irqchip: mips-gic: Convert CPU numbers to VP IDs.

Make use of the mips_cm_vp_id function to convert from Linux CPU numbers
to the VP IDs used by hardware, which are not identical in all systems.
Without doing so we map interrupts to incorrect VP(E)s.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11212/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index af2f16bb8a94d3912787b1893431c97e541fc0ec..842a53d3f4ad3a2816d13b57fa12470d0c18142d 100644 (file)
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -426,7 +426,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask,
        spin_lock_irqsave(&gic_lock, flags);
 
        /* Re-route this IRQ */
-       gic_map_to_vpe(irq, cpumask_first(&tmp));
+       gic_map_to_vpe(irq, mips_cm_vp_id(cpumask_first(&tmp)));
 
        /* Update the pcpu_masks */
        for (i = 0; i < NR_CPUS; i++)
@@ -599,7 +599,7 @@ static __init void gic_ipi_init_one(unsigned int intr, int cpu,
                                      GIC_SHARED_TO_HWIRQ(intr));
        int i;
 
-       gic_map_to_vpe(intr, cpu);
+       gic_map_to_vpe(intr, mips_cm_vp_id(cpu));
        for (i = 0; i < NR_CPUS; i++)
                clear_bit(intr, pcpu_masks[i].pcpu_mask);
        set_bit(intr, pcpu_masks[cpu].pcpu_mask);