diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/mm/numa_64.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 3232148756c..02f13cb99bc 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -163,14 +163,27 @@ static void * __init early_node_mem(int nodeid, unsigned long start, unsigned long end, unsigned long size, unsigned long align) { - unsigned long mem = find_e820_area(start, end, size, align); + unsigned long mem; + /* + * put it on high as possible + * something will go with NODE_DATA + */ + if (start < (MAX_DMA_PFN<<PAGE_SHIFT)) + start = MAX_DMA_PFN<<PAGE_SHIFT; + if (start < (MAX_DMA32_PFN<<PAGE_SHIFT) && + end > (MAX_DMA32_PFN<<PAGE_SHIFT)) + start = MAX_DMA32_PFN<<PAGE_SHIFT; + mem = find_e820_area(start, end, size, align); if (mem != -1L) return __va(mem); - - start = __pa(MAX_DMA_ADDRESS); - end = max_low_pfn_mapped << PAGE_SHIFT; + /* extend the search scope */ + end = max_pfn_mapped << PAGE_SHIFT; + if (end > (MAX_DMA32_PFN<<PAGE_SHIFT)) + start = MAX_DMA32_PFN<<PAGE_SHIFT; + else + start = MAX_DMA_PFN<<PAGE_SHIFT; mem = find_e820_area(start, end, size, align); if (mem != -1L) return __va(mem); |