Commit ae970dc0 authored Sep 11, 2019 by Nicolas Saenz Julienne Committed by Catalin Marinas Oct 14, 2019

arm64: mm: use arm64_dma_phys_limit instead of calling max_zone_dma_phys()

By the time we call zones_sizes_init() arm64_dma_phys_limit already
contains the result of max_zone_dma_phys(). We use the variable instead
of calling the function directly to save some precious cpu time.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

parent 4f5cafb5

arch/arm64/mm/init.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -187,7 +187,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
		unsigned long max_zone_pfns[MAX_NR_ZONES] = {0};

		#ifdef CONFIG_ZONE_DMA32
		max_zone_pfns[ZONE_DMA32] = PFN_DOWN(max_zone_dma_phys());
		max_zone_pfns[ZONE_DMA32] = PFN_DOWN(arm64_dma_phys_limit);
		#endif
		max_zone_pfns[ZONE_NORMAL] = max;