Re: [PATCH v15 00/17] Add OA functionality to Xe

["Dixit, Ashutosh" <ashutosh.dixit@intel.com>]

On Wed, 05 Jun 2024 07:12:54 -0700, Souza, Jose wrote:
>

Hi Jose,

> On Sun, 2024-05-26 at 18:43 -0700, Ashutosh Dixit wrote:
> > Please see cover letter for v7 here:
> > https://patchwork.freedesktop.org/series/121084/#rev7
> >
> > For changes in later versions see changelog below.
> >
> > This series is also available at:
> >         https://gitlab.freedesktop.org/adixit/kernel/-/tree/xe-oa
> >
> > The series has been tested against this IGT series:
> >         https://gitlab.freedesktop.org/adixit/igt-gpu-tools/-/tree/xe-oa
> >	or,
> >	https://patchwork.freedesktop.org/series/130033/
> >
> > Opensource consumers using uapi in this series:
> >
> > gpuvis:
> >	https://github.com/mikesart/gpuvis/pull/86
> >
> > mesa:
> >	https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29312
> >
> > Test-with: 20240524031439.106332-1-ashutosh.dixit@intel.com
> >
>
> As first round this uAPI looks good for Mesa usage, second round after
> this ones is merged will add additional features and uAPIs need to
> support all Mesa needs.

Correct. Copy/paste from another email in this thread, this is what we are
looking at for the second round:

* hold preemption (needs some investigation as to feasibility)
* xe_sync for OA stream configuration and reconfiguration
* Equivalent of DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID. I am still trying
  to figure out if this is really needed. See here:
  https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29312#note_2429650
  Since this seems to be using some MDAPI metrics in Mesa, I think it
  should be ok to do this in the second round too.

> Acked-by: José Roberto de Souza <jose.souza@intel.com>

Thanks very much for the Mesa ack. I will start asking the Xe maintainers
if this (and gpuvis PR which is also merged) is sufficient to merge this
series now.

Thanks.
--
Ashutosh

> thank you
>
> > v2: Fix build
> > v3: Rebase, due to s/xe_engine/xe_exec_queue/
> > v4: Re-run for testing
> > v5: Address review comments, new patches 11 through 17
> > v6: New patches 18 through 21
> > v7: Patches are completely redone and don't start with i915 version of the uapi
> > v8: See https://patchwork.freedesktop.org/patch/575214/?series=128993&rev=1
> > v9: See https://patchwork.freedesktop.org/patch/577441/?series=128993&rev=2
> > v10: See https://patchwork.freedesktop.org/patch/577943/?series=128993&rev=3
> > v11: See https://patchwork.freedesktop.org/patch/581239/?series=130705&rev=1
> > v12: Add last two new patches to enable Xe2+ overrun mode
> > v13: Update last two patches after code review completion
> > v14: https://patchwork.freedesktop.org/patch/595447/?series=134028&rev=1
> > v15: https://patchwork.freedesktop.org/patch/595549/?series=134056&rev=1
> >
> > Ashutosh Dixit (17):
> >   drm/xe/perf/uapi: "Perf" layer to support multiple perf counter stream
> >     types
> >   drm/xe/perf/uapi: Add perf_stream_paranoid sysctl
> >   drm/xe/oa/uapi: Add OA data formats
> >   drm/xe/oa/uapi: Initialize OA units
> >   drm/xe/oa/uapi: Add/remove OA config perf ops
> >   drm/xe/oa/uapi: Define and parse OA stream properties
> >   drm/xe/oa: OA stream initialization (OAG)
> >   drm/xe/oa/uapi: Expose OA stream fd
> >   drm/xe/oa/uapi: Read file_operation
> >   drm/xe/oa: Add OAR support
> >   drm/xe/oa: Add OAC support
> >   drm/xe/oa/uapi: Query OA unit properties
> >   drm/xe/oa/uapi: OA buffer mmap
> >   drm/xe/oa: Add MMIO trigger support
> >   drm/xe/oa: Override GuC RC with OA on PVC
> >   drm/xe/oa: Changes to OA_TAKEN
> >   drm/xe/oa: Enable Xe2+ overrun mode
> >
> >  drivers/gpu/drm/xe/Makefile                   |    2 +
> >  .../gpu/drm/xe/instructions/xe_mi_commands.h  |    3 +
> >  drivers/gpu/drm/xe/regs/xe_engine_regs.h      |    2 +
> >  drivers/gpu/drm/xe/regs/xe_gt_regs.h          |    3 +
> >  drivers/gpu/drm/xe/regs/xe_oa_regs.h          |  103 +
> >  drivers/gpu/drm/xe/xe_device.c                |   19 +-
> >  drivers/gpu/drm/xe/xe_device_types.h          |    4 +
> >  drivers/gpu/drm/xe/xe_gt_types.h              |    4 +
> >  drivers/gpu/drm/xe/xe_guc_pc.c                |   57 +
> >  drivers/gpu/drm/xe/xe_guc_pc.h                |    3 +
> >  drivers/gpu/drm/xe/xe_hw_engine_types.h       |    2 +
> >  drivers/gpu/drm/xe/xe_lrc.c                   |   11 +-
> >  drivers/gpu/drm/xe/xe_lrc.h                   |    1 +
> >  drivers/gpu/drm/xe/xe_module.c                |    6 +
> >  drivers/gpu/drm/xe/xe_oa.c                    | 2370 +++++++++++++++++
> >  drivers/gpu/drm/xe/xe_oa.h                    |   27 +
> >  drivers/gpu/drm/xe/xe_oa_types.h              |  232 ++
> >  drivers/gpu/drm/xe/xe_perf.c                  |   67 +
> >  drivers/gpu/drm/xe/xe_perf.h                  |   20 +
> >  drivers/gpu/drm/xe/xe_query.c                 |   77 +
> >  drivers/gpu/drm/xe/xe_reg_whitelist.c         |   24 +-
> >  include/uapi/drm/xe_drm.h                     |  291 ++
> >  22 files changed, 3321 insertions(+), 7 deletions(-)
> >  create mode 100644 drivers/gpu/drm/xe/regs/xe_oa_regs.h
> >  create mode 100644 drivers/gpu/drm/xe/xe_oa.c
> >  create mode 100644 drivers/gpu/drm/xe/xe_oa.h
> >  create mode 100644 drivers/gpu/drm/xe/xe_oa_types.h
> >  create mode 100644 drivers/gpu/drm/xe/xe_perf.c
> >  create mode 100644 drivers/gpu/drm/xe/xe_perf.h
> >
>