1 files changed, 0 insertions, 159 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mm/pgd.c b/ANDROID_3.4.5/arch/arm/mm/pgd.c
deleted file mode 100644
index 0acb089d..00000000
--- a/ANDROID_3.4.5/arch/arm/mm/pgd.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- *  linux/arch/arm/mm/pgd.c
- *
- *  Copyright (C) 1998-2005 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/mm.h>
-#include <linux/gfp.h>
-#include <linux/highmem.h>
-#include <linux/slab.h>
-
-#include <asm/cp15.h>
-#include <asm/pgalloc.h>
-#include <asm/page.h>
-#include <asm/tlbflush.h>
-
-#include "mm.h"
-
-#ifdef CONFIG_ARM_LPAE
-#define __pgd_alloc()	kmalloc(PTRS_PER_PGD * sizeof(pgd_t), GFP_KERNEL)
-#define __pgd_free(pgd)	kfree(pgd)
-#else
-#define __pgd_alloc()	(pgd_t *)__get_free_pages(GFP_KERNEL, 2)
-#define __pgd_free(pgd)	free_pages((unsigned long)pgd, 2)
-#endif
-
-/*
- * need to get a 16k page for level 1
- */
-pgd_t *pgd_alloc(struct mm_struct *mm)
-{
-	pgd_t *new_pgd, *init_pgd;
-	pud_t *new_pud, *init_pud;
-	pmd_t *new_pmd, *init_pmd;
-	pte_t *new_pte, *init_pte;
-
-	new_pgd = __pgd_alloc();
-	if (!new_pgd)
-		goto no_pgd;
-
-	memset(new_pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
-
-	/*
-	 * Copy over the kernel and IO PGD entries
-	 */
-	init_pgd = pgd_offset_k(0);
-	memcpy(new_pgd + USER_PTRS_PER_PGD, init_pgd + USER_PTRS_PER_PGD,
-		       (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
-
-	clean_dcache_area(new_pgd, PTRS_PER_PGD * sizeof(pgd_t));
-
-#ifdef CONFIG_ARM_LPAE
-	/*
-	 * Allocate PMD table for modules and pkmap mappings.
-	 */
-	new_pud = pud_alloc(mm, new_pgd + pgd_index(MODULES_VADDR),
-			    MODULES_VADDR);
-	if (!new_pud)
-		goto no_pud;
-
-	new_pmd = pmd_alloc(mm, new_pud, 0);
-	if (!new_pmd)
-		goto no_pmd;
-#endif
-
-	if (!vectors_high()) {
-		/*
-		 * On ARM, first page must always be allocated since it
-		 * contains the machine vectors. The vectors are always high
-		 * with LPAE.
-		 */
-		new_pud = pud_alloc(mm, new_pgd, 0);
-		if (!new_pud)
-			goto no_pud;
-
-		new_pmd = pmd_alloc(mm, new_pud, 0);
-		if (!new_pmd)
-			goto no_pmd;
-
-		new_pte = pte_alloc_map(mm, NULL, new_pmd, 0);
-		if (!new_pte)
-			goto no_pte;
-
-		init_pud = pud_offset(init_pgd, 0);
-		init_pmd = pmd_offset(init_pud, 0);
-		init_pte = pte_offset_map(init_pmd, 0);
-		set_pte_ext(new_pte, *init_pte, 0);
-		pte_unmap(init_pte);
-		pte_unmap(new_pte);
-	}
-
-	return new_pgd;
-
-no_pte:
-	pmd_free(mm, new_pmd);
-no_pmd:
-	pud_free(mm, new_pud);
-no_pud:
-	__pgd_free(new_pgd);
-no_pgd:
-	return NULL;
-}
-
-void pgd_free(struct mm_struct *mm, pgd_t *pgd_base)
-{
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pgtable_t pte;
-
-	if (!pgd_base)
-		return;
-
-	pgd = pgd_base + pgd_index(0);
-	if (pgd_none_or_clear_bad(pgd))
-		goto no_pgd;
-
-	pud = pud_offset(pgd, 0);
-	if (pud_none_or_clear_bad(pud))
-		goto no_pud;
-
-	pmd = pmd_offset(pud, 0);
-	if (pmd_none_or_clear_bad(pmd))
-		goto no_pmd;
-
-	pte = pmd_pgtable(*pmd);
-	pmd_clear(pmd);
-	pte_free(mm, pte);
-no_pmd:
-	pud_clear(pud);
-	pmd_free(mm, pmd);
-no_pud:
-	pgd_clear(pgd);
-	pud_free(mm, pud);
-no_pgd:
-#ifdef CONFIG_ARM_LPAE
-	/*
-	 * Free modules/pkmap or identity pmd tables.
-	 */
-	for (pgd = pgd_base; pgd < pgd_base + PTRS_PER_PGD; pgd++) {
-		if (pgd_none_or_clear_bad(pgd))
-			continue;
-		if (pgd_val(*pgd) & L_PGD_SWAPPER)
-			continue;
-		pud = pud_offset(pgd, 0);
-		if (pud_none_or_clear_bad(pud))
-			continue;
-		pmd = pmd_offset(pud, 0);
-		pud_clear(pud);
-		pmd_free(mm, pmd);
-		pgd_clear(pgd);
-		pud_free(mm, pud);
-	}
-#endif
-	__pgd_free(pgd_base);
-}