mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-27 21:40:49 +00:00
e90f2a8c3e
cannot_instantiate_with_device_add_yet was introduced by commit
efec3dd631 to replace no_user. It was
supposed to be a temporary measure.
When it was introduced, we had 54
cannot_instantiate_with_device_add_yet=true lines in the code.
Today (3 years later) this number has not shrunk: we now have
57 cannot_instantiate_with_device_add_yet=true lines. I think it
is safe to say it is not a temporary measure, and we won't see
the flag go away soon.
Instead of a long field name that misleads people to believe it
is temporary, replace it a shorter and less misleading field:
user_creatable.
Except for code comments, changes were generated using the
following Coccinelle patch:
@@
expression DC;
@@
(
-DC->cannot_instantiate_with_device_add_yet = false;
+DC->user_creatable = true;
|
-DC->cannot_instantiate_with_device_add_yet = true;
+DC->user_creatable = false;
)
@@
typedef ObjectClass;
expression dc;
identifier class, data;
@@
static void device_class_init(ObjectClass *class, void *data)
{
...
dc->hotpluggable = true;
+dc->user_creatable = true;
...
}
@@
@@
struct DeviceClass {
...
-bool cannot_instantiate_with_device_add_yet;
+bool user_creatable;
...
}
@@
expression DC;
@@
(
-!DC->cannot_instantiate_with_device_add_yet
+DC->user_creatable
|
-DC->cannot_instantiate_with_device_add_yet
+!DC->user_creatable
)
Cc: Alistair Francis <alistair.francis@xilinx.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Thomas Huth <thuth@redhat.com>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170503203604.31462-2-ehabkost@redhat.com>
[ehabkost: kept "TODO remove once we're there" comment]
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/*
|
|
* QEMU Altera Internal Interrupt Controller.
|
|
*
|
|
* Copyright (c) 2012 Chris Wulff <crwulff@gmail.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see
|
|
* <http://www.gnu.org/licenses/lgpl-2.1.html>
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu-common.h"
|
|
#include "qapi/error.h"
|
|
|
|
#include "hw/sysbus.h"
|
|
#include "cpu.h"
|
|
|
|
#define TYPE_ALTERA_IIC "altera,iic"
|
|
#define ALTERA_IIC(obj) \
|
|
OBJECT_CHECK(AlteraIIC, (obj), TYPE_ALTERA_IIC)
|
|
|
|
typedef struct AlteraIIC {
|
|
SysBusDevice parent_obj;
|
|
void *cpu;
|
|
qemu_irq parent_irq;
|
|
} AlteraIIC;
|
|
|
|
static void update_irq(AlteraIIC *pv)
|
|
{
|
|
CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env;
|
|
|
|
qemu_set_irq(pv->parent_irq,
|
|
env->regs[CR_IPENDING] & env->regs[CR_IENABLE]);
|
|
}
|
|
|
|
static void irq_handler(void *opaque, int irq, int level)
|
|
{
|
|
AlteraIIC *pv = opaque;
|
|
CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env;
|
|
|
|
env->regs[CR_IPENDING] &= ~(1 << irq);
|
|
env->regs[CR_IPENDING] |= !!level << irq;
|
|
|
|
update_irq(pv);
|
|
}
|
|
|
|
static void altera_iic_init(Object *obj)
|
|
{
|
|
AlteraIIC *pv = ALTERA_IIC(obj);
|
|
|
|
qdev_init_gpio_in(DEVICE(pv), irq_handler, 32);
|
|
sysbus_init_irq(SYS_BUS_DEVICE(obj), &pv->parent_irq);
|
|
}
|
|
|
|
static void altera_iic_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
struct AlteraIIC *pv = ALTERA_IIC(dev);
|
|
Error *err = NULL;
|
|
|
|
pv->cpu = object_property_get_link(OBJECT(dev), "cpu", &err);
|
|
if (!pv->cpu) {
|
|
error_setg(errp, "altera,iic: CPU link not found: %s",
|
|
error_get_pretty(err));
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void altera_iic_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
/* Reason: needs to be wired up, e.g. by nios2_10m50_ghrd_init() */
|
|
dc->user_creatable = false;
|
|
dc->realize = altera_iic_realize;
|
|
}
|
|
|
|
static TypeInfo altera_iic_info = {
|
|
.name = "altera,iic",
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = sizeof(AlteraIIC),
|
|
.instance_init = altera_iic_init,
|
|
.class_init = altera_iic_class_init,
|
|
};
|
|
|
|
static void altera_iic_register(void)
|
|
{
|
|
type_register_static(&altera_iic_info);
|
|
}
|
|
|
|
type_init(altera_iic_register)
|