diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/processor_core.c | 47 |
1 files changed, 28 insertions, 19 deletions
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 7c50a4c6c657..4d91b32423a9 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -19,24 +19,6 @@ #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("processor_core"); -static int __init set_no_mwait(const struct dmi_system_id *id) -{ - printk(KERN_NOTICE PREFIX "%s detected - " - "disabling mwait for CPU C-states\n", id->ident); - boot_option_idle_override = IDLE_NOMWAIT; - return 0; -} - -static struct dmi_system_id processor_idle_dmi_table[] __initdata = { - { - set_no_mwait, "Extensa 5220", { - DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"), - DMI_MATCH(DMI_SYS_VENDOR, "Acer"), - DMI_MATCH(DMI_PRODUCT_VERSION, "0100"), - DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL}, - {}, -}; - static int map_lapic_id(struct acpi_subtable_header *entry, u32 acpi_id, int *apic_id) { @@ -379,13 +361,40 @@ early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv) return AE_OK; } -void __init acpi_early_processor_set_pdc(void) +#if defined(CONFIG_X86) || defined(CONFIG_IA64) +static int __init set_no_mwait(const struct dmi_system_id *id) +{ + pr_notice(PREFIX "%s detected - disabling mwait for CPU C-states\n", + id->ident); + boot_option_idle_override = IDLE_NOMWAIT; + return 0; +} + +static struct dmi_system_id processor_idle_dmi_table[] __initdata = { + { + set_no_mwait, "Extensa 5220", { + DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"), + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_VERSION, "0100"), + DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL}, + {}, +}; + +static void __init processor_dmi_check(void) { /* * Check whether the system is DMI table. If yes, OSPM * should not use mwait for CPU-states. */ dmi_check_system(processor_idle_dmi_table); +} +#else +static inline void processor_dmi_check(void) {} +#endif + +void __init acpi_early_processor_set_pdc(void) +{ + processor_dmi_check(); acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, |