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[88.21.68.240]) by smtp.gmail.com with ESMTPSA id r28sm2896072wrr.94.2019.09.24.02.46.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Sep 2019 02:46:18 -0700 (PDT) Subject: Re: [PATCH 4/4] xics: Merge TYPE_ICS_BASE and TYPE_ICS_SIMPLE classes To: David Gibson , qemu-ppc@nongnu.org, clg@kaod.org References: <20190924045952.11412-1-david@gibson.dropbear.id.au> <20190924045952.11412-5-david@gibson.dropbear.id.au> From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= Openpgp: id=89C1E78F601EE86C867495CBA2A3FD6EDEADC0DE; url=http://pgp.mit.edu/pks/lookup?op=get&search=0xA2A3FD6EDEADC0DE Message-ID: <2f21edeb-de3f-a9aa-cbfe-b45e2e0bf63d@redhat.com> Date: Tue, 24 Sep 2019 11:46:18 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190924045952.11412-5-david@gibson.dropbear.id.au> Content-Language: en-US X-MC-Unique: gXvA8Dg-NCO8vOscbONRsA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: gkurz@kaod.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 9/24/19 6:59 AM, David Gibson wrote: > TYPE_ICS_SIMPLE is the only subtype of TYPE_ICS_BASE that's ever > instantiated, and the only one we're ever likely to want. The > existence of different classes is just a hang over from when we > (misguidedly) had separate subtypes for the KVM and non-KVM version of > the device. >=20 > So, collapse the two classes together into just TYPE_ICS. >=20 > Signed-off-by: David Gibson > --- > hw/intc/xics.c | 57 ++++++++++++++++--------------------------- > hw/ppc/pnv_psi.c | 2 +- > hw/ppc/spapr_irq.c | 4 +-- > include/hw/ppc/xics.h | 17 ++----------- > 4 files changed, 26 insertions(+), 54 deletions(-) >=20 > diff --git a/hw/intc/xics.c b/hw/intc/xics.c > index 9ae51bbc76..388dbba870 100644 > --- a/hw/intc/xics.c > +++ b/hw/intc/xics.c > @@ -555,7 +555,7 @@ static void ics_reset_irq(ICSIRQState *irq) > =20 > static void ics_reset(DeviceState *dev) > { > - ICSState *ics =3D ICS_BASE(dev); > + ICSState *ics =3D ICS(dev); > int i; > uint8_t flags[ics->nr_irqs]; > =20 > @@ -573,7 +573,7 @@ static void ics_reset(DeviceState *dev) > if (kvm_irqchip_in_kernel()) { > Error *local_err =3D NULL; > =20 > - ics_set_kvm_state(ICS_BASE(dev), &local_err); > + ics_set_kvm_state(ICS(dev), &local_err); > if (local_err) { > error_report_err(local_err); > } > @@ -587,7 +587,7 @@ static void ics_reset_handler(void *dev) > =20 > static void ics_realize(DeviceState *dev, Error **errp) > { > - ICSState *ics =3D ICS_BASE(dev); > + ICSState *ics =3D ICS(dev); > Error *local_err =3D NULL; > Object *obj; > =20 > @@ -609,26 +609,14 @@ static void ics_realize(DeviceState *dev, Error **e= rrp) > qemu_register_reset(ics_reset_handler, ics); > } > =20 > -static void ics_simple_class_init(ObjectClass *klass, void *data) > +static void ics_instance_init(Object *obj) > { > -} > - > -static const TypeInfo ics_simple_info =3D { > - .name =3D TYPE_ICS_SIMPLE, > - .parent =3D TYPE_ICS_BASE, > - .instance_size =3D sizeof(ICSState), > - .class_init =3D ics_simple_class_init, > - .class_size =3D sizeof(ICSStateClass), > -}; > - > -static void ics_base_instance_init(Object *obj) > -{ > - ICSState *ics =3D ICS_BASE(obj); > + ICSState *ics =3D ICS(obj); > =20 > ics->offset =3D XICS_IRQ_BASE; > } > =20 > -static int ics_base_pre_save(void *opaque) > +static int ics_pre_save(void *opaque) > { > ICSState *ics =3D opaque; > =20 > @@ -639,7 +627,7 @@ static int ics_base_pre_save(void *opaque) > return 0; > } > =20 > -static int ics_base_post_load(void *opaque, int version_id) > +static int ics_post_load(void *opaque, int version_id) > { > ICSState *ics =3D opaque; > =20 > @@ -657,7 +645,7 @@ static int ics_base_post_load(void *opaque, int versi= on_id) > return 0; > } > =20 > -static const VMStateDescription vmstate_ics_base_irq =3D { > +static const VMStateDescription vmstate_ics_irq =3D { > .name =3D "ics/irq", > .version_id =3D 2, > .minimum_version_id =3D 1, > @@ -671,46 +659,44 @@ static const VMStateDescription vmstate_ics_base_ir= q =3D { > }, > }; > =20 > -static const VMStateDescription vmstate_ics_base =3D { > +static const VMStateDescription vmstate_ics =3D { > .name =3D "ics", > .version_id =3D 1, > .minimum_version_id =3D 1, > - .pre_save =3D ics_base_pre_save, > - .post_load =3D ics_base_post_load, > + .pre_save =3D ics_pre_save, > + .post_load =3D ics_post_load, > .fields =3D (VMStateField[]) { > /* Sanity check */ > VMSTATE_UINT32_EQUAL(nr_irqs, ICSState, NULL), > =20 > VMSTATE_STRUCT_VARRAY_POINTER_UINT32(irqs, ICSState, nr_irqs, > - vmstate_ics_base_irq, > + vmstate_ics_irq, > ICSIRQState), > VMSTATE_END_OF_LIST() > }, > }; > =20 > -static Property ics_base_properties[] =3D { > +static Property ics_properties[] =3D { > DEFINE_PROP_UINT32("nr-irqs", ICSState, nr_irqs, 0), > DEFINE_PROP_END_OF_LIST(), > }; > =20 > -static void ics_base_class_init(ObjectClass *klass, void *data) > +static void ics_class_init(ObjectClass *klass, void *data) > { > DeviceClass *dc =3D DEVICE_CLASS(klass); > =20 > dc->realize =3D ics_realize; > - dc->props =3D ics_base_properties; > + dc->props =3D ics_properties; > dc->reset =3D ics_reset; > - dc->vmsd =3D &vmstate_ics_base; > + dc->vmsd =3D &vmstate_ics; > } > =20 > -static const TypeInfo ics_base_info =3D { > - .name =3D TYPE_ICS_BASE, > +static const TypeInfo ics_info =3D { > + .name =3D TYPE_ICS, > .parent =3D TYPE_DEVICE, Ah now I see this, OK. > - .abstract =3D true, > .instance_size =3D sizeof(ICSState), > - .instance_init =3D ics_base_instance_init, > - .class_init =3D ics_base_class_init, > - .class_size =3D sizeof(ICSStateClass), > + .instance_init =3D ics_instance_init, > + .class_init =3D ics_class_init, > }; > =20 > static const TypeInfo xics_fabric_info =3D { > @@ -749,8 +735,7 @@ void ics_set_irq_type(ICSState *ics, int srcno, bool = lsi) > =20 > static void xics_register_types(void) > { > - type_register_static(&ics_simple_info); > - type_register_static(&ics_base_info); > + type_register_static(&ics_info); > type_register_static(&icp_info); > type_register_static(&xics_fabric_info); > } > diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c > index 8ea81e9d8e..a997f16bb4 100644 > --- a/hw/ppc/pnv_psi.c > +++ b/hw/ppc/pnv_psi.c > @@ -469,7 +469,7 @@ static void pnv_psi_power8_instance_init(Object *obj) > Pnv8Psi *psi8 =3D PNV8_PSI(obj); > =20 > object_initialize_child(obj, "ics-psi", &psi8->ics, sizeof(psi8->ic= s), > - TYPE_ICS_SIMPLE, &error_abort, NULL); > + TYPE_ICS, &error_abort, NULL); > } > =20 > static const uint8_t irq_to_xivr[] =3D { > diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c > index ac189c5796..6c45d2a3c0 100644 > --- a/hw/ppc/spapr_irq.c > +++ b/hw/ppc/spapr_irq.c > @@ -98,7 +98,7 @@ static void spapr_irq_init_xics(SpaprMachineState *spap= r, int nr_irqs, > Object *obj; > Error *local_err =3D NULL; > =20 > - obj =3D object_new(TYPE_ICS_SIMPLE); > + obj =3D object_new(TYPE_ICS); > object_property_add_child(OBJECT(spapr), "ics", obj, &error_abort); > object_property_add_const_link(obj, ICS_PROP_XICS, OBJECT(spapr), > &error_fatal); > @@ -109,7 +109,7 @@ static void spapr_irq_init_xics(SpaprMachineState *sp= apr, int nr_irqs, > return; > } > =20 > - spapr->ics =3D ICS_BASE(obj); > + spapr->ics =3D ICS(obj); > =20 > xics_spapr_init(spapr); > } > diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h > index 92628e7cab..d8cf206a69 100644 > --- a/include/hw/ppc/xics.h > +++ b/include/hw/ppc/xics.h > @@ -89,21 +89,8 @@ struct PnvICPState { > uint32_t links[3]; > }; > =20 > -#define TYPE_ICS_BASE "ics-base" > -#define ICS_BASE(obj) OBJECT_CHECK(ICSState, (obj), TYPE_ICS_BASE) > - > -/* Retain ics for sPAPR for migration from existing sPAPR guests */ > -#define TYPE_ICS_SIMPLE "ics" > -#define ICS_SIMPLE(obj) OBJECT_CHECK(ICSState, (obj), TYPE_ICS_SIMPLE) > - > -#define ICS_BASE_CLASS(klass) \ > - OBJECT_CLASS_CHECK(ICSStateClass, (klass), TYPE_ICS_BASE) > -#define ICS_BASE_GET_CLASS(obj) \ > - OBJECT_GET_CLASS(ICSStateClass, (obj), TYPE_ICS_BASE) > - > -struct ICSStateClass { > - DeviceClass parent_class; > -}; > +#define TYPE_ICS "ics" > +#define ICS(obj) OBJECT_CHECK(ICSState, (obj), TYPE_ICS) > =20 > struct ICSState { > /*< private >*/ >=20