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   1 /*
   2  * HvCallEvent.h
   3  * Copyright (C) 2001  Mike Corrigan IBM Corporation
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  18  */
  19 /*
  20  * This file contains the "hypervisor call" interface which is used to
  21  * drive the hypervisor from the OS.
  22  */
  23 #ifndef _HVCALLEVENT_H
  24 #define _HVCALLEVENT_H
  25
  26 #include <asm/iSeries/HvCallSc.h>
  27 #include <asm/iSeries/HvTypes.h>
  28 #include <asm/abs_addr.h>
  29
  30 struct HvLpEvent;
  31
  32 typedef u8 HvLpEvent_Type;
  33 typedef u8 HvLpEvent_AckInd;
  34 typedef u8 HvLpEvent_AckType;
  35
  36 struct  HvCallEvent_PackedParms {
  37         u8              xAckType:1;
  38         u8              xAckInd:1;
  39         u8              xRsvd:1;
  40         u8              xTargetLp:5;
  41         u8              xType;
  42         u16             xSubtype;
  43         HvLpInstanceId  xSourceInstId;
  44         HvLpInstanceId  xTargetInstId;
  45 };
  46
  47 typedef u8 HvLpDma_Direction;
  48 typedef u8 HvLpDma_AddressType;
  49
  50 struct  HvCallEvent_PackedDmaParms {
  51         u8              xDirection:1;
  52         u8              xLocalAddrType:1;
  53         u8              xRemoteAddrType:1;
  54         u8              xRsvd1:5;
  55         HvLpIndex       xRemoteLp;
  56         u8              xType;
  57         u8              xRsvd2;
  58         HvLpInstanceId  xLocalInstId;
  59         HvLpInstanceId  xRemoteInstId;
  60 };
  61
  62 typedef u64 HvLpEvent_Rc;
  63 typedef u64 HvLpDma_Rc;
  64
  65 #define HvCallEventAckLpEvent                           HvCallEvent +  0
  66 #define HvCallEventCancelLpEvent                        HvCallEvent +  1
  67 #define HvCallEventCloseLpEventPath                     HvCallEvent +  2
  68 #define HvCallEventDmaBufList                           HvCallEvent +  3
  69 #define HvCallEventDmaSingle                            HvCallEvent +  4
  70 #define HvCallEventDmaToSp                              HvCallEvent +  5
  71 #define HvCallEventGetOverflowLpEvents                  HvCallEvent +  6
  72 #define HvCallEventGetSourceLpInstanceId                HvCallEvent +  7
  73 #define HvCallEventGetTargetLpInstanceId                HvCallEvent +  8
  74 #define HvCallEventOpenLpEventPath                      HvCallEvent +  9
  75 #define HvCallEventSetLpEventStack                      HvCallEvent + 10
  76 #define HvCallEventSignalLpEvent                        HvCallEvent + 11
  77 #define HvCallEventSignalLpEventParms                   HvCallEvent + 12
  78 #define HvCallEventSetInterLpQueueIndex                 HvCallEvent + 13
  79 #define HvCallEventSetLpEventQueueInterruptProc         HvCallEvent + 14
  80 #define HvCallEventRouter15                             HvCallEvent + 15
  81
  82 static inline void HvCallEvent_getOverflowLpEvents(u8 queueIndex)
  83 {
  84         HvCall1(HvCallEventGetOverflowLpEvents, queueIndex);
  85 }
  86
  87 static inline void HvCallEvent_setInterLpQueueIndex(u8 queueIndex)
  88 {
  89         HvCall1(HvCallEventSetInterLpQueueIndex, queueIndex);
  90 }
  91
  92 static inline void HvCallEvent_setLpEventStack(u8 queueIndex,
  93                 char *eventStackAddr, u32 eventStackSize)
  94 {
  95         u64 abs_addr;
  96
  97         abs_addr = virt_to_abs(eventStackAddr);
  98         HvCall3(HvCallEventSetLpEventStack, queueIndex, abs_addr,
  99                         eventStackSize);
 100 }
 101
 102 static inline void HvCallEvent_setLpEventQueueInterruptProc(u8 queueIndex,
 103                 u16 lpLogicalProcIndex)
 104 {
 105         HvCall2(HvCallEventSetLpEventQueueInterruptProc, queueIndex,
 106                         lpLogicalProcIndex);
 107 }
 108
 109 static inline HvLpEvent_Rc HvCallEvent_signalLpEvent(struct HvLpEvent *event)
 110 {
 111         u64 abs_addr;
 112
 113 #ifdef DEBUG_SENDEVENT
 114         printk("HvCallEvent_signalLpEvent: *event = %016lx\n ",
 115                         (unsigned long)event);
 116 #endif
 117         abs_addr = virt_to_abs(event);
 118         return HvCall1(HvCallEventSignalLpEvent, abs_addr);
 119 }
 120
 121 static inline HvLpEvent_Rc HvCallEvent_signalLpEventFast(HvLpIndex targetLp,
 122                 HvLpEvent_Type type, u16 subtype, HvLpEvent_AckInd ackInd,
 123                 HvLpEvent_AckType ackType, HvLpInstanceId sourceInstanceId,
 124                 HvLpInstanceId targetInstanceId, u64 correlationToken,
 125                 u64 eventData1, u64 eventData2, u64 eventData3,
 126                 u64 eventData4, u64 eventData5)
 127 {
 128         /* Pack the misc bits into a single Dword to pass to PLIC */
 129         union {
 130                 struct HvCallEvent_PackedParms  parms;
 131                 u64             dword;
 132         } packed;
 133         packed.parms.xAckType   = ackType;
 134         packed.parms.xAckInd    = ackInd;
 135         packed.parms.xRsvd      = 0;
 136         packed.parms.xTargetLp  = targetLp;
 137         packed.parms.xType      = type;
 138         packed.parms.xSubtype   = subtype;
 139         packed.parms.xSourceInstId      = sourceInstanceId;
 140         packed.parms.xTargetInstId      = targetInstanceId;
 141
 142         return HvCall7(HvCallEventSignalLpEventParms, packed.dword,
 143                         correlationToken, eventData1, eventData2,
 144                         eventData3, eventData4, eventData5);
 145 }
 146
 147 static inline HvLpEvent_Rc HvCallEvent_ackLpEvent(struct HvLpEvent *event)
 148 {
 149         u64 abs_addr;
 150
 151         abs_addr = virt_to_abs(event);
 152         return HvCall1(HvCallEventAckLpEvent, abs_addr);
 153 }
 154
 155 static inline HvLpEvent_Rc HvCallEvent_cancelLpEvent(struct HvLpEvent *event)
 156 {
 157         u64 abs_addr;
 158
 159         abs_addr = virt_to_abs(event);
 160         return HvCall1(HvCallEventCancelLpEvent, abs_addr);
 161 }
 162
 163 static inline HvLpInstanceId HvCallEvent_getSourceLpInstanceId(
 164                 HvLpIndex targetLp, HvLpEvent_Type type)
 165 {
 166         return HvCall2(HvCallEventGetSourceLpInstanceId, targetLp, type);
 167 }
 168
 169 static inline HvLpInstanceId HvCallEvent_getTargetLpInstanceId(
 170                 HvLpIndex targetLp, HvLpEvent_Type type)
 171 {
 172         return HvCall2(HvCallEventGetTargetLpInstanceId, targetLp, type);
 173 }
 174
 175 static inline void HvCallEvent_openLpEventPath(HvLpIndex targetLp,
 176                 HvLpEvent_Type type)
 177 {
 178         HvCall2(HvCallEventOpenLpEventPath, targetLp, type);
 179 }
 180
 181 static inline void HvCallEvent_closeLpEventPath(HvLpIndex targetLp,
 182                 HvLpEvent_Type type)
 183 {
 184         HvCall2(HvCallEventCloseLpEventPath, targetLp, type);
 185 }
 186
 187 static inline HvLpDma_Rc HvCallEvent_dmaBufList(HvLpEvent_Type type,
 188                 HvLpIndex remoteLp, HvLpDma_Direction direction,
 189                 HvLpInstanceId localInstanceId,
 190                 HvLpInstanceId remoteInstanceId,
 191                 HvLpDma_AddressType localAddressType,
 192                 HvLpDma_AddressType remoteAddressType,
 193                 /* Do these need to be converted to absolute addresses? */
 194                 u64 localBufList, u64 remoteBufList, u32 transferLength)
 195 {
 196         /* Pack the misc bits into a single Dword to pass to PLIC */
 197         union {
 198                 struct HvCallEvent_PackedDmaParms       parms;
 199                 u64             dword;
 200         } packed;
 201
 202         packed.parms.xDirection         = direction;
 203         packed.parms.xLocalAddrType     = localAddressType;
 204         packed.parms.xRemoteAddrType    = remoteAddressType;
 205         packed.parms.xRsvd1             = 0;
 206         packed.parms.xRemoteLp          = remoteLp;
 207         packed.parms.xType              = type;
 208         packed.parms.xRsvd2             = 0;
 209         packed.parms.xLocalInstId       = localInstanceId;
 210         packed.parms.xRemoteInstId      = remoteInstanceId;
 211
 212         return HvCall4(HvCallEventDmaBufList, packed.dword, localBufList,
 213                         remoteBufList, transferLength);
 214 }
 215
 216 static inline HvLpDma_Rc HvCallEvent_dmaSingle(HvLpEvent_Type type,
 217                 HvLpIndex remoteLp, HvLpDma_Direction direction,
 218                 HvLpInstanceId localInstanceId,
 219                 HvLpInstanceId remoteInstanceId,
 220                 HvLpDma_AddressType localAddressType,
 221                 HvLpDma_AddressType remoteAddressType,
 222                 u64 localAddrOrTce, u64 remoteAddrOrTce, u32 transferLength)
 223 {
 224         /* Pack the misc bits into a single Dword to pass to PLIC */
 225         union {
 226                 struct HvCallEvent_PackedDmaParms       parms;
 227                 u64             dword;
 228         } packed;
 229
 230         packed.parms.xDirection         = direction;
 231         packed.parms.xLocalAddrType     = localAddressType;
 232         packed.parms.xRemoteAddrType    = remoteAddressType;
 233         packed.parms.xRsvd1             = 0;
 234         packed.parms.xRemoteLp          = remoteLp;
 235         packed.parms.xType              = type;
 236         packed.parms.xRsvd2             = 0;
 237         packed.parms.xLocalInstId       = localInstanceId;
 238         packed.parms.xRemoteInstId      = remoteInstanceId;
 239
 240         return (HvLpDma_Rc)HvCall4(HvCallEventDmaSingle, packed.dword,
 241                         localAddrOrTce, remoteAddrOrTce, transferLength);
 242 }
 243
 244 static inline HvLpDma_Rc HvCallEvent_dmaToSp(void *local, u32 remote,
 245                 u32 length, HvLpDma_Direction dir)
 246 {
 247         u64 abs_addr;
 248
 249         abs_addr = virt_to_abs(local);
 250         return HvCall4(HvCallEventDmaToSp, abs_addr, remote, length, dir);
 251 }
 252
 253 #endif /* _HVCALLEVENT_H */