1 files changed, 0 insertions, 102 deletions
diff --git a/arch/unicore32/mm/pgd.c b/arch/unicore32/mm/pgd.c
deleted file mode 100644
index f01c73e04836..000000000000
--- a/arch/unicore32/mm/pgd.c
+++ /dev/null
@@ -1,102 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/arch/unicore32/mm/pgd.c
- *
- * Code specific to PKUnity SoC and UniCore ISA
- *
- * Copyright (C) 2001-2010 GUAN Xue-tao
- */
-#include <linux/mm.h>
-#include <linux/gfp.h>
-#include <linux/highmem.h>
-
-#include <asm/pgalloc.h>
-#include <asm/page.h>
-#include <asm/tlbflush.h>
-
-#include "mm.h"
-
-#define FIRST_KERNEL_PGD_NR	(FIRST_USER_PGD_NR + USER_PTRS_PER_PGD)
-
-/*
- * need to get a 4k page for level 1
- */
-pgd_t *get_pgd_slow(struct mm_struct *mm)
-{
-	pgd_t *new_pgd, *init_pgd;
-	pmd_t *new_pmd, *init_pmd;
-	pte_t *new_pte, *init_pte;
-
-	new_pgd = (pgd_t *)__get_free_pages(GFP_KERNEL, 0);
-	if (!new_pgd)
-		goto no_pgd;
-
-	memset(new_pgd, 0, FIRST_KERNEL_PGD_NR * sizeof(pgd_t));
-
-	/*
-	 * Copy over the kernel and IO PGD entries
-	 */
-	init_pgd = pgd_offset_k(0);
-	memcpy(new_pgd + FIRST_KERNEL_PGD_NR, init_pgd + FIRST_KERNEL_PGD_NR,
-		       (PTRS_PER_PGD - FIRST_KERNEL_PGD_NR) * sizeof(pgd_t));
-
-	clean_dcache_area(new_pgd, PTRS_PER_PGD * sizeof(pgd_t));
-
-	if (!vectors_high()) {
-		/*
-		 * On UniCore, first page must always be allocated since it
-		 * contains the machine vectors.
-		 */
-		new_pmd = pmd_alloc(mm, (pud_t *)new_pgd, 0);
-		if (!new_pmd)
-			goto no_pmd;
-
-		new_pte = pte_alloc_map(mm, new_pmd, 0);
-		if (!new_pte)
-			goto no_pte;
-
-		init_pmd = pmd_offset((pud_t *)init_pgd, 0);
-		init_pte = pte_offset_map(init_pmd, 0);
-		set_pte(new_pte, *init_pte);
-		pte_unmap(init_pte);
-		pte_unmap(new_pte);
-	}
-
-	return new_pgd;
-
-no_pte:
-	pmd_free(mm, new_pmd);
-	mm_dec_nr_pmds(mm);
-no_pmd:
-	free_pages((unsigned long)new_pgd, 0);
-no_pgd:
-	return NULL;
-}
-
-void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd)
-{
-	pmd_t *pmd;
-	pgtable_t pte;
-
-	if (!pgd)
-		return;
-
-	/* pgd is always present and good */
-	pmd = pmd_off(pgd, 0);
-	if (pmd_none(*pmd))
-		goto free;
-	if (pmd_bad(*pmd)) {
-		pmd_ERROR(*pmd);
-		pmd_clear(pmd);
-		goto free;
-	}
-
-	pte = pmd_pgtable(*pmd);
-	pmd_clear(pmd);
-	pte_free(mm, pte);
-	mm_dec_nr_ptes(mm);
-	pmd_free(mm, pmd);
-	mm_dec_nr_pmds(mm);
-free:
-	free_pages((unsigned long) pgd, 0);
-}