xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915: Declare the driver wedged if hangcheck makes no progress

Browse Source 
Hangcheck is our back up in case the GPU or the driver gets stuck. It
detects when the GPU is not making any progress and issues a GPU reset.
However, if the driver is failing to make any progress, we can get
ourselves into a situation where we continually try resetting the GPU to
no avail. Employ a second timeout such that if we continue to see the
same seqno (the stalled engine has made no progress at all) over the
course of several hangchecks, declare the driver wedged and attempt to
start afresh.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180602104853.17140-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
This commit is contained in:
Chris Wilson
2018-06-02 11:48:53 +01:00
parent 5db1d4ea91
commit 1fd00c0fae
4 changed files with 23 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/i915/intel_ringbuffer.h
View File

@@ -122,7 +122,8 @@ struct intel_engine_hangcheck {
int deadlock;
struct intel_instdone instdone;
struct i915_request *active_request;
bool stalled;
bool stalled:1;
bool wedged:1;
};
struct intel_ring {