Mark Rutland d12157efc8 locking/atomic: make atomic*_{cmp,}xchg optional ... Most architectures define the atomic/atomic64 xchg and cmpxchg operations in terms of arch_xchg and arch_cmpxchg respectfully. Add fallbacks for these cases and remove the trivial cases from arch code. On some architectures the existing definitions are kept as these are used to build other arch_atomic*() operations. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230605070124.3741859-5-mark.rutland@arm.com		2023-06-05 09:57:14 +02:00
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alpha	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
arc	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
arm	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
arm64	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
csky	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
hexagon	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
ia64	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
loongarch	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
m68k	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
microblaze	Kconfig: introduce HAS_IOPORT option and select it as necessary	2023-04-05 22:15:19 +02:00
mips	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
nios2	- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of	2023-04-27 19:42:02 -07:00
openrisc	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
parisc	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
powerpc	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
riscv	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
s390	s390/cpum_sf: Convert to cmpxchg128()	2023-06-05 09:36:40 +02:00
sh	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
sparc	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
um	This pull request contains the following changes for UML:	2023-05-03 19:02:03 -07:00
x86	arch: Remove cmpxchg_double	2023-06-05 09:36:39 +02:00
xtensa	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
.gitignore
Kconfig	lazy tlb: shoot lazies, non-refcounting lazy tlb mm reference handling scheme	2023-03-28 16:20:08 -07:00