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| author | Imre Deak <imre.deak@intel.com> | 2016-03-16 14:39:08 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2016-03-17 16:22:09 +0300 |
| commit | 4fec15d1bd8352b6fc1edd71ae35ab138df010fc (patch) | |
| tree | 4e6604045b5c5de8a33e3d47cc9c0677fc833723 /drivers/gpu/drm/i915/i915_params.h | |
| parent | 65ff442f6bca0e2247ff7acac6014bcea69d1f7e (diff) | |
| download | linux-4fec15d1bd8352b6fc1edd71ae35ab138df010fc.tar.xz | |
drm/i915: Add fault injection support
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: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_params.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h index 87153b0199cd..02bc27804291 100644 --- a/drivers/gpu/drm/i915/i915_params.h +++ b/drivers/gpu/drm/i915/i915_params.h @@ -49,6 +49,7 @@ struct i915_params { int use_mmio_flip; int mmio_debug; int edp_vswing; + unsigned int inject_load_failure; /* leave bools at the end to not create holes */ bool enable_hangcheck; bool fastboot; |