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Commit 89e96d82 authored by Umesh Nerlige Ramappa's avatar Umesh Nerlige Ramappa Committed by Joonas Lahtinen
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i915/guc/reset: Make __guc_reset_context aware of guilty engines



There are 2 ways an engine can get reset in i915 and the method of reset
affects how KMD labels a context as guilty/innocent.

(1) GuC initiated engine-reset: GuC resets a hung engine and notifies
KMD. The context that hung on the engine is marked guilty and all other
contexts are innocent. The innocent contexts are resubmitted.

(2) GT based reset: When an engine heartbeat fails to tick, KMD
initiates a gt/chip reset. All active contexts are marked as guilty and
discarded.

In order to correctly mark the contexts as guilty/innocent, pass a mask
of engines that were reset to __guc_reset_context.

Fixes: eb5e7da7 ("drm/i915/guc: Reset implementation for new GuC interface")
Signed-off-by: default avatarUmesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: default avatarAlan Previn <alan.previn.teres.alexis@intel.com>
Signed-off-by: default avatarJohn Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220426003045.3929439-1-umesh.nerlige.ramappa@intel.com


(cherry picked from commit 303760aa)
Signed-off-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
parent 54395a33
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