patch-2.2.8 linux/arch/arm/mm/mm-arc.c

• Lines: 83
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.2.7/linux/arch/arm/mm/mm-arc.c
• Orig date: Tue Jul 21 00:15:30 1998

diff -u --recursive --new-file v2.2.7/linux/arch/arm/mm/mm-arc.c linux/arch/arm/mm/mm-arc.c
@@ -1,82 +0,0 @@
-/*
- * arch/arm/mm/mm-arc.c
- *
- * Extra MM routines for the Archimedes architecture
- *
- * Copyright (C) 1998 Russell King
- */
-#include <linux/init.h>
-#include <asm/hardware.h>
-#include <asm/pgtable.h>
-
-unsigned long phys_screen_end;
-
-/*
- * This routine needs more work to make it dynamically release/allocate mem!
- */
-__initfunc(unsigned long map_screen_mem(unsigned long log_start, unsigned long kmem, int update))
-{
-	static int updated = 0;
-
-	if (updated)
-		return 0;
-
-	updated = update;
-
-	if (update) {
-		unsigned long address = log_start, offset;
-		pgd_t *pgdp;
-
-		kmem = (kmem + 3) & ~3;
-
-		pgdp = pgd_offset (&init_mm, address);				/* +31 */
-		offset = SCREEN_START;
-		while (address < SCREEN1_END) {
-			unsigned long addr_pmd, end_pmd;
-			pmd_t *pmdp;
-
-			/* if (pgd_none (*pgdp)) alloc pmd */
-			pmdp = pmd_offset (pgdp, address);			/* +0 */
-			addr_pmd = address & ~PGDIR_MASK;			/* 088000 */
-			end_pmd = addr_pmd + SCREEN1_END - address;		/* 100000 */
-			if (end_pmd > PGDIR_SIZE)
-				end_pmd = PGDIR_SIZE;
-
-			do {
-				unsigned long addr_pte, end_pte;
-				pte_t *ptep;
-
-				if (pmd_none (*pmdp)) {
-					pte_t *new_pte = (pte_t *)kmem;
-					kmem += PTRS_PER_PTE * BYTES_PER_PTR;
-					memzero (new_pte, PTRS_PER_PTE * BYTES_PER_PTR);
-					set_pmd (pmdp, mk_pmd(new_pte));
-				}
-
-				ptep = pte_offset (pmdp, addr_pmd);		/* +11 */
-				addr_pte = addr_pmd & ~PMD_MASK;		/* 088000 */
-				end_pte = addr_pte + end_pmd - addr_pmd;	/* 100000 */
-				if (end_pte > PMD_SIZE)
-					end_pte = PMD_SIZE;
-
-				do {
-					set_pte (ptep, mk_pte(offset, PAGE_KERNEL));
-					addr_pte += PAGE_SIZE;
-					offset += PAGE_SIZE;
-					ptep++;
-				} while (addr_pte < end_pte);
-
-				pmdp++;
-				addr_pmd = (addr_pmd + PMD_SIZE) & PMD_MASK;
-			} while (addr_pmd < end_pmd);
-
-			address = (address + PGDIR_SIZE) & PGDIR_MASK;
-			pgdp ++;
-		}
-
-		phys_screen_end = offset;
-		flush_tlb_all ();
-		update_memc_all ();
-	}
-	return kmem;
-}