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hv_call.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 _ASM_POWERPC_ISERIES_HV_CALL_H
#define _ASM_POWERPC_ISERIES_HV_CALL_H

#include <asm/iseries/hv_call_sc.h>
#include <asm/iseries/hv_types.h>
#include <asm/paca.h>

/* 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_setLogBufferFormatAndCodepage(int format,
            u32 codePage)
{
      HvCall2(HvCallBaseSetLogBufferFormatAndCodePage, format, codePage);
}

extern void HvCall_writeLogBuffer(const void *buffer, u64 bufLen);

static inline void HvCall_sendIPI(struct paca_struct *targetPaca)
{
      HvCall1(HvCallBaseSendIPI, targetPaca->paca_index);
}

#endif /* _ASM_POWERPC_ISERIES_HV_CALL_H */

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