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Commit e02f1448 authored by Chester Lin's avatar Chester Lin Committed by Greg Kroah-Hartman
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ARM: 8904/1: skip nomap memblocks while finding the lowmem/highmem boundary 



commit 1d31999cf04c21709f72ceb17e65b54a401330da upstream.

adjust_lowmem_bounds() checks every memblocks in order to find the boundary
between lowmem and highmem. However some memblocks could be marked as NOMAP
so they are not used by kernel, which should be skipped while calculating
the boundary.

Signed-off-by: default avatarChester Lin <clin@suse.com>
Reviewed-by: default avatarMike Rapoport <rppt@linux.ibm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 046f0fcf

arch/arm/mm/mmu.c

+3 −0
Original line number Diff line number Diff line
@@ -1195,6 +1195,9 @@ void __init adjust_lowmem_bounds(void) 
		phys_addr_t block_start = reg->base;

		phys_addr_t block_end = reg->base + reg->size;



		if (memblock_is_nomap(reg))

			continue;



		if (reg->base < vmalloc_limit) {

			if (block_end > lowmem_limit)

				/*