diff mbox

[01/25] ppc/xics: introduce an icp_create() helper

Message ID 20171123132955.1261-2-clg@kaod.org (mailing list archive)
State New, archived
Headers show

Commit Message

Cédric Le Goater Nov. 23, 2017, 1:29 p.m. UTC
The sPAPR and the PowerNV core objects create the interrupt presenter
object of the CPUs in a very similar way. Let's provide a common
routine in which we use the presenter 'type' as a child identifier.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 hw/intc/xics.c          | 22 ++++++++++++++++++++++
 hw/ppc/pnv_core.c       | 10 +---------
 hw/ppc/spapr_cpu_core.c | 13 ++-----------
 include/hw/ppc/xics.h   |  3 +++
 4 files changed, 28 insertions(+), 20 deletions(-)

Comments

David Gibson Nov. 24, 2017, 2:51 a.m. UTC | #1
On Thu, Nov 23, 2017 at 02:29:31PM +0100, Cédric Le Goater wrote:
> The sPAPR and the PowerNV core objects create the interrupt presenter
> object of the CPUs in a very similar way. Let's provide a common
> routine in which we use the presenter 'type' as a child identifier.
> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>

One tiny nit.., apart from that

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

> ---
>  hw/intc/xics.c          | 22 ++++++++++++++++++++++
>  hw/ppc/pnv_core.c       | 10 +---------
>  hw/ppc/spapr_cpu_core.c | 13 ++-----------
>  include/hw/ppc/xics.h   |  3 +++
>  4 files changed, 28 insertions(+), 20 deletions(-)
> 
> diff --git a/hw/intc/xics.c b/hw/intc/xics.c
> index a1cc0e420c98..e4ccdff8f577 100644
> --- a/hw/intc/xics.c
> +++ b/hw/intc/xics.c
> @@ -384,6 +384,28 @@ static const TypeInfo icp_info = {
>      .class_size = sizeof(ICPStateClass),
>  };
>  
> +Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi, Error **errp)
> +{
> +    Object *child = OBJECT(cs);

In the original context 'child' made sense, since it was the child
object of the core.  Here, it's misleading, since it's the parent of
the xics link.  It's only used in a couple of places, so I suggest you
just opencode OBJECT(cs) in each place.

> +    Error *local_err = NULL;
> +    Object *obj;
> +
> +    obj = object_new(type);
> +    object_property_add_child(child, type, obj, &error_abort);
> +    object_unref(obj);
> +    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
> +                                   &error_abort);
> +    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
> +    object_property_set_bool(obj, true, "realized", &local_err);
> +    if (local_err) {
> +        object_unparent(obj);
> +        error_propagate(errp, local_err);
> +        obj = NULL;
> +    }
> +
> +    return obj;
> +}
> +
>  /*
>   * ICS: Source layer
>   */
> diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> index 82ff440b3334..a066736846f8 100644
> --- a/hw/ppc/pnv_core.c
> +++ b/hw/ppc/pnv_core.c
> @@ -126,7 +126,6 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
>      Error *local_err = NULL;
>      CPUState *cs = CPU(child);
>      PowerPCCPU *cpu = POWERPC_CPU(cs);
> -    Object *obj;
>  
>      object_property_set_bool(child, true, "realized", &local_err);
>      if (local_err) {
> @@ -134,13 +133,7 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
>          return;
>      }
>  
> -    obj = object_new(TYPE_PNV_ICP);
> -    object_property_add_child(child, "icp", obj, NULL);
> -    object_unref(obj);
> -    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
> -                                   &error_abort);
> -    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
> -    object_property_set_bool(obj, true, "realized", &local_err);
> +    icp_create(cs, TYPE_PNV_ICP, xi, &local_err);
>      if (local_err) {
>          error_propagate(errp, local_err);
>          return;
> @@ -148,7 +141,6 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
>  
>      powernv_cpu_init(cpu, &local_err);
>      if (local_err) {
> -        object_unparent(obj);
>          error_propagate(errp, local_err);
>          return;
>      }
> diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
> index 4ba8563d49e4..f8a520a2fa2d 100644
> --- a/hw/ppc/spapr_cpu_core.c
> +++ b/hw/ppc/spapr_cpu_core.c
> @@ -111,7 +111,6 @@ static void spapr_cpu_core_realize_child(Object *child,
>      Error *local_err = NULL;
>      CPUState *cs = CPU(child);
>      PowerPCCPU *cpu = POWERPC_CPU(cs);
> -    Object *obj;
>  
>      object_property_set_bool(child, true, "realized", &local_err);
>      if (local_err) {
> @@ -123,21 +122,13 @@ static void spapr_cpu_core_realize_child(Object *child,
>          goto error;
>      }
>  
> -    obj = object_new(spapr->icp_type);
> -    object_property_add_child(child, "icp", obj, &error_abort);
> -    object_unref(obj);
> -    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(spapr),
> -                                   &error_abort);
> -    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
> -    object_property_set_bool(obj, true, "realized", &local_err);
> +    icp_create(cs, spapr->icp_type, XICS_FABRIC(spapr), &local_err);
>      if (local_err) {
> -        goto free_icp;
> +        goto error;
>      }
>  
>      return;
>  
> -free_icp:
> -    object_unparent(obj);
>  error:
>      error_propagate(errp, local_err);
>  }
> diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
> index 2df99be111ce..126b47dec38b 100644
> --- a/include/hw/ppc/xics.h
> +++ b/include/hw/ppc/xics.h
> @@ -212,4 +212,7 @@ typedef struct sPAPRMachineState sPAPRMachineState;
>  int xics_kvm_init(sPAPRMachineState *spapr, Error **errp);
>  void xics_spapr_init(sPAPRMachineState *spapr);
>  
> +Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi,
> +                   Error **errp);
> +
>  #endif /* XICS_H */
Cédric Le Goater Nov. 24, 2017, 7:57 a.m. UTC | #2
On 11/24/2017 03:51 AM, David Gibson wrote:
> On Thu, Nov 23, 2017 at 02:29:31PM +0100, Cédric Le Goater wrote:
>> The sPAPR and the PowerNV core objects create the interrupt presenter
>> object of the CPUs in a very similar way. Let's provide a common
>> routine in which we use the presenter 'type' as a child identifier.
>>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> 
> One tiny nit.., apart from that
> 
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> 
>> ---
>>  hw/intc/xics.c          | 22 ++++++++++++++++++++++
>>  hw/ppc/pnv_core.c       | 10 +---------
>>  hw/ppc/spapr_cpu_core.c | 13 ++-----------
>>  include/hw/ppc/xics.h   |  3 +++
>>  4 files changed, 28 insertions(+), 20 deletions(-)
>>
>> diff --git a/hw/intc/xics.c b/hw/intc/xics.c
>> index a1cc0e420c98..e4ccdff8f577 100644
>> --- a/hw/intc/xics.c
>> +++ b/hw/intc/xics.c
>> @@ -384,6 +384,28 @@ static const TypeInfo icp_info = {
>>      .class_size = sizeof(ICPStateClass),
>>  };
>>  
>> +Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi, Error **errp)
>> +{
>> +    Object *child = OBJECT(cs);
> 
> In the original context 'child' made sense, since it was the child
> object of the core.  Here, it's misleading, since it's the parent of
> the xics link.  It's only used in a couple of places, so I suggest you
> just opencode OBJECT(cs) in each place.

yes. That was a left over from the copy-paste.

Thanks,

C.


>> +    Error *local_err = NULL;
>> +    Object *obj;
>> +
>> +    obj = object_new(type);
>> +    object_property_add_child(child, type, obj, &error_abort);
>> +    object_unref(obj);
>> +    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
>> +                                   &error_abort);
>> +    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
>> +    object_property_set_bool(obj, true, "realized", &local_err);
>> +    if (local_err) {
>> +        object_unparent(obj);
>> +        error_propagate(errp, local_err);
>> +        obj = NULL;
>> +    }
>> +
>> +    return obj;
>> +}
>> +
>>  /*
>>   * ICS: Source layer
>>   */
>> diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
>> index 82ff440b3334..a066736846f8 100644
>> --- a/hw/ppc/pnv_core.c
>> +++ b/hw/ppc/pnv_core.c
>> @@ -126,7 +126,6 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
>>      Error *local_err = NULL;
>>      CPUState *cs = CPU(child);
>>      PowerPCCPU *cpu = POWERPC_CPU(cs);
>> -    Object *obj;
>>  
>>      object_property_set_bool(child, true, "realized", &local_err);
>>      if (local_err) {
>> @@ -134,13 +133,7 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
>>          return;
>>      }
>>  
>> -    obj = object_new(TYPE_PNV_ICP);
>> -    object_property_add_child(child, "icp", obj, NULL);
>> -    object_unref(obj);
>> -    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
>> -                                   &error_abort);
>> -    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
>> -    object_property_set_bool(obj, true, "realized", &local_err);
>> +    icp_create(cs, TYPE_PNV_ICP, xi, &local_err);
>>      if (local_err) {
>>          error_propagate(errp, local_err);
>>          return;
>> @@ -148,7 +141,6 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
>>  
>>      powernv_cpu_init(cpu, &local_err);
>>      if (local_err) {
>> -        object_unparent(obj);
>>          error_propagate(errp, local_err);
>>          return;
>>      }
>> diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
>> index 4ba8563d49e4..f8a520a2fa2d 100644
>> --- a/hw/ppc/spapr_cpu_core.c
>> +++ b/hw/ppc/spapr_cpu_core.c
>> @@ -111,7 +111,6 @@ static void spapr_cpu_core_realize_child(Object *child,
>>      Error *local_err = NULL;
>>      CPUState *cs = CPU(child);
>>      PowerPCCPU *cpu = POWERPC_CPU(cs);
>> -    Object *obj;
>>  
>>      object_property_set_bool(child, true, "realized", &local_err);
>>      if (local_err) {
>> @@ -123,21 +122,13 @@ static void spapr_cpu_core_realize_child(Object *child,
>>          goto error;
>>      }
>>  
>> -    obj = object_new(spapr->icp_type);
>> -    object_property_add_child(child, "icp", obj, &error_abort);
>> -    object_unref(obj);
>> -    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(spapr),
>> -                                   &error_abort);
>> -    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
>> -    object_property_set_bool(obj, true, "realized", &local_err);
>> +    icp_create(cs, spapr->icp_type, XICS_FABRIC(spapr), &local_err);
>>      if (local_err) {
>> -        goto free_icp;
>> +        goto error;
>>      }
>>  
>>      return;
>>  
>> -free_icp:
>> -    object_unparent(obj);
>>  error:
>>      error_propagate(errp, local_err);
>>  }
>> diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
>> index 2df99be111ce..126b47dec38b 100644
>> --- a/include/hw/ppc/xics.h
>> +++ b/include/hw/ppc/xics.h
>> @@ -212,4 +212,7 @@ typedef struct sPAPRMachineState sPAPRMachineState;
>>  int xics_kvm_init(sPAPRMachineState *spapr, Error **errp);
>>  void xics_spapr_init(sPAPRMachineState *spapr);
>>  
>> +Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi,
>> +                   Error **errp);
>> +
>>  #endif /* XICS_H */
>
Greg Kurz Nov. 24, 2017, 9:08 a.m. UTC | #3
On Thu, 23 Nov 2017 14:29:31 +0100
Cédric Le Goater <clg@kaod.org> wrote:

> The sPAPR and the PowerNV core objects create the interrupt presenter
> object of the CPUs in a very similar way. Let's provide a common
> routine in which we use the presenter 'type' as a child identifier.
> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---

Reviewed-by: Greg Kurz <groug@kaod.org>

>  hw/intc/xics.c          | 22 ++++++++++++++++++++++
>  hw/ppc/pnv_core.c       | 10 +---------
>  hw/ppc/spapr_cpu_core.c | 13 ++-----------
>  include/hw/ppc/xics.h   |  3 +++
>  4 files changed, 28 insertions(+), 20 deletions(-)
> 
> diff --git a/hw/intc/xics.c b/hw/intc/xics.c
> index a1cc0e420c98..e4ccdff8f577 100644
> --- a/hw/intc/xics.c
> +++ b/hw/intc/xics.c
> @@ -384,6 +384,28 @@ static const TypeInfo icp_info = {
>      .class_size = sizeof(ICPStateClass),
>  };
>  
> +Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi, Error **errp)
> +{
> +    Object *child = OBJECT(cs);
> +    Error *local_err = NULL;
> +    Object *obj;
> +
> +    obj = object_new(type);
> +    object_property_add_child(child, type, obj, &error_abort);
> +    object_unref(obj);
> +    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
> +                                   &error_abort);
> +    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
> +    object_property_set_bool(obj, true, "realized", &local_err);
> +    if (local_err) {
> +        object_unparent(obj);
> +        error_propagate(errp, local_err);
> +        obj = NULL;
> +    }
> +
> +    return obj;
> +}
> +
>  /*
>   * ICS: Source layer
>   */
> diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> index 82ff440b3334..a066736846f8 100644
> --- a/hw/ppc/pnv_core.c
> +++ b/hw/ppc/pnv_core.c
> @@ -126,7 +126,6 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
>      Error *local_err = NULL;
>      CPUState *cs = CPU(child);
>      PowerPCCPU *cpu = POWERPC_CPU(cs);
> -    Object *obj;
>  
>      object_property_set_bool(child, true, "realized", &local_err);
>      if (local_err) {
> @@ -134,13 +133,7 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
>          return;
>      }
>  
> -    obj = object_new(TYPE_PNV_ICP);
> -    object_property_add_child(child, "icp", obj, NULL);
> -    object_unref(obj);
> -    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
> -                                   &error_abort);
> -    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
> -    object_property_set_bool(obj, true, "realized", &local_err);
> +    icp_create(cs, TYPE_PNV_ICP, xi, &local_err);
>      if (local_err) {
>          error_propagate(errp, local_err);
>          return;
> @@ -148,7 +141,6 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
>  
>      powernv_cpu_init(cpu, &local_err);
>      if (local_err) {
> -        object_unparent(obj);
>          error_propagate(errp, local_err);
>          return;
>      }
> diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
> index 4ba8563d49e4..f8a520a2fa2d 100644
> --- a/hw/ppc/spapr_cpu_core.c
> +++ b/hw/ppc/spapr_cpu_core.c
> @@ -111,7 +111,6 @@ static void spapr_cpu_core_realize_child(Object *child,
>      Error *local_err = NULL;
>      CPUState *cs = CPU(child);
>      PowerPCCPU *cpu = POWERPC_CPU(cs);
> -    Object *obj;
>  
>      object_property_set_bool(child, true, "realized", &local_err);
>      if (local_err) {
> @@ -123,21 +122,13 @@ static void spapr_cpu_core_realize_child(Object *child,
>          goto error;
>      }
>  
> -    obj = object_new(spapr->icp_type);
> -    object_property_add_child(child, "icp", obj, &error_abort);
> -    object_unref(obj);
> -    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(spapr),
> -                                   &error_abort);
> -    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
> -    object_property_set_bool(obj, true, "realized", &local_err);
> +    icp_create(cs, spapr->icp_type, XICS_FABRIC(spapr), &local_err);
>      if (local_err) {
> -        goto free_icp;
> +        goto error;
>      }
>  
>      return;
>  
> -free_icp:
> -    object_unparent(obj);
>  error:
>      error_propagate(errp, local_err);
>  }
> diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
> index 2df99be111ce..126b47dec38b 100644
> --- a/include/hw/ppc/xics.h
> +++ b/include/hw/ppc/xics.h
> @@ -212,4 +212,7 @@ typedef struct sPAPRMachineState sPAPRMachineState;
>  int xics_kvm_init(sPAPRMachineState *spapr, Error **errp);
>  void xics_spapr_init(sPAPRMachineState *spapr);
>  
> +Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi,
> +                   Error **errp);
> +
>  #endif /* XICS_H */
Greg Kurz Nov. 24, 2017, 9:55 a.m. UTC | #4
On Fri, 24 Nov 2017 13:51:00 +1100
David Gibson <david@gibson.dropbear.id.au> wrote:

> On Thu, Nov 23, 2017 at 02:29:31PM +0100, Cédric Le Goater wrote:
> > The sPAPR and the PowerNV core objects create the interrupt presenter
> > object of the CPUs in a very similar way. Let's provide a common
> > routine in which we use the presenter 'type' as a child identifier.
> > 
> > Signed-off-by: Cédric Le Goater <clg@kaod.org>  
> 
> One tiny nit.., apart from that
> 
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> 
> > ---
> >  hw/intc/xics.c          | 22 ++++++++++++++++++++++
> >  hw/ppc/pnv_core.c       | 10 +---------
> >  hw/ppc/spapr_cpu_core.c | 13 ++-----------
> >  include/hw/ppc/xics.h   |  3 +++
> >  4 files changed, 28 insertions(+), 20 deletions(-)
> > 
> > diff --git a/hw/intc/xics.c b/hw/intc/xics.c
> > index a1cc0e420c98..e4ccdff8f577 100644
> > --- a/hw/intc/xics.c
> > +++ b/hw/intc/xics.c
> > @@ -384,6 +384,28 @@ static const TypeInfo icp_info = {
> >      .class_size = sizeof(ICPStateClass),
> >  };
> >  
> > +Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi, Error **errp)
> > +{
> > +    Object *child = OBJECT(cs);  
> 
> In the original context 'child' made sense, since it was the child
> object of the core.  Here, it's misleading, since it's the parent of
> the xics link.  It's only used in a couple of places, so I suggest you

Oops yes :)

> just opencode OBJECT(cs) in each place.
> 

or rename child to owner, as it is done with DRCs and TCE tables.

> > +    Error *local_err = NULL;
> > +    Object *obj;
> > +
> > +    obj = object_new(type);
> > +    object_property_add_child(child, type, obj, &error_abort);
> > +    object_unref(obj);
> > +    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
> > +                                   &error_abort);
> > +    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
> > +    object_property_set_bool(obj, true, "realized", &local_err);
> > +    if (local_err) {
> > +        object_unparent(obj);
> > +        error_propagate(errp, local_err);
> > +        obj = NULL;
> > +    }
> > +
> > +    return obj;
> > +}
> > +
> >  /*
> >   * ICS: Source layer
> >   */
> > diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> > index 82ff440b3334..a066736846f8 100644
> > --- a/hw/ppc/pnv_core.c
> > +++ b/hw/ppc/pnv_core.c
> > @@ -126,7 +126,6 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
> >      Error *local_err = NULL;
> >      CPUState *cs = CPU(child);
> >      PowerPCCPU *cpu = POWERPC_CPU(cs);
> > -    Object *obj;
> >  
> >      object_property_set_bool(child, true, "realized", &local_err);
> >      if (local_err) {
> > @@ -134,13 +133,7 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
> >          return;
> >      }
> >  
> > -    obj = object_new(TYPE_PNV_ICP);
> > -    object_property_add_child(child, "icp", obj, NULL);
> > -    object_unref(obj);
> > -    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
> > -                                   &error_abort);
> > -    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
> > -    object_property_set_bool(obj, true, "realized", &local_err);
> > +    icp_create(cs, TYPE_PNV_ICP, xi, &local_err);
> >      if (local_err) {
> >          error_propagate(errp, local_err);
> >          return;
> > @@ -148,7 +141,6 @@ static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
> >  
> >      powernv_cpu_init(cpu, &local_err);
> >      if (local_err) {
> > -        object_unparent(obj);
> >          error_propagate(errp, local_err);
> >          return;
> >      }
> > diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
> > index 4ba8563d49e4..f8a520a2fa2d 100644
> > --- a/hw/ppc/spapr_cpu_core.c
> > +++ b/hw/ppc/spapr_cpu_core.c
> > @@ -111,7 +111,6 @@ static void spapr_cpu_core_realize_child(Object *child,
> >      Error *local_err = NULL;
> >      CPUState *cs = CPU(child);
> >      PowerPCCPU *cpu = POWERPC_CPU(cs);
> > -    Object *obj;
> >  
> >      object_property_set_bool(child, true, "realized", &local_err);
> >      if (local_err) {
> > @@ -123,21 +122,13 @@ static void spapr_cpu_core_realize_child(Object *child,
> >          goto error;
> >      }
> >  
> > -    obj = object_new(spapr->icp_type);
> > -    object_property_add_child(child, "icp", obj, &error_abort);
> > -    object_unref(obj);
> > -    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(spapr),
> > -                                   &error_abort);
> > -    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
> > -    object_property_set_bool(obj, true, "realized", &local_err);
> > +    icp_create(cs, spapr->icp_type, XICS_FABRIC(spapr), &local_err);
> >      if (local_err) {
> > -        goto free_icp;
> > +        goto error;
> >      }
> >  
> >      return;
> >  
> > -free_icp:
> > -    object_unparent(obj);
> >  error:
> >      error_propagate(errp, local_err);
> >  }
> > diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
> > index 2df99be111ce..126b47dec38b 100644
> > --- a/include/hw/ppc/xics.h
> > +++ b/include/hw/ppc/xics.h
> > @@ -212,4 +212,7 @@ typedef struct sPAPRMachineState sPAPRMachineState;
> >  int xics_kvm_init(sPAPRMachineState *spapr, Error **errp);
> >  void xics_spapr_init(sPAPRMachineState *spapr);
> >  
> > +Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi,
> > +                   Error **errp);
> > +
> >  #endif /* XICS_H */  
>
David Gibson Nov. 27, 2017, 7:20 a.m. UTC | #5
On Fri, Nov 24, 2017 at 10:55:47AM +0100, Greg Kurz wrote:
> On Fri, 24 Nov 2017 13:51:00 +1100
> David Gibson <david@gibson.dropbear.id.au> wrote:
> 
> > On Thu, Nov 23, 2017 at 02:29:31PM +0100, Cédric Le Goater wrote:
> > > The sPAPR and the PowerNV core objects create the interrupt presenter
> > > object of the CPUs in a very similar way. Let's provide a common
> > > routine in which we use the presenter 'type' as a child identifier.
> > > 
> > > Signed-off-by: Cédric Le Goater <clg@kaod.org>  
> > 
> > One tiny nit.., apart from that
> > 
> > Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> > 
> > > ---
> > >  hw/intc/xics.c          | 22 ++++++++++++++++++++++
> > >  hw/ppc/pnv_core.c       | 10 +---------
> > >  hw/ppc/spapr_cpu_core.c | 13 ++-----------
> > >  include/hw/ppc/xics.h   |  3 +++
> > >  4 files changed, 28 insertions(+), 20 deletions(-)
> > > 
> > > diff --git a/hw/intc/xics.c b/hw/intc/xics.c
> > > index a1cc0e420c98..e4ccdff8f577 100644
> > > --- a/hw/intc/xics.c
> > > +++ b/hw/intc/xics.c
> > > @@ -384,6 +384,28 @@ static const TypeInfo icp_info = {
> > >      .class_size = sizeof(ICPStateClass),
> > >  };
> > >  
> > > +Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi, Error **errp)
> > > +{
> > > +    Object *child = OBJECT(cs);  
> > 
> > In the original context 'child' made sense, since it was the child
> > object of the core.  Here, it's misleading, since it's the parent of
> > the xics link.  It's only used in a couple of places, so I suggest you
> 
> Oops yes :)
> 
> > just opencode OBJECT(cs) in each place.
> > 
> 
> or rename child to owner, as it is done with DRCs and TCE tables.

Sure.  Either's fine by me.
diff mbox

Patch

diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index a1cc0e420c98..e4ccdff8f577 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -384,6 +384,28 @@  static const TypeInfo icp_info = {
     .class_size = sizeof(ICPStateClass),
 };
 
+Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi, Error **errp)
+{
+    Object *child = OBJECT(cs);
+    Error *local_err = NULL;
+    Object *obj;
+
+    obj = object_new(type);
+    object_property_add_child(child, type, obj, &error_abort);
+    object_unref(obj);
+    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
+                                   &error_abort);
+    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
+    object_property_set_bool(obj, true, "realized", &local_err);
+    if (local_err) {
+        object_unparent(obj);
+        error_propagate(errp, local_err);
+        obj = NULL;
+    }
+
+    return obj;
+}
+
 /*
  * ICS: Source layer
  */
diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index 82ff440b3334..a066736846f8 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -126,7 +126,6 @@  static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
     Error *local_err = NULL;
     CPUState *cs = CPU(child);
     PowerPCCPU *cpu = POWERPC_CPU(cs);
-    Object *obj;
 
     object_property_set_bool(child, true, "realized", &local_err);
     if (local_err) {
@@ -134,13 +133,7 @@  static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
         return;
     }
 
-    obj = object_new(TYPE_PNV_ICP);
-    object_property_add_child(child, "icp", obj, NULL);
-    object_unref(obj);
-    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(xi),
-                                   &error_abort);
-    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
-    object_property_set_bool(obj, true, "realized", &local_err);
+    icp_create(cs, TYPE_PNV_ICP, xi, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return;
@@ -148,7 +141,6 @@  static void pnv_core_realize_child(Object *child, XICSFabric *xi, Error **errp)
 
     powernv_cpu_init(cpu, &local_err);
     if (local_err) {
-        object_unparent(obj);
         error_propagate(errp, local_err);
         return;
     }
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 4ba8563d49e4..f8a520a2fa2d 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -111,7 +111,6 @@  static void spapr_cpu_core_realize_child(Object *child,
     Error *local_err = NULL;
     CPUState *cs = CPU(child);
     PowerPCCPU *cpu = POWERPC_CPU(cs);
-    Object *obj;
 
     object_property_set_bool(child, true, "realized", &local_err);
     if (local_err) {
@@ -123,21 +122,13 @@  static void spapr_cpu_core_realize_child(Object *child,
         goto error;
     }
 
-    obj = object_new(spapr->icp_type);
-    object_property_add_child(child, "icp", obj, &error_abort);
-    object_unref(obj);
-    object_property_add_const_link(obj, ICP_PROP_XICS, OBJECT(spapr),
-                                   &error_abort);
-    object_property_add_const_link(obj, ICP_PROP_CPU, child, &error_abort);
-    object_property_set_bool(obj, true, "realized", &local_err);
+    icp_create(cs, spapr->icp_type, XICS_FABRIC(spapr), &local_err);
     if (local_err) {
-        goto free_icp;
+        goto error;
     }
 
     return;
 
-free_icp:
-    object_unparent(obj);
 error:
     error_propagate(errp, local_err);
 }
diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 2df99be111ce..126b47dec38b 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -212,4 +212,7 @@  typedef struct sPAPRMachineState sPAPRMachineState;
 int xics_kvm_init(sPAPRMachineState *spapr, Error **errp);
 void xics_spapr_init(sPAPRMachineState *spapr);
 
+Object *icp_create(CPUState *cs, const char *type, XICSFabric *xi,
+                   Error **errp);
+
 #endif /* XICS_H */