Fix missing case for concatenation

[PATCH v2 0/2] Fix missing case for concatenation

Posted by Mostafa Saleh 1 year, 2 months ago

First patch fixes a missing case for 16K granule and 40 bits SMMUs
where concatenation is mandatory but ignored.

Second patch, imporves coverage of OAS in selftests to make it
possible to test all concatenation cases.

Cc: Daniel Mentz <danielmentz@google.com>

Mostafa Saleh (2):
  iommu/io-pgtable-arm: Fix stage-2 concatenation with 16K
  iommu/io-pgtable-arm: Add coverage for different OAS in selftest

 drivers/iommu/io-pgtable-arm.c | 72 ++++++++++++++++++++++------------
 1 file changed, 48 insertions(+), 24 deletions(-)

-- 
V2:
- Rely on OAS and don't assume OAS = IAS
- Re-write the comment and commit message to be more clear
- Improve selftests
V1: https://lore.kernel.org/linux-iommu/20241115172235.1493328-1-smostafa@google.com/

2.47.0.338.g60cca15819-goog

Re: [PATCH v2 0/2] Fix missing case for concatenation

Posted by Will Deacon 1 year, 1 month ago

On Mon, 02 Dec 2024 14:06:02 +0000, Mostafa Saleh wrote:
> First patch fixes a missing case for 16K granule and 40 bits SMMUs
> where concatenation is mandatory but ignored.
> 
> Second patch, imporves coverage of OAS in selftests to make it
> possible to test all concatenation cases.
> 
> Cc: Daniel Mentz <danielmentz@google.com>
> 
> [...]

Applied to will (for-joerg/arm-smmu/updates), thanks!

[1/2] iommu/io-pgtable-arm: Fix stage-2 concatenation with 16K
      https://git.kernel.org/will/c/4dcac8407fe1
[2/2] iommu/io-pgtable-arm: Add coverage for different OAS in selftest
      https://git.kernel.org/will/c/376ce8b35ed1

Cheers,
-- 
Will

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