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/*
* 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_EVENT_H
#define _ASM_POWERPC_ISERIES_HV_CALL_EVENT_H
#include <linux/types.h>
#include <linux/dma-mapping.h>
#include <asm/iseries/hv_call_sc.h>
#include <asm/iseries/hv_types.h>
#include <asm/abs_addr.h>
struct HvLpEvent;
typedef u8 HvLpEvent_Type;
typedef u8 HvLpEvent_AckInd;
typedef u8 HvLpEvent_AckType;
typedef u8 HvLpDma_Direction;
typedef u8 HvLpDma_AddressType;
typedef u64 HvLpEvent_Rc;
typedef u64 HvLpDma_Rc;
#define HvCallEventAckLpEvent HvCallEvent + 0
#define HvCallEventCancelLpEvent HvCallEvent + 1
#define HvCallEventCloseLpEventPath HvCallEvent + 2
#define HvCallEventDmaBufList HvCallEvent + 3
#define HvCallEventDmaSingle HvCallEvent + 4
#define HvCallEventDmaToSp HvCallEvent + 5
#define HvCallEventGetOverflowLpEvents HvCallEvent + 6
#define HvCallEventGetSourceLpInstanceId HvCallEvent + 7
#define HvCallEventGetTargetLpInstanceId HvCallEvent + 8
#define HvCallEventOpenLpEventPath HvCallEvent + 9
#define HvCallEventSetLpEventStack HvCallEvent + 10
#define HvCallEventSignalLpEvent HvCallEvent + 11
#define HvCallEventSignalLpEventParms HvCallEvent + 12
#define HvCallEventSetInterLpQueueIndex HvCallEvent + 13
#define HvCallEventSetLpEventQueueInterruptProc HvCallEvent + 14
#define HvCallEventRouter15 HvCallEvent + 15
static inline void HvCallEvent_getOverflowLpEvents(u8 queueIndex)
{
HvCall1(HvCallEventGetOverflowLpEvents, queueIndex);
}
static inline void HvCallEvent_setInterLpQueueIndex(u8 queueIndex)
{
HvCall1(HvCallEventSetInterLpQueueIndex, queueIndex);
}
static inline void HvCallEvent_setLpEventStack(u8 queueIndex,
char *eventStackAddr, u32 eventStackSize)
{
HvCall3(HvCallEventSetLpEventStack, queueIndex,
virt_to_abs(eventStackAddr), eventStackSize);
}
static inline void HvCallEvent_setLpEventQueueInterruptProc(u8 queueIndex,
u16 lpLogicalProcIndex)
{
HvCall2(HvCallEventSetLpEventQueueInterruptProc, queueIndex,
lpLogicalProcIndex);
}
static inline HvLpEvent_Rc HvCallEvent_signalLpEvent(struct HvLpEvent *event)
{
return HvCall1(HvCallEventSignalLpEvent, virt_to_abs(event));
}
static inline HvLpEvent_Rc HvCallEvent_signalLpEventFast(HvLpIndex targetLp,
HvLpEvent_Type type, u16 subtype, HvLpEvent_AckInd ackInd,
HvLpEvent_AckType ackType, HvLpInstanceId sourceInstanceId,
HvLpInstanceId targetInstanceId, u64 correlationToken,
u64 eventData1, u64 eventData2, u64 eventData3,
u64 eventData4, u64 eventData5)
{
/* Pack the misc bits into a single Dword to pass to PLIC */
union {
struct {
u8 ack_and_target;
u8 type;
u16 subtype;
HvLpInstanceId src_inst;
HvLpInstanceId target_inst;
} parms;
u64 dword;
} packed;
packed.parms.ack_and_target = (ackType << 7) | (ackInd << 6) | targetLp;
packed.parms.type = type;
packed.parms.subtype = subtype;
packed.parms.src_inst = sourceInstanceId;
packed.parms.target_inst = targetInstanceId;
return HvCall7(HvCallEventSignalLpEventParms, packed.dword,
correlationToken, eventData1, eventData2,
eventData3, eventData4, eventData5);
}
extern void *iseries_hv_alloc(size_t size, dma_addr_t *dma_handle, gfp_t flag);
extern void iseries_hv_free(size_t size, void *vaddr, dma_addr_t dma_handle);
extern dma_addr_t iseries_hv_map(void *vaddr, size_t size,
enum dma_data_direction direction);
extern void iseries_hv_unmap(dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction);
static inline HvLpEvent_Rc HvCallEvent_ackLpEvent(struct HvLpEvent *event)
{
return HvCall1(HvCallEventAckLpEvent, virt_to_abs(event));
}
static inline HvLpEvent_Rc HvCallEvent_cancelLpEvent(struct HvLpEvent *event)
{
return HvCall1(HvCallEventCancelLpEvent, virt_to_abs(event));
}
static inline HvLpInstanceId HvCallEvent_getSourceLpInstanceId(
HvLpIndex targetLp, HvLpEvent_Type type)
{
return HvCall2(HvCallEventGetSourceLpInstanceId, targetLp, type);
}
static inline HvLpInstanceId HvCallEvent_getTargetLpInstanceId(
HvLpIndex targetLp, HvLpEvent_Type type)
{
return HvCall2(HvCallEventGetTargetLpInstanceId, targetLp, type);
}
static inline void HvCallEvent_openLpEventPath(HvLpIndex targetLp,
HvLpEvent_Type type)
{
HvCall2(HvCallEventOpenLpEventPath, targetLp, type);
}
static inline void HvCallEvent_closeLpEventPath(HvLpIndex targetLp,
HvLpEvent_Type type)
{
HvCall2(HvCallEventCloseLpEventPath, targetLp, type);
}
static inline HvLpDma_Rc HvCallEvent_dmaBufList(HvLpEvent_Type type,
HvLpIndex remoteLp, HvLpDma_Direction direction,
HvLpInstanceId localInstanceId,
HvLpInstanceId remoteInstanceId,
HvLpDma_AddressType localAddressType,
HvLpDma_AddressType remoteAddressType,
/* Do these need to be converted to absolute addresses? */
u64 localBufList, u64 remoteBufList, u32 transferLength)
{
/* Pack the misc bits into a single Dword to pass to PLIC */
union {
struct {
u8 flags;
HvLpIndex remote;
u8 type;
u8 reserved;
HvLpInstanceId local_inst;
HvLpInstanceId remote_inst;
} parms;
u64 dword;
} packed;
packed.parms.flags = (direction << 7) |
(localAddressType << 6) | (remoteAddressType << 5);
packed.parms.remote = remoteLp;
packed.parms.type = type;
packed.parms.reserved = 0;
packed.parms.local_inst = localInstanceId;
packed.parms.remote_inst = remoteInstanceId;
return HvCall4(HvCallEventDmaBufList, packed.dword, localBufList,
remoteBufList, transferLength);
}
static inline HvLpDma_Rc HvCallEvent_dmaToSp(void *local, u32 remote,
u32 length, HvLpDma_Direction dir)
{
return HvCall4(HvCallEventDmaToSp, virt_to_abs(local), remote,
length, dir);
}
#endif /* _ASM_POWERPC_ISERIES_HV_CALL_EVENT_H */
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