• Dave Airlie's avatar
    drm: set FMODE_UNSIGNED_OFFSET for drm files · 76ef6b28
    Dave Airlie authored
    Since we have the ttm and gem vma managers using a subset
    of the file address space for objects, and these start at
    0x100000000 they will overflow the new mmap checks.
    
    I've checked all the mmap routines I could see for any
    bad behaviour but overall most people use GEM/TTM VMA
    managers even the legacy drivers have a hashtable.
    
    Reported-and-Tested-by: Arthur Marsh (amarsh04 on #radeon)
    Fixes: be83bbf8 (mmap: introduce sane default mmap limits)
    Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
    76ef6b28
drm_file.c 21.2 KB