Understanding Linux Interrupt Subsystem
Explore the Linux interrupt subsystem in this comprehensive conference talk by Priya Dixit from Samsung Semiconductor India Research. Dive into the intricacies of interrupt types, trigger levels, and the relationships between IRQ structures. Learn about the irq_domain structure and its role in translating hardware interrupt numbers. Examine key components such as irq_desc, irq_data, and irq_chip structures, understanding their functions in low-level hardware interactions. Discover interrupt state management, handling flows, and generic handler APIs. Gain insights into high-level driver APIs, interrupt flags, and debugging configurations. Explore user-space interrupt views through procfs and sysfs interfaces, providing a holistic understanding of the Linux interrupt architecture.