path: root/arch/microblaze/include
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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/include
parent2f2f371f8907d169650f594850ca6096e2f73b77 (diff)
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/include')
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
index 665f29330ce..352cc2352bd 100644
--- a/arch/microblaze/include/asm/page.h
+++ b/arch/microblaze/include/asm/page.h
@@ -136,6 +136,7 @@ extern unsigned long max_pfn;
extern unsigned long memory_start;
extern unsigned long memory_size;
+extern unsigned long lowmem_size;
extern int page_is_ram(unsigned long pfn);