patch-2.2.11 linux/arch/mips/lib/tags.c
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- Lines: 76
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.2.10/linux/arch/mips/lib/tags.c
- Orig date:
Thu Jun 26 12:33:37 1997
diff -u --recursive --new-file v2.2.10/linux/arch/mips/lib/tags.c linux/arch/mips/lib/tags.c
@@ -1,75 +0,0 @@
-/*
- * linux/arch/mips/lib/tags.c
- *
- * Copyright (C) 1996 Stoned Elipot
- */
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <asm/addrspace.h>
-#include <asm/bootinfo.h>
-
-/*
- * Parse the tags present in upper memory to find out
- * a pecular one.
- *
- * Parameter: type - tag type to find
- *
- * returns : NULL - failure
- * !NULL - pointer on the tag structure found
- */
-tag *
-bi_TagFind(enum bi_tag type)
-{
- tag* t = (tag*)(mips_memory_upper - sizeof(tag));
-
- while((t->tag != tag_dummy) && (t->tag != type))
- t = (tag*)(NEXTTAGPTR(t));
-
- if (t->tag == tag_dummy) /* tag not found */
- return (tag*)NULL;
-
- return t;
-}
-
-/*
- * Snarf from the tag list in memory end some tags needed
- * before the kernel reachs setup_arch()
- *
- * add yours here if you want to, but *beware*: the kernel var
- * that will hold the values you want to snarf have to be
- * in .data section of the kernel, so initialized in to whatever
- * value in the kernel's sources.
- */
-void bi_EarlySnarf(void)
-{
- tag* atag;
-
- /* for wire_mappings() */
- atag = bi_TagFind(tag_machgroup);
- if (atag)
- memcpy(&mips_machgroup, TAGVALPTR(atag), atag->size);
- else {
- /* useless for boxes without text video mode but....*/
- panic("machine group not specified by bootloader");
- }
-
- atag = bi_TagFind(tag_machtype);
- if (atag)
- memcpy(&mips_machtype, TAGVALPTR(atag), atag->size);
- else {
- /* useless for boxes without text video mode but....*/
- panic("machine type not specified by bootloader");
- }
-
- /* for tlbflush() */
- atag = bi_TagFind(tag_tlb_entries);
- if (atag)
- memcpy(&mips_tlb_entries, TAGVALPTR(atag), atag->size);
- else {
- /* useless for boxes without text video mode but....*/
- panic("number of TLB entries not specified by bootloader");
- }
-
- return;
-}
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