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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2020-12-20 13:48:58 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-12-20 18:15:17 +0000 |
| commit | 5ec17c763055767e4b1490da8399a6c4a53d7e8c (patch) | |
| tree | e30a9fed1a1e6974ce3b1b6d6f490b7594e76c2d /drivers/gpu/drm/i915/gt/intel_engine.h | |
| parent | drm/i915: Check for rq->hwsp validity after acquiring RCU lock (diff) | |
| download | wireguard-linux-5ec17c763055767e4b1490da8399a6c4a53d7e8c.tar.xz wireguard-linux-5ec17c763055767e4b1490da8399a6c4a53d7e8c.zip | |
drm/i915/gt: Another tweak for flushing the tasklets
tasklet_kill() ensures that we _yield_ the processor until a remote
tasklet is completed. However, this leads to a starvation condition as
being at the bottom of the scheduler's runqueue means that anything else
is able to run, including all hogs keeping the tasklet occupied.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201220134858.10510-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_engine.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h index 6606b1dbf3d6..47ee8578e511 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine.h +++ b/drivers/gpu/drm/i915/gt/intel_engine.h @@ -232,7 +232,12 @@ static inline void __intel_engine_reset(struct intel_engine_cs *engine, bool intel_engines_are_idle(struct intel_gt *gt); bool intel_engine_is_idle(struct intel_engine_cs *engine); -void intel_engine_flush_submission(struct intel_engine_cs *engine); + +void __intel_engine_flush_submission(struct intel_engine_cs *engine, bool sync); +static inline void intel_engine_flush_submission(struct intel_engine_cs *engine) +{ + __intel_engine_flush_submission(engine, true); +} void intel_engines_reset_default_submission(struct intel_gt *gt); |