[PATCH v7 11/11] iommu/arm-smmu-v3: Add KUnit unit tests for Runtime PM

[Nicolin Chen]

On Thu, May 28, 2026 at 11:10:50PM +0000, Pranjal Shrivastava wrote:
> On Thu, May 28, 2026 at 02:43:57PM -0700, Nicolin Chen wrote:
> > On Wed, May 27, 2026 at 10:14:07PM +0000, Pranjal Shrivastava wrote:
> > > Introduce a kunit selftests to verify the Runtime PM elision gating,
> > > post-suspend elisions and progress on resumption under active
> > > invalidation load. Simulate concurrent HW suspension using a timer.
> > > Mock all HW registers and CMDQ buffers by allocating them on RAM.
> > > Make the mock CMDQ self-consuming to avoid hitting queue_full scenarios.
> > > 
> > > Signed-off-by: Pranjal Shrivastava <praan at google.com>
> > 
> > Maybe I am wrong, yet this reads like an entirely AI-generated code.
> > So, should it have an Assisted-by?
> > 
> 
> Agh, It appears I made an error during the final send and mistakenly
> posted an old WIP version of this patch! I created a patch file before
> committing the final changes. This has remnants of older experiments and 
> lacks severals other cleanups!
> 
> I'm aware of the AI usage guidelines. However, this is not an entirely AI
> generated patch, it's a pre-cleanup snapshot of a WIP version where I had
> multiple rpm tests (an attempt to use kthreads to simulate races) that
> were using shared functions like the mock_cmdq etc. remnants of which 
> are seen in this patch. *FACEPALM*.

It'd be still very nice to have a KUNIT coverage.

Nicolin