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authorHugh Dickins <hugh@veritas.com>2005-04-19 16:29:21 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org.(none)>2005-04-19 16:29:21 -0400
commit6119be0bba10e7e7b1e5650a87812fa2fd8d3a60 (patch)
tree5acc21e0611f1caf7163c120ca4214b2ee452b0d /include/asm-arm
parent8462e201756dd3bbe7e542106fc6fd6fe059cee2 (diff)
[PATCH] freepgt: arm FIRST_USER_ADDRESS PAGE_SIZE
ARM define FIRST_USER_ADDRESS as PAGE_SIZE (beyond the machine vectors when they are mapped low), and use that definition in place of locally defined MIN_MAP_ADDR. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-arm')
-rw-r--r--include/asm-arm/pgtable.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h
index 91ffb1f4cd10..2df4eacf4fa9 100644
--- a/include/asm-arm/pgtable.h
+++ b/include/asm-arm/pgtable.h
@@ -102,6 +102,13 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
102#define PGDIR_SIZE (1UL << PGDIR_SHIFT) 102#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
103#define PGDIR_MASK (~(PGDIR_SIZE-1)) 103#define PGDIR_MASK (~(PGDIR_SIZE-1))
104 104
105/*
106 * This is the lowest virtual address we can permit any user space
107 * mapping to be mapped at. This is particularly important for
108 * non-high vector CPUs.
109 */
110#define FIRST_USER_ADDRESS PAGE_SIZE
111
105#define FIRST_USER_PGD_NR 1 112#define FIRST_USER_PGD_NR 1
106#define USER_PTRS_PER_PGD ((TASK_SIZE/PGDIR_SIZE) - FIRST_USER_PGD_NR) 113#define USER_PTRS_PER_PGD ((TASK_SIZE/PGDIR_SIZE) - FIRST_USER_PGD_NR)
107 114