patch-2.4.0-test10 linux/arch/alpha/lib/callback_init.c

• Lines: 80
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test9/linux/arch/alpha/lib/callback_init.c
• Orig date: Mon Jun 19 17:59:33 2000

diff -u --recursive --new-file v2.4.0-test9/linux/arch/alpha/lib/callback_init.c linux/arch/alpha/lib/callback_init.c
@@ -1,79 +0,0 @@
-#include <linux/init.h>
-#include <linux/sched.h>
-
-#include <asm/page.h>
-#include <asm/hwrpb.h>
-#include <asm/console.h>
-#include <asm/pgtable.h>
-
-#include "../kernel/proto.h"
-
-extern struct hwrpb_struct *hwrpb;
-
-/* This is the SRM version.  Maybe there will be a DBM version. */
-
-int callback_init_done = 0;
-
-void *  __init callback_init(void * kernel_end)
-{
-	int i, j;
-	unsigned long vaddr = CONSOLE_REMAP_START;
-	struct crb_struct * crb;
-	pgd_t * pgd = pgd_offset_k(vaddr);
-	pmd_t * pmd;
-	unsigned long two_pte_pages;
-
-	if (!alpha_using_srm) {
-		switch_to_system_map();
-		return kernel_end;
-	}
-
-	/* Allocate some memory for the pages. */
-	two_pte_pages = ((unsigned long)kernel_end + ~PAGE_MASK) & PAGE_MASK;
-	kernel_end = (void *)(two_pte_pages + 2*PAGE_SIZE);
-	memset((void *)two_pte_pages, 0, 2*PAGE_SIZE);
-
-	/* Starting at the HWRPB, locate the CRB. */
-	crb = (struct crb_struct *)((char *)hwrpb + hwrpb->crb_offset);
-
-	/* Tell the console whither the console is to be remapped. */
-	if (srm_fixup(vaddr, (unsigned long)hwrpb))
-		__halt();		/* "We're boned."  --Bender */
-
-	/* Edit the procedure descriptors for DISPATCH and FIXUP. */
-	crb->dispatch_va = (struct procdesc_struct *)
-		(vaddr + (unsigned long)crb->dispatch_va - crb->map[0].va);
-	crb->fixup_va = (struct procdesc_struct *)
-		(vaddr + (unsigned long)crb->fixup_va - crb->map[0].va);
-
-	switch_to_system_map();
-
-	/*
-	 * Set up the first and second level PTEs for console callbacks.
-	 * There is an assumption here that only one of each is needed,
-	 * and this allows for 8MB.  Currently (late 1999), big consoles
-	 * are still under 4MB.
-	 */
-	pgd_set(pgd, (pmd_t *)two_pte_pages);
-	pmd = pmd_offset(pgd, vaddr);
-	pmd_set(pmd, (pte_t *)(two_pte_pages + PAGE_SIZE));
-
-	/*
-	 * Set up the third level PTEs and update the virtual addresses
-	 * of the CRB entries.
-	 */
-	for (i = 0; i < crb->map_entries; ++i) {
-		unsigned long paddr = crb->map[i].pa;
-		crb->map[i].va = vaddr;
-		for (j = 0; j < crb->map[i].count; ++j) {
-			set_pte(pte_offset(pmd, vaddr),
-				mk_pte_phys(paddr, PAGE_KERNEL));
-			paddr += PAGE_SIZE;
-			vaddr += PAGE_SIZE;
-		}
-	}
-
-	callback_init_done = 1;
-	return kernel_end;
-}
-