| /** |
| * @file |
| * |
| * ASPM support. |
| * |
| * |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: CIMx-NB |
| * @e sub-project: |
| * @e \$Revision:$ @e \$Date:$ |
| * |
| */ |
| /***************************************************************************** |
| * |
| * 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. |
| * |
| * |
| ***************************************************************************/ |
| #ifndef _NBPCIEASPM_H_ |
| #define _NBPCIEASPM_H_ |
| |
| VOID |
| PcieAsmpEnableOnPort ( |
| IN PORT PortId, |
| IN PCIE_LINK_ASPM AsmpState, |
| IN AMD_NB_CONFIG *pConfig |
| ); |
| |
| UINT8 |
| PcieAspmGetPmCapability ( |
| IN PCI_ADDR Device, |
| IN AMD_NB_CONFIG *pConfig |
| ); |
| |
| |
| VOID |
| PcieAspmEnableOnDevice ( |
| IN PCI_ADDR Device, |
| IN UINT8 Lx, |
| IN AMD_NB_CONFIG *pConfig |
| ); |
| |
| VOID |
| PcieAspmEnableOnFunction ( |
| IN PCI_ADDR Function, |
| IN UINT8 Lx, |
| IN AMD_NB_CONFIG *pConfig |
| ); |
| |
| VOID |
| PcieAspmEnableOnLink ( |
| IN PCI_ADDR Downstream, |
| IN PCI_ADDR Upstream, |
| IN UINT8 Lx, |
| IN AMD_NB_CONFIG *pConfig |
| ); |
| |
| VOID |
| PcieAspmEnableCommonClock ( |
| IN PCI_ADDR Downstream, |
| IN PCI_ADDR Upstream, |
| IN AMD_NB_CONFIG *pConfig |
| ); |
| |
| |
| VOID |
| PcieAspmCommonClockOnDevice ( |
| IN PCI_ADDR Device, |
| IN AMD_NB_CONFIG *pConfig |
| ); |
| |
| VOID |
| PcieAspmCommonClockOnFunction ( |
| IN PCI_ADDR Function, |
| IN AMD_NB_CONFIG *pConfig |
| ); |
| |
| #pragma pack (push, 1) |
| |
| /// Framework for ASPM enable |
| typedef struct { |
| PCI_SCAN_PROTOCOL ScanPciePort; ///< PCI scan protocol |
| PCI_ADDR DownstreamPort; ///< Downstream port to enable ASPM |
| UINT8 MaxL0sLatency; ///< TBD |
| UINT8 MaxL1Latency; ///< TBD |
| UINT8 LinkCount; ///< TBD |
| UINT8 Lx; ///< ASPM state to enable |
| } ASPM_WORKSPACE; |
| |
| #define ASPM_UPSTREAM_L0s BIT2 |
| #define ASPM_DOWNSTREAM_L0s BIT3 |
| #define ASPM_L1 BIT1 |
| #define ASPM_L0s BIT0 |
| |
| /// Framework for callback ASPM capability callback |
| typedef struct { |
| PCI_ADDR DownstreamPort; ///< Downstream port PCI address to enable ASPM |
| PCI_ADDR UpstreamPort; ///< Upstream port PCI address to enable ASPM |
| UINT8 DownstreamLxCap; ///< Downstream port ASPM capability |
| UINT8 UpstreamLxCap; ///< Upstream port ASPM capability |
| UINT8 DownstreamLx; ///< Downstream port ASPM setting |
| UINT8 UpstreamLx; ///< Upstream port ASPM setting |
| UINT8 RequestedLx; ///< Requested port ASPM setting |
| } ASPM_LINK_INFO; |
| |
| #pragma pack (pop) |
| #endif |