[PATCH] ppc32: fix PQ2 PCI DMA interrupt handling

The bit position in the status register corresponding to the
PCI DMA interrupt was incorrect.  Additionally, we did not
have a define for the PCI DMA interrupt.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/ppc/syslib/cpm2_pic.c

@@ -37,7 +37,7 @@ static	u_char	irq_to_siureg[] = {
 static	u_char	irq_to_siubit[] = {
 	 0, 15, 14, 13, 12, 11, 10,  9,
 	 8,  7,  6,  5,  4,  3,  2,  1,
-	 2,  1, 15, 14, 13, 12, 11, 10,
+	 2,  1,  0, 14, 13, 12, 11, 10,
 	 9,  8,  7,  6,  5,  4,  3,  0,
 	31, 30, 29, 28, 27, 26, 25, 24,
 	23, 22, 21, 20, 19, 18, 17, 16,

include/asm-powerpc/irq.h

@@ -389,6 +389,7 @@ extern u64 ppc64_interrupt_controller;
 #define	SIU_INT_TIMER4		((uint)0x0f + CPM_IRQ_OFFSET)
 #define	SIU_INT_TMCNT		((uint)0x10 + CPM_IRQ_OFFSET)
 #define	SIU_INT_PIT		((uint)0x11 + CPM_IRQ_OFFSET)
+#define	SIU_INT_PCI		((uint)0x12 + CPM_IRQ_OFFSET)
 #define	SIU_INT_IRQ1		((uint)0x13 + CPM_IRQ_OFFSET)
 #define	SIU_INT_IRQ2		((uint)0x14 + CPM_IRQ_OFFSET)
 #define	SIU_INT_IRQ3		((uint)0x15 + CPM_IRQ_OFFSET)