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Re: [Qemu-devel] [RFC] ppc: define spapr core types statically
From: |
Igor Mammedov |
Subject: |
Re: [Qemu-devel] [RFC] ppc: define spapr core types statically |
Date: |
Fri, 29 Sep 2017 08:44:21 +0200 |
On Wed, 27 Sep 2017 18:18:34 +0200
Greg Kurz <address@hidden> wrote:
> On Wed, 27 Sep 2017 13:49:17 +0200
> Igor Mammedov <address@hidden> wrote:
>
> > --
> > patch does 3 things at the same time and should be split but
> > it has 'host' consolidation is it as well to demonstrate idea
> > --
> >
> > spapr core type definition doesn't have any fields that
> > require it to be defined at runtime. So replace code
> > that fills in TypeInfo at runtime with static TypeInfo
> > array that does the same at complie time.
> >
> > And replace sPAPRCPUCoreClass::cpu_class with cpu
> > type name since were used just to get that at points
> > it were accessed.
> >
> > While at that, consolidate move 'host' core type
> > registration into spapr_cpu_core.c, similar like
> > it's done in x86 target.
> >
>
> This looks nice indeed (just one remark, see below).
>
> Will you re-post as a patch series or do you prefer I do it ?
I'll repost it as part of cpu_model removal series (ppc part)
>
> > Signed-off-by: Igor Mammedov <address@hidden>
> > ---
> > include/hw/ppc/spapr_cpu_core.h | 5 ++-
> > hw/ppc/spapr.c | 6 +--
> > hw/ppc/spapr_cpu_core.c | 93
> > ++++++++++++++++-------------------------
> > target/ppc/kvm.c | 11 -----
> > 4 files changed, 41 insertions(+), 74 deletions(-)
> >
> > diff --git a/include/hw/ppc/spapr_cpu_core.h
> > b/include/hw/ppc/spapr_cpu_core.h
> > index 93051e9..42765de 100644
> > --- a/include/hw/ppc/spapr_cpu_core.h
> > +++ b/include/hw/ppc/spapr_cpu_core.h
> > @@ -21,6 +21,8 @@
> > #define SPAPR_CPU_CORE_GET_CLASS(obj) \
> > OBJECT_GET_CLASS(sPAPRCPUCoreClass, (obj), TYPE_SPAPR_CPU_CORE)
> >
> > +#define SPAPR_CPU_CORE_TYPE_NAME(model) model "-" TYPE_SPAPR_CPU_CORE
> > +
> > typedef struct sPAPRCPUCore {
> > /*< private >*/
> > CPUCore parent_obj;
> > @@ -32,9 +34,8 @@ typedef struct sPAPRCPUCore {
> >
> > typedef struct sPAPRCPUCoreClass {
> > DeviceClass parent_class;
> > - ObjectClass *cpu_class;
> > + const char *cpu_type;
> > } sPAPRCPUCoreClass;
> >
> > char *spapr_get_cpu_core_type(const char *model);
> > -void spapr_cpu_core_class_init(ObjectClass *oc, void *data);
> > #endif
> > diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> > index 8c1a437..00cfe9a 100644
> > --- a/hw/ppc/spapr.c
> > +++ b/hw/ppc/spapr.c
> > @@ -3125,8 +3125,7 @@ void spapr_core_release(DeviceState *dev)
> > if (smc->pre_2_10_has_unused_icps) {
> > sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
> > sPAPRCPUCoreClass *scc = SPAPR_CPU_CORE_GET_CLASS(OBJECT(cc));
> > - const char *typename = object_class_get_name(scc->cpu_class);
> > - size_t size = object_type_get_instance_size(typename);
> > + size_t size = object_type_get_instance_size(scc->cpu_type);
> > int i;
> >
> > for (i = 0; i < cc->nr_threads; i++) {
> > @@ -3222,8 +3221,7 @@ static void spapr_core_plug(HotplugHandler
> > *hotplug_dev, DeviceState *dev,
> >
> > if (smc->pre_2_10_has_unused_icps) {
> > sPAPRCPUCoreClass *scc = SPAPR_CPU_CORE_GET_CLASS(OBJECT(cc));
> > - const char *typename = object_class_get_name(scc->cpu_class);
> > - size_t size = object_type_get_instance_size(typename);
> > + size_t size = object_type_get_instance_size(scc->cpu_type);
> > int i;
> >
> > for (i = 0; i < cc->nr_threads; i++) {
> > diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
> > index 5bea4c9..8a18eaf 100644
> > --- a/hw/ppc/spapr_cpu_core.c
> > +++ b/hw/ppc/spapr_cpu_core.c
> > @@ -104,8 +104,7 @@ static void spapr_cpu_core_unrealizefn(DeviceState
> > *dev, Error **errp)
> > {
> > sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
> > sPAPRCPUCoreClass *scc = SPAPR_CPU_CORE_GET_CLASS(OBJECT(dev));
> > - const char *typename = object_class_get_name(scc->cpu_class);
> > - size_t size = object_type_get_instance_size(typename);
> > + size_t size = object_type_get_instance_size(scc->cpu_type);
> > CPUCore *cc = CPU_CORE(dev);
> > int i;
> >
> > @@ -166,8 +165,7 @@ static void spapr_cpu_core_realize(DeviceState *dev,
> > Error **errp)
> > sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
> > sPAPRCPUCoreClass *scc = SPAPR_CPU_CORE_GET_CLASS(OBJECT(dev));
> > CPUCore *cc = CPU_CORE(OBJECT(dev));
> > - const char *typename = object_class_get_name(scc->cpu_class);
> > - size_t size = object_type_get_instance_size(typename);
> > + size_t size = object_type_get_instance_size(scc->cpu_type);
> > Error *local_err = NULL;
> > void *obj;
> > int i, j;
> > @@ -186,7 +184,7 @@ static void spapr_cpu_core_realize(DeviceState *dev,
> > Error **errp)
> >
> > obj = sc->threads + i * size;
> >
> > - object_initialize(obj, size, typename);
> > + object_initialize(obj, size, scc->cpu_type);
> > cs = CPU(obj);
> > cpu = POWERPC_CPU(cs);
> > cs->cpu_index = cc->core_id + i;
> > @@ -231,42 +229,12 @@ err:
> > error_propagate(errp, local_err);
> > }
> >
> > -static const char *spapr_core_models[] = {
> > - /* 970 */
> > - "970_v2.2",
> > -
> > - /* 970MP variants */
> > - "970mp_v1.0",
> > - "970mp_v1.1",
> > -
> > - /* POWER5+ */
> > - "power5+_v2.1",
> > -
> > - /* POWER7 */
> > - "power7_v2.3",
> > -
> > - /* POWER7+ */
> > - "power7+_v2.1",
> > -
> > - /* POWER8 */
> > - "power8_v2.0",
> > -
> > - /* POWER8E */
> > - "power8e_v2.1",
> > -
> > - /* POWER8NVL */
> > - "power8nvl_v1.0",
> > -
> > - /* POWER9 */
> > - "power9_v1.0",
> > -};
> > -
> > static Property spapr_cpu_core_properties[] = {
> > DEFINE_PROP_INT32("node-id", sPAPRCPUCore, node_id,
> > CPU_UNSET_NUMA_NODE_ID),
> > DEFINE_PROP_END_OF_LIST()
> > };
> >
> > -void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
> > +static void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
> > {
> > DeviceClass *dc = DEVICE_CLASS(oc);
> > sPAPRCPUCoreClass *scc = SPAPR_CPU_CORE_CLASS(oc);
> > @@ -274,36 +242,47 @@ void spapr_cpu_core_class_init(ObjectClass *oc, void
> > *data)
> > dc->realize = spapr_cpu_core_realize;
> > dc->unrealize = spapr_cpu_core_unrealizefn;
> > dc->props = spapr_cpu_core_properties;
> > - scc->cpu_class = cpu_class_by_name(TYPE_POWERPC_CPU, data);
> > - g_assert(scc->cpu_class);
> > + scc->cpu_type = data;
>
> Maybe assert data isn't NULL ?
I'll fix it up on respin
- Re: [Qemu-devel] [PATCH] spapr: move registration of "host" CPU core type to machine code, (continued)
- Re: [Qemu-devel] [PATCH] spapr: move registration of "host" CPU core type to machine code, David Gibson, 2017/09/27
- Re: [Qemu-devel] [PATCH] spapr: move registration of "host" CPU core type to machine code, Igor Mammedov, 2017/09/27
- [Qemu-devel] [RFC] ppc: define spapr core types statically, Igor Mammedov, 2017/09/27
- Re: [Qemu-devel] [RFC] ppc: define spapr core types statically, Greg Kurz, 2017/09/27
- Re: [Qemu-devel] [RFC] ppc: define spapr core types statically, David Gibson, 2017/09/28
- Re: [Qemu-devel] [RFC] ppc: define spapr core types statically,
Igor Mammedov <=