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author | Andrew Waterman <waterman@s141.Millennium.Berkeley.EDU> | 2011-06-12 20:27:10 -0700 |
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committer | Andrew Waterman <waterman@s141.Millennium.Berkeley.EDU> | 2011-06-12 20:27:10 -0700 |
commit | 740f981cfd55604d46598144dccac26dd53f643c (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /riscv/sim.cc | |
parent | c0ebf99d6bb3ef3cf252703b50b849bcbaa2ec59 (diff) | |
download | riscv-isa-sim-740f981cfd55604d46598144dccac26dd53f643c.zip riscv-isa-sim-740f981cfd55604d46598144dccac26dd53f643c.tar.gz riscv-isa-sim-740f981cfd55604d46598144dccac26dd53f643c.tar.bz2 |
[sim] renamed to riscv-isa-run
Diffstat (limited to 'riscv/sim.cc')
-rw-r--r-- | riscv/sim.cc | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/riscv/sim.cc b/riscv/sim.cc deleted file mode 100644 index 9b2677c..0000000 --- a/riscv/sim.cc +++ /dev/null @@ -1,351 +0,0 @@ -#include "sim.h" -#include "applink.h" -#include "common.h" -#include <sys/mman.h> -#include <map> -#include <iostream> -#include <climits> -#include <assert.h> - -sim_t::sim_t(int _nprocs, appserver_link_t* _applink, icsim_t* default_icache, icsim_t* default_dcache) - : applink(_applink), - procs(_nprocs) -{ - size_t memsz0 = sizeof(size_t) == 8 ? 0x100000000ULL : 0x70000000UL; - size_t quantum = std::max(PGSIZE, (reg_t)sysconf(_SC_PAGESIZE)); - memsz0 = memsz0/quantum*quantum; - - memsz = memsz0; - mem = (char*)mmap64(NULL, memsz, PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); - - if(mem == MAP_FAILED) - { - while(mem == MAP_FAILED && (memsz = memsz*10/11/quantum*quantum)) - mem = (char*)mmap64(NULL, memsz, PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); - assert(mem != MAP_FAILED); - fprintf(stderr, "warning: only got %lu bytes of target mem (wanted %lu)\n", - (unsigned long)memsz, (unsigned long)memsz0); - } - - mmu = new mmu_t(mem, memsz); - - for(size_t i = 0; i < num_cores(); i++) - { - procs[i] = new processor_t(this, new mmu_t(mem, memsz)); - procs[i]->init(i, default_icache, default_dcache); - } - - applink->init(this); -} - -sim_t::~sim_t() -{ - for(size_t i = 0; i < num_cores(); i++) - { - mmu_t* pmmu = &procs[i]->mmu; - delete procs[i]; - delete pmmu; - } - delete mmu; - munmap(mem, memsz); -} - -void sim_t::set_tohost(reg_t val) -{ - fromhost = 0; - tohost = val; - applink->wait_for_tohost(); -} - -reg_t sim_t::get_fromhost() -{ - applink->wait_for_fromhost(); - return fromhost; -} - -void sim_t::send_ipi(reg_t who) -{ - if(who < num_cores()) - procs[who]->deliver_ipi(); -} - -void sim_t::run(bool debug) -{ - applink->wait_for_start(); - - // start core 0 - send_ipi(0); - - while(1) - { - if(!debug) - step_all(100,100,false); - else - { - putchar(':'); - char s[128]; - std::cin.getline(s,sizeof(s)-1); - - char* p = strtok(s," "); - if(!p) - { - interactive_run_noisy(std::string("r"), std::vector<std::string>(1,"1")); - continue; - } - std::string cmd = p; - - std::vector<std::string> args; - while((p = strtok(NULL," "))) - args.push_back(p); - - - typedef void (sim_t::*interactive_func)(const std::string&, const std::vector<std::string>&); - std::map<std::string,interactive_func> funcs; - - funcs["r"] = &sim_t::interactive_run_noisy; - funcs["rs"] = &sim_t::interactive_run_silent; - funcs["rp"] = &sim_t::interactive_run_proc_noisy; - funcs["rps"] = &sim_t::interactive_run_proc_silent; - funcs["reg"] = &sim_t::interactive_reg; - funcs["fregs"] = &sim_t::interactive_fregs; - funcs["fregd"] = &sim_t::interactive_fregd; - funcs["mem"] = &sim_t::interactive_mem; - funcs["str"] = &sim_t::interactive_str; - funcs["until"] = &sim_t::interactive_until; - funcs["while"] = &sim_t::interactive_until; - funcs["q"] = &sim_t::interactive_quit; - - try - { - if(funcs.count(cmd)) - (this->*funcs[cmd])(cmd, args); - } - catch(trap_t t) {} - } - } -} - -void sim_t::step_all(size_t n, size_t interleave, bool noisy) -{ - for(size_t j = 0; j < n; j+=interleave) - for(int i = 0; i < (int)num_cores(); i++) - procs[i]->step(interleave,noisy); -} - -void sim_t::interactive_run_noisy(const std::string& cmd, const std::vector<std::string>& args) -{ - interactive_run(cmd,args,true); -} - -void sim_t::interactive_run_silent(const std::string& cmd, const std::vector<std::string>& args) -{ - interactive_run(cmd,args,false); -} - -void sim_t::interactive_run(const std::string& cmd, const std::vector<std::string>& args, bool noisy) -{ - if(args.size()) - step_all(atoll(args[0].c_str()),1,noisy); - else - while(1) step_all(1,1,noisy); -} - -void sim_t::interactive_run_proc_noisy(const std::string& cmd, const std::vector<std::string>& args) -{ - interactive_run_proc(cmd,args,true); -} - -void sim_t::interactive_run_proc_silent(const std::string& cmd, const std::vector<std::string>& args) -{ - interactive_run_proc(cmd,args,false); -} - -void sim_t::interactive_run_proc(const std::string& cmd, const std::vector<std::string>& a, bool noisy) -{ - if(a.size() == 0) - return; - - int p = atoi(a[0].c_str()); - if(p >= (int)num_cores()) - return; - - if(a.size() == 2) - procs[p]->step(atoi(a[1].c_str()),noisy); - else - while(1) procs[p]->step(1,noisy); -} - -void sim_t::interactive_quit(const std::string& cmd, const std::vector<std::string>& args) -{ - throw quit_sim(); -} - -reg_t sim_t::get_pc(const std::vector<std::string>& args) -{ - if(args.size() != 1) - throw trap_illegal_instruction; - - int p = atoi(args[0].c_str()); - if(p >= (int)num_cores()) - throw trap_illegal_instruction; - - return procs[p]->pc; -} - -reg_t sim_t::get_reg(const std::vector<std::string>& args) -{ - if(args.size() != 2) - throw trap_illegal_instruction; - - int p = atoi(args[0].c_str()); - int r = atoi(args[1].c_str()); - if(p >= (int)num_cores() || r >= NXPR) - throw trap_illegal_instruction; - - return procs[p]->XPR[r]; -} - -reg_t sim_t::get_freg(const std::vector<std::string>& args) -{ - if(args.size() != 2) - throw trap_illegal_instruction; - - int p = atoi(args[0].c_str()); - int r = atoi(args[1].c_str()); - if(p >= (int)num_cores() || r >= NFPR) - throw trap_illegal_instruction; - - return procs[p]->FPR[r]; -} - -reg_t sim_t::get_tohost(const std::vector<std::string>& args) -{ - if(args.size() != 1) - throw trap_illegal_instruction; - - int p = atoi(args[0].c_str()); - if(p >= (int)num_cores()) - throw trap_illegal_instruction; - - return procs[p]->tohost; -} - -void sim_t::interactive_reg(const std::string& cmd, const std::vector<std::string>& args) -{ - printf("0x%016llx\n",(unsigned long long)get_reg(args)); -} - -union fpr -{ - reg_t r; - float s; - double d; -}; - -void sim_t::interactive_fregs(const std::string& cmd, const std::vector<std::string>& args) -{ - fpr f; - f.r = get_freg(args); - printf("%g\n",f.s); -} - -void sim_t::interactive_fregd(const std::string& cmd, const std::vector<std::string>& args) -{ - fpr f; - f.r = get_freg(args); - printf("%g\n",f.d); -} - -reg_t sim_t::get_mem(const std::vector<std::string>& args) -{ - if(args.size() != 1 && args.size() != 2) - throw trap_illegal_instruction; - - std::string addr_str = args[0]; - if(args.size() == 2) - { - int p = atoi(args[0].c_str()); - if(p >= (int)num_cores()) - throw trap_illegal_instruction; - mmu->set_vm_enabled(!!(procs[p]->sr & SR_VM)); - mmu->set_ptbr(procs[p]->mmu.get_ptbr()); - addr_str = args[1]; - } - - reg_t addr = strtol(addr_str.c_str(),NULL,16), val; - if(addr == LONG_MAX) - addr = strtoul(addr_str.c_str(),NULL,16); - - switch(addr % 8) - { - case 0: - val = mmu->load_uint64(addr); - break; - case 4: - val = mmu->load_uint32(addr); - break; - case 2: - case 6: - val = mmu->load_uint16(addr); - break; - default: - val = mmu->load_uint8(addr); - break; - } - return val; -} - -void sim_t::interactive_mem(const std::string& cmd, const std::vector<std::string>& args) -{ - printf("0x%016llx\n",(unsigned long long)get_mem(args)); -} - -void sim_t::interactive_str(const std::string& cmd, const std::vector<std::string>& args) -{ - if(args.size() != 1) - throw trap_illegal_instruction; - - reg_t addr = strtol(args[0].c_str(),NULL,16); - - char ch; - while((ch = mmu->load_uint8(addr++))) - putchar(ch); - - putchar('\n'); -} - -void sim_t::interactive_until(const std::string& cmd, const std::vector<std::string>& args) -{ - if(args.size() < 3) - return; - - std::string scmd = args[0]; - reg_t val = strtol(args[args.size()-1].c_str(),NULL,16); - if(val == LONG_MAX) - val = strtoul(args[args.size()-1].c_str(),NULL,16); - - std::vector<std::string> args2; - args2 = std::vector<std::string>(args.begin()+1,args.end()-1); - - while(1) - { - reg_t current; - if(scmd == "reg") - current = get_reg(args2); - else if(scmd == "pc") - current = get_pc(args2); - else if(scmd == "mem") - current = get_mem(args2); - else if(scmd == "tohost") - current = get_tohost(args2); - else - return; - - if(cmd == "until" && current == val) - break; - if(cmd == "while" && current != val) - break; - - step_all(1,1,false); - } -} |