8月22日上午A会场 面向云数据中心的RISC-V IOMMU技术探索与应用(中移苏州) 现有的RISC-V虚拟化拼图包括了内核虚拟化(RVH扩展)和内存虚拟化(MMU),本talk的目标旨在用落地IOMMU补齐虚拟化拼图。talk中详细介绍了硬件架构的实现,并展示了评估结果,与软件虚拟化相比,硬件实现提升约2.6倍。 RISC-V + AI赋能AGI时代新...
ctrl_id = <0>; /* index of /dev/rpbuf_ctrl */ iommus = <&mmu_aw 5 1>; status = "okay"; }; rpbuf_sample: rpbuf_sample@0 { compatible = "allwinner,rpbuf-sample"; rpbuf = <&rpbuf_controller0>; status = "okay"; }; msgbox: msgbox@3003000 { // msgbox配置 compatible = ...
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5.2.1 关闭RISCV 的IOMMU 本步骤只有需要在boot0 阶段启动E907 的需要配置。打开设备树,注释掉下面2 条属性,因为 e907 在boot0 阶段就启动了,不能打开其IOMMU。 cconfigs vim ../board.dts 1. 2. 图5-2: 关闭IOMMU 5.3 配置打包e907 固件 cconfigs cd ../../default/ vim boot_package_nor.cfg #...
MSM8953 – The GPU and its IOMMU is introduced, the reset for the display subsystem is also wired up. VLS CLAMP registers are specified for USB3 PHYs on MSM8998, QCM2290, and SM6115. QRB4210 RB2 – USB Type-C port management is enabled. ...
cat /sys/class/disp/disp/attr/sysscreen 0:de_rate 300000000 hz, ref_fps:60mgr0: 480x480 fmt[rgb] cs[0x204] range[full] eotf[0x4] bits[8bits] err[0] force_sync[0] unblank direct_show[false] iommu[1]dmabuf: cache[0] cache max[0] umap skip[0] overflow[0]lcd output backligh...
本步骤只有需要在boot0 阶段启动E907 的需要配置。打开设备树,注释掉下面2 条属性,因为 e907 在boot0 阶段就启动了,不能打开其IOMMU。 cconfigsvim ../board.dts 图5-2: 关闭IOMMU 5.3 配置打包e907 固件 cconfigscd ../../default/vim boot_package_nor.cfg # 取消melis-elf选项的注释,如下图vim boot...
This repository contains the SystemVerilog RTL implementation of an Input/Output Memory Management Unit (IOMMU), compliant with the [RISC-V IOMMU Specification v1.0](https://github.com/riscv-non-isa/riscv-iommu). An IOMMU performs permission checks, address translation and interrupt remapping on ...
IOMMU driver – Use standard driver registration Add support for Reboot to Rockchip RK808 Amlogic Pinctrl – New driver for the Amlogic Meson S4 SoC ARM64 DT changes for Linux 5.18: Initial support for Amlogic S4 (S802X2, S905Y4, S805X2G, S905W2) ...
5.2.1 关闭RISCV 的IOMMU 本步骤只有需要在boot0 阶段启动E907 的需要配置。打开设备树,注释掉下面2 条属性,因为 e907 在boot0 阶段就启动了,不能打开其IOMMU。 代码语言:javascript 代码运行次数:0 复制 cconfigs vim../board.dts 图5-2: 关闭IOMMU ...