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Message-ID: <55aa19b3-58d4-02ae-efd1-c3f3d0f21ce6@intel.com>
Date: Thu, 4 May 2023 18:27:53 +0200
From: Andrzej Hajda <andrzej.hajda@...el.com>
To: Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Eric Dumazet <edumazet@...gle.com>,
"David S . Miller" <davem@...emloft.net>
Cc: netdev@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
Chris Wilson <chris@...is-wilson.co.uk>,
Jakub Kicinski <kuba@...nel.org>,
Dmitry Vyukov <dvyukov@...gle.com>
Subject: Re: [Intel-gfx] [PATCH v8 0/7] drm/i915: use ref_tracker library for
tracking wakerefs
Hi maintainers of net and i915,
On 25.04.2023 00:05, Andrzej Hajda wrote:
> 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@...ux.intel.com>
> To: Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>
> To: Rodrigo Vivi <rodrigo.vivi@...el.com>
> To: Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>
> To: David Airlie <airlied@...il.com>
> To: Daniel Vetter <daniel@...ll.ch>
> To: Eric Dumazet <edumazet@...gle.com>
> Cc: linux-kernel@...r.kernel.org
> Cc: intel-gfx@...ts.freedesktop.org
> Cc: dri-devel@...ts.freedesktop.org
> Cc: Chris Wilson <chris@...is-wilson.co.uk>
> Cc: netdev@...r.kernel.org
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: Dmitry Vyukov <dvyukov@...gle.com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Andi Shyti <andi.shyti@...ux.intel.com>
> Cc: Das, Nirmoy <nirmoy.das@...ux.intel.com>
> Signed-off-by: Andrzej Hajda <andrzej.hajda@...el.com>
>
> ---
> Changes in v8:
> - addressed comments from Eric, Zhou and CI, thanks,
> - added ref_tracker_dir_init name argument to all callers in one patch
> - moved intel_wakeref_tracker_show to *.c
> - s/intel_wakeref_tracker_show/intel_ref_tracker_show/
> - removed 'default n' from Kconfig
> - changed strlcpy to strscpy,
> - removed assignement from if condition,
> - removed long lines from patch description
> - added tags
> - Link to v7: https://lore.kernel.org/r/20230224-track_gt-v7-0-11f08358c1ec@intel.com
>
> Changes in v7:
> - removed 8th patch (hold wakeref), as it was already merged
> - added tags (thx Andi)
> - Link to v6: https://lore.kernel.org/r/20230224-track_gt-v6-0-0dc8601fd02f@intel.com
>
> Changes in v6:
> - rebased to solve minor conflict and allow CI testing
> - Link to v5: https://lore.kernel.org/r/20230224-track_gt-v5-0-77be86f2c872@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
Finally all patches are reviewed.
Question to network and i915 maintainers, how to merge this patchset:
1. Patches 1-4 belongs rather to network domain (especially patch 2).
2. Patches 5-7 are for i915.
What would be the best way to do it?
Regards
Andrzej
>
> drivers/gpu/drm/i915/Kconfig.debug | 18 ++
> 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 | 4 +-
> drivers/gpu/drm/i915/gt/intel_context_types.h | 2 +
> drivers/gpu/drm/i915/gt/intel_engine_pm.c | 7 +-
> 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 | 12 +-
> 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 | 35 +++-
> drivers/gpu/drm/i915/intel_wakeref.h | 73 ++++++-
> include/linux/ref_tracker.h | 25 ++-
> lib/ref_tracker.c | 179 ++++++++++++++---
> lib/test_ref_tracker.c | 2 +-
> net/core/dev.c | 2 +-
> net/core/net_namespace.c | 4 +-
> 32 files changed, 445 insertions(+), 332 deletions(-)
> ---
> base-commit: 4d0066a1c0763d50b6fb017e27d12b081ce21b57
> change-id: 20230224-track_gt-1b3da8bdacd7
>
> Best regards,
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