patch-2.1.44 linux/include/asm-mips/bootinfo.h
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- Lines: 465
- Date:
Thu Jun 26 12:33:39 1997
- Orig file:
v2.1.43/linux/include/asm-mips/bootinfo.h
- Orig date:
Sat May 24 09:10:25 1997
diff -u --recursive --new-file v2.1.43/linux/include/asm-mips/bootinfo.h linux/include/asm-mips/bootinfo.h
@@ -1,11 +1,8 @@
/*
* bootinfo.h -- Definition of the Linux/MIPS boot information structure
*
- * Copyright (C) 1994 by Waldorf Electronics
- * Written by Ralf Baechle and Andreas Busse
- *
- * Based on Linux/68k linux/include/linux/bootstrap.h
- * Copyright (C) 1992 by Greg Harp
+ * Copyright (C) 1995, 1996 by Ralf Baechle, Andreas Busse,
+ * Stoned Elipot and Paul M. Antoine.
*
* 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
@@ -14,19 +11,95 @@
#ifndef __ASM_MIPS_BOOTINFO_H
#define __ASM_MIPS_BOOTINFO_H
+/* XXX */
+#include <linux/config.h>
+
+#if 0
/*
* Valid machtype values
+ * FIXME: note that we really need a hierarchy for this stuff, as there are
+ * several models of DECStation (for example). PMA
+ */
+#define MACH_UNKNOWN 0 /* whatever... */
+#define MACH_DESKSTATION_RPC44 1 /* Deskstation rPC44 */
+#define MACH_DESKSTATION_TYNE 2 /* Deskstation Tyne */
+#define MACH_ACER_PICA_61 3 /* Acer PICA-61 (PICA1) */
+#define MACH_MIPS_MAGNUM_4000 4 /* Mips Magnum 4000 "RC4030" */
+#define MACH_OLIVETTI_M700 4 /* almost a clone ... */
+#define MACH_DECSTATION 5 /* DECStation 5000/2x for now */
+#define MACH_SNI_RM200_PCI 6 /* RM200/RM300/RM400 PCI series */
+#define MACH_SGI_INDY 7 /* R4?K and R5K Indy workstaions */
+#define MACH_LAST 7
+
+#define MACH_NAMES {"unknown", "Deskstation rPC44", "Deskstation Tyne", \
+ "Acer PICA 61", "Mips Magnum 4000", "DECStation", "RM200 PCI", \
+ "SGI INDY" }
+#endif
+
+/*
+ * Values for machgroup
+ */
+#define MACH_GROUP_UNKNOWN 0 /* whatever... */
+#define MACH_GROUP_JAZZ 1 /* Jazz */
+#define MACH_GROUP_DEC 2 /* Digital Equipment */
+#define MACH_GROUP_ARC 3 /* Wreckstation Tyne, rPC44, possibly other */
+#define MACH_GROUP_SNI_RM 4 /* Siemens Nixdorf RM series */
+#define MACH_GROUP_ACN 5
+#define MACH_GROUP_SGI 6 /* Silicon Graphics workstations and servers */
+
+#define GROUP_NAMES { "unknown", "Jazz", "Digital", "ARC", "SNI", "ACN" }
+
+/*
+ * Valid machtype values for group unknown (low order halfword of mips_machtype)
+ */
+#define MACH_UNKNOWN 0 /* whatever... */
+
+#define GROUP_UNKNOWN_NAMES { "unknown" }
+
+/*
+ * Valid machtype values for group JAZZ
+ */
+#define MACH_ACER_PICA_61 0 /* Acer PICA-61 (PICA1) */
+#define MACH_MIPS_MAGNUM_4000 1 /* Mips Magnum 4000 "RC4030" */
+#define MACH_OLIVETTI_M700 2 /* Olivetti M700-10 (-15 ??) */
+
+#define GROUP_JAZZ_NAMES { "Acer PICA 61", "Mips Magnum 4000", "Olivetti M700" }
+
+/*
+ * Valid machtype for group DEC
+ */
+/* FIXME: this is a very fuzzy name, and we got a big "name space now" */
+/* So otiginal DEC codes can be used -Stoned */
+#define MACH_DECSTATION 0 /* DECStation 5000/2x for now */
+
+#define GROUP_DEC_NAMES { "3min" }
+
+/*
+ * Valid machtype for group ARC
*/
-#define MACH_UNKNOWN 0 /* whatever... */
-#define MACH_DESKSTATION_RPC44 1 /* Deskstation rPC44 */
-#define MACH_DESKSTATION_TYNE 2 /* Deskstation Tyne */
-#define MACH_ACER_PICA_61 3 /* Acer PICA-61 (PICA1) */
-#define MACH_MIPS_MAGNUM_4000 4 /* Mips Magnum 4000 "RC4030" */
-#define MACH_OLIVETTI_M700 5 /* Olivetti M700 */
-#define MACH_LAST 5
+#define MACH_DESKSTATION_RPC44 0 /* Deskstation rPC44 */
+#define MACH_DESKSTATION_TYNE 1 /* Deskstation Tyne */
-#define MACH_NAMES { "unknown", "Deskstation rPC44", "Deskstation Tyne", \
- "Acer PICA 61", "Mips Magnum 4000", "Olivetti M700" }
+#define GROUP_ARC_NAMES { "Deskstation rPC44", "Deskstation Tyne" }
+
+/*
+ * Valid machtype for group SNI_RM
+ */
+#define MACH_SNI_RM200_PCI 0 /* RM200/RM300/RM400 PCI series */
+
+#define GROUP_SNI_RM_NAMES { "RM200 PCI" }
+
+/*
+ * Valid machtype for group ACN
+ */
+#define MACH_ACN_MIPS_BOARD 0 /* ACN MIPS single board */
+
+#define GROUP_ACN_NAMES { "ACN" }
+
+/*
+ * Valid machtype for group SGI
+ */
+#define MACH_SGI_INDY 0 /* R4?K and R5K Indy workstaions */
/*
* Valid cputype values
@@ -52,200 +125,191 @@
#define CPU_R6000A 18
#define CPU_R8000 19
#define CPU_R10000 20
-#define CPU_LAST 20
+#define CPU_R4300 21
+#define CPU_R4650 22
+#define CPU_R4700 23
+#define CPU_R5000 24
+#define CPU_R5000A 25
+#define CPU_R4640 26
+#define CPU_LAST 27
#define CPU_NAMES { "unknown", "R2000", "R3000", "R3000A", "R3041", "R3051", \
"R3052", "R3081", "R3081E", "R4000PC", "R4000SC", "R4000MC", \
"R4200", "R4400PC", "R4400SC", "R4400MC", "R4600", "R6000", \
- "R6000A", "R8000", "R10000" }
+ "R6000A", "R8000", "R10000", "R4300", "R4650", "R4700", "R5000", \
+ "R5000A", "R4640" }
#define CL_SIZE (80)
#ifndef __LANGUAGE_ASSEMBLY__
/*
- * Some machine parameters passed by MILO. Note that bootinfo
- * *must* be in the data segment since the kernel clears the
- * bss segment directly after startup.
+ * Some machine parameters passed by the bootloaders.
*/
struct drive_info_struct {
char dummy[32];
- };
-
-struct bootinfo {
- /*
- * machine type
- */
- unsigned long machtype;
-
- /*
- * system CPU & FPU
- */
- unsigned long cputype;
-
- /*
- * Installed RAM
- */
- unsigned long memlower;
- unsigned long memupper;
-
- /*
- * Cache Sizes (0xffffffff = unknown)
- */
- unsigned long icache_size;
- unsigned long icache_linesize;
- unsigned long dcache_size;
- unsigned long dcache_linesize;
- unsigned long scache_size;
- unsigned long scache_linesize;
-
- /*
- * TLB Info
- */
- unsigned long tlb_entries;
-
- /*
- * DMA buffer size (Deskstation only)
- */
- unsigned long dma_cache_size;
- unsigned long dma_cache_base;
-
- /*
- * Ramdisk Info
- */
- unsigned long ramdisk_flags; /* ramdisk flags */
- unsigned long ramdisk_base; /* address of the ram disk in mem */
-
- /*
- * Boot flags for the kernel
- */
- unsigned long mount_root_rdonly;
- struct drive_info_struct drive_info;
-
- /*
- * Video ram info (not in tty.h)
- */
- unsigned long vram_base; /* video ram base address */
-
- char command_line[CL_SIZE]; /* kernel command line parameters */
-
};
-#if 0
+/* This is the same as in Milo but renamed for the sake of kernel's */
+/* namespace */
+typedef struct mips_arc_DisplayInfo { /* video adapter information */
+ unsigned short cursor_x;
+ unsigned short cursor_y;
+ unsigned short columns;
+ unsigned short lines;
+} mips_arc_DisplayInfo;
+
/*
* New style bootinfo
*
* Add new tags only at the end of the enum; *never* remove any tags
* or you'll break compatibility!
*/
-enum bi_tag {
- /*
- * not a real tag
- */
- dummy,
+enum bi_tag {
+ /*
+ * not a real tag
+ */
+ tag_dummy,
+
+ /*
+ * machine type
+ */
+ tag_machtype,
+
+ /*
+ * system CPU & FPU
+ */
+ tag_cputype,
+
+ /*
+ * Installed RAM
+ */
+ tag_memlower,
+ tag_memupper,
+
+ /*
+ * Cache Sizes (0xffffffff = unknown)
+ */
+ tag_icache_size,
+ tag_icache_linesize,
+ tag_dcache_size,
+ tag_dcache_linesize,
+ tag_scache_size,
+ tag_scache_linesize,
+
+ /*
+ * TLB Info
+ */
+ tag_tlb_entries,
+
+ /*
+ * DMA buffer size (Deskstation only)
+ */
+ tag_dma_cache_size,
+ tag_dma_cache_base,
+
+ /*
+ * Ramdisk Info
+ */
+ tag_ramdisk_size, /* ramdisk size in 1024 byte blocks */
+ tag_ramdisk_base, /* address of the ram disk in mem */
+
+ /*
+ * Boot flags for the kernel
+ */
+ tag_mount_root_rdonly,
+ tag_drive_info,
+
+ /*
+ * Video ram info (not in tty.h)
+ */
+ tag_vram_base, /* video ram base address */
+
+ tag_command_line, /* kernel command line parameters */
+
+ /*
+ * machine group
+ */
+ tag_machgroup,
/*
- * machine type
+ * info on the display from the ARC BIOS
*/
- machtype,
+ tag_arcdisplayinfo,
/*
- * system CPU & FPU
+ * tag to pass a complete struct screen_info
*/
- cputype,
+ tag_screen_info
+};
- /*
- * Installed RAM
- */
- memlower,
- memupper,
+/* struct defining a tag */
+typedef struct {
+ enum bi_tag tag;
+ unsigned long size;
+} tag;
- /*
- * Cache Sizes (0xffffffff = unknown)
- */
- icache_size,
- icache_linesize,
- dcache_size,
- dcache_linesize,
- scache_size,
- scache_linesize,
+/* struct to define a tag and it's data */
+typedef struct {
+ tag t;
+ void* d;
+} tag_def;
+
+/* macros for parsing tag list */
+#define TAGVALPTR(t) ((void*)(((void*)(t)) - ((t)->size)))
+#define NEXTTAGPTR(t) ((void*)(TAGVALPTR(t) - (sizeof(tag))))
+
+/* size macros for tag size field */
+#define UCHARSIZE (sizeof(unsigned char))
+#define ULONGSIZE (sizeof(unsigned long))
+#define UINTSIZE (sizeof(unsigned int))
+#define DRVINFOSIZE (sizeof(struct drive_info_struct))
+#define CMDLINESIZE (sizeof(char[CL_SIZE])
- /*
- * TLB Info
- */
- tlb_entries,
+/*
+ * For tag readers aka the kernel
+ */
+tag *bi_TagFind(enum bi_tag type);
+void bi_EarlySnarf(void);
- /*
- * DMA buffer size (Deskstation only)
- */
- dma_cache_size,
- dma_cache_base,
+/* For tag creators aka bootloaders */
+/* Now implemented in Milo 0.26 */
+int bi_TagAdd(enum bi_tag type, unsigned long size, void *data);
+int bi_TagAddList(tag_def* taglist);
+void bi_TagWalk(void);
- /*
- * Ramdisk Info
- */
- ramdisk_size, /* ramdisk size in 1024 byte blocks */
- ramdisk_base, /* address of the ram disk in mem */
- /*
- * Boot flags for the kernel
- */
- mount_root_rdonly,
- drive_info,
+#ifdef CONFIG_SGI
- /*
- * Video ram info (not in tty.h)
- */
- vram_base, /* video ram base address */
-
- command_line /* kernel command line parameters */
-
-};
+/* screen info will dissapear... soon */
+#define DEFAULT_SCREEN_INFO {0, 0, {0, 0, }, 0, 0, 158, 0, 0, 0, 62, 0, 16}
+#define DEFAULT_DRIVE_INFO { {0,}}
+
+#else
+
+/* default values for screen_info variable */
+#define DEFAULT_SCREEN_INFO {0, 0, {0, }, 52, 3, 80, 4626, 3, 9, 50}
+/* default values for drive info */
+#define DEFAULT_DRIVE_INFO { {0,}}
-typedef struct {
- bi_tag tag;
- unsigned long size;
-} tag;
#endif
-extern struct bootinfo boot_info;
/*
- * Defaults, may be overwritten by milo. We initialize
- * them to make sure that both boot_info and screen_info
- * are in the .data segment since the .bss segment is
- * cleared during startup.
- */
-#define BOOT_INFO { 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, {{0,}}, 0, "" }
-#define SCREEN_INFO {0, 0, {0, }, 52, 3, 80, 4626, 3, 9, 50}
-
-#else /* !__LANGUAGE_ASSEMBLY__ */
-
-/*
- * Same structure, but as offsets for usage within assembler source.
- * Don't mess with struct bootinfo without changing offsets too!
- */
-
-#define OFFSET_BOOTINFO_MACHTYPE 0
-#define OFFSET_BOOTINFO_CPUTYPE 4
-#define OFFSET_BOOTINFO_MEMLOWER 8
-#define OFFSET_BOOTINFO_MEMUPPER 12
-#define OFFSET_BOOTINFO_ICACHE_SIZE 16
-#define OFFSET_BOOTINFO_ICACHE_LINESIZE 20
-#define OFFSET_BOOTINFO_DCACHE_SIZE 24
-#define OFFSET_BOOTINFO_DCACHE_LINESIZE 28
-#define OFFSET_BOOTINFO_SCACHE_SIZE 32
-#define OFFSET_BOOTINFO_SCACHE_LINESIZE 36
-#define OFFSET_BOOTINFO_TLB_ENTRIES 40
-#define OFFSET_BOOTINFO_DMA_CACHE_SIZE 44
-#define OFFSET_BOOTINFO_DMA_CACHE_BASE 48
-#define OFFSET_BOOTINFO_RAMDISK_SIZE 52
-#define OFFSET_BOOTINFO_RAMDISK_BASE 56
-#define OFFSET_BOOTINFO_MOUNT_RD_ONLY 60
-#define OFFSET_BOOTINFO_DRIVE_INFO 64
-#define OFFSET_BOOTINFO_VRAM_BASE 96
-#define OFFSET_BOOTINFO_COMMAND_LINE 100
+ * These are the kernel variables initialized from
+ * the tag. And they have to be initialized to dummy/default
+ * values in setup.c (or whereever suitable) so they are in
+ * .data section
+ */
+extern unsigned long mips_memory_upper;
+extern unsigned long mips_cputype;
+extern unsigned long mips_machtype;
+extern unsigned long mips_machgroup;
+extern unsigned long mips_tlb_entries;
+extern unsigned long mips_vram_base;
+extern unsigned long mips_dma_cache_size;
+extern unsigned long mips_dma_cache_base;
#endif /* __LANGUAGE_ASSEMBLY__ */
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