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 = ...
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。 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...
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。 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...
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) ...
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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
iommu properties are added to QSPI on both SC7180 and SC7280. LPASS clocks are adjusted and MDP node cleaned up slightly, on SC7180. SC8280XP – Ethernet is added and enabled on the automotive ride platform. An SDC controller is introduced and enabled on the SC8280XP CRD. ...
IOMMU https://github.com/riscv-non-isa/riscv-iommu https://github.com/riscv-non-isa/riscv-iommu-invalidation 4. SBI https://github.com/riscv-non-isa/riscv-sbi-doc 5. RPMI https://github.com/riscv-non-isa/riscv-rpmi 6. Boot and Runtime Services (BRS) https://github.com/risc...
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...