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Only activate ICH speedstep if we're going to use it. No bugs were observed

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due to this but it's cleaner this way.
This commit is contained in:
Nate Lawson 2005-03-20 01:25:21 +00:00
parent 2b2714935b
commit 823d404a6d
1 changed files with 9 additions and 9 deletions
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18
sys/dev/cpufreq/ichss.c
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@ -150,7 +150,6 @@ ichss_pci_probe(device_t dev)
{
device_t child, parent;
uint32_t pmbase;
uint16_t ss_en;
/*
* TODO: add a quirk to disable if we see the 82815_MC along
@ -198,14 +197,6 @@ ichss_pci_probe(device_t dev)
bus_set_resource(child, SYS_RES_IOPORT, 1, pmbase + ICHSS_CTRL_OFFSET,
1);
/* Activate SpeedStep control if not already enabled. */
ss_en = pci_read_config(dev, ICHSS_PMCFG_OFFSET, sizeof(ss_en));
if ((ss_en & ICHSS_ENABLE) == 0) {
printf("ichss: enabling SpeedStep support\n");
pci_write_config(dev, ICHSS_PMCFG_OFFSET,
ss_en | ICHSS_ENABLE, sizeof(ss_en));
}
/* Attach the new CPU child now. */
device_probe_and_attach(child);
@ -217,6 +208,7 @@ ichss_probe(device_t dev)
{
device_t est_dev, perf_dev;
int error, type;
uint16_t ss_en;
if (resource_disabled("ichss", 0))
return (ENXIO);
@ -236,6 +228,14 @@ ichss_probe(device_t dev)
if (est_dev && device_is_attached(est_dev))
return (ENXIO);
/* Activate SpeedStep control if not already enabled. */
ss_en = pci_read_config(dev, ICHSS_PMCFG_OFFSET, sizeof(ss_en));
if ((ss_en & ICHSS_ENABLE) == 0) {
printf("ichss: enabling SpeedStep support\n");
pci_write_config(dev, ICHSS_PMCFG_OFFSET,
ss_en | ICHSS_ENABLE, sizeof(ss_en));
}
device_set_desc(dev, "SpeedStep ICH");
return (-1000);
}