• Imre Deak's avatar
    drm/i915: Add fault injection support · 4fec15d1
    Imre Deak authored
    Add support for forcing an error at selected places in the driver. As an
    example add 4 options to fail during driver loading.
    
    Requested by Chris.
    
    v2:
    - Add fault point for modeset initialization
    - Print debug message when injecting an error
    v3:
    - Rename inject_fault to inject_load_failure, rename the related macros
      and helper accordingly (Chris)
    - Use a counter instead of a mask to identify the failure point (Daniel)
    - Mark the module option as _unsafe and keep i915_params ordered (Joonas)
    v4:
    - Rebase on latest -nightly
    v5:
    - Use DRM_INFO instead of DRM_DEBUG_DRIVER, making it clearer in CI reports
      that a following error message is expected (IRC r-b from Chris on v5)
    
    CC: Chris Wilson <chris@chris-wilson.co.uk>
    CC: Daniel Vetter <daniel.vetter@ffwll.ch>
    CC: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
    Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
    Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
    4fec15d1
i915_params.h 2.04 KB