Re: [PATCH v9 00/12] iommu/arm-smmu-v3: Implement Runtime/System Sleep ops

[Pranjal Shrivastava <praan@google.com>]

On Tue, Aug 25, 2026 at 10:33:42AM -0300, Jason Gunthorpe wrote:
> On Tue, Jul 28, 2026 at 09:09:16PM +0000, Pranjal Shrivastava wrote:
> 
> > [v9]
> >  - Replaced atomic_fetch_or_relaxed() with atomic_fetch_or() for
> >    correct ordering while asserting the STOP_FLAG
> >  - Moved arm_smmu_drain_queues() after the cmdq->lock wait loop in
> >    runtime_suspend() as per feedback in v8.
> >  - Refactored suspend sequence to use arm_smmu_disable_irqs() and
> >    synchronize_irq() for safe GERROR handling.
> >  - Fixed an off-by-one error in suspend polling timeouts.
> >  - Dropped arm_smmu_cmdq_can_elide() check from inv_range
> >  - Renamed arm_smmu_cmdq_can_elide() to arm_smmu_is_active().
> >  - Removed redundant bitwise masking from owner_prod reads.
> >  - Added comments to explain locking, gating and elision better.
> >  - Added comments to explain secondary cmdq draining and gating.
> >  - Rebased on arm/smmu/updates
> 
> There are alot of scary looking sashiko remarks, are you planning to
> resend this with some of them addressed?
> 

Yes, I was first hoping to discuss them on the list! Thanks a lot for
initiating that discussion :) 

[BTW, I'm interested to know if you used some tool to pull in sashiko
feedback in your replies, such a tool seems helpful!]

Thanks,
Praan