Re: [PATCH HACK] powerpc: quick hack to get a functional eHEA with hardirq preemption, eHCA is close
From: Jan-Bernd Themann <hidden>
Date: 2008-09-23 15:44:20
Also in:
linux-rt-users, linuxppc-dev, lkml
Hi, I think these are the "functional" changes that need to be included in the ibmebus driver. We'll add a RT flag in the final version to enable these changes only for RT-Linux for now. Ben, can you / your team look into the implementation of the set_irq_type functionality needed for XICS? Regards, Jan-Bernd & Christoph diff -Nurp b/arch/powerpc/kernel/ibmebus.c a/arch/powerpc/kernel/ibmebus.c
--- b/arch/powerpc/kernel/ibmebus.c 2008-09-22 00:29:55.000000000 +0200
+++ a/arch/powerpc/kernel/ibmebus.c 2008-09-23 12:04:53.000000000 +0200@@ -216,12 +216,16 @@ int ibmebus_request_irq(u32 ist, irq_han unsigned long irq_flags, const char *devname, void *dev_id) { + int ret; unsigned int irq = irq_create_mapping(NULL, ist); if (irq == NO_IRQ) return -EINVAL; - return request_irq(irq, handler, irq_flags, devname, dev_id); + ret = request_irq(irq, handler, irq_flags, devname, dev_id); + set_irq_type(irq, IRQ_TYPE_EDGE_RISING); + + return ret; } EXPORT_SYMBOL(ibmebus_request_irq);