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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2014-11-24 08:03:12 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-12-03 09:29:35 +0100 |
| commit | 2b387059817fd100cddc5a97118d63e3f3fade74 (patch) | |
| tree | a96d3700f77c2b939a13451a58ab961db11b7c8e /tools/perf/scripts/python/check-perf-trace.py | |
| parent | b4eb1564623b2ee82e3296c808c68c6fe47548cd (diff) | |
drm/i915: Only warn the first time we attempt to mmio whilst suspended
In all likelihood we will do a few hundred errnoneous register
operations if we do a single invalid register access whilst the device
is suspended. As each instance causes a WARN, this floods the system
logs and can make the system unresponsive.
The warning was first introduced in
commit b2ec142cb0101f298f8e091c7d75b1ec5b809b65
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Feb 21 13:52:25 2014 -0300
drm/i915: call assert_device_not_suspended at gen6_force_wake_work
and despite the claims the WARN is still encountered in the wild today.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions