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| author | Michal Simek <monstr@monstr.eu> | 2011-12-22 12:33:24 +0100 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2012-03-23 09:28:14 +0100 |
| commit | 7c0d26150781cbd8a522259c9dea9e7ef23df8e3 (patch) | |
| tree | f0324f4c59a50c74340ab198eda0832085e9be81 /arch/microblaze/mm | |
| parent | 2f2f371f8907d169650f594850ca6096e2f73b77 (diff) | |
| download | op-kernel-dev-7c0d26150781cbd8a522259c9dea9e7ef23df8e3.zip op-kernel-dev-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.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c index 84905da..d1c06d0 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) |
