gpu: nvgpu: wait for stalling interrupts to complete during TSG unbind preempt

Some of the engine stalling interrupts can block the context save off
the engine if not handled during fifo.preempt_tsg. They need to be
handled while polling for engine ctxsw status.

Bug 200711183
Bug 200726848

Change-Id: Ie45d76d9d1d8be3ffb842670843507f2d9aea6d0
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2521971
(cherry picked from commit I7418a9e0354013b81fbefd8c0cab5068404fc44e)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2523938
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.h b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.h
index abbf77a6..4e6bd6ba 100644
--- a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.h
+++ b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.h
@@ -1,7 +1,7 @@
 /*
  * GV11B Fifo
  *
- * Copyright (c) 2016-2018, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2016-2021, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -80,7 +80,7 @@ void gv11b_dump_eng_status(struct gk20a *g,
 u32 gv11b_fifo_intr_0_error_mask(struct gk20a *g);
 int gv11b_fifo_reschedule_runlist(struct channel_gk20a *ch, bool preempt_next);
 int gv11b_fifo_is_preempt_pending(struct gk20a *g, u32 id,
-                 unsigned int id_type);
+                 unsigned int id_type, bool preempt_retries_left);
 int gv11b_fifo_preempt_channel(struct gk20a *g, struct channel_gk20a *ch);
 int gv11b_fifo_preempt_tsg(struct gk20a *g, struct tsg_gk20a *tsg);
 int gv11b_fifo_enable_tsg(struct tsg_gk20a *tsg);