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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-06-27 14:08:56 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-06-27 14:08:56 +0100
commita343e6075a396e07eeff52c0da5629c8fd396be2 (patch)
tree8ee3bcc2d24acb24476e683eea6c4662fb90f514
parent2ea83398b75309d8fdc999c4bb252e72d7e4fd9d (diff)
[PATCH] ARM: Move PGD kernel page table initialisation
It doesn't make sense to have the PGD kernel pointers initialisation separate from the PGD user pointers, especially when we clean the data cache over the whole range. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/mm/mm-armv.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c
index 2c2b93d77d43..d79864a0dfa6 100644
--- a/arch/arm/mm/mm-armv.c
+++ b/arch/arm/mm/mm-armv.c
@@ -169,7 +169,14 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
memzero(new_pgd, 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()) {
/*
@@ -198,14 +205,6 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
spin_unlock(&mm->page_table_lock);
}
- /*
- * Copy over the kernel and IO PGD entries
- */
- 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));
-
return new_pgd;
no_pte: