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ARM: 8777/1: Hook up SYNC_CORE functionality for sys_membarrier()

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Exception return implies context synchronization, so we can hook up the
SYNC_CORE option to sys_membarrier() simply by selecting the Kconfig option,
just like we've done for arm64 already.

Cc: Orion Hodson <[email protected]>
Acked-by: Mathieu Desnoyers <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Russell King <[email protected]>
This commit is contained in:
Will Deacon 2018-06-26 15:52:38 +01:00 • committed by Russell King
commit e69244d295
2 changed files with 5 additions and 4 deletions
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8
Documentation/features/sched/membarrier-sync-core/arch-support.txt
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@ -5,10 +5,10 @@
#
# Architecture requirements
#
# * arm64
# * arm/arm64
#
# Rely on eret context synchronization when returning from IPI handler, and
# when returning to user-space.
# Rely on implicit context synchronization as a result of exception return
# when returning from IPI handler, and when returning to user-space.
#
# * x86
#
@ -31,7 +31,7 @@
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |