2016-03-15 10:59:26 +01:00
|
|
|
/*
|
|
|
|
* Coherent Processing System emulation.
|
|
|
|
*
|
|
|
|
* Copyright (c) 2016 Imagination Technologies
|
|
|
|
*
|
|
|
|
* 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 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/>.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "qemu/osdep.h"
|
|
|
|
#include "qapi/error.h"
|
2019-05-23 16:35:07 +02:00
|
|
|
#include "qemu/module.h"
|
2016-03-15 10:59:26 +01:00
|
|
|
#include "hw/mips/cps.h"
|
|
|
|
#include "hw/mips/mips.h"
|
|
|
|
#include "hw/mips/cpudevs.h"
|
2016-03-25 14:49:37 +01:00
|
|
|
#include "sysemu/kvm.h"
|
2019-08-12 07:23:38 +02:00
|
|
|
#include "sysemu/reset.h"
|
2016-03-15 10:59:26 +01:00
|
|
|
|
|
|
|
qemu_irq get_cps_irq(MIPSCPSState *s, int pin_number)
|
|
|
|
{
|
|
|
|
assert(pin_number < s->num_irq);
|
2016-03-29 04:35:52 +02:00
|
|
|
return s->gic.irq_state[pin_number].irq;
|
2016-03-15 10:59:26 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
static void mips_cps_init(Object *obj)
|
|
|
|
{
|
|
|
|
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
|
|
|
|
MIPSCPSState *s = MIPS_CPS(obj);
|
|
|
|
|
|
|
|
/* Cover entire address space as there do not seem to be any
|
|
|
|
* constraints for the base address of CPC and GIC. */
|
|
|
|
memory_region_init(&s->container, obj, "mips-cps-container", UINT64_MAX);
|
|
|
|
sysbus_init_mmio(sbd, &s->container);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void main_cpu_reset(void *opaque)
|
|
|
|
{
|
|
|
|
MIPSCPU *cpu = opaque;
|
|
|
|
CPUState *cs = CPU(cpu);
|
|
|
|
|
|
|
|
cpu_reset(cs);
|
|
|
|
|
|
|
|
/* All VPs are halted on reset. Leave powering up to CPC. */
|
|
|
|
cs->halted = 1;
|
|
|
|
}
|
|
|
|
|
2016-03-25 14:49:37 +01:00
|
|
|
static bool cpu_mips_itu_supported(CPUMIPSState *env)
|
|
|
|
{
|
|
|
|
bool is_mt = (env->CP0_Config5 & (1 << CP0C5_VP)) ||
|
|
|
|
(env->CP0_Config3 & (1 << CP0C3_MT));
|
|
|
|
|
|
|
|
return is_mt && !kvm_enabled();
|
|
|
|
}
|
|
|
|
|
2016-03-15 10:59:26 +01:00
|
|
|
static void mips_cps_realize(DeviceState *dev, Error **errp)
|
|
|
|
{
|
|
|
|
MIPSCPSState *s = MIPS_CPS(dev);
|
|
|
|
CPUMIPSState *env;
|
|
|
|
MIPSCPU *cpu;
|
|
|
|
int i;
|
2016-03-15 10:59:29 +01:00
|
|
|
Error *err = NULL;
|
|
|
|
target_ulong gcr_base;
|
2016-03-25 14:49:37 +01:00
|
|
|
bool itu_present = false;
|
2019-01-03 16:46:32 +01:00
|
|
|
bool saar_present = false;
|
2016-03-15 10:59:26 +01:00
|
|
|
|
|
|
|
for (i = 0; i < s->num_vp; i++) {
|
2017-10-05 15:51:10 +02:00
|
|
|
cpu = MIPS_CPU(cpu_create(s->cpu_type));
|
2016-03-15 10:59:26 +01:00
|
|
|
|
|
|
|
/* Init internal devices */
|
2016-03-15 14:32:19 +01:00
|
|
|
cpu_mips_irq_init_cpu(cpu);
|
|
|
|
cpu_mips_clock_init(cpu);
|
|
|
|
|
|
|
|
env = &cpu->env;
|
2016-03-25 14:49:37 +01:00
|
|
|
if (cpu_mips_itu_supported(env)) {
|
|
|
|
itu_present = true;
|
|
|
|
/* Attach ITC Tag to the VP */
|
|
|
|
env->itc_tag = mips_itu_get_tag_region(&s->itu);
|
2019-01-03 16:46:32 +01:00
|
|
|
env->itu = &s->itu;
|
2016-03-25 14:49:37 +01:00
|
|
|
}
|
2016-03-15 10:59:26 +01:00
|
|
|
qemu_register_reset(main_cpu_reset, cpu);
|
|
|
|
}
|
2016-03-15 10:59:29 +01:00
|
|
|
|
|
|
|
cpu = MIPS_CPU(first_cpu);
|
|
|
|
env = &cpu->env;
|
2019-01-03 16:46:32 +01:00
|
|
|
saar_present = (bool)env->saarp;
|
2016-03-15 10:59:29 +01:00
|
|
|
|
2016-03-25 14:49:37 +01:00
|
|
|
/* Inter-Thread Communication Unit */
|
|
|
|
if (itu_present) {
|
hw/mips: Use object_initialize_child for correct reference counting
As explained in commit aff39be0ed97:
Both functions, object_initialize() and object_property_add_child()
increase the reference counter of the new object, so one of the
references has to be dropped afterwards to get the reference
counting right. Otherwise the child object will not be properly
cleaned up when the parent gets destroyed.
Thus let's use now object_initialize_child() instead to get the
reference counting here right.
This patch was generated using the following Coccinelle script:
@use_sysbus_init_child_obj_missing_parent@
expression child_ptr;
expression child_type;
expression child_size;
@@
- object_initialize(child_ptr, child_size, child_type);
...
- qdev_set_parent_bus(DEVICE(child_ptr), sysbus_get_default());
...
?- object_unref(OBJECT(child_ptr));
+ sysbus_init_child_obj(OBJECT(PARENT_OBJ), "CHILD_NAME", child_ptr,
+ child_size, child_type);
We let the Malta/Boston machines adopt the CPS child, and similarly
the CPS adopts the ITU/CPC/GIC/GCR children.
While the object_initialize() function doesn't take an
'Error *errp' argument, the object_initialize_child() does.
Since this code is used when a machine is created (and is not
yet running), we deliberately choose to use the &error_abort
argument instead of ignoring errors if an object creation failed.
This choice also matches when using sysbus_init_child_obj(),
since its code is:
void sysbus_init_child_obj(Object *parent,
const char *childname, void *child,
size_t childsize, const char *childtype)
{
object_initialize_child(parent, childname, child, childsize,
childtype, &error_abort, NULL);
qdev_set_parent_bus(DEVICE(child), sysbus_get_default());
}
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Inspired-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190507163416.24647-11-philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-05-07 18:34:10 +02:00
|
|
|
sysbus_init_child_obj(OBJECT(dev), "itu", &s->itu, sizeof(s->itu),
|
|
|
|
TYPE_MIPS_ITU);
|
2016-03-25 14:49:37 +01:00
|
|
|
object_property_set_int(OBJECT(&s->itu), 16, "num-fifo", &err);
|
|
|
|
object_property_set_int(OBJECT(&s->itu), 16, "num-semaphores", &err);
|
2019-01-03 16:46:32 +01:00
|
|
|
object_property_set_bool(OBJECT(&s->itu), saar_present, "saar-present",
|
|
|
|
&err);
|
|
|
|
if (saar_present) {
|
|
|
|
qdev_prop_set_ptr(DEVICE(&s->itu), "saar", (void *)&env->CP0_SAAR);
|
|
|
|
}
|
2016-03-25 14:49:37 +01:00
|
|
|
object_property_set_bool(OBJECT(&s->itu), true, "realized", &err);
|
|
|
|
if (err != NULL) {
|
|
|
|
error_propagate(errp, err);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
memory_region_add_subregion(&s->container, 0,
|
|
|
|
sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->itu), 0));
|
|
|
|
}
|
|
|
|
|
2016-03-15 10:59:31 +01:00
|
|
|
/* Cluster Power Controller */
|
hw/mips: Use object_initialize_child for correct reference counting
As explained in commit aff39be0ed97:
Both functions, object_initialize() and object_property_add_child()
increase the reference counter of the new object, so one of the
references has to be dropped afterwards to get the reference
counting right. Otherwise the child object will not be properly
cleaned up when the parent gets destroyed.
Thus let's use now object_initialize_child() instead to get the
reference counting here right.
This patch was generated using the following Coccinelle script:
@use_sysbus_init_child_obj_missing_parent@
expression child_ptr;
expression child_type;
expression child_size;
@@
- object_initialize(child_ptr, child_size, child_type);
...
- qdev_set_parent_bus(DEVICE(child_ptr), sysbus_get_default());
...
?- object_unref(OBJECT(child_ptr));
+ sysbus_init_child_obj(OBJECT(PARENT_OBJ), "CHILD_NAME", child_ptr,
+ child_size, child_type);
We let the Malta/Boston machines adopt the CPS child, and similarly
the CPS adopts the ITU/CPC/GIC/GCR children.
While the object_initialize() function doesn't take an
'Error *errp' argument, the object_initialize_child() does.
Since this code is used when a machine is created (and is not
yet running), we deliberately choose to use the &error_abort
argument instead of ignoring errors if an object creation failed.
This choice also matches when using sysbus_init_child_obj(),
since its code is:
void sysbus_init_child_obj(Object *parent,
const char *childname, void *child,
size_t childsize, const char *childtype)
{
object_initialize_child(parent, childname, child, childsize,
childtype, &error_abort, NULL);
qdev_set_parent_bus(DEVICE(child), sysbus_get_default());
}
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Inspired-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190507163416.24647-11-philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-05-07 18:34:10 +02:00
|
|
|
sysbus_init_child_obj(OBJECT(dev), "cpc", &s->cpc, sizeof(s->cpc),
|
|
|
|
TYPE_MIPS_CPC);
|
2016-03-15 10:59:31 +01:00
|
|
|
object_property_set_int(OBJECT(&s->cpc), s->num_vp, "num-vp", &err);
|
|
|
|
object_property_set_int(OBJECT(&s->cpc), 1, "vp-start-running", &err);
|
|
|
|
object_property_set_bool(OBJECT(&s->cpc), true, "realized", &err);
|
|
|
|
if (err != NULL) {
|
|
|
|
error_propagate(errp, err);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
memory_region_add_subregion(&s->container, 0,
|
|
|
|
sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->cpc), 0));
|
|
|
|
|
2016-03-29 04:35:52 +02:00
|
|
|
/* Global Interrupt Controller */
|
hw/mips: Use object_initialize_child for correct reference counting
As explained in commit aff39be0ed97:
Both functions, object_initialize() and object_property_add_child()
increase the reference counter of the new object, so one of the
references has to be dropped afterwards to get the reference
counting right. Otherwise the child object will not be properly
cleaned up when the parent gets destroyed.
Thus let's use now object_initialize_child() instead to get the
reference counting here right.
This patch was generated using the following Coccinelle script:
@use_sysbus_init_child_obj_missing_parent@
expression child_ptr;
expression child_type;
expression child_size;
@@
- object_initialize(child_ptr, child_size, child_type);
...
- qdev_set_parent_bus(DEVICE(child_ptr), sysbus_get_default());
...
?- object_unref(OBJECT(child_ptr));
+ sysbus_init_child_obj(OBJECT(PARENT_OBJ), "CHILD_NAME", child_ptr,
+ child_size, child_type);
We let the Malta/Boston machines adopt the CPS child, and similarly
the CPS adopts the ITU/CPC/GIC/GCR children.
While the object_initialize() function doesn't take an
'Error *errp' argument, the object_initialize_child() does.
Since this code is used when a machine is created (and is not
yet running), we deliberately choose to use the &error_abort
argument instead of ignoring errors if an object creation failed.
This choice also matches when using sysbus_init_child_obj(),
since its code is:
void sysbus_init_child_obj(Object *parent,
const char *childname, void *child,
size_t childsize, const char *childtype)
{
object_initialize_child(parent, childname, child, childsize,
childtype, &error_abort, NULL);
qdev_set_parent_bus(DEVICE(child), sysbus_get_default());
}
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Inspired-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190507163416.24647-11-philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-05-07 18:34:10 +02:00
|
|
|
sysbus_init_child_obj(OBJECT(dev), "gic", &s->gic, sizeof(s->gic),
|
|
|
|
TYPE_MIPS_GIC);
|
2016-03-29 04:35:52 +02:00
|
|
|
object_property_set_int(OBJECT(&s->gic), s->num_vp, "num-vp", &err);
|
|
|
|
object_property_set_int(OBJECT(&s->gic), 128, "num-irq", &err);
|
|
|
|
object_property_set_bool(OBJECT(&s->gic), true, "realized", &err);
|
|
|
|
if (err != NULL) {
|
|
|
|
error_propagate(errp, err);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
memory_region_add_subregion(&s->container, 0,
|
|
|
|
sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->gic), 0));
|
|
|
|
|
2016-03-15 10:59:29 +01:00
|
|
|
/* Global Configuration Registers */
|
|
|
|
gcr_base = env->CP0_CMGCRBase << 4;
|
|
|
|
|
hw/mips: Use object_initialize_child for correct reference counting
As explained in commit aff39be0ed97:
Both functions, object_initialize() and object_property_add_child()
increase the reference counter of the new object, so one of the
references has to be dropped afterwards to get the reference
counting right. Otherwise the child object will not be properly
cleaned up when the parent gets destroyed.
Thus let's use now object_initialize_child() instead to get the
reference counting here right.
This patch was generated using the following Coccinelle script:
@use_sysbus_init_child_obj_missing_parent@
expression child_ptr;
expression child_type;
expression child_size;
@@
- object_initialize(child_ptr, child_size, child_type);
...
- qdev_set_parent_bus(DEVICE(child_ptr), sysbus_get_default());
...
?- object_unref(OBJECT(child_ptr));
+ sysbus_init_child_obj(OBJECT(PARENT_OBJ), "CHILD_NAME", child_ptr,
+ child_size, child_type);
We let the Malta/Boston machines adopt the CPS child, and similarly
the CPS adopts the ITU/CPC/GIC/GCR children.
While the object_initialize() function doesn't take an
'Error *errp' argument, the object_initialize_child() does.
Since this code is used when a machine is created (and is not
yet running), we deliberately choose to use the &error_abort
argument instead of ignoring errors if an object creation failed.
This choice also matches when using sysbus_init_child_obj(),
since its code is:
void sysbus_init_child_obj(Object *parent,
const char *childname, void *child,
size_t childsize, const char *childtype)
{
object_initialize_child(parent, childname, child, childsize,
childtype, &error_abort, NULL);
qdev_set_parent_bus(DEVICE(child), sysbus_get_default());
}
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Inspired-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190507163416.24647-11-philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-05-07 18:34:10 +02:00
|
|
|
sysbus_init_child_obj(OBJECT(dev), "gcr", &s->gcr, sizeof(s->gcr),
|
|
|
|
TYPE_MIPS_GCR);
|
2016-03-15 10:59:29 +01:00
|
|
|
object_property_set_int(OBJECT(&s->gcr), s->num_vp, "num-vp", &err);
|
|
|
|
object_property_set_int(OBJECT(&s->gcr), 0x800, "gcr-rev", &err);
|
|
|
|
object_property_set_int(OBJECT(&s->gcr), gcr_base, "gcr-base", &err);
|
2016-03-29 04:35:52 +02:00
|
|
|
object_property_set_link(OBJECT(&s->gcr), OBJECT(&s->gic.mr), "gic", &err);
|
2016-03-15 10:59:31 +01:00
|
|
|
object_property_set_link(OBJECT(&s->gcr), OBJECT(&s->cpc.mr), "cpc", &err);
|
2016-03-15 10:59:29 +01:00
|
|
|
object_property_set_bool(OBJECT(&s->gcr), true, "realized", &err);
|
|
|
|
if (err != NULL) {
|
|
|
|
error_propagate(errp, err);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
memory_region_add_subregion(&s->container, gcr_base,
|
|
|
|
sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->gcr), 0));
|
2016-03-15 10:59:26 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
static Property mips_cps_properties[] = {
|
|
|
|
DEFINE_PROP_UINT32("num-vp", MIPSCPSState, num_vp, 1),
|
2016-03-29 04:35:52 +02:00
|
|
|
DEFINE_PROP_UINT32("num-irq", MIPSCPSState, num_irq, 256),
|
2017-10-05 15:51:10 +02:00
|
|
|
DEFINE_PROP_STRING("cpu-type", MIPSCPSState, cpu_type),
|
2016-03-15 10:59:26 +01:00
|
|
|
DEFINE_PROP_END_OF_LIST()
|
|
|
|
};
|
|
|
|
|
|
|
|
static void mips_cps_class_init(ObjectClass *klass, void *data)
|
|
|
|
{
|
|
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
|
|
|
|
dc->realize = mips_cps_realize;
|
|
|
|
dc->props = mips_cps_properties;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const TypeInfo mips_cps_info = {
|
|
|
|
.name = TYPE_MIPS_CPS,
|
|
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
|
|
.instance_size = sizeof(MIPSCPSState),
|
|
|
|
.instance_init = mips_cps_init,
|
|
|
|
.class_init = mips_cps_class_init,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void mips_cps_register_types(void)
|
|
|
|
{
|
|
|
|
type_register_static(&mips_cps_info);
|
|
|
|
}
|
|
|
|
|
|
|
|
type_init(mips_cps_register_types)
|