Commit 5db6c735 authored Mar 31, 2014 by Daniel Vetter

drm/i915: dmesg output for VT-d testing



Our validation guys want to have a positive proof that the gfx driver
is indeed using VT-d, since setting up a gfx stack, especially in
early bring-up and by people not versed in linux gfx is a bit tricky.
So provide just that.

Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 7a10dfa6

drivers/gpu/drm/i915/i915_gem_gtt.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1961,6 +1961,10 @@ int i915_gem_gtt_init(struct drm_device *dev)
		gtt->base.total >> 20);
		DRM_DEBUG_DRIVER("GMADR size = %ldM\n", gtt->mappable_end >> 20);
		DRM_DEBUG_DRIVER("GTT stolen size = %zdM\n", gtt->stolen_size >> 20);
		#ifdef CONFIG_INTEL_IOMMU
		if (intel_iommu_gfx_mapped)
		DRM_INFO("VT-d active for gfx access\n");
		#endif

		return 0;
		}

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