diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-07-03 10:17:20 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-07-03 11:20:35 +0100 |
| commit | ad9e3792b0c0a63d4416d6d7da8320d11110b61e (patch) | |
| tree | 370591f6fb8c729a6824cf0c6c7a1f03d03c9bad | |
| parent | 8221d21b0664d79a4319bad526f4f727d3b15981 (diff) | |
drm/i915/execlists: Hesitate before slicing
Be a little more hesitant before injecting a timeslice, and try to take
into account any change in priority that is due for the running task
before switching to another task. This will allow us to arbitrarily
prevent switching away from a request if we deem it necessarily to
disable preemption, for instance.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190703091726.11690-9-chris@chris-wilson.co.uk
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_lrc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index 953b3938a85f..1e85e04c58c4 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -899,7 +899,7 @@ need_timeslice(struct intel_engine_cs *engine, const struct i915_request *rq) hint = max(rq_prio(list_next_entry(rq, sched.link)), engine->execlists.queue_priority_hint); - return hint >= rq_prio(rq); + return hint >= effective_prio(rq); } static bool |