linux-kernel - [PATCH RFC 0/5] iommu/vt-d: Create a cache_tag

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Date: Fri, 28 Jun 2024 14:27:38 +0200
From: Joel Granados via B4 Relay <devnull+j.granados.samsung.com@...nel.org>
To: David Woodhouse <dwmw2@...radead.org>, 
 Lu Baolu <baolu.lu@...ux.intel.com>, Joerg Roedel <joro@...tes.org>, 
 Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>
Cc: iommu@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 Joel Granados <j.granados@...sung.com>
Subject: [PATCH RFC 0/5] iommu/vt-d: Create a cache_tag_id to reduce
 argument passing

Does it make sense to replace 4 arguments (domain id, dev, pasid and
type) with just one (cache_tag_id) in the {un}assignment functions in
drivers/iommu/intel/cache.c?

In working with this file I made a few changes so I could understand it
a bit better (no functional modifications). I can keep going if ppl see
that it make sense.

Comments are greatly appreciated.

Signed-off-by: Joel Granados <j.granados@...sung.com>
---
Joel Granados (5):
      iommu/vt-d: introduce cache_tag_id to the struct cache_tag
      iommu/vt-d: Replace cache_tag_match with a tag comparison function
      iommu/vt-d: Pass cache_tag_id to {un}assignment functions
      iommu/vt-d: Use ats_enable as an argument
      iommu/vt-d: Remove dev_iommu_priv_get call from domain_get_id_for_dev

 drivers/iommu/intel/cache.c | 184 ++++++++++++++++++++++----------------------
 drivers/iommu/intel/iommu.h |  24 +++---
 2 files changed, 104 insertions(+), 104 deletions(-)
---
base-commit: bcace518c52fd7d786a9093711e84847db98e1ef
change-id: 20240628-jag-revisit_cache_tag_assign-1984d808369f

Best regards,
-- 
Joel Granados <j.granados@...sung.com>