• Nicolas Pitre's avatar
    ARM: 8432/1: move VMALLOC_END from 0xff000000 to 0xff800000 · 6ff09660
    Nicolas Pitre authored
    There is a 12MB unused region in our memory map between the vmalloc and
    fixmap areas. This became unused with commit e9da6e99, confirmed
    with commit 64d3b6a3.
    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
    Signed-off-by: default avatarNicolas Pitre <nico@linaro.org>
    Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
memory.txt 3.13 KB