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arm64: add support for memtest

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Add support for memtest command line option.

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Vladimir Murzin 2015-04-14 15:48:33 -07:00 committed by Linus Torvalds
parent 7f70baeeb9
commit 36dd9086cb
1 changed files with 2 additions and 0 deletions
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2
arch/arm64/mm/init.c
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@ -190,6 +190,8 @@ void __init bootmem_init(void)
min = PFN_UP(memblock_start_of_DRAM());
max = PFN_DOWN(memblock_end_of_DRAM());
early_memtest(min << PAGE_SHIFT, max << PAGE_SHIFT);
/*
* Sparsemem tries to allocate bootmem in memory_present(), so must be
* done after the fixed reservations.