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Commit 32b23e9a authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar
Browse files

x86: max_low_pfn_mapped fix #4 



only add direct mapping for aperture

Signed-off-by: default avatarYinghai Lu <yhlu.kernel@gmail.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 11369f35

arch/x86/kernel/pci-gart_64.c

+2 −5
Original line number Diff line number Diff line
@@ -679,11 +679,8 @@ static __init int init_k8_gatt(struct agp_kern_info *info) 
	/* need to map that range */

	end_pfn = (aper_base>>PAGE_SHIFT) + (aper_size>>PAGE_SHIFT);

	if (end_pfn > max_low_pfn_mapped) {

		start_pfn = max_low_pfn_mapped;

		max_low_pfn_mapped = init_memory_mapping(start_pfn<<PAGE_SHIFT,

							 end_pfn<<PAGE_SHIFT);

		if (max_pfn_mapped < max_low_pfn_mapped)

			max_pfn_mapped = max_low_pfn_mapped;

		start_pfn = (aper_base>>PAGE_SHIFT);

		init_memory_mapping(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);

	}

	return 0;