Re: #yocto -kernel startup of devices/platform/amba/ffa00000.perf-monitor #yocto

Monsees, Steven C (US)

Nevermind I found it, long day…


From: yocto@... <yocto@...> On Behalf Of Monsees, Steven C (US) via
Sent: Wednesday, July 28, 2021 1:57 PM
To: yocto@...
Subject: [yocto] #yocto -kernel startup of devices/platform/amba/ffa00000.perf-monitor


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I am running with zeus…, during kernel startup I see perf-monitors setup


[    3.564635] xilinx-axipmon ffa00000.perf-monitor: Probed Xilinx APM

[    3.571139] xilinx-axipmon fd0b0000.perf-monitor: Probed Xilinx APM

[    3.577571] xilinx-axipmon fd490000.perf-monitor: Probed Xilinx APM

[    3.583987] xilinx-axipmon ffa10000.perf-monitor: Probed Xilinx APM


Are these are tied to uio0 thru uio3 ?

Can someone tell me what recipe initializes and brings these in ?

Is it possible to delay their initialization/startup ?

(I would like to have them come into play after I setup the uio_fpga interrupt…)


root@cvpx-default ls -la /sys/class/uio

total 0

drwxr-xr-x  2 root root 0 Jan  1  1970 .

drwxr-xr-x 49 root root 0 Jan  1  1970 ..

lrwxrwxrwx  1 root root 0 Jan  1  1970 uio0 -> ../../devices/platform/amba/ffa00000.perf-monitor/uio/uio0

lrwxrwxrwx  1 root root 0 Jan  1  1970 uio1 -> ../../devices/platform/amba/fd0b0000.perf-monitor/uio/uio1

lrwxrwxrwx  1 root root 0 Jan  1  1970 uio2 -> ../../devices/platform/amba/fd490000.perf-monitor/uio/uio2

lrwxrwxrwx  1 root root 0 Jan  1  1970 uio3 -> ../../devices/platform/amba/ffa10000.perf-monitor/uio/uio3

lrwxrwxrwx  1 root root 0 Jul 28 17:36 uio4 -> ../../devices/uio_fpga/uio/uio4





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