hip_runtime.h

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/*
Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#pragma once

//---
// Top part of file can be compiled with any compiler


#include <cstring>
#include <cmath>
#include <string.h>
#include <stddef.h>


#define CUDA_SUCCESS hipSuccess

#include <hip_runtime_api.h>

//---
// Remainder of this file only compiles with HCC
#ifdef __HCC__
#include <hc.hpp>
#include <grid_launch.h>

//TODO-HCC-GL - change this to typedef.
//typedef grid_launch_parm hipLaunchParm ;
#define hipLaunchParm grid_launch_parm

#include <hcc_detail/hip_texture.h>
#include <hcc_detail/host_defines.h>

// TODO-HCC remove old definitions ; ~1602 hcc supports __HCC_ACCELERATOR__ define.
#if defined (__KALMAR_ACCELERATOR__) && not defined (__HCC_ACCELERATOR__)
#define __HCC_ACCELERATOR__  __KALMAR_ACCELERATOR__
#endif

// Feature tests:
#if defined(__HCC_ACCELERATOR__) and (__HCC_ACCELERATOR__ != 0)
// Device compile and not host compile:


#define __HIP_DEVICE_COMPILE__ 1

//TODO-HCC enable __HIP_ARCH_HAS_ATOMICS__ when HCC supports these.
    // 32-bit Atomics:
#define __HIP_ARCH_HAS_GLOBAL_INT32_ATOMICS__       (1)
#define __HIP_ARCH_HAS_GLOBAL_FLOAT_ATOMIC_EXCH__   (1)
#define __HIP_ARCH_HAS_SHARED_INT32_ATOMICS__       (0)
#define __HIP_ARCH_HAS_SHARED_FLOAT_ATOMIC_EXCH__   (0)
#define __HIP_ARCH_HAS_FLOAT_ATOMIC_ADD__           (0)

// 64-bit Atomics:
#define __HIP_ARCH_HAS_GLOBAL_INT64_ATOMICS__       (1)
#define __HIP_ARCH_HAS_SHARED_INT64_ATOMICS__       (0)

// Doubles
#define __HIP_ARCH_HAS_DOUBLES__                    (1)

//warp cross-lane operations:
#define __HIP_ARCH_HAS_WARP_VOTE__                  (1)
#define __HIP_ARCH_HAS_WARP_BALLOT__                (1)
#define __HIP_ARCH_HAS_WARP_SHUFFLE__               (1)
#define __HIP_ARCH_HAS_WARP_FUNNEL_SHIFT__          (0)

//sync
#define __HIP_ARCH_HAS_THREAD_FENCE_SYSTEM__        (0)
#define __HIP_ARCH_HAS_SYNC_THREAD_EXT__            (0)

// misc
#define __HIP_ARCH_HAS_SURFACE_FUNCS__              (0)
#define __HIP_ARCH_HAS_3DGRID__                     (1)
#define __HIP_ARCH_HAS_DYNAMIC_PARALLEL__           (0)

#else
// Host compile and not device compile:
#define __HIP_DEVICE_COMPILE__ 0

#endif





//TODO-HCC  this is currently ignored by HCC target of HIP
#define __launch_bounds__(requiredMaxThreadsPerBlock, minBlocksPerMultiprocessor)

// Detect if we are compiling C++ mode or C mode
#if defined(__cplusplus)
#define __HCC_CPP__
#elif defined(__STDC_VERSION__)
#define __HCC_C__
#endif

#define clock_t long long int
__device__ inline long long int clock64() { return (long long int)hc::__clock_u64(); };
__device__ inline clock_t clock() { return (clock_t)hc::__clock_u64(); };

//atomicAdd()
__device__ inline int atomicAdd(int* address, int val)
{
    return hc::atomic_fetch_add(address,val);
}
__device__ inline unsigned int atomicAdd(unsigned int* address,
                       unsigned int val)
{
   return hc::atomic_fetch_add(address,val);
}
__device__ inline unsigned long long int atomicAdd(unsigned long long int* address,
                                 unsigned long long int val)
{
 return (long long int)hc::atomic_fetch_add((uint64_t*)address,(uint64_t)val);
}
__device__ inline float atomicAdd(float* address, float val)
{
    return hc::atomic_fetch_add(address,val);
}

//atomicSub()
__device__ inline int atomicSub(int* address, int val)
{
    return hc::atomic_fetch_sub(address,val);
}
__device__ inline unsigned int atomicSub(unsigned int* address,
                       unsigned int val)
{
   return hc::atomic_fetch_sub(address,val);
}

//atomicExch()
__device__ inline int atomicExch(int* address, int val)
{
    return hc::atomic_exchange(address,val);
}
__device__ inline unsigned int atomicExch(unsigned int* address,
                        unsigned int val)
{
    return hc::atomic_exchange(address,val);
}
__device__ inline unsigned long long int atomicExch(unsigned long long int* address,
                                  unsigned long long int val)
{
    return (long long int)hc::atomic_exchange((uint64_t*)address,(uint64_t)val);
}
__device__ inline float atomicExch(float* address, float val)
{
    return hc::atomic_exchange(address,val);
}

//atomicMin()
__device__ inline int atomicMin(int* address, int val)
{
    return hc::atomic_fetch_min(address,val);
}
__device__ inline unsigned int atomicMin(unsigned int* address,
                       unsigned int val)
{
    return hc::atomic_fetch_min(address,val);
}
__device__ inline unsigned long long int atomicMin(unsigned long long int* address,
                                 unsigned long long int val)
{
    return (long long int)hc::atomic_fetch_min((uint64_t*)address,(uint64_t)val);
}

//atomicMax()
__device__ inline int atomicMax(int* address, int val)
{
    return hc::atomic_fetch_max(address,val);
}
__device__ inline unsigned int atomicMax(unsigned int* address,
                       unsigned int val)
{
    return hc::atomic_fetch_max(address,val);
}
__device__ inline unsigned long long int atomicMax(unsigned long long int* address,
                                 unsigned long long int val)
{
    return (long long int)hc::atomic_fetch_max((uint64_t*)address,(uint64_t)val);
}

//atomicInc()
__device__ inline unsigned int atomicInc(unsigned int* address)
{
    return hc::atomic_fetch_inc(address);
}

//atomicDec()
__device__ inline unsigned int atomicDec(unsigned int* address)
{
    return hc::atomic_fetch_dec(address);
}

//atomicCAS()
__device__ inline int atomicCAS(int* address, int compare, int val)
{
    hc::atomic_compare_exchange(address,&compare,val);
    return *address;
}
__device__ inline unsigned int atomicCAS(unsigned int* address,
                       unsigned int compare,
                       unsigned int val)
{
    hc::atomic_compare_exchange(address,&compare,val);
    return *address;
}
__device__ inline unsigned long long int atomicCAS(unsigned long long int* address,
                                 unsigned long long int compare,
                                 unsigned long long int val)
{
    hc::atomic_compare_exchange((uint64_t*)address,(uint64_t*)&compare,(uint64_t)val);
    return *address;
}

//atomicAnd()
__device__ inline int atomicAnd(int* address, int val)
{
    return hc::atomic_fetch_and(address,val);
}
__device__ inline unsigned int atomicAnd(unsigned int* address,
                       unsigned int val)
{
    return hc::atomic_fetch_and(address,val);
}
__device__ inline unsigned long long int atomicAnd(unsigned long long int* address,
                                 unsigned long long int val)
{
    return (long long int)hc::atomic_fetch_and((uint64_t*)address,(uint64_t)val);
}

//atomicOr()
__device__ inline int atomicOr(int* address, int val)
{
    return hc::atomic_fetch_or(address,val);
}
__device__ inline unsigned int atomicOr(unsigned int* address,
                      unsigned int val)
{
    return hc::atomic_fetch_or(address,val);
}
__device__ inline unsigned long long int atomicOr(unsigned long long int* address,
                                unsigned long long int val)
{
    return (long long int)hc::atomic_fetch_or((uint64_t*)address,(uint64_t)val);
}

//atomicXor()
__device__ inline int atomicXor(int* address, int val)
{
    return hc::atomic_fetch_xor(address,val);
}
__device__ inline unsigned int atomicXor(unsigned int* address,
                       unsigned int val)
{
    return hc::atomic_fetch_xor(address,val);
}
__device__ inline unsigned long long int atomicXor(unsigned long long int* address,
                                 unsigned long long int val)
{
    return (long long int)hc::atomic_fetch_xor((uint64_t*)address,(uint64_t)val);
}

#ifdef __HCC__
#include <hc.hpp>
// integer intrinsic function __poc __clz __ffs __brev
__device__ inline unsigned int __popc( unsigned int input) 
{
    return hc::__popcount_u32_b32( input);
}

__device__ inline unsigned int __popcll( unsigned long long int input) 
{
    return hc::__popcount_u32_b64(input);
}

__device__ inline unsigned int __clz(unsigned int input) 
{
    return hc::__firstbit_u32_u32( input);
}

__device__ inline unsigned int __clzll(unsigned long long int input) 
{
    return hc::__firstbit_u32_u64( input);
}

__device__ inline unsigned int __clz(int input) 
{
    return hc::__firstbit_u32_s32(  input);
}

__device__ inline unsigned int __clzll(long long int input) 
{
    return hc::__firstbit_u32_s64( input);
}

__device__ inline unsigned int __ffs(unsigned int input) 
{
    return hc::__lastbit_u32_u32( input)+1;
}

__device__ inline unsigned int __ffsll(unsigned long long int input) 
{
    return hc::__lastbit_u32_u64( input)+1;
}

__device__ inline unsigned int __brev( unsigned int input) 
{
    return hc::__bitrev_b32( input);
}

__device__ inline unsigned long long int __brevll( unsigned long long int input) 
{
    return hc::__bitrev_b64( input);
}

// warp vote function __all __any __ballot

__device__ inline int __all(  int input) 
{
    return hc::__all( input);
}


__device__ inline int __any( int input) 
{
    return hc::__any( input);
}


__device__ inline unsigned long long int __ballot( int input) 
{
    return hc::__ballot( input);
}

#endif



#ifdef __HCC_ACCELERATOR__
#include <hc_math.hpp>
// TODO: Choose whether default is precise math or fast math based on compilation flag.
using namespace hc::precise_math;

//TODO: Undo this once min/max functions are supported by hc
inline int min(int arg1, int arg2) __attribute((hc,cpu)) { \
  return (int)(hc::precise_math::fmin((float)arg1, (float)arg2));}
inline int max(int arg1, int arg2) __attribute((hc,cpu)) { \
  return (int)(hc::precise_math::fmax((float)arg1, (float)arg2));}


//TODO - add a couple fast math operations here, the set here will grow :
__device__ inline float __log2f(float x) {return hc::fast_math::log2(x); };
__device__ inline float __powf(float base, float exponent) {return hc::fast_math::powf(base, exponent); };

#endif



#define hipThreadIdx_x (amp_get_local_id(2))
#define hipThreadIdx_y (amp_get_local_id(1))
#define hipThreadIdx_z (amp_get_local_id(0))

#define hipBlockIdx_x  (hc_get_group_id(2))
#define hipBlockIdx_y  (hc_get_group_id(1))
#define hipBlockIdx_z  (hc_get_group_id(0))

#define hipBlockDim_x  (amp_get_local_size(2))
#define hipBlockDim_y  (amp_get_local_size(1))
#define hipBlockDim_z  (amp_get_local_size(0))

#define hipGridDim_x   (hc_get_num_groups(2))
#define hipGridDim_y   (hc_get_num_groups(1))
#define hipGridDim_z   (hc_get_num_groups(0))


extern int warpSize ;


#define __syncthreads() hc_barrier(CLK_LOCAL_MEM_FENCE)


#if 0
#define KALMAR_PFE_BEGIN() \
      hc::extent<3> ext(lp.gridDim.x, lp.gridDim.y, lp.gridDim.z);\
      auto __hipExtTile = ext.tile(lp.groupDim.x, lp.groupDim.y, lp.groupDim.z);\
      __hipExtTile.set_dynamic_group_segment_size(lp.groupMemBytes);\
    \
      hc::completion_future cf = hc::parallel_for_each (\
              *lp.av,\
              __hipExtTile,\
              [=] (hc::tiled_index<3> __hipIdx) mutable [[hc]]



#define KALMAR_PFE_END \
              );  \
    if (HIP_LAUNCH_BLOCKING) {\
        if (HIP_TRACE_API) {\
            fprintf(stderr, "hiptrace1: HIP_LAUNCH_BLOCKING ...\n");\
        }\
        cf.wait(); \
        if (HIP_TRACE_API) {\
            fprintf(stderr, "hiptrace1: ...completed.\n");\
        }\
    }
#endif



#define HIP_KERNEL_NAME(...) __VA_ARGS__


#ifdef __HCC_CPP__
hc::accelerator_view *ihipLaunchKernel(hipStream_t stream);

#if not defined(DISABLE_GRID_LAUNCH)
#define hipLaunchKernel(_kernelName, _numBlocks3D, _blockDim3D, _groupMemBytes, _stream, ...) \
do {\
  grid_launch_parm lp;\
  lp.gridDim.x = _numBlocks3D.x; \
  lp.gridDim.y = _numBlocks3D.y; \
  lp.gridDim.z = _numBlocks3D.z; \
  lp.groupDim.x = _blockDim3D.x; \
  lp.groupDim.y = _blockDim3D.y; \
  lp.groupDim.z = _blockDim3D.z; \
  lp.groupMemBytes = _groupMemBytes;\
  hc::completion_future cf;\
  lp.cf = &cf;  \
  lp.av = (ihipLaunchKernel(_stream)); \
    if (HIP_TRACE_API) {\
        fprintf(stderr, "hiptrace1: launch '%s' gridDim:[%d.%d.%d] groupDim:[%d.%d.%d] groupMem:+%d stream=%p\n", \
                #_kernelName, lp.gridDim.z, lp.gridDim.y, lp.gridDim.x, lp.groupDim.z, lp.groupDim.y, lp.groupDim.x, lp.groupMemBytes, (void*)(_stream));\
    }\
  _kernelName (lp, __VA_ARGS__);\
} while(0)

#else
#warning(DISABLE_GRID_LAUNCH set)

#define hipLaunchKernel(_kernelName, _numBlocks3D, _blockDim3D, _groupMemBytes, _stream, ...) \
do {\
  grid_launch_parm lp;\
  lp.gridDim.x = _numBlocks3D.x * _blockDim3D.x;/*Convert from #blocks to #threads*/ \
  lp.gridDim.y = _numBlocks3D.y * _blockDim3D.y;/*Convert from #blocks to #threads*/ \
  lp.gridDim.z = _numBlocks3D.z * _blockDim3D.z;/*Convert from #blocks to #threads*/ \
  lp.groupDim.x = _blockDim3D.x; \
  lp.groupDim.y = _blockDim3D.y; \
  lp.groupDim.z = _blockDim3D.z; \
  lp.groupMemBytes = _groupMemBytes;\
  hc::completion_future cf;\
  lp.cf = &cf;  \
  lp.av = (ihipLaunchKernel(_stream)); \
    if (HIP_TRACE_API) {\
        fprintf(stderr, "hiptrace1: launch '%s' gridDim:[%d.%d.%d] groupDim:[%d.%d.%d] groupMem:+%d stream=%p\n", \
                #_kernelName, lp.gridDim.z, lp.gridDim.y, lp.gridDim.x, lp.groupDim.z, lp.groupDim.y, lp.groupDim.x, lp.groupMemBytes, (void*)(_stream));\
    }\
  _kernelName (lp, __VA_ARGS__);\
} while(0)
/*end hipLaunchKernel */
#endif

#elif defined (__HCC_C__)

//TODO - develop C interface.

#endif


#if not defined(DISABLE_GRID_LAUNCH)
// TODO -In GL these are no-ops and can be removed:
// Keep them around for a little while as a fallback.
#define KERNELBEGIN
#define KERNELEND

#else

// TODO-GL:
// These wrap the kernel in a PFE loop with macros.
// Not required with GL but exist here as a fallback.
#define KERNELBEGIN \
      hc::extent<3> ext(lp.gridDim.x, lp.gridDim.y, lp.gridDim.z);\
      auto __hipExtTile = ext.tile(lp.groupDim.x, lp.groupDim.y, lp.groupDim.z);\
      __hipExtTile.set_dynamic_group_segment_size(lp.groupMemBytes);\
      \
      hc::completion_future cf = \
      hc::parallel_for_each (\
              *lp.av,\
              __hipExtTile,\
              [=] (hc::tiled_index<3> __hipIdx) mutable [[hc]] \
      {


#define KERNELEND \
              });  \
    if (HIP_LAUNCH_BLOCKING) {\
        if (HIP_TRACE_API) {\
            fprintf(stderr, "hiptrace1: HIP_LAUNCH_BLOCKING ...\n");\
        }\
        cf.wait(); \
        if (HIP_TRACE_API) {\
            fprintf(stderr, "hiptrace1: ...completed.\n");\
        }\
    }

#endif /*DISABLE_GRID_LAUNCH*/


#endif // __HCC__


extern int HIP_PRINT_ENV ;   
extern int HIP_TRACE_API;    
extern int HIP_LAUNCH_BLOCKING ; 

// End doxygen API: