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
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