arm64: dts: qcom: sm8650: Fix CDSP context banks unit addresses

[PATCH] arm64: dts: qcom: sm8650: Fix CDSP context banks unit addresses

Posted by Krzysztof Kozlowski 2 weeks, 5 days ago

There is a mismatch between 'reg' property and unit address for last
there CDSP compute context banks.  Current values were taken as-is from
downstream source.  Considering that 'reg' is used by Linux driver as
SID of context bank and that least significant bytes of IOMMU value
match the 'reg', assume the unit-address is wrong and needs fixing.
This also won't have any practical impact, except adhering to Devicetree
spec.

Fixes: dae8cdb0a9e1 ("arm64: dts: qcom: sm8650: Add three missing fastrpc-compute-cb nodes")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8650.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
index 3d8a807a81c9..367fdd090768 100644
--- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
@@ -5622,7 +5622,7 @@ compute-cb@8 {
 
 					/* note: secure cb9 in downstream */
 
-					compute-cb@10 {
+					compute-cb@12 {
 						compatible = "qcom,fastrpc-compute-cb";
 						reg = <12>;
 
@@ -5632,7 +5632,7 @@ compute-cb@10 {
 						dma-coherent;
 					};
 
-					compute-cb@11 {
+					compute-cb@13 {
 						compatible = "qcom,fastrpc-compute-cb";
 						reg = <13>;
 
@@ -5642,7 +5642,7 @@ compute-cb@11 {
 						dma-coherent;
 					};
 
-					compute-cb@12 {
+					compute-cb@14 {
 						compatible = "qcom,fastrpc-compute-cb";
 						reg = <14>;
 
-- 
2.43.0

Re: [PATCH] arm64: dts: qcom: sm8650: Fix CDSP context banks unit addresses

Posted by neil.armstrong@linaro.org 2 weeks, 5 days ago

On 04/11/2024 15:42, Krzysztof Kozlowski wrote:
> There is a mismatch between 'reg' property and unit address for last
> there CDSP compute context banks.  Current values were taken as-is from
> downstream source.  Considering that 'reg' is used by Linux driver as
> SID of context bank and that least significant bytes of IOMMU value
> match the 'reg', assume the unit-address is wrong and needs fixing.
> This also won't have any practical impact, except adhering to Devicetree
> spec.
> 
> Fixes: dae8cdb0a9e1 ("arm64: dts: qcom: sm8650: Add three missing fastrpc-compute-cb nodes")
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
>   arch/arm64/boot/dts/qcom/sm8650.dtsi | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> index 3d8a807a81c9..367fdd090768 100644
> --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> @@ -5622,7 +5622,7 @@ compute-cb@8 {
>   
>   					/* note: secure cb9 in downstream */
>   
> -					compute-cb@10 {
> +					compute-cb@12 {
>   						compatible = "qcom,fastrpc-compute-cb";
>   						reg = <12>;
>   
> @@ -5632,7 +5632,7 @@ compute-cb@10 {
>   						dma-coherent;
>   					};
>   
> -					compute-cb@11 {
> +					compute-cb@13 {
>   						compatible = "qcom,fastrpc-compute-cb";
>   						reg = <13>;
>   
> @@ -5642,7 +5642,7 @@ compute-cb@11 {
>   						dma-coherent;
>   					};
>   
> -					compute-cb@12 {
> +					compute-cb@14 {
>   						compatible = "qcom,fastrpc-compute-cb";
>   						reg = <14>;
>   

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Re: [PATCH] arm64: dts: qcom: sm8650: Fix CDSP context banks unit addresses

Posted by Konrad Dybcio 2 weeks, 5 days ago

On 4.11.2024 3:42 PM, Krzysztof Kozlowski wrote:
> There is a mismatch between 'reg' property and unit address for last
> there CDSP compute context banks.  Current values were taken as-is from
> downstream source.  Considering that 'reg' is used by Linux driver as
> SID of context bank and that least significant bytes of IOMMU value
> match the 'reg', assume the unit-address is wrong and needs fixing.
> This also won't have any practical impact, except adhering to Devicetree
> spec.
> 
> Fixes: dae8cdb0a9e1 ("arm64: dts: qcom: sm8650: Add three missing fastrpc-compute-cb nodes")
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad