Re: [PATCH v6 0/4] ASoC: qcom: enable audio on stage-2 protected DSPs (mDSP)

[Mark Brown]

On Wed, 23 Sep 2026 22:03:37 +0530, Ajay Kumar Nandam wrote:
> ASoC: qcom: enable audio on stage-2 protected DSPs (mDSP)
> 
> On platforms such as Qualcomm Shikra, audio is served by the modem DSP
> (mDSP) rather than the ADSP. The mDSP runs in a stage-2 protected context
> and cannot use the SMMU, so the PCM buffers it consumes must live in
> reserved-memory carveouts that are handed to the consumer VMIDs via a
> hypervisor (SCM) memory assignment. This series adds that access model to
> the q6apm DAI driver and its binding, alongside the existing stage-1/SMMU
> (iommus) path, which is left untouched.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-7.4

Thanks!

[1/4] ASoC: qcom: q6apm: clear g_apm on driver removal
      https://git.kernel.org/broonie/sound/c/be2172758f2b
[2/4] ASoC: qcom: qdsp6: generalize GPR service domain
      https://git.kernel.org/broonie/sound/c/d3ad9ee48425
[3/4] ASoC: dt-bindings: qcom,q6apm-dai: add memory-region and relax iommus
      https://git.kernel.org/broonie/sound/c/7ff0bdaf9292
[4/4] ASoC: qcom: q6apm-dai: add SCM buffer assignment for mDSP platforms
      https://git.kernel.org/broonie/sound/c/bb8afd437d79

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

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Thanks,
Mark