On Thu, Feb 28, 2013 at 6:59 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > On Thu, Feb 28, 2013 at 6:33 PM, Paulo Zanoni <przanoni@xxxxxxxxx> wrote: >> Hi >> >> 2013/2/28 Sedat Dilek <sedat.dilek@xxxxxxxxx>: >>> On Thu, Feb 28, 2013 at 6:12 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: >>>> On Thu, Feb 28, 2013 at 3:31 PM, Paulo Zanoni <przanoni@xxxxxxxxx> wrote: >>>>> Hi >>>>> >>>>> 2013/2/28 Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>: >>>>>> On Thu, Feb 28, 2013 at 12:06:28AM +0100, Sedat Dilek wrote: >>>>>>> On Wed, Feb 27, 2013 at 11:36 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: >>>>>>> > Hi, >>>>>>> > >>>>>>> > I am seeing this also on Linux-Next. >>>>>>> > >>>>>>> > /var/log/kern.log:Feb 27 22:52:35 fambox kernel: [ 28.202381] >>>>>>> > [drm:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout >>>>>>> > (has irq: 1)! >>>>>>> > /var/log/kern.log:Feb 27 22:52:35 fambox kernel: [ 28.210588] >>>>>>> > [drm:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout >>>>>>> > (has irq: 1)! >>>>>>> > >>>>>>> > /var/log/kern.log.1:Feb 22 07:36:04 fambox kernel: [ 27.408280] >>>>>>> > [drm:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout >>>>>>> > (has irq: 1)! >>>>>>> > >>>>>>> > This seems to be hard reproducible... >>>>>>> > Laptop-LCD... Sandybridge Mobile-GT2. >>>>>>> > >>>>>>> > Is there a way to force the error? >>>>>>> > >>>>>>> > Possible patch see [1]. >>>>>>> > >>>>>>> > - Sedat - >>>>>>> > >>>>>>> > [1] https://patchwork.kernel.org/patch/2192721/ >>>>>> >>>>>> That was: >>>>>> >>>>>> + if (!done) { >>>>>> + status = I915_READ_NOTRACE(ch_ctl); >>>>>> + DRM_ERROR("dp aux hw did not signal timeout (has irq: >>>>>> %i), status=%08x!\n", >>>>>> + has_aux_irq, status); >>>>>> + } >>>>>> >>>>>> You applied >>>>>> >>>>>> + if (!done) { >>>>>> + status = I915_READ_NOTRACE(ch_ctl); >>>>>> + DRM_ERROR("dp aux hw did not signal timeout (has irq: >>>>>> %i), status=%08x!\n", >>>>>> + has_aux_irq, status); >>>>>> + { >>>>> >>>>> In addition to this, after the problem happens can you please dump the >>>>> registers 0x44008 (DEIIR) and 0xC4008 (SDEIIR)? You can do this either >>>>> by running intel-reg-read (from intel-gpu-tools) or by changing the >>>>> DRM_ERROR above to also print the result of I915_READ(0x44008) and >>>>> I915_READ(0xC4008). >>>>> >>>> >>>> Do I need a specific version of intel-gpu-tools? >>>> Ubuntu/precise has v1.2 in its archives - sufficient? >>>> Note: The error was twice after dozenz of Linux-Next kernel builds. >>>> >>>> - Sedat - >>>> >>>> [1] http://packages.ubuntu.com/precise/intel-gpu-tools >>>> >>> >>> Installed intel-gpu-tools. >>> >>> # intel_reg_read >>> Usage: intel_reg_read [-f | addr] >>> -f : read back full range of registers. >>> WARNING! This could be danger to hang the machine! >>> addr : in 0xXXXX format >>> >>> # intel_reg_read 0x44008 >>> Couldn't map MMIO region: Resource temporarily unavailable >>> >>> [ 368.281707] intel_reg_read:3657 conflicting memory types >>> f0000000-f0400000 uncached-minus<->write-combining >>> [ 381.521912] intel_reg_read:3658 conflicting memory types >>> f0000000-f0400000 uncached-minus<->write-combining >>> [ 401.136291] intel_reg_read:3659 conflicting memory types >>> f0000000-f0400000 uncached-minus<->write-combining >>> >>> Wrong i-g-t version? Missing enabled kernel-config option? Boot with >>> i915 debug enabled? >> >> Just build the version from git and it should work >> (http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/). >> > > NO. > > $ git clone git://anongit.freedesktop.org/xorg/app/intel-gpu-tools > intel-gpu-tools-git > > $ cd intel-gpu-tools-git/ > > $ ./autogen.sh --disable-dumper <--- requires swig2.0 and python >=3.x > > $ sudo ./tools/intel_reg_read 0x44008 > 0x44008 : 0x0 > > $ sudo ./tools/intel_reg_read 0xC4008 > 0xC4008 : 0x0 > > $ sudo ./tools/intel_reg_dumper > /tmp/intel_reg_dumper.txt <--- see attachment > > Does this help you? > Ping Paulo. - Sedat - > - Sedat - > > >>> >>> - Sedat - >>> >>>>> If you conclude that the value of 0x44008 is 0x0 while the value of >>>>> 0xC4008 is not, then this patch should help: >>>>> https://patchwork.kernel.org/patch/2177841/ >>>>> >>>>>> >>>>>> That second '{' is the source of the compile error. >>>>>> -Chris >>>>>> >>>>>> -- >>>>>> Chris Wilson, Intel Open Source Technology Centre >>>>>> _______________________________________________ >>>>>> Intel-gfx mailing list >>>>>> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx >>>>>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx >>>>> >>>>> >>>>> >>>>> -- >>>>> Paulo Zanoni >> >> >> >> -- >> Paulo Zanoni _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
