.Address.Bus, + LinkAsmp.DownstreamPort.Address.Device, + LinkAsmp.DownstreamPort.Address.Function + ); + // Disable ASPM Upstream component + excel950_fun5 (Upstream, AspmDisabled, StdHeader); + // Enable ASPM Donstream component + excel950_fun4 (Downstream, LinkAsmp.DownstreamAspm, StdHeader); + // Enable ASPM Upstream component + excel950_fun5 (Upstream, LinkAsmp.UpstreamAspm, StdHeader); +} + + + +PCIE_ASPM_TYPE +excel950_fun1 ( + IN PCI_ADDR Device, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT8 PcieCapPtr; + UINT32 Value; + PcieCapPtr = GnbLibFindPciCapability (Device.AddressValue, PCIE_CAP_ID, StdHeader); + if (PcieCapPtr == 0) { + return 0; + } + GnbLibPciRead ( + Device.AddressValue | (PcieCapPtr + PCIE_LINK_CAP_REGISTER), + AccessWidth32, + &Value, + StdHeader + ); + return (Value >> 10) & 3; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Callback to init various features on all active ports + * + * + * + * + * @param[in] Engine Pointer to engine config descriptor + * @param[in, out] Buffer Not used + * @param[in] Pcie Pointer to global PCIe configuration + * + */ + +VOID +STATIC +PcieAspmPortInitCallback ( + IN PCIe_ENGINE_CONFIG *Engine, + IN OUT VOID *Buffer, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + if (Engine->Type.Port.PortData.LinkAspm != AspmDisabled && + !PcieConfigIsSbPcieEngine (Engine) && + PcieConfigCheckPortStatus (Engine, INIT_STATUS_PCIE_TRAINING_SUCCESS)) { + excel950_fun2 ( + Engine->Type.Port.Address, + Engine->Type.Port.PortData.LinkAspm, + GnbLibGetHeader (Pcie) + ); + } +} + + +/**----------------------------------------------------------------------------------------*/ +/** + * Interface to enable Clock Power Managment + * + * + * + * @param[in] StdHeader Standard configuration header + * + * @retval AGESA_STATUS + */ + /*----------------------------------------------------------------------------------------*/ +AGESA_STATUS +PcieAspmInterface ( + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + AGESA_STATUS AgesaStatus; + PCIe_PLATFORM_CONFIG *Pcie; + IDS_HDT_CONSOLE (GNB_TRACE, "PcieAspmInterface Enter\n"); + AgesaStatus = PcieLocateConfigurationData (StdHeader, &Pcie); + if (AgesaStatus == AGESA_SUCCESS) { + PcieConfigRunProcForAllEngines ( + DESCRIPTOR_ALLOCATED | DESCRIPTOR_PCIE_ENGINE, + PcieAspmPortInitCallback, + NULL, + Pcie + ); + } + IDS_HDT_CONSOLE (GNB_TRACE, "PcieAspmInterface Exit [0x%x]\n", AgesaStatus); + return AgesaStatus; +} diff --git a/src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm/PcieAspm.h b/src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm/PcieAspm.h new file mode 100644 index 0000000000..1424a907c3 --- /dev/null +++ b/src/vendorcode/amd/agesa/f16kb/Proc/GNB/Modules/GnbPcieAspm/PcieAspm.h @@ -0,0 +1,63 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * PCIe link ASPM + * + * + * + * @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. +* *************************************************************************** +* +*/ + +#ifndef _PCIEASPM_H_ +#define _PCIEASPM_H_ + +VOID +excel950_fun2 ( + IN PCI_ADDR DownstreamPort, + IN PCIE_ASPM_TYPE Aspm, + IN AMD_CONFIG_PARAMS *StdHeader + ); + +VOID +excel950_fun4 ( + IN PCI_ADDR Function, + IN PCIE_ASPM_TYPE Aspm, + IN AMD_CONFIG_PARAMS *StdHeader + ); + +#endif |