[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v2 06/15] xen/arm: move gic lock out of gic data structure
From: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx> spinlock is used across generic and GIC low level functions. Move this lock out of gic data. This helps to separate generic and low level functions later. Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx> --- xen/arch/arm/gic.c | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/xen/arch/arm/gic.c b/xen/arch/arm/gic.c index 9f03135..77243cb 100644 --- a/xen/arch/arm/gic.c +++ b/xen/arch/arm/gic.c @@ -50,9 +50,9 @@ static struct { unsigned int lines; /* Number of interrupts (SPIs + PPIs + SGIs) */ struct dt_irq maintenance; /* IRQ maintenance */ unsigned int cpus; - spinlock_t lock; } gic; +static spinlock_t gic_lock; static irq_desc_t irq_desc[NR_IRQS]; static DEFINE_PER_CPU(irq_desc_t[NR_LOCAL_IRQS], local_irq_desc); static DEFINE_PER_CPU(uint64_t, lr_mask); @@ -231,12 +231,12 @@ static void gic_irq_enable(struct irq_desc *desc) unsigned long flags; spin_lock_irqsave(&desc->lock, flags); - spin_lock(&gic.lock); + spin_lock(&gic_lock); desc->status &= ~IRQ_DISABLED; dsb(sy); /* Enable routing */ gic_hw_ops->enable_irq(irq); - spin_unlock(&gic.lock); + spin_unlock(&gic_lock); spin_unlock_irqrestore(&desc->lock, flags); } @@ -246,11 +246,11 @@ static void gic_irq_disable(struct irq_desc *desc) unsigned long flags; spin_lock_irqsave(&desc->lock, flags); - spin_lock(&gic.lock); + spin_lock(&gic_lock); /* Disable routing */ gic_hw_ops->disable_irq(irq); desc->status |= IRQ_DISABLED; - spin_unlock(&gic.lock); + spin_unlock(&gic_lock); spin_unlock_irqrestore(&desc->lock, flags); } @@ -315,7 +315,7 @@ static hw_irq_controller gic_guest_irq_type = { }; /* - * - needs to be called with gic.lock held + * - needs to be called with gic_lock held * - needs to be called with a valid cpu_mask, ie each cpu in the mask has * already called gic_cpu_init */ @@ -373,9 +373,9 @@ static int gic_route_irq(unsigned int irq, bool_t level, desc->handler = &gic_host_irq_type; - spin_lock(&gic.lock); + spin_lock(&gic_lock); gic_set_irq_properties(irq, level, cpu_mask, priority); - spin_unlock(&gic.lock); + spin_unlock(&gic_lock); spin_unlock_irqrestore(&desc->lock, flags); return 0; @@ -567,15 +567,15 @@ void __init gic_init(void) set_fixmap(FIXMAP_GICH, gic.hbase >> PAGE_SHIFT, DEV_SHARED); /* Global settings: interrupt distributor */ - spin_lock_init(&gic.lock); - spin_lock(&gic.lock); + spin_lock_init(&gic_lock); + spin_lock(&gic_lock); gic_dist_init(); gic_cpu_init(); gic_hyp_init(); register_gic_ops(&gic_ops); - spin_unlock(&gic.lock); + spin_unlock(&gic_lock); } static void gic_secondary_cpu_init(void) @@ -636,9 +636,9 @@ void smp_send_state_dump(unsigned int cpu) /* Set up the per-CPU parts of the GIC for a secondary CPU */ void __cpuinit gic_init_secondary_cpu(void) { - spin_lock(&gic.lock); + spin_lock(&gic_lock); gic_hw_ops->secondary_init(); - spin_unlock(&gic.lock); + spin_unlock(&gic_lock); } /* Shut down the per-CPU GIC interface */ @@ -652,9 +652,9 @@ void gic_disable_cpu(void) { ASSERT(!local_irq_is_enabled()); - spin_lock(&gic.lock); + spin_lock(&gic_lock); gic_hw_ops->disable_interface(); - spin_unlock(&gic.lock); + spin_unlock(&gic_lock); } void gic_route_ppis(void) @@ -1020,7 +1020,7 @@ int gic_route_irq_to_guest(struct domain *d, const struct dt_irq *irq, action->free_on_release = 1; spin_lock_irqsave(&desc->lock, flags); - spin_lock(&gic.lock); + spin_lock(&gic_lock); desc->handler = &gic_guest_irq_type; desc->status |= IRQ_GUEST; @@ -1041,7 +1041,7 @@ int gic_route_irq_to_guest(struct domain *d, const struct dt_irq *irq, p->desc = desc; out: - spin_unlock(&gic.lock); + spin_unlock(&gic_lock); spin_unlock_irqrestore(&desc->lock, flags); return retval; } -- 1.7.9.5 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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