[RFC PATCH v2 2/6] hw: arm_gic: Introduce GIC_SET_PRIORITY macro

[Christoffer Dall <christoffer.dall@xxxxxxxxxx>]

To make the code slightly cleaner to look at and make the save/restore
code easier to understand, introduce this macro to set the priority of
interrupts.

Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
---
 hw/intc/arm_gic.c      |   15 ++++++++++-----
 hw/intc/gic_internal.h |    1 +
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/hw/intc/arm_gic.c b/hw/intc/arm_gic.c
index c7a24d5..7eaa55f 100644
--- a/hw/intc/arm_gic.c
+++ b/hw/intc/arm_gic.c
@@ -169,6 +169,15 @@ uint32_t gic_acknowledge_irq(GICState *s, int cpu)
     return new_irq;
 }
 
+void gic_set_priority(GICState *s, int cpu, int irq, uint8_t val)
+{
+    if (irq < GIC_INTERNAL) {
+        s->priority1[irq][cpu] = val;
+    } else {
+        s->priority2[(irq) - GIC_INTERNAL] = val;
+    }
+}
+
 void gic_complete_irq(GICState *s, int cpu, int irq)
 {
     int update = 0;
@@ -444,11 +453,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
         irq = (offset - 0x400) + GIC_BASE_IRQ;
         if (irq >= s->num_irq)
             goto bad_reg;
-        if (irq < GIC_INTERNAL) {
-            s->priority1[irq][cpu] = value;
-        } else {
-            s->priority2[irq - GIC_INTERNAL] = value;
-        }
+        gic_set_priority(s, cpu, irq, value);
     } else if (offset < 0xc00) {
         /* Interrupt CPU Target. RAZ/WI on uniprocessor GICs, with the
          * annoying exception of the 11MPCore's GIC.
diff --git a/hw/intc/gic_internal.h b/hw/intc/gic_internal.h
index b3788a8..09e7722 100644
--- a/hw/intc/gic_internal.h
+++ b/hw/intc/gic_internal.h
@@ -111,6 +111,7 @@ uint32_t gic_acknowledge_irq(GICState *s, int cpu);
 void gic_complete_irq(GICState *s, int cpu, int irq);
 void gic_update(GICState *s);
 void gic_init_irqs_and_distributor(GICState *s, int num_irq);
+void gic_set_priority(GICState *s, int cpu, int irq, uint8_t val);
 
 #define TYPE_ARM_GIC_COMMON "arm_gic_common"
 #define ARM_GIC_COMMON(obj) \
-- 
1.7.10.4

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