1 files changed, 144 insertions, 0 deletions

diff --git a/include/asm-ppc64/iSeries/HvLpEvent.h b/include/asm-ppc64/iSeries/HvLpEvent.h
new file mode 100644
index 000000000000..30936e433064
--- /dev/null
+++ b/include/asm-ppc64/iSeries/HvLpEvent.h
@@ -0,0 +1,144 @@
+/*
+ * HvLpEvent.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 class for HV events in the system.
+//
+//=====================================================================
+#ifndef _HVLPEVENT_H
+#define _HVLPEVENT_H
+
+#include <asm/types.h>
+#include <asm/ptrace.h>
+#include <asm/iSeries/HvTypes.h>
+#include <asm/iSeries/HvCallEvent.h>
+
+//=====================================================================
+//
+// HvLpEvent is the structure for Lp Event messages passed between
+// partitions through PLIC. 
+//
+//=====================================================================
+
+struct HvEventFlags
+{
+        u8      xValid:1;               // Indicates a valid request    x00-x00
+        u8      xRsvd1:4;               // Reserved                     ...
+        u8      xAckType:1;             // Immediate or deferred        ...
+        u8      xAckInd:1;              // Indicates if ACK required    ...
+        u8      xFunction:1;            // Interrupt or Acknowledge     ...
+};
+
+
+struct HvLpEvent
+{
+        struct HvEventFlags xFlags;     // Event flags                  x00-x00
+        u8      xType;                  // Type of message              x01-x01
+        u16     xSubtype;               // Subtype for event            x02-x03
+        u8      xSourceLp;              // Source LP                    x04-x04
+        u8      xTargetLp;              // Target LP                    x05-x05
+        u8      xSizeMinus1;            // Size of Derived class - 1    x06-x06
+        u8      xRc;                    // RC for Ack flows             x07-x07
+        u16     xSourceInstanceId;      // Source sides instance id     x08-x09
+        u16     xTargetInstanceId;      // Target sides instance id     x0A-x0B
+        union {
+                u32     xSubtypeData;   // Data usable by the subtype   x0C-x0F
+                u16     xSubtypeDataShort[2];   // Data as 2 shorts
+                u8      xSubtypeDataChar[4];    // Data as 4 chars
+        } x;
+
+        u64     xCorrelationToken;      // Unique value for source/type x10-x17
+};
+
+// Lp Event handler function
+typedef void (*LpEventHandler)(struct HvLpEvent *, struct pt_regs *);
+
+// Register a handler for an event type
+//  returns 0 on success
+extern int HvLpEvent_registerHandler( HvLpEvent_Type eventType, LpEventHandler hdlr);
+
+// Unregister a handler for an event type
+//  This call will sleep until the handler being removed is guaranteed to
+//  be no longer executing on any CPU. Do not call with locks held.
+//
+//  returns 0 on success
+//  Unregister will fail if there are any paths open for the type
+extern int HvLpEvent_unregisterHandler( HvLpEvent_Type eventType );
+
+// Open an Lp Event Path for an event type
+//  returns 0 on success
+//  openPath will fail if there is no handler registered for the event type.
+//  The lpIndex specified is the partition index for the target partition
+//  (for VirtualIo, VirtualLan and SessionMgr) other types specify zero) 
+extern int HvLpEvent_openPath( HvLpEvent_Type eventType, HvLpIndex lpIndex );
+
+
+// Close an Lp Event Path for a type and partition
+//  returns 0 on sucess
+extern int HvLpEvent_closePath( HvLpEvent_Type eventType, HvLpIndex lpIndex );
+
+#define HvLpEvent_Type_Hypervisor 0
+#define HvLpEvent_Type_MachineFac 1
+#define HvLpEvent_Type_SessionMgr 2
+#define HvLpEvent_Type_SpdIo      3
+#define HvLpEvent_Type_VirtualBus 4
+#define HvLpEvent_Type_PciIo      5
+#define HvLpEvent_Type_RioIo      6
+#define HvLpEvent_Type_VirtualLan 7
+#define HvLpEvent_Type_VirtualIo  8
+#define HvLpEvent_Type_NumTypes   9
+
+#define HvLpEvent_Rc_Good 0
+#define HvLpEvent_Rc_BufferNotAvailable 1
+#define HvLpEvent_Rc_Cancelled 2
+#define HvLpEvent_Rc_GenericError 3
+#define HvLpEvent_Rc_InvalidAddress 4
+#define HvLpEvent_Rc_InvalidPartition 5
+#define HvLpEvent_Rc_InvalidSize 6
+#define HvLpEvent_Rc_InvalidSubtype 7
+#define HvLpEvent_Rc_InvalidSubtypeData 8
+#define HvLpEvent_Rc_InvalidType 9
+#define HvLpEvent_Rc_PartitionDead 10
+#define HvLpEvent_Rc_PathClosed 11
+#define HvLpEvent_Rc_SubtypeError 12
+
+#define HvLpEvent_Function_Ack 0
+#define HvLpEvent_Function_Int 1
+
+#define HvLpEvent_AckInd_NoAck 0
+#define HvLpEvent_AckInd_DoAck 1
+
+#define HvLpEvent_AckType_ImmediateAck 0
+#define HvLpEvent_AckType_DeferredAck 1
+
+#define HvLpDma_Direction_LocalToRemote 0
+#define HvLpDma_Direction_RemoteToLocal 1
+
+#define HvLpDma_AddressType_TceIndex 0
+#define HvLpDma_AddressType_RealAddress 1
+
+#define HvLpDma_Rc_Good 0
+#define HvLpDma_Rc_Error 1
+#define HvLpDma_Rc_PartitionDead 2
+#define HvLpDma_Rc_PathClosed 3
+#define HvLpDma_Rc_InvalidAddress 4
+#define HvLpDma_Rc_InvalidLength 5
+
+#endif // _HVLPEVENT_H