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/openbmc/linux/arch/arm64/mm/ |
H A D | context.c | 3a33c760 Thu Nov 30 12:25:17 CST 2017 Will Deacon <will.deacon@arm.com> arm64: context: Fix comments and remove pointless smp_wmb()
The comments in the ASID allocator incorrectly hint at an MP-style idiom using the asid_generation and the active_asids array. In fact, the synchronisation is achieved using a combination of an xchg operation and a spinlock, so update the comments and remove the pointless smp_wmb().
Cc: James Morse <james.morse@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> 3a33c760 Thu Nov 30 12:25:17 CST 2017 Will Deacon <will.deacon@arm.com> arm64: context: Fix comments and remove pointless smp_wmb() The comments in the ASID allocator incorrectly hint at an MP-style idiom using the asid_generation and the active_asids array. In fact, the synchronisation is achieved using a combination of an xchg operation and a spinlock, so update the comments and remove the pointless smp_wmb(). Cc: James Morse <james.morse@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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