x86: make e820_end return end_of_ram again for 64bit
even on 64bit systems with less than 4G RAM, we can now use fixmap to handle acpi SIT near end of ram. change e820_end to e820_end_of_ram again? or e820_ram_pfn? Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -1066,10 +1066,8 @@ unsigned long __init e820_end(void)
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struct e820entry *ei = &e820.map[i];
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struct e820entry *ei = &e820.map[i];
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unsigned long end_pfn;
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unsigned long end_pfn;
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#ifdef CONFIG_X86_32
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if (ei->type != E820_RAM)
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if (ei->type != E820_RAM)
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continue;
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continue;
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#endif
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end_pfn = (ei->addr + ei->size) >> PAGE_SHIFT;
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end_pfn = (ei->addr + ei->size) >> PAGE_SHIFT;
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if (end_pfn > last_pfn)
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if (end_pfn > last_pfn)
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