diff mbox series

[v2,15/19] ppc/pnv: Add big-core machine property

Message ID 20240712120247.477133-16-npiggin@gmail.com (mailing list archive)
State New, archived
Headers show
Series ppc/pnv: Better big-core model, lpar-per-core, PC unit | expand

Commit Message

Nicholas Piggin July 12, 2024, 12:02 p.m. UTC
Big-core implementation is complete, so expose it as a machine
property that may be set with big-core=on option on powernv9 and
powernv10 machines.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 hw/ppc/pnv.c      | 62 +++++++++++++++++++++++++++++++++++------------
 hw/ppc/pnv_core.c |  2 +-
 2 files changed, 47 insertions(+), 17 deletions(-)

Comments

Cédric Le Goater July 13, 2024, 7:24 a.m. UTC | #1
On 7/12/24 14:02, Nicholas Piggin wrote:
> Big-core implementation is complete, so expose it as a machine
> property that may be set with big-core=on option on powernv9 and
> powernv10 machines.
> 
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---
>   hw/ppc/pnv.c      | 62 +++++++++++++++++++++++++++++++++++------------
>   hw/ppc/pnv_core.c |  2 +-
>   2 files changed, 47 insertions(+), 17 deletions(-)
> 
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index 24f7c007ce..e405d416ff 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -2338,6 +2338,7 @@ static void pnv_chip_core_realize(PnvChip *chip, Error **errp)
>                                    &error_abort);
>   
>           pnv_core->tod_state.big_core_quirk = pmc->quirk_tb_big_core;
> +        pnv_core->big_core = chip->big_core;


This can be dropped with the previous change.

>           qdev_realize(DEVICE(pnv_core), NULL, &error_fatal);
>   
> @@ -2578,6 +2579,34 @@ static int pnv10_xive_match_nvt(XiveFabric *xfb, uint8_t format,
>       return total_count;
>   }
>   
> +static bool pnv_machine_get_big_core(Object *obj, Error **errp)
> +{
> +    PnvMachineState *pnv = PNV_MACHINE(obj);
> +    return pnv->big_core;
> +}
> +
> +static void pnv_machine_set_big_core(Object *obj, bool value, Error **errp)
> +{
> +    PnvMachineState *pnv = PNV_MACHINE(obj);
> +    pnv->big_core = value;
> +}
> +
> +static bool pnv_machine_get_hb(Object *obj, Error **errp)
> +{
> +    PnvMachineState *pnv = PNV_MACHINE(obj);
> +
> +    return !!pnv->fw_load_addr;
> +}
> +
> +static void pnv_machine_set_hb(Object *obj, bool value, Error **errp)
> +{
> +    PnvMachineState *pnv = PNV_MACHINE(obj);
> +
> +    if (value) {
> +        pnv->fw_load_addr = 0x8000000;
> +    }
> +}
> +
>   static void pnv_machine_power8_class_init(ObjectClass *oc, void *data)
>   {
>       MachineClass *mc = MACHINE_CLASS(oc);
> @@ -2629,6 +2658,12 @@ static void pnv_machine_power9_class_init(ObjectClass *oc, void *data)
>       pmc->dt_power_mgt = pnv_dt_power_mgt;
>   
>       machine_class_allow_dynamic_sysbus_dev(mc, TYPE_PNV_PHB);
> +
> +    object_class_property_add_bool(oc, "big-core",
> +                                   pnv_machine_get_big_core,
> +                                   pnv_machine_set_big_core);
> +    object_class_property_set_description(oc, "big-core",
> +                              "Use big-core (aka fused-core) mode");
>   }
>   
>   static void pnv_machine_p10_common_class_init(ObjectClass *oc, void *data)
> @@ -2665,6 +2700,17 @@ static void pnv_machine_power10_class_init(ObjectClass *oc, void *data)
>   
>       pnv_machine_p10_common_class_init(oc, data);
>       mc->desc = "IBM PowerNV (Non-Virtualized) POWER10";
> +
> +    /*
> +     * This is the parent of POWER10 Rainier class, so properies go here
> +     * rather than common init (which would add them to both parent and
> +     * child which is invalid).
> +     */
> +    object_class_property_add_bool(oc, "big-core",
> +                                   pnv_machine_get_big_core,
> +                                   pnv_machine_set_big_core);
> +    object_class_property_set_description(oc, "big-core",
> +                              "Use big-core (aka fused-core) mode");
>   }
>   
>   static void pnv_machine_p10_rainier_class_init(ObjectClass *oc, void *data)
> @@ -2677,22 +2723,6 @@ static void pnv_machine_p10_rainier_class_init(ObjectClass *oc, void *data)
>       pmc->i2c_init = pnv_rainier_i2c_init;
>   }
>   
> -static bool pnv_machine_get_hb(Object *obj, Error **errp)
> -{
> -    PnvMachineState *pnv = PNV_MACHINE(obj);
> -
> -    return !!pnv->fw_load_addr;
> -}
> -
> -static void pnv_machine_set_hb(Object *obj, bool value, Error **errp)
> -{
> -    PnvMachineState *pnv = PNV_MACHINE(obj);
> -
> -    if (value) {
> -        pnv->fw_load_addr = 0x8000000;
> -    }
> -}
> -
>   static void pnv_cpu_do_nmi_on_cpu(CPUState *cs, run_on_cpu_data arg)
>   {
>       CPUPPCState *env = cpu_env(cs);
> diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> index a96ec4e2b9..238a4cd4ab 100644
> --- a/hw/ppc/pnv_core.c
> +++ b/hw/ppc/pnv_core.c
> @@ -296,7 +296,7 @@ static void pnv_core_realize(DeviceState *dev, Error **errp)
>           obj = object_new(typename);
>           cpu = POWERPC_CPU(obj);
>   
> -        pc->threads[i] = POWERPC_CPU(obj);
> +        pc->threads[i] = cpu;
>           if (cc->nr_threads > 1) {
>               cpu->env.has_smt_siblings = true;
>           }

Superfluous change ?


Thanks,

C.
Nicholas Piggin July 15, 2024, 6:32 a.m. UTC | #2
On Sat Jul 13, 2024 at 5:24 PM AEST, Cédric Le Goater wrote:
> On 7/12/24 14:02, Nicholas Piggin wrote:
> > Big-core implementation is complete, so expose it as a machine
> > property that may be set with big-core=on option on powernv9 and
> > powernv10 machines.
> > 
> > Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> > ---
> >   hw/ppc/pnv.c      | 62 +++++++++++++++++++++++++++++++++++------------
> >   hw/ppc/pnv_core.c |  2 +-
> >   2 files changed, 47 insertions(+), 17 deletions(-)
> > 
> > diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> > index 24f7c007ce..e405d416ff 100644
> > --- a/hw/ppc/pnv.c
> > +++ b/hw/ppc/pnv.c
> > @@ -2338,6 +2338,7 @@ static void pnv_chip_core_realize(PnvChip *chip, Error **errp)
> >                                    &error_abort);
> >   
> >           pnv_core->tod_state.big_core_quirk = pmc->quirk_tb_big_core;
> > +        pnv_core->big_core = chip->big_core;
>
>
> This can be dropped with the previous change.

Sounds good, hopefully I can get it to work :P

>
> >           qdev_realize(DEVICE(pnv_core), NULL, &error_fatal);
> >   
> > @@ -2578,6 +2579,34 @@ static int pnv10_xive_match_nvt(XiveFabric *xfb, uint8_t format,
> >       return total_count;
> >   }
> >   
> > +static bool pnv_machine_get_big_core(Object *obj, Error **errp)
> > +{
> > +    PnvMachineState *pnv = PNV_MACHINE(obj);
> > +    return pnv->big_core;
> > +}
> > +
> > +static void pnv_machine_set_big_core(Object *obj, bool value, Error **errp)
> > +{
> > +    PnvMachineState *pnv = PNV_MACHINE(obj);
> > +    pnv->big_core = value;
> > +}
> > +
> > +static bool pnv_machine_get_hb(Object *obj, Error **errp)
> > +{
> > +    PnvMachineState *pnv = PNV_MACHINE(obj);
> > +
> > +    return !!pnv->fw_load_addr;
> > +}
> > +
> > +static void pnv_machine_set_hb(Object *obj, bool value, Error **errp)
> > +{
> > +    PnvMachineState *pnv = PNV_MACHINE(obj);
> > +
> > +    if (value) {
> > +        pnv->fw_load_addr = 0x8000000;
> > +    }
> > +}
> > +
> >   static void pnv_machine_power8_class_init(ObjectClass *oc, void *data)
> >   {
> >       MachineClass *mc = MACHINE_CLASS(oc);
> > @@ -2629,6 +2658,12 @@ static void pnv_machine_power9_class_init(ObjectClass *oc, void *data)
> >       pmc->dt_power_mgt = pnv_dt_power_mgt;
> >   
> >       machine_class_allow_dynamic_sysbus_dev(mc, TYPE_PNV_PHB);
> > +
> > +    object_class_property_add_bool(oc, "big-core",
> > +                                   pnv_machine_get_big_core,
> > +                                   pnv_machine_set_big_core);
> > +    object_class_property_set_description(oc, "big-core",
> > +                              "Use big-core (aka fused-core) mode");
> >   }
> >   
> >   static void pnv_machine_p10_common_class_init(ObjectClass *oc, void *data)
> > @@ -2665,6 +2700,17 @@ static void pnv_machine_power10_class_init(ObjectClass *oc, void *data)
> >   
> >       pnv_machine_p10_common_class_init(oc, data);
> >       mc->desc = "IBM PowerNV (Non-Virtualized) POWER10";
> > +
> > +    /*
> > +     * This is the parent of POWER10 Rainier class, so properies go here
> > +     * rather than common init (which would add them to both parent and
> > +     * child which is invalid).
> > +     */
> > +    object_class_property_add_bool(oc, "big-core",
> > +                                   pnv_machine_get_big_core,
> > +                                   pnv_machine_set_big_core);
> > +    object_class_property_set_description(oc, "big-core",
> > +                              "Use big-core (aka fused-core) mode");
> >   }
> >   
> >   static void pnv_machine_p10_rainier_class_init(ObjectClass *oc, void *data)
> > @@ -2677,22 +2723,6 @@ static void pnv_machine_p10_rainier_class_init(ObjectClass *oc, void *data)
> >       pmc->i2c_init = pnv_rainier_i2c_init;
> >   }
> >   
> > -static bool pnv_machine_get_hb(Object *obj, Error **errp)
> > -{
> > -    PnvMachineState *pnv = PNV_MACHINE(obj);
> > -
> > -    return !!pnv->fw_load_addr;
> > -}
> > -
> > -static void pnv_machine_set_hb(Object *obj, bool value, Error **errp)
> > -{
> > -    PnvMachineState *pnv = PNV_MACHINE(obj);
> > -
> > -    if (value) {
> > -        pnv->fw_load_addr = 0x8000000;
> > -    }
> > -}
> > -
> >   static void pnv_cpu_do_nmi_on_cpu(CPUState *cs, run_on_cpu_data arg)
> >   {
> >       CPUPPCState *env = cpu_env(cs);
> > diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> > index a96ec4e2b9..238a4cd4ab 100644
> > --- a/hw/ppc/pnv_core.c
> > +++ b/hw/ppc/pnv_core.c
> > @@ -296,7 +296,7 @@ static void pnv_core_realize(DeviceState *dev, Error **errp)
> >           obj = object_new(typename);
> >           cpu = POWERPC_CPU(obj);
> >   
> > -        pc->threads[i] = POWERPC_CPU(obj);
> > +        pc->threads[i] = cpu;
> >           if (cc->nr_threads > 1) {
> >               cpu->env.has_smt_siblings = true;
> >           }
>
> Superfluous change ?

Yup, snuck in. Good catch.

Thanks,
Nick
diff mbox series

Patch

diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 24f7c007ce..e405d416ff 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -2338,6 +2338,7 @@  static void pnv_chip_core_realize(PnvChip *chip, Error **errp)
                                  &error_abort);
 
         pnv_core->tod_state.big_core_quirk = pmc->quirk_tb_big_core;
+        pnv_core->big_core = chip->big_core;
 
         qdev_realize(DEVICE(pnv_core), NULL, &error_fatal);
 
@@ -2578,6 +2579,34 @@  static int pnv10_xive_match_nvt(XiveFabric *xfb, uint8_t format,
     return total_count;
 }
 
+static bool pnv_machine_get_big_core(Object *obj, Error **errp)
+{
+    PnvMachineState *pnv = PNV_MACHINE(obj);
+    return pnv->big_core;
+}
+
+static void pnv_machine_set_big_core(Object *obj, bool value, Error **errp)
+{
+    PnvMachineState *pnv = PNV_MACHINE(obj);
+    pnv->big_core = value;
+}
+
+static bool pnv_machine_get_hb(Object *obj, Error **errp)
+{
+    PnvMachineState *pnv = PNV_MACHINE(obj);
+
+    return !!pnv->fw_load_addr;
+}
+
+static void pnv_machine_set_hb(Object *obj, bool value, Error **errp)
+{
+    PnvMachineState *pnv = PNV_MACHINE(obj);
+
+    if (value) {
+        pnv->fw_load_addr = 0x8000000;
+    }
+}
+
 static void pnv_machine_power8_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
@@ -2629,6 +2658,12 @@  static void pnv_machine_power9_class_init(ObjectClass *oc, void *data)
     pmc->dt_power_mgt = pnv_dt_power_mgt;
 
     machine_class_allow_dynamic_sysbus_dev(mc, TYPE_PNV_PHB);
+
+    object_class_property_add_bool(oc, "big-core",
+                                   pnv_machine_get_big_core,
+                                   pnv_machine_set_big_core);
+    object_class_property_set_description(oc, "big-core",
+                              "Use big-core (aka fused-core) mode");
 }
 
 static void pnv_machine_p10_common_class_init(ObjectClass *oc, void *data)
@@ -2665,6 +2700,17 @@  static void pnv_machine_power10_class_init(ObjectClass *oc, void *data)
 
     pnv_machine_p10_common_class_init(oc, data);
     mc->desc = "IBM PowerNV (Non-Virtualized) POWER10";
+
+    /*
+     * This is the parent of POWER10 Rainier class, so properies go here
+     * rather than common init (which would add them to both parent and
+     * child which is invalid).
+     */
+    object_class_property_add_bool(oc, "big-core",
+                                   pnv_machine_get_big_core,
+                                   pnv_machine_set_big_core);
+    object_class_property_set_description(oc, "big-core",
+                              "Use big-core (aka fused-core) mode");
 }
 
 static void pnv_machine_p10_rainier_class_init(ObjectClass *oc, void *data)
@@ -2677,22 +2723,6 @@  static void pnv_machine_p10_rainier_class_init(ObjectClass *oc, void *data)
     pmc->i2c_init = pnv_rainier_i2c_init;
 }
 
-static bool pnv_machine_get_hb(Object *obj, Error **errp)
-{
-    PnvMachineState *pnv = PNV_MACHINE(obj);
-
-    return !!pnv->fw_load_addr;
-}
-
-static void pnv_machine_set_hb(Object *obj, bool value, Error **errp)
-{
-    PnvMachineState *pnv = PNV_MACHINE(obj);
-
-    if (value) {
-        pnv->fw_load_addr = 0x8000000;
-    }
-}
-
 static void pnv_cpu_do_nmi_on_cpu(CPUState *cs, run_on_cpu_data arg)
 {
     CPUPPCState *env = cpu_env(cs);
diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index a96ec4e2b9..238a4cd4ab 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -296,7 +296,7 @@  static void pnv_core_realize(DeviceState *dev, Error **errp)
         obj = object_new(typename);
         cpu = POWERPC_CPU(obj);
 
-        pc->threads[i] = POWERPC_CPU(obj);
+        pc->threads[i] = cpu;
         if (cc->nr_threads > 1) {
             cpu->env.has_smt_siblings = true;
         }