bool debug_module_data_t::load(reg_t addr, size_t len, uint8_t* bytes)
{
- D(fprintf(stderr, "debug_module_data_t load 0x%lx bytes at 0x%lx\n", len,
- addr));
-
if (addr + len < sizeof(data)) {
memcpy(bytes, data + addr, len);
return true;
action_executed(false)
{
dmcontrol = {0};
- dmcontrol.version = 1;
+
+ dmstatus = {0};
+ dmstatus.authenticated = 1;
+ dmstatus.versionlo = 2;
+
+ abstractcs = {0};
+ abstractcs.progsize = progsize;
+
+ abstractauto = {0};
for (unsigned i = 0; i < DEBUG_ROM_ENTRY_SIZE / 4; i++) {
write32(debug_rom_entry, i, jal(ZERO, 0));
}
dmcontrol = {0};
- dmcontrol.authenticated = 1;
- dmcontrol.version = 1;
- dmcontrol.authtype = dmcontrol.AUTHTYPE_NOAUTH;
+
+ dmstatus = {0};
+ dmstatus.authenticated = 1;
+ dmstatus.versionlo = 2;
abstractcs = {0};
abstractcs.datacount = sizeof(dmdata.data) / 4;
+ abstractcs.progsize = progsize;
+
+ abstractauto = {0};
}
void debug_module_t::add_device(bus_t *bus) {
bool debug_module_t::load(reg_t addr, size_t len, uint8_t* bytes)
{
- D(fprintf(stderr, "debug_module_t load 0x%lx bytes at 0x%lx\n",
- len, addr));
addr = DEBUG_START + addr;
if (addr >= DEBUG_ROM_ENTRY &&
unsigned i = address - DMI_DATA0;
result = dmdata.read32(4 * i);
- bool autoexec = false;
- switch (i) {
- case 0: autoexec = abstractcs.autoexec0; break;
- case 1: autoexec = abstractcs.autoexec1; break;
- case 2: autoexec = abstractcs.autoexec2; break;
- case 3: autoexec = abstractcs.autoexec3; break;
- case 4: autoexec = abstractcs.autoexec4; break;
- case 5: autoexec = abstractcs.autoexec5; break;
- case 6: autoexec = abstractcs.autoexec6; break;
- case 7: autoexec = abstractcs.autoexec7; break;
+ if (abstractcs.busy && abstractcs.cmderr == abstractcs.CMDERR_NONE) {
+ abstractcs.cmderr = abstractcs.CMDERR_BUSY;
}
- if (autoexec) {
+
+ if ((abstractauto.autoexecdata >> i) & 1)
perform_abstract_command();
- }
- } else if (address >= DMI_IBUF0 && address < DMI_IBUF0 + progsize) {
- result = read32(program_buffer, address - DMI_IBUF0);
+ } else if (address >= DMI_PROGBUF0 && address < DMI_PROGBUF0 + progsize) {
+ result = read32(program_buffer, address - DMI_PROGBUF0);
} else {
switch (address) {
case DMI_DMCONTROL:
{
processor_t *proc = current_proc();
+ if (proc)
+ dmcontrol.haltreq = proc->halt_request;
+
+ result = set_field(result, DMI_DMCONTROL_HALTREQ, dmcontrol.haltreq);
+ result = set_field(result, DMI_DMCONTROL_RESUMEREQ, dmcontrol.resumereq);
+ result = set_field(result, DMI_DMCONTROL_HARTSEL, dmcontrol.hartsel);
+ result = set_field(result, DMI_DMCONTROL_HARTRESET, dmcontrol.hartreset);
+ result = set_field(result, DMI_DMCONTROL_NDMRESET, dmcontrol.ndmreset);
+ result = set_field(result, DMI_DMCONTROL_DMACTIVE, dmcontrol.dmactive);
+ }
+ break;
+ case DMI_DMSTATUS:
+ {
+ processor_t *proc = current_proc();
+
+ dmstatus.allnonexistant = false;
+ dmstatus.allunavail = false;
+ dmstatus.allrunning = false;
+ dmstatus.allhalted = false;
if (proc) {
if (halted[dmcontrol.hartsel]) {
- dmcontrol.hartstatus = dmcontrol.HARTSTATUS_HALTED;
+ dmstatus.allhalted = true;
} else {
- dmcontrol.hartstatus = dmcontrol.HARTSTATUS_RUNNING;
+ dmstatus.allrunning = true;
}
- dmcontrol.haltreq = proc->halt_request;
} else {
- dmcontrol.hartstatus = dmcontrol.HARTSTATUS_NOTEXIST;
+ dmstatus.allnonexistant = true;
}
- result = set_field(result, DMI_DMCONTROL_HALTREQ, dmcontrol.haltreq);
- result = set_field(result, DMI_DMCONTROL_RESET, dmcontrol.reset);
- result = set_field(result, DMI_DMCONTROL_DMACTIVE, dmcontrol.dmactive);
- result = set_field(result, DMI_DMCONTROL_HARTSTATUS, dmcontrol.hartstatus);
- result = set_field(result, DMI_DMCONTROL_HARTSEL, dmcontrol.hartsel);
- result = set_field(result, DMI_DMCONTROL_AUTHENTICATED, dmcontrol.authenticated);
- result = set_field(result, DMI_DMCONTROL_AUTHBUSY, dmcontrol.authbusy);
- result = set_field(result, DMI_DMCONTROL_AUTHTYPE, dmcontrol.authtype);
- result = set_field(result, DMI_DMCONTROL_VERSION, dmcontrol.version);
+ dmstatus.anynonexistant = dmstatus.allnonexistant;
+ dmstatus.anyunavail = dmstatus.allunavail;
+ dmstatus.anyrunning = dmstatus.allrunning;
+ dmstatus.anyhalted = dmstatus.allhalted;
+
+ result = set_field(result, DMI_DMSTATUS_ALLNONEXISTENT, dmstatus.allnonexistant);
+ result = set_field(result, DMI_DMSTATUS_ALLUNAVAIL, dmstatus.allunavail);
+ result = set_field(result, DMI_DMSTATUS_ALLRUNNING, dmstatus.allrunning);
+ result = set_field(result, DMI_DMSTATUS_ALLHALTED, dmstatus.allhalted);
+ result = set_field(result, DMI_DMSTATUS_ANYNONEXISTENT, dmstatus.anynonexistant);
+ result = set_field(result, DMI_DMSTATUS_ANYUNAVAIL, dmstatus.anyunavail);
+ result = set_field(result, DMI_DMSTATUS_ANYRUNNING, dmstatus.anyrunning);
+ result = set_field(result, DMI_DMSTATUS_ANYHALTED, dmstatus.anyhalted);
+ result = set_field(result, DMI_DMSTATUS_AUTHENTICATED, dmstatus.authenticated);
+ result = set_field(result, DMI_DMSTATUS_AUTHBUSY, dmstatus.authbusy);
+ result = set_field(result, DMI_DMSTATUS_VERSIONHI, dmstatus.versionhi);
+ result = set_field(result, DMI_DMSTATUS_VERSIONLO, dmstatus.versionlo);
}
- break;
+ break;
case DMI_ABSTRACTCS:
- result = set_field(result, DMI_ABSTRACTCS_AUTOEXEC7, abstractcs.autoexec7);
- result = set_field(result, DMI_ABSTRACTCS_AUTOEXEC6, abstractcs.autoexec6);
- result = set_field(result, DMI_ABSTRACTCS_AUTOEXEC5, abstractcs.autoexec5);
- result = set_field(result, DMI_ABSTRACTCS_AUTOEXEC4, abstractcs.autoexec4);
- result = set_field(result, DMI_ABSTRACTCS_AUTOEXEC3, abstractcs.autoexec3);
- result = set_field(result, DMI_ABSTRACTCS_AUTOEXEC2, abstractcs.autoexec2);
- result = set_field(result, DMI_ABSTRACTCS_AUTOEXEC1, abstractcs.autoexec1);
- result = set_field(result, DMI_ABSTRACTCS_AUTOEXEC0, abstractcs.autoexec0);
result = set_field(result, DMI_ABSTRACTCS_CMDERR, abstractcs.cmderr);
result = set_field(result, DMI_ABSTRACTCS_BUSY, abstractcs.busy);
result = set_field(result, DMI_ABSTRACTCS_DATACOUNT, abstractcs.datacount);
+ result = set_field(result, DMI_ABSTRACTCS_PROGSIZE, abstractcs.progsize);
break;
- case DMI_ACCESSCS:
- result = progsize << DMI_ACCESSCS_PROGSIZE_OFFSET;
+ case DMI_ABSTRACTAUTO:
+ result = set_field(result, DMI_ABSTRACTAUTO_AUTOEXECPROGBUF, abstractauto.autoexecprogbuf);
+ result = set_field(result, DMI_ABSTRACTAUTO_AUTOEXECDATA, abstractauto.autoexecdata);
break;
case DMI_COMMAND:
result = 0;
write32(debug_rom_code, 1, ebreak());
}
- if (get_field(command, AC_ACCESS_REGISTER_PREEXEC)) {
- write32(debug_rom_entry, dmcontrol.hartsel,
- jal(ZERO, DEBUG_RAM_START - (DEBUG_ROM_ENTRY + 4 * dmcontrol.hartsel)));
- next_action =
- jal(ZERO, DEBUG_ROM_CODE - (DEBUG_ROM_ENTRY + 4 * dmcontrol.hartsel));
- } else {
- write32(debug_rom_entry, dmcontrol.hartsel,
- jal(ZERO, DEBUG_ROM_CODE - (DEBUG_ROM_ENTRY + 4 * dmcontrol.hartsel)));
- }
-
+ //TODO: Consider 'transfer' bit.
+ write32(debug_rom_entry, dmcontrol.hartsel,
+ jal(ZERO, DEBUG_ROM_CODE - (DEBUG_ROM_ENTRY + 4 * dmcontrol.hartsel)));
+
write32(debug_rom_exception, dmcontrol.hartsel,
jal(ZERO, (DEBUG_ROM_ENTRY + 4 * dmcontrol.hartsel) - DEBUG_ROM_EXCEPTION));
abstractcs.busy = true;
unsigned i = address - DMI_DATA0;
dmdata.write32(4 * i, value);
- bool autoexec = false;
- switch (i) {
- case 0: autoexec = abstractcs.autoexec0; break;
- case 1: autoexec = abstractcs.autoexec1; break;
- case 2: autoexec = abstractcs.autoexec2; break;
- case 3: autoexec = abstractcs.autoexec3; break;
- case 4: autoexec = abstractcs.autoexec4; break;
- case 5: autoexec = abstractcs.autoexec5; break;
- case 6: autoexec = abstractcs.autoexec6; break;
- case 7: autoexec = abstractcs.autoexec7; break;
+ if (abstractcs.busy && abstractcs.cmderr == abstractcs.CMDERR_NONE) {
+ abstractcs.cmderr = abstractcs.CMDERR_BUSY;
}
- if (autoexec) {
+
+ if ((abstractauto.autoexecdata >> i) & 1)
perform_abstract_command();
- }
return true;
- } else if (address >= DMI_IBUF0 && address < DMI_IBUF0 + progsize) {
- write32(program_buffer, address - DMI_IBUF0, value);
+ } else if (address >= DMI_PROGBUF0 && address < DMI_PROGBUF0 + progsize) {
+ write32(program_buffer, address - DMI_PROGBUF0, value);
return true;
} else {
switch (address) {
if (dmcontrol.dmactive) {
dmcontrol.haltreq = get_field(value, DMI_DMCONTROL_HALTREQ);
dmcontrol.resumereq = get_field(value, DMI_DMCONTROL_RESUMEREQ);
- dmcontrol.reset = get_field(value, DMI_DMCONTROL_RESET);
+ dmcontrol.ndmreset = get_field(value, DMI_DMCONTROL_NDMRESET);
dmcontrol.hartsel = get_field(value, DMI_DMCONTROL_HARTSEL);
} else {
reset();
return perform_abstract_command();
case DMI_ABSTRACTCS:
- abstractcs.autoexec7 = get_field(value, DMI_ABSTRACTCS_AUTOEXEC7);
- abstractcs.autoexec6 = get_field(value, DMI_ABSTRACTCS_AUTOEXEC6);
- abstractcs.autoexec5 = get_field(value, DMI_ABSTRACTCS_AUTOEXEC5);
- abstractcs.autoexec4 = get_field(value, DMI_ABSTRACTCS_AUTOEXEC4);
- abstractcs.autoexec3 = get_field(value, DMI_ABSTRACTCS_AUTOEXEC3);
- abstractcs.autoexec2 = get_field(value, DMI_ABSTRACTCS_AUTOEXEC2);
- abstractcs.autoexec1 = get_field(value, DMI_ABSTRACTCS_AUTOEXEC1);
- abstractcs.autoexec0 = get_field(value, DMI_ABSTRACTCS_AUTOEXEC0);
if (get_field(value, DMI_ABSTRACTCS_CMDERR) == abstractcs.CMDERR_NONE) {
abstractcs.cmderr = abstractcs.CMDERR_NONE;
}
return true;
+
+ case DMI_ABSTRACTAUTO:
+ abstractauto.autoexecprogbuf = get_field(value, DMI_ABSTRACTAUTO_AUTOEXECPROGBUF);
+ abstractauto.autoexecdata = get_field(value, DMI_ABSTRACTAUTO_AUTOEXECDATA);
+ break;
}
}
return false;