[PATCH 0/6] drm: trace: Introduce drm_trace() and instrument drm_atomic.c

[Sean Paul]

From: Sean Paul <seanpaul at chromium.org>

Hey all,
I'm back with another trace events patchset. My first attempt [1] went
better than expected, with enthusiasm for the idea and distain for the
implementation.

As promised, I went through and added proper trace events.

Before I get _too_ far, I wanted to post this set to get feedback on the
direction I'm going. I've gone back and forth on whether to introduce a
bunch of trace systems vs using the trace class enum. I've settled on
the trace class enum since it seems more extensible and easier to use in
production that just having the blunt "enable this system", or
the tedious "enable each event I'm interested in individually" methods.

So, consider this one an RFC unless we're all in agreement, in which
case we should apply it :)

Sean

[1]- https://patchwork.freedesktop.org/patch/335350/

Sean Paul (6):
  drm: trace: Make the vblank queued/delivered events classed
  drm: trace: Introduce drm_trace() and trace event classes
  drm: trace: Add trace events for atomic state lifetime
  drm: trace: Add crtc state trace events
  drm: trace: Add connector state tracing
  drm: trace: Add plane state tracing

 Documentation/gpu/drm-internals.rst |   9 +
 drivers/gpu/drm/drm_atomic.c        |  61 ++-
 drivers/gpu/drm/drm_trace.h         | 563 ++++++++++++++++++++++++++--
 drivers/gpu/drm/drm_vblank.c        |   8 +-
 4 files changed, 609 insertions(+), 32 deletions(-)

-- 
Sean Paul, Software Engineer, Google / Chromium OS