The document provides an introduction to Linux kernel modules. It discusses that kernel modules extend the capabilities of the Linux kernel by executing code as part of the kernel. It then describes the anatomy of a kernel module, including initialization and cleanup functions. The document demonstrates a simple "hello world" kernel module example and how to build, load and unload kernel modules. It also introduces the idea of character device drivers as a more advanced kernel module example.
This document provides information about Xilinx Zynq UltraScale+ MPSoCs, including:
- An overview of the different device types - CG (commercial grade), EG (extended temperature), and EV (automotive) with their key components.
- Block diagrams and descriptions of the processing system and programmable logic for each device type.
- Tables comparing the specifications of devices within each type such as logic resources, memory, connectivity, and integrated IP.
- Potential applications for each device type including image processing, video, networking, and more.
際際滷s of a course that is given to teach embedded linux to engineers. The full course is 2-days; this is the first time a 'light' version was given lasting a single day.
Focus is on
. What is Linux
. How do I compile
. How do I flash
The document discusses OpenVINOTM, an Intel toolkit that provides high performance computer vision and deep learning inference capabilities. It allows building applications that leverage OpenCV, deep learning models, and heterogeneous execution across CPU, GPU, FPGA and VPU hardware. Key benefits include portable deployment across platforms with a minimal footprint, optimized performance on Intel hardware, and pre-trained models for common tasks like object detection. The toolkit includes libraries, tools for model optimization, and samples to help developers build and deploy high performance computer vision and deep learning applications.
The document discusses how to add Linux support for a new board. It covers customizing hardware design from a reference design, adding board support code for the bootloader and Linux kernel, and building a custom user-space distribution. The key steps involve customizing the hardware design, porting the bootloader (AT91Bootstrap and U-Boot), adding board support to the Linux kernel, and using a build system like OpenEmbedded to create a custom user-space distribution.
Understanding a kernel oops and a kernel panicJoseph Lu
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This document discusses Linux kernel oops and kernel panics. It explains that a kernel oops occurs when there is an illegal instruction or illegal memory access in kernel space, and will kill the offending process to keep the system running. A kernel panic means the system must stop immediately. Kernel oops can be caused by illegal instructions, unrecognized system calls, undefined CPU instructions, unknown data aborts, or prefetch aborts. These result in a call to the arm_notify_die() function and generate an oops. Illegal instructions that handle interrupt vectors can cause a panic directly. A kernel panic performs further actions like console output and stopping other CPUs before restarting or halting the system. Methods to capture crash
Chapitre 2- Pr└sentation Structure de base d_un ordinateurYounesAziz3
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Chapitre 2- Pr└sentation Structure de base d_un ordinateur
The document discusses how a "Hello World" program works behind the scenes. It covers topics like compilation, linking, executable file formats, loading programs into memory, and process creation. The key points are:
1) A C program is compiled into an object file, then linked with library files to create an executable. The linker resolves symbols and relocates addresses.
2) Executable files use formats like ELF that contain machine code, data, symbol tables, and sections. Object files have a similar format.
3) When a program runs, the OS loads pages of the executable into memory as needed and sets up the process with its own virtual address space.
4) System calls
The document discusses the architecture of the Linux kernel. It describes the user space and kernel space components. In user space are the user applications, glibc library, and each process's virtual address space. In kernel space are the system call interface, architecture-independent kernel code, and architecture-dependent code. It then covers several kernel subsystems like process management, memory management, virtual file system, network stack, and device drivers.
The document provides an introduction to Linux and device drivers. It discusses Linux directory structure, kernel components, kernel modules, character drivers, and registering drivers. Key topics include dynamically loading modules, major and minor numbers, private data, and communicating with hardware via I/O ports and memory mapping.
This document provides an introduction to Linux drivers. It discusses the ecosystem of Linux drivers, types of Linux drivers, driver layering, related commands and configurations. It also guides the reader in creating their first Linux driver, covering basics like the module constructor, destructor, printk function and building the driver module.
Hardware accelerated Virtualization in the ARM Cortex? ProcessorsThe Linux Foundation
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The document discusses hardware accelerated virtualization capabilities in ARM Cortex processors including the Cortex-A15. It describes new features like large physical addressing, virtualization extensions, and a virtual interrupt controller that allow multiple operating system instances and work environments to run simultaneously in isolation on ARM devices.
The document discusses Compute Unified Device Architecture (CUDA), which is a parallel computing platform and programming model created by Nvidia that allows software developers to use GPUs for general-purpose processing. It provides an overview of CUDA, including its execution model, implementation details, applications, and advantages/drawbacks. The document also covers CUDA programming, compiling CUDA code, CUDA architectures, and concludes that CUDA has brought significant innovations to high performance computing.
The document discusses block drivers in Linux. It covers the need for the block layer, decoding block devices, writing a block driver, driver registration, block device operations, and request queues. Key aspects covered include registering a block device driver, implementing required functions like open and close, managing request queues and processing I/O requests to read from and write to the device. An example RAM disk driver is presented to demonstrate writing a basic block driver.
This course gets you started with writing device drivers in Linux by providing real time hardware exposure. Equip you with real-time tools, debugging techniques and industry usage in a hands-on manner. Dedicated hardware by Emertxe's device driver learning kit. Special focus on character and USB device drivers.
Linux is a widely used open source operating system kernel that can also refer to full operating system distributions. It is commonly used in embedded systems due to its portability, modularity, and ability to run on hardware with limited resources. Device drivers can be dynamically loaded and unloaded from the Linux kernel as modules, allowing new functionality to be added without rebooting the system. This makes Linux well-suited for embedded device development.
The second part of Linux Internals covers system calls, process subsystem and inter process communication mechanisms. Understanding these services provided by Linux are essential for embedded systems engineer.
Process Address Space: The way to create virtual address (page table) of user...Adrian Huang
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Process Address Space: The way to create virtual address (page table) of userspace application.
Note: When you view the the slide deck via web browser, the screenshots may be blurred. You can download and view them offline (Screenshots are clear).
This document provides an overview of multimedia capabilities and libraries for embedded Linux systems, including DirectFB and SDL. It describes key multimedia concepts and gives brief descriptions of the main features and capabilities of DirectFB and SDL, including video playback, audio, input handling, and acceleration. It also discusses using these libraries for multimedia development on embedded Linux targets.
The document discusses the architecture of the Linux kernel. It describes the user space and kernel space components. In user space are the user applications, glibc library, and each process's virtual address space. In kernel space are the system call interface, architecture-independent kernel code, and architecture-dependent code. It then covers several kernel subsystems like process management, memory management, virtual file system, network stack, and device drivers.
The document provides an introduction to Linux and device drivers. It discusses Linux directory structure, kernel components, kernel modules, character drivers, and registering drivers. Key topics include dynamically loading modules, major and minor numbers, private data, and communicating with hardware via I/O ports and memory mapping.
This document provides an introduction to Linux drivers. It discusses the ecosystem of Linux drivers, types of Linux drivers, driver layering, related commands and configurations. It also guides the reader in creating their first Linux driver, covering basics like the module constructor, destructor, printk function and building the driver module.
Hardware accelerated Virtualization in the ARM Cortex? ProcessorsThe Linux Foundation
?
The document discusses hardware accelerated virtualization capabilities in ARM Cortex processors including the Cortex-A15. It describes new features like large physical addressing, virtualization extensions, and a virtual interrupt controller that allow multiple operating system instances and work environments to run simultaneously in isolation on ARM devices.
The document discusses Compute Unified Device Architecture (CUDA), which is a parallel computing platform and programming model created by Nvidia that allows software developers to use GPUs for general-purpose processing. It provides an overview of CUDA, including its execution model, implementation details, applications, and advantages/drawbacks. The document also covers CUDA programming, compiling CUDA code, CUDA architectures, and concludes that CUDA has brought significant innovations to high performance computing.
The document discusses block drivers in Linux. It covers the need for the block layer, decoding block devices, writing a block driver, driver registration, block device operations, and request queues. Key aspects covered include registering a block device driver, implementing required functions like open and close, managing request queues and processing I/O requests to read from and write to the device. An example RAM disk driver is presented to demonstrate writing a basic block driver.
This course gets you started with writing device drivers in Linux by providing real time hardware exposure. Equip you with real-time tools, debugging techniques and industry usage in a hands-on manner. Dedicated hardware by Emertxe's device driver learning kit. Special focus on character and USB device drivers.
Linux is a widely used open source operating system kernel that can also refer to full operating system distributions. It is commonly used in embedded systems due to its portability, modularity, and ability to run on hardware with limited resources. Device drivers can be dynamically loaded and unloaded from the Linux kernel as modules, allowing new functionality to be added without rebooting the system. This makes Linux well-suited for embedded device development.
The second part of Linux Internals covers system calls, process subsystem and inter process communication mechanisms. Understanding these services provided by Linux are essential for embedded systems engineer.
Process Address Space: The way to create virtual address (page table) of user...Adrian Huang
?
Process Address Space: The way to create virtual address (page table) of userspace application.
Note: When you view the the slide deck via web browser, the screenshots may be blurred. You can download and view them offline (Screenshots are clear).
This document provides an overview of multimedia capabilities and libraries for embedded Linux systems, including DirectFB and SDL. It describes key multimedia concepts and gives brief descriptions of the main features and capabilities of DirectFB and SDL, including video playback, audio, input handling, and acceleration. It also discusses using these libraries for multimedia development on embedded Linux targets.