Hi Rusty,
Today's linux-next merge of the rr tree got a conflict in
arch/x86/kernel/cpu/cpufreq/powernow-k8.c between various commits from
the cpufreq-current and cpufreq trees and commit
35bed9c465bcf6e9e797cba9c54bab263e07be31
("cpumask:partial-revert-powernow-k8") from the rr tree.
I fixed it up (see below) and can carry the fix as necessary.
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
http://www.canb.auug.org.au/~sfr/
diff --cc arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 83515f16,8b99478..0000000
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@@ -1242,38 -1148,34 +1241,42 @@@ static int __cpuinit powernowk8_cpu_ini
* an UP version, and is deprecated by AMD.
*/
if (num_online_cpus() != 1) {
-#ifndef CONFIG_ACPI_PROCESSOR
- printk(KERN_ERR PFX "ACPI Processor support is required "
- "for SMP systems but is absent. Please load the "
- "ACPI Processor module before starting this "
- "driver.\n");
-#else
- printk(KERN_ERR FW_BUG PFX "Your BIOS does not provide"
- " ACPI _PSS objects in a way that Linux "
- "understands. Please report this to the Linux "
- "ACPI maintainers and complain to your BIOS "
- "vendor.\n");
-#endif
+ /*
+ * Replace this one with print_once as soon as such a
+ * thing gets introduced
+ */
+ if (!print_once) {
+ WARN_ONCE(1, KERN_ERR FW_BUG PFX "Your BIOS "
+ "does not provide ACPI _PSS objects "
+ "in a way that Linux understands. "
+ "Please report this to the Linux ACPI"
+ " maintainers and complain to your "
+ "BIOS vendor.\n");
+ print_once++;
+ }
- goto err_out;
+ kfree(data);
+ return -ENODEV;
}
if (pol->cpu != 0) {
printk(KERN_ERR FW_BUG PFX "No ACPI _PSS objects for "
"CPU other than CPU0. Complain to your BIOS "
"vendor.\n");
- goto err_out;
+ kfree(data);
+ return -ENODEV;
}
rc = find_psb_table(data);
- if (rc)
- goto err_out;
+ if (rc) {
+ kfree(data);
+ return -ENODEV;
+ }
- }
+
+ /* Take a crude guess here.
+ * That guess was in microseconds, so multiply with 1000 */
+ pol->cpuinfo.transition_latency = (
+ ((data->rvo + 8) * data->vstable * VST_UNITS_20US) +
+ ((1 << data->irt) * 30)) * 1000;
+ } else /* ACPI _PSS objects available */
+ pol->cpuinfo.transition_latency = get_transition_latency(data);
/* only run on specific CPU from here on */
oldmask = current->cpus_allowed;
--
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