Re: [PATCH v1 0/4] arm64: dts: qcom: Make ADSP remote heaps no-map

From: Bjorn Andersson

Date: Sun Nov 08 2026 - 15:29:22 EST



On Thu, 15 Oct 2026 15:15:07 +0800, Jianping Li wrote:
> Several Qualcomm platforms declare the ADSP remote heap as a reusable
> shared DMA pool. This allows the kernel to reuse the region for movable
> allocations.
>
> When FastRPC assigns the entire region to the DSP without first
> allocating its pages from CMA, those pages remain available for HLOS
> allocations despite HLOS access permissions having been revoked.
> Subsequent kernel accesses can therefore cause synchronous external
> aborts.
>
> [...]

Applied, thanks!

[1/4] arm64: dts: qcom: kodiak: Make the ADSP remote heap no-map
commit: 0848803d3508bcc5ebce717e049e3b0066059037
[2/4] arm64: dts: qcom: glymur: Make the ADSP remote heap no-map
commit: bcd702e52ae0a480b3f24f8838aedb1ee1ec25cb
[3/4] arm64: dts: qcom: sm8250: Make the ADSP remote heap no-map
commit: c5e78d1c30a53ca7130223c2c742c8840a8c9970
[4/4] arm64: dts: qcom: sm8750: Make the ADSP remote heap no-map
commit: 730aae8cf388064ea5ff8df5293019f53a7422dc

Best regards,
--
Bjorn Andersson <andersson@xxxxxxxxxx>