Extreme Graphics is a set of three boards that Indigo2 technical report called the most powerful graphics hardware currently offered by Silicon Graphics for a desktop workstation. Extreme Graphics includes eight Geometry Engine processors, two raster engines, high resolution 24-bit color, and a 24-bit Z-buffer.
This page describes random bits and pieces obtained during framebuffer driver development for Extreme.
Address range Description Size 1F000000-1F03FFFF Shared data RAM 256K 1F040000-1F05FFFF FIFO 128K 1F060000-1F067FFF HQ2 microcode 32K 1F068000-1F069FFF GE7(0-7) 8K 1F06A000-1F06BFFF HQ internal regs 8K 1F06C000-1F06C01F Board version 32 bytes
More details can be found in include/video/extreme.h.
Drawing a Character
Linux kernel support
Still under development.