diff options
Diffstat (limited to 'src/cpu/testers/traffic_gen/traffic_gen.cc')
| -rw-r--r-- | src/cpu/testers/traffic_gen/traffic_gen.cc | 54 |
1 files changed, 52 insertions, 2 deletions
diff --git a/src/cpu/testers/traffic_gen/traffic_gen.cc b/src/cpu/testers/traffic_gen/traffic_gen.cc index 4b2259bd9..d53c9b000 100644 --- a/src/cpu/testers/traffic_gen/traffic_gen.cc +++ b/src/cpu/testers/traffic_gen/traffic_gen.cc @@ -41,6 +41,7 @@ #include <sstream> +#include "base/intmath.hh" #include "base/random.hh" #include "cpu/testers/traffic_gen/traffic_gen.hh" #include "debug/Checkpoint.hh" @@ -257,7 +258,8 @@ TrafficGen::parseConfig() } else if (mode == "IDLE") { states[id] = new IdleGen(name(), masterID, duration); DPRINTF(TrafficGen, "State: %d IdleGen\n", id); - } else if (mode == "LINEAR" || mode == "RANDOM") { + } else if (mode == "LINEAR" || mode == "RANDOM" || + mode == "DRAM") { uint32_t read_percent; Addr start_addr; Addr end_addr; @@ -277,7 +279,7 @@ TrafficGen::parseConfig() if (blocksize > system->cacheLineSize()) fatal("TrafficGen %s block size (%d) is larger than " - "system block size (%d)\n", name(), + "cache line size (%d)\n", name(), blocksize, system->cacheLineSize()); if (read_percent > 100) @@ -300,6 +302,54 @@ TrafficGen::parseConfig() min_period, max_period, read_percent, data_limit); DPRINTF(TrafficGen, "State: %d RandomGen\n", id); + } else if (mode == "DRAM") { + // stride size (bytes) of the request for achieving + // required hit length + unsigned int stride_size; + unsigned int page_size; + unsigned int nbr_of_banks_DRAM; + unsigned int nbr_of_banks_util; + unsigned int addr_mapping; + + is >> stride_size >> page_size >> nbr_of_banks_DRAM >> + nbr_of_banks_util >> addr_mapping; + + if (stride_size > page_size) + warn("DRAM generator stride size (%d) is greater " + "than page size (%d) of the memory\n", + blocksize, page_size); + + if (nbr_of_banks_util > nbr_of_banks_DRAM) + fatal("Attempting to use more banks (%) than " + "what is available (%)\n", + nbr_of_banks_util, nbr_of_banks_DRAM); + + if (nbr_of_banks_util > nbr_of_banks_DRAM) + fatal("Attempting to use more banks (%) than " + "what is available (%)\n", + nbr_of_banks_util, nbr_of_banks_DRAM); + + // count the number of sequential packets to + // generate + unsigned int num_seq_pkts = 1; + + if (stride_size > blocksize) { + num_seq_pkts = divCeil(stride_size, blocksize); + DPRINTF(TrafficGen, "stride size: %d " + "block size: %d, num_seq_pkts: %d\n", + stride_size, blocksize, num_seq_pkts); + } + + states[id] = new DramGen(name(), masterID, + duration, start_addr, + end_addr, blocksize, + min_period, max_period, + read_percent, data_limit, + num_seq_pkts, page_size, + nbr_of_banks_DRAM, + nbr_of_banks_util, + addr_mapping); + DPRINTF(TrafficGen, "State: %d DramGen\n", id); } } else { fatal("%s: Unknown traffic generator mode: %s", |