[Bug 107258] [BAT] igt at drv_selftest@live_guc - dmesg-warn - *ERROR* MMIO: GuC action 0x10 failed with error

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107258

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
The spam is a regression from

commit 13295bd887d07a9d904401808f41a8d35946d8c2
Author: Michal Wajdeczko <michal.wajdeczko at intel.com>
Date:   Mon May 28 17:16:18 2018 +0000

    drm/i915/guc: Don't read SOFT_SCRATCH(15) on MMIO error

    SOFT_SCRATCH(15) is used by GuC for sending MMIO GuC events to host and
    those events are now handled by intel_guc_to_host_event_handler_mmio().

    We should not try to read it on MMIO action error as 1) we may be using
    different set of registers for GuC MMIO communication, and 2) GuC may
    use CTB mechanism for sending events to host.

    While here, upgrade error message to DRM_ERROR.

    Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
    Cc: Michel Thierry <michel.thierry at intel.com>
    Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
    Cc: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20180528171618.10436-1-michal.wajdeczko@intel.com

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20180717/f0af9b39/attachment.html>