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[Qemu-devel] [PATCH 05/16] hpet: Convert to qdev
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PATCH 05/16] hpet: Convert to qdev |
Date: |
Sun, 6 Jun 2010 10:10:54 +0200 |
From: Jan Kiszka <address@hidden>
Register the HPET as a sysbus device and create it that way. As it can
route its IRQs to any ISA IRQ, we need to connect it to all 24 of them.
Once converted to qdev, we can move reset handler and vmstate
registration into its hands as well.
Signed-off-by: Jan Kiszka <address@hidden>
---
hw/hpet.c | 43 ++++++++++++++++++++++++++++++-------------
hw/hpet_emul.h | 3 ++-
hw/pc.c | 7 ++++++-
3 files changed, 38 insertions(+), 15 deletions(-)
diff --git a/hw/hpet.c b/hw/hpet.c
index fd7a1fd..6974935 100644
--- a/hw/hpet.c
+++ b/hw/hpet.c
@@ -29,6 +29,7 @@
#include "console.h"
#include "qemu-timer.h"
#include "hpet_emul.h"
+#include "sysbus.h"
//#define HPET_DEBUG
#ifdef HPET_DEBUG
@@ -54,8 +55,9 @@ typedef struct HPETTimer { /* timers */
} HPETTimer;
typedef struct HPETState {
+ SysBusDevice busdev;
uint64_t hpet_offset;
- qemu_irq *irqs;
+ qemu_irq irqs[HPET_NUM_IRQ_ROUTES];
HPETTimer timer[HPET_NUM_TIMERS];
/* Memory-mapped, software visible registers */
@@ -565,9 +567,9 @@ static CPUWriteMemoryFunc * const hpet_ram_write[] = {
hpet_ram_writel,
};
-static void hpet_reset(void *opaque)
+static void hpet_reset(DeviceState *d)
{
- HPETState *s = opaque;
+ HPETState *s = FROM_SYSBUS(HPETState, sysbus_from_qdev(d));
int i;
static int count = 0;
@@ -600,28 +602,43 @@ static void hpet_reset(void *opaque)
count = 1;
}
-
-void hpet_init(qemu_irq *irq)
+static int hpet_init(SysBusDevice *dev)
{
+ HPETState *s = FROM_SYSBUS(HPETState, dev);
int i, iomemtype;
HPETTimer *timer;
- HPETState *s;
-
- DPRINTF ("hpet_init\n");
- s = qemu_mallocz(sizeof(HPETState));
+ assert(!hpet_statep);
hpet_statep = s;
- s->irqs = irq;
+ for (i = 0; i < HPET_NUM_IRQ_ROUTES; i++) {
+ sysbus_init_irq(dev, &s->irqs[i]);
+ }
for (i = 0; i < HPET_NUM_TIMERS; i++) {
timer = &s->timer[i];
timer->qemu_timer = qemu_new_timer(vm_clock, hpet_timer, timer);
timer->tn = i;
timer->state = s;
}
- vmstate_register(-1, &vmstate_hpet, s);
- qemu_register_reset(hpet_reset, s);
+
/* HPET Area */
iomemtype = cpu_register_io_memory(hpet_ram_read,
hpet_ram_write, s);
- cpu_register_physical_memory(HPET_BASE, 0x400, iomemtype);
+ sysbus_init_mmio(dev, 0x400, iomemtype);
+ return 0;
}
+
+static SysBusDeviceInfo hpet_device_info = {
+ .qdev.name = "hpet",
+ .qdev.size = sizeof(HPETState),
+ .qdev.no_user = 1,
+ .qdev.vmsd = &vmstate_hpet,
+ .qdev.reset = hpet_reset,
+ .init = hpet_init,
+};
+
+static void hpet_register_device(void)
+{
+ sysbus_register_withprop(&hpet_device_info);
+}
+
+device_init(hpet_register_device)
diff --git a/hw/hpet_emul.h b/hw/hpet_emul.h
index 2f5f8ba..785f850 100644
--- a/hw/hpet_emul.h
+++ b/hw/hpet_emul.h
@@ -19,6 +19,8 @@
#define FS_PER_NS 1000000
#define HPET_NUM_TIMERS 3
+#define HPET_NUM_IRQ_ROUTES 32
+
#define HPET_CFG_ENABLE 0x001
#define HPET_CFG_LEGACY 0x002
@@ -47,7 +49,6 @@
#if defined TARGET_I386
extern uint32_t hpet_in_legacy_mode(void);
-extern void hpet_init(qemu_irq *irq);
#endif
#endif
diff --git a/hw/pc.c b/hw/pc.c
index 9b85c42..ae31e2e 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -35,6 +35,7 @@
#include "elf.h"
#include "multiboot.h"
#include "mc146818rtc.h"
+#include "sysbus.h"
/* output Bochs bios info messages */
//#define DEBUG_BIOS
@@ -957,7 +958,11 @@ void pc_basic_device_init(qemu_irq *isa_irq,
pit = pit_init(0x40, isa_reserve_irq(0));
pcspk_init(pit);
if (!no_hpet) {
- hpet_init(isa_irq);
+ DeviceState *hpet = sysbus_create_simple("hpet", HPET_BASE, NULL);
+
+ for (i = 0; i < 24; i++) {
+ sysbus_connect_irq(sysbus_from_qdev(hpet), i, isa_irq[i]);
+ }
}
for(i = 0; i < MAX_SERIAL_PORTS; i++) {
--
1.6.0.2
- [Qemu-devel] [PATCH 00/16] HPET cleanups, fixes, enhancements, Jan Kiszka, 2010/06/06
- [Qemu-devel] [PATCH 01/16] hpet: Catch out-of-bounds timer access, Jan Kiszka, 2010/06/06
- [Qemu-devel] [PATCH 04/16] hpet: Move static timer field initialization, Jan Kiszka, 2010/06/06
- [Qemu-devel] [PATCH 05/16] hpet: Convert to qdev,
Jan Kiszka <=
- [Qemu-devel] [PATCH 03/16] hpet: Silence warning on write to running main counter, Jan Kiszka, 2010/06/06
- [Qemu-devel] [PATCH 07/16] monitor/QMP: Drop info hpet / query-hpet, Jan Kiszka, 2010/06/06
- [Qemu-devel] [PATCH 02/16] hpet: Coding style cleanups and some refactorings, Jan Kiszka, 2010/06/06
- [Qemu-devel] [PATCH 06/16] hpet: Start/stop timer when HPET_TN_ENABLE is modified, Jan Kiszka, 2010/06/06
- [Qemu-devel] [PATCH 09/16] Enable message delivery via IRQs, Jan Kiszka, 2010/06/06