From f92b063e572c58a6ed818b516404165dcb7cf520 Mon Sep 17 00:00:00 2001
From: Matthew Brost <matthew.brost@intel.com>
Date: Thu, 9 Sep 2021 09:47:26 -0700
Subject: drm/i915/guc: Process all G2H message at once in work queue
Git-commit: d67e3d5a5da8ddcad7fcfac6a2a521128e4304af
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
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
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
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 22b4733b55e2..20c710a74498 100644
--- 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)
--
2.38.1