| /* |
| * 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 xInterrruptHdlr 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 */ |
