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-rw-r--r--include/asm-ppc64/iSeries/ItLpQueue.h81
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diff --git a/include/asm-ppc64/iSeries/ItLpQueue.h b/include/asm-ppc64/iSeries/ItLpQueue.h
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--- a/include/asm-ppc64/iSeries/ItLpQueue.h
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-/*
- * ItLpQueue.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
- */
-#ifndef _ITLPQUEUE_H
-#define _ITLPQUEUE_H
-
-/*
- * This control block defines the simple LP queue structure that is
- * shared between the hypervisor (PLIC) and the OS in order to send
- * events to an LP.
- */
-
-#include <asm/types.h>
-#include <asm/ptrace.h>
-
-struct HvLpEvent;
-
-#define ITMaxLpQueues 8
-
-#define NotUsed 0 // Queue will not be used by PLIC
-#define DedicatedIo 1 // Queue dedicated to IO processor specified
-#define DedicatedLp 2 // Queue dedicated to LP specified
-#define Shared 3 // Queue shared for both IO and LP
-
-#define LpEventStackSize 4096
-#define LpEventMaxSize 256
-#define LpEventAlign 64
-
-struct hvlpevent_queue {
-/*
- * The xSlicCurEventPtr is the pointer to the next event stack entry
- * that will become valid. The OS must peek at this entry to determine
- * if it is valid. PLIC will set the valid indicator as the very last
- * store into that entry.
- *
- * When the OS has completed processing of the event then it will mark
- * the event as invalid so that PLIC knows it can store into that event
- * location again.
- *
- * If the event stack fills and there are overflow events, then PLIC
- * will set the xPlicOverflowIntPending flag in which case the OS will
- * have to fetch the additional LP events once they have drained the
- * event stack.
- *
- * The first 16-bytes are known by both the OS and PLIC. The remainder
- * of the cache line is for use by the OS.
- */
- u8 xPlicOverflowIntPending;// 0x00 Overflow events are pending
- u8 xPlicStatus; // 0x01 DedicatedIo or DedicatedLp or NotUsed
- u16 xSlicLogicalProcIndex; // 0x02 Logical Proc Index for correlation
- u8 xPlicRsvd[12]; // 0x04
- char *xSlicCurEventPtr; // 0x10
- char *xSlicLastValidEventPtr; // 0x18
- char *xSlicEventStackPtr; // 0x20
- u8 xIndex; // 0x28 unique sequential index.
- u8 xSlicRsvd[3]; // 0x29-2b
- spinlock_t lock;
-};
-
-extern struct hvlpevent_queue hvlpevent_queue;
-
-extern int hvlpevent_is_pending(void);
-extern void process_hvlpevents(struct pt_regs *);
-extern void setup_hvlpevent_queue(void);
-
-#endif /* _ITLPQUEUE_H */