[PATCH v2 0/4] iommu/amd: Enable page-selective flushes

[Nadav Amit]

From: Nadav Amit <namit@xxxxxxxxxx>

The previous patch, commit 268aa4548277 ("iommu/amd: Page-specific
invalidations for more than one page") was supposed to enable
page-selective IOTLB flushes on AMD.

The patch had an embaressing bug, and I apologize for it.

Analysis as for why this bug did not result in failures raised
additional issues that caused at least most of the IOTLB flushes not to
be page-selective ones.

The first patch corrects the bug from the previous patch. The next
patches enable page-selective invalidations, which were not enabled
despite the previous patch.

Cc: Joerg Roedel <joro@xxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Jiajun Cao <caojiajun@xxxxxxxxxx>
Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx

---

v1->v2:
* Rebase on v5.13-rc3

Nadav Amit (4):
  iommu/amd: Fix wrong parentheses on page-specific invalidations
  iommu/amd: Selective flush on unmap
  iommu/amd: Do not sync on page size changes
  iommu/amd: Do not use flush-queue when NpCache is on

 drivers/iommu/amd/init.c  |  7 ++++++-
 drivers/iommu/amd/iommu.c | 18 +++++++++++++++---
 include/linux/iommu.h     |  3 ++-
 3 files changed, 23 insertions(+), 5 deletions(-)

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2.25.1