Subject: Re: [PATCH v7 10/11] iommu/arm-smmu-v3: Invoke pm_runtime before hw access

From: Nicolin Chen <[email-masked]>
Date: Thu, 28 May 2026 13:28:15 -0700

On Wed, May 27, 2026 at 10:14:06PM +0000, Pranjal Shrivastava wrote:
> TLB and CFG invalidations are
> elided if the SMMU is suspended by observing the CMDQ_PROD_STOP_FLAG via
> the arm_smmu_can_elide() helper.

All the arm_smmu_can_elide() call sites here would eventually elide
the commands in arm_smmu_cmdq_issue_cmdlist() that is already gated
by CMDQ_PROD_STOP_FLAG? It doesn't seem necessary to gate again?

Nicolin