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e784d27464
The 'pre_val' MIP addresses the scenario where MIP changes as an instruction is excuting, this means a CSR instruction can observe a different MIP from the one that decides whether or not that instruction will be interrupted.
35 lines
2 KiB
Systemverilog
35 lines
2 KiB
Systemverilog
// Copyright lowRISC contributors.
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// Licensed under the Apache License, Version 2.0, see LICENSE for details.
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// SPDX-License-Identifier: Apache-2.0
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// DPI interface to co-simulation model, see `cosim.h` for the interface description.
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// Implemented as a header file as VCS needs `import` declarations included in each verilog file
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// that uses them.
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`ifndef COSIM_DPI_SVH
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`define COSIM_DPI_SVH
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import "DPI-C" function int riscv_cosim_step(chandle cosim_handle, bit [4:0] write_reg,
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bit [31:0] write_reg_data, bit [31:0] pc, bit sync_trap, bit suppress_reg_write);
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import "DPI-C" function void riscv_cosim_set_mip(chandle cosim_handle, bit [31:0] pre_mip,
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bit [31:0] post_mip);
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import "DPI-C" function void riscv_cosim_set_nmi(chandle cosim_handle, bit nmi);
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import "DPI-C" function void riscv_cosim_set_nmi_int(chandle cosim_handle, bit nmi_int);
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import "DPI-C" function void riscv_cosim_set_debug_req(chandle cosim_handle, bit debug_req);
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import "DPI-C" function void riscv_cosim_set_mcycle(chandle cosim_handle, bit [63:0] mcycle);
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import "DPI-C" function void riscv_cosim_set_csr(chandle cosim_handle, int csr_id,
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bit [31:0] csr_val);
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import "DPI-C" function void riscv_cosim_set_ic_scr_key_valid(chandle cosim_handle, bit valid);
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import "DPI-C" function void riscv_cosim_notify_dside_access(chandle cosim_handle, bit store,
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bit [31:0] addr, bit [31:0] data, bit [3:0] be, bit error, bit misaligned_first,
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bit misaligned_second, bit misaligned_first_saw_error, bit m_mode_access);
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import "DPI-C" function int riscv_cosim_set_iside_error(chandle cosim_handle, bit [31:0] addr);
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import "DPI-C" function int riscv_cosim_get_num_errors(chandle cosim_handle);
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import "DPI-C" function string riscv_cosim_get_error(chandle cosim_handle, int index);
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import "DPI-C" function void riscv_cosim_clear_errors(chandle cosim_handle);
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import "DPI-C" function void riscv_cosim_write_mem_byte(chandle cosim_handle, bit [31:0] addr,
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bit [7:0] d);
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import "DPI-C" function int unsigned riscv_cosim_get_insn_cnt(chandle cosim_handle);
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`endif
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