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Commit 3b1da4c5 authored by Alex Chiang's avatar Alex Chiang Committed by Len Brown
Browse files

ACPI: processor: remove early _PDC optin quirks 



Now that we check for physically present processors before blindly
evaluating _PDC, we no longer need to maintain a DMI opt-in table
nor a kernel param.

Acked-by: default avatarVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: default avatarAlex Chiang <achiang@hp.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 5d554a7b

Documentation/kernel-parameters.txt

+0 −4
Original line number Diff line number Diff line
@@ -200,10 +200,6 @@ and is between 256 and 4096 characters. It is defined in the file 
			acpi_display_output=video

			See above.



	acpi_early_pdc_eval	[HW,ACPI] Evaluate processor _PDC methods

				early. Needed on some platforms to properly

				initialize the EC.



	acpi_irq_balance [HW,ACPI]

			ACPI will balance active IRQs

			default in APIC mode

drivers/acpi/processor_core.c

+0 −37
Original line number Diff line number Diff line
@@ -341,36 +341,6 @@ void acpi_processor_set_pdc(acpi_handle handle) 
}

EXPORT_SYMBOL_GPL(acpi_processor_set_pdc);



static int early_pdc_optin;

static int set_early_pdc_optin(const struct dmi_system_id *id)

{

	early_pdc_optin = 1;

	return 0;

}



static int param_early_pdc_optin(char *s)

{

	early_pdc_optin = 1;

	return 1;

}

__setup("acpi_early_pdc_eval", param_early_pdc_optin);



static struct dmi_system_id __cpuinitdata early_pdc_optin_table[] = {

	{

	set_early_pdc_optin, "HP Envy", {

	DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),

	DMI_MATCH(DMI_PRODUCT_NAME, "HP Envy") }, NULL},

	{

	set_early_pdc_optin, "HP Pavilion dv6", {

	DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),

	DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6") }, NULL},

	{

	set_early_pdc_optin, "HP Pavilion dv7", {

	DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),

	DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv7") }, NULL},

	{},

};



static acpi_status

early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)

{
@@ -396,13 +366,6 @@ void __init acpi_early_processor_set_pdc(void) 
	 */

	dmi_check_system(processor_idle_dmi_table);



	/*

	 * Allow systems to opt-in to early _PDC evaluation.

	 */

	dmi_check_system(early_pdc_optin_table);

	if (!early_pdc_optin)

		return;



	acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,

			    ACPI_UINT32_MAX,

			    early_init_pdc, NULL, NULL, NULL);