How m8l8th814n-eng/gs101-mainline works
Linux is a general-purpose operating-system kernel: hardware drivers and core subsystems provide services to user processes and to other kernel code. The usual user-to-result path is a system call or device interface into a kernel service, which may coordinate memory, scheduling, filesystems, networking, or a device driver before returning a result. The graph combines documented kernel capabilities with representative sampled drivers and internal layers. The excerpts are selective, so links for broader subsystems are shown as unverified rather than asserted as specific call paths.
Main entry points: main.c Kernel entry · dmaengine.c DMA engine · pipeline.c AtomISP pipeline · amd_manager.c AMD SoundWire
Components 18
Kernel core
- Kernel entry
init/main.c - DMA engine
drivers/dma/dmaengine.c
Kernel services
- Memory management
mm - Scheduler
- Filesystems
fs - Networking
net - Power management
drivers/base/power
Media and audio
- AtomISP pipeline
drivers/staging/media/atomisp/pci/runtime/pipeline/src/pipeline.c - AMD SoundWire
drivers/soundwire/amd_manager.c
Device drivers
- USB host
drivers/usb - USB mass storage
drivers/usb/gadget/function/f_mass_storage.c - Intel GPU engines
drivers/gpu/drm/i915/gt/intel_engine_cs.c - Xe GPU engines
drivers/gpu/drm/xe/xe_hw_engine.c
Accelerators
- AMD passthrough DMA
drivers/dma/amd/ptdma/ptdma-dmaengine.c - Intel QAT engine
drivers/crypto/intel/qat/qat_common/adf_accel_engine.c - QAT firmware
Other components
- User process
- Hardware
Connections 15
- User process → Kernel entry: enters
- Kernel entry → Memory management: uses
- Kernel entry → Scheduler: uses
- Kernel entry → Filesystems: uses
- Kernel entry → Networking: uses
- Kernel entry → Power management: uses
- Kernel entry → USB host: dispatches
- Kernel entry → USB mass storage: dispatches
- Kernel entry → DMA engine: provides
- AMD passthrough DMA → DMA engine: implements interface
- Intel QAT engine → QAT firmware: loads
drivers/crypto/intel/qat/qat_common/adf_accel_engine.c - AtomISP pipeline → Hardware: controls
- AMD SoundWire → Hardware: controls
- Intel GPU engines → Hardware: controls
- Xe GPU engines → Hardware: controls