Messages in this thread | | | Subject | Re: fsb of older cpu | From | Len Brown <> | Date | 09 Mar 2004 23:17:53 -0500 |
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> root@kilobyte:/proc/acpi/processor/C097# cat power > active state: C2 > default state: C1 > bus master activity: 00000000 > states: > C1: promotion[C2] demotion[--] latency[000] usage[00000240] > *C2: promotion[--] demotion[C1] latency[100] usage[169083068] > C3: <not supported>
latency is in microseconds. 100 is the highest latency C2 can have w/o being disabled entirely. (eg. my laptop has C2 latency of 1, and C3 latency of 85) Though it is not uncommon for desktop chips to not support C2 at all...
> Do you know a little program to visualize the fadt flags in a human > readable way?
# cat /proc/acpi/fadt | ~lenb/bin/acpitbl where acpitbl is a script in pmtools:
http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/utils/
will print something like this, which depending on the human, is readable;-)
Signature: FACP Length: 132 Revision: 0x02 Checksum: 0x58 OEMID: TOSHIB OEM Table ID: 750 OEM Revision: 0x20030101 Creator ID: TASM Creator Revision: 0x04010000 FIRMWARE_CTRL: 0x000eee00 DSDT: 0x1ffd0114 INT_MODEL: 0x00 SCI_INT: 9 SMI_CMD: 0x000000b2 ACPI_ENABLE: 0x71 ACPI_DISABLE: 0x70 S4BIOS_REQ: 0x72 PM1a_EVT_BLK: 0x0000d800 PM1b_EVT_BLK: 0x00000000 PM1a_CNT_BLK: 0x0000d804 PM1b_CNT_BLK: 0x00000000 PM2_CNT_BLK: 0x0000d820 PM_TMR_BLK: 0x0000d808 GPE0_BLK: 0x0000d828 GPE1_BLK: 0x00000000 PM1_EVT_LEN: 4 PM1_CNT_LEN: 2 PM2_CNT_LEN: 1 PM_TM_LEN: 4 GPE0_BLK_LEN: 8 GPE1_BLK_LEN: 0 GPE1_BASE: 0 P_LVL2_LAT: 1 P_LVL3_LAT: 85 FLUSH_SIZE: 0 FLUSH_STRIDE: 0 DUTY_OFFSET: 1 DUTY_WIDTH: 0 DAY_ALRM: 0x0d MON_ALRM: 0x7e CENTURY: 0x00 Flags: 0x000004a5
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