[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

            Bug ID: 103102
           Summary: Cannot wake-up with an AMD RX 480 on Linux 4.13 and
                    Linux 4.14
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: freedesktop@psydk.org

I used to suspend/resume my system on Ubuntu 17.04 and it was fine. I installed
Ubuntu 17.10 that comes with Linux 4.13 and now my system cannot wake-up
anymore.

I submitted the bug on Ubuntu's web site. I tried Linux 4.14 but the problem
was still present. Then I've been told to open a bug here.

The original bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1720622

/var/log/kern.log shows several errors regarding amdgpu.

My RX 480 is connected to one single screen with DisplayPort. The problem
occurs with both wayland and xorg.

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #1 from Hadrien <freedesktop@psydk.org> ---
Extract of /var/log/kern.log when I did the suspend/resume:

Oct 3 21:03:28 c18 kernel: [ 62.519787] [drm:amdgpu_vce_ring_test_ring
[amdgpu]] *ERROR* amdgpu: ring 14 test failed
Oct 3 21:03:28 c18 kernel: [ 62.519795] [drm:amdgpu_resume_phase2 [amdgpu]]
*ERROR* resume of IP block <vce_v3_0> failed -110
Oct 3 21:03:28 c18 kernel: [ 62.519803] [drm:amdgpu_device_resume [amdgpu]]
*ERROR* amdgpu_resume failed (-110).
Oct 3 21:03:28 c18 kernel: [ 62.519806] dpm_run_callback():
pci_pm_resume+0x0/0xb0 returns -110
Oct 3 21:03:28 c18 kernel: [ 62.519806] PM: Device 0000:01:00.0 failed to
resume async: error -110

...

Oct 3 21:04:21 c18 kernel: [ 115.155901] [drm:atom_op_jump [amdgpu]] *ERROR*
atombios stuck in loop for more than 5secs aborting
Oct 3 21:04:21 c18 kernel: [ 115.155912] [drm:amdgpu_atom_execute_table_locked
[amdgpu]] *ERROR* atombios stuck executing BFFC (len 116, WS 0, PS 0) @ 0xC049
Oct 3 21:04:21 c18 kernel: [ 115.155955] amdgpu 0000:01:00.0: ffff9ffe950e2800
unpin not necessary

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #2 from Hadrien <freedesktop@psydk.org> ---
I tried several kernels:

4.12.4: OK
4.12.5: OK
4.12.6: FAIL, but after 20 seconds the monitor displays something: pure garbage
4.12.7: FAIL, the monitor stays OFF

I'll attach the kernel logs.

Interesting part in 4.12.6:

Oct  5 20:56:21 c18 kernel: [   37.277968] [drm:amdgpu_vce_ring_test_ring
[amdgpu]] *ERROR* amdgpu: ring 13 test failed
Oct  5 20:56:21 c18 kernel: [   37.277976] [drm:amdgpu_resume [amdgpu]] *ERROR*
resume of IP block <vce_v3_0> failed -110
Oct  5 20:56:21 c18 kernel: [   37.277983] [drm:amdgpu_device_resume [amdgpu]]
*ERROR* amdgpu_resume failed (-110).
Oct  5 20:56:21 c18 kernel: [   37.277985] dpm_run_callback():
pci_pm_resume+0x0/0xa0 returns -110
Oct  5 20:56:21 c18 kernel: [   37.277986] PM: Device 0000:01:00.0 failed to
resume async: error -110

There is a slight difference with more recent kernels, where the message
mentions ring 14 instead of ring 13 and some other functions too.

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #3 from Hadrien <freedesktop@psydk.org> ---
Created attachment 134688
  --> https://bugs.freedesktop.org/attachment.cgi?id=134688&action=edit
kern.log of boot/suspend/resume with Linux kernel 4.12.5

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #4 from Hadrien <freedesktop@psydk.org> ---
Created attachment 134689
  --> https://bugs.freedesktop.org/attachment.cgi?id=134689&action=edit
kern.log of boot/suspend/resume with Linux kernel 4.12.6

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #5 from Hadrien <freedesktop@psydk.org> ---
The problem looks a bit like this one:
https://bugzilla.kernel.org/show_bug.cgi?id=196615

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #6 from Hadrien <freedesktop@psydk.org> ---
I tried Phoronix kernel image from Alex Deucher's drm-next-4.15-dc Git branch.
I still get the same problem with and without amdgpu.dc=1.

Oct  9 21:29:12 c18 kernel: [   32.199451] [drm:amdgpu_vce_ring_test_ring
[amdgpu]] *ERROR* amdgpu: ring 14 test failed
Oct  9 21:29:12 c18 kernel: [   32.199461] [drm:amdgpu_resume_phase2 [amdgpu]]
*ERROR* resume of IP block <vce_v3_0> failed -110
Oct  9 21:29:12 c18 kernel: [   32.199471] [drm:amdgpu_device_resume [amdgpu]]
*ERROR* amdgpu_resume failed (-110).
Oct  9 21:29:12 c18 kernel: [   32.199474] dpm_run_callback():
pci_pm_resume+0x0/0xa0 returns -110
Oct  9 21:29:12 c18 kernel: [   32.199474] PM: Device 0000:01:00.0 failed to
resume async: error -110
Oct  9 21:29:12 c18 kernel: [   32.199498] PM: resume of devices complete after
539.171 msecs

I've been looking at the changelog of kernel 4.12.6 but there isn't much
changes in amdgpu. Maybe there are changes in another impacting amdgpu? I have
these errors before amdgpu errors:

Oct  9 21:29:12 c18 kernel: [   32.035186] ACPI Error: [DSSP] Namespace lookup
failure, AE_NOT_FOUND (20170531/psargs-364)
Oct  9 21:29:12 c18 kernel: [   32.035188] ACPI Error: Method parse/execution
failed \_SB.PCI0.SAT0.PRT0._GTF, AE_NOT_FOUND (20170531/psparse-550)
Oct  9 21:29:12 c18 kernel: [   32.035206] ata6: SATA link down (SStatus 4
SControl 300)
Oct  9 21:29:12 c18 kernel: [   32.035225] ata2: SATA link down (SStatus 4
SControl 300)
Oct  9 21:29:12 c18 kernel: [   32.035231] ata1.00: supports DRM functions and
may not be fully accessible
Oct  9 21:29:12 c18 kernel: [   32.035901] ata1.00: disabling queued TRIM
support
Oct  9 21:29:12 c18 kernel: [   32.037457] ACPI Error: [DSSP] Namespace lookup
failure, AE_NOT_FOUND (20170531/psargs-364)
Oct  9 21:29:12 c18 kernel: [   32.037459] ACPI Error: Method parse/execution
failed \_SB.PCI0.SAT0.PRT0._GTF, AE_NOT_FOUND (20170531/psparse-550)
Oct  9 21:29:12 c18 kernel: [   32.037531] ata1.00: supports DRM functions and
may not be fully accessible
Oct  9 21:29:12 c18 kernel: [   32.038084] ata1.00: disabling queued TRIM
support
Oct  9 21:29:12 c18 kernel: [   32.038704] ACPI Error: [DSSP] Namespace lookup
failure, AE_NOT_FOUND (20170531/psargs-364)
Oct  9 21:29:12 c18 kernel: [   32.038706] ACPI Error: Method parse/execution
failed \_SB.PCI0.SAT0.PRT4._GTF, AE_NOT_FOUND (20170531/psparse-550)
Oct  9 21:29:12 c18 kernel: [   32.039418] ata1.00: configured for UDMA/133
Oct  9 21:29:12 c18 kernel: [   32.055252] ata4: SATA link down (SStatus 4
SControl 300)
Oct  9 21:29:12 c18 kernel: [   32.082715] ACPI Error: [DSSP] Namespace lookup
failure, AE_NOT_FOUND (20170531/psargs-364)
Oct  9 21:29:12 c18 kernel: [   32.082718] ACPI Error: Method parse/execution
failed \_SB.PCI0.SAT0.PRT4._GTF, AE_NOT_FOUND (20170531/psparse-550)
Oct  9 21:29:12 c18 kernel: [   32.114002] ata5.00: configured for UDMA/133

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #7 from Michel Dänzer <michel@daenzer.net> ---
Is there any chance you can bisect between 4.12.5 and 4.12.6?

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #8 from Alex Deucher <alexdeucher@gmail.com> ---
Does the patch on this bug help?
https://bugzilla.kernel.org/show_bug.cgi?id=196615

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #9 from Hadrien <freedesktop@psydk.org> ---
(In reply to Michel Dänzer from comment #7)
> Is there any chance you can bisect between 4.12.5 and 4.12.6?

I think this is the next step to diagnose that problem. I've never built and
installed my own kernel before so I will have to learn how to do it.

(In reply to Alex Deucher from comment #8)
> Does the patch on this bug help?
> https://bugzilla.kernel.org/show_bug.cgi?id=196615

It was my first clue as the kernel log looks a bit the same but the problematic
commit identified in that bug ticket is present in 4.12.4 and 4.12.5, versions
that work on my computer. When I learn how to build my own kernel I will try to
remove the commit just to be sure.

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #10 from Hadrien <freedesktop@psydk.org> ---
I built v4.12.5 from
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git instead
of using a prebuilt kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.12.5/ and I unexpectedly faced
the problem.

I wonder why I cannot reproduce the problem with Ubuntu's version of kernel
4.12.5. Maybe there are some Ubuntu specific patches that hide the problem?

Anyway, I rebuilt v4.2.5 again but this time I removed the code from the commit
referenced on kernel.org Bugzilla:

------------------------------------------------------------------------------------------------------
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index c0a806280257..f862e3d9cd93 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -838,9 +838,10 @@ static int amdgpu_cgs_get_active_displays_info(struct
cgs_device *cgs_device,
                return -EINVAL;

        mode_info = info->mode_info;
+
        if (mode_info) {
                /* if the displays are off, vblank time is max */
-               mode_info->vblank_time_us = 0xffffffff;
+               /*mode_info->vblank_time_us = 0xffffffff;*/
                /* always set the reference clock */
                mode_info->ref_clock = adev->clock.spll.reference_freq;
        }

------------------------------------------------------------------------------------------------------

And I cannot reproduce the problem anymore. So I guess this is actually the
same problem than https://bugzilla.kernel.org/show_bug.cgi?id=196615

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #11 from Hadrien <freedesktop@psydk.org> ---
I've been setting vblank_time_us to 0x7fffffff, 0x0000ffff, 0x000000ff and I
get the same problem.

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #12 from Hadrien <freedesktop@psydk.org> ---
Alex, I applied the changes you attached at kernel.org regarding
/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c to my 4.12.5 kernel (and I
kept the line that sets vblank_time_us to 0xffffffff).

It fixes the issue. I suspended and resumed my system twice without problem.
Good catch!

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

--- Comment #13 from Hadrien Nilsson <freedesktop@psydk.org> ---
Today I got a new kernel for Ubuntu 17.10: 4.13.0-19-generic #22-Ubuntu

Everything works fine. I didn't test it on 4.14 but it seems the fix was
reported there too, so if everybody is ok I will close this bug.

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[Bug 103102] Cannot wake-up with an AMD RX 480 on Linux 4.13 and Linux 4.14

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https://bugs.freedesktop.org/show_bug.cgi?id=103102

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #14 from Alex Deucher <alexdeucher@gmail.com> ---
Fixed in 8b95f4f730cba02ef6febbdc4ca7e55ca045b00e

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