[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

            Bug ID: 86267
           Summary: [drm:evergreen_resume] *ERROR* evergreen startup
                    failed on resume
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: jasa.bartelj@gmail.com

Created attachment 109443
  --> https://bugs.freedesktop.org/attachment.cgi?id=109443&action=edit
corrupt display

After resuming from suspend on kernel 3.18-rc4 the graphics card locks

:

[55325.256071] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[55325.261268] [drm] PCIE GART of 1024M enabled (table at 0x000000000025E000).
[55325.261400] radeon 0000:03:00.0: WB enabled
[55325.261402] radeon 0000:03:00.0: fence driver on ring 0 use gpu addr
0x0000000040000c00 and cpu addr 0xffff8800d7caac00
[55325.261404] radeon 0000:03:00.0: fence driver on ring 3 use gpu addr
0x0000000040000c0c and cpu addr 0xffff8800d7caac0c
[55325.262271] radeon 0000:03:00.0: fence driver on ring 5 use gpu addr
0x000000000005c418 and cpu addr 0xffffc9000581c418
[55325.437301] [drm:r600_ring_test] *ERROR* radeon: ring 0 test failed
(scratch(0x8504)=0xCAFEDEAD)
[55325.437302] [drm:evergreen_resume] *ERROR* evergreen startup failed on
resume

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #109443|text/plain                  |image/jpeg
          mime type|                            |

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #1 from Michel Dänzer <michel@daenzer.net> ---
Is this a regression, i.e. did it work with older kernels? If so, can you
bisect?

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

jbart <jasa.bartelj@gmail.com> changed:

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

--- Comment #2 from jbart <jasa.bartelj@gmail.com> ---
Hi. I'm unable to reproduce this issue again on a more recent kernel build
(3.18.0-0.rc4.git0.2). I'll just mark it worksforme.

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

jbart <jasa.bartelj@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|WORKSFORME                  |---

--- Comment #3 from jbart <jasa.bartelj@gmail.com> ---
I rescind my previous comment, the same issue has happened again. The bug is
spurious, I can't reliably reproduce it yet.

As for bisection I can definitely give it a shot, but it's pointless until I
can reproduce the issue at will...

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #4 from Michel Dänzer <michel@daenzer.net> ---
(In reply to jbart from comment #3)
> As for bisection I can definitely give it a shot, but it's pointless until I
> can reproduce the issue at will...

Not really, if you can get a feeling for how many times you need to test before
you can be confident that the problem is not present.

Anyway, were you using older kernels before where the problem never occurred?
What was the newest kernel where that was the case?

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #5 from jbart <jasa.bartelj@gmail.com> ---
I've seen a similar issue at least in the last, i.e. 3.17-rc cycle. Because it
seemed to stop occuring in later rcs and stable releases I didn't investigate
further. Because I don't recall such issues before, yes, I would say that this
behaviour is a regression.

I've also experienced this issue with the latest rc on rawhide,
3.18.0-0.rc5.git0.2.fc22.x86_64.

After the GPU fails to resume I need to kill X. A new session says it is being
rendered by llvmpipe, a state which can only be gotten out of by a full reboot.

Since the issue is sporadic (it happens about 2 or 3 times a week) I haven't
started bisecting since "getting a good feeling" would really take too long. I
haven't noticed that any open apps trigger the bug.

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

Ismael <isma.casti@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|Other                       |x86-64 (AMD64)
                 OS|All                         |Linux (All)
           Severity|normal                      |major

--- Comment #6 from Ismael <isma.casti@gmail.com> ---
I get the error every time I suspend the machine. And 3D acceleration is
disabled until I reboot.
I am using a HD5770 running 3.17.4-1-ck. Both Mesa and X are in the last stable
version (I use Arch).

Nov 30 14:49:32 boreal kernel: [drm] PCIE GART of 1024M enabled (table at
0x000000000025D000).
Nov 30 14:49:32 boreal kernel: radeon 0000:01:00.0: WB enabled
Nov 30 14:49:32 boreal kernel: radeon 0000:01:00.0: fence driver on ring 0 use
gpu addr 0x0000000040000c00 and cpu addr 
Nov 30 14:49:32 boreal kernel: radeon 0000:01:00.0: fence driver on ring 3 use
gpu addr 0x0000000040000c0c and cpu addr 
Nov 30 14:49:32 boreal kernel: radeon 0000:01:00.0: fence driver on ring 5 use
gpu addr 0x000000000005c418 and cpu addr 
Nov 30 14:49:32 boreal kernel: [drm:r600_ring_test] *ERROR* radeon: ring 0 test
failed (scratch(0x8504)=0xCAFEDEAD)
Nov 30 14:49:32 boreal kernel: [drm:evergreen_resume] *ERROR* evergreen startup
failed on resume

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #7 from stefanscheffler@gmx.net ---
Same here with a Radeon HD 5670 512MB GDDR5 using Arch Linux. It also happens
without starting X.

This error only shows up when the card successfully resumes not when it fails:

  [drm:rv770_stop_dpm] *ERROR* Could not force DPM to low.

Disabling DPM seems to prevent the startup failures.

Another observation. According to /proc/interrupts the card generates thousands
of interrupts per seconds after a failed resume, which might explain why the
system feels extremely sluggish afterwards.


Bisecting brought me to this commit. It's from early in the 3.17 cycle. I 
thought this was happening with 3.16 already, but maybe I remember wrong.

commit a3eb06dbca08e3fdad7039021ae03b46b215f22a
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Wed Jul 9 20:15:42 2014 +0200

    drm/radeon: Remove radeon_gart_restore()

    Doesn't seem necessary, the GART table memory should be persistent.

    Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
    Reviewed-by: Christian König <christian.koenig@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

stefanscheffler@gmx.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |stefanscheffler@gmx.net

--- Comment #8 from stefanscheffler@gmx.net ---
Created attachment 110335
  --> https://bugs.freedesktop.org/attachment.cgi?id=110335&action=edit
dmesg after failed resume

Dmesg after a few suspend/resumes. Card failed to start up after the last one.

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #9 from Michel Dänzer <michel@daenzer.net> ---
Created attachment 110348
  --> https://bugs.freedesktop.org/attachment.cgi?id=110348&action=edit
Add mb() call to radeon_gart_table_vram_pin

Does this patch help?

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #10 from stefanscheffler@gmx.net ---
No, doesn't make a difference. Tested with 3.17.4.

The "interrupt storm" I mentioned didn't happen this time. I checked with a
patched and unpatched kernel. Either it was just one time thing or only
happened with older kernels.

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #110348|0                           |1
        is obsolete|                            |

--- Comment #11 from Michel Dänzer <michel@daenzer.net> ---
Created attachment 110555
  --> https://bugs.freedesktop.org/attachment.cgi?id=110555&action=edit
Add mb() andradeon_gart_tlb_flush() calls to radeon_gart_table_vram_pin

How about this patch?

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #12 from stefanscheffler@gmx.net ---
Doesn't help. Tested with 3.17.4 and 3.18.0.

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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[-- Attachment #1.1: Type: text/plain, Size: 763 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=86267

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #110555|0                           |1
        is obsolete|                            |

--- Comment #13 from Michel Dänzer <michel@daenzer.net> ---
Created attachment 111362
  --> https://bugs.freedesktop.org/attachment.cgi?id=111362&action=edit
Keep GART table mapped across suspend/resume

Does this patch help?

Note that it's just an incomplete proof of concept, but it should at least help
narrow down the problem.

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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[-- Attachment #1.1: Type: text/plain, Size: 433 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #14 from stefanscheffler@gmx.net ---
Created attachment 111395
  --> https://bugs.freedesktop.org/attachment.cgi?id=111395&action=edit
dmesg with radeon-suspend-gart-table.diff

On 3.18.1 the patch applied with some offsets and didn't help. I'm getting
those NULL pointer warnings now though.

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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[-- Attachment #1.1: Type: text/plain, Size: 353 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #15 from Michel Dänzer <michel@daenzer.net> ---
Created attachment 112527
  --> https://bugs.freedesktop.org/attachment.cgi?id=112527&action=edit
Split off separate radeon_gart_get_page_entry ASIC hook

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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[-- Attachment #1.1: Type: text/plain, Size: 679 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=86267

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #111362|0                           |1
        is obsolete|                            |

--- Comment #16 from Michel Dänzer <michel@daenzer.net> ---
Created attachment 112528
  --> https://bugs.freedesktop.org/attachment.cgi?id=112528&action=edit
Reinstate radeon_gart_restore for when the GART table is in VRAM

Do these two patches help?

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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[-- Attachment #1.1: Type: text/plain, Size: 1675 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=86267

--- Comment #17 from Ismael <isma.casti@gmail.com> ---
(In reply to Michel Dänzer from comment #16)
> Created attachment 112528 [details] [review]
> Reinstate radeon_gart_restore for when the GART table is in VRAM
> 
> Do these two patches help?

Yes it helps. Suspend and resume work perfectly now.

Xan 22 21:20:20 boreal kernel: [drm] enabling PCIE gen 2 link speeds, disable
with radeon.pcie_gen2=0
Xan 22 21:20:20 boreal kernel: [drm] PCIE GART of 1024M enabled (table at
0x000000000025E000).
Xan 22 21:20:20 boreal kernel: radeon 0000:01:00.0: WB enabled
Xan 22 21:20:20 boreal kernel: radeon 0000:01:00.0: fence driver on ring 0 use
gpu addr 0x0000000040000c00 and cpu addr 0xffff88041693cc00
Xan 22 21:20:20 boreal kernel: radeon 0000:01:00.0: fence driver on ring 3 use
gpu addr 0x0000000040000c0c and cpu addr 0xffff88041693cc0c
Xan 22 21:20:20 boreal kernel: radeon 0000:01:00.0: fence driver on ring 5 use
gpu addr 0x000000000005c418 and cpu addr 0xffffc9000471c418
Xan 22 21:20:20 boreal kernel: [drm] ring test on 0 succeeded in 1 usecs
Xan 22 21:20:20 boreal kernel: [drm] ring test on 3 succeeded in 2 usecs
Xan 22 21:20:20 boreal kernel: usb 6-1.6.2: reset high-speed USB device number
5 using ehci-pci
Xan 22 21:20:20 boreal kernel: [drm] ring test on 5 succeeded in 1 usecs
Xan 22 21:20:20 boreal kernel: [drm] UVD initialized successfully.
Xan 22 21:20:20 boreal kernel: [drm] ib test on ring 0 succeeded in 0 usecs
Xan 22 21:20:20 boreal kernel: [drm] ib test on ring 3 succeeded in 0 usecs

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[Bug 86267] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume

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https://bugs.freedesktop.org/show_bug.cgi?id=86267

Michel Dänzer <michel@daenzer.net> changed:

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

--- Comment #18 from Michel Dänzer <michel@daenzer.net> ---
The fix is queued up in Alex Deucher's -fixes tree.

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