[Bug 101080] [APL/SKL/BDW] drv_selftest some subtests are failing "cannot allocate memory"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101080

--- Comment #5 from Chris Wilson <chris at chris-wilson.co.uk> ---
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 678723430d78..38ed006be5be 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -146,6 +146,9 @@ struct drm_i915_private *mock_gem_device(void)
        dev_set_name(&pdev->dev, "mock");
        dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));

+       /* hack to disable iommu for the fake device; force identity mapping */
+       pdev->dev.archdata.iommu = (void *)-1;
+
        dev_pm_domain_set(&pdev->dev, &pm_domain);
        pm_runtime_enable(&pdev->dev);
        pm_runtime_dont_use_autosuspend(&pdev->dev);

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