Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) What:           /sys/devices/uncore_iio_x/dieX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) Date:           February 2020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) Contact:        Roman Sudarikov <roman.sudarikov@linux.intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)                 Each IIO stack (PCIe root port) has its own IIO PMON block, so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)                 each dieX file (where X is die number) holds "Segment:Root Bus"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)                 for PCIe root port, which can be monitored by that IIO PMON
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)                 block.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)                 For example, on 4-die Xeon platform with up to 6 IIO stacks per
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)                 die and, therefore, 6 IIO PMON blocks per die, the mapping of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)                 IIO PMON block 0 exposes as the following::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		    $ ls /sys/devices/uncore_iio_0/die*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 		    -r--r--r-- /sys/devices/uncore_iio_0/die0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		    -r--r--r-- /sys/devices/uncore_iio_0/die1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		    -r--r--r-- /sys/devices/uncore_iio_0/die2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 		    -r--r--r-- /sys/devices/uncore_iio_0/die3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 		    $ tail /sys/devices/uncore_iio_0/die*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		    ==> /sys/devices/uncore_iio_0/die0 <==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		    0000:00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		    ==> /sys/devices/uncore_iio_0/die1 <==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		    0000:40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		    ==> /sys/devices/uncore_iio_0/die2 <==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		    0000:80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		    ==> /sys/devices/uncore_iio_0/die3 <==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		    0000:c0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)                 Which means::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		    IIO PMU 0 on die 0 belongs to PCI RP on bus 0x00, domain 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		    IIO PMU 0 on die 1 belongs to PCI RP on bus 0x40, domain 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		    IIO PMU 0 on die 2 belongs to PCI RP on bus 0x80, domain 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		    IIO PMU 0 on die 3 belongs to PCI RP on bus 0xc0, domain 0x0000