I'm probably not much help but something similar was on the list a while ago:
https://xenomai.org/pipermail/xenomai/2017-November/038014.html On Thu, Jun 7, 2018 at 11:55 AM, Yan, Hongliang <archer.hl....@intel.com> wrote: > Hi All, > I am trying to enable pinctrl-intel.c GPIO interrupt as RTDM interrupt. I > use rtdm_irq_request to replace devm_request_irq in probe function. > code is as following: > ======================================================================= > #if 1 > if ((ret = rtdm_irq_request(&irq_rtdm, > irq, handler_interruption, > 0, > "test", NULL)) != 0) { > printk("rtdm request error\n"); > } > > #else > ret = devm_request_irq(pctrl->dev, irq, intel_gpio_irq, IRQF_SHARED, > dev_name(pctrl->dev), pctrl); > if (ret) { > dev_err(pctrl->dev, "failed to request interrupt\n"); > goto fail; > } > #endif > ========================================================================= > I check /proc/xenomai/irq, it shows GPIO interrupt has been registered as > XENOMAI interrupt. > ========================================================================= > [root@localhost devices]# cat /proc/xenomai/irq > IRQ CPU0 CPU1 CPU2 CPU3 > 14: 0 0 0 0 test > 4352: 0 0 0 0 [sync] > 4353: 0 0 0 1 [reschedule] > 4354: 1007738 987012 1007340 1082939 [timer/0] > 4355: 1 1 0 1 [timer-ipi] > 4419: 0 0 0 0 [virtual] > =========================================================================== > But once I trigger the GPIO interrupt, the interrupt handler can't be called. > Instead, it shows: > <3>[ 156.957511] DMAR: DRHD: handling fault status reg 2 > <3>[ 156.957541] DMAR: INTR-REMAP: Request device [[f0:1f.0] fault index 0 > <3>[ 156.957541] INTR-REMAP:[fault reason 37] Blocked a compatibility format > interrupt request > > I also list lspci -v, there is no device named f0:1f.0. > Could someone help me with this? Did I miss something when request RTDM > interrupt? > > Best Regards, > > Archer Yan > _______________________________________________ > Xenomai mailing list > Xenomai@xenomai.org > https://xenomai.org/mailman/listinfo/xenomai _______________________________________________ Xenomai mailing list Xenomai@xenomai.org https://xenomai.org/mailman/listinfo/xenomai
