ARM体系结构与接口10：MMU编程

阅读量：277 次

发布时间：2019-03-01

本文共 1784 字，大约阅读时间需要 5 分钟。

MMU?????

MMU??

MMU?????????ARM??????????????????????????MMU??????????????

???????MMU?????????(VMSA)??????Virtual Address, VA?????????Physical Address, PA??????????????????????

???????MMU????????????????????????????????????

VMSA??

VMSA???????????MMU??????????????????????VMSA??Translation Table?????????????Translation Lookaside Buffers?TLB????????????

Translation Table?TLB??

Translation Table??????????????????TTB???cp15?c2??????

TLB???Translation Table???????????????????TLB miss???????translation table walk????TLB?

TLB????

?????????????MVA?Modified Virtual Address??????????????????

???????????????????????

??????????????????????????????

MMU??

MMU????????

????????????????????????????????

????????????????????????

????

????MMU?????????????????????????MMU???

???????????????????????????????????????????

MMU??????

????

MMU??????????????????

VA ? TTB Lookup ? TLB Lookup ? PA

?????VA????TTB??Translation Table?????TLB?????????????????PA?

Translation Table??

????????????????????????????cache?write buffer??????????

?Translation Table???.mmudata???

?????????MMU???

??Translation Table????????????

MMU??????

????????????????

lowlevel_init.S???mmu_table???????.mmudata??

init/start.S?????MMU???enable_mmu????SD????????????

cc_bootloader??

?cc_bootloader???????????

?init/mmu.S???mmu_table?????.mmudata??

??enable_mmu?????init/start.S??

??mmu_table???????.mmudata??

?????????

x210 USB OTG?????????eMMC?SD??????SD?????????????????????

???start.S??mmu_table???.mmudata??

????????enable_mmu?????????

start.o??????????start.S????Translation Table??????????

?Translation Table????????.mmudata???

??????????.mmudata??????

????

???????????????????????MMU?Translation Table?????.mmudata???????????????

??

MMU??ARM??????????????????????????????????Translation Table?TLB???MMU?????????????????????

转载地址：http://bhwx.baihongyu.com/

你可能感兴趣的文章

opencv之namedWindow，imshow出现两个窗口

查看>>

opencv之模糊处理

查看>>

Opencv介绍及opencv3.0在 vs2010上的配置

查看>>

OpenCV使用霍夫变换检测图像中的形状

查看>>

opencv保存图片路径包含中文乱码解决方案

查看>>

OpenCV保证输入图像为三通道

查看>>

OpenCV入门教程（非常详细）从零基础入门到精通，看完这一篇就够了

opencv图像特征融合-seamlessClone

查看>>

OpenCV图像的深浅拷贝

查看>>

OpenCV在Google Colboratory中不起作用

查看>>

OpenCV学习(13) 细化算法(1)（转）

查看>>

OpenCV学习笔记（27）KAZE 算法原理与源码分析（一）非线性扩散滤波

查看>>

OpenCV学堂 | CV开发者必须懂的9种距离度量方法，内含欧氏距离、切比雪夫距离等（建议收藏）

查看>>

OpenCV学堂 | OpenCV中支持的人脸检测方法整理与汇总

查看>>

OpenCV学堂 | OpenCV案例 | 基于轮廓分析对象提取

查看>>

OpenCV学堂 | YOLOv8与YOLO11自定义数据集迁移学习效果对比

查看>>