diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0442-arm64-mm-use-arm64_dma_phys_limit-instead-of-calling.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0442-arm64-mm-use-arm64_dma_phys_limit-instead-of-calling.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0442-arm64-mm-use-arm64_dma_phys_limit-instead-of-calling.patch b/target/linux/bcm27xx/patches-5.4/950-0442-arm64-mm-use-arm64_dma_phys_limit-instead-of-calling.patch new file mode 100644 index 0000000000..a90e7f8587 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0442-arm64-mm-use-arm64_dma_phys_limit-instead-of-calling.patch @@ -0,0 +1,30 @@ +From c17f622cbb33332a305ef383506740d3d01aa831 Mon Sep 17 00:00:00 2001 +From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> +Date: Wed, 11 Sep 2019 20:25:43 +0200 +Subject: [PATCH] arm64: mm: use arm64_dma_phys_limit instead of + calling max_zone_dma_phys() + +commit ae970dc096b2d39f65f2e18d142e3978dc9ee1c7 upstream. + +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> +--- + arch/arm64/mm/init.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm64/mm/init.c ++++ b/arch/arm64/mm/init.c +@@ -187,7 +187,7 @@ static void __init zone_sizes_init(unsig + 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; + |