• Eric Anholt's avatar
    drm/i915: Fix tiling pitch handling on 8xx. · e76a16de
    Eric Anholt authored
    The pitch field is an exponent on pre-965, so we were rejecting buffers
    on 8xx that we shouldn't have.  915 got lucky in that the largest legal
    value happened to match (8KB / 512 = 0x10), but 8xx has a smaller tile width.
    Additionally, we programmed that bad value into the register on 8xx, so the
    only pitch that would work correctly was 4096 (512-1023 pixels), while others
    would probably give bad rendering or hangs.
    Signed-off-by: default avatarEric Anholt <eric@anholt.net>
    
    fd.o bug #20473.
    e76a16de
i915_reg.h 51.3 KB