ARM: 7061/1: gic: convert logical CPU numbers into physical numbers

The GIC driver must convert logical CPU numbers passed in from Linux
into physical CPU numbers that are understood by the hardware.

This patch uses the new cpu_logical_map macro for performing the
conversion inside the GIC driver.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
index 3227ca9..666b278 100644 (file)
--- a/arch/arm/common/gic.c
+++ b/arch/arm/common/gic.c
@@ -180,7 +180,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
                return -EINVAL;
 
        mask = 0xff << shift;
-       bit = 1 << (cpu + shift);
+       bit = 1 << (cpu_logical_map(cpu) + shift);
 
        spin_lock(&irq_controller_lock);
        val = readl_relaxed(reg) & ~mask;
@@ -259,9 +259,15 @@ static void __init gic_dist_init(struct gic_chip_data *gic,
        unsigned int irq_start)
 {
        unsigned int gic_irqs, irq_limit, i;
+       u32 cpumask;
        void __iomem *base = gic->dist_base;
-       u32 cpumask = 1 << smp_processor_id();
+       u32 cpu = 0;
 
+#ifdef CONFIG_SMP
+       cpu = cpu_logical_map(smp_processor_id());
+#endif
+
+       cpumask = 1 << cpu;
        cpumask |= cpumask << 8;
        cpumask |= cpumask << 16;
 
@@ -382,7 +388,12 @@ void __cpuinit gic_enable_ppi(unsigned int irq)
 #ifdef CONFIG_SMP
 void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
 {
-       unsigned long map = *cpus_addr(*mask);
+       int cpu;
+       unsigned long map = 0;
+
+       /* Convert our logical CPU mask into a physical one. */
+       for_each_cpu(cpu, mask)
+               map |= 1 << cpu_logical_map(cpu);
 
        /*
         * Ensure that stores to Normal memory are visible to the