Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 335f16be authored by David Shaohua Li's avatar David Shaohua Li Committed by Len Brown
Browse files

[ACPI] address boot-freeze with updated DMI blacklist for c-states 

http://bugzilla.kernel.org/show_bug.cgi?id=4763



Signed-off-by: default avatarDavid Shaohua Li <shaohua.li@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 0b6b2f08

drivers/acpi/processor_idle.c

+12 −9
Original line number Diff line number Diff line
@@ -81,30 +81,33 @@ module_param(bm_history, uint, 0644); 
 *

 * To skip this limit, boot/load with a large max_cstate limit.

 */

static int no_c2c3(struct dmi_system_id *id)

static int set_max_cstate(struct dmi_system_id *id)

{

	if (max_cstate > ACPI_PROCESSOR_MAX_POWER)

		return 0;



	printk(KERN_NOTICE PREFIX "%s detected - C2,C3 disabled."

	printk(KERN_NOTICE PREFIX "%s detected - %s disabled."

		" Override with \"processor.max_cstate=%d\"\n", id->ident,

		((int)id->driver_data == 1)? "C2,C3":"C3",

	       ACPI_PROCESSOR_MAX_POWER + 1);



	max_cstate = 1;

	max_cstate = (int)id->driver_data;



	return 0;

}









static struct dmi_system_id __initdata processor_power_dmi_table[] = {

	{ no_c2c3, "IBM ThinkPad R40e", {

	{ set_max_cstate, "IBM ThinkPad R40e", {

	  DMI_MATCH(DMI_BIOS_VENDOR,"IBM"),

	  DMI_MATCH(DMI_BIOS_VERSION,"1SET60WW") }},

	{ no_c2c3, "Medion 41700", {

	  DMI_MATCH(DMI_BIOS_VERSION,"1SET60WW") }, (void*)1},

	{ set_max_cstate, "Medion 41700", {

	  DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),

	  DMI_MATCH(DMI_BIOS_VERSION,"R01-A1J") }, (void*)1},

	{ set_max_cstate, "Clevo 5600D", {

	  DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),

	  DMI_MATCH(DMI_BIOS_VERSION,"R01-A1J") }},

	  DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307") },

	  (void*)2},

	{},

};