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    <p>Ping...</p>
    <p><br>
    </p>
    <p>Andrey<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 09/20/2018 04:35 PM, Andrey
      Grodzovsky wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:4afeb01c-37e9-ca76-8055-5dd15fca98d3@amd.com">
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      <p>What's the status with this error and the suggested patch to
        fix it ? It impacts GPU reset on Polaris11.</p>
      <p>Do we want to investigate why the original patch breaks it or
        just disable with the proposed patch ?</p>
      <p><br>
      </p>
      <p>P.S Suspend resume also stopped working on latest branch - will
        bisect it later today or tomorrow.</p>
      <p><br>
      </p>
      <p>Andrey<br>
      </p>
      <br>
      <div class="moz-cite-prefix">On 09/18/2018 11:00 AM, Christian
        König wrote:<br>
      </div>
      <blockquote type="cite"
        cite="mid:edd44be9-2ef3-3c39-3342-5d3b4bbfa40a@amd.com">
        <div class="moz-cite-prefix">Tom,<br>
          <br>
          can you try if the following makes it working again?<br>
          <br>
          diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
          b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c<br>
          index b6160de70d12..d65f5ba92fc5 100644<br>
          --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c<br>
          +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c<br>
          @@ -937,6 +937,10 @@ static int gfx_v8_0_ring_test_ib(struct
          amdgpu_ring *ring, long timeout)<br>
                  return r;<br>
           }<br>
           <br>
          +static int gfx_v8_0_kiq_ring_test_ib(struct amdgpu_ring
          *ring, long timeout)<br>
          +{<br>
          +       return 0;<br>
          +}<br>
           <br>
           static void gfx_v8_0_free_microcode(struct amdgpu_device
          *adev)<br>
           {<br>
          @@ -7174,7 +7178,7 @@ static const struct amdgpu_ring_funcs
          gfx_v8_0_ring_funcs_kiq = {<br>
                  .emit_ib = gfx_v8_0_ring_emit_ib_compute,<br>
                  .emit_fence = gfx_v8_0_ring_emit_fence_kiq,<br>
                  .test_ring = gfx_v8_0_ring_test_ring,<br>
          -       .test_ib = gfx_v8_0_ring_test_ib,<br>
          +       .test_ib = gfx_v8_0_kiq_ring_test_ib,<br>
                  .insert_nop = amdgpu_ring_insert_nop,<br>
                  .pad_ib = amdgpu_ring_generic_pad_ib,<br>
                  .emit_rreg = gfx_v8_0_ring_emit_rreg,<br>
          <br>
          <br>
          Thanks,<br>
          Christian.<br>
          <br>
          Am 18.09.2018 um 16:41 schrieb Christian König:<br>
        </div>
        <blockquote type="cite"
          cite="mid:4a250398-d2ac-1650-739d-e4a6598f1c48@gmail.com">
          <div class="moz-cite-prefix">CRTC and GFX interrupts seem to
            be working perfectly fine.<br>
            <br>
            The problem here looks like only EOP interrupts from the
            Compute queue are not correctly handled.<br>
            <br>
            Most likely a bug somewhere in gfx_v8_0_eop_irq().<br>
            <br>
            Christian.<br>
            <br>
            Am 18.09.2018 um 16:36 schrieb Deucher, Alexander:<br>
          </div>
          <blockquote type="cite"
cite="mid:BN6PR12MB1809B0E02DDA1E8AACFFD1DAF71D0@BN6PR12MB1809.namprd12.prod.outlook.com">
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              <p style="margin-top:0;margin-bottom:0">FWIW, a number of
                consumer Raven boards have bad IVRS tables (windows
                doesn't use interrupt remapping so they are sometimes
                wrong and probably not validated.  There are a number of
                workaround to manually override the IVRS tables to make
                interrupts work.  I think specifying pci=noacpi is also
                a possible workaround.</p>
              <p style="margin-top:0;margin-bottom:0"><br>
              </p>
              <p style="margin-top:0;margin-bottom:0">Alex<br>
              </p>
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            <div id="divRplyFwdMsg" dir="ltr"><font
                style="font-size:11pt" face="Calibri, sans-serif"
                color="#000000"><b>From:</b> amd-gfx <a
                  class="moz-txt-link-rfc2396E"
                  href="mailto:amd-gfx-bounces@lists.freedesktop.org"
                  moz-do-not-send="true"><amd-gfx-bounces@lists.freedesktop.org></a>
                on behalf of Christian König <a
                  class="moz-txt-link-rfc2396E"
                  href="mailto:christian.koenig@amd.com"
                  moz-do-not-send="true"><christian.koenig@amd.com></a><br>
                <b>Sent:</b> Tuesday, September 18, 2018 10:31:16 AM<br>
                <b>To:</b> StDenis, Tom; amd-gfx mailing list; Zhou,
                David(ChunMing)<br>
                <b>Subject:</b> Re: Regression on gfx8 with ring init</font>
              <div> </div>
            </div>
            <div class="BodyFragment"><font size="2"><span
                  style="font-size:11pt;">
                  <div class="PlainText">Well looks like interrupt
                    processing is working perfectly fine.<br>
                    <br>
                    But looking at the error message once more I see
                    that this actually <br>
                    affects ring number 9 and not the GFX ring.<br>
                    <br>
                    Can you fix amdgpu_ib_ring_tests() to print
                    ring->name instead of the <br>
                    number?<br>
                    <br>
                    That must be some of the compute rings.<br>
                    <br>
                    Thanks,<br>
                    Christian.<br>
                    <br>
                    Am 18.09.2018 um 16:20 schrieb Tom St Denis:<br>
                    > On 2018-09-18 10:13 a.m., Christian König
                    wrote:<br>
                    >> Mhm, there is no more failed IB-test in
                    there isn't it?<br>
                    ><br>
                    > oh sorry I thought you wanted to test HEAD~ ...
                    Attached is a log from <br>
                    > the tip of drm-next<br>
                    ><br>
                    > Tom<br>
                    ><br>
                    >><br>
                    >> Christian.<br>
                    >><br>
                    >> Am 18.09.2018 um 16:09 schrieb Tom St
                    Denis:<br>
                    >>> Disabling IOMMU in the BIOS resulted in
                    a correct boot up...<br>
                    >>><br>
                    >>> Here's the log.<br>
                    >>><br>
                    >>> Tom<br>
                    >>><br>
                    >>> On 2018-09-18 9:58 a.m., Tom St Denis
                    wrote:<br>
                    >>>> Odd I couldn't even boot my system
                    with the dGPU as primary after <br>
                    >>>> rebuilding the kernel.  It got hung
                    up in the IOMMU driver (loads <br>
                    >>>> of AMD-Vi IOMMU errors) which I
                    wasn't able to capture because it <br>
                    >>>> panic'ed before loading the network
                    stack.<br>
                    >>>><br>
                    >>>> Bizarre.<br>
                    >>>><br>
                    >>>> I'll keep trying.<br>
                    >>>><br>
                    >>>> Tom<br>
                    >>>><br>
                    >>>> On 2018-09-18 9:35 a.m., Christian
                    König wrote:<br>
                    >>>>> Am 18.09.2018 um 15:32 schrieb
                    Tom St Denis:<br>
                    >>>>>> On 2018-09-18 9:30 a.m.,
                    Christian König wrote:<br>
                    >>>>>>> Great, not sure if that
                    is a good or a bad news.<br>
                    >>>>>>><br>
                    >>>>>>> Anyway going to revert
                    the change for now. Does anybody <br>
                    >>>>>>> volunteer to figure out
                    why interrupts sometimes doesn't work <br>
                    >>>>>>> correctly on Raven?<br>
                    >>>>>><br>
                    >>>>>> What does "doesn't work
                    correctly?"  My workstation is a Raven1 <br>
                    >>>>>> (Ryzen 2400G) and other
                    than the TTM bulk move issue has been <br>
                    >>>>>> perfectly stable (through
                    suspend/resumes too I might add).<br>
                    >>>>>><br>
                    >>>>>> Anything I could test with
                    my devel raven?<br>
                    >>>>><br>
                    >>>>> The problem seems to be that on
                    some boards IH handling doesn't <br>
                    >>>>> work as it should.<br>
                    >>>>><br>
                    >>>>> Can you try to disable the
                    onboard graphics and try again?<br>
                    >>>>><br>
                    >>>>> If that still doesn't work
                    there is a DRM_DEBUG in <br>
                    >>>>> amdgpu_ih_process(), make that
                    a DRM_ERROR and send me the <br>
                    >>>>> resulting dmesg of loading
                    amdgpu (but don't start any UMD).<br>
                    >>>>><br>
                    >>>>> Thanks,<br>
                    >>>>> Christian.<br>
                    >>>>><br>
                    >>>>>><br>
                    >>>>>><br>
                    >>>>>> Tom<br>
                    >>>>>><br>
                    >>>>>>><br>
                    >>>>>>> Christian.<br>
                    >>>>>>><br>
                    >>>>>>> Am 18.09.2018 um 15:27
                    schrieb Tom St Denis:<br>
                    >>>>>>>> This commit:<br>
                    >>>>>>>><br>
                    >>>>>>>> [root@raven linux]#
                    git bisect good<br>
                    >>>>>>>>
                    9b0df0937a852d299fbe42a5939c9a8a4cc83c55 is the
                    first bad commit<br>
                    >>>>>>>> commit
                    9b0df0937a852d299fbe42a5939c9a8a4cc83c55<br>
                    >>>>>>>> Author: Christian
                    König <a class="moz-txt-link-rfc2396E"
                      href="mailto:christian.koenig@amd.com"
                      moz-do-not-send="true"><christian.koenig@amd.com></a><br>
                    >>>>>>>> Date:   Tue Sep 18
                    10:38:09 2018 +0200<br>
                    >>>>>>>><br>
                    >>>>>>>>     drm/amdgpu:
                    remove fence fallback<br>
                    >>>>>>>><br>
                    >>>>>>>>     DC doesn't seem
                    to have a fallback path either.<br>
                    >>>>>>>><br>
                    >>>>>>>>     So when
                    interrupts doesn't work any more we are pretty much
                    <br>
                    >>>>>>>> busted no<br>
                    >>>>>>>>     matter what.<br>
                    >>>>>>>><br>
                    >>>>>>>>     Signed-off-by:
                    Christian König <a class="moz-txt-link-rfc2396E"
                      href="mailto:christian.koenig@amd.com"
                      moz-do-not-send="true"><christian.koenig@amd.com></a><br>
                    >>>>>>>>     Reviewed-by:
                    Chunming Zhou <a class="moz-txt-link-rfc2396E"
                      href="mailto:david1.zhou@amd.com"
                      moz-do-not-send="true"><david1.zhou@amd.com></a><br>
                    >>>>>>>><br>
                    >>>>>>>> Results in this:<br>
                    >>>>>>>><br>
                    >>>>>>>> [   24.334025]
                    [drm] Initialized amdgpu 3.27.0 20150101 for <br>
                    >>>>>>>> 0000:07:00.0 on
                    minor 1<br>
                    >>>>>>>> [   24.335674]
                    modprobe (3895) used greatest stack depth: 12600 <br>
                    >>>>>>>> bytes left<br>
                    >>>>>>>> [   26.272358]
                    [drm:gfx_v8_0_ring_test_ib [amdgpu]] *ERROR* <br>
                    >>>>>>>> amdgpu: IB test
                    timed out.<br>
                    >>>>>>>> [   26.272460]
                    [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* <br>
                    >>>>>>>> amdgpu: failed
                    testing IB on ring 9 (-110).<br>
                    >>>>>>>> [   26.407885]
                    [drm:process_one_work] *ERROR* ib ring test <br>
                    >>>>>>>> failed (-110).<br>
                    >>>>>>>> [   28.506708] fuse
                    init (API version 7.27)<br>
                    >>>>>>>><br>
                    >>>>>>>> On init with my
                    polaris/raven1 system.<br>
                    >>>>>>>><br>
                    >>>>>>>> Cheers,<br>
                    >>>>>>>> Tom<br>
                    >>>>>>>>
                    _______________________________________________<br>
                    >>>>>>>> amd-gfx mailing
                    list<br>
                    >>>>>>>> <a
                      class="moz-txt-link-abbreviated"
                      href="mailto:amd-gfx@lists.freedesktop.org"
                      moz-do-not-send="true">amd-gfx@lists.freedesktop.org</a><br>
                    >>>>>>>> <a
                      href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx"
                      moz-do-not-send="true">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a><br>
                    >>>>>>><br>
                    >>>>>><br>
                    >>>>><br>
                    >>>><br>
                    >>><br>
                    >><br>
                    ><br>
                    <br>
                    _______________________________________________<br>
                    amd-gfx mailing list<br>
                    <a class="moz-txt-link-abbreviated"
                      href="mailto:amd-gfx@lists.freedesktop.org"
                      moz-do-not-send="true">amd-gfx@lists.freedesktop.org</a><br>
                    <a
                      href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx"
                      moz-do-not-send="true">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a><br>
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        <pre wrap="">_______________________________________________
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      <pre wrap="">_______________________________________________
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