• Chris Brandt's avatar
    ARM: 8518/1: Use correct symbols for XIP_KERNEL · 02afa9a8
    Chris Brandt authored
    For an XIP build, _etext does not represent the end of the
    binary image that needs to stay mapped into the MODULES_VADDR area.
    Years ago, data came before text in the memory map. However,
    now that the order is text/init/data, an XIP_KERNEL needs to map
    up to the data location in order to keep from cutting off
    parts of the kernel that are needed.
    We only map up to the beginning of data because data has already been
    copied, so there's no reason to keep it around anymore.
    A new symbol is created to make it clear what it is we are referring
    to.
    
    This fixes the bug where you might lose the end of your kernel area
    after page table setup is complete.
    Signed-off-by: default avatarChris Brandt <chris.brandt@renesas.com>
    Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
    02afa9a8
mmu.c 44.2 KB