[Bug 81203] [BSW] GPU reset fails (ETIMEDOUT)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81203

--- Comment #4 from lu hua <huax.lu at intel.com> ---
Created attachment 104786
  --> https://bugs.freedesktop.org/attachment.cgi?id=104786&action=edit
dmesg

Run Piglit case on -nightly kernel(2b6e6b9c29dbd) and mesa master
branch(f08d7b8fe1e6689beb), GPU hang still occurs.
Run bin/glean -o -v -v -v -t +blendFunc --quick

dmesg:
[   64.739865] [drm] stuck on render ring
[   64.755811] [drm] GPU HANG: ecode 0:0x85dffffb, in X [3768], reason: Ring
hung, action: reset
[   64.755834] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[   64.755840] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[   64.755845] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[   64.755850] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[   64.755859] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[   64.755980] [drm:i915_error_work_func] resetting chip
[   64.759545] [drm:init_status_page] render ring hws offset: 0x00013000
[   64.759578] [drm:init_status_page] bsd ring hws offset: 0x00037000
[   64.759596] [drm:init_status_page] blitter ring hws offset: 0x0005a000
[   64.759614] [drm:init_status_page] video enhancement ring hws offset:
0x0007d000
[   64.759693] [drm:i9xx_update_primary_plane] Writing base 00889000 00000000 0
0 7680
[   66.739909] [drm:cherryview_enable_rps] GT fifo had a previous error 1080000
[   66.739948] [drm:cherryview_enable_rps] PCBR offset : 0x7eef8001
[   66.741896] [drm:cherryview_enable_rps] GPLL enabled? yes
[   66.741902] [drm:cherryview_enable_rps] GPU status: 0x00203010
[   66.741907] [drm:cherryview_enable_rps] current GPU freq: 480 MHz (48)
[   66.741911] [drm:cherryview_enable_rps] setting GPU freq to 320 MHz (32)
[   66.741917] [drm:valleyview_set_rps] GPU freq request from 480 MHz (48) to
320 MHz (32)
[   70.752138] [drm] stuck on render ring
[   70.768104] [drm] GPU HANG: ecode 0:0x85dffffb, in X [3768], reason: Ring
hung, action: reset
[   70.768282] [drm:i915_error_work_func] resetting chip

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