* [Xenomai-help] Need some help getting past an
@ 2008-10-16 12:52 ken barnett
2008-10-16 12:58 ` Gilles Chanteperdrix
` (2 more replies)
0 siblings, 3 replies; 12+ messages in thread
From: ken barnett @ 2008-10-16 12:52 UTC (permalink / raw)
To: xenomai
Hope you can help.
My configuration is as follows:
PXA25xx ADS card w/ NO PCI bridge
Linux-2.6.24.5 kernel
Xenomai 2.4.5 stable
The Xenomai port to the kernel is as follows:
./prepare-kernel.sh linux=../../linux-2.6.24.5
--adeos=adeos-ipipe-2.6.24-arm-1.9-00.patch
--adeos=adeos-ipipe-2.6.24-arm-1.9-01.patch --arch=arm
./xenomai-2.4.5/scripts/prepare-kernel.sh --linux=linux-2.6.24.5
--adeos=./xenomai-2.4.5/ksrc/arch/arm/patches/
adeos-ipipe-2.6.24-arm-1.9-01.patch
I used 2 patches but have tried to use either/or with the
same indications.
configure CC=arm-linux-gcc --enable-arm-eabi
--prefix=/home/dvdb-lite/rootfs/usr/xenomai --host=arm-linux
--enable-arm-arch=pxa
See attached for the output log.
Step 1:
Looking at post from July 05, 2008 - 12:26: it states to turn on full debug to
get the best output so that output file is attached also as debug1.log
Step 2
Then it stated to turn off Xenomai all together:
The log looks the same but is also attached as debug2.log
Step 3
Turn off ipipe altogether
The kernel/card is back to working.
Hop you can help,
Thanks,
Ken
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: [Xenomai-help] Need some help getting past an 2008-10-16 12:52 [Xenomai-help] Need some help getting past an ken barnett @ 2008-10-16 12:58 ` Gilles Chanteperdrix 2008-10-16 13:40 ` [Xenomai-help] Unhandled irq 9 ken barnett 2008-10-21 16:12 ` [Xenomai-help] Reducing Kernel Mode Interrupt Latency Henry Bausley 2008-10-21 20:50 ` [Xenomai-help] Need some help getting past an Gilles Chanteperdrix 2 siblings, 1 reply; 12+ messages in thread From: Gilles Chanteperdrix @ 2008-10-16 12:58 UTC (permalink / raw) To: ken barnett; +Cc: xenomai ken barnett wrote: > Hope you can help. > > My configuration is as follows: > PXA25xx ADS card w/ NO PCI bridge > Linux-2.6.24.5 kernel > Xenomai 2.4.5 stable > > The Xenomai port to the kernel is as follows: > > ./prepare-kernel.sh linux=../../linux-2.6.24.5 > --adeos=adeos-ipipe-2.6.24-arm-1.9-00.patch > --adeos=adeos-ipipe-2.6.24-arm-1.9-01.patch --arch=arm > > ./xenomai-2.4.5/scripts/prepare-kernel.sh --linux=linux-2.6.24.5 > --adeos=./xenomai-2.4.5/ksrc/arch/arm/patches/ > adeos-ipipe-2.6.24-arm-1.9-01.patch > > I used 2 patches but have tried to use either/or with the > same indications. > > configure CC=arm-linux-gcc --enable-arm-eabi > --prefix=/home/dvdb-lite/rootfs/usr/xenomai --host=arm-linux > --enable-arm-arch=pxa > > See attached for the output log. > > Step 1: > Looking at post from July 05, 2008 - 12:26: it states to turn on full debug to > get the best output so that output file is attached also as debug1.log > > Step 2 > Then it stated to turn off Xenomai all together: > The log looks the same but is also attached as debug2.log > > Step 3 > Turn off ipipe altogether > The kernel/card is back to working. > > Hop you can help, I am afraid you forgot attachments, or url to them. -- Gilles. ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Xenomai-help] Unhandled irq 9 2008-10-16 12:58 ` Gilles Chanteperdrix @ 2008-10-16 13:40 ` ken barnett 0 siblings, 0 replies; 12+ messages in thread From: ken barnett @ 2008-10-16 13:40 UTC (permalink / raw) To: xenomai Gilles Chanteperdrix <gilles.chanteperdrix <at> xenomai.org> writes: > > ken barnett wrote: > > Hope you can help. > > > > My configuration is as follows: > > PXA25xx ADS card w/ NO PCI bridge > > Linux-2.6.24.5 kernel > > Xenomai 2.4.5 stable > > > > The Xenomai port to the kernel is as follows: > > > > ./prepare-kernel.sh linux=../../linux-2.6.24.5 > > --adeos=adeos-ipipe-2.6.24-arm-1.9-00.patch > > --adeos=adeos-ipipe-2.6.24-arm-1.9-01.patch --arch=arm > > > > ./xenomai-2.4.5/scripts/prepare-kernel.sh --linux=linux-2.6.24.5 > > --adeos=./xenomai-2.4.5/ksrc/arch/arm/patches/ > > adeos-ipipe-2.6.24-arm-1.9-01.patch > > > > I used 2 patches but have tried to use either/or with the > > same indications. > > > > configure CC=arm-linux-gcc --enable-arm-eabi > > --prefix=/home/dvdb-lite/rootfs/usr/xenomai --host=arm-linux > > --enable-arm-arch=pxa > > > > See attached for the output log1. > > > > Step 1: > > Looking at post from July 05, 2008 - 12:26: it states to turn on full debug to > > get the best output so that output file is attached also as debug3.log > > > > Step 2 > > Then it stated to turn off Xenomai all together: > > The log looks the same but is also attached as debug2.log > > > > Step 3 > > Turn off ipipe altogether > > The kernel/card is back to working. > > > > Hop you can help, > > I am afraid you forgot attachments, or url to them. > Oops: There is nowhere to attach a file so I will add them inline log1 Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. pxa2xx_udc: version 30-June-2007 udc: disconnect from host udc: is connected ether gadget: using random self ethernet address ether gadget: using random host ethernet address usb0: Ethernet Gadget, version: May Day 2005 usb0: using pxa2xx_udc, OUT ep2out-bulk IN ep1in-bulk usb0: MAC 06:6d:0a:58:17:f1 udc: connect to host pccard: PCMCIA card inserted into slot 0 pcmcia: registering new device pcmcia0.0 mice: PS/2 mouse device common for all mice input: ADSmartIO AT keyboard as /class/input/input0 input: ADS784x touch screen as /class/input/input1 ts: ADS784x touchscreen initialized i2c /dev entries driver i2c-adapter i2c-0: registered adapter pxa2xx-i2c.0 rtc-ds1307 0-0068: ds1307 rtc found rtc-ds1307 0-0068: rtc core: registered ds1307 as rtc0 rtc-ds1307 0-0068: 56 bytes nvram ltc1663 0-0020: ltc1663 dac found SA1100/PXA2xx Watchdog Timer: timer margin 60 sec Bluetooth: HCI USB driver ver 2.9 usbcore: registered new interface driver hci_usb pxamci: MMC/SD slot initialized Unable to set MCI power Unable to set MCI power usbcore: registered new interface driver usbhid drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver Advanced Linux Sound Architecture Driver Version 1.0.15 (Tue Nov 20 19:16:42 2007 UTC). usbcore: registered new interface driver snd-usb-audio nf_conntrack version 0.5.0 (1024 buckets, 4096 max) ip_tables: (C) 2000-2006 Netfilter Core Team TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 Bluetooth: L2CAP ver 2.9 Bluetooth: L2CAP socket layer initialized Bluetooth: BNEP (Ethernet Emulation) ver 1.2 RPC: Registered udp transport module. RPC: Registered tcp transport module. ieee80211: 802.11 data/management/control stack, git-1.1.13 ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@domain.hid> XScale DSP coprocessor detected. AC'97 0 access error (not audio or modem codec) pxa2xx-ac97: probe of pxa2xx-ac97 failed with error -13 cpufreq: pxa255 cpu frequency driver initialized cpufreq: changing pxa255 frequency to 398 Mhz, (SDRAM 196 Mhz) mmc0: new SD card at address 0001 mmcblk0: mmc0:0001 SD2GB 2025984KiB mmcblk0: hda: SanDisk SDCFBI-256, CFA DISK drive ide0 at 0xcaa80000-0xcaa80007,0xcaa8000e on irq 205 hda: max request size: 128KiB hda: 501760 sectors (256 MB) w/1KiB Cache, CHS=980/16/32 hda:irq 9, desc: c0431354, depth: 0, count: 0, unhandled: 0 irq 9, desc: c0431354, depth: 0, count: 0, unhandled: 0 irq 9, desc: c0431354, depth: 0, count: 0, unhandled: 0 irq 9, desc: c0431354, depth: 0, count: 0, unhandled: 0 >From here it just continues! debug2.log Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. pxa2xx_udc: version 30-June-2007 udc: disconnect from host udc: is connected ether gadget: using random self ethernet address ether gadget: using random host ethernet address usb0: Ethernet Gadget, version: May Day 2005 usb0: using pxa2xx_udc, OUT ep2out-bulk IN ep1in-bulk usb0: MAC 36:0a:b7:83:e8:4d udc: connect to host pccard: PCMCIA card inserted into slot 0 pcmcia: registering new device pcmcia0.0 mice: PS/2 mouse device common for all mice input: ADSmartIO AT keyboard as /class/input/input0 input: ADS784x touch screen as /class/input/input1 ts: ADS784x touchscreen initialized i2c /dev entries driver i2c-adapter i2c-0: registered adapter pxa2xx-i2c.0 rtc-ds1307 0-0068: ds1307 rtc found rtc-ds1307 0-0068: rtc core: registered ds1307 as rtc0 rtc-ds1307 0-0068: 56 bytes nvram ltc1663 0-0020: ltc1663 dac found SA1100/PXA2xx Watchdog Timer: timer margin 60 sec Bluetooth: HCI USB driver ver 2.9 usbcore: registered new interface driver hci_usb pxamci: MMC/SD slot initialized Unable to set MCI power Unable to set MCI power usbcore: registered new interface driver usbhid drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver Advanced Linux Sound Architecture Driver Version 1.0.15 (Tue Nov 20 19:16:42 2007 UTC). usbcore: registered new interface driver snd-usb-audio nf_conntrack version 0.5.0 (1024 buckets, 4096 max) ip_tables: (C) 2000-2006 Netfilter Core Team TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 Bluetooth: L2CAP ver 2.9 Bluetooth: L2CAP socket layer initialized Bluetooth: BNEP (Ethernet Emulation) ver 1.2 RPC: Registered udp transport module. RPC: Registered tcp transport module. ieee80211: 802.11 data/management/control stack, git-1.1.13 ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@domain.hid> XScale DSP coprocessor detected. AC'97 0 access error (not audio or modem codec) pxa2xx-ac97: probe of pxa2xx-ac97 failed with error -13 cpufreq: pxa255 cpu frequency driver initialized cpufreq: changing pxa255 frequency to 398 Mhz, (SDRAM 196 Mhz) mmc0: new SD card at address 0001 mmcblk0: mmc0:0001 SD2GB 2025984KiB mmcblk0: hda: SanDisk SDCFBI-256, CFA DISK drive ide0 at 0xcaa80000-0xcaa80007,0xcaa8000e on irq 205 hda: max request size: 128KiB hda: 501760 sectors (256 MB) w/1KiB Cache, CHS=980/16/32 hda:irq 9, desc: c03ff2d4, depth: 0, count: 0, unhandled: 0 irq 9, desc: c03ff2d4, depth: 0, count: 0, unhandled: 0 irq 9, desc: c03ff2d4, depth: 0, count: 0, unhandled: 0 irq 9, desc: c03ff2d4, depth: 0, count: 0, unhandled: 0 irq 9, desc: c03ff2d4, depth: 0, count: 0, unhandled: 0 irq 9, desc: c03ff2d4, depth: 0, count: 0, unhandled: 0 irq 9, desc: c03ff2d4, depth: 0, count: 0, unhandled: 0 irq 9, desc: c03ff2d4, depth: 0, count: 0, unhandled: 0 irq 9, desc: c03ff2d4, depth: 0, count: 0, unhandled: 0 debug3.log Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. pxa2xx_udc: version 30-June-2007 udc: disconnect from host udc: is connected ether gadget: using random self ethernet address ether gadget: using random host ethernet address usb0: Ethernet Gadget, version: May Day 2005 usb0: using pxa2xx_udc, OUT ep2out-bulk IN ep1in-bulk usb0: MAC 26:cb:79:29:ff:48 udc: connect to host pccard: PCMCIA card inserted into slot 0 pcmcia: registering new device pcmcia0.0 mice: PS/2 mouse device common for all mice input: ADSmartIO AT keyboard as /class/input/input0 input: ADS784x touch screen as /class/input/input1 ts: ADS784x touchscreen initialized i2c /dev entries driver i2c-adapter i2c-0: registered adapter pxa2xx-i2c.0 rtc-ds1307 0-0068: ds1307 rtc found rtc-ds1307 0-0068: rtc core: registered ds1307 as rtc0 rtc-ds1307 0-0068: 56 bytes nvram ltc1663 0-0020: ltc1663 dac found SA1100/PXA2xx Watchdog Timer: timer margin 60 sec Bluetooth: HCI USB driver ver 2.9 usbcore: registered new interface driver hci_usb pxamci: MMC/SD slot initialized Unable to set MCI power Unable to set MCI power usbcore: registered new interface driver usbhid drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver Advanced Linux Sound Architecture Driver Version 1.0.15 (Tue Nov 20 19:16:42 2007 UTC). usbcore: registered new interface driver snd-usb-audio nf_conntrack version 0.5.0 (1024 buckets, 4096 max) ip_tables: (C) 2000-2006 Netfilter Core Team TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 Bluetooth: L2CAP ver 2.9 Bluetooth: L2CAP socket layer initialized Bluetooth: BNEP (Ethernet Emulation) ver 1.2 RPC: Registered udp transport module. RPC: Registered tcp transport module. ieee80211: 802.11 data/management/control stack, git-1.1.13 ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@domain.hid> XScale DSP coprocessor detected. mmc0: new SD card at address 0001 mmcblk0: mmc0:0001 SD2GB 2025984KiB mmcblk0:<3>AC'97 0 access error (not audio or modem codec) pxa2xx-ac97: probe of pxa2xx-ac97 failed with error -13 cpufreq: pxa255 cpu frequency driver initialized cpufreq: changing pxa255 frequency to 398 Mhz, (SDRAM 196 Mhz) hda: SanDisk SDCFBI-256, CFA DISK drive ide0 at 0xcaa80000-0xcaa80007,0xcaa8000e on irq 205 hda: max request size: 128KiB hda: 501760 sectors (256 MB) w/1KiB Cache, CHS=980/16/32 hda:irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set __ipipe_ack_bad_irq: unknown flow handler for IRQ 9 irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ->handle_irq(): c003f020, ->chip(): c044f770, ->action(): 00000000 IRQ_NOPROBE set IRQ_NOREQUEST set irq 9, desc: c0455354, depth: 0, count: 0, unhandled: 0 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Xenomai-help] Reducing Kernel Mode Interrupt Latency 2008-10-16 12:52 [Xenomai-help] Need some help getting past an ken barnett 2008-10-16 12:58 ` Gilles Chanteperdrix @ 2008-10-21 16:12 ` Henry Bausley 2008-10-21 16:19 ` Gilles Chanteperdrix ` (3 more replies) 2008-10-21 20:50 ` [Xenomai-help] Need some help getting past an Gilles Chanteperdrix 2 siblings, 4 replies; 12+ messages in thread From: Henry Bausley @ 2008-10-21 16:12 UTC (permalink / raw) To: xenomai Is there any way the kernel mode interrupt handling maximum times can be decreased. I very much need to reduce my kernel mode interrupt latencies. I know my hardware is capable of better performance based upon measurements done with RT Linux. Below is our timing comparison, all times are the maximums. Xenomai 2.4.5 interrupt handler w/ Kernel 2.6.26 powerpc, gcc 4.2 ------------------------------------------------------------------- AMCC 440EP - 24.5 usec AMCC 460EX - 16.5 usec FSM Labs RT-Linux 2.2 w/ Kernel 2.6.14 ppc, gcc 3.3 --------------------------------------------------- AMCC 440EP - 10.0 usec AMCC 460EX - Not Available, would require 10's of thousands of dollars to WindRiver ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [Xenomai-help] Reducing Kernel Mode Interrupt Latency 2008-10-21 16:12 ` [Xenomai-help] Reducing Kernel Mode Interrupt Latency Henry Bausley @ 2008-10-21 16:19 ` Gilles Chanteperdrix 2008-10-21 16:22 ` Philippe Gerum ` (2 subsequent siblings) 3 siblings, 0 replies; 12+ messages in thread From: Gilles Chanteperdrix @ 2008-10-21 16:19 UTC (permalink / raw) To: Henry Bausley; +Cc: xenomai Henry Bausley wrote: > Is there any way the kernel mode interrupt handling maximum times can be > decreased. I very much need to reduce my kernel mode interrupt > latencies. I know my hardware is capable of better performance based > upon measurements done with RT Linux. Below is our timing comparison, > all times are the maximums. I will let the PPC specialists answer, but you can: - make sure that Xenomai is compiled in kernel and not as a module, - increase /proc/xenomai/latency (you can write a new value to it), but in this case, you have to accept to be woken up before the timers shots. -- Gilles. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [Xenomai-help] Reducing Kernel Mode Interrupt Latency 2008-10-21 16:12 ` [Xenomai-help] Reducing Kernel Mode Interrupt Latency Henry Bausley 2008-10-21 16:19 ` Gilles Chanteperdrix @ 2008-10-21 16:22 ` Philippe Gerum 2008-10-21 21:00 ` Alexis Berlemont 2008-10-22 7:02 ` Wolfgang Grandegger 2008-10-27 15:08 ` Philippe Gerum 3 siblings, 1 reply; 12+ messages in thread From: Philippe Gerum @ 2008-10-21 16:22 UTC (permalink / raw) To: Henry Bausley; +Cc: xenomai Henry Bausley wrote: > Is there any way the kernel mode interrupt handling maximum times can be > decreased. I very much need to reduce my kernel mode interrupt > latencies. I know my hardware is capable of better performance based > upon measurements done with RT Linux. Below is our timing comparison, > all times are the maximums. > > > Xenomai 2.4.5 interrupt handler w/ Kernel 2.6.26 powerpc, gcc 4.2 > ------------------------------------------------------------------- > AMCC 440EP - 24.5 usec > AMCC 460EX - 16.5 usec > > > FSM Labs RT-Linux 2.2 w/ Kernel 2.6.14 ppc, gcc 3.3 > --------------------------------------------------- > AMCC 440EP - 10.0 usec > AMCC 460EX - Not Available, would require 10's of thousands of dollars > to WindRiver > It would be interesting to know the figures for 2.6.14 ppc w/o RTLinux + Xenomai 2.4.5. Aside of this, I'm working on an experimental patch which implements unmasked context switches on the Linux side. I stole this idea from Gilles, who drastically decreased latency on ARM this way. This will not decrease the user-space latency on powerpc, but this might help in-kernel interrupt latency, by allowing interrupts to be taken while changing the MMU context. I'll post that stuff this week if it happens to decrease the in-kernel latency significantly. > > > > _______________________________________________ > Xenomai-help mailing list > Xenomai-help@domain.hid > https://mail.gna.org/listinfo/xenomai-help > -- Philippe. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [Xenomai-help] Reducing Kernel Mode Interrupt Latency 2008-10-21 16:22 ` Philippe Gerum @ 2008-10-21 21:00 ` Alexis Berlemont 0 siblings, 0 replies; 12+ messages in thread From: Alexis Berlemont @ 2008-10-21 21:00 UTC (permalink / raw) To: xenomai Hi, > Henry Bausley wrote: > > Is there any way the kernel mode interrupt handling maximum times can be > > decreased. I very much need to reduce my kernel mode interrupt > > latencies. I know my hardware is capable of better performance based > > upon measurements done with RT Linux. Below is our timing comparison, > > all times are the maximums. > > > > > > Xenomai 2.4.5 interrupt handler w/ Kernel 2.6.26 powerpc, gcc 4.2 > > ------------------------------------------------------------------- > > AMCC 440EP - 24.5 usec > > AMCC 460EX - 16.5 usec > > > > > > FSM Labs RT-Linux 2.2 w/ Kernel 2.6.14 ppc, gcc 3.3 > > --------------------------------------------------- > > AMCC 440EP - 10.0 usec > > AMCC 460EX - Not Available, would require 10's of thousands of dollars > > to WindRiver > > It would be interesting to know the figures for 2.6.14 ppc w/o RTLinux + > Xenomai 2.4.5. Just for information, I was able to launch some tests on an AMCC PPC440EP eval board (yosemite I think) I borrowed. I did not have the time to change the configuration so I launched the latency test (-t 0) on a Linux kernel 2.6.19 +Xenomai 2.3.3 (no module). The results are in the same range: ./latency -t 0 + ping -f + ls -lR / RTT| 00:10:31 (periodic user-mode task, 100 us period, priority 99) RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat worst RTD| -3.744| -2.379| 14.660| 0| -4.333| 26.621 RTD| -3.744| -2.236| 13.198| 0| -4.333| 26.621 RTD| -3.738| -2.259| 15.240| 0| -4.333| 26.621 RTD| -3.744| -2.349| 12.870| 0| -4.333| 26.621 RTD| -3.744| -2.304| 14.752| 0| -4.333| 26.621 There is no finetuning in /proc/xenomai/latency: # cat /proc/xenomai/latency 9498 Alexis. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [Xenomai-help] Reducing Kernel Mode Interrupt Latency 2008-10-21 16:12 ` [Xenomai-help] Reducing Kernel Mode Interrupt Latency Henry Bausley 2008-10-21 16:19 ` Gilles Chanteperdrix 2008-10-21 16:22 ` Philippe Gerum @ 2008-10-22 7:02 ` Wolfgang Grandegger 2008-10-27 15:08 ` Philippe Gerum 3 siblings, 0 replies; 12+ messages in thread From: Wolfgang Grandegger @ 2008-10-22 7:02 UTC (permalink / raw) To: Henry Bausley; +Cc: xenomai Henry Bausley wrote: > Is there any way the kernel mode interrupt handling maximum times can be > decreased. I very much need to reduce my kernel mode interrupt > latencies. I know my hardware is capable of better performance based > upon measurements done with RT Linux. Below is our timing comparison, > all times are the maximums. > > > Xenomai 2.4.5 interrupt handler w/ Kernel 2.6.26 powerpc, gcc 4.2 > ------------------------------------------------------------------- > AMCC 440EP - 24.5 usec > AMCC 460EX - 16.5 usec > > > FSM Labs RT-Linux 2.2 w/ Kernel 2.6.14 ppc, gcc 3.3 > --------------------------------------------------- > AMCC 440EP - 10.0 usec > AMCC 460EX - Not Available, would require 10's of thousands of dollars > to WindRiver What exactly did you measure and did you run the tests under comparable (non real-time) system load? As cache re-fills are causing significant latencies, code size matters, but I'm surprised that the difference is that big. Wolfgang. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [Xenomai-help] Reducing Kernel Mode Interrupt Latency 2008-10-21 16:12 ` [Xenomai-help] Reducing Kernel Mode Interrupt Latency Henry Bausley ` (2 preceding siblings ...) 2008-10-22 7:02 ` Wolfgang Grandegger @ 2008-10-27 15:08 ` Philippe Gerum 2008-10-28 23:15 ` Henry Bausley 3 siblings, 1 reply; 12+ messages in thread From: Philippe Gerum @ 2008-10-27 15:08 UTC (permalink / raw) To: Henry Bausley; +Cc: xenomai Henry Bausley wrote: > Is there any way the kernel mode interrupt handling maximum times can be > decreased. I very much need to reduce my kernel mode interrupt > latencies. I know my hardware is capable of better performance based > upon measurements done with RT Linux. Below is our timing comparison, > all times are the maximums. > > > Xenomai 2.4.5 interrupt handler w/ Kernel 2.6.26 powerpc, gcc 4.2 > ------------------------------------------------------------------- > AMCC 440EP - 24.5 usec > AMCC 460EX - 16.5 usec > While running long performances tests on a Sequoia board here (I'm still investigating the latency trace data and evaluating optimizations), I've never been able to reproduce such worst case latency values. The figures I have on the 440EPx (w/ 2.6.26 + Xenomai 2.4.5 + I-pipe 2.2-07 + ELDK-4.2 toolchain) are: klatency: 15.2 us latency -t2 : 17.1 us latency -t1: 26.1 us latency -t0: 34.9 us /proc/xenomai/latency reset to 0 (no timer shot anticipation) continuous process creation loop and interrupt flood on entry. The figure you are most likely interested in - the one that actually compares with RTLinux's latency test - is given by the klatency test, i.e. pure in-kernel timer handler, no user-space Xenomai thread). Could you tell us a bit more about your kernel config, and the kind of stress you put on the system? TIA, > > FSM Labs RT-Linux 2.2 w/ Kernel 2.6.14 ppc, gcc 3.3 > --------------------------------------------------- > AMCC 440EP - 10.0 usec > AMCC 460EX - Not Available, would require 10's of thousands of dollars > to WindRiver > > > > > _______________________________________________ > Xenomai-help mailing list > Xenomai-help@domain.hid > https://mail.gna.org/listinfo/xenomai-help > -- Philippe. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [Xenomai-help] Reducing Kernel Mode Interrupt Latency 2008-10-27 15:08 ` Philippe Gerum @ 2008-10-28 23:15 ` Henry Bausley 2008-11-07 12:13 ` Philippe Gerum 0 siblings, 1 reply; 12+ messages in thread From: Henry Bausley @ 2008-10-28 23:15 UTC (permalink / raw) To: rpm; +Cc: xenomai [-- Attachment #1: Type: text/plain, Size: 3202 bytes --] We have a 2.2kHz clock signal that triggers an external interrupt. In the ISR we write to an output. We measure the time between the clock signal that is generating the interrupt and the output being set in the ISR using a LeCroy 6100A oscilloscope. What we do to stress the system is continuously do printf's simultaneously to three telnet sessions so we can see how the system will perform under heavy Ethernet traffic. If we don't stress the system with the printf's the interrupt jitter is reduced. The test are performed identically with RT-Linux and Xenomai with virtually identical source code, just a few #ifdef's to accommodate the differences in the two api's. I am using Xeno 2.4.5 w/ Kernel 2.6.26 powerpc, gcc 4.2 w/ I-pipe 2.2-04 and added the patch you posted for the issue with cascaded UIC. I am running the yosemite 440EP based hardware @ 533Mhz and the canyonlands 460EX based hardware @ 800Mhz. I don't have any sequoia 440EPX hardware. My hardware is custom, the 440EP version is only different in that we used a larger CPLD for some of our custom hardware. The 460EX based hardware also uses a larger CPLD for our custom hardware, but in addition also has ECC memory. /proc/xenomai/latency is at 4001 I attached the config file if that helps. On Mon, 2008-10-27 at 16:08 +0100, Philippe Gerum wrote: > Henry Bausley wrote: > > Is there any way the kernel mode interrupt handling maximum times can be > > decreased. I very much need to reduce my kernel mode interrupt > > latencies. I know my hardware is capable of better performance based > > upon measurements done with RT Linux. Below is our timing comparison, > > all times are the maximums. > > > > > > Xenomai 2.4.5 interrupt handler w/ Kernel 2.6.26 powerpc, gcc 4.2 > > ------------------------------------------------------------------- > > AMCC 440EP - 24.5 usec > > AMCC 460EX - 16.5 usec > > > > While running long performances tests on a Sequoia board here (I'm still > investigating the latency trace data and evaluating optimizations), I've never > been able to reproduce such worst case latency values. > > The figures I have on the 440EPx (w/ 2.6.26 + Xenomai 2.4.5 + I-pipe 2.2-07 + > ELDK-4.2 toolchain) are: > > klatency: 15.2 us > latency -t2 : 17.1 us > > latency -t1: 26.1 us > latency -t0: 34.9 us > > /proc/xenomai/latency reset to 0 (no timer shot anticipation) > continuous process creation loop and interrupt flood on entry. > > The figure you are most likely interested in - the one that actually compares > with RTLinux's latency test - is given by the klatency test, i.e. pure in-kernel > timer handler, no user-space Xenomai thread). Could you tell us a bit more about > your kernel config, and the kind of stress you put on the system? TIA, > > > > > FSM Labs RT-Linux 2.2 w/ Kernel 2.6.14 ppc, gcc 3.3 > > --------------------------------------------------- > > AMCC 440EP - 10.0 usec > > AMCC 460EX - Not Available, would require 10's of thousands of dollars > > to WindRiver > > > > > > > > > > _______________________________________________ > > Xenomai-help mailing list > > Xenomai-help@domain.hid > > https://mail.gna.org/listinfo/xenomai-help > > > > [-- Attachment #2: config --] [-- Type: text/plain, Size: 31557 bytes --] # # Automatically generated make config: don't edit # Linux kernel version: 2.6.26.2 # Wed Oct 22 12:12:13 2008 # # CONFIG_PPC64 is not set # # Processor support # # CONFIG_6xx is not set # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set CONFIG_44x=y # CONFIG_E200 is not set CONFIG_PPC_FPU=y CONFIG_4xx=y CONFIG_BOOKE=y CONFIG_PTE_64BIT=y CONFIG_PHYS_64BIT=y # CONFIG_PPC_MM_SLICES is not set CONFIG_NOT_COHERENT_CACHE=y CONFIG_PPC32=y CONFIG_WORD_SIZE=32 CONFIG_PPC_MERGE=y CONFIG_MMU=y CONFIG_GENERIC_CMOS_UPDATE=y CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y CONFIG_EARLY_PRINTK=y # CONFIG_SOFTDISABLE is not set CONFIG_GENERIC_NVRAM=y CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_PPC_OF=y CONFIG_OF=y CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y # CONFIG_DEFAULT_UIMAGE is not set CONFIG_PPC_DCR_NATIVE=y # CONFIG_PPC_DCR_MMIO is not set CONFIG_PPC_DCR=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # General setup # CONFIG_EXPERIMENTAL=y CONFIG_BROKEN_ON_SMP=y CONFIG_INIT_ENV_ARG_LIMIT=32 CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set # CONFIG_AUDIT is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=14 # CONFIG_CGROUPS is not set CONFIG_GROUP_SCHED=y # CONFIG_FAIR_GROUP_SCHED is not set # CONFIG_RT_GROUP_SCHED is not set CONFIG_USER_SCHED=y # CONFIG_CGROUP_SCHED is not set CONFIG_SYSFS_DEPRECATED=y CONFIG_SYSFS_DEPRECATED_V2=y # CONFIG_RELAY is not set # CONFIG_NAMESPACES is not set CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SYSCTL=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_SYSCTL_SYSCALL_CHECK=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y # CONFIG_LOGBUFFER is not set CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_COMPAT_BRK=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_SLUB_DEBUG=y # CONFIG_SLAB is not set CONFIG_SLUB=y # CONFIG_SLOB is not set # CONFIG_PROFILING is not set # CONFIG_MARKERS is not set CONFIG_HAVE_OPROFILE=y # CONFIG_KPROBES is not set CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y # CONFIG_HAVE_DMA_ATTRS is not set CONFIG_PROC_PAGE_MONITOR=y CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 CONFIG_MODULES=y # CONFIG_MODULE_FORCE_LOAD is not set CONFIG_MODULE_UNLOAD=y # CONFIG_MODULE_FORCE_UNLOAD is not set # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_KMOD=y CONFIG_BLOCK=y CONFIG_LBD=y # CONFIG_BLK_DEV_IO_TRACE is not set # CONFIG_LSF is not set # CONFIG_BLK_DEV_BSG is not set # # IO Schedulers # CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y CONFIG_DEFAULT_AS=y # CONFIG_DEFAULT_DEADLINE is not set # CONFIG_DEFAULT_CFQ is not set # CONFIG_DEFAULT_NOOP is not set CONFIG_DEFAULT_IOSCHED="anticipatory" CONFIG_CLASSIC_RCU=y # # Real-time sub-system # CONFIG_XENOMAI=y CONFIG_XENO_GENERIC_STACKPOOL=y CONFIG_XENO_OPT_NUCLEUS=y CONFIG_XENO_OPT_PERVASIVE=y # CONFIG_XENO_OPT_ISHIELD is not set CONFIG_XENO_OPT_PRIOCPL=y CONFIG_XENO_OPT_PIPELINE_HEAD=y CONFIG_XENO_OPT_PIPE=y CONFIG_XENO_OPT_PIPE_NRDEV=32 CONFIG_XENO_OPT_REGISTRY=y CONFIG_XENO_OPT_REGISTRY_NRSLOTS=512 CONFIG_XENO_OPT_SYS_HEAPSZ=65536 CONFIG_XENO_OPT_SYS_STACKPOOLSZ=32 CONFIG_XENO_OPT_STATS=y # CONFIG_XENO_OPT_DEBUG is not set # CONFIG_XENO_OPT_SHIRQ is not set # # Timing # # CONFIG_XENO_OPT_TIMING_PERIODIC is not set CONFIG_XENO_OPT_TIMING_SCHEDLAT=0 # # Scalability # # CONFIG_XENO_OPT_SCALABLE_SCHED is not set CONFIG_XENO_OPT_TIMER_LIST=y # CONFIG_XENO_OPT_TIMER_HEAP is not set # CONFIG_XENO_OPT_TIMER_WHEEL is not set # # Machine # CONFIG_XENO_HW_FPU=y # # Interfaces # CONFIG_XENO_SKIN_NATIVE=y CONFIG_XENO_OPT_NATIVE_PERIOD=0 CONFIG_XENO_OPT_NATIVE_PIPE=y CONFIG_XENO_OPT_NATIVE_PIPE_BUFSZ=1024 CONFIG_XENO_OPT_NATIVE_REGISTRY=y CONFIG_XENO_OPT_NATIVE_SEM=y CONFIG_XENO_OPT_NATIVE_EVENT=y CONFIG_XENO_OPT_NATIVE_MUTEX=y CONFIG_XENO_OPT_NATIVE_COND=y CONFIG_XENO_OPT_NATIVE_QUEUE=y CONFIG_XENO_OPT_NATIVE_HEAP=y CONFIG_XENO_OPT_NATIVE_ALARM=y CONFIG_XENO_OPT_NATIVE_MPS=y # CONFIG_XENO_OPT_NATIVE_INTR is not set CONFIG_XENO_SKIN_POSIX=y CONFIG_XENO_OPT_POSIX_PERIOD=0 CONFIG_XENO_OPT_POSIX_SHM=y CONFIG_XENO_OPT_POSIX_INTR=y # CONFIG_XENO_OPT_POSIX_SELECT is not set CONFIG_XENO_OPT_DEBUG_POSIX=y # CONFIG_XENO_SKIN_PSOS is not set # CONFIG_XENO_SKIN_UITRON is not set # CONFIG_XENO_SKIN_VRTX is not set # CONFIG_XENO_SKIN_VXWORKS is not set # CONFIG_XENO_SKIN_RTAI is not set CONFIG_XENO_SKIN_RTDM=y CONFIG_XENO_OPT_RTDM_PERIOD=0 CONFIG_XENO_OPT_RTDM_FILDES=128 # CONFIG_XENO_OPT_RTDM_SELECT is not set # # Drivers # # # Serial drivers # # CONFIG_XENO_DRIVERS_16550A is not set # # Testing drivers # CONFIG_XENO_KLATENCY_MODULE=m # CONFIG_XENO_DRIVERS_TIMERBENCH is not set # CONFIG_XENO_DRIVERS_IRQBENCH is not set # CONFIG_XENO_DRIVERS_SWITCHTEST is not set # # CAN drivers # # CONFIG_XENO_DRIVERS_CAN is not set CONFIG_PPC4xx_PCI_EXPRESS=y # # Platform support # # CONFIG_PPC_MPC512x is not set # CONFIG_PPC_MPC5121 is not set # CONFIG_PPC_CELL is not set # CONFIG_PPC_CELL_NATIVE is not set # CONFIG_PQ2ADS is not set # CONFIG_BAMBOO is not set # CONFIG_EBONY is not set # CONFIG_SEQUOIA is not set # CONFIG_TAISHAN is not set # CONFIG_KATMAI is not set # CONFIG_RAINIER is not set # CONFIG_WARP is not set CONFIG_CANYONLANDS=y # CONFIG_YOSEMITE is not set CONFIG_460EX=y # CONFIG_IPIC is not set # CONFIG_MPIC is not set # CONFIG_MPIC_WEIRD is not set # CONFIG_PPC_I8259 is not set # CONFIG_PPC_RTAS is not set # CONFIG_MMIO_NVRAM is not set # CONFIG_PPC_MPC106 is not set # CONFIG_PPC_970_NAP is not set # CONFIG_PPC_INDIRECT_IO is not set # CONFIG_GENERIC_IOMAP is not set # CONFIG_CPU_FREQ is not set # CONFIG_FSL_ULI1575 is not set # # Kernel options # CONFIG_IPIPE=y CONFIG_IPIPE_DOMAINS=4 CONFIG_IPIPE_COMPAT=y CONFIG_HIGHMEM=y CONFIG_TICK_ONESHOT=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y CONFIG_GENERIC_CLOCKEVENTS_BUILD=y # CONFIG_HZ_100 is not set CONFIG_HZ_250=y # CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 # CONFIG_SCHED_HRTICK is not set CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set # CONFIG_MATH_EMULATION is not set # CONFIG_IOMMU_HELPER is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y # CONFIG_DISCONTIGMEM_MANUAL is not set # CONFIG_SPARSEMEM_MANUAL is not set CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set # CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set CONFIG_PAGEFLAGS_EXTENDED=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y CONFIG_FORCE_MAX_ZONEORDER=11 CONFIG_PROC_DEVICETREE=y CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="" CONFIG_SECCOMP=y CONFIG_ISA_DMA_API=y # # Bus options # CONFIG_ZONE_DMA=y CONFIG_PPC_INDIRECT_PCI=y CONFIG_4xx_SOC=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y CONFIG_PCI_SYSCALL=y # CONFIG_PCIEPORTBUS is not set CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_MSI is not set CONFIG_PCI_LEGACY=y # CONFIG_PCCARD is not set # CONFIG_HOTPLUG_PCI is not set # CONFIG_HAS_RAPIDIO is not set # # Advanced setup # # CONFIG_ADVANCED_OPTIONS is not set # # Default settings for advanced configuration options are used # CONFIG_LOWMEM_SIZE=0x30000000 CONFIG_PAGE_OFFSET=0xc0000000 CONFIG_KERNEL_START=0xc0000000 CONFIG_PHYSICAL_START=0x00000000 CONFIG_TASK_SIZE=0xc0000000 CONFIG_CONSISTENT_START=0xff100000 CONFIG_CONSISTENT_SIZE=0x00200000 # # Networking # CONFIG_NET=y # # Networking options # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set CONFIG_UNIX=y # CONFIG_NET_KEY is not set CONFIG_INET=y # CONFIG_IP_MULTICAST is not set # CONFIG_IP_ADVANCED_ROUTER is not set CONFIG_IP_FIB_HASH=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y # CONFIG_IP_PNP_RARP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_ARPD is not set # CONFIG_SYN_COOKIES is not set # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set # CONFIG_INET_IPCOMP is not set # CONFIG_INET_XFRM_TUNNEL is not set # CONFIG_INET_TUNNEL is not set # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set # CONFIG_INET_LRO is not set CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set CONFIG_TCP_CONG_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_TCP_MD5SIG is not set # CONFIG_IPV6 is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set # CONFIG_IP_DCCP is not set # CONFIG_IP_SCTP is not set # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set # CONFIG_VLAN_8021Q is not set # CONFIG_DECNET is not set # CONFIG_LLC2 is not set # CONFIG_IPX is not set # CONFIG_ATALK is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_NET_SCHED is not set # # Network testing # # CONFIG_NET_PKTGEN is not set # CONFIG_HAMRADIO is not set # CONFIG_CAN is not set # CONFIG_IRDA is not set # CONFIG_BT is not set # CONFIG_AF_RXRPC is not set # # Wireless # # CONFIG_CFG80211 is not set # CONFIG_WIRELESS_EXT is not set # CONFIG_MAC80211 is not set # CONFIG_IEEE80211 is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set # # Device Drivers # # # Generic Driver Options # CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y # CONFIG_SYS_HYPERVISOR is not set CONFIG_CONNECTOR=y CONFIG_PROC_EVENTS=y CONFIG_MTD=y # CONFIG_MTD_DEBUG is not set CONFIG_MTD_CONCAT=y CONFIG_MTD_PARTITIONS=y # CONFIG_MTD_REDBOOT_PARTS is not set CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_OF_PARTS=y # CONFIG_MTD_AR7_PARTS is not set # # User Modules And Translation Layers # CONFIG_MTD_CHAR=y CONFIG_MTD_BLKDEVS=y CONFIG_MTD_BLOCK=y # CONFIG_FTL is not set # CONFIG_NFTL is not set # CONFIG_INFTL is not set # CONFIG_RFD_FTL is not set # CONFIG_SSFDC is not set # CONFIG_MTD_OOPS is not set # # RAM/ROM/Flash chip drivers # CONFIG_MTD_CFI=y # CONFIG_MTD_JEDECPROBE is not set CONFIG_MTD_GEN_PROBE=y # CONFIG_MTD_CFI_ADV_OPTIONS is not set CONFIG_MTD_MAP_BANK_WIDTH_1=y CONFIG_MTD_MAP_BANK_WIDTH_2=y CONFIG_MTD_MAP_BANK_WIDTH_4=y # CONFIG_MTD_MAP_BANK_WIDTH_8 is not set # CONFIG_MTD_MAP_BANK_WIDTH_16 is not set # CONFIG_MTD_MAP_BANK_WIDTH_32 is not set CONFIG_MTD_CFI_I1=y CONFIG_MTD_CFI_I2=y # CONFIG_MTD_CFI_I4 is not set # CONFIG_MTD_CFI_I8 is not set # CONFIG_MTD_CFI_INTELEXT is not set CONFIG_MTD_CFI_AMDSTD=y # CONFIG_MTD_CFI_STAA is not set CONFIG_MTD_CFI_UTIL=y # CONFIG_MTD_RAM is not set # CONFIG_MTD_ROM is not set # CONFIG_MTD_ABSENT is not set # # Mapping drivers for chip access # # CONFIG_MTD_COMPLEX_MAPPINGS is not set # CONFIG_MTD_PHYSMAP is not set CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_INTEL_VR_NOR is not set # CONFIG_MTD_PLATRAM is not set # # Self-contained MTD device drivers # # CONFIG_MTD_PMC551 is not set # CONFIG_MTD_SLRAM is not set # CONFIG_MTD_PHRAM is not set # CONFIG_MTD_MTDRAM is not set # CONFIG_MTD_BLOCK2MTD is not set # # Disk-On-Chip Device Drivers # # CONFIG_MTD_DOC2000 is not set # CONFIG_MTD_DOC2001 is not set # CONFIG_MTD_DOC2001PLUS is not set # CONFIG_MTD_NAND is not set # CONFIG_MTD_ONENAND is not set # # UBI - Unsorted block images # # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set # CONFIG_BLK_DEV_UMEM is not set # CONFIG_BLK_DEV_COW_COMMON is not set # CONFIG_BLK_DEV_LOOP is not set # CONFIG_BLK_DEV_NBD is not set # CONFIG_BLK_DEV_SX8 is not set # CONFIG_BLK_DEV_UB is not set CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=35000 # CONFIG_BLK_DEV_XIP is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set # CONFIG_XILINX_SYSACE is not set # CONFIG_MISC_DEVICES is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set # # SCSI device support # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y CONFIG_SCSI_DMA=y # CONFIG_SCSI_TGT is not set # CONFIG_SCSI_NETLINK is not set CONFIG_SCSI_PROC_FS=y # # SCSI support type (disk, tape, CD-ROM) # CONFIG_BLK_DEV_SD=y # CONFIG_CHR_DEV_ST is not set # CONFIG_CHR_DEV_OSST is not set # CONFIG_BLK_DEV_SR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set # # Some SCSI devices (e.g. CD jukebox) support multiple LUNs # # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set # CONFIG_SCSI_SCAN_ASYNC is not set CONFIG_SCSI_WAIT_SCAN=m # # SCSI Transports # # CONFIG_SCSI_SPI_ATTRS is not set # CONFIG_SCSI_FC_ATTRS is not set # CONFIG_SCSI_ISCSI_ATTRS is not set # CONFIG_SCSI_SAS_LIBSAS is not set # CONFIG_SCSI_SRP_ATTRS is not set # CONFIG_SCSI_LOWLEVEL is not set CONFIG_ATA=y # CONFIG_ATA_NONSTANDARD is not set CONFIG_SATA_PMP=y # CONFIG_SATA_AHCI is not set # CONFIG_SATA_SIL24 is not set CONFIG_ATA_SFF=y # CONFIG_SATA_SVW is not set # CONFIG_ATA_PIIX is not set # CONFIG_SATA_MV is not set # CONFIG_SATA_NV is not set # CONFIG_PDC_ADMA is not set # CONFIG_SATA_QSTOR is not set # CONFIG_SATA_PROMISE is not set # CONFIG_SATA_SX4 is not set # CONFIG_SATA_SIL is not set # CONFIG_SATA_SIS is not set # CONFIG_SATA_ULI is not set # CONFIG_SATA_VIA is not set # CONFIG_SATA_VITESSE is not set # CONFIG_SATA_INIC162X is not set CONFIG_SATA_DWC=y # CONFIG_SATA_DWC_DEBUG is not set # CONFIG_PATA_ALI is not set # CONFIG_PATA_AMD is not set # CONFIG_PATA_ARTOP is not set # CONFIG_PATA_ATIIXP is not set # CONFIG_PATA_CMD640_PCI is not set # CONFIG_PATA_CMD64X is not set # CONFIG_PATA_CS5520 is not set # CONFIG_PATA_CS5530 is not set # CONFIG_PATA_CYPRESS is not set # CONFIG_PATA_EFAR is not set # CONFIG_ATA_GENERIC is not set # CONFIG_PATA_HPT366 is not set # CONFIG_PATA_HPT37X is not set # CONFIG_PATA_HPT3X2N is not set # CONFIG_PATA_HPT3X3 is not set # CONFIG_PATA_IT821X is not set # CONFIG_PATA_IT8213 is not set # CONFIG_PATA_JMICRON is not set # CONFIG_PATA_TRIFLEX is not set # CONFIG_PATA_MARVELL is not set # CONFIG_PATA_MPIIX is not set # CONFIG_PATA_OLDPIIX is not set # CONFIG_PATA_NETCELL is not set # CONFIG_PATA_NINJA32 is not set # CONFIG_PATA_NS87410 is not set # CONFIG_PATA_NS87415 is not set # CONFIG_PATA_OPTI is not set # CONFIG_PATA_OPTIDMA is not set # CONFIG_PATA_PDC_OLD is not set # CONFIG_PATA_RADISYS is not set # CONFIG_PATA_RZ1000 is not set # CONFIG_PATA_SC1200 is not set # CONFIG_PATA_SERVERWORKS is not set # CONFIG_PATA_PDC2027X is not set # CONFIG_PATA_SIL680 is not set # CONFIG_PATA_SIS is not set # CONFIG_PATA_VIA is not set # CONFIG_PATA_WINBOND is not set # CONFIG_PATA_PLATFORM is not set # CONFIG_PATA_SCH is not set # CONFIG_MD is not set # CONFIG_FUSION is not set # # IEEE 1394 (FireWire) support # # # Enable only one of the two stacks, unless you know what you are doing # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y # CONFIG_NETDEVICES_MULTIQUEUE is not set # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # CONFIG_VETH is not set # CONFIG_ARCNET is not set # CONFIG_PHYLIB is not set CONFIG_NET_ETHERNET=y # CONFIG_MII is not set # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_CASSINI is not set # CONFIG_NET_VENDOR_3COM is not set # CONFIG_NET_TULIP is not set # CONFIG_HP100 is not set CONFIG_IBM_NEW_EMAC=y CONFIG_IBM_NEW_EMAC_RXB=256 CONFIG_IBM_NEW_EMAC_TXB=256 CONFIG_IBM_NEW_EMAC_POLL_WEIGHT=32 CONFIG_IBM_NEW_EMAC_RX_COPY_THRESHOLD=256 CONFIG_IBM_NEW_EMAC_RX_SKB_HEADROOM=0 # CONFIG_IBM_NEW_EMAC_DEBUG is not set CONFIG_IBM_NEW_EMAC_ZMII=y CONFIG_IBM_NEW_EMAC_RGMII=y CONFIG_IBM_NEW_EMAC_TAH=y CONFIG_IBM_NEW_EMAC_EMAC4=y # CONFIG_NET_PCI is not set # CONFIG_B44 is not set # CONFIG_NETDEV_1000 is not set # CONFIG_NETDEV_10000 is not set # CONFIG_TR is not set # # Wireless LAN # # CONFIG_WLAN_PRE80211 is not set # CONFIG_WLAN_80211 is not set # CONFIG_IWLWIFI_LEDS is not set # # USB Network Adapters # # CONFIG_USB_CATC is not set # CONFIG_USB_KAWETH is not set # CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set # CONFIG_NET_FC is not set # CONFIG_NETCONSOLE is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set # CONFIG_ISDN is not set # CONFIG_PHONE is not set # # Input device support # # CONFIG_INPUT is not set # # Hardware I/O ports # # CONFIG_SERIO is not set # CONFIG_GAMEPORT is not set # # Character devices # # CONFIG_VT is not set CONFIG_DEVKMEM=y # CONFIG_SERIAL_NONSTANDARD is not set # CONFIG_NOZOMI is not set # # Serial drivers # CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y # CONFIG_SERIAL_8250_PCI is not set CONFIG_SERIAL_8250_NR_UARTS=4 CONFIG_SERIAL_8250_RUNTIME_UARTS=4 CONFIG_SERIAL_8250_EXTENDED=y # CONFIG_SERIAL_8250_MANY_PORTS is not set CONFIG_SERIAL_8250_SHARE_IRQ=y # CONFIG_SERIAL_8250_DETECT_IRQ is not set # CONFIG_SERIAL_8250_RSA is not set # # Non-8250 serial port support # # CONFIG_SERIAL_UARTLITE is not set CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_JSM is not set CONFIG_SERIAL_OF_PLATFORM=y CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_IPMI_HANDLER is not set # CONFIG_HW_RANDOM is not set # CONFIG_NVRAM is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set # CONFIG_RAW_DRIVER is not set # CONFIG_TCG_TPM is not set CONFIG_DEVPORT=y CONFIG_I2C=y CONFIG_I2C_BOARDINFO=y CONFIG_I2C_CHARDEV=y # # I2C Hardware Bus support # # CONFIG_I2C_ALI1535 is not set # CONFIG_I2C_ALI1563 is not set # CONFIG_I2C_ALI15X3 is not set # CONFIG_I2C_AMD756 is not set # CONFIG_I2C_AMD8111 is not set # CONFIG_I2C_I801 is not set # CONFIG_I2C_I810 is not set # CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_IBM_IIC is not set # CONFIG_I2C_MPC is not set # CONFIG_I2C_MPC8260 is not set # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_OCORES is not set # CONFIG_I2C_PARPORT_LIGHT is not set # CONFIG_I2C_PROSAVAGE is not set # CONFIG_I2C_SAVAGE4 is not set # CONFIG_I2C_SIMTEC is not set # CONFIG_I2C_SIS5595 is not set # CONFIG_I2C_SIS630 is not set # CONFIG_I2C_SIS96X is not set # CONFIG_I2C_TAOS_EVM is not set # CONFIG_I2C_STUB is not set # CONFIG_I2C_TINY_USB is not set # CONFIG_I2C_VIA is not set # CONFIG_I2C_VIAPRO is not set # CONFIG_I2C_VOODOO3 is not set # CONFIG_I2C_PCA_PLATFORM is not set # # Miscellaneous I2C Chip support # # CONFIG_SENSORS_24C01A is not set # CONFIG_SENSORS_AD7416 is not set # CONFIG_DS1682 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_MAX6900 is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCF8591 is not set # CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set # CONFIG_W1 is not set # CONFIG_POWER_SUPPLY is not set CONFIG_HWMON=y # CONFIG_HWMON_VID is not set CONFIG_SENSORS_AD7414=y # CONFIG_SENSORS_AD7418 is not set # CONFIG_SENSORS_ADM1021 is not set # CONFIG_SENSORS_ADM1025 is not set # CONFIG_SENSORS_ADM1026 is not set # CONFIG_SENSORS_ADM1029 is not set # CONFIG_SENSORS_ADM1031 is not set # CONFIG_SENSORS_ADM9240 is not set # CONFIG_SENSORS_ADT7470 is not set # CONFIG_SENSORS_ADT7473 is not set # CONFIG_SENSORS_ATXP1 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_I5K_AMB is not set # CONFIG_SENSORS_F71805F is not set # CONFIG_SENSORS_FM75 is not set # CONFIG_SENSORS_F71882FG is not set # CONFIG_SENSORS_F75375S is not set # CONFIG_SENSORS_GL518SM is not set # CONFIG_SENSORS_GL520SM is not set # CONFIG_SENSORS_IT87 is not set # CONFIG_SENSORS_LM63 is not set # CONFIG_SENSORS_LM75 is not set # CONFIG_SENSORS_LM77 is not set # CONFIG_SENSORS_LM78 is not set # CONFIG_SENSORS_LM80 is not set # CONFIG_SENSORS_LM83 is not set # CONFIG_SENSORS_LM85 is not set # CONFIG_SENSORS_LM87 is not set # CONFIG_SENSORS_LM90 is not set # CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_LM93 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_MAX6650 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_PC87427 is not set # CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_DME1737 is not set # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_SMSC47M192 is not set # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1115 is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set # CONFIG_SENSORS_W83781D is not set # CONFIG_SENSORS_W83791D is not set # CONFIG_SENSORS_W83792D is not set # CONFIG_SENSORS_W83793 is not set # CONFIG_SENSORS_W83L785TS is not set # CONFIG_SENSORS_W83L786NG is not set # CONFIG_SENSORS_W83627HF is not set # CONFIG_SENSORS_W83627EHF is not set # CONFIG_HWMON_DEBUG_CHIP is not set # CONFIG_THERMAL is not set # CONFIG_THERMAL_HWMON is not set # CONFIG_WATCHDOG is not set # # Sonics Silicon Backplane # CONFIG_SSB_POSSIBLE=y # CONFIG_SSB is not set # # Multifunction device drivers # # CONFIG_MFD_SM501 is not set # CONFIG_HTC_PASIC3 is not set # # Multimedia devices # # # Multimedia core support # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set # CONFIG_VIDEO_MEDIA is not set # # Multimedia drivers # CONFIG_DAB=y # CONFIG_USB_DABUSB is not set # # Graphics support # # CONFIG_AGP is not set # CONFIG_DRM is not set # CONFIG_VGASTATE is not set CONFIG_VIDEO_OUTPUT_CONTROL=m # CONFIG_FB is not set # CONFIG_BACKLIGHT_LCD_SUPPORT is not set # # Display device support # # CONFIG_DISPLAY_SUPPORT is not set # # Sound # # CONFIG_SOUND is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB_ARCH_HAS_EHCI=y CONFIG_USB=y # CONFIG_USB_DEBUG is not set # CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set # # Miscellaneous USB options # # CONFIG_USB_DEVICEFS is not set CONFIG_USB_DEVICE_CLASS=y # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_OTG is not set # CONFIG_USB_OTG_WHITELIST is not set # CONFIG_USB_OTG_BLACKLIST_HUB is not set # # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set # CONFIG_USB_EHCI_BIG_ENDIAN_DESC is not set CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set # CONFIG_USB_OHCI_HCD is not set # CONFIG_USB_UHCI_HCD is not set # CONFIG_USB_SL811_HCD is not set # CONFIG_USB_R8A66597_HCD is not set # # USB Device Class drivers # # CONFIG_USB_ACM is not set # CONFIG_USB_PRINTER is not set # CONFIG_USB_WDM is not set # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' # # # may also be needed; see USB_STORAGE Help for more information # # CONFIG_USB_STORAGE is not set # CONFIG_USB_LIBUSUAL is not set # # USB Imaging devices # # CONFIG_USB_MDC800 is not set # CONFIG_USB_MICROTEK is not set CONFIG_USB_MON=y # # USB port drivers # # CONFIG_USB_SERIAL is not set # # USB Miscellaneous drivers # # CONFIG_USB_EMI62 is not set # CONFIG_USB_EMI26 is not set # CONFIG_USB_ADUTUX is not set # CONFIG_USB_AUERSWALD is not set # CONFIG_USB_RIO500 is not set # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_BERRY_CHARGE is not set # CONFIG_USB_LED is not set # CONFIG_USB_CYPRESS_CY7C63 is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGET is not set # CONFIG_USB_IDMOUSE is not set # CONFIG_USB_FTDI_ELAN is not set # CONFIG_USB_APPLEDISPLAY is not set # CONFIG_USB_SISUSBVGA is not set # CONFIG_USB_LD is not set # CONFIG_USB_TRANCEVIBRATOR is not set # CONFIG_USB_IOWARRIOR is not set # CONFIG_USB_ISIGHTFW is not set # CONFIG_USB_GADGET is not set # CONFIG_MMC is not set # CONFIG_MEMSTICK is not set # CONFIG_NEW_LEDS is not set # CONFIG_ACCESSIBILITY is not set # CONFIG_INFINIBAND is not set # CONFIG_EDAC is not set CONFIG_RTC_LIB=y CONFIG_RTC_CLASS=y CONFIG_RTC_HCTOSYS=y CONFIG_RTC_HCTOSYS_DEVICE="rtc0" # CONFIG_RTC_DEBUG is not set # # RTC interfaces # CONFIG_RTC_INTF_SYSFS=y CONFIG_RTC_INTF_PROC=y CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_INTF_DEV_UIE_EMUL is not set # CONFIG_RTC_DRV_TEST is not set # # I2C RTC drivers # # CONFIG_RTC_DRV_DS1307 is not set # CONFIG_RTC_DRV_DS1374 is not set # CONFIG_RTC_DRV_DS1672 is not set # CONFIG_RTC_DRV_MAX6900 is not set # CONFIG_RTC_DRV_RS5C372 is not set # CONFIG_RTC_DRV_ISL1208 is not set # CONFIG_RTC_DRV_X1205 is not set # CONFIG_RTC_DRV_PCF8563 is not set # CONFIG_RTC_DRV_PCF8583 is not set CONFIG_RTC_DRV_M41T80=y # CONFIG_RTC_DRV_M41T80_WDT is not set # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # # SPI RTC drivers # # # Platform RTC drivers # # CONFIG_RTC_DRV_CMOS is not set # CONFIG_RTC_DRV_DS1511 is not set # CONFIG_RTC_DRV_DS1553 is not set # CONFIG_RTC_DRV_DS1742 is not set # CONFIG_RTC_DRV_STK17TA8 is not set # CONFIG_RTC_DRV_M48T86 is not set # CONFIG_RTC_DRV_M48T59 is not set # CONFIG_RTC_DRV_V3020 is not set # # on-CPU RTC drivers # # CONFIG_RTC_DRV_PPC is not set # CONFIG_DMADEVICES is not set # CONFIG_UIO is not set # # File systems # CONFIG_EXT2_FS=y # CONFIG_EXT2_FS_XATTR is not set # CONFIG_EXT2_FS_XIP is not set CONFIG_EXT3_FS=m CONFIG_EXT3_FS_XATTR=y # CONFIG_EXT3_FS_POSIX_ACL is not set # CONFIG_EXT3_FS_SECURITY is not set # CONFIG_EXT4DEV_FS is not set CONFIG_JBD=m # CONFIG_JBD_DEBUG is not set CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set # CONFIG_XFS_FS is not set # CONFIG_OCFS2_FS is not set CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_FUSE_FS is not set # # CD-ROM/DVD Filesystems # # CONFIG_ISO9660_FS is not set # CONFIG_UDF_FS is not set # # DOS/FAT/NT Filesystems # CONFIG_FAT_FS=y # CONFIG_MSDOS_FS is not set CONFIG_VFAT_FS=y CONFIG_FAT_DEFAULT_CODEPAGE=437 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" # CONFIG_NTFS_FS is not set # # Pseudo filesystems # CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_PROC_SYSCTL=y CONFIG_SYSFS=y CONFIG_TMPFS=y # CONFIG_TMPFS_POSIX_ACL is not set # CONFIG_HUGETLB_PAGE is not set # CONFIG_CONFIGFS_FS is not set # # Layered filesystems # CONFIG_UNION_FS=y # CONFIG_UNION_FS_XATTR is not set # CONFIG_UNION_FS_DEBUG is not set # # Miscellaneous filesystems # # CONFIG_ADFS_FS is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set # CONFIG_HFSPLUS_FS is not set # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set CONFIG_JFFS2_FS=y CONFIG_JFFS2_FS_DEBUG=0 CONFIG_JFFS2_FS_WRITEBUFFER=y # CONFIG_JFFS2_FS_WBUF_VERIFY is not set # CONFIG_JFFS2_SUMMARY is not set # CONFIG_JFFS2_FS_XATTR is not set # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set CONFIG_JFFS2_ZLIB=y # CONFIG_JFFS2_LZO is not set CONFIG_JFFS2_RTIME=y # CONFIG_JFFS2_RUBIN is not set CONFIG_CRAMFS=y # CONFIG_VXFS_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set # CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set # CONFIG_NFS_V4 is not set # CONFIG_NFSD is not set CONFIG_ROOT_NFS=y CONFIG_LOCKD=y CONFIG_LOCKD_V4=y CONFIG_NFS_COMMON=y CONFIG_SUNRPC=y # CONFIG_SUNRPC_BIND34 is not set # CONFIG_RPCSEC_GSS_KRB5 is not set # CONFIG_RPCSEC_GSS_SPKM3 is not set # CONFIG_SMB_FS is not set # CONFIG_CIFS is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set # # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" CONFIG_NLS_CODEPAGE_437=y # CONFIG_NLS_CODEPAGE_737 is not set # CONFIG_NLS_CODEPAGE_775 is not set CONFIG_NLS_CODEPAGE_850=y # CONFIG_NLS_CODEPAGE_852 is not set # CONFIG_NLS_CODEPAGE_855 is not set # CONFIG_NLS_CODEPAGE_857 is not set # CONFIG_NLS_CODEPAGE_860 is not set # CONFIG_NLS_CODEPAGE_861 is not set # CONFIG_NLS_CODEPAGE_862 is not set # CONFIG_NLS_CODEPAGE_863 is not set # CONFIG_NLS_CODEPAGE_864 is not set # CONFIG_NLS_CODEPAGE_865 is not set # CONFIG_NLS_CODEPAGE_866 is not set # CONFIG_NLS_CODEPAGE_869 is not set # CONFIG_NLS_CODEPAGE_936 is not set # CONFIG_NLS_CODEPAGE_950 is not set # CONFIG_NLS_CODEPAGE_932 is not set # CONFIG_NLS_CODEPAGE_949 is not set # CONFIG_NLS_CODEPAGE_874 is not set # CONFIG_NLS_ISO8859_8 is not set # CONFIG_NLS_CODEPAGE_1250 is not set # CONFIG_NLS_CODEPAGE_1251 is not set CONFIG_NLS_ASCII=y CONFIG_NLS_ISO8859_1=y # CONFIG_NLS_ISO8859_2 is not set # CONFIG_NLS_ISO8859_3 is not set # CONFIG_NLS_ISO8859_4 is not set # CONFIG_NLS_ISO8859_5 is not set # CONFIG_NLS_ISO8859_6 is not set # CONFIG_NLS_ISO8859_7 is not set # CONFIG_NLS_ISO8859_9 is not set # CONFIG_NLS_ISO8859_13 is not set # CONFIG_NLS_ISO8859_14 is not set # CONFIG_NLS_ISO8859_15 is not set # CONFIG_NLS_KOI8_R is not set # CONFIG_NLS_KOI8_U is not set CONFIG_NLS_UTF8=y # CONFIG_DLM is not set # # Library routines # CONFIG_BITREVERSE=y # CONFIG_GENERIC_FIND_FIRST_BIT is not set # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set # CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y # CONFIG_CRC7 is not set # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y CONFIG_PLIST=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y # # Kernel hacking # # CONFIG_PRINTK_TIME is not set CONFIG_ENABLE_WARN_DEPRECATED=y CONFIG_ENABLE_MUST_CHECK=y CONFIG_FRAME_WARN=1024 CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set CONFIG_DEBUG_FS=y # CONFIG_HEADERS_CHECK is not set # CONFIG_IPIPE_DEBUG is not set # CONFIG_DEBUG_KERNEL is not set # CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set # CONFIG_DEBUG_BUGVERBOSE is not set # CONFIG_SAMPLES is not set # CONFIG_IRQSTACKS is not set # CONFIG_VIRQ_DEBUG is not set # CONFIG_PPC_EARLY_DEBUG is not set # # Security options # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set # CONFIG_SECURITY_FILE_CAPABILITIES is not set # CONFIG_CRYPTO is not set # CONFIG_PPC_CLOCK is not set # CONFIG_VIRTUALIZATION is not set ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [Xenomai-help] Reducing Kernel Mode Interrupt Latency 2008-10-28 23:15 ` Henry Bausley @ 2008-11-07 12:13 ` Philippe Gerum 0 siblings, 0 replies; 12+ messages in thread From: Philippe Gerum @ 2008-11-07 12:13 UTC (permalink / raw) To: Henry Bausley; +Cc: xenomai Henry Bausley wrote: > We have a 2.2kHz clock signal that triggers an external interrupt. In > the ISR we write to an output. We measure the time between the clock > signal that is generating the interrupt and the output being set in the > ISR using a LeCroy 6100A oscilloscope. > > What we do to stress the system is continuously do printf's > simultaneously to three telnet sessions so we can see how the system > will perform under heavy Ethernet traffic. If we don't stress the > system with the printf's the interrupt jitter is reduced. > > The test are performed identically with RT-Linux and Xenomai with > virtually identical source code, just a few #ifdef's to accommodate the > differences in the two api's. > > I am using Xeno 2.4.5 w/ Kernel 2.6.26 powerpc, gcc 4.2 w/ I-pipe 2.2-04 > and added the patch you posted for the issue with cascaded UIC. > > I am running the yosemite 440EP based hardware @ 533Mhz and the > canyonlands 460EX based hardware @ 800Mhz. I don't have any sequoia > 440EPX hardware. > > My hardware is custom, the 440EP version is only different in that we > used a larger CPLD for some of our custom hardware. The 460EX based > hardware also uses a larger CPLD for our custom hardware, but in > addition also has ECC memory. > > /proc/xenomai/latency is at 4001 > > I attached the config file if that helps. > I have released the first round of optimizations for the powerpc port, based on faster arithmetics for ns/timebase conversions, a few shortened paths in the interrupt pipeline, and unmasked context switch support. In case you want to give it a try, it is available from our development trunk. You will need to upgrade the I-pipe support to 2.3-00 to enable all the optimizations. The result I get here on a Yosemite in test conditions similar to yours gives a latency figure now < 19 us. Note: this is only a 6 hours test, under interrupt flood and continuous process creation, so this result remains to be validated. Hardware: CPU: AMCC PowerPC 440EP Rev. B at 533.333 MHz (PLB=133, OPB=66, EBC=66 MHz) Bootstrap Option H - Boot ROM Location I2C (Addr 0x52) Internal PCI arbiter enabled, PCI async ext clock used 32 kB I-Cache 32 kB D-Cache Board: Yosemite - AMCC PPC440EP Evaluation Board, Rev. 9, PCI=66 MHz Software: The test used the klatency program, with a 2.2Khz period. The latency calibration was set to 0, so that there was no attempt to compensate for the intrinsic latency of the hw/sw combo using anticipated timer shots: # echo 0 > /proc/xenomai/latency # insmod xeno_klat.ko period=454 # /usr/xenomai/bin/klatency In any case, I'd be interested to know whether those results are confirmed on your setup as well. -- Philippe. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [Xenomai-help] Need some help getting past an 2008-10-16 12:52 [Xenomai-help] Need some help getting past an ken barnett 2008-10-16 12:58 ` Gilles Chanteperdrix 2008-10-21 16:12 ` [Xenomai-help] Reducing Kernel Mode Interrupt Latency Henry Bausley @ 2008-10-21 20:50 ` Gilles Chanteperdrix 2 siblings, 0 replies; 12+ messages in thread From: Gilles Chanteperdrix @ 2008-10-21 20:50 UTC (permalink / raw) To: ken barnett; +Cc: xenomai ken barnett wrote: > Hope you can help. > > My configuration is as follows: > PXA25xx ADS card w/ NO PCI bridge > Linux-2.6.24.5 kernel > Xenomai 2.4.5 stable > > The Xenomai port to the kernel is as follows: > > ./prepare-kernel.sh linux=../../linux-2.6.24.5 > --adeos=adeos-ipipe-2.6.24-arm-1.9-00.patch > --adeos=adeos-ipipe-2.6.24-arm-1.9-01.patch --arch=arm > > ./xenomai-2.4.5/scripts/prepare-kernel.sh --linux=linux-2.6.24.5 > --adeos=./xenomai-2.4.5/ksrc/arch/arm/patches/ > adeos-ipipe-2.6.24-arm-1.9-01.patch > > I used 2 patches but have tried to use either/or with the > same indications. > > configure CC=arm-linux-gcc --enable-arm-eabi > --prefix=/home/dvdb-lite/rootfs/usr/xenomai --host=arm-linux > --enable-arm-arch=pxa > > See attached for the output log. > > Step 1: > Looking at post from July 05, 2008 - 12:26: it states to turn on full debug to > get the best output so that output file is attached also as debug1.log > > Step 2 > Then it stated to turn off Xenomai all together: > The log looks the same but is also attached as debug2.log > > Step 3 > Turn off ipipe altogether > The kernel/card is back to working. > > Hop you can help, Could you try the latest patch for 2.6.26? -- Gilles. ^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2008-11-07 12:13 UTC | newest] Thread overview: 12+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2008-10-16 12:52 [Xenomai-help] Need some help getting past an ken barnett 2008-10-16 12:58 ` Gilles Chanteperdrix 2008-10-16 13:40 ` [Xenomai-help] Unhandled irq 9 ken barnett 2008-10-21 16:12 ` [Xenomai-help] Reducing Kernel Mode Interrupt Latency Henry Bausley 2008-10-21 16:19 ` Gilles Chanteperdrix 2008-10-21 16:22 ` Philippe Gerum 2008-10-21 21:00 ` Alexis Berlemont 2008-10-22 7:02 ` Wolfgang Grandegger 2008-10-27 15:08 ` Philippe Gerum 2008-10-28 23:15 ` Henry Bausley 2008-11-07 12:13 ` Philippe Gerum 2008-10-21 20:50 ` [Xenomai-help] Need some help getting past an Gilles Chanteperdrix
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