[Qemu-devel] [PATCH 3/9] hw/arm_gic: Move NVIC specific reset to armv7m_nvic_reset

[Peter Maydell <peter.maydell@linaro.org>]

Move the NVIC specific bits of reset to the NVIC's own
reset function, rather than using ifdefs in the common
arm_gic reset.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm_gic.c     |   10 ----------
 hw/armv7m_nvic.c |    7 +++++++
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/hw/arm_gic.c b/hw/arm_gic.c
index 2d8ceb8..3293ae4 100644
--- a/hw/arm_gic.c
+++ b/hw/arm_gic.c
@@ -743,23 +743,13 @@ static void gic_reset(DeviceState *dev)
         s->current_pending[i] = 1023;
         s->running_irq[i] = 1023;
         s->running_priority[i] = 0x100;
-#ifdef NVIC
-        /* The NVIC doesn't have per-cpu interfaces, so enable by default.  */
-        s->cpu_enabled[i] = 1;
-#else
         s->cpu_enabled[i] = 0;
-#endif
     }
     for (i = 0; i < 16; i++) {
         GIC_SET_ENABLED(i, ALL_CPU_MASK);
         GIC_SET_TRIGGER(i);
     }
-#ifdef NVIC
-    /* The NVIC is always enabled.  */
-    s->enabled = 1;
-#else
     s->enabled = 0;
-#endif
 }
 
 static void gic_save(QEMUFile *f, void *opaque)
diff --git a/hw/armv7m_nvic.c b/hw/armv7m_nvic.c
index 99a87a2..653c011 100644
--- a/hw/armv7m_nvic.c
+++ b/hw/armv7m_nvic.c
@@ -382,6 +382,13 @@ static void armv7m_nvic_reset(DeviceState *dev)
 {
     nvic_state *s = FROM_SYSBUSGIC(nvic_state, sysbus_from_qdev(dev));
     gic_reset(&s->gic.busdev.qdev);
+    /* Common GIC reset resets to disabled; the NVIC doesn't have
+     * per-CPU interfaces so mark our non-existent CPU interface
+     * as enabled by default.
+     */
+    s->gic.cpu_enabled[0] = 1;
+    /* The NVIC as a whole is always enabled. */
+    s->gic.enabled = 1;
     systick_reset(s);
 }
 
-- 
1.7.1