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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Derived from IRIX <sys/SN/kldir.h>, revision 1.21.
*
* Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
* Copyright (C) 1999, 2000 by Ralf Baechle
*/
#ifndef _ASM_SN_SN0_KLDIR_H
#define _ASM_SN_SN0_KLDIR_H
/*
* The kldir memory area resides at a fixed place in each node's memory and
* provides pointers to most other IP27 memory areas. This allows us to
* resize and/or relocate memory areas at a later time without breaking all
* firmware and kernels that use them. Indices in the array are
* permanently dedicated to areas listed below. Some memory areas (marked
* below) reside at a permanently fixed location, but are included in the
* directory for completeness.
*/
/*
* The upper portion of the memory map applies during boot
* only and is overwritten by IRIX/SYMMON.
*
* MEMORY MAP PER NODE
*
* 0x2000000 (32M) +-----------------------------------------+
* | IO6 BUFFERS FOR FLASH ENET IOC3 |
* 0x1F80000 (31.5M) +-----------------------------------------+
* | IO6 TEXT/DATA/BSS/stack |
* 0x1C00000 (30M) +-----------------------------------------+
* | IO6 PROM DEBUG TEXT/DATA/BSS/stack |
* 0x0800000 (28M) +-----------------------------------------+
* | IP27 PROM TEXT/DATA/BSS/stack |
* 0x1B00000 (27M) +-----------------------------------------+
* | IP27 CFG |
* 0x1A00000 (26M) +-----------------------------------------+
* | Graphics PROM |
* 0x1800000 (24M) +-----------------------------------------+
* | 3rd Party PROM drivers |
* 0x1600000 (22M) +-----------------------------------------+
* | |
* | Free |
* | |
* +-----------------------------------------+
* | UNIX DEBUG Version |
* 0x190000 (2M--) +-----------------------------------------+
* | SYMMON |
* | (For UNIX Debug only) |
* 0x34000 (208K) +-----------------------------------------+
* | SYMMON STACK [NUM_CPU_PER_NODE] |
* | (For UNIX Debug only) |
* 0x25000 (148K) +-----------------------------------------+
* | KLCONFIG - II (temp) |
* | |
* | ---------------------------- |
* | |
* | UNIX NON-DEBUG Version |
* 0x19000 (100K) +-----------------------------------------+
*
*
* The lower portion of the memory map contains information that is
* permanent and is used by the IP27PROM, IO6PROM and IRIX.
*
* 0x19000 (100K) +-----------------------------------------+
* | |
* | PI Error Spools (32K) |
* | |
* 0x12000 (72K) +-----------------------------------------+
* | Unused |
* 0x11c00 (71K) +-----------------------------------------+
* | CPU 1 NMI Eframe area |
* 0x11a00 (70.5K) +-----------------------------------------+
* | CPU 0 NMI Eframe area |
* 0x11800 (70K) +-----------------------------------------+
* | CPU 1 NMI Register save area |
* 0x11600 (69.5K) +-----------------------------------------+
* | CPU 0 NMI Register save area |
* 0x11400 (69K) +-----------------------------------------+
* | GDA (1k) |
* 0x11000 (68K) +-----------------------------------------+
* | Early cache Exception stack |
* | and/or |
* | kernel/io6prom nmi registers |
* 0x10800 (66k) +-----------------------------------------+
* | cache error eframe |
* 0x10400 (65K) +-----------------------------------------+
* | Exception Handlers (UALIAS copy) |
* 0x10000 (64K) +-----------------------------------------+
* | |
* | |
* | KLCONFIG - I (permanent) (48K) |
* | |
* | |
* | |
* 0x4000 (16K) +-----------------------------------------+
* | NMI Handler (Protected Page) |
* 0x3000 (12K) +-----------------------------------------+
* | ARCS PVECTORS (master node only) |
* 0x2c00 (11K) +-----------------------------------------+
* | ARCS TVECTORS (master node only) |
* 0x2800 (10K) +-----------------------------------------+
* | LAUNCH [NUM_CPU] |
* 0x2400 (9K) +-----------------------------------------+
* | Low memory directory (KLDIR) |
* 0x2000 (8K) +-----------------------------------------+
* | ARCS SPB (1K) |
* 0x1000 (4K) +-----------------------------------------+
* | Early cache Exception stack |
* | and/or |
* | kernel/io6prom nmi registers |
* 0x800 (2k) +-----------------------------------------+
* | cache error eframe |
* 0x400 (1K) +-----------------------------------------+
* | Exception Handlers |
* 0x0 (0K) +-----------------------------------------+
*/
/*
* This is defined here because IP27_SYMMON_STK_SIZE must be at least what
* we define here. Since it's set up in the prom. We can't redefine it later
* and expect more space to be allocated. The way to find out the true size
* of the symmon stacks is to divide SYMMON_STK_SIZE by SYMMON_STK_STRIDE
* for a particular node.
*/
#define SYMMON_STACK_SIZE 0x8000
#if defined(PROM)
/*
* These defines are prom version dependent. No code other than the IP27
* prom should attempt to use these values.
*/
#define IP27_LAUNCH_OFFSET 0x2400
#define IP27_LAUNCH_SIZE 0x400
#define IP27_LAUNCH_COUNT 2
#define IP27_LAUNCH_STRIDE 0x200
#define IP27_KLCONFIG_OFFSET 0x4000
#define IP27_KLCONFIG_SIZE 0xc000
#define IP27_KLCONFIG_COUNT 1
#define IP27_KLCONFIG_STRIDE 0
#define IP27_NMI_OFFSET 0x3000
#define IP27_NMI_SIZE 0x40
#define IP27_NMI_COUNT 2
#define IP27_NMI_STRIDE 0x40
#define IP27_PI_ERROR_OFFSET 0x12000
#define IP27_PI_ERROR_SIZE 0x4000
#define IP27_PI_ERROR_COUNT 1
#define IP27_PI_ERROR_STRIDE 0
#define IP27_SYMMON_STK_OFFSET 0x25000
#define IP27_SYMMON_STK_SIZE 0xe000
#define IP27_SYMMON_STK_COUNT 2
/* IP27_SYMMON_STK_STRIDE must be >= SYMMON_STACK_SIZE */
#define IP27_SYMMON_STK_STRIDE 0x7000
#define IP27_FREEMEM_OFFSET 0x19000
#define IP27_FREEMEM_SIZE -1
#define IP27_FREEMEM_COUNT 1
#define IP27_FREEMEM_STRIDE 0
#endif /* PROM */
/*
* There will be only one of these in a partition so the IO6 must set it up.
*/
#define IO6_GDA_OFFSET 0x11000
#define IO6_GDA_SIZE 0x400
#define IO6_GDA_COUNT 1
#define IO6_GDA_STRIDE 0
/*
* save area of kernel nmi regs in the prom format
*/
#define IP27_NMI_KREGS_OFFSET 0x11400
#define IP27_NMI_KREGS_CPU_SIZE 0x200
/*
* save area of kernel nmi regs in eframe format
*/
#define IP27_NMI_EFRAME_OFFSET 0x11800
#define IP27_NMI_EFRAME_SIZE 0x200
#endif /* _ASM_SN_SN0_KLDIR_H */
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