/********************************************************** * MIT License * * Copyright (c) 2018 LNIS - The University of Utah * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. ***********************************************************************/ /************************************************************************ * Filename: check_circuit_library.cpp * Created by: Xifan Tang * Change history: * +-------------------------------------+ * | Date | Author | Notes * +-------------------------------------+ * | 2019/08/12 | Xifan Tang | Created * +-------------------------------------+ ***********************************************************************/ /************************************************************************ * Function to perform fundamental checking for the circuit library * such as * 1. if default circuit models are defined * 2. if any circuit models shared the same name or prefix * 3. if nay circuit model miss mandatory ports ***********************************************************************/ /* Header files should be included in a sequence */ /* Standard header files required go first */ #include "vtr_assert.h" #include "util.h" #include "check_circuit_library.h" /************************************************************************ * Circuit models have unique names, return the number of errors * If not found, we give an error ***********************************************************************/ static size_t check_circuit_library_unique_names(const CircuitLibrary& circuit_lib) { size_t num_err = 0; for (size_t i = 0; i < circuit_lib.num_models(); ++i) { /* Skip for the last element, because the inner loop will access it */ if (i == circuit_lib.num_models() - 1) { continue; } /* Get the name of reference */ const std::string& i_name = circuit_lib.model_name(CircuitModelId(i)); for (size_t j = i + 1; j < circuit_lib.num_models(); ++j) { /* Compare the name of candidate */ const std::string& j_name = circuit_lib.model_name(CircuitModelId(j)); /* Compare the name and skip for different names */ if (0 != i_name.compare(j_name)) { continue; } vpr_printf(TIO_MESSAGE_ERROR, "Circuit model(index=%d) and (index=%d) share the same name, which is invalid!\n", i , j, i_name.c_str()); /* Incremental the counter for errors */ num_err++; } } return num_err; } /************************************************************************ * Circuit models have unique names, return the number of errors * If not found, we give an error ***********************************************************************/ static size_t check_circuit_library_unique_prefix(const CircuitLibrary& circuit_lib) { size_t num_err = 0; for (size_t i = 0; i < circuit_lib.num_models(); ++i) { /* Skip for the last element, because the inner loop will access it */ if (i == circuit_lib.num_models() - 1) { continue; } /* Get the name of reference */ const std::string& i_prefix = circuit_lib.model_prefix(CircuitModelId(i)); for (size_t j = i + 1; j < circuit_lib.num_models(); ++j) { /* Compare the name of candidate */ const std::string& j_prefix = circuit_lib.model_prefix(CircuitModelId(j)); /* Compare the name and skip for different prefix */ if (0 != i_prefix.compare(j_prefix)) { continue; } vpr_printf(TIO_MESSAGE_ERROR, "Circuit model(name=%s) and (name=%s) share the same prefix, which is invalid!\n", circuit_lib.model_name(CircuitModelId(i)).c_str(), circuit_lib.model_name(CircuitModelId(j)).c_str(), i_prefix.c_str()); /* Incremental the counter for errors */ num_err++; } } return num_err; } /************************************************************************ * A generic function to check the port list of a circuit model in a given type * If not found, we give an error ***********************************************************************/ static size_t check_circuit_model_required(const CircuitLibrary& circuit_lib, const enum e_spice_model_type& circuit_model_type_to_check) { size_t num_err = 0; /* We must have an IOPAD*/ if ( 0 == circuit_lib.models_by_type(circuit_model_type_to_check).size()) { vpr_printf(TIO_MESSAGE_ERROR, "At least one %s circuit model is required!\n", CIRCUIT_MODEL_TYPE_STRING[size_t(circuit_model_type_to_check)]); /* Incremental the counter for errors */ num_err++; } return num_err; } /************************************************************************ * A generic function to check the port list of a circuit model in a given type * If not found, we give an error ***********************************************************************/ size_t check_one_circuit_model_port_required(const CircuitLibrary& circuit_lib, const CircuitModelId& circuit_model, const std::vector& port_types_to_check) { size_t num_err = 0; for (const auto& port_type: port_types_to_check) { if (0 == circuit_lib.model_ports_by_type(circuit_model, port_type).size()) { vpr_printf(TIO_MESSAGE_ERROR, "%s circuit model(name=%s) does not have %s port\n", CIRCUIT_MODEL_TYPE_STRING[size_t(circuit_lib.model_type(circuit_model))], circuit_lib.model_name(circuit_model).c_str(), CIRCUIT_MODEL_PORT_TYPE_STRING[size_t(port_type)]); /* Incremental the counter for errors */ num_err++; } } return num_err; } /************************************************************************ * A generic function to check the port size of a given circuit model * if the port size does not match, we give an error ***********************************************************************/ size_t check_one_circuit_model_port_size_required(const CircuitLibrary& circuit_lib, const CircuitModelId& circuit_model, const CircuitPortId& circuit_port, const size_t& port_size_to_check) { size_t num_err = 0; if (port_size_to_check != circuit_lib.port_size(circuit_port)) { vpr_printf(TIO_MESSAGE_ERROR, "Port of circuit model(name=%s) does not have a port(type=%s) of size=%d.\n", circuit_lib.model_name(circuit_model).c_str(), CIRCUIT_MODEL_PORT_TYPE_STRING[size_t(circuit_lib.port_type(circuit_port))], port_size_to_check); /* Incremental the counter for errors */ num_err++; } return num_err; } /************************************************************************ * A generic function to check the port size of a given circuit model * if the number of ports in the given type does not match, we give an error * for each port, if the port size does not match, we give an error ***********************************************************************/ size_t check_one_circuit_model_port_type_and_size_required(const CircuitLibrary& circuit_lib, const CircuitModelId& circuit_model, const enum e_spice_model_port_type& port_type_to_check, const size_t& num_ports_to_check, const size_t& port_size_to_check, const bool& include_global_ports) { size_t num_err = 0; std::vector ports = circuit_lib.model_ports_by_type(circuit_model, port_type_to_check, false == include_global_ports); if (num_ports_to_check != ports.size()) { vpr_printf(TIO_MESSAGE_ERROR, "Expect %d %s ports for a %s circuit model, but only have %d %s ports!\n", num_ports_to_check, CIRCUIT_MODEL_PORT_TYPE_STRING[size_t(port_type_to_check)], CIRCUIT_MODEL_TYPE_STRING[size_t(circuit_lib.model_type(circuit_model))], CIRCUIT_MODEL_PORT_TYPE_STRING[size_t(port_type_to_check)], ports.size()); num_err++; } for (const auto& port : ports) { num_err += check_one_circuit_model_port_size_required(circuit_lib, circuit_model, port, port_size_to_check); } return num_err; } /************************************************************************ * A generic function to check the port list of circuit models in a given type * If not found, we give an error ***********************************************************************/ static size_t check_circuit_model_port_required(const CircuitLibrary& circuit_lib, const enum e_spice_model_type& circuit_model_type_to_check, const std::vector& port_types_to_check) { size_t num_err = 0; for (const auto& id : circuit_lib.models_by_type(circuit_model_type_to_check)) { num_err += check_one_circuit_model_port_required(circuit_lib, id, port_types_to_check); } return num_err; } /************************************************************************ * A generic function to find the default circuit model with a given type * If not found, we give an error ***********************************************************************/ static size_t check_required_default_circuit_model(const CircuitLibrary& circuit_lib, const enum e_spice_model_type& circuit_model_type) { size_t num_err = 0; if (CircuitModelId::INVALID() == circuit_lib.default_model(circuit_model_type)) { vpr_printf(TIO_MESSAGE_ERROR, "A default circuit model for the type %s! Try to define it in your architecture file!\n", CIRCUIT_MODEL_TYPE_STRING[size_t(circuit_model_type)]); exit(1); } return num_err; } /************************************************************************ * A function to check the port map of FF circuit model ***********************************************************************/ size_t check_ff_circuit_model_ports(const CircuitLibrary& circuit_lib, const CircuitModelId& circuit_model) { size_t num_err = 0; /* Check the type of circuit model */ VTR_ASSERT(SPICE_MODEL_FF == circuit_lib.model_type(circuit_model)); /* Check if we have D, Set and Reset */ num_err += check_one_circuit_model_port_type_and_size_required(circuit_lib, circuit_model, SPICE_MODEL_PORT_INPUT, 3, 1, false); /* Check if we have a clock */ num_err += check_one_circuit_model_port_type_and_size_required(circuit_lib, circuit_model, SPICE_MODEL_PORT_CLOCK, 1, 1, false); /* Check if we have output */ num_err += check_one_circuit_model_port_type_and_size_required(circuit_lib, circuit_model, SPICE_MODEL_PORT_OUTPUT, 1, 1, false); return num_err; } /************************************************************************ * A function to check the port map of SCFF circuit model ***********************************************************************/ size_t check_scff_circuit_model_ports(const CircuitLibrary& circuit_lib, const CircuitModelId& circuit_model) { size_t num_err = 0; /* Check the type of circuit model */ VTR_ASSERT(SPICE_MODEL_SCFF == circuit_lib.model_type(circuit_model)); /* Check if we have D, Set and Reset */ num_err += check_one_circuit_model_port_type_and_size_required(circuit_lib, circuit_model, SPICE_MODEL_PORT_INPUT, 1, 1, false); /* Check if we have a clock */ num_err += check_one_circuit_model_port_type_and_size_required(circuit_lib, circuit_model, SPICE_MODEL_PORT_CLOCK, 1, 1, true); /* Check if we have output */ num_err += check_one_circuit_model_port_type_and_size_required(circuit_lib, circuit_model, SPICE_MODEL_PORT_OUTPUT, 2, 1, false); return num_err; } /************************************************************************ * A function to check the port map of SRAM circuit model ***********************************************************************/ size_t check_sram_circuit_model_ports(const CircuitLibrary& circuit_lib, const CircuitModelId& circuit_model, const bool& check_blwl) { size_t num_err = 0; /* Check the type of circuit model */ VTR_ASSERT(SPICE_MODEL_SRAM == circuit_lib.model_type(circuit_model)); /* Check if we has 1 output with size 2 */ num_err += check_one_circuit_model_port_type_and_size_required(circuit_lib, circuit_model, SPICE_MODEL_PORT_OUTPUT, 1, 2, false); /* basic check finished here */ if (false == check_blwl) { return num_err; } /* If bl and wl are required, check their existence */ num_err += check_one_circuit_model_port_type_and_size_required(circuit_lib, circuit_model, SPICE_MODEL_PORT_BL, 1, 1, false); num_err += check_one_circuit_model_port_type_and_size_required(circuit_lib, circuit_model, SPICE_MODEL_PORT_WL, 1, 1, false); return num_err; } /* Check all the ports make sure, they satisfy the restriction */ static size_t check_circuit_library_ports(const CircuitLibrary& circuit_lib) { size_t num_err = 0; /* Check global ports: make sure all the global ports are input ports */ for (const auto& port : circuit_lib.ports()) { if ( (circuit_lib.port_is_global(port)) && (!circuit_lib.is_input_port(port)) ) { vpr_printf(TIO_MESSAGE_ERROR, "Circuit port (type=%s) of model (name=%s) is defined as global but not an input port!\n", CIRCUIT_MODEL_PORT_TYPE_STRING[size_t(circuit_lib.port_type(port))], circuit_lib.model_name(port).c_str()); num_err++; } } /* Check set/reset/config_enable ports: make sure they are all global ports */ for (const auto& port : circuit_lib.ports()) { if ( ( (circuit_lib.port_is_set(port)) || (circuit_lib.port_is_reset(port)) || (circuit_lib.port_is_config_enable(port)) ) && (!circuit_lib.port_is_global(port)) ) { vpr_printf(TIO_MESSAGE_ERROR, "Circuit port (type=%s) of model (name=%s) is defined as a set/reset/config_enable port but it is not global!\n", CIRCUIT_MODEL_PORT_TYPE_STRING[size_t(circuit_lib.port_type(port))], circuit_lib.model_name(port).c_str()); num_err++; } } return num_err; } /************************************************************************ * Check points to make sure we have a valid circuit library * Detailed checkpoints: * 1. Circuit models have unique names * 2. Circuit models have unique prefix * 3. Check IOPADs have input and output ports * 4. Check MUXes has been defined and has input and output ports * 5. We must have at least one SRAM or SCFF * 6. SRAM must have at least an input and an output ports * 7. SCFF must have at least a clock, an input and an output ports * 8. FF must have at least a clock, an input and an output ports * 9. LUT must have at least an input, an output and a SRAM ports * 10. We must have default circuit models for these types: MUX, channel wires and wires ***********************************************************************/ void check_circuit_library(const CircuitLibrary& circuit_lib) { size_t num_err = 0; vpr_printf(TIO_MESSAGE_INFO, "Checking circuit models...\n"); /* 1. Circuit models have unique names * For each circuit model, we always make sure it does not share any name with any circuit model locating after it */ num_err += check_circuit_library_unique_names(circuit_lib); /* 2. Circuit models have unique prefix * For each circuit model, we always make sure it does not share any prefix with any circuit model locating after it */ num_err += check_circuit_library_unique_prefix(circuit_lib); /* Check global ports */ num_err += check_circuit_library_ports(circuit_lib); /* 3. Check io has been defined and has input and output ports * [a] We must have an IOPAD! * [b] For each IOPAD, we must have at least an input, an output, an INOUT and an SRAM port */ num_err += check_circuit_model_required(circuit_lib, SPICE_MODEL_IOPAD); std::vector iopad_port_types_required; iopad_port_types_required.push_back(SPICE_MODEL_PORT_INPUT); iopad_port_types_required.push_back(SPICE_MODEL_PORT_OUTPUT); iopad_port_types_required.push_back(SPICE_MODEL_PORT_INOUT); iopad_port_types_required.push_back(SPICE_MODEL_PORT_SRAM); num_err += check_circuit_model_port_required(circuit_lib, SPICE_MODEL_IOPAD, iopad_port_types_required); /* 4. Check mux has been defined and has input and output ports * [a] We must have a MUX! * [b] For each MUX, we must have at least an input, an output, and an SRAM port */ num_err += check_circuit_model_required(circuit_lib, SPICE_MODEL_MUX); std::vector mux_port_types_required; mux_port_types_required.push_back(SPICE_MODEL_PORT_INPUT); mux_port_types_required.push_back(SPICE_MODEL_PORT_OUTPUT); mux_port_types_required.push_back(SPICE_MODEL_PORT_SRAM); num_err += check_circuit_model_port_required(circuit_lib, SPICE_MODEL_MUX, mux_port_types_required); /* 5. We must have at least one SRAM or SCFF */ if ( ( 0 == circuit_lib.models_by_type(SPICE_MODEL_SRAM).size()) && ( 0 == circuit_lib.models_by_type(SPICE_MODEL_SCFF).size()) ) { vpr_printf(TIO_MESSAGE_ERROR, "At least one %s or %s circuit model is required!\n", CIRCUIT_MODEL_TYPE_STRING[size_t(SPICE_MODEL_SRAM)], CIRCUIT_MODEL_TYPE_STRING[size_t(SPICE_MODEL_SCFF)]); /* Incremental the counter for errors */ num_err++; } /* 6. SRAM must have at least an input and an output ports*/ std::vector sram_port_types_required; sram_port_types_required.push_back(SPICE_MODEL_PORT_INPUT); sram_port_types_required.push_back(SPICE_MODEL_PORT_OUTPUT); num_err += check_circuit_model_port_required(circuit_lib, SPICE_MODEL_SRAM, sram_port_types_required); /* 7. SCFF must have at least a clock, an input and an output ports*/ std::vector scff_port_types_required; scff_port_types_required.push_back(SPICE_MODEL_PORT_CLOCK); scff_port_types_required.push_back(SPICE_MODEL_PORT_INPUT); scff_port_types_required.push_back(SPICE_MODEL_PORT_OUTPUT); num_err += check_circuit_model_port_required(circuit_lib, SPICE_MODEL_SCFF, scff_port_types_required); /* 8. FF must have at least a clock, an input and an output ports*/ std::vector ff_port_types_required; ff_port_types_required.push_back(SPICE_MODEL_PORT_CLOCK); ff_port_types_required.push_back(SPICE_MODEL_PORT_INPUT); ff_port_types_required.push_back(SPICE_MODEL_PORT_OUTPUT); num_err += check_circuit_model_port_required(circuit_lib, SPICE_MODEL_FF, ff_port_types_required); /* 9. LUT must have at least an input, an output and a SRAM ports*/ std::vector lut_port_types_required; lut_port_types_required.push_back(SPICE_MODEL_PORT_SRAM); lut_port_types_required.push_back(SPICE_MODEL_PORT_INPUT); lut_port_types_required.push_back(SPICE_MODEL_PORT_OUTPUT); num_err += check_circuit_model_port_required(circuit_lib, SPICE_MODEL_LUT, lut_port_types_required); /* 10. We must have default circuit models for these types: MUX, channel wires and wires */ num_err += check_required_default_circuit_model(circuit_lib, SPICE_MODEL_MUX); num_err += check_required_default_circuit_model(circuit_lib, SPICE_MODEL_CHAN_WIRE); num_err += check_required_default_circuit_model(circuit_lib, SPICE_MODEL_WIRE); /* If we have any errors, exit */ vpr_printf(TIO_MESSAGE_INFO, "Finished checking circuit library with %d errors!\n", num_err); if (0 < num_err) { exit(1); } return; } /************************************************************************ * End of file : check_circuit_library.cpp ***********************************************************************/