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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.txt for details.
//
//===----------------------------------------------------------------------===//
/*! \file
\brief The interface between compiler-generated host code and runtime library
*/
#ifndef COMPILER_IF_HOST_H_INCLUDED
#define COMPILER_IF_HOST_H_INCLUDED
#include "offload_host.h"
#define OFFLOAD_TARGET_ACQUIRE OFFLOAD_PREFIX(target_acquire)
#define OFFLOAD_TARGET_ACQUIRE1 OFFLOAD_PREFIX(target_acquire1)
#define OFFLOAD_OFFLOAD OFFLOAD_PREFIX(offload)
#define OFFLOAD_OFFLOAD1 OFFLOAD_PREFIX(offload1)
#define OFFLOAD_OFFLOAD2 OFFLOAD_PREFIX(offload2)
#define OFFLOAD_CALL_COUNT OFFLOAD_PREFIX(offload_call_count)
/*! \fn OFFLOAD_TARGET_ACQUIRE
\brief Attempt to acquire the target.
\param target_type The type of target.
\param target_number The device number.
\param is_optional Whether CPU fall-back is allowed.
\param status Address of variable to hold offload status.
\param file Filename in which this offload occurred.
\param line Line number in the file where this offload occurred.
*/
extern "C" OFFLOAD OFFLOAD_TARGET_ACQUIRE(
TARGET_TYPE target_type,
int target_number,
int is_optional,
_Offload_status* status,
const char* file,
uint64_t line
);
/*! \fn OFFLOAD_TARGET_ACQUIRE1
\brief Acquire the target for offload (OpenMP).
\param device_number Device number or null if not specified.
\param file Filename in which this offload occurred
\param line Line number in the file where this offload occurred.
*/
extern "C" OFFLOAD OFFLOAD_TARGET_ACQUIRE1(
const int* device_number,
const char* file,
uint64_t line
);
/*! \fn OFFLOAD_OFFLOAD1
\brief Run function on target using interface for old data persistence.
\param o Offload descriptor created by OFFLOAD_TARGET_ACQUIRE.
\param name Name of offload entry point.
\param is_empty If no code to execute (e.g. offload_transfer)
\param num_vars Number of variable descriptors.
\param vars Pointer to VarDesc array.
\param vars2 Pointer to VarDesc2 array.
\param num_waits Number of "wait" values.
\param waits Pointer to array of wait values.
\param signal Pointer to signal value or NULL.
*/
extern "C" int OFFLOAD_OFFLOAD1(
OFFLOAD o,
const char *name,
int is_empty,
int num_vars,
VarDesc *vars,
VarDesc2 *vars2,
int num_waits,
const void** waits,
const void** signal
);
/*! \fn OFFLOAD_OFFLOAD2
\brief Run function on target using interface for new data persistence.
\param o Offload descriptor created by OFFLOAD_TARGET_ACQUIRE.
\param name Name of offload entry point.
\param is_empty If no code to execute (e.g. offload_transfer)
\param num_vars Number of variable descriptors.
\param vars Pointer to VarDesc array.
\param vars2 Pointer to VarDesc2 array.
\param num_waits Number of "wait" values.
\param waits Pointer to array of wait values.
\param signal Pointer to signal value or NULL.
\param entry_id A signature for the function doing the offload.
\param stack_addr The stack frame address of the function doing offload.
*/
extern "C" int OFFLOAD_OFFLOAD2(
OFFLOAD o,
const char *name,
int is_empty,
int num_vars,
VarDesc *vars,
VarDesc2 *vars2,
int num_waits,
const void** waits,
const void** signal,
int entry_id,
const void *stack_addr
);
// Run function on target (obsolete).
// @param o OFFLOAD object
// @param name function name
extern "C" int OFFLOAD_OFFLOAD(
OFFLOAD o,
const char *name,
int is_empty,
int num_vars,
VarDesc *vars,
VarDesc2 *vars2,
int num_waits,
const void** waits,
const void* signal,
int entry_id = 0,
const void *stack_addr = NULL
);
// Global counter on host.
// This variable is used if P2OPT_offload_do_data_persistence == 2.
// The variable used to identify offload constructs contained in one procedure.
// Call to OFFLOAD_CALL_COUNT() is inserted at HOST on entry of the routine.
extern "C" int OFFLOAD_CALL_COUNT();
#endif // COMPILER_IF_HOST_H_INCLUDED
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