2005-04-16 18:20:36 -04:00
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Derived from IRIX <sys/SN/kldir.h>, revision 1.21.
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*
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* Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
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* Copyright (C) 1999, 2000 by Ralf Baechle
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*/
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#ifndef _ASM_SN_KLDIR_H
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#define _ASM_SN_KLDIR_H
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/*
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* The kldir memory area resides at a fixed place in each node's memory and
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* provides pointers to most other IP27 memory areas. This allows us to
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* resize and/or relocate memory areas at a later time without breaking all
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* firmware and kernels that use them. Indices in the array are
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* permanently dedicated to areas listed below. Some memory areas (marked
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* below) reside at a permanently fixed location, but are included in the
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* directory for completeness.
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*/
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#define KLDIR_MAGIC 0x434d5f53505f5357
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/*
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* The upper portion of the memory map applies during boot
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* only and is overwritten by IRIX/SYMMON.
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*
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* MEMORY MAP PER NODE
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*
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* 0x2000000 (32M) +-----------------------------------------+
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* | IO6 BUFFERS FOR FLASH ENET IOC3 |
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* 0x1F80000 (31.5M) +-----------------------------------------+
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* | IO6 TEXT/DATA/BSS/stack |
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* 0x1C00000 (30M) +-----------------------------------------+
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* | IO6 PROM DEBUG TEXT/DATA/BSS/stack |
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* 0x0800000 (28M) +-----------------------------------------+
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* | IP27 PROM TEXT/DATA/BSS/stack |
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* 0x1B00000 (27M) +-----------------------------------------+
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* | IP27 CFG |
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* 0x1A00000 (26M) +-----------------------------------------+
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* | Graphics PROM |
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* 0x1800000 (24M) +-----------------------------------------+
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* | 3rd Party PROM drivers |
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* 0x1600000 (22M) +-----------------------------------------+
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* | |
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* | Free |
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* | |
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* +-----------------------------------------+
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* | UNIX DEBUG Version |
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* 0x190000 (2M--) +-----------------------------------------+
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* | SYMMON |
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* | (For UNIX Debug only) |
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* 0x34000 (208K) +-----------------------------------------+
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* | SYMMON STACK [NUM_CPU_PER_NODE] |
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* | (For UNIX Debug only) |
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* 0x25000 (148K) +-----------------------------------------+
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* | KLCONFIG - II (temp) |
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* | |
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* | ---------------------------- |
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* | |
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* | UNIX NON-DEBUG Version |
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* 0x19000 (100K) +-----------------------------------------+
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*
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*
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* The lower portion of the memory map contains information that is
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* permanent and is used by the IP27PROM, IO6PROM and IRIX.
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*
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* 0x19000 (100K) +-----------------------------------------+
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* | |
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* | PI Error Spools (32K) |
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* | |
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* 0x12000 (72K) +-----------------------------------------+
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* | Unused |
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* 0x11c00 (71K) +-----------------------------------------+
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* | CPU 1 NMI Eframe area |
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* 0x11a00 (70.5K) +-----------------------------------------+
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* | CPU 0 NMI Eframe area |
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* 0x11800 (70K) +-----------------------------------------+
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* | CPU 1 NMI Register save area |
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* 0x11600 (69.5K) +-----------------------------------------+
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* | CPU 0 NMI Register save area |
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* 0x11400 (69K) +-----------------------------------------+
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* | GDA (1k) |
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* 0x11000 (68K) +-----------------------------------------+
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* | Early cache Exception stack |
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* | and/or |
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* | kernel/io6prom nmi registers |
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* 0x10800 (66k) +-----------------------------------------+
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* | cache error eframe |
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* 0x10400 (65K) +-----------------------------------------+
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* | Exception Handlers (UALIAS copy) |
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* 0x10000 (64K) +-----------------------------------------+
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* | |
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* | |
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* | KLCONFIG - I (permanent) (48K) |
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* | |
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* | |
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* | |
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* 0x4000 (16K) +-----------------------------------------+
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* | NMI Handler (Protected Page) |
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* 0x3000 (12K) +-----------------------------------------+
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* | ARCS PVECTORS (master node only) |
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* 0x2c00 (11K) +-----------------------------------------+
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* | ARCS TVECTORS (master node only) |
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* 0x2800 (10K) +-----------------------------------------+
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* | LAUNCH [NUM_CPU] |
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* 0x2400 (9K) +-----------------------------------------+
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* | Low memory directory (KLDIR) |
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* 0x2000 (8K) +-----------------------------------------+
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* | ARCS SPB (1K) |
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* 0x1000 (4K) +-----------------------------------------+
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* | Early cache Exception stack |
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* | and/or |
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* | kernel/io6prom nmi registers |
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* 0x800 (2k) +-----------------------------------------+
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* | cache error eframe |
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* 0x400 (1K) +-----------------------------------------+
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* | Exception Handlers |
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* 0x0 (0K) +-----------------------------------------+
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*/
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#ifdef __ASSEMBLY__
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#define KLDIR_OFF_MAGIC 0x00
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#define KLDIR_OFF_OFFSET 0x08
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#define KLDIR_OFF_POINTER 0x10
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#define KLDIR_OFF_SIZE 0x18
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#define KLDIR_OFF_COUNT 0x20
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#define KLDIR_OFF_STRIDE 0x28
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#endif /* __ASSEMBLY__ */
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/*
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* This is defined here because IP27_SYMMON_STK_SIZE must be at least what
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* we define here. Since it's set up in the prom. We can't redefine it later
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* and expect more space to be allocated. The way to find out the true size
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* of the symmon stacks is to divide SYMMON_STK_SIZE by SYMMON_STK_STRIDE
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* for a particular node.
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*/
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#define SYMMON_STACK_SIZE 0x8000
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2006-06-07 15:07:29 -04:00
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#if defined (PROM)
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2005-04-16 18:20:36 -04:00
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/*
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* These defines are prom version dependent. No code other than the IP27
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* prom should attempt to use these values.
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*/
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#define IP27_LAUNCH_OFFSET 0x2400
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#define IP27_LAUNCH_SIZE 0x400
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#define IP27_LAUNCH_COUNT 2
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#define IP27_LAUNCH_STRIDE 0x200
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#define IP27_KLCONFIG_OFFSET 0x4000
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#define IP27_KLCONFIG_SIZE 0xc000
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#define IP27_KLCONFIG_COUNT 1
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#define IP27_KLCONFIG_STRIDE 0
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#define IP27_NMI_OFFSET 0x3000
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#define IP27_NMI_SIZE 0x40
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#define IP27_NMI_COUNT 2
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#define IP27_NMI_STRIDE 0x40
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#define IP27_PI_ERROR_OFFSET 0x12000
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#define IP27_PI_ERROR_SIZE 0x4000
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#define IP27_PI_ERROR_COUNT 1
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#define IP27_PI_ERROR_STRIDE 0
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#define IP27_SYMMON_STK_OFFSET 0x25000
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#define IP27_SYMMON_STK_SIZE 0xe000
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#define IP27_SYMMON_STK_COUNT 2
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/* IP27_SYMMON_STK_STRIDE must be >= SYMMON_STACK_SIZE */
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#define IP27_SYMMON_STK_STRIDE 0x7000
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#define IP27_FREEMEM_OFFSET 0x19000
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#define IP27_FREEMEM_SIZE -1
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#define IP27_FREEMEM_COUNT 1
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#define IP27_FREEMEM_STRIDE 0
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2006-06-07 15:07:29 -04:00
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#endif /* PROM */
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2005-04-16 18:20:36 -04:00
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/*
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* There will be only one of these in a partition so the IO6 must set it up.
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*/
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#define IO6_GDA_OFFSET 0x11000
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#define IO6_GDA_SIZE 0x400
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#define IO6_GDA_COUNT 1
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#define IO6_GDA_STRIDE 0
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/*
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* save area of kernel nmi regs in the prom format
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*/
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#define IP27_NMI_KREGS_OFFSET 0x11400
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#define IP27_NMI_KREGS_CPU_SIZE 0x200
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/*
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* save area of kernel nmi regs in eframe format
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*/
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#define IP27_NMI_EFRAME_OFFSET 0x11800
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#define IP27_NMI_EFRAME_SIZE 0x200
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#define KLDIR_ENT_SIZE 0x40
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#define KLDIR_MAX_ENTRIES (0x400 / 0x40)
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#ifndef __ASSEMBLY__
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typedef struct kldir_ent_s {
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u64 magic; /* Indicates validity of entry */
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off_t offset; /* Offset from start of node space */
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unsigned long pointer; /* Pointer to area in some cases */
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size_t size; /* Size in bytes */
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u64 count; /* Repeat count if array, 1 if not */
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size_t stride; /* Stride if array, 0 if not */
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char rsvd[16]; /* Pad entry to 0x40 bytes */
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/* NOTE: These 16 bytes are used in the Partition KLDIR
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entry to store partition info. Refer to klpart.h for this. */
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} kldir_ent_t;
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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_SN_KLDIR_H */
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