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8b549c18ae
linux/arch/openrisc/include/asm
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Peter Zijlstra 8b549c18ae openrisc: Define memory barrier mb 
This came up in the discussion of the requirements of qspinlock on an
architecture.  OpenRISC uses qspinlock, but it was noticed that the
memmory barrier was not defined.

Peter defined it in the mail thread writing:

    As near as I can tell this should do. The arch spec only lists
    this one instruction and the text makes it sound like a completion
    barrier.

This is correct so applying this patch.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
[shorne@gmail.com:Turned the mail into a patch]
Signed-off-by: Stafford Horne <shorne@gmail.com>
2021-05-15 16:00:10 +09:00
..
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 atomics/treewide: Rename __atomic_add_unless() => atomic_fetch_add_unless() 2018-06-21 14:22:32 +02:00
barrier.h openrisc: Define memory barrier mb 2021-05-15 16:00:10 +09:00
bitops.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
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/atomics/openrisc: Don't pull in all of <linux/bitops.h> in <asm/cmpxchg.h> 2018-06-21 12:52:11 +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: Add missing __iomem annotation to iounmap() 2021-01-20 06:14:26 +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 local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
linkage.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
mmu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
page.h mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS 2020-04-10 15:36:21 -07:00
pgalloc.h opeinrisc: switch to generic version of pte allocation 2020-08-07 11:33:26 -07:00
pgtable.h mm: consolidate pte_index() and pte_offset_*() definitions 2020-06-09 09:39:14 -07:00
processor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ptrace.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
serial.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
smp.h openrisc: initial SMP support 2017-11-03 14:01:13 +09:00
spinlock_types.h openrisc: use qspinlocks and qrwlocks 2017-11-03 14:01:12 +09:00
spinlock.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
spr.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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
syscalls.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
thread_info.h openrisc: add support for TIF_NOTIFY_SIGNAL 2020-11-09 08:16:55 -07:00
time.h openrisc: add tick timer multi-core sync logic 2017-11-03 14:01:16 +09:00
timex.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tlb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tlbflush.h mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
uaccess.h openrisc: Fix issue with get_user for 64-bit values 2020-09-12 17:26:00 +09:00
unaligned.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
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