On Wed, 16 Nov 2011 21:18:13 +0100, Daniel Vetter <daniel.vetter at ffwll.ch> wrote: > Last time I've played around with all the combinations, only > intel_iommu=off was good enough to prevent the hang. > intel_iommu=igd_off still hangs (which is what the current value > exported by the dmar code dopends on, iirc). If I remember things > correctly, intel_iommu=off also reliably works around issues for all > reporters (both semaphores and rc6). So, the dmar_disabled flag would suffice? Should be trivial to export that and check in our driver. -- keith.packard at intel.com -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 827 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20111116/34e8f736/attachment.pgp>
