Besar Wicaksono
199 خطوط
6.6 KiB
C++
199 خطوط
6.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// The University of Illinois/NCSA
|
|
// Open Source License (NCSA)
|
|
//
|
|
// Copyright (c) 2014-2015, Advanced Micro Devices, Inc. All rights reserved.
|
|
//
|
|
// Developed by:
|
|
//
|
|
// AMD Research and AMD HSA Software Development
|
|
//
|
|
// Advanced Micro Devices, Inc.
|
|
//
|
|
// www.amd.com
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to
|
|
// deal with 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:
|
|
//
|
|
// - Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimers.
|
|
// - Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimers in
|
|
// the documentation and/or other materials provided with the distribution.
|
|
// - Neither the names of Advanced Micro Devices, Inc,
|
|
// nor the names of its contributors may be used to endorse or promote
|
|
// products derived from this Software without specific prior written
|
|
// permission.
|
|
//
|
|
// 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 CONTRIBUTORS 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 WITH THE SOFTWARE.
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// HSA runtime C++ interface file.
|
|
|
|
#ifndef HSA_RUNTME_CORE_INC_INTERRUPT_SIGNAL_H_
|
|
#define HSA_RUNTME_CORE_INC_INTERRUPT_SIGNAL_H_
|
|
|
|
#include "hsakmt.h"
|
|
|
|
#include "core/inc/runtime.h"
|
|
#include "core/inc/signal.h"
|
|
#include "core/util/utils.h"
|
|
|
|
namespace core {
|
|
|
|
/// @brief A Signal implementation using interrupts versus plain memory based.
|
|
/// Also see base class Signal.
|
|
///
|
|
/// Breaks common/vendor separation - signals in general needs to be re-worked
|
|
/// at the foundation level to make sense in a multi-device system.
|
|
/// Supports only one waiter for now.
|
|
/// KFD changes are needed to support multiple waiters and have device
|
|
/// signaling.
|
|
class InterruptSignal : public Signal {
|
|
public:
|
|
static HsaEvent* CreateEvent(HSA_EVENTTYPE type, bool manual_reset);
|
|
static void DestroyEvent(HsaEvent* evt);
|
|
|
|
/// @brief Determines if a Signal* can be safely converted to an
|
|
/// InterruptSignal* via static_cast.
|
|
static __forceinline bool IsType(Signal* ptr) {
|
|
return ptr->IsType(&rtti_id_);
|
|
}
|
|
|
|
explicit InterruptSignal(hsa_signal_value_t initial_value,
|
|
HsaEvent* use_event = NULL);
|
|
|
|
~InterruptSignal();
|
|
|
|
// Below are various methods corresponding to the APIs, which load/store the
|
|
// signal value or modify the existing signal value automically and with
|
|
// specified memory ordering semantics.
|
|
|
|
hsa_signal_value_t LoadRelaxed();
|
|
|
|
hsa_signal_value_t LoadAcquire();
|
|
|
|
void StoreRelaxed(hsa_signal_value_t value);
|
|
|
|
void StoreRelease(hsa_signal_value_t value);
|
|
|
|
hsa_signal_value_t WaitRelaxed(hsa_signal_condition_t condition,
|
|
hsa_signal_value_t compare_value,
|
|
uint64_t timeout, hsa_wait_state_t wait_hint);
|
|
|
|
hsa_signal_value_t WaitAcquire(hsa_signal_condition_t condition,
|
|
hsa_signal_value_t compare_value,
|
|
uint64_t timeout, hsa_wait_state_t wait_hint);
|
|
|
|
void AndRelaxed(hsa_signal_value_t value);
|
|
|
|
void AndAcquire(hsa_signal_value_t value);
|
|
|
|
void AndRelease(hsa_signal_value_t value);
|
|
|
|
void AndAcqRel(hsa_signal_value_t value);
|
|
|
|
void OrRelaxed(hsa_signal_value_t value);
|
|
|
|
void OrAcquire(hsa_signal_value_t value);
|
|
|
|
void OrRelease(hsa_signal_value_t value);
|
|
|
|
void OrAcqRel(hsa_signal_value_t value);
|
|
|
|
void XorRelaxed(hsa_signal_value_t value);
|
|
|
|
void XorAcquire(hsa_signal_value_t value);
|
|
|
|
void XorRelease(hsa_signal_value_t value);
|
|
|
|
void XorAcqRel(hsa_signal_value_t value);
|
|
|
|
void AddRelaxed(hsa_signal_value_t value);
|
|
|
|
void AddAcquire(hsa_signal_value_t value);
|
|
|
|
void AddRelease(hsa_signal_value_t value);
|
|
|
|
void AddAcqRel(hsa_signal_value_t value);
|
|
|
|
void SubRelaxed(hsa_signal_value_t value);
|
|
|
|
void SubAcquire(hsa_signal_value_t value);
|
|
|
|
void SubRelease(hsa_signal_value_t value);
|
|
|
|
void SubAcqRel(hsa_signal_value_t value);
|
|
|
|
hsa_signal_value_t ExchRelaxed(hsa_signal_value_t value);
|
|
|
|
hsa_signal_value_t ExchAcquire(hsa_signal_value_t value);
|
|
|
|
hsa_signal_value_t ExchRelease(hsa_signal_value_t value);
|
|
|
|
hsa_signal_value_t ExchAcqRel(hsa_signal_value_t value);
|
|
|
|
hsa_signal_value_t CasRelaxed(hsa_signal_value_t expected,
|
|
hsa_signal_value_t value);
|
|
|
|
hsa_signal_value_t CasAcquire(hsa_signal_value_t expected,
|
|
hsa_signal_value_t value);
|
|
|
|
hsa_signal_value_t CasRelease(hsa_signal_value_t expected,
|
|
hsa_signal_value_t value);
|
|
|
|
hsa_signal_value_t CasAcqRel(hsa_signal_value_t expected,
|
|
hsa_signal_value_t value);
|
|
|
|
/// @brief See base class Signal.
|
|
__forceinline hsa_signal_value_t* ValueLocation() const {
|
|
return (hsa_signal_value_t*)&signal_.value;
|
|
}
|
|
|
|
/// @brief See base class Signal.
|
|
__forceinline HsaEvent* EopEvent() { return event_; }
|
|
|
|
/// @brief prevent throwing exceptions
|
|
void* operator new(size_t size) { return malloc(size); }
|
|
|
|
/// @brief prevent throwing exceptions
|
|
void operator delete(void* ptr) { free(ptr); }
|
|
|
|
protected:
|
|
bool _IsA(rtti_t id) const { return id == &rtti_id_; }
|
|
|
|
private:
|
|
/// @variable KFD event on which the interrupt signal is based on.
|
|
HsaEvent* event_;
|
|
|
|
/// @variable Indicates whether the signal should release the event when it
|
|
/// closes or not.
|
|
bool free_event_;
|
|
|
|
/// Used to obtain a globally unique value (address) for rtti.
|
|
static int rtti_id_;
|
|
|
|
/// @brief Notify driver of signal value change if necessary.
|
|
__forceinline void SetEvent() {
|
|
std::atomic_signal_fence(std::memory_order_seq_cst);
|
|
if (InWaiting()) hsaKmtSetEvent(event_);
|
|
}
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(InterruptSignal);
|
|
};
|
|
|
|
} // namespace core
|
|
#endif // header guard
|