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diff --git a/include/asm-ppc64/iSeries/HvCall.h b/include/asm-ppc64/iSeries/HvCall.h
new file mode 100644
index 000000000000..d9a2e74e2399
--- /dev/null
+++ b/include/asm-ppc64/iSeries/HvCall.h
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+/*
+ * HvCall.h
+ * Copyright (C) 2001 Mike Corrigan IBM 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+//===========================================================================
+//
+// This file contains the "hypervisor call" interface which is used to
+// drive the hypervisor from the OS.
+//
+//===========================================================================
+#ifndef _HVCALL_H
+#define _HVCALL_H
+
+//-------------------------------------------------------------------
+// Standard Includes
+//-------------------------------------------------------------------
+#include <asm/iSeries/HvCallSc.h>
+#include <asm/iSeries/HvTypes.h>
+#include <asm/paca.h>
+
+/*
+enum HvCall_ReturnCode
+{
+ HvCall_Good = 0,
+ HvCall_Partial = 1,
+ HvCall_NotOwned = 2,
+ HvCall_NotFreed = 3,
+ HvCall_UnspecifiedError = 4
+};
+
+enum HvCall_TypeOfSIT
+{
+ HvCall_ReduceOnly = 0,
+ HvCall_Unconditional = 1
+};
+
+enum HvCall_TypeOfYield
+{
+ HvCall_YieldTimed = 0, // Yield until specified time
+ HvCall_YieldToActive = 1, // Yield until all active procs have run
+ HvCall_YieldToProc = 2 // Yield until the specified processor has run
+};
+
+enum HvCall_InterruptMasks
+{
+ HvCall_MaskIPI = 0x00000001,
+ HvCall_MaskLpEvent = 0x00000002,
+ HvCall_MaskLpProd = 0x00000004,
+ HvCall_MaskTimeout = 0x00000008
+};
+
+enum HvCall_VaryOffChunkRc
+{
+ HvCall_VaryOffSucceeded = 0,
+ HvCall_VaryOffWithdrawn = 1,
+ HvCall_ChunkInLoadArea = 2,
+ HvCall_ChunkInHPT = 3,
+ HvCall_ChunkNotAccessible = 4,
+ HvCall_ChunkInUse = 5
+};
+*/
+
+/* Type of yield for HvCallBaseYieldProcessor */
+#define HvCall_YieldTimed 0 // Yield until specified time (tb)
+#define HvCall_YieldToActive 1 // Yield until all active procs have run
+#define HvCall_YieldToProc 2 // Yield until the specified processor has run
+
+/* interrupt masks for setEnabledInterrupts */
+#define HvCall_MaskIPI 0x00000001
+#define HvCall_MaskLpEvent 0x00000002
+#define HvCall_MaskLpProd 0x00000004
+#define HvCall_MaskTimeout 0x00000008
+
+/* Log buffer formats */
+#define HvCall_LogBuffer_ASCII 0
+#define HvCall_LogBuffer_EBCDIC 1
+
+#define HvCallBaseAckDeferredInts HvCallBase + 0
+#define HvCallBaseCpmPowerOff HvCallBase + 1
+#define HvCallBaseGetHwPatch HvCallBase + 2
+#define HvCallBaseReIplSpAttn HvCallBase + 3
+#define HvCallBaseSetASR HvCallBase + 4
+#define HvCallBaseSetASRAndRfi HvCallBase + 5
+#define HvCallBaseSetIMR HvCallBase + 6
+#define HvCallBaseSendIPI HvCallBase + 7
+#define HvCallBaseTerminateMachine HvCallBase + 8
+#define HvCallBaseTerminateMachineSrc HvCallBase + 9
+#define HvCallBaseProcessPlicInterrupts HvCallBase + 10
+#define HvCallBaseIsPrimaryCpmOrMsdIpl HvCallBase + 11
+#define HvCallBaseSetVirtualSIT HvCallBase + 12
+#define HvCallBaseVaryOffThisProcessor HvCallBase + 13
+#define HvCallBaseVaryOffMemoryChunk HvCallBase + 14
+#define HvCallBaseVaryOffInteractivePercentage HvCallBase + 15
+#define HvCallBaseSendLpProd HvCallBase + 16
+#define HvCallBaseSetEnabledInterrupts HvCallBase + 17
+#define HvCallBaseYieldProcessor HvCallBase + 18
+#define HvCallBaseVaryOffSharedProcUnits HvCallBase + 19
+#define HvCallBaseSetVirtualDecr HvCallBase + 20
+#define HvCallBaseClearLogBuffer HvCallBase + 21
+#define HvCallBaseGetLogBufferCodePage HvCallBase + 22
+#define HvCallBaseGetLogBufferFormat HvCallBase + 23
+#define HvCallBaseGetLogBufferLength HvCallBase + 24
+#define HvCallBaseReadLogBuffer HvCallBase + 25
+#define HvCallBaseSetLogBufferFormatAndCodePage HvCallBase + 26
+#define HvCallBaseWriteLogBuffer HvCallBase + 27
+#define HvCallBaseRouter28 HvCallBase + 28
+#define HvCallBaseRouter29 HvCallBase + 29
+#define HvCallBaseRouter30 HvCallBase + 30
+#define HvCallBaseSetDebugBus HvCallBase + 31
+
+#define HvCallCcSetDABR HvCallCc + 7
+
+//=====================================================================================
+static inline void HvCall_setVirtualDecr(void)
+{
+ /* Ignore any error return codes - most likely means that the target value for the
+ * LP has been increased and this vary off would bring us below the new target. */
+ HvCall0(HvCallBaseSetVirtualDecr);
+}
+//=====================================================================
+static inline void HvCall_yieldProcessor(unsigned typeOfYield, u64 yieldParm)
+{
+ HvCall2( HvCallBaseYieldProcessor, typeOfYield, yieldParm );
+}
+//=====================================================================
+static inline void HvCall_setEnabledInterrupts(u64 enabledInterrupts)
+{
+ HvCall1(HvCallBaseSetEnabledInterrupts,enabledInterrupts);
+}
+
+//=====================================================================
+static inline void HvCall_clearLogBuffer(HvLpIndex lpindex)
+{
+ HvCall1(HvCallBaseClearLogBuffer,lpindex);
+}
+
+//=====================================================================
+static inline u32 HvCall_getLogBufferCodePage(HvLpIndex lpindex)
+{
+ u32 retVal = HvCall1(HvCallBaseGetLogBufferCodePage,lpindex);
+ return retVal;
+}
+
+//=====================================================================
+static inline int HvCall_getLogBufferFormat(HvLpIndex lpindex)
+{
+ int retVal = HvCall1(HvCallBaseGetLogBufferFormat,lpindex);
+ return retVal;
+}
+
+//=====================================================================
+static inline u32 HvCall_getLogBufferLength(HvLpIndex lpindex)
+{
+ u32 retVal = HvCall1(HvCallBaseGetLogBufferLength,lpindex);
+ return retVal;
+}
+
+//=====================================================================
+static inline void HvCall_setLogBufferFormatAndCodepage(int format, u32 codePage)
+{
+ HvCall2(HvCallBaseSetLogBufferFormatAndCodePage,format, codePage);
+}
+
+//=====================================================================
+int HvCall_readLogBuffer(HvLpIndex lpindex, void *buffer, u64 bufLen);
+void HvCall_writeLogBuffer(const void *buffer, u64 bufLen);
+
+//=====================================================================
+static inline void HvCall_sendIPI(struct paca_struct * targetPaca)
+{
+ HvCall1( HvCallBaseSendIPI, targetPaca->paca_index );
+}
+
+//=====================================================================
+static inline void HvCall_terminateMachineSrc(void)
+{
+ HvCall0( HvCallBaseTerminateMachineSrc );
+}
+
+static inline void HvCall_setDABR(unsigned long val)
+{
+ HvCall1(HvCallCcSetDABR, val);
+}
+
+static inline void HvCall_setDebugBus(unsigned long val)
+{
+ HvCall1(HvCallBaseSetDebugBus, val);
+}
+
+#endif /* _HVCALL_H */