Subject: ACPI : Init PDC before getting throttling info >From : Zhao Yakui <yakui.zhao@xxxxxxxxx> 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 <yakui.zhao@xxxxxxxxx> Signed-off-by: Li Shaohua <shaohua.li@xxxxxxxxx> --- 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); - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
