Re: [PATCH v11 12/16] iommu/tegra241-cmdqv: Add a helper to quiesce VCMDQs

On Wed, Sep 30, 2026 at 07:57:12PM +0000, Pranjal Shrivastava wrote:

I'm planning to add an impl->suspend op now.. that will cover this, and
also the late breaking IRQ changes you're referring to in the other
thread. Roughly:
 - set STOP_FLAG on all lvcmdqs
 - wait for owners & drain all lvcmdqs
 - handle any pending CMDQV errors
 - tegra241_vintf_hw_deinit(vintf0)

I'll call it from arm_smmu_runtime_suspend() before gating the main
CMDQ, so the CMD_SYNC in tegra241_vcmdq_hw_flush_timeout() still goes
through and any late cmd simply falls back to smmu->cmdq.

That sounds good to me.

Nicolin