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| author |   Michael S. Tsirkin <mst@redhat.com> | 2015-12-21 09:22:18 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-01-12 20:46:50 +0200 |
| commit | abe114d9f0a80f27bc5040cd2287dca80423d13e (patch) | |
| tree | bdafde450ec21e4c37e618ac7324f35a773212f1 /arch/metag/include | |
| parent | arm64: reuse asm-generic/barrier.h (diff) | |
| download | linux-dev-abe114d9f0a80f27bc5040cd2287dca80423d13e.tar.xz linux-dev-abe114d9f0a80f27bc5040cd2287dca80423d13e.zip | |
metag: reuse asm-generic/barrier.h
On metag dma_rmb, dma_wmb, smp_store_mb, read_barrier_depends,
smp_read_barrier_depends, smp_store_release and smp_load_acquire match
the asm-generic variants exactly. Drop the local definitions and pull in
asm-generic/barrier.h instead.
This is in preparation to refactoring this code area.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Diffstat (limited to 'arch/metag/include')
| -rw-r--r-- | arch/metag/include/asm/barrier.h | 25 |
1 files changed, 2 insertions, 23 deletions
diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h index 172b7e5efc53..b5b778bb0b33 100644 --- a/arch/metag/include/asm/barrier.h +++ b/arch/metag/include/asm/barrier.h @@ -44,9 +44,6 @@ static inline void wr_fence(void) #define rmb() barrier() #define wmb() mb() -#define dma_rmb() rmb() -#define dma_wmb() wmb() - #ifndef CONFIG_SMP #define fence() do { } while (0) #define smp_mb() barrier() @@ -81,27 +78,9 @@ static inline void fence(void) #endif #endif -#define read_barrier_depends() do { } while (0) -#define smp_read_barrier_depends() do { } while (0) - -#define smp_store_mb(var, value) do { WRITE_ONCE(var, value); smp_mb(); } while (0) - -#define smp_store_release(p, v) \ -do { \ - compiletime_assert_atomic_type(*p); \ - smp_mb(); \ - WRITE_ONCE(*p, v); \ -} while (0) - -#define smp_load_acquire(p) \ -({ \ - typeof(*p) ___p1 = READ_ONCE(*p); \ - compiletime_assert_atomic_type(*p); \ - smp_mb(); \ - ___p1; \ -}) - #define smp_mb__before_atomic() barrier() #define smp_mb__after_atomic() barrier() +#include <asm-generic/barrier.h> + #endif /* _ASM_METAG_BARRIER_H */ |