[Bug 105871] New: UVD decoder fails after hibernate

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=105871

            Bug ID: 105871
           Summary: UVD decoder fails after hibernate
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.1.8
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: jjorge at free.fr
        Regression: No

[AMD/ATI] RS780 [Radeon HD 3200] works nicely, even after suspend/resume.

But after a hibernate/resume, the UVD decoder fails, while OpenGL apps run ok.
Full dmesg joined, here are the interesting lines :

[  258.694723] ACPI: Waking up from system sleep state S4
[  258.696487] PM: noirq restore of devices complete after 0.724 msecs
[  258.696783] PM: early restore of devices complete after 0.260 msecs
[  258.735733] rtc_cmos 00:01: System wakeup disabled by ACPI
[  258.744344] [drm] PCIE GART of 512M enabled (table at 0x00000000C0258000).
[  258.744394] radeon 0000:01:05.0: WB enabled
[  258.744397] radeon 0000:01:05.0: fence driver on ring 0 use gpu addr
0x00000000a0000c00 and cpu addr 0xffff88003758dc00
[  258.750826] radeon 0000:01:05.0: fence driver on ring 5 use gpu addr
0x00000000c0056038 and cpu addr 0xffffc90000816038
[  258.783182] [drm] ring test on 0 succeeded in 0 usecs
[  258.959618] [drm] ring test on 5 succeeded in 1 usecs
[  258.959622] [drm] UVD initialized successfully.
[  258.959645] [drm] ib test on ring 0 succeeded in 0 usecs
[  269.631608] radeon 0000:01:05.0: ring 5 stalled for more than 10020msec
[  269.631610] radeon 0000:01:05.0: GPU lockup (current fence id
0x0000000000000862 last fence id 0x0000000000000864 on ring 5)
[  269.631693] [drm:uvd_v1_0_ib_test [radeon]] *ERROR* radeon: fence wait
failed (-35).
[  269.631719] [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: failed
testing IB on ring 5 (-35).

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