Quote Originally Posted by bridgman View Post
No. The radeon *hardware* uses proprietary *microcode*, just like most modern CPUs. That microcode happens to be driver-loaded on radeon hardware (and Intel/AMD CPUs) rather than being permanently burned into the chip on other hardware.
Which makes it easier to patch There is a kernel option to get a user space interface to change the microcode 'on the fly' for Intel CPUs... microcode in userspace or something (too lazy to google).