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Diffstat (limited to 'include/asm-ppc64/iSeries/ItLpQueue.h')
| -rw-r--r-- | include/asm-ppc64/iSeries/ItLpQueue.h | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/include/asm-ppc64/iSeries/ItLpQueue.h b/include/asm-ppc64/iSeries/ItLpQueue.h deleted file mode 100644 index 69b26ad74135..000000000000 --- a/include/asm-ppc64/iSeries/ItLpQueue.h +++ /dev/null @@ -1,81 +0,0 @@ -/* - * 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 */ |
