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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
- */
- #ifndef _PLATFORMS_ISERIES_IT_LP_NACA_H
- #define _PLATFORMS_ISERIES_IT_LP_NACA_H
- #include <linux/types.h>
- /*
- * This control block contains the data that is shared between the
- * hypervisor (PLIC) and the OS.
- */
- struct ItLpNaca {
- // CACHE_LINE_1 0x0000 - 0x007F Contains read-only data
- u32 xDesc; // Eye catcher x00-x03
- u16 xSize; // Size of this class x04-x05
- u16 xIntHdlrOffset; // Offset to IntHdlr array x06-x07
- u8 xMaxIntHdlrEntries; // Number of entries in array x08-x08
- u8 xPrimaryLpIndex; // LP Index of Primary x09-x09
- u8 xServiceLpIndex; // LP Ind of Service Focal Pointx0A-x0A
- u8 xLpIndex; // LP Index x0B-x0B
- u16 xMaxLpQueues; // Number of allocated queues x0C-x0D
- u16 xLpQueueOffset; // Offset to start of LP queues x0E-x0F
- u8 xPirEnvironMode; // Piranha or hardware x10-x10
- u8 xPirConsoleMode; // Piranha console indicator x11-x11
- u8 xPirDasdMode; // Piranha dasd indicator x12-x12
- u8 xRsvd1_0[5]; // Reserved for Piranha related x13-x17
- u8 flags; // flags, see below x18-x1F
- u8 xSpVpdFormat; // VPD areas are in CSP format ...
- u8 xIntProcRatio; // Ratio of int procs to procs ...
- u8 xRsvd1_2[5]; // Reserved ...
- u16 xRsvd1_3; // Reserved x20-x21
- u16 xPlicVrmIndex; // VRM index of PLIC x22-x23
- u16 xMinSupportedSlicVrmInd;// Min supported OS VRM index x24-x25
- u16 xMinCompatableSlicVrmInd;// Min compatible OS VRM index x26-x27
- u64 xLoadAreaAddr; // ER address of load area x28-x2F
- u32 xLoadAreaChunks; // Chunks for the load area x30-x33
- u32 xPaseSysCallCRMask; // Mask used to test CR before x34-x37
- // doing an ASR switch on PASE
- // system call.
- u64 xSlicSegmentTablePtr; // Pointer to Slic seg table. x38-x3f
- u8 xRsvd1_4[64]; // x40-x7F
- // CACHE_LINE_2 0x0080 - 0x00FF Contains local read-write data
- u8 xRsvd2_0[128]; // Reserved x00-x7F
- // CACHE_LINE_3-6 0x0100 - 0x02FF Contains LP Queue indicators
- // NB: Padding required to keep xInterruptHdlr at x300 which is required
- // for v4r4 PLIC.
- u8 xOldLpQueue[128]; // LP Queue needed for v4r4 100-17F
- u8 xRsvd3_0[384]; // Reserved 180-2FF
- // CACHE_LINE_7-8 0x0300 - 0x03FF Contains the address of the OS interrupt
- // handlers
- u64 xInterruptHdlr[32]; // Interrupt handlers 300-x3FF
- };
- extern struct ItLpNaca itLpNaca;
- #define ITLPNACA_LPAR 0x80 /* Is LPAR installed on the system */
- #define ITLPNACA_PARTITIONED 0x40 /* Is the system partitioned */
- #define ITLPNACA_HWSYNCEDTBS 0x20 /* Hardware synced TBs */
- #define ITLPNACA_HMTINT 0x10 /* Utilize MHT for interrupts */
- #endif /* _PLATFORMS_ISERIES_IT_LP_NACA_H */
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