Add a fault injection point in the WOPCM initialization path.
v4:
Move the injection inside the WOPCM init function.
Signed-off-by: Jakub Bartmiński <jakub.bartminski@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Michał Winiarski <michal.winiarski@xxxxxxxxx>
Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_wopcm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_wopcm.c b/drivers/gpu/drm/i915/intel_wopcm.c
index 09cc62b0d7ca..92cb82dd0c07 100644
--- a/drivers/gpu/drm/i915/intel_wopcm.c
+++ b/drivers/gpu/drm/i915/intel_wopcm.c
@@ -168,6 +168,9 @@ int intel_wopcm_init(struct intel_wopcm *wopcm)
GEM_BUG_ON(!wopcm->size);
+ if (i915_inject_load_failure())
+ return -E2BIG;
+
if (guc_fw_size >= wopcm->size) {
DRM_ERROR("GuC FW (%uKiB) is too big to fit in WOPCM.",
guc_fw_size / 1024);
--
2.17.1
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