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| author | Ingo Molnar <mingo@elte.hu> | 2009-06-17 08:59:01 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-17 08:59:10 +0200 |
| commit | cc4949e1fdade5d063e9f8783cf0e2cc92041ce5 (patch) | |
| tree | 4023bd641bfe464efbde518fb504d6865c9df014 /arch/powerpc/sysdev/mpic.c | |
| parent | 28b4868820a56de661f54742ff91b78e12f1e582 (diff) | |
| parent | 300df7dc89cc276377fc020704e34875d5c473b6 (diff) | |
| download | talos-op-linux-cc4949e1fdade5d063e9f8783cf0e2cc92041ce5.tar.gz talos-op-linux-cc4949e1fdade5d063e9f8783cf0e2cc92041ce5.zip | |
Merge branch 'linus' into x86/urgent
Merge reason: pull in latest to fix a bug in it.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc/sysdev/mpic.c')
| -rw-r--r-- | arch/powerpc/sysdev/mpic.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 352d8c3ef526..9c3af5045495 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -613,23 +613,23 @@ static int irq_choose_cpu(unsigned int virt_irq) #define mpic_irq_to_hw(virq) ((unsigned int)irq_map[virq].hwirq) /* Find an mpic associated with a given linux interrupt */ -static struct mpic *mpic_find(unsigned int irq, unsigned int *is_ipi) +static struct mpic *mpic_find(unsigned int irq) { - unsigned int src = mpic_irq_to_hw(irq); - struct mpic *mpic; - if (irq < NUM_ISA_INTERRUPTS) return NULL; - mpic = irq_desc[irq].chip_data; + return irq_desc[irq].chip_data; +} - if (is_ipi) - *is_ipi = (src >= mpic->ipi_vecs[0] && - src <= mpic->ipi_vecs[3]); +/* Determine if the linux irq is an IPI */ +static unsigned int mpic_is_ipi(struct mpic *mpic, unsigned int irq) +{ + unsigned int src = mpic_irq_to_hw(irq); - return mpic; + return (src >= mpic->ipi_vecs[0] && src <= mpic->ipi_vecs[3]); } + /* Convert a cpu mask from logical to physical cpu numbers. */ static inline u32 mpic_physmask(u32 cpumask) { @@ -1383,8 +1383,7 @@ void __init mpic_set_serial_int(struct mpic *mpic, int enable) void mpic_irq_set_priority(unsigned int irq, unsigned int pri) { - unsigned int is_ipi; - struct mpic *mpic = mpic_find(irq, &is_ipi); + struct mpic *mpic = mpic_find(irq); unsigned int src = mpic_irq_to_hw(irq); unsigned long flags; u32 reg; @@ -1393,7 +1392,7 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri) return; spin_lock_irqsave(&mpic_lock, flags); - if (is_ipi) { + if (mpic_is_ipi(mpic, irq)) { reg = mpic_ipi_read(src - mpic->ipi_vecs[0]) & ~MPIC_VECPRI_PRIORITY_MASK; mpic_ipi_write(src - mpic->ipi_vecs[0], |
