drm/i915/guc: Process all G2H message at once in work queue

Rather than processing 1 G2H at a time and re-queuing the work queue if
more messages exist, process all the G2H in a single pass of the work
queue.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210909164744.31249-6-matthew.brost@intel.com

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
index 22b4733b55e2b39100bf01b8bb29b35b6a960914..20c710a744987d013059f29ef00da96ce7d7560b 100644 (file)
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
@@ -1042,9 +1042,9 @@ static void ct_incoming_request_worker_func(struct work_struct *w)
                container_of(w, struct intel_guc_ct, requests.worker);
        bool done;
 
-       done = ct_process_incoming_requests(ct);
-       if (!done)
-               queue_work(system_unbound_wq, &ct->requests.worker);
+       do {
+               done = ct_process_incoming_requests(ct);
+       } while (!done);
 }
 
 static int ct_handle_event(struct intel_guc_ct *ct, struct ct_incoming_msg *request)