powerpc: make iSeries use generic virtual irq mapping

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

2 files changed, 3 insertions, 25 deletions

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 4b7940693f3d..5e5ed4441c69 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -311,7 +311,6 @@ void __init init_IRQ(void)
 }
 
 #ifdef CONFIG_PPC64
-#ifndef CONFIG_PPC_ISERIES
 /*
  * Virtual IRQ mapping code, used on systems with XICS interrupt controllers.
  */
@@ -420,8 +419,6 @@ unsigned int real_irq_to_virt_slowpath(unsigned int real_irq)
 
 }
 
-#endif /* CONFIG_PPC_ISERIES */
-
 #ifdef CONFIG_IRQSTACKS
 struct thread_info *softirq_ctx[NR_CPUS];
 struct thread_info *hardirq_ctx[NR_CPUS];
diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c
index 01090e9ce0cf..a58daa153686 100644
--- a/arch/powerpc/platforms/iseries/irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -42,13 +42,6 @@
 #include "irq.h"
 #include "call_pci.h"
 
-/* This maps virtual irq numbers to real irqs */
-unsigned int virt_irq_to_real_map[NR_IRQS];
-
-/* The next available virtual irq number */
-/* Note: the pcnet32 driver assumes irq numbers < 2 aren't valid. :( */
-static int next_virtual_irq = 2;
-
 static long Pci_Interrupt_Count;
 static long Pci_Event_Count;
 
@@ -350,26 +343,14 @@ static hw_irq_controller iSeries_IRQ_handler = {
 int __init iSeries_allocate_IRQ(HvBusNumber busNumber,
                 HvSubBusNumber subBusNumber, HvAgentId deviceId)
 {
-        unsigned int realirq, virtirq;
+        int virtirq;
+        unsigned int realirq;
         u8 idsel = (deviceId >> 4);
         u8 function = deviceId & 7;
 
-        virtirq = next_virtual_irq++;
         realirq = ((busNumber - 1) << 6) + ((idsel - 1) << 3) + function;
-        virt_irq_to_real_map[virtirq] = realirq;
+        virtirq = virt_irq_create_mapping(realirq);
 
         irq_desc[virtirq].handler = &iSeries_IRQ_handler;
         return virtirq;
 }
-
-int virt_irq_create_mapping(unsigned int real_irq)
-{
-        BUG(); /* Don't call this on iSeries, yet */
-
-        return 0;
-}
-
-void virt_irq_init(void)
-{
-        return;
-}