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ARM: 8904/1: skip nomap memblocks while finding the lowmem/highmem boundary

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commit 1d31999cf0 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: Chester Lin <clin@suse.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chester Lin
2019-08-30 14:30:07 +01:00
committed by Greg Kroah-Hartman
parent 16af69a88f
commit 3cc1ac2f0b
1 changed files with 3 additions and 0 deletions
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3
arch/arm/mm/mmu.c
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@@ -1188,6 +1188,9 @@ 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)
/*