arm64: mm: update max_dma32 before calculating size of NORMAL zone

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Commit f483a853b0 ("arm64: mm: fix booting on systems with no memory
below 4GB") sets max_dma32 to the minimum of the maximum pfn and
MAX_DMA32_PFN. This value is later used as the base of the NORMAL zone,
which is incorrect when MAX_DMA32_PFN is below the minimum pfn (i.e. all
memory is above 4GB).

This patch fixes the problem by ensuring that max_dma32 is always set to
the end of the DMA32 zone.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Will Deacon 2012-11-12 19:19:35 +00:00 • committed by Catalin Marinas

parent 3495386b10

commit 938edf5c04

1 changed files with 2 additions and 2 deletions

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arch/arm64/mm/init.c

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