linux-kernel - Re: [PATCH 1/2] arm64: dts: qcom: sdm845-starqltechn: fix slpi reserved mem

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Message-ID: <d95fc175-359f-4559-b680-36de87d75a40@oss.qualcomm.com>
Date: Fri, 12 Sep 2025 12:58:46 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Dzmitry Sankouski <dsankouski@...il.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] arm64: dts: qcom: sdm845-starqltechn: fix slpi
 reserved mem

On 9/11/25 10:56 PM, Dzmitry Sankouski wrote:
> When adding adsp reserved mem, slpi reserved memory was shrunk
> according to vendor kernel log:
> 
> `Removed memory: created DMA memory pool at 0x0000000096700000, size 15 M`
> 
> However, kernel refuses to boot firmware with 15MiB reserved region.

Why so?

> Increase slpi reserved region to 16MiB.

It would make sense, given the PIL reserved range is now almost
contiguous (bar the hole between spss_mem and adsp_mem.. you might
want to check that one out as well)

Konrad

> 
> Fixes: 58782c229e3e ("arm64: dts: qcom: sdm845-starqltechn: add initial sound support")
> Signed-off-by: Dzmitry Sankouski <dsankouski@...il.com>
> ---
>  arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts b/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
> index 9eeb4b807465..32ce666fc57e 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
> @@ -118,7 +118,7 @@ removed_region: removed-region@...00000 {
>  		};
>  
>  		slpi_mem: slpi@...00000 {
> -			reg = <0 0x96700000 0 0xf00000>;
> +			reg = <0 0x96700000 0 0x1000000>;
>  			no-map;
>  		};
>  
>