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Diffstat (limited to 'include/asm-mips/sn/kldir.h')
| -rw-r--r-- | include/asm-mips/sn/kldir.h | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/include/asm-mips/sn/kldir.h b/include/asm-mips/sn/kldir.h new file mode 100644 index 000000000000..f0efab1672ec --- /dev/null +++ b/include/asm-mips/sn/kldir.h @@ -0,0 +1,248 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * 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_KLDIR_H +#define _ASM_SN_KLDIR_H + +#include <linux/config.h> + +#if defined(CONFIG_SGI_IO) +#include <asm/hack.h> +#endif + +/* + * 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. + */ + +#define KLDIR_MAGIC 0x434d5f53505f5357 + +/* + * 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) +-----------------------------------------+ + */ + +#ifdef __ASSEMBLY__ +#define KLDIR_OFF_MAGIC 0x00 +#define KLDIR_OFF_OFFSET 0x08 +#define KLDIR_OFF_POINTER 0x10 +#define KLDIR_OFF_SIZE 0x18 +#define KLDIR_OFF_COUNT 0x20 +#define KLDIR_OFF_STRIDE 0x28 +#endif /* __ASSEMBLY__ */ + +#if !defined(CONFIG_SGI_IO) + +/* + * 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) || defined (SABLE) + +/* + * 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 || SABLE*/ +/* + * 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 + +#define KLDIR_ENT_SIZE 0x40 +#define KLDIR_MAX_ENTRIES (0x400 / 0x40) + +#endif /* !CONFIG_SGI_IO */ + +#ifndef __ASSEMBLY__ +typedef struct kldir_ent_s { + u64 magic; /* Indicates validity of entry */ + off_t offset; /* Offset from start of node space */ +#if defined(CONFIG_SGI_IO) /* FIXME */ + __psunsigned_t pointer; /* Pointer to area in some cases */ +#else + unsigned long pointer; /* Pointer to area in some cases */ +#endif + size_t size; /* Size in bytes */ + u64 count; /* Repeat count if array, 1 if not */ + size_t stride; /* Stride if array, 0 if not */ + char rsvd[16]; /* Pad entry to 0x40 bytes */ + /* NOTE: These 16 bytes are used in the Partition KLDIR + entry to store partition info. Refer to klpart.h for this. */ +} kldir_ent_t; +#endif /* !__ASSEMBLY__ */ + +#if defined(CONFIG_SGI_IO) + +#define KLDIR_ENT_SIZE 0x40 +#define KLDIR_MAX_ENTRIES (0x400 / 0x40) + +/* + * The actual offsets of each memory area are machine-dependent + */ +#ifdef CONFIG_SGI_IP27 +// Not yet #include <asm/sn/sn0/kldir.h> +#elif defined(CONFIG_SGI_IP35) +#include <asm/sn/sn1/kldir.h> +#else +#error "kldir.h is currently defined for IP27 and IP35 platforms only" +#endif + +#endif /* CONFIG_SGI_IO */ + +#endif /* _ASM_SN_KLDIR_H */ |