Konstantin Belousov 30d4f9e888 Add atomic_load(9) and atomic_store(9) operations. ... They provide relaxed-ordered atomic access semantic. Due to the FreeBSD memory model, the operations are syntaxical wrappers around the volatile accesses. The volatile qualifier is used to ensure that the access not optimized out and in turn depends on the volatile semantic as implemented by supported compilers. The motivation for adding the operation is to help people coming from other systems or knowing the C11/C++ standards where atomics have special type and require use of the special access operations. It is still the case that FreeBSD requires plain load and stores of aligned integer types to be atomic. Suggested by: jhb Reviewed by: alc, jhb Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D13534		2017-12-19 09:59:20 +00:00
..
acpica	Minor cleanups found while fixing a bug involving double mapping of low	2017-12-15 03:05:14 +00:00
bios	sys/i386: further adoption of SPDX licensing ID tags.	2017-11-27 15:08:52 +00:00
cloudabi32	Use TO_PTR() to convert integers to pointers.	2017-11-26 14:45:56 +00:00
conf	i386: Bump KSTACK_PAGES default to match amd64	2017-12-11 04:32:37 +00:00
i386	Also forgotten in the previous that removed the permanent double mapping	2017-12-18 14:29:48 +00:00
ibcs2	Disable vim syntax highlighting.	2017-11-28 18:23:17 +00:00
include	Add atomic_load(9) and atomic_store(9) operations.	2017-12-19 09:59:20 +00:00
isa	sys/i386: further adoption of SPDX licensing ID tags.	2017-11-27 15:08:52 +00:00
linux	Disable vim syntax highlighting.	2017-11-28 18:23:17 +00:00
pci	sys/i386: further adoption of SPDX licensing ID tags.	2017-11-27 15:08:52 +00:00
Makefile