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/*
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* ItLpNaca.h
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* Copyright (C) 2001 Mike Corrigan IBM Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _ITLPNACA_H
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#define _ITLPNACA_H
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#include <linux/types.h>
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/*
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* This control block contains the data that is shared between the
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* hypervisor (PLIC) and the OS.
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*/
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struct ItLpNaca {
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// CACHE_LINE_1 0x0000 - 0x007F Contains read-only data
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u32 xDesc; // Eye catcher x00-x03
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u16 xSize; // Size of this class x04-x05
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u16 xIntHdlrOffset; // Offset to IntHdlr array x06-x07
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u8 xMaxIntHdlrEntries; // Number of entries in array x08-x08
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u8 xPrimaryLpIndex; // LP Index of Primary x09-x09
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u8 xServiceLpIndex; // LP Ind of Service Focal Pointx0A-x0A
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u8 xLpIndex; // LP Index x0B-x0B
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u16 xMaxLpQueues; // Number of allocated queues x0C-x0D
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u16 xLpQueueOffset; // Offset to start of LP queues x0E-x0F
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u8 xPirEnvironMode:8; // Piranha or hardware x10-x10
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u8 xPirConsoleMode:8; // Piranha console indicator x11-x11
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u8 xPirDasdMode:8; // Piranha dasd indicator x12-x12
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u8 xRsvd1_0[5]; // Reserved for Piranha related x13-x17
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u8 xLparInstalled:1; // Is LPAR installed on system x18-x1F
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u8 xSysPartitioned:1; // Is the system partitioned ...
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u8 xHwSyncedTBs:1; // Hardware synced TBs ...
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u8 xIntProcUtilHmt:1; // Utilize HMT for interrupts ...
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u8 xRsvd1_1:4; // Reserved ...
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u8 xSpVpdFormat:8; // VPD areas are in CSP format ...
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u8 xIntProcRatio:8; // Ratio of int procs to procs ...
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u8 xRsvd1_2[5]; // Reserved ...
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u16 xRsvd1_3; // Reserved x20-x21
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u16 xPlicVrmIndex; // VRM index of PLIC x22-x23
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u16 xMinSupportedSlicVrmInd;// Min supported OS VRM index x24-x25
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u16 xMinCompatableSlicVrmInd;// Min compatible OS VRM index x26-x27
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u64 xLoadAreaAddr; // ER address of load area x28-x2F
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u32 xLoadAreaChunks; // Chunks for the load area x30-x33
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u32 xPaseSysCallCRMask; // Mask used to test CR before x34-x37
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// doing an ASR switch on PASE
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// system call.
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u64 xSlicSegmentTablePtr; // Pointer to Slic seg table. x38-x3f
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u8 xRsvd1_4[64]; // x40-x7F
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// CACHE_LINE_2 0x0080 - 0x00FF Contains local read-write data
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u8 xRsvd2_0[128]; // Reserved x00-x7F
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// CACHE_LINE_3-6 0x0100 - 0x02FF Contains LP Queue indicators
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// NB: Padding required to keep xInterrruptHdlr at x300 which is required
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// for v4r4 PLIC.
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u8 xOldLpQueue[128]; // LP Queue needed for v4r4 100-17F
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u8 xRsvd3_0[384]; // Reserved 180-2FF
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// CACHE_LINE_7-8 0x0300 - 0x03FF Contains the address of the OS interrupt
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// handlers
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u64 xInterruptHdlr[32]; // Interrupt handlers 300-x3FF
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};
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extern struct ItLpNaca itLpNaca;
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#endif /* _ITLPNACA_H */
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