On 15/01/15 07:38, Jaeyong Yoo wrote: > Hello Daniel and other maintainers, > > While I'm working on drm memory allocator with myself, I've encountered render ring hang. > And I am noticed that I can diagnose the command streamer's status with the following registers: > > INSTPS: 0x2070 > CSCMDOP: 0x220c > CSCMDVLD: 0x2210 > INSTDONE_1: 206C > > I can see the general description of such registers in the following PDF. > http://www.x.org/docs/intel/VOL_1_graphics_core.pdf > > But, sadly, this document does not provide a field description for implementation specific registers. > I appreciate if you point me to such information in Haswell architecture? > > Best regards, > JY > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx Hi, have you looked at intel-gpu-tools, available from http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/ ? It includes tools to decode specific registers (such as INSTDONE) and describe what the various bits mean (have a look at lib/instdone.c). There's also a tool to decode an error dump, which is a commonly used means of tracking down a GPU hang. Hope this helps, .Dave. _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
