/*
* Get the CPU type.
*/
cpu_type_t
cpu_type_get(void)
{
unsigned int eax, ebx, ecx, edx;
int family, model, ext_model;
cpu_type_t type = CPU_UNSUP;
char vendor[16];
eax = 0;
cpuid(&eax, &ebx, &ecx, &edx);
(void) strncpy(&vendor[0], (char *)(&ebx), 4);
(void) strncpy(&vendor[4], (char *)(&ecx), 4);
(void) strncpy(&vendor[8], (char *)(&edx), 4);
vendor[12] = 0;
if (strncmp(vendor, "Genu" "ntel" "ineI", 12) != 0) {
return (CPU_UNSUP);
}
eax = 1;
cpuid(&eax, &ebx, &ecx, &edx);
family = CPU_FAMILY(eax);
model = CPU_MODEL(eax);
ext_model = CPU_EXT_MODEL(eax);
if (family == 6) {
model = (ext_model << 4) + model;
switch (model) {
case 26:
type = CPU_NHM_EP;
break;
case 44:
type = CPU_WSM_EP;
break;
case 45:
type = CPU_SNB_EP;
break;
case 46:
type = CPU_NHM_EX;
break;
case 47:
type = CPU_WSM_EX;
break;
case 62:
type = CPU_IVB_EX;
break;
case 63:
type = CPU_HSX;
break;
case 79:
type = CPU_BDX;
break;
}
}
return (type);
}
static void
model_set (sim_cpu *cpu, const MODEL *model)
{
CPU_MACH (cpu) = MODEL_MACH (model);
CPU_MODEL (cpu) = model;
(* MACH_INIT_CPU (MODEL_MACH (model))) (cpu);
(* MODEL_INIT (model)) (cpu);
}
static SIM_RC
sim_model_init (SIM_DESC sd)
{
SIM_CPU *cpu;
/* If both cpu model and state architecture are set, ensure they're
compatible. If only one is set, set the other. If neither are set,
use the default model. STATE_ARCHITECTURE is the bfd_arch_info data
for the selected "mach" (bfd terminology). */
/* Only check cpu 0. STATE_ARCHITECTURE is for that one only. */
/* ??? At present this only supports homogeneous multiprocessors. */
cpu = STATE_CPU (sd, 0);
if (! STATE_ARCHITECTURE (sd)
&& ! CPU_MACH (cpu))
{
/* Set the default model. */
const MODEL *model = sim_model_lookup (WITH_DEFAULT_MODEL);
sim_model_set (sd, NULL, model);
}
if (STATE_ARCHITECTURE (sd)
&& CPU_MACH (cpu))
{
if (strcmp (STATE_ARCHITECTURE (sd)->printable_name,
MACH_BFD_NAME (CPU_MACH (cpu))) != 0)
{
sim_io_eprintf (sd, "invalid model `%s' for `%s'\n",
MODEL_NAME (CPU_MODEL (cpu)),
STATE_ARCHITECTURE (sd)->printable_name);
return SIM_RC_FAIL;
}
}
else if (STATE_ARCHITECTURE (sd))
{
/* Use the default model for the selected machine.
The default model is the first one in the list. */
const MACH *mach = sim_mach_lookup_bfd_name (STATE_ARCHITECTURE (sd)->printable_name);
if (mach == NULL)
{
sim_io_eprintf (sd, "unsupported machine `%s'\n",
STATE_ARCHITECTURE (sd)->printable_name);
return SIM_RC_FAIL;
}
sim_model_set (sd, NULL, MACH_MODELS (mach));
}
else
{
STATE_ARCHITECTURE (sd) = bfd_scan_arch (MACH_BFD_NAME (CPU_MACH (cpu)));
}
return SIM_RC_OK;
}
