diff options
Diffstat (limited to 'arch/powerpc/mm/40x_mmu.c')
| -rw-r--r-- | arch/powerpc/mm/40x_mmu.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/powerpc/mm/40x_mmu.c b/arch/powerpc/mm/40x_mmu.c index 58969b5..5810967 100644 --- a/arch/powerpc/mm/40x_mmu.c +++ b/arch/powerpc/mm/40x_mmu.c @@ -141,7 +141,19 @@ unsigned long __init mmu_mapin_ram(unsigned long top) * coverage with normal-sized pages (or other reasons) do not * attempt to allocate outside the allowed range. */ - memblock_set_current_limit(memstart_addr + mapped); + memblock_set_current_limit(mapped); return mapped; } + +void setup_initial_memory_limit(phys_addr_t first_memblock_base, + phys_addr_t first_memblock_size) +{ + /* We don't currently support the first MEMBLOCK not mapping 0 + * physical on those processors + */ + BUG_ON(first_memblock_base != 0); + + /* 40x can only access 16MB at the moment (see head_40x.S) */ + memblock_set_current_limit(min_t(u64, first_memblock_size, 0x00800000)); +} |