Re: [PATCH 12/26] ppc/pnv: Add a OCC model for POWER10

[David Gibson]

On Mon, Aug 09, 2021 at 03:45:33PM +0200, Cédric Le Goater wrote:
> Our OCC model is very mininal and POWER10 can simply reuse the OCC
> model we introduced for POWER9.
> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>

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

> ---
>  include/hw/ppc/pnv.h       |  1 +
>  include/hw/ppc/pnv_occ.h   |  2 ++
>  include/hw/ppc/pnv_xscom.h |  3 +++
>  hw/ppc/pnv.c               | 10 ++++++++++
>  hw/ppc/pnv_occ.c           | 16 ++++++++++++++++
>  5 files changed, 32 insertions(+)
> 
> diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
> index b773b09f9f8e..a299fbc7f25c 100644
> --- a/include/hw/ppc/pnv.h
> +++ b/include/hw/ppc/pnv.h
> @@ -127,6 +127,7 @@ struct Pnv10Chip {
>      PnvXive2     xive;
>      Pnv9Psi      psi;
>      PnvLpcController lpc;
> +    PnvOCC       occ;
>  };
>  
>  #define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
> diff --git a/include/hw/ppc/pnv_occ.h b/include/hw/ppc/pnv_occ.h
> index b78185aecaf2..f982ba002481 100644
> --- a/include/hw/ppc/pnv_occ.h
> +++ b/include/hw/ppc/pnv_occ.h
> @@ -32,6 +32,8 @@ DECLARE_INSTANCE_CHECKER(PnvOCC, PNV8_OCC,
>  #define TYPE_PNV9_OCC TYPE_PNV_OCC "-POWER9"
>  DECLARE_INSTANCE_CHECKER(PnvOCC, PNV9_OCC,
>                           TYPE_PNV9_OCC)
> +#define TYPE_PNV10_OCC TYPE_PNV_OCC "-POWER10"
> +DECLARE_INSTANCE_CHECKER(PnvOCC, PNV10_OCC, TYPE_PNV10_OCC)
>  
>  #define PNV_OCC_SENSOR_DATA_BLOCK_OFFSET 0x00580000
>  #define PNV_OCC_SENSOR_DATA_BLOCK_SIZE   0x00025800
> diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
> index 188da874a4b0..151df15378d1 100644
> --- a/include/hw/ppc/pnv_xscom.h
> +++ b/include/hw/ppc/pnv_xscom.h
> @@ -131,6 +131,9 @@ struct PnvXScomInterfaceClass {
>  #define PNV10_XSCOM_PSIHB_BASE     0x3011D00
>  #define PNV10_XSCOM_PSIHB_SIZE     0x100
>  
> +#define PNV10_XSCOM_OCC_BASE       PNV9_XSCOM_OCC_BASE
> +#define PNV10_XSCOM_OCC_SIZE       PNV9_XSCOM_OCC_SIZE
> +
>  #define PNV10_XSCOM_XIVE2_BASE     0x2010800
>  #define PNV10_XSCOM_XIVE2_SIZE     0x400
>  
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index 28c928b3985a..f75d90e61fa8 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -1602,6 +1602,7 @@ static void pnv_chip_power10_instance_init(Object *obj)
>                                "xive-fabric");
>      object_initialize_child(obj, "psi", &chip10->psi, TYPE_PNV10_PSI);
>      object_initialize_child(obj, "lpc", &chip10->lpc, TYPE_PNV10_LPC);
> +    object_initialize_child(obj, "occ",  &chip10->occ, TYPE_PNV10_OCC);
>  }
>  
>  static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
> @@ -1667,6 +1668,15 @@ static void pnv_chip_power10_realize(DeviceState *dev, 
> Error **errp)
>      chip->fw_mr = &chip10->lpc.isa_fw;
>      chip->dt_isa_nodename = g_strdup_printf("/lpcm-opb@%" PRIx64 "/lpc@0",
>                                              (uint64_t) 
> PNV10_LPCM_BASE(chip));
> +
> +    /* Create the simplified OCC model */
> +    object_property_set_link(OBJECT(&chip10->occ), "psi", 
> OBJECT(&chip10->psi),
> +                             &error_abort);
> +    if (!qdev_realize(DEVICE(&chip10->occ), NULL, errp)) {
> +        return;
> +    }
> +    pnv_xscom_add_subregion(chip, PNV10_XSCOM_OCC_BASE,
> +                            &chip10->occ.xscom_regs);
>  }
>  
>  static uint32_t pnv_chip_power10_xscom_pcba(PnvChip *chip, uint64_t addr)
> diff --git a/hw/ppc/pnv_occ.c b/hw/ppc/pnv_occ.c
> index 5a716c256edc..4ed66f5e1fcc 100644
> --- a/hw/ppc/pnv_occ.c
> +++ b/hw/ppc/pnv_occ.c
> @@ -236,7 +236,9 @@ static const MemoryRegionOps pnv_occ_power9_xscom_ops = {
>  static void pnv_occ_power9_class_init(ObjectClass *klass, void *data)
>  {
>      PnvOCCClass *poc = PNV_OCC_CLASS(klass);
> +    DeviceClass *dc = DEVICE_CLASS(klass);
>  
> +    dc->desc = "PowerNV OCC Controller (POWER9)";
>      poc->xscom_size = PNV9_XSCOM_OCC_SIZE;
>      poc->xscom_ops = &pnv_occ_power9_xscom_ops;
>      poc->psi_irq = PSIHB9_IRQ_OCC;
> @@ -249,6 +251,19 @@ static const TypeInfo pnv_occ_power9_type_info = {
>      .class_init    = pnv_occ_power9_class_init,
>  };
>  
> +static void pnv_occ_power10_class_init(ObjectClass *klass, void *data)
> +{
> +    DeviceClass *dc = DEVICE_CLASS(klass);
> +
> +    dc->desc = "PowerNV OCC Controller (POWER10)";
> +}
> +
> +static const TypeInfo pnv_occ_power10_type_info = {
> +    .name          = TYPE_PNV10_OCC,
> +    .parent        = TYPE_PNV9_OCC,
> +    .class_init    = pnv_occ_power10_class_init,
> +};
> +
>  static void pnv_occ_realize(DeviceState *dev, Error **errp)
>  {
>      PnvOCC *occ = PNV_OCC(dev);
> @@ -297,6 +312,7 @@ static void pnv_occ_register_types(void)
>      type_register_static(&pnv_occ_type_info);
>      type_register_static(&pnv_occ_power8_type_info);
>      type_register_static(&pnv_occ_power9_type_info);
> +    type_register_static(&pnv_occ_power10_type_info);
>  }
>  
>  type_init(pnv_occ_register_types);

-- 
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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