UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

[CPUFREQ] Powernow-k8: Enable more than 2 low P-states 

Remove an obsolete check that used to prevent there being more
than 2 low P-states.  Now that low-to-low P-states changes are
enabled, it prevents otherwise workable configurations with
multiple low P-states.

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Tested-by: Krists Krilovs <pow@pow.za.net>
Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Mark Langsdorf 2009-08-21 19:15:28 -05:00 committed by Dave Jones
parent 395913d0b1
commit db39d5529d
1 changed files with 4 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
arch/x86/kernel/cpu/cpufreq/powernow-k8.c
View File

@ -854,6 +854,10 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
goto err_out;
}
/* fill in data */
data->numps = data->acpi_data.state_count;
powernow_k8_acpi_pst_values(data, 0);
if (cpu_family == CPU_HW_PSTATE)
ret_val = fill_powernow_table_pstate(data, powernow_table);
else
@ -866,11 +870,8 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
powernow_table[data->acpi_data.state_count].index = 0;
data->powernow_table = powernow_table;
/* fill in data */
data->numps = data->acpi_data.state_count;
if (cpumask_first(cpu_core_mask(data->cpu)) == data->cpu)
print_basics(data);
powernow_k8_acpi_pst_values(data, 0);
/* notify BIOS that we exist */
acpi_processor_notify_smm(THIS_MODULE);
@ -941,7 +942,6 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
struct cpufreq_frequency_table *powernow_table)
{
int i;
int cntlofreq = 0;
for (i = 0; i < data->acpi_data.state_count; i++) {
u32 fid;
@ -982,27 +982,6 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
continue;
}
/* verify only 1 entry from the lo frequency table */
if (fid < HI_FID_TABLE_BOTTOM) {
if (cntlofreq) {
/* if both entries are the same,
* ignore this one ... */
if ((freq != powernow_table[cntlofreq].frequency) ||
(index != powernow_table[cntlofreq].index)) {
printk(KERN_ERR PFX
"Too many lo freq table "
"entries\n");
return 1;
}
dprintk("double low frequency table entry, "
"ignoring it.\n");
invalidate_entry(data, i);
continue;
} else
cntlofreq = i;
}
if (freq != (data->acpi_data.states[i].core_frequency * 1000)) {
printk(KERN_INFO PFX "invalid freq entries "
"%u kHz vs. %u kHz\n", freq,