diff options
| author | Tim Anderson <tanderson@mvista.com> | 2009-06-17 16:21:19 -0700 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-07-03 15:45:25 +0100 |
| commit | 9306c8def6abc2dbde4ac75eb6c631606b8fc1dd (patch) | |
| tree | 4896cca4c6b27fa42e6f51d93c0a4f86b6f6fa3e | |
| parent | b53d4d1f8d522342e66f79b8b49a19835071fed4 (diff) | |
MIPS: CMP: Extend the GIC IPI interrupts beyond 32
This patch extends the GIC interrupt handling beyond the current 32 bit
range as well as extending the number of interrupts based on the number
of CPUs.
Signed-off-by: Tim Anderson <tanderson@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/include/asm/gic.h | 4 | ||||
| -rw-r--r-- | arch/mips/kernel/irq-gic.c | 15 |
2 files changed, 8 insertions, 11 deletions
diff --git a/arch/mips/include/asm/gic.h b/arch/mips/include/asm/gic.h index 954807d9d66..e8fdd92c52c 100644 --- a/arch/mips/include/asm/gic.h +++ b/arch/mips/include/asm/gic.h @@ -20,7 +20,11 @@ #define GIC_TRIG_EDGE 1 #define GIC_TRIG_LEVEL 0 +#if CONFIG_SMP +#define GIC_NUM_INTRS (24 + NR_CPUS * 2) +#else #define GIC_NUM_INTRS 32 +#endif #define MSK(n) ((1 << (n)) - 1) #define REG32(addr) (*(volatile unsigned int *) (addr)) diff --git a/arch/mips/kernel/irq-gic.c b/arch/mips/kernel/irq-gic.c index 39000f103f2..5c85e1ce049 100644 --- a/arch/mips/kernel/irq-gic.c +++ b/arch/mips/kernel/irq-gic.c @@ -107,9 +107,7 @@ static unsigned int gic_irq_startup(unsigned int irq) { pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq); irq -= _irqbase; - /* FIXME: this is wrong for !GICISWORDLITTLEENDIAN */ - GICWRITE(GIC_REG_ADDR(SHARED, (GIC_SH_SMASK_31_0_OFS + (irq / 32))), - 1 << (irq % 32)); + GIC_SET_INTR_MASK(irq, 1); return 0; } @@ -120,8 +118,7 @@ static void gic_irq_ack(unsigned int irq) #endif pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq); irq -= _irqbase; - GICWRITE(GIC_REG_ADDR(SHARED, (GIC_SH_RMASK_31_0_OFS + (irq / 32))), - 1 << (irq % 32)); + GIC_CLR_INTR_MASK(irq, 1); if (_intrmap[irq].trigtype == GIC_TRIG_EDGE) { if (!gic_wedgeb2bok) @@ -138,18 +135,14 @@ static void gic_mask_irq(unsigned int irq) { pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq); irq -= _irqbase; - /* FIXME: this is wrong for !GICISWORDLITTLEENDIAN */ - GICWRITE(GIC_REG_ADDR(SHARED, (GIC_SH_RMASK_31_0_OFS + (irq / 32))), - 1 << (irq % 32)); + GIC_CLR_INTR_MASK(irq, 1); } static void gic_unmask_irq(unsigned int irq) { pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq); irq -= _irqbase; - /* FIXME: this is wrong for !GICISWORDLITTLEENDIAN */ - GICWRITE(GIC_REG_ADDR(SHARED, (GIC_SH_SMASK_31_0_OFS + (irq / 32))), - 1 << (irq % 32)); + GIC_SET_INTR_MASK(irq, 1); } #ifdef CONFIG_SMP |