• James Jones's avatar
    drm/nouveau/mmu: Add correct turing page kinds · 176ada03
    James Jones authored
    Turing introduced a new simplified page kind
    scheme, reducing the number of possible page
    kinds from 256 to 16.  It also is the first
    NVIDIA GPU in which the highest possible page
    kind value is not reserved as an "invalid" page
    kind.
    
    To address this, the invalid page kind is made
    an explicit property of the MMU HAL, and a new
    table of page kinds is added to the tu102 MMU
    HAL.
    
    One hardware change not addressed here is that
    0x00 is technically no longer a supported page
    kind, and pitch surfaces are instead intended to
    share the block-linear generic page kind 0x06.
    However, because that will be a rather invasive
    change to nouveau and 0x00 still works fine in
    practice on Turing hardware, addressing this new
    behavior is deferred.
    Signed-off-by: default avatarJames Jones <jajones@nvidia.com>
    Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
    176ada03
gf100.c 3.62 KB