Re: [Intel-xe] [PATCH v3 0/3] Port CPU-GPU timestamp correlation to XE KMD

[Rodrigo Vivi <rodrigo.vivi@intel.com>]

On Tue, Oct 03, 2023 at 11:09:06AM -0700, Umesh Nerlige Ramappa wrote:
> This is a port of prior work from i915 to support fine-grained CPU-GPU
> timestamp correlation. Prior work is linked in this issue:
> https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/384
> 
> Mesa and Perfetto are the consumers for this and the issue documents the
> need for higher accuracy in correlation. 
> 
> v2:
> - Change commit headers to fixup!
> - Fix kernel-doc errors
> - Include review comments
> 
> v3:
> - s/rsvd/pad/ in struct drm_xe_engine_class_instance (Jose)
> - Initialize pad

Please do not push this series and sync with Francois. This should
be part of the big series that he is pushing soon. As soon as all
the UMDs are aligned there.

> 
> Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
> 
> Umesh Nerlige Ramappa (3):
>   drm/xe: Fix array bounds check for queries
>   drm/xe: Set the correct type for xe_to_user_engine_class
>   drm/xe: Correlate engine and cpu timestamps with better accuracy
> 
>  drivers/gpu/drm/xe/xe_query.c | 147 +++++++++++++++++++++++++++++++++-
>  include/uapi/drm/xe_drm.h     | 104 ++++++++++++++++++------
>  2 files changed, 224 insertions(+), 27 deletions(-)
> 
> -- 
> 2.38.1
>