diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 21:17:37 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 21:17:37 -0600 |
| commit | 06d8bf64ba25db42fcc60d2da2268ac22af94e77 (patch) | |
| tree | eb80eebf368957df18c2a4c0ee02897e0a9b06d2 /arch/mips/kernel/i8259.c | |
| parent | 8f68abbfd9703e58920ff07d314a48654ed0bc3b (diff) | |
| parent | 5986a2ec35836a878350c54af4bd91b1de6abc59 (diff) | |
Merge branch 'master' into for_paulus
Diffstat (limited to 'arch/mips/kernel/i8259.c')
| -rw-r--r-- | arch/mips/kernel/i8259.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c index b59a676c6d0e..b33ba6cd7f5b 100644 --- a/arch/mips/kernel/i8259.c +++ b/arch/mips/kernel/i8259.c @@ -54,9 +54,11 @@ static unsigned int cached_irq_mask = 0xffff; void disable_8259A_irq(unsigned int irq) { - unsigned int mask = 1 << irq; + unsigned int mask; unsigned long flags; + irq -= I8259A_IRQ_BASE; + mask = 1 << irq; spin_lock_irqsave(&i8259A_lock, flags); cached_irq_mask |= mask; if (irq & 8) @@ -68,9 +70,11 @@ void disable_8259A_irq(unsigned int irq) void enable_8259A_irq(unsigned int irq) { - unsigned int mask = ~(1 << irq); + unsigned int mask; unsigned long flags; + irq -= I8259A_IRQ_BASE; + mask = ~(1 << irq); spin_lock_irqsave(&i8259A_lock, flags); cached_irq_mask &= mask; if (irq & 8) @@ -82,10 +86,12 @@ void enable_8259A_irq(unsigned int irq) int i8259A_irq_pending(unsigned int irq) { - unsigned int mask = 1 << irq; + unsigned int mask; unsigned long flags; int ret; + irq -= I8259A_IRQ_BASE; + mask = 1 << irq; spin_lock_irqsave(&i8259A_lock, flags); if (irq < 8) ret = inb(PIC_MASTER_CMD) & mask; @@ -134,9 +140,11 @@ static inline int i8259A_irq_real(unsigned int irq) */ void mask_and_ack_8259A(unsigned int irq) { - unsigned int irqmask = 1 << irq; + unsigned int irqmask; unsigned long flags; + irq -= I8259A_IRQ_BASE; + irqmask = 1 << irq; spin_lock_irqsave(&i8259A_lock, flags); /* * Lightweight spurious IRQ detection. We do not want @@ -169,8 +177,8 @@ handle_real_irq: outb(0x60+irq,PIC_MASTER_CMD); /* 'Specific EOI to master */ } #ifdef CONFIG_MIPS_MT_SMTC - if (irq_hwmask[irq] & ST0_IM) - set_c0_status(irq_hwmask[irq] & ST0_IM); + if (irq_hwmask[irq] & ST0_IM) + set_c0_status(irq_hwmask[irq] & ST0_IM); #endif /* CONFIG_MIPS_MT_SMTC */ spin_unlock_irqrestore(&i8259A_lock, flags); return; @@ -322,8 +330,8 @@ void __init init_i8259_irqs (void) init_8259A(0); - for (i = 0; i < 16; i++) + for (i = I8259A_IRQ_BASE; i < I8259A_IRQ_BASE + 16; i++) set_irq_chip_and_handler(i, &i8259A_chip, handle_level_irq); - setup_irq(PIC_CASCADE_IR, &irq2); + setup_irq(I8259A_IRQ_BASE + PIC_CASCADE_IR, &irq2); } |