linux-kernel - [PATCH 0/2] iommu/vt-d: Add ESRTPS & ESIRTPS check

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Date:   Mon, 19 Sep 2022 14:25:21 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     iommu@...ts.linux.dev
Cc:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Kevin Tian <kevin.tian@...el.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        linux-kernel@...r.kernel.org, Lu Baolu <baolu.lu@...ux.intel.com>
Subject: [PATCH 0/2] iommu/vt-d: Add ESRTPS & ESIRTPS check

Hi folks,

Some VT-d hardware implementations invalidates all DMA remapping
or interrupt remapping hardware translation caches as part of SRTP or
SIRTPS flow. The VT-d spec introduced two capability bits for these
hardware behaviors. This series fine tuned the VT-d driver to avoid
unnecessary global cache validations.

Best regards,
baolu

Lu Baolu (2):
  iommu/vt-d: Avoid unnecessary global IRTE cache invalidation
  iommu/vt-d: Avoid unnecessary global DMA cache invalidation

 drivers/iommu/intel/iommu.h         | 2 ++
 drivers/iommu/intel/iommu.c         | 7 +++++++
 drivers/iommu/intel/irq_remapping.c | 3 ++-
 3 files changed, 11 insertions(+), 1 deletion(-)

-- 
2.34.1