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authorChristoffer Dall <christoffer.dall@linaro.org>2013-09-12 22:18:20 -0700
committerPeter Maydell <peter.maydell@linaro.org>2014-02-08 14:50:48 +0000
commitaa7d461ae9dd79d35999f4710743cdf9dec88cef (patch)
tree8860063b9851b5f786eab320ae33283b4acb327b /hw/intc
parent40d225009efe17cad647b4b7424b77a3ace232f1 (diff)
downloadfocaccia-qemu-aa7d461ae9dd79d35999f4710743cdf9dec88cef.tar.gz
focaccia-qemu-aa7d461ae9dd79d35999f4710743cdf9dec88cef.zip
arm_gic: Support setting/getting binary point reg
Add a binary_point field to the gic emulation structure and support
setting/getting this register now when we have it.  We don't actually
support interrupt grouping yet, oh well.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/intc')
-rw-r--r--hw/intc/arm_gic.c12
-rw-r--r--hw/intc/arm_gic_common.c6
2 files changed, 13 insertions, 5 deletions
diff --git a/hw/intc/arm_gic.c b/hw/intc/arm_gic.c
index 6550292be5..5413a2482a 100644
--- a/hw/intc/arm_gic.c
+++ b/hw/intc/arm_gic.c
@@ -669,14 +669,15 @@ static uint32_t gic_cpu_read(GICState *s, int cpu, int offset)
     case 0x04: /* Priority mask */
         return s->priority_mask[cpu];
     case 0x08: /* Binary Point */
-        /* ??? Not implemented.  */
-        return 0;
+        return s->bpr[cpu];
     case 0x0c: /* Acknowledge */
         return gic_acknowledge_irq(s, cpu);
     case 0x14: /* Running Priority */
         return s->running_priority[cpu];
     case 0x18: /* Highest Pending Interrupt */
         return s->current_pending[cpu];
+    case 0x1c: /* Aliased Binary Point */
+        return s->abpr[cpu];
     default:
         qemu_log_mask(LOG_GUEST_ERROR,
                       "gic_cpu_read: Bad offset %x\n", (int)offset);
@@ -695,10 +696,15 @@ static void gic_cpu_write(GICState *s, int cpu, int offset, uint32_t value)
         s->priority_mask[cpu] = (value & 0xff);
         break;
     case 0x08: /* Binary Point */
-        /* ??? Not implemented.  */
+        s->bpr[cpu] = (value & 0x7);
         break;
     case 0x10: /* End Of Interrupt */
         return gic_complete_irq(s, cpu, value & 0x3ff);
+    case 0x1c: /* Aliased Binary Point */
+        if (s->revision >= 2) {
+            s->abpr[cpu] = (value & 0x7);
+        }
+        break;
     default:
         qemu_log_mask(LOG_GUEST_ERROR,
                       "gic_cpu_write: Bad offset %x\n", (int)offset);
diff --git a/hw/intc/arm_gic_common.c b/hw/intc/arm_gic_common.c
index 92de7f8e0d..d2d8ce1bb4 100644
--- a/hw/intc/arm_gic_common.c
+++ b/hw/intc/arm_gic_common.c
@@ -58,8 +58,8 @@ static const VMStateDescription vmstate_gic_irq_state = {
 
 static const VMStateDescription vmstate_gic = {
     .name = "arm_gic",
-    .version_id = 5,
-    .minimum_version_id = 5,
+    .version_id = 6,
+    .minimum_version_id = 6,
     .pre_save = gic_pre_save,
     .post_load = gic_post_load,
     .fields = (VMStateField[]) {
@@ -76,6 +76,8 @@ static const VMStateDescription vmstate_gic = {
         VMSTATE_UINT16_ARRAY(running_irq, GICState, GIC_NCPU),
         VMSTATE_UINT16_ARRAY(running_priority, GICState, GIC_NCPU),
         VMSTATE_UINT16_ARRAY(current_pending, GICState, GIC_NCPU),
+        VMSTATE_UINT8_ARRAY(bpr, GICState, GIC_NCPU),
+        VMSTATE_UINT8_ARRAY(abpr, GICState, GIC_NCPU),
         VMSTATE_END_OF_LIST()
     }
 };