On Fri, Feb 25, 2011 at 9:38 AM, Phillip Susi <psusi@xxxxxxxxxx> wrote: > On 2/24/2011 6:03 PM, Jerome Glisse wrote: >> We don't have source of firmware, only nouveau is reverse engineering >> the nvidia one. > > Then where does the firmware come from? I've been glancing at the AMD > documentation for the R600 and I'd like to figure out why the firmware > seems to be running in an infinite loop without ever halting, and > driving the temperature of my card over 80 C, but I need the original > assembly code for that. The CP firmware has nothing to do with the temperature. The CP firmware is just a packet parser for reading in command buffers and programming the register backbone. Just alike a CPU, the GPU runs at whatever speed it's clock is set to. You can manually force lower power states using sysfs. See the power management section of this page: http://wiki.x.org/wiki/RadeonFeature Alex > >>> 2) What is a "fence"? >> >> It's what it means, it tell the cpu when the gpu reached some point in >> command stream or resource usage so we know we can free or move memory >> that was previously in use. Or simply to know when gpu is done doing >> somethings. > > So it is kind of like a barrier in the IO world? You put a dozen > commands into the pipeline and then a fence, and when they all complete, > the fence gives you feedback so you know? > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/dri-devel > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
