Add dma-cherent property to fastrpc context bank nodes to ensure that
the DMA operations for these nodes are coherent.

Signed-off-by: Ling Xu <quic_lxu5@quicinc.com>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 17f244929714..333e4aa64d10 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -3881,12 +3881,14 @@ compute-cb@3 {
 						compatible = "qcom,fastrpc-compute-cb";
 						reg = <3>;
 						iommus = <&apps_smmu 0x1803 0x0>;
+						dma-coherent;
 					};
 
 					compute-cb@4 {
 						compatible = "qcom,fastrpc-compute-cb";
 						reg = <4>;
 						iommus = <&apps_smmu 0x1804 0x0>;
+						dma-coherent;
 					};
 
 					compute-cb@5 {
@@ -3894,6 +3896,7 @@ compute-cb@5 {
 						reg = <5>;
 						iommus = <&apps_smmu 0x1805 0x0>;
 						qcom,nsessions = <5>;
+						dma-coherent;
 					};
 				};
 			};
@@ -4121,6 +4124,7 @@ compute-cb@1 {
 						reg = <1>;
 						iommus = <&apps_smmu 0x11a1 0x0420>,
 							 <&apps_smmu 0x1181 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@2 {
@@ -4128,6 +4132,7 @@ compute-cb@2 {
 						reg = <2>;
 						iommus = <&apps_smmu 0x11a2 0x0420>,
 							 <&apps_smmu 0x1182 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@3 {
@@ -4135,6 +4140,7 @@ compute-cb@3 {
 						reg = <3>;
 						iommus = <&apps_smmu 0x11a3 0x0420>,
 							 <&apps_smmu 0x1183 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@4 {
@@ -4142,6 +4148,7 @@ compute-cb@4 {
 						reg = <4>;
 						iommus = <&apps_smmu 0x11a4 0x0420>,
 							 <&apps_smmu 0x1184 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@5 {
@@ -4149,6 +4156,7 @@ compute-cb@5 {
 						reg = <5>;
 						iommus = <&apps_smmu 0x11a5 0x0420>,
 							 <&apps_smmu 0x1185 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@6 {
@@ -4156,6 +4164,7 @@ compute-cb@6 {
 						reg = <6>;
 						iommus = <&apps_smmu 0x11a6 0x0420>,
 							 <&apps_smmu 0x1186 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@7 {
@@ -4163,6 +4172,7 @@ compute-cb@7 {
 						reg = <7>;
 						iommus = <&apps_smmu 0x11a7 0x0420>,
 							 <&apps_smmu 0x1187 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@8 {
@@ -4170,6 +4180,7 @@ compute-cb@8 {
 						reg = <8>;
 						iommus = <&apps_smmu 0x11a8 0x0420>,
 							 <&apps_smmu 0x1188 0x0420>;
+						dma-coherent;
 					};
 
 					/* note: secure cb9 in downstream */
@@ -4179,6 +4190,7 @@ compute-cb@11 {
 						reg = <11>;
 						iommus = <&apps_smmu 0x11ab 0x0420>,
 							 <&apps_smmu 0x118b 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@12 {
@@ -4186,6 +4198,7 @@ compute-cb@12 {
 						reg = <12>;
 						iommus = <&apps_smmu 0x11ac 0x0420>,
 							 <&apps_smmu 0x118c 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@13 {
@@ -4193,6 +4206,7 @@ compute-cb@13 {
 						reg = <13>;
 						iommus = <&apps_smmu 0x11ad 0x0420>,
 							 <&apps_smmu 0x118d 0x0420>;
+						dma-coherent;
 					};
 
 					compute-cb@14 {
@@ -4200,6 +4214,7 @@ compute-cb@14 {
 						reg = <14>;
 						iommus = <&apps_smmu 0x11ae 0x0420>,
 							 <&apps_smmu 0x118e 0x0420>;
+						dma-coherent;
 					};
 				};
 			};
-- 
2.34.1

On Tue, May 20, 2025 at 01:17:37PM +0530, Ling Xu wrote:
> Add dma-cherent property to fastrpc context bank nodes to ensure that
> the DMA operations for these nodes are coherent.
> 
> Signed-off-by: Ling Xu <quic_lxu5@quicinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sc7280.dtsi | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)

Please abstain from posting new version until concluding discussion on
the previous one (note, concluding, just responding to all the questions
is not enough). Please update internal guidelines in order to emphasize
imporance of this rule (yes, actually, please update them).

Until discussion on v2 have finished, this is NAK. 

-- 
With best wishes
Dmitry