When we debug media or 3d+media workloads, we'd like to be able to see what is
in the aub dumps for those workloads. At the moment the decoder can't
distinguish instructions which share the same opcode between the render and
video pipe, and thus aubinator outputs garbage on media instructions.
I was reluctant to make these changes into Mesa in the first place since the
work is related to media, not 3d, but as aubinator is now located here, here we
are.
As far as I can see, these are the options:
1. Put these in Mesa as aubinator now resides here instead of IGT.
a) Put all instruction definitions in the current genxml files, be it with a
tag or an attribute, both methods have their advantages and disadvantages.
b) Separate genxml files into common, render and video (and blitter?)
2. Fork aubinator tools and related genxml infra to a completely separate
project.
If I have missed an option, feel free to suggest.
On Wed, Oct 31, 2018 at 09:20:39AM -0500, Jason Ekstrand wrote:
> Toni,
>
> I'm a bit curious where you're going with this. I started on a similar
> project a couple of years ago:
>
> https://gitlab.freedesktop.org/jekstrand/mesa/commits/wip/genxml-engines
>
> Mine took a different (not necessarily better) approach of surrounding the
> instructions in an <engine> tag. I'm not sure if that's any better or
> worse than an attribute.
>
> At the time, I was planning to port over the blitter code to genxml and get
> aubinator decoding blit streams. I canned the project because there are
> few enough differences in hardware generations for the blitter to be worth
> the re-compilation and I had better things to do. I've always thought it
> would be good to support other engines for no other reason than to make
> aubinator for blits. It would also likely be useful to have if we wanted
> to start doing media in mesa for some reason. What's your motivation? I
> ask because I can't really have an opinion on the approach unless I know
> where it's headed.
>
> --Jason
>
> On Wed, Oct 31, 2018 at 8:12 AM Toni Lönnberg <toni.lonnb...@intel.com>
> wrote:
>
> > These patches add an engine parameter to the instructions defined in the
> > genxml
> > files so that they can be distinguished when sending them to different
> > engines.
> > By default, an instruction is defined to be used by all engines and is
> > defined
> > for a specific engine by adding the parameter "engine" to the definition.
> > Currently the supported engines are "render", "video" and "blitter".
> >
> > v2:
> >
> > * gen_engine enum removed and replaced with use of
> > drm_i915_gem_engine_class
> >
> > * The current engine being used is now saved in the decoder context and is
> > not
> > being passed through gen_print_batch().
> >
> > * Split the genxml changes into multiple patches
> >
> > Toni Lönnberg (13):
> > intel/decoder: tools: gen_engine to drm_i915_gem_engine_class
> > intel/decoder: Engine parameter for instructions
> > intel/decoder: tools: Use engine for decoding batch instructions
> > intel/genxml: Add engine definition to render engine instructions
> > (gen4)
> > intel/genxml: Add engine definition to render engine instructions
> > (gen45)
> > intel/genxml: Add engine definition to render engine instructions
> > (gen5)
> > intel/genxml: Add engine definition to render engine instructions
> > (gen6)
> > intel/genxml: Add engine definition to render engine instructions
> > (gen7)
> > intel/genxml: Add engine definition to render engine instructions
> > (gen75)
> > intel/genxml: Add engine definition to render engine instructions
> > (gen8)
> > intel/genxml: Add engine definition to render engine instructions
> > (gen9)
> > intel/genxml: Add engine definition to render engine instructions
> > (gen10)
> > intel/genxml: Add engine definition to render engine instructions
> > (gen11)
> >
> > src/intel/common/gen_batch_decoder.c | 25 ++-
> > src/intel/common/gen_decoder.c | 18 +-
> > src/intel/common/gen_decoder.h | 11 +-
> > src/intel/genxml/gen10.xml | 206 +++++++++++-----------
> > src/intel/genxml/gen11.xml | 208 +++++++++++------------
> > src/intel/genxml/gen4.xml | 36 ++--
> > src/intel/genxml/gen45.xml | 38 ++---
> > src/intel/genxml/gen5.xml | 44 ++---
> > src/intel/genxml/gen6.xml | 94 +++++-----
> > src/intel/genxml/gen7.xml | 154 ++++++++---------
> > src/intel/genxml/gen75.xml | 184 ++++++++++----------
> > src/intel/genxml/gen8.xml | 202 +++++++++++-----------
> > src/intel/genxml/gen9.xml | 208 +++++++++++------------
> > src/intel/tools/aub_read.c | 22 +--
> > src/intel/tools/aub_read.h | 11 +-
> > src/intel/tools/aubinator.c | 8 +-
> > src/intel/tools/aubinator_error_decode.c | 16 ++
> > 17 files changed, 763 insertions(+), 722 deletions(-)
> >
> > --
> > 2.17.1
> >
> > _______________________________________________
> > mesa-dev mailing list
> > mesa-dev@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/mesa-dev
> >
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