Re: [PATCH v2 06/13] pnv/xive: Use device_class_set_parent_realize()

[David Gibson]

On Thu, Dec 19, 2019 at 07:11:48PM +0100, Cédric Le Goater wrote:
> From: Greg Kurz <address@hidden>
> 
> The XIVE router base class currently inherits an empty realize hook
> from the sysbus device base class, but it will soon implement one
> of its own to perform some sanity checks. Do the preliminary plumbing
> to have it called.
> 
> Signed-off-by: Greg Kurz <address@hidden>
> Signed-off-by: Cédric Le Goater <address@hidden>

Reviewed-by: David Gibson <address@hidden>

But will need a rebase due to changes earlier in the series.

> ---
>  include/hw/ppc/pnv_xive.h | 10 ++++++++++
>  hw/intc/pnv_xive.c        | 10 ++++++++++
>  2 files changed, 20 insertions(+)
> 
> diff --git a/include/hw/ppc/pnv_xive.h b/include/hw/ppc/pnv_xive.h
> index 4d641db691c8..ba9bbeab88c3 100644
> --- a/include/hw/ppc/pnv_xive.h
> +++ b/include/hw/ppc/pnv_xive.h
> @@ -16,6 +16,10 @@ struct PnvChip;
>  
>  #define TYPE_PNV_XIVE "pnv-xive"
>  #define PNV_XIVE(obj) OBJECT_CHECK(PnvXive, (obj), TYPE_PNV_XIVE)
> +#define PNV_XIVE_CLASS(klass)                                   \
> +    OBJECT_CLASS_CHECK(PnvXiveClass, (klass), TYPE_PNV_XIVE)
> +#define PNV_XIVE_GET_CLASS(obj)                                 \
> +    OBJECT_GET_CLASS(PnvXiveClass, (obj), TYPE_PNV_XIVE)
>  
>  #define XIVE_BLOCK_MAX      16
>  
> @@ -87,6 +91,12 @@ typedef struct PnvXive {
>      uint64_t      edt[XIVE_TABLE_EDT_MAX];
>  } PnvXive;
>  
> +typedef struct PnvXiveClass {
> +    XiveRouterClass parent_class;
> +
> +    DeviceRealize parent_realize;
> +} PnvXiveClass;
> +
>  void pnv_xive_pic_print_info(PnvXive *xive, Monitor *mon);
>  
>  #endif /* PPC_PNV_XIVE_H */
> diff --git a/hw/intc/pnv_xive.c b/hw/intc/pnv_xive.c
> index 66970a60733b..1962f884d6de 100644
> --- a/hw/intc/pnv_xive.c
> +++ b/hw/intc/pnv_xive.c
> @@ -1816,10 +1816,17 @@ static void pnv_xive_init(Object *obj)
>  static void pnv_xive_realize(DeviceState *dev, Error **errp)
>  {
>      PnvXive *xive = PNV_XIVE(dev);
> +    PnvXiveClass *pxc = PNV_XIVE_GET_CLASS(dev);
>      XiveSource *xsrc = &xive->ipi_source;
>      XiveENDSource *end_xsrc = &xive->end_source;
>      Error *local_err = NULL;
>  
> +    pxc->parent_realize(dev, &local_err);
> +    if (local_err) {
> +        error_propagate(errp, local_err);
> +        return;
> +    }
> +
>      assert(xive->chip);
>      assert(xive->system_memory);
>  
> @@ -1950,10 +1957,12 @@ static void pnv_xive_class_init(ObjectClass *klass, 
> void *data)
>      XiveRouterClass *xrc = XIVE_ROUTER_CLASS(klass);
>      XiveNotifierClass *xnc = XIVE_NOTIFIER_CLASS(klass);
>      XivePresenterClass *xpc = XIVE_PRESENTER_CLASS(klass);
> +    PnvXiveClass *pxc = PNV_XIVE_CLASS(klass);
>  
>      xdc->dt_xscom = pnv_xive_dt_xscom;
>  
>      dc->desc = "PowerNV XIVE Interrupt Controller";
> +    device_class_set_parent_realize(dc, pnv_xive_realize, 
> &pxc->parent_realize);
>      dc->realize = pnv_xive_realize;
>      dc->props = pnv_xive_properties;
>  
> @@ -1974,6 +1983,7 @@ static const TypeInfo pnv_xive_info = {
>      .instance_init = pnv_xive_init,
>      .instance_size = sizeof(PnvXive),
>      .class_init    = pnv_xive_class_init,
> +    .class_size    = sizeof(PnvXiveClass),
>      .interfaces    = (InterfaceInfo[]) {
>          { TYPE_PNV_XSCOM_INTERFACE },
>          { }

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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