On Tue, Nov 09, 2021 at 12:17:59PM +0000, Tvrtko Ursulin wrote:
From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> On igfx + dgfx setups, it appears that intel_iommu=igfx_off option only disables the igfx iommu. Stop relying on global intel_iommu_gfx_mapped and probe presence of iommu domain per device to accurately reflect its status.
nice, I was just starting to look into thus but for another reason: we are adding support for other archs, like aarch64, and the global from here was a problem should we change drivers/gpu/drm/i915/Kconfig.debug to stop selecting CONFIG_INTEL_IOMMU and CONFIG_INTEL_IOMMU_DEFAULT_ON? thanks Lucas De Marchi