mirror of
https://github.com/torvalds/linux.git
synced 2024-11-05 11:32:04 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
14 lines
678 B
Plaintext
14 lines
678 B
Plaintext
|
|
The SGI Visual Workstations (models 320 and 540) are based around
|
|
the Cobalt, Lithium, and Arsenic ASICs. The Cobalt ASIC is the
|
|
main system ASIC which interfaces the 1-4 IA32 cpus, the memory
|
|
system, and the I/O system in the Lithium ASIC. The Cobalt ASIC
|
|
also contains the 3D gfx rendering engine which renders to main
|
|
system memory -- part of which is used as the frame buffer which
|
|
is DMA'ed to a video connector using the Arsenic ASIC. A PIIX4
|
|
chip and NS87307 are used to provide legacy device support (IDE,
|
|
serial, floppy, and parallel).
|
|
|
|
The Visual Workstation chipset largely conforms to the PC architecture
|
|
with some notable exceptions such as interrupt handling.
|