diff options
| author | Mai Lavelle <mai.lavelle@gmail.com> | 2017-02-22 15:41:18 +0300 |
|---|---|---|
| committer | Mai Lavelle <mai.lavelle@gmail.com> | 2017-03-08 08:52:41 +0300 |
| commit | dfd6055eb0798c8cba245d47cd4a3fe51270a52a (patch) | |
| tree | 43c31f17dcf71bfad540a21889874c54742ba6b8 /intern/cycles/util | |
| parent | bc652766e8a4941110d9102b14889fdd09154db9 (diff) | |
Cycles: Add more atomic operations
Diffstat (limited to 'intern/cycles/util')
| -rw-r--r-- | intern/cycles/util/util_atomic.h | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/intern/cycles/util/util_atomic.h b/intern/cycles/util/util_atomic.h index 433e41fbbb6..6c52117ef9a 100644 --- a/intern/cycles/util/util_atomic.h +++ b/intern/cycles/util/util_atomic.h @@ -32,6 +32,13 @@ ATOMIC_INLINE void atomic_update_max_z(size_t *maximum_value, size_t value) } } +#define atomic_add_and_fetch_float(p, x) atomic_add_and_fetch_fl((p), (x)) + +#define atomic_fetch_and_inc_uint32(p) atomic_fetch_and_add_uint32((p), 1) + +#define CCL_LOCAL_MEM_FENCE 0 +#define ccl_barrier(flags) (void)0 + #else /* __KERNEL_GPU__ */ #ifdef __KERNEL_OPENCL__ @@ -39,7 +46,7 @@ ATOMIC_INLINE void atomic_update_max_z(size_t *maximum_value, size_t value) /* Float atomics implementation credits: * http://suhorukov.blogspot.in/2011/12/opencl-11-atomic-operations-on-floating.html */ -ccl_device_inline void atomic_add_and_fetch_float(volatile ccl_global float *source, +ccl_device_inline float atomic_add_and_fetch_float(volatile ccl_global float *source, const float operand) { union { @@ -56,10 +63,29 @@ ccl_device_inline void atomic_add_and_fetch_float(volatile ccl_global float *sou } while(atomic_cmpxchg((volatile ccl_global unsigned int *)source, prev_value.int_value, new_value.int_value) != prev_value.int_value); + return new_value.float_value; } +#define atomic_fetch_and_add_uint32(p, x) atomic_add((p), (x)) +#define atomic_fetch_and_inc_uint32(p) atomic_inc((p)) + +#define CCL_LOCAL_MEM_FENCE CLK_LOCAL_MEM_FENCE +#define ccl_barrier(flags) barrier(flags) + #endif /* __KERNEL_OPENCL__ */ +#ifdef __KERNEL_CUDA__ + +#define atomic_add_and_fetch_float(p, x) (atomicAdd((float*)(p), (float)(x)) + (float)(x)) + +#define atomic_fetch_and_add_uint32(p, x) atomicAdd((unsigned int*)(p), (unsigned int)(x)) +#define atomic_fetch_and_inc_uint32(p) atomic_fetch_and_add_uint32((p), 1) + +#define CCL_LOCAL_MEM_FENCE +#define ccl_barrier(flags) __syncthreads() + +#endif /* __KERNEL_CUDA__ */ + #endif /* __KERNEL_GPU__ */ #endif /* __UTIL_ATOMIC_H__ */ |