diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2021-01-15 14:23:27 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2021-01-15 21:30:22 +0000 |
| commit | 2c421896adb099e3a905063581f8720f6ce59638 (patch) | |
| tree | 233d5899ec24122dc9b0cdce416f69aafc55878e /drivers/gpu/drm/i915/gt/intel_execlists_submission.c | |
| parent | 0bd080497bb8712054e5e1ddd2ced13364c610b8 (diff) | |
drm/i915/gt: Drop atomic for engine->fw_active tracking
Since schedule-in/out is now entirely serialised by the tasklet bitlock,
we do not need to worry about concurrent in/out operations and so reduce
the atomic operations to plain instructions.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210115142331.24458-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_execlists_submission.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_execlists_submission.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c index 269492b80177..bb8303a9d381 100644 --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c @@ -538,7 +538,7 @@ __execlists_schedule_in(struct i915_request *rq) ce->lrc.ccid |= engine->execlists.ccid; __intel_gt_pm_get(engine->gt); - if (engine->fw_domain && !atomic_fetch_inc(&engine->fw_active)) + if (engine->fw_domain && !engine->fw_active++) intel_uncore_forcewake_get(engine->uncore, engine->fw_domain); execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_IN); intel_engine_context_in(engine); @@ -645,7 +645,7 @@ static void __execlists_schedule_out(struct i915_request * const rq, lrc_update_runtime(ce); intel_engine_context_out(engine); execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_OUT); - if (engine->fw_domain && !atomic_dec_return(&engine->fw_active)) + if (engine->fw_domain && !--engine->fw_active) intel_uncore_forcewake_put(engine->uncore, engine->fw_domain); intel_gt_pm_put_async(engine->gt); |