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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asm-offsets.h	Hexagon: Add processor and system headers	2011-11-01 07:34:18 -07:00
atomic.h	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
bitops.h	provide arch_test_bit_acquire for architectures that define test_bit	2022-08-27 09:49:54 -07:00
cache.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
cacheflush.h	hexagon: use asm-generic/cacheflush.h	2020-06-08 11:05:57 -07:00
checksum.h	unify generic instances of csum_partial_copy_nocheck()	2020-08-20 15:45:14 -04:00
cmpxchg.h	locking/arch: Rename all internal __xchg() names to __arch_xchg()	2023-04-29 09:08:44 +02:00
delay.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
dma.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
elf.h	whack-a-mole: USE_ELF_CORE_DUMP	2020-10-25 20:03:05 -04:00
exec.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
fixmap.h	mm: pgtable: add shortcuts for accessing kernel PMD and PTE	2020-06-09 09:39:13 -07:00
fpu.h	Hexagon: Core arch-specific header files	2011-11-01 07:34:18 -07:00
futex.h	Hexagon: change jumps to must-extend in futex_atomic_*	2021-05-03 11:04:19 -05:00
hexagon_vm.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
intrinsics.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
io.h	regmap/hexagon: Properly fix the generic IO helpers	2022-08-22 14:07:24 +01:00
irq.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
irqflags.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
Kbuild	local64.h: make <asm/local64.h> mandatory	2020-12-29 15:36:49 -08:00
kgdb.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
linkage.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
mem-layout.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
mmu_context.h	hexagon: use asm-generic/mmu_context.h for no-op implementations	2020-10-27 16:02:35 +01:00
mmu.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
page.h	mm, arch: add generic implementation of pfn_valid() for FLATMEM	2023-02-09 16:51:41 -08:00
perf_event.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
pgalloc.h	asm-generic: pgalloc: provide generic pgd_free()	2020-08-07 11:33:26 -07:00
pgtable.h	mm: remove __HAVE_ARCH_PTE_SWP_EXCLUSIVE	2023-02-02 22:33:11 -08:00
processor.h	kernel: exit: cleanup release_thread()	2022-09-11 21:55:07 -07:00
smp.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
spinlock_types.h	locking: Allow to include asm/spinlock_types.h from linux/spinlock_types_raw.h	2021-12-07 15:14:12 +01:00
spinlock.h	hexagon: parenthesize registers in asm predicates	2020-01-04 13:55:09 -08:00
string.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
suspend.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
switch_to.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
syscall.h	hexagon: define syscall_get_error() and syscall_get_return_value()	2019-07-16 19:23:24 -07:00
thread_info.h	uaccess: remove CONFIG_SET_FS	2022-02-25 09:36:06 +01:00
time.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
timex.h	hexagon: clean up timer-regs.h	2021-11-20 10:35:54 -08:00
tlb.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
tlbflush.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
traps.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
uaccess.h	uaccess: generalize access_ok()	2022-02-25 09:36:05 +01:00
vdso.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
vermagic.h	arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h>	2020-04-23 10:50:26 +09:00
vm_fault.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
vm_mmu.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267	2019-06-05 17:30:29 +02:00
vmalloc.h	mm/vmalloc: Add empty <asm/vmalloc.h> headers and use them from <linux/vmalloc.h>	2019-12-10 10:12:55 +01:00