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MIPS: SB1480: Convert IRQ controller lock to raw spinlock.
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle committed Feb 27, 2010
1 parent 5772f6d commit ed14bbb
Showing 1 changed file with 7 additions and 7 deletions.
14 changes: 7 additions & 7 deletions arch/mips/sibyte/bcm1480/irq.c
Original file line number Diff line number Diff line change
Expand Up @@ -73,14 +73,14 @@ static struct irq_chip bcm1480_irq_type = {
/* Store the CPU id (not the logical number) */
int bcm1480_irq_owner[BCM1480_NR_IRQS];

static DEFINE_SPINLOCK(bcm1480_imr_lock);
static DEFINE_RAW_SPINLOCK(bcm1480_imr_lock);

void bcm1480_mask_irq(int cpu, int irq)
{
unsigned long flags, hl_spacing;
u64 cur_ints;

spin_lock_irqsave(&bcm1480_imr_lock, flags);
raw_spin_lock_irqsave(&bcm1480_imr_lock, flags);
hl_spacing = 0;
if ((irq >= BCM1480_NR_IRQS_HALF) && (irq <= BCM1480_NR_IRQS)) {
hl_spacing = BCM1480_IMR_HL_SPACING;
Expand All @@ -89,15 +89,15 @@ void bcm1480_mask_irq(int cpu, int irq)
cur_ints = ____raw_readq(IOADDR(A_BCM1480_IMR_MAPPER(cpu) + R_BCM1480_IMR_INTERRUPT_MASK_H + hl_spacing));
cur_ints |= (((u64) 1) << irq);
____raw_writeq(cur_ints, IOADDR(A_BCM1480_IMR_MAPPER(cpu) + R_BCM1480_IMR_INTERRUPT_MASK_H + hl_spacing));
spin_unlock_irqrestore(&bcm1480_imr_lock, flags);
raw_spin_unlock_irqrestore(&bcm1480_imr_lock, flags);
}

void bcm1480_unmask_irq(int cpu, int irq)
{
unsigned long flags, hl_spacing;
u64 cur_ints;

spin_lock_irqsave(&bcm1480_imr_lock, flags);
raw_spin_lock_irqsave(&bcm1480_imr_lock, flags);
hl_spacing = 0;
if ((irq >= BCM1480_NR_IRQS_HALF) && (irq <= BCM1480_NR_IRQS)) {
hl_spacing = BCM1480_IMR_HL_SPACING;
Expand All @@ -106,7 +106,7 @@ void bcm1480_unmask_irq(int cpu, int irq)
cur_ints = ____raw_readq(IOADDR(A_BCM1480_IMR_MAPPER(cpu) + R_BCM1480_IMR_INTERRUPT_MASK_H + hl_spacing));
cur_ints &= ~(((u64) 1) << irq);
____raw_writeq(cur_ints, IOADDR(A_BCM1480_IMR_MAPPER(cpu) + R_BCM1480_IMR_INTERRUPT_MASK_H + hl_spacing));
spin_unlock_irqrestore(&bcm1480_imr_lock, flags);
raw_spin_unlock_irqrestore(&bcm1480_imr_lock, flags);
}

#ifdef CONFIG_SMP
Expand All @@ -123,7 +123,7 @@ static int bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask)
cpu = cpu_logical_map(i);

/* Protect against other affinity changers and IMR manipulation */
spin_lock_irqsave(&bcm1480_imr_lock, flags);
raw_spin_lock_irqsave(&bcm1480_imr_lock, flags);

/* Swizzle each CPU's IMR (but leave the IP selection alone) */
old_cpu = bcm1480_irq_owner[irq];
Expand All @@ -148,7 +148,7 @@ static int bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask)
____raw_writeq(cur_ints, IOADDR(A_BCM1480_IMR_MAPPER(cpu) + R_BCM1480_IMR_INTERRUPT_MASK_H + (k*BCM1480_IMR_HL_SPACING)));
}
}
spin_unlock_irqrestore(&bcm1480_imr_lock, flags);
raw_spin_unlock_irqrestore(&bcm1480_imr_lock, flags);

return 0;
}
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