Gently ping for network developers, could you look at ref_tracker patches,
as the ref_tracker library was developed for network.
This is revived patchset improving ref_tracker library and converting
i915 internal tracker to ref_tracker.
The old thread ended without consensus about small kernel allocations,
which are performed under spinlock.
I have tried to solve the problem by splitting the calls, but it results
in complicated API, so I went back to original solution.
If there are better solutions I am glad to discuss them.
Meanwhile I send original patchset with addressed remaining comments.
To: Jani Nikula <jani.nikula@linux.intel.com>
To: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
To: Rodrigo Vivi <rodrigo.vivi@intel.com>
To: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
To: David Airlie <airlied@gmail.com>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-kernel@vger.kernel.org
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: netdev@vger.kernel.org
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
---
Changes in v5 (thx Andi for review):
- use *_locked convention instead of __*,
- improved commit messages,
- re-worked i915 patches, squashed separation and conversion patches,
- added tags,
- Link to v4: https://lore.kernel.org/r/20230224-track_gt-v4-0-464e8ab4c9ab@intel.com
Changes in v4:
- split "Separate wakeref tracking" to smaller parts
- fixed typos,
- Link to v1-v3: https://patchwork.freedesktop.org/series/100327/
---
Andrzej Hajda (7):
lib/ref_tracker: add unlocked leak print helper
lib/ref_tracker: improve printing stats
lib/ref_tracker: add printing to memory buffer
lib/ref_tracker: remove warnings in case of allocation failure
drm/i915: Correct type of wakeref variable
drm/i915: Replace custom intel runtime_pm tracker with ref_tracker library
drm/i915: track gt pm wakerefs
Chris Wilson (1):
drm/i915/gt: Hold a wakeref for the active VM
drivers/gpu/drm/i915/Kconfig.debug | 19 ++
drivers/gpu/drm/i915/display/intel_display_power.c | 2 +-
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 7 +-
.../drm/i915/gem/selftests/i915_gem_coherency.c | 10 +-
drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c | 14 +-
drivers/gpu/drm/i915/gt/intel_breadcrumbs.c | 13 +-
drivers/gpu/drm/i915/gt/intel_breadcrumbs_types.h | 3 +-
drivers/gpu/drm/i915/gt/intel_context.h | 15 +-
drivers/gpu/drm/i915/gt/intel_context_types.h | 2 +
drivers/gpu/drm/i915/gt/intel_engine_pm.c | 10 +-
drivers/gpu/drm/i915/gt/intel_engine_types.h | 2 +
.../gpu/drm/i915/gt/intel_execlists_submission.c | 2 +-
drivers/gpu/drm/i915/gt/intel_gt_pm.c | 12 +-
drivers/gpu/drm/i915/gt/intel_gt_pm.h | 38 +++-
drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c | 4 +-
drivers/gpu/drm/i915/gt/selftest_engine_cs.c | 20 +-
drivers/gpu/drm/i915/gt/selftest_gt_pm.c | 5 +-
drivers/gpu/drm/i915/gt/selftest_reset.c | 10 +-
drivers/gpu/drm/i915/gt/selftest_rps.c | 17 +-
drivers/gpu/drm/i915/gt/selftest_slpc.c | 5 +-
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 11 +-
drivers/gpu/drm/i915/i915_driver.c | 2 +-
drivers/gpu/drm/i915/i915_pmu.c | 16 +-
drivers/gpu/drm/i915/intel_runtime_pm.c | 221 ++-------------------
drivers/gpu/drm/i915/intel_runtime_pm.h | 11 +-
drivers/gpu/drm/i915/intel_wakeref.c | 7 +-
drivers/gpu/drm/i915/intel_wakeref.h | 99 ++++++++-
include/linux/ref_tracker.h | 31 ++-
lib/ref_tracker.c | 179 ++++++++++++++---
29 files changed, 456 insertions(+), 331 deletions(-)
---
base-commit: c6137ecf40b2dc5bdf1ed8928122b700bfc91fea
change-id: 20230224-track_gt-1b3da8bdacd7
Best regards,
--
Andrzej Hajda <andrzej.hajda@intel.com>