[v7,0/4] drm/panthor: Display size of internal kernel BOs through fdinfo

Message

Adrián Larumbe Jan. 8, 2025, 9:02 p.m. UTC

This patch series enables display of the size of driver-owned shmem BO's that aren't
exposed to userspace through a DRM handle.

Discussion of previous revision can be found here [1].

Changelog:
v7:
 - Added new commit: mentions the formation rules for driver-specific fdinfo keys
 - Added new commit: adds a helper that lets driver print memory size key:value
   pairs with their driver name as a prefix.
 - Modified later commits to make use of the previous ones.
 - Deleted mentions of now unnecessary memory keys in the old revision.
v6:
 - Replace up_write with up_read, which was left out in the previous version
 - Fixed some minor comment and documentation issues reported by the kernel test robot
v5:
 - Replaced down_write semaphore with the read flavour
 - Fixed typo and added explicit description for drm-shared-internal in
 the fdinfo documentation file for Panthor.
v4:
 - Remove unrelated formating fix
 - Moved calculating overall size of a group's kernel BO's into
 its own static helper.
 - Renamed group kernel BO's size aggregation function to better
 reflect its actual responsibility.

[1] https://lore.kernel.org/dri-devel/[e-mail]/

Adrián Larumbe (4):
  Documentation/gpu: Clarify format of driver-specific fidnfo keys
  drm/file: Add driver-specific memory region key printing helper
  drm/panthor: Expose size of driver internal BO's over fdinfo
  Documentation/gpu: Add fdinfo meanings of drm-*-internal memory tags

 Documentation/gpu/drm-usage-stats.rst   |  5 ++-
 Documentation/gpu/panthor.rst           | 10 +++++
 drivers/gpu/drm/drm_file.c              | 60 +++++++++++++++++++++----
 drivers/gpu/drm/panthor/panthor_drv.c   | 13 ++++++
 drivers/gpu/drm/panthor/panthor_heap.c  | 26 +++++++++++
 drivers/gpu/drm/panthor/panthor_heap.h  |  2 +
 drivers/gpu/drm/panthor/panthor_mmu.c   | 34 ++++++++++++++
 drivers/gpu/drm/panthor/panthor_mmu.h   |  3 ++
 drivers/gpu/drm/panthor/panthor_sched.c | 51 ++++++++++++++++++++-
 drivers/gpu/drm/panthor/panthor_sched.h |  2 +
 include/drm/drm_file.h                  |  2 +
 11 files changed, 198 insertions(+), 10 deletions(-)


base-commit: c6eabbab359c156669e10d5dec3e71e80ff09bd2