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o Extend boot output: print out mimimum/maximum performance value and number

Browse source 
of performance steps available;

o similarly to Enhanced SpeedStep driver, export list of all available steps
  via hw.p4tcc.cpuperf_levels sysctl.
This commit is contained in:
Maxim Sobolev 2004-08-23 09:47:56 +00:00
parent b3530b8e7f
commit acac9ce485
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=134199
2 changed files with 38 additions and 2 deletions
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20
sys/i386/cpufreq/p4tcc.c
View file

@ -191,11 +191,15 @@ p4tcc_profile_sysctl(SYSCTL_HANDLER_ARGS)
static void
setup_p4tcc(void *dummy __unused)
{
int nsteps, i;
static char p4tcc_levels[(3 * TCC_LEVELS) + 1];
char buf[4 + 1];
if ((cpu_feature & (CPUID_ACPI | CPUID_TM)) !=
(CPUID_ACPI | CPUID_TM))
return;
nsteps = TCC_LEVELS;
switch (cpu_id & 0xf) {
case 0x22: /* errata O50 P44 and Z21 */
case 0x24:
@ -204,6 +208,7 @@ setup_p4tcc(void *dummy __unused)
case 0x29:
/* hang with 12.5 */
tcc[TCC_LEVELS - 1] = tcc[TCC_LEVELS - 2];
nsteps -= 1;
break;
case 0x07: /* errata N44 and P18 */
case 0x0a:
@ -211,16 +216,24 @@ setup_p4tcc(void *dummy __unused)
case 0x13:
/* hang at 12.5 and 25 */
tcc[TCC_LEVELS - 1] = tcc[TCC_LEVELS - 2] = tcc[TCC_LEVELS - 3];
nsteps -= 2;
break;
default:
break;
}
p4tcc_levels[0] = '\0';
for (i = nsteps; i > 0; i--) {
sprintf(buf, "%d%s", tcc[i - 1].rlevel, (i != 1) ? " " : "");
strcat(p4tcc_levels, buf);
}
p4tcc_economy = tcc[TCC_LEVELS - 1].rlevel;
p4tcc_performance = tcc[0].rlevel;
p4tcc_percentage = p4tcc_getperf();
printf("Pentium 4 TCC support enabled, current performance %u%%\n",
printf("Pentium 4 TCC support enabled, %d steps from 100%% to %d%%, "
"current performance %u%%\n", nsteps, p4tcc_economy,
p4tcc_percentage);
sysctl_ctx_init(&p4tcc_sysctl_ctx);
@ -242,6 +255,11 @@ setup_p4tcc(void *dummy __unused)
"cpuperf_economy", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_RW,
&p4tcc_economy, 0, p4tcc_profile_sysctl, "I",
"CPU performance in % of maximum in Economy mode");
SYSCTL_ADD_STRING(&p4tcc_sysctl_ctx,
SYSCTL_CHILDREN(p4tcc_sysctl_tree), OID_AUTO,
"cpuperf_levels", CTLFLAG_RD, p4tcc_levels, 0,
"Perormance levels supported by the Pentium 4 Thermal Control "
"Circuitry");
/* register performance profile change handler */
EVENTHANDLER_REGISTER(power_profile_change, p4tcc_power_profile, NULL, 0);

20
sys/i386/i386/p4tcc.c
View file

@ -191,11 +191,15 @@ p4tcc_profile_sysctl(SYSCTL_HANDLER_ARGS)
static void
setup_p4tcc(void *dummy __unused)
{
int nsteps, i;
static char p4tcc_levels[(3 * TCC_LEVELS) + 1];
char buf[4 + 1];
if ((cpu_feature & (CPUID_ACPI | CPUID_TM)) !=
(CPUID_ACPI | CPUID_TM))
return;
nsteps = TCC_LEVELS;
switch (cpu_id & 0xf) {
case 0x22: /* errata O50 P44 and Z21 */
case 0x24:
@ -204,6 +208,7 @@ setup_p4tcc(void *dummy __unused)
case 0x29:
/* hang with 12.5 */
tcc[TCC_LEVELS - 1] = tcc[TCC_LEVELS - 2];
nsteps -= 1;
break;
case 0x07: /* errata N44 and P18 */
case 0x0a:
@ -211,16 +216,24 @@ setup_p4tcc(void *dummy __unused)
case 0x13:
/* hang at 12.5 and 25 */
tcc[TCC_LEVELS - 1] = tcc[TCC_LEVELS - 2] = tcc[TCC_LEVELS - 3];
nsteps -= 2;
break;
default:
break;
}
p4tcc_levels[0] = '\0';
for (i = nsteps; i > 0; i--) {
sprintf(buf, "%d%s", tcc[i - 1].rlevel, (i != 1) ? " " : "");
strcat(p4tcc_levels, buf);
}
p4tcc_economy = tcc[TCC_LEVELS - 1].rlevel;
p4tcc_performance = tcc[0].rlevel;
p4tcc_percentage = p4tcc_getperf();
printf("Pentium 4 TCC support enabled, current performance %u%%\n",
printf("Pentium 4 TCC support enabled, %d steps from 100%% to %d%%, "
"current performance %u%%\n", nsteps, p4tcc_economy,
p4tcc_percentage);
sysctl_ctx_init(&p4tcc_sysctl_ctx);
@ -242,6 +255,11 @@ setup_p4tcc(void *dummy __unused)
"cpuperf_economy", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_RW,
&p4tcc_economy, 0, p4tcc_profile_sysctl, "I",
"CPU performance in % of maximum in Economy mode");
SYSCTL_ADD_STRING(&p4tcc_sysctl_ctx,
SYSCTL_CHILDREN(p4tcc_sysctl_tree), OID_AUTO,
"cpuperf_levels", CTLFLAG_RD, p4tcc_levels, 0,
"Perormance levels supported by the Pentium 4 Thermal Control "
"Circuitry");
/* register performance profile change handler */
EVENTHANDLER_REGISTER(power_profile_change, p4tcc_power_profile, NULL, 0);