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drm/i915: Reset GPU immediately if submission is disabled

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If submission is disabled by the backend for any reason, reset the GPU
immediately in the heartbeat code as the backend can't be reenabled
until the GPU is reset.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210727002348.97202-10-matthew.brost@intel.com
This commit is contained in:
Matthew Brost
2021-07-26 17:23:24 -07:00
committed by John Harrison
parent eb5e7da736
commit c41ee2873e
6 changed files with 79 additions and 13 deletions
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6
drivers/gpu/drm/i915/i915_scheduler.c
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@@ -440,6 +440,11 @@ static void default_destroy(struct kref *kref)
kfree(sched_engine);
}
static bool default_disabled(struct i915_sched_engine *sched_engine)
{
return false;
}
struct i915_sched_engine *
i915_sched_engine_create(unsigned int subclass)
{
@@ -454,6 +459,7 @@ i915_sched_engine_create(unsigned int subclass)
sched_engine->queue = RB_ROOT_CACHED;
sched_engine->queue_priority_hint = INT_MIN;
sched_engine->destroy = default_destroy;
sched_engine->disabled = default_disabled;
INIT_LIST_HEAD(&sched_engine->requests);
INIT_LIST_HEAD(&sched_engine->hold);