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gpu: nvgpu: Use busy looping on memory ops

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Use busy looping on L2 and TLB maintenance operations. This speeds
them up by an order of magnitude.

Add also trace points to measure performance for memory ops and
interrupt processing.

Change-Id: Ic4a8525d3d946b2b8f57b4b8ddcfc61605619399
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/681640
This commit is contained in:
Terje Bergstrom
2015-02-05 10:05:56 -08:00
committed by Dan Willemsen
parent 5b6e8995b2
commit 24ddf71b90
4 changed files with 103 additions and 7 deletions
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67
include/trace/events/gk20a.h
View File

@@ -1,7 +1,7 @@
/*
* gk20a event logging to ftrace.
*
* Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -65,6 +65,71 @@ DEFINE_EVENT(gk20a, gk20a_gpfifo_submit_wait_for_space_done,
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, gk20a_mm_l2_invalidate,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, gk20a_mm_l2_invalidate_done,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, gk20a_mm_l2_flush,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, gk20a_mm_l2_flush_done,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, gk20a_mm_tlb_invalidate,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, gk20a_mm_tlb_invalidate_done,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, gk20a_mm_fb_flush,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, gk20a_mm_fb_flush_done,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, mc_gk20a_intr_thread_stall,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, mc_gk20a_intr_thread_stall_done,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, mc_gk20a_intr_stall,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, mc_gk20a_intr_stall_done,
TP_PROTO(const char *name),
TP_ARGS(name)
);
DEFINE_EVENT(gk20a, gr_gk20a_handle_sw_method,
TP_PROTO(const char *name),
TP_ARGS(name)
);
TRACE_EVENT(gk20a_channel_update,
TP_PROTO(const void *channel),
TP_ARGS(channel),