Messages in this thread | | | From | Catalin Marinas <> | Subject | Re: [PATCH] arm64: mm: Fix ARCH_LOW_ADDRESS_LIMIT when !CONFIG_ZONE_DMA | Date | Mon, 4 Jan 2021 11:49:34 +0000 |
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On Fri, 18 Dec 2020 17:33:07 +0100, Nicolas Saenz Julienne wrote: > Systems configured with CONFIG_ZONE_DMA32, CONFIG_ZONE_NORMAL and > !CONFIG_ZONE_DMA will fail to properly setup ARCH_LOW_ADDRESS_LIMIT. The > limit will default to ~0ULL, effectively spanning the whole memory, > which is too high for a configuration that expects low memory to be > capped at 4GB. > > Fix ARCH_LOW_ADDRESS_LIMIT by falling back to arm64_dma32_phys_limit > when arm64_dma_phys_limit isn't set. arm64_dma32_phys_limit will honour > CONFIG_ZONE_DMA32, or span the entire memory when not enabled.
Applied to arm64 (for-next/fixes), thanks!
[1/1] arm64: mm: Fix ARCH_LOW_ADDRESS_LIMIT when !CONFIG_ZONE_DMA https://git.kernel.org/arm64/c/095507dc1350
-- Catalin
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