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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Google Inc.
* Copyright (C) 2015 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/*
* Calculate PCR register base at specified PID
* Arg0 - PCR Port ID
*/
Method (PCRB, 1, NotSerialized)
{
Return (Add (PCH_PCR_BASE_ADDRESS, ShiftLeft (Arg0, PCR_PORTID_SHIFT)))
}
/*
* Read a PCR register at specified PID and offset
* Arg0 - PCR Port ID
* Arg1 - Register Offset
*/
Method (PCRR, 2, Serialized)
{
OperationRegion (PCRD, SystemMemory, Add (PCRB (Arg0), Arg1), 4)
Field (PCRD, DWordAcc, NoLock, Preserve)
{
DATA, 32
}
Return (DATA)
}
/*
* AND a value with PCR register at specified PID and offset
* Arg0 - PCR Port ID
* Arg1 - Register Offset
* Arg2 - Value to AND
*/
Method (PCRA, 3, Serialized)
{
OperationRegion (PCRD, SystemMemory, Add (PCRB (Arg0), Arg1), 4)
Field (PCRD, DWordAcc, NoLock, Preserve)
{
DATA, 32
}
And (DATA, Arg2, DATA)
}
/*
* OR a value with PCR register at specified PID and offset
* Arg0 - PCR Port ID
* Arg1 - Register Offset
* Arg2 - Value to OR
*/
Method (PCRO, 3, Serialized)
{
OperationRegion (PCRD, SystemMemory, Add (PCRB (Arg0), Arg1), 4)
Field (PCRD, DWordAcc, NoLock, Preserve)
{
DATA, 32
}
Or (DATA, Arg2, DATA)
}
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