• Rob Clark's avatar
    drm/msm: return -EBUSY if bo still active · f816f272
    Rob Clark authored
    When we CPU_PREP a bo with NOSYNC flag (for example, to implement
    PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE), an -EBUSY return indicates to
    userspace that the bo is still busy.  Previously it was incorrectly
    returning 0 in this case.
    
    And while we're in there throw in an bit of extra sanity checking in
    case userspace tries to wait for a bogus fence.
    Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
    f816f272
msm_drv.h 7.11 KB