linux-kernel - [PATCH v2 0/6] Add fdinfo support to Panfrost

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Date:   Thu, 24 Aug 2023 02:34:43 +0100
From:   Adrián Larumbe <adrian.larumbe@...labora.com>
To:     maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
        tzimmermann@...e.de, airlied@...il.com, daniel@...ll.ch,
        robdclark@...il.com, quic_abhinavk@...cinc.com,
        dmitry.baryshkov@...aro.org, sean@...rly.run,
        marijn.suijten@...ainline.org, robh@...nel.org,
        steven.price@....com
Cc:     adrian.larumbe@...labora.com, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, healych@...zon.com,
        kernel@...labora.com
Subject: [PATCH v2 0/6] Add fdinfo support to Panfrost

This patch series adds fdinfo support to the Panfrost DRM driver. It will
display a series of key:value pairs under /proc/pid/fdinfo/fd for render
processes that open the Panfrost DRM file.

The pairs contain basic drm gpu engine and memory region information that
can either be cat by a privileged user or accessed with IGT's gputop
utility.

Changelog:

v2:
 - Changed the way gpu cycles and engine time are calculated, using GPU
 registers and taking into account potential resets.
 - Split render engine values into fragment and vertex/tiler ones.
 - Added more fine-grained calculation of RSS size for BO's.
 - Implemente selection of drm-memory region size units
 - Removed locking of shrinker's mutex in GEM obj status function

Adrián Larumbe (6):
  drm/panfrost: Add cycle count GPU register definitions
  drm/panfrost: Add fdinfo support GPU load metrics
  drm/panfrost: Add fdinfo support for memory stats
  drm/drm_file: Add DRM obj's RSS reporting function for fdinfo
  drm/panfrost: Implement generic DRM object RSS reporting function
  drm/drm-file: Allow size unit selection in drm_show_memory_stats

 drivers/gpu/drm/drm_file.c                  | 27 +++++++----
 drivers/gpu/drm/msm/msm_drv.c               |  2 +-
 drivers/gpu/drm/panfrost/panfrost_devfreq.c |  8 +++
 drivers/gpu/drm/panfrost/panfrost_devfreq.h |  3 ++
 drivers/gpu/drm/panfrost/panfrost_device.h  | 13 +++++
 drivers/gpu/drm/panfrost/panfrost_drv.c     | 54 +++++++++++++++++++--
 drivers/gpu/drm/panfrost/panfrost_gem.c     | 34 +++++++++++++
 drivers/gpu/drm/panfrost/panfrost_gem.h     |  6 +++
 drivers/gpu/drm/panfrost/panfrost_job.c     | 30 ++++++++++++
 drivers/gpu/drm/panfrost/panfrost_job.h     |  4 ++
 drivers/gpu/drm/panfrost/panfrost_mmu.c     | 16 ++++--
 drivers/gpu/drm/panfrost/panfrost_regs.h    |  5 ++
 include/drm/drm_file.h                      |  5 +-
 include/drm/drm_gem.h                       |  9 ++++
 14 files changed, 195 insertions(+), 21 deletions(-)

-- 
2.42.0