35 lines
1.4 KiB
Plaintext
35 lines
1.4 KiB
Plaintext
|
What: /sys/devices/uncore_iio_x/dieX
|
||
|
|
Date: February 2020
|
||
|
|
Contact: Roman Sudarikov <roman.sudarikov@linux.intel.com>
|
||
|
|
Description:
|
||
|
|
Each IIO stack (PCIe root port) has its own IIO PMON block, so
|
||
|
|
each dieX file (where X is die number) holds "Segment:Root Bus"
|
||
|
|
for PCIe root port, which can be monitored by that IIO PMON
|
||
|
|
block.
|
||
|
|
For example, on 4-die Xeon platform with up to 6 IIO stacks per
|
||
|
|
die and, therefore, 6 IIO PMON blocks per die, the mapping of
|
||
|
|
IIO PMON block 0 exposes as the following::
|
||
|
|
|
||
|
|
$ ls /sys/devices/uncore_iio_0/die*
|
||
|
|
-r--r--r-- /sys/devices/uncore_iio_0/die0
|
||
|
|
-r--r--r-- /sys/devices/uncore_iio_0/die1
|
||
|
|
-r--r--r-- /sys/devices/uncore_iio_0/die2
|
||
|
|
-r--r--r-- /sys/devices/uncore_iio_0/die3
|
||
|
|
|
||
|
|
$ tail /sys/devices/uncore_iio_0/die*
|
||
|
|
==> /sys/devices/uncore_iio_0/die0 <==
|
||
|
|
0000:00
|
||
|
|
==> /sys/devices/uncore_iio_0/die1 <==
|
||
|
|
0000:40
|
||
|
|
==> /sys/devices/uncore_iio_0/die2 <==
|
||
|
|
0000:80
|
||
|
|
==> /sys/devices/uncore_iio_0/die3 <==
|
||
|
|
0000:c0
|
||
|
|
|
||
|
|
Which means::
|
||
|
|
|
||
|
|
IIO PMU 0 on die 0 belongs to PCI RP on bus 0x00, domain 0x0000
|
||
|
|
IIO PMU 0 on die 1 belongs to PCI RP on bus 0x40, domain 0x0000
|
||
|
|
IIO PMU 0 on die 2 belongs to PCI RP on bus 0x80, domain 0x0000
|
||
|
|
IIO PMU 0 on die 3 belongs to PCI RP on bus 0xc0, domain 0x0000
|