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0f6110ea97
With this patch, the driver code gets complemented with DMA support. The support for master DMA, in turn, cleared the way for using interrupts to wait for the completion of transfers, which largely relieves the CPU compared to the polling PIO mode. Consequently, the new version has a much lower CPU footprint. In the current version, both modes of operation PIO and DMA are functional. However, PIO mode is retained for benchmarking purposes only and will possibly be removed to keep the driver simple. It is disabled in the driver's 'main.cc'. |
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This is the example operating system based on the Genode OS framework: :_Init_: is the first real process in the system. The provided implementation uses a very simple XML parser to read its configuration files. :_Drivers_: The example OS has basic drivers for frame buffer, mouse and keyboard input, the PCI bus, the real-time clock, and system-specific timers. :_Server_: The only server in the example OS is Nitpicker, a minimal-complexity GUI server. :_Test_: are also part of the example OS. You may have a look at the fork bomb as a simple system stress test. :_Ldso_: is the dynamic linker used for loading executables that are linked against shared libraries. :_Lib_: contains libraries used by the components of the OS repository, in particular the device-driver kit, the alarm framework, and support for dynamic linking.