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linux/arch/openrisc/include/asm
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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
..
bitops treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
asm-offsets.h OpenRISC: Headers 2011-07-22 18:46:39 +02:00
atomic.h locking/atomic: make atomic*_{cmp,}xchg optional 2023-06-05 09:57:14 +02:00
barrier.h openrisc: Define memory barrier mb 2021-05-15 16:00:10 +09:00
bitops.h include: move find.h from asm_generic to linux 2022-01-15 08:47:31 -08:00
cache.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cacheflush.h mm: rename flush_icache_user_range to flush_icache_user_page 2020-06-08 11:05:58 -07:00
cmpxchg.h locking/arch: Rename all internal __xchg() names to __arch_xchg() 2023-04-29 09:08:44 +02:00
cpuinfo.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
delay.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
elf.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fixmap.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
futex.h futex: arch_futex_atomic_op_inuser() calling conventions change 2020-03-27 23:58:51 -04:00
io.h openrisc: io: Define iounmap argument as volatile 2022-07-30 05:50:15 +09:00
irq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
irqflags.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
Kbuild openrisc: Add pci bus support 2022-07-30 05:50:15 +09:00
linkage.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mmu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mmu_context.h openrisc: use asm-generic/mmu_context.h for no-op implementations 2020-10-27 16:02:37 +01:00
page.h mm, arch: add generic implementation of pfn_valid() for FLATMEM 2023-02-09 16:51:41 -08:00
pgalloc.h mm/thp: define default pmd_pgtable() 2021-07-01 11:06:03 -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
ptrace.h openrisc: Support storing and restoring fpu state 2023-04-26 15:08:06 +01:00
serial.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
setup.h openrisc: Fix compiler warnings in setup 2021-08-11 06:14:23 +09:00
smp.h openrisc: initial SMP support 2017-11-03 14:01:13 +09:00
spr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
spr_defs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
string.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
syscall.h arch: remove unused function syscall_set_arguments() 2021-09-14 16:06:20 +02:00
syscalls.h openrisc: Add clone3 ABI wrapper 2021-12-04 11:12:09 +09:00
thread_info.h uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
time.h openrisc: add tick timer multi-core sync logic 2017-11-03 14:01:16 +09:00
timex.h openrisc: start CPU timer early in boot 2022-05-13 23:59:23 +02:00
tlb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tlbflush.h mm: update legacy flush_tlb_* to use vma 2021-06-29 10:53:52 -07:00
uaccess.h uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
unwinder.h openrisc: support framepointers and STACKTRACE_SUPPORT 2017-11-03 14:01:15 +09:00
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