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| author | Carl Worth <cworth@cworth.org> | 2015-02-05 15:36:59 -0800 |
|---|---|---|
| committer | Carl Worth <cworth@cworth.org> | 2015-02-09 10:47:44 -0800 |
| commit | b16de0b713fb4d5d1c5600d126e4ce945fc27303 (patch) | |
| tree | 5515a59772d2fe67ed7a5d1883619c59a2e06071 /src/util/u_atomic.h | |
| parent | 345e8cc8496b4e6c56105c7396e80d85a37e122c (diff) | |
| download | external_mesa3d-b16de0b713fb4d5d1c5600d126e4ce945fc27303.zip external_mesa3d-b16de0b713fb4d5d1c5600d126e4ce945fc27303.tar.gz external_mesa3d-b16de0b713fb4d5d1c5600d126e4ce945fc27303.tar.bz2 | |
util/u_atomic: Add new macro p_atomic_add
This provides for atomic addition, which will be used by an upcoming
shader-cache patch. A simple test is added to "make check" as well.
Note: The various O/S functions differ on whether they return the
original value or the value after the addition, so I did not provide
an add_return() macro which would be sensitive to that difference.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
Diffstat (limited to 'src/util/u_atomic.h')
| -rw-r--r-- | src/util/u_atomic.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/util/u_atomic.h b/src/util/u_atomic.h index cf7fff3..e123e17 100644 --- a/src/util/u_atomic.h +++ b/src/util/u_atomic.h @@ -39,6 +39,7 @@ #define p_atomic_dec_zero(v) (__sync_sub_and_fetch((v), 1) == 0) #define p_atomic_inc(v) (void) __sync_add_and_fetch((v), 1) #define p_atomic_dec(v) (void) __sync_sub_and_fetch((v), 1) +#define p_atomic_add(v, i) (void) __sync_add_and_fetch((v), (i)) #define p_atomic_inc_return(v) __sync_add_and_fetch((v), 1) #define p_atomic_dec_return(v) __sync_sub_and_fetch((v), 1) #define p_atomic_cmpxchg(v, old, _new) \ @@ -60,6 +61,7 @@ #define p_atomic_dec_zero(_v) (p_atomic_dec_return(_v) == 0) #define p_atomic_inc(_v) ((void) p_atomic_inc_return(_v)) #define p_atomic_dec(_v) ((void) p_atomic_dec_return(_v)) +#define p_atomic_add(_v, _i) (*(_v) = *(_v) + (_i)) #define p_atomic_inc_return(_v) (++(*(_v))) #define p_atomic_dec_return(_v) (--(*(_v))) #define p_atomic_cmpxchg(_v, _old, _new) (*(_v) == (_old) ? (*(_v) = (_new), (_old)) : *(_v)) @@ -144,6 +146,13 @@ char _InterlockedCompareExchange8(char volatile *Destination8, char Exchange8, c sizeof *(_v) == sizeof(__int64) ? InterlockedDecrement64 ((__int64 *)(_v)) : \ (assert(!"should not get here"), 0)) +#define p_atomic_add(_v, _i) (\ + sizeof *(_v) == sizeof(char) ? _InterlockedExchangeAdd8 ((char *) (_v), (_i)) : \ + sizeof *(_v) == sizeof(short) ? _InterlockedExchangeAdd16((short *) (_v), (_i)) : \ + sizeof *(_v) == sizeof(long) ? _InterlockedExchangeAdd ((long *) (_v), (_i)) : \ + sizeof *(_v) == sizeof(__int64) ? InterlockedExchangeAdd64((__int64 *)(_v), (_i)) : \ + (assert(!"should not get here"), 0)) + #define p_atomic_cmpxchg(_v, _old, _new) (\ sizeof *(_v) == sizeof(char) ? _InterlockedCompareExchange8 ((char *) (_v), (char) (_new), (char) (_old)) : \ sizeof *(_v) == sizeof(short) ? _InterlockedCompareExchange16((short *) (_v), (short) (_new), (short) (_old)) : \ @@ -198,6 +207,13 @@ char _InterlockedCompareExchange8(char volatile *Destination8, char Exchange8, c sizeof(*v) == sizeof(uint64_t) ? atomic_dec_64_nv((uint64_t *)(v)) : \ (assert(!"should not get here"), 0)) +#define p_atomic_add(v, i) ((void) \ + sizeof(*v) == sizeof(uint8_t) ? atomic_add_8 ((uint8_t *)(v), (i)) : \ + sizeof(*v) == sizeof(uint16_t) ? atomic_add_16((uint16_t *)(v), (i)) : \ + sizeof(*v) == sizeof(uint32_t) ? atomic_add_32((uint32_t *)(v), (i)) : \ + sizeof(*v) == sizeof(uint64_t) ? atomic_add_64((uint64_t *)(v), (i)) : \ + (assert(!"should not get here"), 0)) + #define p_atomic_cmpxchg(v, old, _new) ((typeof(*v)) \ sizeof(*v) == sizeof(uint8_t) ? atomic_cas_8 ((uint8_t *)(v), (uint8_t )(old), (uint8_t )(_new)) : \ sizeof(*v) == sizeof(uint16_t) ? atomic_cas_16((uint16_t *)(v), (uint16_t)(old), (uint16_t)(_new)) : \ |