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/**
* @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
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