[Bug 101517] New: [BAT][BYT,BSW] WARN_ON(dev_priv->uncore.funcs.mmio_readl(dev_priv, (((const i915_reg_t){ .reg = (0x180000 + 0x650C) })), true) & (1 << 27))

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Jun 20 13:30:00 UTC 2017 

https://bugs.freedesktop.org/show_bug.cgi?id=101517

            Bug ID: 101517
           Summary: [BAT][BYT,BSW]
                    WARN_ON(dev_priv->uncore.funcs.mmio_readl(dev_priv,
                    (((const i915_reg_t){ .reg = (0x180000 + 0x650C) })),
                    true) & (1 << 27))
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: martin.peres at free.fr
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Starting from CI_DRM_2743, executing the tests
igt at kms_pipe_crc_basic@suspend-read-crc-pipe-[ac] on our baytrails and
braswells may lead to the following WARNING:

[  579.071526] [drm:chv_set_cdclk [i915]] *ERROR* timed out waiting for CDclk
change
[  579.071942] WARN_ON(dev_priv->uncore.funcs.mmio_readl(dev_priv, (((const
i915_reg_t){ .reg = (0x180000 + 0x650C) })), true) & (1 << 27))
[  579.072038] ------------[ cut here ]------------
[  579.072211] WARNING: CPU: 1 PID: 3159 at
drivers/gpu/drm/i915/intel_cdclk.c:485 vlv_program_pfi_credits+0xb4/0xc0 [i915]
[  579.072224] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul
i915 ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep r8169
snd_hda_core mii lpc_ich snd_pcm i2c_hid prime_numbers i2c_designware_platform
i2c_designware_core pinctrl_cherryview
[  579.072518] CPU: 1 PID: 3159 Comm: kworker/u4:25 Tainted: G     U         
4.12.0-rc6-CI-CI_DRM_2744+ #1
[  579.072531] Hardware name:                  /NUC5CPYB, BIOS
PYBSWCEL.86A.0058.2016.1102.1842 11/02/2016
[  579.072551] Workqueue: events_unbound async_run_entry_fn
[  579.072577] task: ffff880176ad2600 task.stack: ffffc900007b8000
[  579.072745] RIP: 0010:vlv_program_pfi_credits+0xb4/0xc0 [i915]
[  579.072842] RSP: 0000:ffffc900007bba20 EFLAGS: 00010282
[  579.072869] RAX: 000000000000007c RBX: ffff88016ae60000 RCX:
0000000000000006
[  579.072882] RDX: 0000000000000006 RSI: ffffffff81cba051 RDI:
ffffffff81c99767
[  579.072895] RBP: ffffc900007bba30 R08: 0000000000000000 R09:
0000000000000001
[  579.072909] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000048004000
[  579.072922] R13: ffff88016ae60000 R14: 00000001000441da R15:
ffff88016ae66d98
[  579.072937] FS:  0000000000000000(0000) GS:ffff88017fd00000(0000)
knlGS:0000000000000000
[  579.072951] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  579.072964] CR2: 0000000000000000 CR3: 0000000003e0f000 CR4:
00000000001006e0
[  579.072977] Call Trace:
[  579.073157]  chv_set_cdclk+0x13c/0x170 [i915]
[  579.073337]  intel_set_cdclk+0x5d/0x90 [i915]
[  579.073511]  intel_atomic_commit_tail+0xa9f/0xf70 [i915]
[  579.073716]  intel_atomic_commit+0x3fb/0x500 [i915]
[  579.073832]  ? drm_atomic_check_only+0x420/0x560
[  579.073939]  ? intel_runtime_pm_put+0x51/0xa0 [i915]
[  579.073957]  drm_atomic_commit+0x46/0x50
[  579.073974]  drm_atomic_helper_commit_duplicated_state+0xbf/0xd0
[  579.074088]  __intel_display_resume+0x81/0xc0 [i915]
[  579.074205]  intel_display_resume+0xca/0xf0 [i915]
[  579.074323]  i915_pm_restore+0xef/0x190 [i915]
[  579.074424]  i915_pm_resume+0x9/0x10 [i915]
[  579.074438]  pci_pm_resume+0x5f/0x90
[  579.074455]  dpm_run_callback+0x6f/0x330
[  579.074465]  ? pci_pm_thaw+0x90/0x90
[  579.074483]  device_resume+0xac/0x1e0
[  579.074500]  ? dpm_watchdog_set+0x60/0x60
[  579.074523]  async_resume+0x18/0x40
[  579.074535]  async_run_entry_fn+0x34/0x160
[  579.074553]  process_one_work+0x1fe/0x670
[  579.074577]  worker_thread+0x49/0x3b0
[  579.074601]  kthread+0x10f/0x150
[  579.074612]  ? process_one_work+0x670/0x670
[  579.074623]  ? kthread_create_on_node+0x40/0x40
[  579.074642]  ret_from_fork+0x27/0x40
[  579.074724] Code: 52 00 00 ba 00 40 00 40 41 bc 00 40 00 98 73 97 41 bc 00
00 00 40 eb 88 48 c7 c6 b0 17 22 a0 48 c7 c7 2c 90 20 a0 e8 a5 aa 03 e1 <0f> ff
5b 41 5c 5d c3 0f 1f 44 00 00 55 31 d2 48 89 e5 53 48 83 
[  579.075235] ---[ end trace fc1be0628a46c71d ]---

Full logs:
 -
https://intel-gfx-ci.01.org/CI/CI_DRM_2744/fi-byt-n2820/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
 -
https://intel-gfx-ci.01.org/CI/CI_DRM_2744/fi-byt-j1900/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
 -
https://intel-gfx-ci.01.org/CI/CI_DRM_2744/fi-bsw-n3050/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c.html

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