iommu/vt-d: Use pci_ats_supported()

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The pci_ats_supported() helper checks if a device supports ATS and is
allowed to use it. By checking the ATS capability it also integrates the
pci_ats_disabled() check from pci_ats_init(). Simplify the vt-d checks.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20200520152201.3309416-5-jean-philippe@linaro.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Jean-Philippe Brucker 2020-05-20 17:22:03 +02:00 • committed by Joerg Roedel

parent 0b2527a654

commit da656a0425

1 changed files with 3 additions and 6 deletions

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drivers/iommu/intel-iommu.c

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