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Question I've been wondering about for a while: where does PCI fall into this? Do modern x86 PC systems still use in & out at all?
by andars 10y ago
Question I've been wondering about for a while: where does PCI fall into this? Do modern x86 PC systems still use in & out at all?
- detaro 10y agoPCI did for discovery, and could use it for device access (but often also memory-mapped). More info from the osdev wiki, which btw is a great place if you want to know about low-level initialization, the boot process etc. http://wiki.osdev.org/PCI http://wiki.osdev.org/PCI
- en4bz 10y agoI found this article to be helpful on how PCIe interacts with the CPU: http://xillybus.com/tutorials/pci-express-tlp-pcie-primer-tutorial-guide-1 http://xillybus.com/tutorials/pci-express-tlp-pcie-primer-tu...