Commit graph

23 commits

Author SHA1 Message Date
Bjoern A. Zeeb
de5496958c LinuxKPI: lockdep fix #includes
Add sys/sytm.h for __diagused which unbreaks compilation of
drm-kmod 5.10-lts on main.

Sponsored by:	The FreeBSD Foundation
Reported by:	Evgenii Khramtsov
PR:		282479
Fixes:		5c92f84bb607
Approved by:	re (cperciva)

(cherry picked from commit 9b2705121ba230bf71a1509cc928f0481dfbf31c)
(cherry picked from commit 06733ceca6)
2024-11-19 00:36:04 +00:00
Bjoern A. Zeeb
8341284368 LinuxKPI: update rcu_dereference_*() and lockdep_is_held()
Update rcu_dereference_{check,protected}() to call the check and log
once if it fails and if the RCU debug sysctl is turned on.
Also add proper checks for conditions passed in to these functions.
For that implement linux_rcu_read_lock_held() (lots of help from wulf).

(While here also remove extraneous extern for function prototypes).

Update lockdep_is_held() to always be an inline function with argument
annotation so that we do no longer have unused variables
in callers which only call lockdep_is_held().

Sponsored by:	The FreeBSD Foundation
Reviewed by:	wulf
Differential Revision:  https://reviews.freebsd.org/D46842

(cherry picked from commit 5c92f84bb607c692ce4fa762a7a3c4b86a2fa281)
2024-10-31 14:33:57 +00:00
Alvin Chen
0ce38f6c0c LinuxKPI: lockdep_assert: wrong 'cond' used in WARN_ON MACRO
'cond' in WARN_ON need be bracketed,
otherwise it is wrong for multiple conditions.

Reviewed by:	wulf
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D44604

(cherry picked from commit 21f4cf5ccf87fd15d4d71f89d4c3ecab13f26146)
2024-08-02 00:09:39 +03:00
Warner Losh
95ee2897e9 sys: Remove $FreeBSD$: two-line .h pattern
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
2023-08-16 11:54:11 -06:00
Jean-Sébastien Pédron
b82bcfb66f
linuxkpi: Define lockdep_assert{,_once}()
Reviewed by:	manu
Approved by:	manu
Differential Revision:	https://reviews.freebsd.org/D38538
2023-02-13 22:09:32 +01:00
Jean-Sébastien Pédron
17f2b12a38
linuxkpi: Define lockdep_assert_none_held_once()
This is defined as a no-op even when INVARIANTS is defined. I admit I
don't know how to implement that in FreeBSD and didn't search
thoroughly.

Reviewed by:	bz
Approved by:	bz
Differential Revision:	https://reviews.freebsd.org/D37911
2023-01-02 22:07:31 +01:00
Bjoern A. Zeeb
b27c3aa800 LinuxKPI: lockdep.h add lockdep_{,un}register_key()
Add NOPs for lockdep_{,un}register_key().

Sponsored by:	The FreeBSD Foundation
MFC after:	7 days
Reviewed by:	hselasky, emaste
Differential Revision: https://reviews.freebsd.org/D36658
2022-09-22 15:10:03 +00:00
Bjoern A. Zeeb
064c110f4b LinuxKPI: lockdep add lockdep_assert_not_held()
Add lockdep_assert_not_held() asserting LA_UNLOCKED as needed by a
driver.

MFC after:	3 days
Reviewed by:	hselasky
Differential Revision: https://reviews.freebsd.org/D34232
2022-02-15 23:15:00 +00:00
Vladimir Kondratyev
307f78f3ed LinuxKPI: Constantly use _LINUXKPI_ prefix in include guards
MFC after:	1 week
Reviewed by:	bz, emaste, hselasky, manu
Differential Revision:	https://reviews.freebsd.org/D33562
2022-01-10 22:49:38 +03:00
Vladimir Kondratyev
f1a7639a16 LinuxKPI: Add some typical header pollution
To reduce amount of drm-kmod patching

MFC after:	1 week
Reviewed by:	hselasky, manu
Differential Revision:	https://reviews.freebsd.org/D33297
2022-01-10 22:49:37 +03:00
Vladimir Kondratyev
68fcdba38b LinuxKPI: Make lockdep*_pin_lock macros useable for drm-kmod
Summary:
- Add dummy struct pin_cookie definition;
- Convert lockdep_pin_lock macro to function;
- Fix 'unused variable' compile-time errors;

MFC after:	1 week
Reviewers:	hselasky, manu
Differential Revision:	https://reviews.freebsd.org/D33295
2022-01-10 22:49:37 +03:00
Neel Chauhan
8a1a42b2a7 linuxkpi: Add macros for might_lock_nested() and lockdep_(re/un/)pin_lock()
In Linux, these are macros to locks in the kernel for scheduling purposes.
But as with other macros in this header, we aren't doing anything with them
so we are doing `do {} while (0)` for now.

This is needed by the drm-kmod 5.7 update.

Approved by:		hselasky (src)
MFC after:		3 days
Differential Revision:	https://reviews.freebsd.org/D30710
2021-06-09 14:41:44 -07:00
Bjoern A. Zeeb
f1069375d9 LinuxKPI: add lockdep_map
Add stubs for struct lockdep_map and three accessor functions
used by iwlwifi.

Obtained-from:	bz_iwlwifi
Sponsored-by:	The FreeBSD Foundation
MFC-after:	2 weeks
Reviewed-by:	hselasky, emaste
Differential Revision:	https://reviews.freebsd.org/D29398
2021-03-24 22:50:55 +00:00
Bjoern A. Zeeb
4abbf816bf LinuxKPI: upstream a collection of drm-kmod conflicting changes
The upcoming in-kernel implementations for LinuxKPI based on work on
iwlwifi (and other wireless drivers) conflicts in a few places with
the drm-kmod graphics work outside the base system.

In order to transition smoothly extract the conflicting bits.
This included "unaligned" accessor functions, sg_pcopy_from_buffer(),
IS_*() macros (to be further restricted in the future), power management
bits (possibly no longer conflicting with DRM), and other minor changes.

Obtained-from:  bz_iwlwifi
Sponsored-by:   The FreeBSD Foundation
MFC after:	3 days
Reviewed by:	kib, hselasky, manu, bdragon (looked at earlier versions)
Differential Revision: https://reviews.freebsd.org/D26598
2021-01-28 16:15:12 +00:00
Emmanuel Vadot
85d787b2fe Fix r363565
lockdep.h needs sys/lock.h for LOCK_CLASS
2020-07-26 18:33:29 +00:00
Hans Petter Selasky
922106bf00 Implement more lockdep macros in the LinuxKPI.
Submitted by:	ashafer_badland.io (Austin Shafer)
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2020-05-01 10:18:07 +00:00
John Baldwin
e28024fbad Fix build with DRM and INVARIANTS enabled.
The DRM drivers use the lockdep assertion macros with spinlock_t locks
which are backed by mutexes, not sx locks.  This causes compile
failures since you can't use sx_assert with a mutex.  Instead, change
the lockdep macros to use lock_class methods.  This works by assuming
that each LinuxKPI locking primitive embeds a FreeBSD lock as its
first structure and uses a cast to get to the underlying 'struct
lock_object'.

Reviewed by:	hselasky
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D20992
2019-08-13 21:15:59 +00:00
Hans Petter Selasky
86ba49a722 Implement more lockdep stubs in the LinuxKPI.
MFC after:	1 week
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
2018-03-02 08:59:53 +00:00
Hans Petter Selasky
1169b94c7b Stub more lockdep function macros in the LinuxKPI.
MFC after:	1 week
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
Sponsored by:	Mellanox Technologies
2018-02-17 22:41:20 +00:00
Mark Johnston
7e1a02baa5 Add some miscellaneous definitions to support the DRM drivers.
MFC after:	1 week
2017-08-22 17:13:28 +00:00
Mark Johnston
934277c59c Add a couple of macros to lockdep.h in the LinuxKPI.
MFC after:	1 week
2017-06-25 19:23:14 +00:00
Mark Johnston
33baed9452 Add a lockdep macro to the LinuxKPI.
Also fix some nearby style issues.

MFC after:	1 week
2017-06-21 18:08:36 +00:00
Hans Petter Selasky
8d59ecb214 Finish process of moving the LinuxKPI module into the default kernel build.
- Move all files related to the LinuxKPI into sys/compat/linuxkpi and
  its subfolders.
- Update sys/conf/files and some Makefiles to use new file locations.
- Added description of COMPAT_LINUXKPI to sys/conf/NOTES which in turn
  adds the LinuxKPI to all LINT builds.
- The LinuxKPI can be added to the kernel by setting the
  COMPAT_LINUXKPI option. The OFED kernel option no longer builds the
  LinuxKPI into the kernel. This was done to keep the build rules for
  the LinuxKPI in sys/conf/files simple.
- Extend the LinuxKPI module to include support for USB by moving the
  Linux USB compat from usb.ko to linuxkpi.ko.
- Bump the FreeBSD_version.
- A universe kernel build has been done.

Reviewed by:	np @ (cxgb and cxgbe related changes only)
Sponsored by:	Mellanox Technologies
2015-10-29 08:28:39 +00:00
Renamed from sys/ofed/include/linux/lockdep.h (Browse further)