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/*
* Copyright (c) 2015-2018 Advanced Micro Devices, Inc.
* All rights reserved.
*
* For use for simulation and test purposes only
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Anthony Gutierrez
* Eric van Tassell
*/
/**
* @file
* An HSADriver is an emulated driver that controls an HSA agent,
* or more simply put, an HSA device. An HSA device is a device
* that has an associated HSA packet processor.
*
* In the base HSADriver class the open() method is implemented, as
* well as the mmap() call, which maps the HSA packet processor's
* doorbells. Drivers for other HSA devices should derive from this
* class and implement the necessary methods; typically this is an
* ioctl() method that satisfies the ioctl requests needed to manage
* and control the device.
*/
#ifndef __DEV_HSA_HSA_DRIVER_HH__
#define __DEV_HSA_HSA_DRIVER_HH__
#include "base/types.hh"
#include "sim/emul_driver.hh"
struct HSADriverParams;
class HSADevice;
class PortProxy;
class ThreadContext;
class HSADriver : public EmulatedDriver
{
public:
HSADriver(HSADriverParams *p);
int open(ThreadContext *tc, int mode, int flags);
Addr mmap(ThreadContext *tc, Addr start, uint64_t length,
int prot, int tgtFlags, int tgtFd, int offset);
protected:
/**
* HSA agent (device) that is controled by this driver.
*/
HSADevice *device;
uint32_t queueId;
void allocateQueue(ThreadContext *tc, Addr ioc_buf);
};
#endif // __DEV_HSA_HSA_DRIVER_HH__