amiga-news.de - AmigaOS 4.1: Graphics card driver RadeonHD V5.20 for Sam460

AmigaOS 4.1: Graphics card driver RadeonHD V5.20 for Sam460
The RadeonHD driver software is a graphics driver for RadeonHD graphics cards for AmigaOS 4.1 (amiga-news.de reported). Version 5 only supports "Southern Islands" cards (HD7000 series), but offers hardware-accelerated video decoding (Enhancer Software 2.2 required). The new version 5.20 has now been released for the Sam460. The changes:

Fixed a potential crash in the find card code when the card is already in use
Fixed an infinite loop in code to get PCIe speed capabilities, which would trigger if the parent PCIe device isn't the root controller
Disabled GART for the Sam460 again (was accidentally enabled)
The usleep() threshold for using the timer device was broken a while ago. FIXED
Rewrote usleep() so it no longer needs to open/close the timer device every time there's a longer delay (lowers overhead)
Now skips attempting to initialize the card altogether if the card is already in use
Fixed a potential crash if initializing the driver failed
Enabled the UVD interrupt (trap handler)
Fixed interrupt handling for the Sam460. Caching on PCIe reads from VRAM was causing the interrupt handler to read stale data, resulting in missed interrupts which, in turn, causes a complete freeze. Added fallback and workaround code