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Diffstat (limited to 'include/asm-ppc64/iSeries/HvLpEvent.h')
| -rw-r--r-- | include/asm-ppc64/iSeries/HvLpEvent.h | 144 |
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 |