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author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2015-09-13 02:25:26 (GMT) |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-09-22 07:13:57 (GMT) |
commit | 6ff0966052c46efb53980b8a1add2e7b49c9f560 (patch) | |
tree | 7fb25013442035b048936549be4dab2efc473f6e /arch/arm/Kconfig | |
parent | 803e3dbcb4cf80c898faccf01875f6ff6e5e76fd (diff) | |
download | linux-6ff0966052c46efb53980b8a1add2e7b49c9f560.tar.xz |
ARM: 8432/1: move VMALLOC_END from 0xff000000 to 0xff800000
There is a 12MB unused region in our memory map between the vmalloc and
fixmap areas. This became unused with commit e9da6e9905e6, confirmed
with commit 64d3b6a3f480.
We also have a 8MB guard area before the vmalloc area. With the default
240MB vmalloc area size and the current VMALLOC_END definition, that
means the end of low memory ends up at 0xef800000 which is unfortunate
for 768MB machines where 8MB of RAM is lost to himem.
Let's move VMALLOC_END to 0xff800000 so the guard area won't chop the
top of the 768MB low memory area while keeping the default vmalloc area
size unchanged and still preserving a gap between the vmalloc and fixmap
areas.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig')
0 files changed, 0 insertions, 0 deletions