diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/GNB/Modules/GnbPcieInitLibV1/PcieUtilityLib.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/GNB/Modules/GnbPcieInitLibV1/PcieUtilityLib.c | 437 |
1 files changed, 437 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/GNB/Modules/GnbPcieInitLibV1/PcieUtilityLib.c b/src/vendorcode/amd/agesa/f14/Proc/GNB/Modules/GnbPcieInitLibV1/PcieUtilityLib.c new file mode 100644 index 0000000000..ef868203dd --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/GNB/Modules/GnbPcieInitLibV1/PcieUtilityLib.c @@ -0,0 +1,437 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * PCIe utility. Various supporting functions. + * + * + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: GNB + * @e \$Revision: 38931 $ @e \$Date: 2010-10-01 15:50:05 -0700 (Fri, 01 Oct 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. + * + * *************************************************************************** + * + */ + +/*---------------------------------------------------------------------------------------- + * 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 GNB_MODULE_DEFINITIONS (GnbCommonLib) +#include GNB_MODULE_DEFINITIONS (GnbPcieConfig) +#include GNB_MODULE_DEFINITIONS (GnbPcieInitLibV1) +#include "GnbRegistersON.h" +#include "Filecode.h" +#define FILECODE PROC_GNB_MODULES_GNBPCIEINITLIBV1_PCIEUTILITYLIB_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 + *---------------------------------------------------------------------------------------- + */ +typedef struct { + UINT32 Flags; + PCIE_LINK_SPEED_CAP LinkSpeedCapability; +} PCIE_GLOBAL_GEN_CAP_WORKSPACE; + +/*---------------------------------------------------------------------------------------- + * 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 + *---------------------------------------------------------------------------------------- + */ + +/*----------------------------------------------------------------------------------------*/ +/** + * Get link state history from HW state machine + * + * + * + * @param[in] Engine Pointer to engine config descriptor + * @param[out] History Buffer to save history + * @param[in] Length Buffer length + * @param[in] Pcie Pointer to global PCIe configuration + */ + +VOID +PcieUtilGetLinkHwStateHistory ( + IN PCIe_ENGINE_CONFIG *Engine, + OUT UINT8 *History, + IN UINT8 Length, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINT8 ReadLength; + UINT32 LocalHistory [6]; + UINT16 Index; + ASSERT (Length <= 16); + ASSERT (Length > 0); + if (Length > 6*4) { + Length = 6*4; + } + ReadLength = (Length + 3) / 4; + for (Index = 0; Index < ReadLength; Index++) { + LocalHistory[Index] = PciePortRegisterRead ( + Engine, + DxF0xE4_xA5_ADDRESS + Index, + Pcie + ); + } + LibAmdMemCopy (History, LocalHistory, Length, GnbLibGetHeader (Pcie)); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Search array for specific pattern + * + * + * @param[in] Buf1 Pointer to source buffer which will be subject of search + * @param[in] Buf1Length Length of the source buffer + * @param[in] Buf2 Pointer to pattern buffer + * @param[in] Buf2Length Length of the pattern buffer + * @retval TRUE Pattern found + * @retval TRUE Pattern not found + */ + +BOOLEAN +PcieUtilSearchArray ( + IN UINT8 *Buf1, + IN UINTN Buf1Length, + IN UINT8 *Buf2, + IN UINTN Buf2Length + ) +{ + UINT8 *CurrentBuf1Ptr; + CurrentBuf1Ptr = Buf1; + while (CurrentBuf1Ptr < (Buf1 + Buf1Length - Buf2Length)) { + UINT8 *SourceBufPtr; + UINT8 *PatternBufPtr; + UINTN PatternBufLength; + SourceBufPtr = CurrentBuf1Ptr; + PatternBufPtr = Buf2; + PatternBufLength = Buf2Length; + while ((*SourceBufPtr++ == *PatternBufPtr++) && (PatternBufLength-- != 0)); + if (PatternBufLength == 0) { + return TRUE; + } + CurrentBuf1Ptr++; + } + return FALSE; +} + + +/*----------------------------------------------------------------------------------------*/ +/** + * Check if link reversed + * + * + * @param[in] HwLinkState Check for HW auto link reversal + * @param[in] Engine Pointer to engine config descriptor + * @param[in] Pcie Pointer to PCIe config descriptor + * @retval TRUE if link reversed + */ +BOOLEAN +PcieUtilIsLinkReversed ( + IN BOOLEAN HwLinkState, + IN PCIe_ENGINE_CONFIG *Engine, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINT32 LinkReversal; + + LinkReversal = (Engine->EngineData.StartLane > Engine->EngineData.EndLane) ? 1 : 0; + if (HwLinkState) { + DxF0xE4_x50_STRUCT DxF0xE4_x50; + DxF0xE4_x50.Value = PciePortRegisterRead ( + Engine, + DxF0xE4_x50_ADDRESS, + Pcie + ); + LinkReversal ^= DxF0xE4_x50.Field.PortLaneReversal; + } + return ((LinkReversal & BIT0) != 0) ? TRUE : FALSE; +} + + +/*----------------------------------------------------------------------------------------*/ +/** + * Get link width detected during training + * + * + * + * @param[in] Engine Pointer to engine config descriptor + * @param[in] Pcie Pointer to global PCIe configuration + * @retval Link width + */ +UINT8 +PcieUtilGetLinkWidth ( + IN PCIe_ENGINE_CONFIG *Engine, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINT8 LinkWidth; + DxF0xE4_xA2_STRUCT DxF0xE4_xA2; + DxF0xE4_xA2.Value = PciePortRegisterRead ( + Engine, + DxF0xE4_xA2_ADDRESS, + Pcie + ); + switch (DxF0xE4_xA2.Field.LcLinkWidthRd) { + case 0x6: + LinkWidth = 16; + break; + case 0x5: + LinkWidth = 12; + break; + case 0x4: + LinkWidth = 8; + break; + case 0x3: + LinkWidth = 4; + break; + case 0x2: + LinkWidth = 2; + break; + case 0x1: + LinkWidth = 1; + break; + default: + LinkWidth = 0; + } + return LinkWidth; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Get bitmap of engine lane of requested type + * + * + * @param[in] IncludeLaneType Include Lane type + * @param[in] ExcludeLaneType Exclude Lane type + * @param[in] Engine Pointer to engine config descriptor + * @param[in] Pcie Pointer to global PCIe configuration + * @retval Lane bitmap + */ + +UINT32 +PcieUtilGetEngineLaneBitMap ( + IN UINT32 IncludeLaneType, + IN UINT32 ExcludeLaneType, + IN PCIe_ENGINE_CONFIG *Engine, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINT32 LaneBitmap; + UINT16 LaneOffset; + LaneBitmap = 0; + if ((IncludeLaneType & LANE_TYPE_PCIE_LANES) && Engine->EngineData.EngineType == PciePortEngine) { + if (IncludeLaneType & LANE_TYPE_PCIE_ALL) { + LaneBitmap |= (((1 << PcieConfigGetNumberOfCoreLane (Engine)) - 1) << Engine->Type.Port.StartCoreLane); + } + if (PcieLibIsEngineAllocated (Engine)) { + if (IncludeLaneType & LANE_TYPE_PCIE_ALLOCATED) { + LaneBitmap |= (((1 << PcieConfigGetNumberOfPhyLane (Engine)) - 1) << Engine->Type.Port.StartCoreLane); + } + if (IncludeLaneType & LANE_TYPE_PCIE_ACTIVE) { + if (Engine->Type.Port.PortData.LinkHotplug == HotplugEnhanced) { + LaneBitmap |= PcieUtilGetEngineLaneBitMap (LANE_TYPE_PCIE_ALLOCATED, 0, Engine, Pcie); + } else if (PcieConfigCheckPortStatus (Engine, INIT_STATUS_PCIE_PORT_IN_COMPLIANCE)) { + LaneBitmap |= PcieUtilGetEngineLaneBitMap (LANE_TYPE_PCIE_ALLOCATED, 0, Engine, Pcie); + } else if (PcieConfigCheckPortStatus (Engine, INIT_STATUS_PCIE_TRAINING_SUCCESS)) { + UINT8 LinkWidth; + BOOLEAN LinkReversed; + LinkWidth = PcieUtilGetLinkWidth (Engine, Pcie); + if (LinkWidth > PcieConfigGetNumberOfPhyLane (Engine)) { + LinkWidth = PcieConfigGetNumberOfPhyLane (Engine); + } + LinkReversed = PcieUtilIsLinkReversed (TRUE, Engine, Pcie); + LaneOffset = LinkReversed ? (Engine->Type.Port.EndCoreLane - LinkWidth + 1) : Engine->Type.Port.StartCoreLane; + LaneBitmap |= (((1 << LinkWidth) - 1) << LaneOffset); + } + } + if (IncludeLaneType & LANE_TYPE_PCIE_SB) { + if (Engine->Type.Port.IsSB) { + LaneBitmap |= PcieUtilGetEngineLaneBitMap (LANE_TYPE_PCIE_ACTIVE, 0, Engine, Pcie); + IDS_HDT_CONSOLE (GNB_TRACE, "SB Lane Bitmap is 0x%x\n", LaneBitmap); + } + } + if (IncludeLaneType & LANE_TYPE_PCIE_HOTPLUG) { + if (Engine->Type.Port.PortData.LinkHotplug != HotplugDisabled) { + LaneBitmap |= PcieUtilGetEngineLaneBitMap (LANE_TYPE_PCIE_ALLOCATED, 0, Engine, Pcie); + } + } + } + } + if ((IncludeLaneType & LANE_TYPE_DDI_LANES) && Engine->EngineData.EngineType == PcieDdiEngine) { + if (PcieLibIsEngineAllocated (Engine)) { + if (IncludeLaneType & (LANE_TYPE_DDI_ALLOCATED | LANE_TYPE_DDI_ALL)) { + LaneOffset = PcieUtilGetLoPhyLane (Engine) - PcieEngineGetParentWrapper (Engine)->StartPhyLane; + LaneBitmap |= ((1 << PcieConfigGetNumberOfPhyLane (Engine)) - 1) << LaneOffset; + } + if (IncludeLaneType & LANE_TYPE_DDI_ACTIVE) { + if (Engine->InitStatus & INIT_STATUS_DDI_ACTIVE) { + LaneBitmap |= PcieUtilGetEngineLaneBitMap (LANE_TYPE_DDI_ALL, 0, Engine, Pcie); + } + } + } + } + if (ExcludeLaneType != 0) { + LaneBitmap &= (~PcieUtilGetEngineLaneBitMap (ExcludeLaneType, 0, Engine, Pcie)); + } + return LaneBitmap; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Get bitmap of Wrapper lane of requested type + * + * + * @param[in] IncludeLaneType Include Lane type + * @param[in] ExcludeLaneType Exclude Lane type + * @param[in] Wrapper Pointer to wrapper config descriptor + * @param[in] Pcie Pointer to PCIe config descriptor + * @retval Lane bitmap + */ + +UINT32 +PcieUtilGetWrapperLaneBitMap ( + IN UINT32 IncludeLaneType, + IN UINT32 ExcludeLaneType, + IN PCIe_WRAPPER_CONFIG *Wrapper, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + PCIe_ENGINE_CONFIG *EngineList; + UINT32 LaneBitmap; + EngineList = PcieWrapperGetEngineList (Wrapper); + LaneBitmap = 0; + if ((IncludeLaneType | ExcludeLaneType) != 0) { + if ((IncludeLaneType & LANE_TYPE_ALL) == LANE_TYPE_ALL) { + LaneBitmap = (1 << (Wrapper->EndPhyLane - Wrapper->StartPhyLane + 1)) - 1; + if (ExcludeLaneType != 0) { + LaneBitmap &= (~PcieUtilGetWrapperLaneBitMap (ExcludeLaneType, 0, Wrapper, Pcie)); + } + } else { + while (EngineList != NULL) { + LaneBitmap |= PcieUtilGetEngineLaneBitMap (IncludeLaneType, ExcludeLaneType, EngineList, Pcie); + EngineList = PcieLibGetNextDescriptor (EngineList); + } + } + } + return LaneBitmap; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Program port register table + * + * + * + * @param[in] Table Pointer to table + * @param[in] Length number of entries + * @param[in] Engine Pointer to engine config descriptor + * @param[in] S3Save Save for S3 flag + * @param[in] Pcie Pointer to global PCIe configuration + * + */ + +VOID +PciePortProgramRegisterTable ( + IN PCIE_PORT_REGISTER_ENTRY *Table, + IN UINTN Length, + IN PCIe_ENGINE_CONFIG *Engine, + IN BOOLEAN S3Save, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINTN Index; + UINT32 Value; + for (Index = 0; Index < Length; Index++) { + Value = PciePortRegisterRead ( + Engine, + Table[Index].Reg, + Pcie + ); + Value &= (~Table[Index].Mask); + Value |= Table[Index].Data; + PciePortRegisterWrite ( + Engine, + Table[Index].Reg, + Value, + S3Save, + Pcie + ); + } +} + + +/*----------------------------------------------------------------------------------------*/ +/** + * Lock registers + * + * + * @param[in] Wrapper Pointer to wrapper config descriptor + * @param[in] Pcie Pointer to global PCIe configuration + */ + +VOID +PcieLockRegisters ( + IN PCIe_WRAPPER_CONFIG *Wrapper, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINT8 CoreId; + IDS_HDT_CONSOLE (GNB_TRACE, "PcieLockRegisters Enter\n"); + if (PcieLibIsPcieWrapper (Wrapper)) { + for (CoreId = Wrapper->StartPcieCoreId; CoreId <= Wrapper->EndPcieCoreId; CoreId++) { + PcieRegisterWriteField ( + Wrapper, + CORE_SPACE (CoreId, 0x10), + 0, + 1, + 0x1, + TRUE, + Pcie + ); + } + } + IDS_HDT_CONSOLE (GNB_TRACE, "PcieLockRegisters Exit\n"); +} |