Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20190523' into...

[mirror_qemu.git] / hw / intc / i8259_common.c

diff --git a/hw/intc/i8259_common.c b/hw/intc/i8259_common.c
index c2fd563b5b42d1eca7da182cc7a08d238169ec1c..c75c8801573d26e4ade30f18bef818558be4e8eb 100644 (file)
--- a/hw/intc/i8259_common.c
+++ b/hw/intc/i8259_common.c
@@ -25,6 +25,10 @@
 #include "qemu/osdep.h"
 #include "hw/i386/pc.h"
 #include "hw/isa/i8259_internal.h"
+#include "monitor/monitor.h"
+
+static int irq_level[16];
+static uint64_t irq_count[16];
 
 void pic_reset_common(PICCommonState *s)
 {
@@ -46,7 +50,7 @@ void pic_reset_common(PICCommonState *s)
     /* Note: ELCR is not reset */
 }
 
-static void pic_dispatch_pre_save(void *opaque)
+static int pic_dispatch_pre_save(void *opaque)
 {
     PICCommonState *s = opaque;
     PICCommonClass *info = PIC_COMMON_GET_CLASS(s);
@@ -54,6 +58,8 @@ static void pic_dispatch_pre_save(void *opaque)
     if (info->pre_save) {
         info->pre_save(s);
     }
+
+    return 0;
 }
 
 static int pic_dispatch_post_load(void *opaque, int version_id)
@@ -96,6 +102,44 @@ ISADevice *i8259_init_chip(const char *name, ISABus *bus, bool master)
     return isadev;
 }
 
+void pic_stat_update_irq(int irq, int level)
+{
+    if (level != irq_level[irq]) {
+        irq_level[irq] = level;
+        if (level == 1) {
+            irq_count[irq]++;
+        }
+    }
+}
+
+bool pic_get_statistics(InterruptStatsProvider *obj,
+                        uint64_t **irq_counts, unsigned int *nb_irqs)
+{
+    PICCommonState *s = PIC_COMMON(obj);
+
+    if (s->master) {
+        *irq_counts = irq_count;
+        *nb_irqs = ARRAY_SIZE(irq_count);
+    } else {
+        *irq_counts = NULL;
+        *nb_irqs = 0;
+    }
+
+    return true;
+}
+
+void pic_print_info(InterruptStatsProvider *obj, Monitor *mon)
+{
+    PICCommonState *s = PIC_COMMON(obj);
+
+    pic_dispatch_pre_save(s);
+    monitor_printf(mon, "pic%d: irr=%02x imr=%02x isr=%02x hprio=%d "
+                   "irq_base=%02x rr_sel=%d elcr=%02x fnm=%d\n",
+                   s->master ? 0 : 1, s->irr, s->imr, s->isr, s->priority_add,
+                   s->irq_base, s->read_reg_select, s->elcr,
+                   s->special_fully_nested_mode);
+}
+
 static const VMStateDescription vmstate_pic_common = {
     .name = "i8259",
     .version_id = 1,
@@ -134,6 +178,7 @@ static Property pic_properties_common[] = {
 static void pic_common_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
+    InterruptStatsProviderClass *ic = INTERRUPT_STATS_PROVIDER_CLASS(klass);
 
     dc->vmsd = &vmstate_pic_common;
     dc->props = pic_properties_common;
@@ -145,6 +190,8 @@ static void pic_common_class_init(ObjectClass *klass, void *data)
      * code.
      */
     dc->user_creatable = false;
+    ic->get_statistics = pic_get_statistics;
+    ic->print_info = pic_print_info;
 }
 
 static const TypeInfo pic_common_type = {
@@ -154,6 +201,10 @@ static const TypeInfo pic_common_type = {
     .class_size = sizeof(PICCommonClass),
     .class_init = pic_common_class_init,
     .abstract = true,
+    .interfaces = (InterfaceInfo[]) {
+        { TYPE_INTERRUPT_STATS_PROVIDER },
+        { }
+    },
 };
 
 static void pic_common_register_types(void)