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microblaze: mm: Fix lowmem max memory size limits

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Use CONFIG_LOWMEM_SIZE if system has larger ram size.
For system with larger ram size, enable HIGMEM support.

Also setup limitation for memblock and use memblock
allocation in lowmem region.

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek
2011-12-19 13:46:35 +01:00
parent 4e2e4124b7
commit 83a92529c1
5 changed files with 46 additions and 34 deletions
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2
arch/microblaze/include/asm/uaccess.h
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@@ -80,7 +80,7 @@ extern unsigned long search_exception_table(unsigned long);
static inline int ___range_ok(unsigned long addr, unsigned long size)
{
return ((addr < memory_start) ||
((addr + size) > memory_end));
((addr + size - 1) > (memory_start + memory_size - 1)));
}
#define __range_ok(addr, size) \