diff options
| author | Len Brown <len.brown@intel.com> | 2006-06-29 15:57:42 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2006-06-29 15:57:42 -0400 |
| commit | a51a69c0ed955f4fa6f64b4377378c744f9b737b (patch) | |
| tree | c463970340e363a6bd362b41f87228c7c06f33e4 /drivers/acpi | |
| parent | 49fee981fa98f3c0a21f3d6c8193eddcc15e84e9 (diff) | |
| parent | f831335d42a9aed26449a264266763fb542dbbe3 (diff) | |
Pull trivial into release branch
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/processor_idle.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 89d3fd4c3cd..2278b21b5eb 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -99,6 +99,9 @@ static int set_max_cstate(struct dmi_system_id *id) static struct dmi_system_id __cpuinitdata processor_power_dmi_table[] = { { set_max_cstate, "IBM ThinkPad R40e", { DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), + DMI_MATCH(DMI_BIOS_VERSION,"1SET70WW")}, (void *)1}, + { set_max_cstate, "IBM ThinkPad R40e", { + DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), DMI_MATCH(DMI_BIOS_VERSION,"1SET60WW")}, (void *)1}, { set_max_cstate, "IBM ThinkPad R40e", { DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), @@ -365,7 +368,9 @@ static void acpi_processor_idle(void) t1 = inl(acpi_fadt.xpm_tmr_blk.address); /* Invoke C2 */ inb(cx->address); - /* Dummy op - must do something useless after P_LVL2 read */ + /* Dummy wait op - must do something useless after P_LVL2 read + because chipsets cannot guarantee that STPCLK# signal + gets asserted in time to freeze execution properly. */ t2 = inl(acpi_fadt.xpm_tmr_blk.address); /* Get end time (ticks) */ t2 = inl(acpi_fadt.xpm_tmr_blk.address); @@ -403,7 +408,7 @@ static void acpi_processor_idle(void) t1 = inl(acpi_fadt.xpm_tmr_blk.address); /* Invoke C3 */ inb(cx->address); - /* Dummy op - must do something useless after P_LVL3 read */ + /* Dummy wait op (see above) */ t2 = inl(acpi_fadt.xpm_tmr_blk.address); /* Get end time (ticks) */ t2 = inl(acpi_fadt.xpm_tmr_blk.address); |