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SubjectRe: [PATCH v2 1/3] ACPI / idle: Make idle_boot_override depend on x86 and ia64
From
2014-02-08 Hanjun Guo <hanjun.guo@linaro.org>:
> idle_boot_override depends on x86 and ia64 now, and we can not
> foresee it will be used on ARM or ARM64,so move the code into
> CONFIG_X86 and CONFIG_IA64 #ifdefs to make processor_core.c
> can be compiled on ARM64.
>

Reviewed-by: Lan Tianyu <tianyu.lan@intel.com>

> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> ---
> drivers/acpi/processor_core.c | 40 ++++++++++++++++++++++------------------
> 1 file changed, 22 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
> index 46583d7..01b2656 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 +361,35 @@ early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
> return AE_OK;
> }
>
> +#if defined(CONFIG_X86) || defined(CONFIG_IA64)
> +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},
> + {},
> +};
> +#endif
> +
> void __init acpi_early_processor_set_pdc(void)
> {
> +#if defined(CONFIG_X86) || defined(CONFIG_IA64)
> /*
> * Check whether the system is DMI table. If yes, OSPM
> * should not use mwait for CPU-states.
> */
> dmi_check_system(processor_idle_dmi_table);
> +#endif
>
> acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
> ACPI_UINT32_MAX,
> --
> 1.7.9.5
>
> --
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--
Best regards
Tianyu Lan


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