The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.
Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix
in seqcount_mutex_t case with removal of extraneous mutex lock/unlock
calls and addition of missing critical section.
While here strip one inline wrap layer to reduce code size.
Fixes startup lockup of i915kms after update to drm-kmod v5.12
Reviewed by: hselasky, bz
MFC after: 1week
Differential Revision: https://reviews.freebsd.org/D37699
To achieve that, the header uses the C11 type generic selection keyboard
_Generic() because the macros are supposed to work with seqcount_t
and seqcount_mutex_t.
Differential Revision: https://reviews.freebsd.org/D36965
Disable preemption in seqlock write sections when using the _irqsave
variant. This ensures that a writer can't be preempted and subsequently
starved by a reader running in a callout handler on the same CPU.
This fixes occasional display hangs seen when using the i915 driver.
Tested by: emaste, wulf
Reviewed by: wulf, hselasky
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D35021
as a thin wrapper around native version found in sys/seqc.h.
This replaces out-of-base GPLv2-licensed code used by drm-kmod.
Reviewed by: hselasky
Differential revision: https://reviews.freebsd.org/D31006
