RISC-V: Add conditional macro for zone of DMA32
The DMA32 is for 64-bit usage. Signed-off-by: Zong Li <zong@andestech.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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@ -28,7 +28,9 @@ static void __init zone_sizes_init(void)
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{
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unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, };
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#ifdef CONFIG_ZONE_DMA32
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max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G, max_low_pfn));
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#endif
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max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
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free_area_init_nodes(max_zone_pfns);
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