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authorPeter Xu <peterx@redhat.com>2017-12-10 14:38:17 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2017-12-21 09:30:32 +0100
commit1b23190aba72a974c9a08496bf6d45e14b60087a (patch)
tree4c6aadf19e7e8015fab847eb700941b38efafa79 /hw/intc
parentf260f7361ca6caf7bb672195c50db99eff26b856 (diff)
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i8259: generalize statistics into common code
It was only for userspace i8259. Move it to general code so that kvm-i8259 can also use it in the future. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20171210063819.14892-4-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/intc')
-rw-r--r--hw/intc/i8259.c37
-rw-r--r--hw/intc/i8259_common.c41
2 files changed, 42 insertions, 36 deletions
diff --git a/hw/intc/i8259.c b/hw/intc/i8259.c
index 20c9d0a..d9b9666 100644
--- a/hw/intc/i8259.c
+++ b/hw/intc/i8259.c
@@ -25,11 +25,9 @@
#include "hw/hw.h"
#include "hw/i386/pc.h"
#include "hw/isa/isa.h"
-#include "monitor/monitor.h"
#include "qemu/timer.h"
#include "qemu/log.h"
#include "hw/isa/i8259_internal.h"
-#include "hw/intc/intc.h"
#include "trace.h"
/* debug PIC */
@@ -51,8 +49,6 @@ typedef struct PICClass {
DeviceRealize parent_realize;
} PICClass;
-static int irq_level[16];
-static uint64_t irq_count[16];
#ifdef DEBUG_IRQ_LATENCY
static int64_t irq_time[16];
#endif
@@ -126,13 +122,7 @@ static void pic_set_irq(void *opaque, int irq, int level)
int irq_index = s->master ? irq : irq + 8;
trace_pic_set_irq(s->master, irq, level);
-
- if (level != irq_level[irq_index]) {
- irq_level[irq_index] = level;
- if (level == 1) {
- irq_count[irq_index]++;
- }
- }
+ pic_stat_update_irq(irq_index, level);
#ifdef DEBUG_IRQ_LATENCY
if (level) {
@@ -235,31 +225,6 @@ static void pic_reset(DeviceState *dev)
pic_init_reset(s);
}
-static 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;
-}
-
-static void pic_print_info(InterruptStatsProvider *obj, Monitor *mon)
-{
- PICCommonState *s = PIC_COMMON(obj);
- 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 void pic_ioport_write(void *opaque, hwaddr addr64,
uint64_t val64, unsigned size)
{
diff --git a/hw/intc/i8259_common.c b/hw/intc/i8259_common.c
index 18427b4..a3cadde 100644
--- 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)
{
@@ -98,6 +102,43 @@ 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);
+
+ 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,