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Groups > linux.kernel > #1299501

[PATCH 17/34] arm64: define __smp_xxx

From "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups linux.kernel
Subject [PATCH 17/34] arm64: define __smp_xxx
Date 2015-12-30 22:50 +0100
Message-ID <qLwN4-3BQ-7@gated-at.bofh.it> (permalink)
References <qLoZb-79S-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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This defines __smp_XXX barriers for arm64,
for use by virtualization.

smp_XXX barriers are removed as they are
defined correctly by asm-generic/barriers.h

Note: arm64 does not support !SMP config,
so smp_XXX and __smp_XXX are always equivalent.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 arch/arm64/include/asm/barrier.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
index 91a43f4..dae5c49 100644
--- a/arch/arm64/include/asm/barrier.h
+++ b/arch/arm64/include/asm/barrier.h
@@ -35,11 +35,11 @@
 #define dma_rmb()	dmb(oshld)
 #define dma_wmb()	dmb(oshst)
 
-#define smp_mb()	dmb(ish)
-#define smp_rmb()	dmb(ishld)
-#define smp_wmb()	dmb(ishst)
+#define __smp_mb()	dmb(ish)
+#define __smp_rmb()	dmb(ishld)
+#define __smp_wmb()	dmb(ishst)
 
-#define smp_store_release(p, v)						\
+#define __smp_store_release(p, v)						\
 do {									\
 	compiletime_assert_atomic_type(*p);				\
 	switch (sizeof(*p)) {						\
@@ -62,7 +62,7 @@ do {									\
 	}								\
 } while (0)
 
-#define smp_load_acquire(p)						\
+#define __smp_load_acquire(p)						\
 ({									\
 	union { typeof(*p) __val; char __c[1]; } __u;			\
 	compiletime_assert_atomic_type(*p);				\
-- 
MST

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Thread

[PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 20:40 +0100
  Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for  virt David Miller <davem@davemloft.net> - 2015-12-30 21:50 +0100
    Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 22:40 +0100
      Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for  virt David Miller <davem@davemloft.net> - 2015-12-30 23:00 +0100
  [PATCH 17/34] arm64: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 22:50 +0100
  [PATCH 18/34] arm: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 22:50 +0100
  Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 22:50 +0100
    Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt Arnd Bergmann <arnd@arndb.de> - 2015-12-30 23:50 +0100
  [PATCH 20/34] ia64: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 28/34] x86: define __smp_xxX "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 26/34] tile: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 31/34] xenbus: use __smp_xxx barriers "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 23/34] s390: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 21/34] metag: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 22/34] mips: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 24/34] sh: define __smp_xxx, fix smp_store_mb for !SMP "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 27/34] xtensa: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 25/34] sparc: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 19/34] blackfin: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100
  [PATCH 32/34] xen/io: use __smp_xxx barriers "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-30 23:00 +0100

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