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346eacb46c
When Ibex does a load that receives data with bad integrity it suppresses the write to the destination register. The implements matching functionality for cosim.
34 lines
1.9 KiB
Systemverilog
34 lines
1.9 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] 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);
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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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