powerpc/mpic: Fix irq distribution problem when MPIC_SINGLE_DEST_CPU

For the mpic with a flag MPIC_SINGLE_DEST_CPU, only one bit should be set in interrupt destination registers. The code is applicable to 64-bit platforms as well as 32-bit.

chenhui zhao committed 13 years ago

Commit e2421141 parent 2b3f8e81 file · +2 −2Browse files

Unified · Split

arch/powerpc/sysdev/mpic.c+2−2

@@ -54,7 +54,7 @@ static DEFINE_RAW_SPINLOCK(mpic_lock); · 53 unmodified lines
54	54
55	55	#ifdef CONFIG_PPC32 /* XXX for now */
56	56	#ifdef CONFIG_IRQ_ALL_CPUS
57		−#define distribute_irqs (!(mpic->flags & MPIC_SINGLE_DEST_CPU))
	57	+#define distribute_irqs (1)
58	58	#else
59	59	#define distribute_irqs (0)
60	60	#endif
@@ -1703,7 +1703,7 @@ void mpic_setup_this_cpu(void) · 1642 unmodified lines
1703	1703	* it differently, then we should make sure we also change the default
1704	1704	* values of irq_desc[].affinity in irq.c.
1705	1705	*/
1706		− if (distribute_irqs) {
	1706	+ if (distribute_irqs && !(mpic->flags & MPIC_SINGLE_DEST_CPU)) {
1707	1707	for (i = 0; i < mpic->num_sources ; i++)
1708	1708	mpic_irq_write(i, MPIC_INFO(IRQ_DESTINATION),
1709	1709	mpic_irq_read(i, MPIC_INFO(IRQ_DESTINATION)) \| msk);