69eb60d87e
This patch implements the RISC-V HiFive Platform (based on the SiFive HiFive series). The HiFive platform requires a PLIC and CLINT device (based on current HiFive boards). The optional uart_int_id field redirects Console interrupts to the PLIC interrupt controller. PlicDevice is a wrapper around BasicPioDevice that requires an interrupt ID. Interrupts are expected to be raised via platform->postPciInterrupt(id). VirtIOMMIO is a slight modification from the ARM implementation such that interrupts are posted through PLIC PlicDevice is a wrapper around BasicPioDevice that requires an interrupt ID. Interrupts are expected to be raised via platform->postPciInterrupt(id). VirtIOMMIO is a slight modification from the ARM implementation such that interrupts are posted through PLIC. Uart8250 was modified slightly for easier Python setup. Change-Id: I4bbdb5f903b52a41d1b7e0ccc44877c46cd30d56 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/40599 Reviewed-by: Ayaz Akram <yazakram@ucdavis.edu> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com>
74 lines
2.8 KiB
C++
74 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2021 Huawei International
|
|
* All rights reserved
|
|
*
|
|
* The license below extends only to copyright in the software and shall
|
|
* not be construed as granting a license to any other intellectual
|
|
* property including but not limited to intellectual property relating
|
|
* to a hardware implementation of the functionality of the software
|
|
* licensed hereunder. You may use the software subject to the license
|
|
* terms below provided that you ensure that this notice is replicated
|
|
* unmodified and in its entirety in all distributions of the software,
|
|
* modified or unmodified, in source code or in binary form.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met: redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer;
|
|
* 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;
|
|
* neither the name of the copyright holders 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
|
|
* OWNER 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.
|
|
*/
|
|
|
|
#ifndef __DEV_RISCV_HIFIVE_HH__
|
|
#define __DEV_RISCV_HIFIVE_HH__
|
|
|
|
#include "dev/platform.hh"
|
|
#include "dev/riscv/clint.hh"
|
|
#include "dev/riscv/plic.hh"
|
|
#include "params/HiFive.hh"
|
|
|
|
using namespace RiscvISA;
|
|
class HiFive : public Platform {
|
|
public:
|
|
System *system;
|
|
Clint *clint;
|
|
Plic *plic;
|
|
int uartIntID;
|
|
|
|
public:
|
|
typedef HiFiveParams Params;
|
|
HiFive(const Params ¶ms);
|
|
|
|
void postConsoleInt() override;
|
|
|
|
void clearConsoleInt() override;
|
|
|
|
void postPciInt(int line) override;
|
|
|
|
void clearPciInt(int line) override;
|
|
|
|
virtual Addr pciToDma(Addr pciAddr) const;
|
|
|
|
void serialize(CheckpointOut &cp) const override;
|
|
|
|
void unserialize(CheckpointIn &cp) override;
|
|
};
|
|
|
|
#endif // __DEV_RISCV_HIFIVE_HH__
|