Subject: ACPI : Init PDC before getting throttling info
>From : Zhao Yakui <[EMAIL PROTECTED]>
The throttling info should be obtained after PDC is initialized.
Otherwise the cpus maybe use the different PTC control/status register
when the system supports the TSS throttling via ACPI MSR.
One uses the System I/O mode and the other uses the Fixed HW access mode.
Signed-off-by: Zhao Yakui <[EMAIL PROTECTED]>
Signed-off-by: Li Shaohua <[EMAIL PROTECTED]>
---
drivers/acpi/processor_core.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
Index: linux-2.6.24-rc1/drivers/acpi/processor_core.c
===================================================================
--- linux-2.6.24-rc1.orig/drivers/acpi/processor_core.c
+++ linux-2.6.24-rc1/drivers/acpi/processor_core.c
@@ -612,12 +612,6 @@ static int acpi_processor_get_info(struc
request_region(pr->throttling.address, 6, "ACPI CPU throttle");
}
-#ifdef CONFIG_CPU_FREQ
- acpi_processor_ppc_has_changed(pr);
-#endif
- acpi_processor_get_throttling_info(pr);
- acpi_processor_get_limit_info(pr);
-
return 0;
}
@@ -665,6 +659,12 @@ static int __cpuinit acpi_processor_star
/* _PDC call should be done before doing anything else (if reqd.). */
arch_acpi_processor_init_pdc(pr);
acpi_processor_set_pdc(pr);
+#ifdef CONFIG_CPU_FREQ
+ acpi_processor_ppc_has_changed(pr);
+#endif
+ acpi_processor_get_throttling_info(pr);
+ acpi_processor_get_limit_info(pr);
+
acpi_processor_power_init(pr, device);
-
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