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Property:fiq ipi

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Procfs-Object

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Details

fiq_ipi lists the Fast Interrupt (FIQ) Inter Processor Interrupts (IPI) on multi-core ARM processors.

Fast Interrupts are low latency interrupts which means the time between the triggering event and the execution is very short.
They are mainly used for realtime signal processing Kernel-Modules to provide low latency and jitter free streams.

Examples are capi_codec.ko, ulpcmlink.ko, avm_dect.ko, nlaudio.ko and krtp.ko.

Supportdata2 does not include fiq_ipi. It is of no interest for BoxMatrix.
In Supportdata-Probes it was never included (up to fw 7.39).

Examples

7530 fw 7.29 example:

root@fritz1:/var/mod/root# cat /proc//proc/fiq_ipi 

[cpu=0]Yield-to-Linux-Statistic:
	Max-Burst-Executed:                     2
	Max-Trigger-Latency:                  811 us  (since last call)
	avg Trigger-Period:                 13792 ms  (since last call)
[cpu=0]Executed ipi-functions-sum (since last call):
       try_module_get_type:              732 (0xc0f9f284 capicodec_module_get+0x50/0x60 [capi_codec])
           module_put_type:              732 (0xc0f9f2e0 capicodec_module_put+0x4c/0x58 [capi_codec])
                 call_type:               41 (0xc1075b94 nlaClosedHandler+0x28/0xf0 [ulpcmlink])

[cpu=1]Yield-to-Linux-Statistic:
	Max-Burst-Executed:                     7
	Max-Trigger-Latency:               169522 us  (since last call)
	avg Trigger-Period:                   181 ms  (since last call)
[cpu=1]Executed ipi-functions-sum (since last call):
              wake_up_type:         10903429 (0xc0ff8568 avm_dect_trigger_thread+0x90/0xa0 [avm_dect])
schedule_delayed_work_type:              521 (0xc107b388 nla_drain_cb+0x12c/0x4a0 [nlaudio])
        queue_work_on_type:            37792 (0xc05e2864 capi_oslib_trigger_scheduler+0x8c/0xb8)
  tasklet_hi_schedule_type:          4606963 (0xc103d008 rtp_fastpath_pktput+0xc8/0x250 [krtp])
                 call_type:               41 (0xc1075b94 nlaClosedHandler+0x28/0xf0 [ulpcmlink])
                   up_type:               11 (0xc0268fb4 console_unlock.part.8+0x688/0x808)

[cpu=2]Yield-to-Linux-Statistic:
	Max-Burst-Executed:                     1
	Max-Trigger-Latency:                   30 us  (since last call)
	avg Trigger-Period:                 35306 ms  (since last call)
[cpu=2]Executed ipi-functions-sum (since last call):
                 call_type:               41 (0xc1075b94 nlaClosedHandler+0x28/0xf0 [ulpcmlink])

[cpu=3]Yield-to-Linux-Statistic:
	Max-Burst-Executed:                     1
	Max-Trigger-Latency:                    7 us  (since last call)
	avg Trigger-Period:                 35306 ms  (since last call)
[cpu=3]Executed ipi-functions-sum (since last call):
                 call_type:               41 (0xc1075b94 nlaClosedHandler+0x28/0xf0 [ulpcmlink])

Dependencies

Daily updated index of all dependencies of this object. Last update: GMT.
A ** in the Mod column marks info from Supportdata2 probes, which will always stay incomplete.
A - in the Mod column marks manual research, the Firmware then shows where the Object occurs, not the Relation.

Relation Typ Object Mod Firmware Info Origin
0 dependencies for this object

Model-Matrix

Daily updated index of the presence, path and size of this object for each model. Last update: 2024-03-28 05:21 GMT.
Showing all models using this object. Click any column header (click-wait-click) to sort the list by the respective data.
The (main/scrpn/boot/arm/prx/atom) label in the Model column shows which CPU is meant for models with multiple Linux instances.
Note that this list comes from Supportdata2 probes, which can have arbitrary settings and come from different firmware versions.
It doesn't say much if a model is not listed here. It may be a missing supportdata2 file or just a disabled feature.

Help Supportdata2

The data in this article is incomplete since it was manually collected using the Supportdata2 project.

Unlike the Supportdata-Probes which have been collected for years Supportdata2 is brand new and only has a few probes.
If you have access to a shell then please help to extend the Supportdata2 collection to improve this data.

It's easy and it's done in minutes. Please send created data as an Email attachment to the address listed here. Thanks!

SMW-Browser

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Synonyms

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