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186 lines
6.8 KiB
186 lines
6.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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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_SN0_KLDIR_H |
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#define _ASM_SN_SN0_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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/* |
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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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/* |
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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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#if defined(PROM) |
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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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#endif /* PROM */ |
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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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#endif /* _ASM_SN_SN0_KLDIR_H */
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