78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2017, MINRES Technologies GmbH
|
|
// All rights reserved.
|
|
//
|
|
// 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.
|
|
//
|
|
// Contributors:
|
|
// eyck@minres.com - initial implementation
|
|
//
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _PLIC_H_
|
|
#define _PLIC_H_
|
|
|
|
#include <scc/register.h>
|
|
#include <scc/tlm_target.h>
|
|
|
|
namespace sysc {
|
|
|
|
class plic_regs;
|
|
|
|
class plic : public sc_core::sc_module, public scc::tlm_target<> {
|
|
public:
|
|
SC_HAS_PROCESS(plic);
|
|
sc_core::sc_in<sc_core::sc_time> clk_i;
|
|
sc_core::sc_in<bool> rst_i;
|
|
sc_core::sc_vector<sc_core::sc_in<bool>> global_interrupts_i;
|
|
sc_core::sc_out<bool> core_interrupt_o;
|
|
sc_core::sc_event raise_int_ev;
|
|
sc_core::sc_event clear_int_ev;
|
|
plic(sc_core::sc_module_name nm);
|
|
~plic() override;
|
|
|
|
protected:
|
|
void clock_cb();
|
|
void reset_cb();
|
|
void init_callbacks();
|
|
|
|
void global_int_port_cb();
|
|
void handle_pending_int();
|
|
void reset_pending_int(uint32_t irq);
|
|
|
|
void raise_core_interrupt();
|
|
void clear_core_interrupt();
|
|
sc_core::sc_time clk;
|
|
std::unique_ptr<plic_regs> regs;
|
|
std::function<bool(scc::sc_register<uint32_t>, uint32_t)> m_claim_complete_write_cb;
|
|
};
|
|
|
|
} /* namespace sysc */
|
|
|
|
#endif /* _PLIC_H_ */
|