From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Inherit submitter nice at point of request submission to account for
long running processes getting either externally or self re-niced.
Nice value will only apply to requests which originate from user
contexts and have default context priority.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_request.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 960bfd517ff7..a777f14e4b87 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -1811,8 +1811,11 @@ void i915_request_add(struct i915_request *rq)
/* XXX placeholder for selftests */
rcu_read_lock();
ctx = rcu_dereference(rq->context->gem_context);
- if (ctx)
+ if (ctx) {
attr = ctx->sched;
+ if (attr.priority == I915_CONTEXT_DEFAULT_PRIORITY)
+ attr.nice = task_nice(current);
+ }
rcu_read_unlock();
__i915_request_queue(rq, &attr);
--
2.32.0
