arm64: dts: qcom: sc7280: Mark FastRPC context banks as dma-coherent

The FastRPC context banks are DMA-coherent on sc7280 platform. Mark them
as such.

This allows LLM inferencing on the CDSP using Qualcomm AI Engine Direct
SDK on the qcs6490 platform.

Signed-off-by: Xilin Wu <sophon@radxa.com>
Link: https://lore.kernel.org/r/20250416-sc7280-fastrpc-dma-v1-1-60ca91116b1e@radxa.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index ac59dd41a495836f4c74db36335414e081fdbdac..b1cc3bc1aec8b769021cdc25c8d66845e7bebe70 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -3906,18 +3906,21 @@
                                                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 {
                                                compatible = "qcom,fastrpc-compute-cb";
                                                reg = <5>;
                                                iommus = <&apps_smmu 0x1805 0x0>;
+                                               dma-coherent;
                                        };
                                };
                        };
@@ -4145,6 +4148,7 @@
                                                reg = <1>;
                                                iommus = <&apps_smmu 0x11a1 0x0420>,
                                                         <&apps_smmu 0x1181 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@2 {
@@ -4152,6 +4156,7 @@
                                                reg = <2>;
                                                iommus = <&apps_smmu 0x11a2 0x0420>,
                                                         <&apps_smmu 0x1182 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@3 {
@@ -4159,6 +4164,7 @@
                                                reg = <3>;
                                                iommus = <&apps_smmu 0x11a3 0x0420>,
                                                         <&apps_smmu 0x1183 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@4 {
@@ -4166,6 +4172,7 @@
                                                reg = <4>;
                                                iommus = <&apps_smmu 0x11a4 0x0420>,
                                                         <&apps_smmu 0x1184 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@5 {
@@ -4173,6 +4180,7 @@
                                                reg = <5>;
                                                iommus = <&apps_smmu 0x11a5 0x0420>,
                                                         <&apps_smmu 0x1185 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@6 {
@@ -4180,6 +4188,7 @@
                                                reg = <6>;
                                                iommus = <&apps_smmu 0x11a6 0x0420>,
                                                         <&apps_smmu 0x1186 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@7 {
@@ -4187,6 +4196,7 @@
                                                reg = <7>;
                                                iommus = <&apps_smmu 0x11a7 0x0420>,
                                                         <&apps_smmu 0x1187 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@8 {
@@ -4194,6 +4204,7 @@
                                                reg = <8>;
                                                iommus = <&apps_smmu 0x11a8 0x0420>,
                                                         <&apps_smmu 0x1188 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        /* note: secure cb9 in downstream */
@@ -4203,6 +4214,7 @@
                                                reg = <11>;
                                                iommus = <&apps_smmu 0x11ab 0x0420>,
                                                         <&apps_smmu 0x118b 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@12 {
@@ -4210,6 +4222,7 @@
                                                reg = <12>;
                                                iommus = <&apps_smmu 0x11ac 0x0420>,
                                                         <&apps_smmu 0x118c 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@13 {
@@ -4217,6 +4230,7 @@
                                                reg = <13>;
                                                iommus = <&apps_smmu 0x11ad 0x0420>,
                                                         <&apps_smmu 0x118d 0x0420>;
+                                               dma-coherent;
                                        };
 
                                        compute-cb@14 {
@@ -4224,6 +4238,7 @@
                                                reg = <14>;
                                                iommus = <&apps_smmu 0x11ae 0x0420>,
                                                         <&apps_smmu 0x118e 0x0420>;
+                                               dma-coherent;
                                        };
                                };
                        };