[Intel-gfx] [PATCH v6 05/20] drm/i915/tdr: Add support for per engine reset recovery

[Michel Thierry]

On 20/04/17 17:17, Michel Thierry wrote:
>> Hmm. Interesting. This relies on i915_gem_retire_requests() (i.e.
>> struct_mutex) to skip replaying innocent requests, but here we should be
>> asserting that we do have the hung request.
>>
>> i.e.
>> request = i915_gem_find_active_request(engine);
>> if (!request)
>>     goto skip.
>>
>> Bonus points for tying that into i915_gem_reset_prepare_engine() so that
>> we only seach for the active_request once.
>>

Will this do it?
https://patchwork.freedesktop.org/patch/152494/  (ignore the DRM_ERROR I 
still have to change)

I'm not sure about reusing the active request in full-reset (what if we 
have more than one engine hung?).

Thanks