2 * Copyright (C) 2001 Mike Corrigan IBM Corporation
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 #ifndef _ASM_POWERPC_ISERIES_IT_LP_NACA_H
19 #define _ASM_POWERPC_ISERIES_IT_LP_NACA_H
21 #include <linux/types.h>
24 * This control block contains the data that is shared between the
25 * hypervisor (PLIC) and the OS.
29 // CACHE_LINE_1 0x0000 - 0x007F Contains read-only data
30 u32 xDesc; // Eye catcher x00-x03
31 u16 xSize; // Size of this class x04-x05
32 u16 xIntHdlrOffset; // Offset to IntHdlr array x06-x07
33 u8 xMaxIntHdlrEntries; // Number of entries in array x08-x08
34 u8 xPrimaryLpIndex; // LP Index of Primary x09-x09
35 u8 xServiceLpIndex; // LP Ind of Service Focal Pointx0A-x0A
36 u8 xLpIndex; // LP Index x0B-x0B
37 u16 xMaxLpQueues; // Number of allocated queues x0C-x0D
38 u16 xLpQueueOffset; // Offset to start of LP queues x0E-x0F
39 u8 xPirEnvironMode; // Piranha or hardware x10-x10
40 u8 xPirConsoleMode; // Piranha console indicator x11-x11
41 u8 xPirDasdMode; // Piranha dasd indicator x12-x12
42 u8 xRsvd1_0[5]; // Reserved for Piranha related x13-x17
43 u8 flags; // flags, see below x18-x1F
44 u8 xSpVpdFormat; // VPD areas are in CSP format ...
45 u8 xIntProcRatio; // Ratio of int procs to procs ...
46 u8 xRsvd1_2[5]; // Reserved ...
47 u16 xRsvd1_3; // Reserved x20-x21
48 u16 xPlicVrmIndex; // VRM index of PLIC x22-x23
49 u16 xMinSupportedSlicVrmInd;// Min supported OS VRM index x24-x25
50 u16 xMinCompatableSlicVrmInd;// Min compatible OS VRM index x26-x27
51 u64 xLoadAreaAddr; // ER address of load area x28-x2F
52 u32 xLoadAreaChunks; // Chunks for the load area x30-x33
53 u32 xPaseSysCallCRMask; // Mask used to test CR before x34-x37
54 // doing an ASR switch on PASE
56 u64 xSlicSegmentTablePtr; // Pointer to Slic seg table. x38-x3f
57 u8 xRsvd1_4[64]; // x40-x7F
59 // CACHE_LINE_2 0x0080 - 0x00FF Contains local read-write data
60 u8 xRsvd2_0[128]; // Reserved x00-x7F
62 // CACHE_LINE_3-6 0x0100 - 0x02FF Contains LP Queue indicators
63 // NB: Padding required to keep xInterrruptHdlr at x300 which is required
65 u8 xOldLpQueue[128]; // LP Queue needed for v4r4 100-17F
66 u8 xRsvd3_0[384]; // Reserved 180-2FF
68 // CACHE_LINE_7-8 0x0300 - 0x03FF Contains the address of the OS interrupt
70 u64 xInterruptHdlr[32]; // Interrupt handlers 300-x3FF
73 extern struct ItLpNaca itLpNaca;
75 #define ITLPNACA_LPAR 0x80 /* Is LPAR installed on the system */
76 #define ITLPNACA_PARTITIONED 0x40 /* Is the system partitioned */
77 #define ITLPNACA_HWSYNCEDTBS 0x20 /* Hardware synced TBs */
78 #define ITLPNACA_HMTINT 0x10 /* Utilize MHT for interrupts */
80 #endif /* _ASM_POWERPC_ISERIES_IT_LP_NACA_H */