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authorJames Hogan <james.hogan@imgtec.com>2015-01-29 11:14:08 (GMT)
committerRalf Baechle <ralf@linux-mips.org>2015-03-31 10:04:12 (GMT)
commitb720fd8b66151a8bdf6ec1be32c338d73592ff15 (patch)
treeeaa54d5c015f9599155b5010c9b7eca051c39721 /drivers/irqchip
parent8f7ff027965619b17488141a5f39d14c850696ab (diff)
downloadlinux-b720fd8b66151a8bdf6ec1be32c338d73592ff15.tar.xz
irqchip: mips-gic: Don't treat FDC IRQ as percpu devid
Treat the Fast Debug Channel (FDC) interrupt the same as the timer and performance counter interrupts. Like them, the FDC IRQ is also per-VPE, and also doesn't use a per-CPU device ID yet. Per-CPU device IDs don't seem to work with IRQF_SHARED which is needed for compatibility with cores which don't route the FDC IRQ through the GIC. For hardware which routes FDC IRQs through the GIC this is something that could be added later. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9141/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-mips-gic.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index ef09a91..c8699ee 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -592,15 +592,20 @@ static int gic_local_irq_domain_map(struct irq_domain *d, unsigned int virq,
* of the MIPS kernel code does not use the percpu IRQ API for
* the CP0 timer and performance counter interrupts.
*/
- if (intr != GIC_LOCAL_INT_TIMER && intr != GIC_LOCAL_INT_PERFCTR) {
+ switch (intr) {
+ case GIC_LOCAL_INT_TIMER:
+ case GIC_LOCAL_INT_PERFCTR:
+ case GIC_LOCAL_INT_FDC:
+ irq_set_chip_and_handler(virq,
+ &gic_all_vpes_local_irq_controller,
+ handle_percpu_irq);
+ break;
+ default:
irq_set_chip_and_handler(virq,
&gic_local_irq_controller,
handle_percpu_devid_irq);
irq_set_percpu_devid(virq);
- } else {
- irq_set_chip_and_handler(virq,
- &gic_all_vpes_local_irq_controller,
- handle_percpu_irq);
+ break;
}
spin_lock_irqsave(&gic_lock, flags);