From e2128f43820ef741e7fd699ae0ecd92ecafed303 Mon Sep 17 00:00:00 2001 From: Dushmanta Mohaptra Date: Fri, 10 Oct 2025 11:06:50 -0700 Subject: [PATCH 1/2] reduced memory for udmabuf0/svcbuffer@1 to 4MB from 1GB --- arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi index a353beef6454..692a7715451d 100644 --- a/arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi +++ b/arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi @@ -28,7 +28,7 @@ service_reserved1: svcbuffer@1 { compatible = "shared-dma-pool"; reusable; - reg = <0x0 0x40000000 0x0 0x40000000>; + reg = <0x0 0x40000000 0x0 0x400000>; alignment = <0x1000>; }; service_reserved2: svcbuffer@2 { @@ -41,7 +41,7 @@ udmabuf@0 { compatible = "ikwzm,u-dma-buf"; device-name = "udmabuf0"; - size = <0x40000000>; // 1GiB + size = <0x400000>; // 4MB memory-region = <&service_reserved1>; }; From c27b1231bb88fede2017db64053c4dad35978a83 Mon Sep 17 00:00:00 2001 From: Dushmanta Mohaptra Date: Fri, 31 Oct 2025 13:19:08 -0700 Subject: [PATCH 2/2] change start address for svcbuffer@1/udmabuf0 --- arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi index 692a7715451d..cbec10e3ad4a 100644 --- a/arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi +++ b/arch/arm64/boot/dts/intel/socfpga_agilex_bittware.dtsi @@ -28,7 +28,7 @@ service_reserved1: svcbuffer@1 { compatible = "shared-dma-pool"; reusable; - reg = <0x0 0x40000000 0x0 0x400000>; + reg = <0x0 0x7FC00000 0x0 0x400000>; alignment = <0x1000>; }; service_reserved2: svcbuffer@2 {