diff options
Diffstat (limited to 'Core/MdePkg/Library/BaseLib/Ipf/AccessGcr.s')
| -rw-r--r-- | Core/MdePkg/Library/BaseLib/Ipf/AccessGcr.s | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/BaseLib/Ipf/AccessGcr.s b/Core/MdePkg/Library/BaseLib/Ipf/AccessGcr.s new file mode 100644 index 0000000000..d519e7d0f5 --- /dev/null +++ b/Core/MdePkg/Library/BaseLib/Ipf/AccessGcr.s @@ -0,0 +1,274 @@ +/// @file
+/// IPF specific Global Control Registers accessing functions
+///
+/// Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+/// This program and the accompanying materials
+/// are licensed and made available under the terms and conditions of the BSD License
+/// which accompanies this distribution. The full text of the license may be found at
+/// http://opensource.org/licenses/bsd-license.php.
+///
+/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+///
+/// Module Name: AccessGcr.s
+///
+///
+
+//---------------------------------------------------------------------------------
+//++
+// AsmReadDcr
+//
+// This routine is used to Read the value of Default Control Register (DCR).
+//
+// Arguments :
+//
+// On Entry :
+//
+// Return Value: The current value of DCR.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmReadDcr, @function
+.proc AsmReadDcr
+
+AsmReadDcr::
+ mov r8 = cr.dcr;;
+ br.ret.dpnt b0;;
+.endp AsmReadDcr
+
+//---------------------------------------------------------------------------------
+//++
+// AsmWriteDcr
+//
+// This routine is used to write the value to Default Control Register (DCR).
+//
+// Arguments :
+//
+// On Entry : The value need to be written to DCR
+//
+// Return Value: The value written to DCR.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmWriteDcr, @function
+.proc AsmWriteDcr
+.regstk 1, 0, 0, 0
+
+AsmWriteDcr::
+ mov cr.dcr = in0
+ mov r8 = in0;;
+ srlz.i;;
+ srlz.d;;
+ br.ret.dpnt b0;;
+.endp AsmWriteDcr
+
+
+//---------------------------------------------------------------------------------
+//++
+// AsmReadItc
+//
+// This routine is used to Read the value of Interval Timer Counter Register (ITC).
+//
+// Arguments :
+//
+// On Entry :
+//
+// Return Value: The current value of ITC.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmReadItc, @function
+.proc AsmReadItc
+
+AsmReadItc::
+ mov r8 = ar.itc;;
+ br.ret.dpnt b0;;
+.endp AsmReadItc
+
+//---------------------------------------------------------------------------------
+//++
+// AsmWriteItc
+//
+// This routine is used to write the value to Interval Timer Counter Register (ITC).
+//
+// Arguments :
+//
+// On Entry : The value need to be written to the ITC
+//
+// Return Value: The value written to the ITC.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmWriteItc, @function
+.proc AsmWriteItc
+.regstk 1, 0, 0, 0
+
+AsmWriteItc::
+ mov ar.itc = in0
+ mov r8 = in0;;
+ br.ret.dpnt b0;;
+.endp AsmWriteItc
+
+
+//---------------------------------------------------------------------------------
+//++
+// AsmReadItm
+//
+// This routine is used to Read the value of Interval Timer Match Register (ITM).
+//
+// Arguments :
+//
+// On Entry :
+//
+// Return Value: The current value of ITM.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmReadItm, @function
+.proc AsmReadItm
+
+AsmReadItm::
+ mov r8 = cr.itm;;
+ br.ret.dpnt b0;;
+.endp AsmReadItm
+
+//---------------------------------------------------------------------------------
+//++
+// AsmWriteItm
+//
+// This routine is used to write the value to Interval Timer Match Register (ITM).
+//
+// Arguments :
+//
+// On Entry : The value need to be written to ITM
+//
+// Return Value: The value written to ITM.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmWriteItm, @function
+.proc AsmWriteItm
+.regstk 1, 0, 0, 0
+
+AsmWriteItm::
+ mov cr.itm = in0
+ mov r8 = in0;;
+ srlz.d;
+ br.ret.dpnt b0;;
+.endp AsmWriteItm
+
+
+//---------------------------------------------------------------------------------
+//++
+// AsmReadIva
+//
+// This routine is used to read the value of Interruption Vector Address Register (IVA).
+//
+// Arguments :
+//
+// On Entry :
+//
+// Return Value: The current value of IVA.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmReadIva, @function
+.proc AsmReadIva
+
+AsmReadIva::
+ mov r8 = cr.iva;;
+ br.ret.dpnt b0;;
+.endp AsmReadIva
+
+//---------------------------------------------------------------------------------
+//++
+// AsmWriteIva
+//
+// This routine is used to write the value to Interruption Vector Address Register (IVA).
+//
+// Arguments :
+//
+// On Entry : The value need to be written to IVA
+//
+// Return Value: The value written to IVA.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmWriteIva, @function
+.proc AsmWriteIva
+.regstk 1, 3, 0, 0
+
+AsmWriteIva::
+ alloc loc1=ar.pfs,1,4,0,0 ;;
+
+ mov loc2 = psr
+ rsm 0x6000 // Make sure interrupts are masked
+
+ mov cr.iva = in0
+ srlz.i;;
+ mov psr.l = loc2;;
+ srlz.i;;
+ srlz.d;;
+ mov ar.pfs=loc1 ;;
+ mov r8 = in0;;
+ br.ret.dpnt b0;;
+.endp AsmWriteIva
+
+
+//---------------------------------------------------------------------------------
+//++
+// AsmReadPta
+//
+// This routine is used to read the value of Page Table Address Register (PTA).
+//
+// Arguments :
+//
+// On Entry :
+//
+// Return Value: The current value of PTA.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmReadPta, @function
+.proc AsmReadPta
+
+AsmReadPta::
+ mov r8 = cr.pta;;
+ br.ret.dpnt b0;;
+.endp AsmReadPta
+
+//---------------------------------------------------------------------------------
+//++
+// AsmWritePta
+//
+// This routine is used to write the value to Page Table Address Register (PTA)).
+//
+// Arguments :
+//
+// On Entry : The value need to be written to PTA
+//
+// Return Value: The value written to PTA.
+//
+//--
+//----------------------------------------------------------------------------------
+.text
+.type AsmWritePta, @function
+.proc AsmWritePta
+.regstk 1, 0, 0, 0
+
+AsmWritePta::
+ mov cr.pta = in0
+ mov r8 = in0;;
+ srlz.i;;
+ srlz.d;;
+ br.ret.dpnt b0;;
+.endp AsmWritePta
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