39 lines
1.4 KiB
Diff
39 lines
1.4 KiB
Diff
Subject: MIPS: Octeon: Mark SMP-IPI interrupt as IRQF_NO_THREAD
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From: Venkat Subbiah <venkat.subbiah@caviumnetworks.com>
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Date: Mon, 3 Oct 2011 13:31:10 -0700
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From: Venkat Subbiah <venkat.subbiah@cavium.com>
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This is to exclude it from force threading to allow RT patch set to work.
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And while on this line
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* Remove IRQF_DISABLED as as this flag is NOOP
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* Add IRQF_PERCPU as this is a per cpu interrupt.
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Signed-off-by: Venkat Subbiah <venkat.subbiah@cavium.com>
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Acked-by: David Daney <david.daney@cavium.com>
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Cc: linux-mips@linux-mips.org
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Cc: ralf@linux-mips.org
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Link: http://lkml.kernel.org/r/1317673870-10671-1-git-send-email-venkat.subbiah@caviumnetworks.com
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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arch/mips/cavium-octeon/smp.c | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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Index: linux-3.2/arch/mips/cavium-octeon/smp.c
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===================================================================
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--- linux-3.2.orig/arch/mips/cavium-octeon/smp.c
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+++ linux-3.2/arch/mips/cavium-octeon/smp.c
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@@ -207,8 +207,9 @@ void octeon_prepare_cpus(unsigned int ma
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* the other bits alone.
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*/
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cvmx_write_csr(CVMX_CIU_MBOX_CLRX(cvmx_get_core_num()), 0xffff);
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- if (request_irq(OCTEON_IRQ_MBOX0, mailbox_interrupt, IRQF_DISABLED,
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- "SMP-IPI", mailbox_interrupt)) {
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+ if (request_irq(OCTEON_IRQ_MBOX0, mailbox_interrupt,
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+ IRQF_PERCPU | IRQF_NO_THREAD, "SMP-IPI",
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+ mailbox_interrupt)) {
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panic("Cannot request_irq(OCTEON_IRQ_MBOX0)\n");
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}
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}
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