2009/12/7 Rafał Miłecki <zaj...@gmail.com>: > W dniu 3 grudnia 2009 11:20 użytkownik Jerome Glisse > <gli...@freedesktop.org> napisał: >> The first design i thought for PM long time ago was : >> func_compute_clock >> func_set_clock >> func_irq_powersave >> >> func_compute_clock is call any time there is a mode change to >> compute new minimum clock. >> >> func_set_clock is call after func_compute_clock (if we need to >> upclock gpu to have enough bandwidth for a new video mode) or >> from func_irq_powersave. func_set_clock would have to take all >> necessary lock to ensure exclusive hw access. >> >> func_irq_powersave is the function responsible for downclocking >> or not the GPU, it's call from irq handler, and it would call >> func_set_clock to do the work if necessary > > Do you think it's alright to do modeset on downclocked GPU? With my > patch I upclocked before every modeset operation, but not sure anymore > if that is necessary...
For engine clock it should be fine. for mem you'll need to make sure memory bandwidth is adequate. Alex ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
