2020-03-16 19:41:03 +00:00
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From c17f622cbb33332a305ef383506740d3d01aa831 Mon Sep 17 00:00:00 2001
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From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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Date: Wed, 11 Sep 2019 20:25:43 +0200
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Subject: [PATCH] arm64: mm: use arm64_dma_phys_limit instead of
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calling max_zone_dma_phys()
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commit ae970dc096b2d39f65f2e18d142e3978dc9ee1c7 upstream.
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By the time we call zones_sizes_init() arm64_dma_phys_limit already
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contains the result of max_zone_dma_phys(). We use the variable instead
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of calling the function directly to save some precious cpu time.
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Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
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Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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---
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arch/arm64/mm/init.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/arm64/mm/init.c
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+++ b/arch/arm64/mm/init.c
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2021-01-30 14:37:13 +00:00
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@@ -181,7 +181,7 @@ static void __init zone_sizes_init(unsig
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2020-03-16 19:41:03 +00:00
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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(max_zone_dma_phys());
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+ max_zone_pfns[ZONE_DMA32] = PFN_DOWN(arm64_dma_phys_limit);
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#endif
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max_zone_pfns[ZONE_NORMAL] = max;
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