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authorLen Brown <len.brown@intel.com>2005-07-29 23:31:17 -0400
committerLen Brown <len.brown@intel.com>2005-07-29 23:31:17 -0400
commitd6ac1a7910d22626bc77e73db091e00b810715f4 (patch)
treec8f235b7287056a03bc2bc032902469a331b5e56 /drivers/acpi/processor_idle.c
parent577a4f8102d54b504cb22eb021b89e957e8df18f (diff)
parent87bec66b9691522414862dd8d41e430b063735ef (diff)
downloadblackbird-op-linux-d6ac1a7910d22626bc77e73db091e00b810715f4.tar.gz
blackbird-op-linux-d6ac1a7910d22626bc77e73db091e00b810715f4.zip
/home/lenb/src/to-linus branch 'acpi-2.6.12'
Diffstat (limited to 'drivers/acpi/processor_idle.c')
-rw-r--r--drivers/acpi/processor_idle.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 893b074e3d1a..af271d994f15 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -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},
{},
};
@@ -549,7 +552,8 @@ static int acpi_processor_get_power_info_default_c1 (struct acpi_processor *pr)
ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_default_c1");
for (i = 0; i < ACPI_PROCESSOR_MAX_POWER; i++)
- memset(pr->power.states, 0, sizeof(struct acpi_processor_cx));
+ memset(&(pr->power.states[i]), 0,
+ sizeof(struct acpi_processor_cx));
/* if info is obtained from pblk/fadt, type equals state */
pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;
@@ -580,7 +584,8 @@ static int acpi_processor_get_power_info_cst (struct acpi_processor *pr)
pr->power.count = 0;
for (i = 0; i < ACPI_PROCESSOR_MAX_POWER; i++)
- memset(pr->power.states, 0, sizeof(struct acpi_processor_cx));
+ memset(&(pr->power.states[i]), 0,
+ sizeof(struct acpi_processor_cx));
status = acpi_evaluate_object(pr->handle, "_CST", NULL, &buffer);
if (ACPI_FAILURE(status)) {
@@ -763,7 +768,6 @@ static void acpi_processor_power_verify_c3(
}
if (pr->flags.bm_check) {
- printk("Disabling BM access before entering C3\n");
/* bus mastering control is necessary */
if (!pr->flags.bm_control) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -771,7 +775,6 @@ static void acpi_processor_power_verify_c3(
return_VOID;
}
} else {
- printk("Invalidating cache before entering C3\n");
/*
* WBINVD should be set in fadt, for C3 state to be
* supported on when bm_check is not required.
@@ -842,7 +845,7 @@ static int acpi_processor_get_power_info (
result = acpi_processor_get_power_info_cst(pr);
if ((result) || (acpi_processor_power_verify(pr) < 2)) {
result = acpi_processor_get_power_info_fadt(pr);
- if (result)
+ if ((result) || (acpi_processor_power_verify(pr) < 2))
result = acpi_processor_get_power_info_default_c1(pr);
}
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