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Unverified Commit d5fad48c authored by Zong Li's avatar Zong Li Committed by Palmer Dabbelt
Browse files

RISC-V: Add conditional macro for zone of DMA32 



The DMA32 is for 64-bit usage.

Signed-off-by: default avatarZong Li <zong@andestech.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarPalmer Dabbelt <palmer@sifive.com>
parent 021c9179

arch/riscv/mm/init.c

+2 −0
Original line number Diff line number Diff line
@@ -28,7 +28,9 @@ static void __init zone_sizes_init(void) 
{

	unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, };



#ifdef CONFIG_ZONE_DMA32

	max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G, max_low_pfn));

#endif

	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;



	free_area_init_nodes(max_zone_pfns);