On Fre, 2011-12-16 at 16:42 +0800, chenhc@xxxxxxxxxx wrote: > > On Don, 2011-12-08 at 19:35 +0800, chenhc@xxxxxxxxxx wrote: > >> > >> I found CP_RB_WPTR has changed when "ring test failed", so I think CP is > >> active, but what it get from ring buffer is wrong. > > > > CP_RB_WPTR is normally only changed by the CPU after adding commands to > > the ring buffer, so I'm afraid that may not be a valid conclusion. > > > > > I'm sorry, I've made a spelling mistake. In fact, CP_RB_RPTR and > CP_RB_WPTR both changed, so I think CP is active. I see. However, I think this actually makes it unlikely that the problem is the CP reading wrong values from the ring, as otherwise the CP itself would likely get stuck sooner or later. > >> Then, I want to know whether there is a way to check the content that > >> GPU get from ring buffer. > > > > See the r100_debugfs_cp_csq_fifo() function, which generates the output > > for /sys/kernel/debug/dri/0/r100_cp_csq_fifo. > > > Hmmm, I don't think this function can be used by r600 (or write a similar > one for R600), because I haven't found CSQ registers in r600 code. Hmm yeah, looks like the registers for this have changed. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
