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authorMichal Simek <monstr@monstr.eu>2011-12-22 12:33:24 +0100
committerMichal Simek <monstr@monstr.eu>2012-03-23 09:28:14 +0100
commit7c0d26150781cbd8a522259c9dea9e7ef23df8e3 (patch)
treef0324f4c59a50c74340ab198eda0832085e9be81 /arch/microblaze/mm
parent2f2f371f8907d169650f594850ca6096e2f73b77 (diff)
downloadlinux-7c0d26150781cbd8a522259c9dea9e7ef23df8e3.tar.gz
microblaze: Fix mapin_ram function
Fix how many pages are allocated in mapin_ram. It is lowmem_size not setup CONFIG_LOWMEM_SIZE because it is the same for all systems. Which means that wrong pages are allocated if memory size is smaller than CONFIG_LOWMEM_SIZE. It has dramatic impact on bootup time. On sp605 MMU full hw design is 7s. Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/mm')
-rw-r--r--arch/microblaze/mm/pgtable.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index 84905da83cb..d1c06d07fed 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -167,7 +167,7 @@ void __init mapin_ram(void)
v = CONFIG_KERNEL_START;
p = memory_start;
- for (s = 0; s < CONFIG_LOWMEM_SIZE; s += PAGE_SIZE) {
+ for (s = 0; s < lowmem_size; s += PAGE_SIZE) {
f = _PAGE_PRESENT | _PAGE_ACCESSED |
_PAGE_SHARED | _PAGE_HWEXEC;
if ((char *) v < _stext || (char *) v >= _etext)