Re: [PATCH for-7.2 v3 09/11] ppc/pnv: change pnv_phb4_get_pec() to also retrieve chip10->pecs

[Cédric Le Goater]

On 8/10/22 12:05, Daniel Henrique Barboza wrote:
> The function assumes that we're always dealing with a PNV9_CHIP()
> object. This is not the case when the pnv-phb device belongs to a
> powernv10 machine.
>
> Change pnv_phb4_get_pec() to be able to work with PNV10_CHIP() if
> necessary.
>
> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
> ---
>   hw/pci-host/pnv_phb.c | 17 +++++++++++++++--
>   1 file changed, 15 insertions(+), 2 deletions(-)
>
> diff --git a/hw/pci-host/pnv_phb.c b/hw/pci-host/pnv_phb.c
> index a142b8ff8d..feaef8137f 100644
> --- a/hw/pci-host/pnv_phb.c
> +++ b/hw/pci-host/pnv_phb.c
> @@ -53,17 +53,30 @@ static void pnv_parent_bus_fixup(DeviceState *parent, 
> DeviceState *child)
>   static PnvPhb4PecState *pnv_phb4_get_pec(PnvChip *chip, PnvPHB4 *phb,
>                                            Error **errp)
>   {
> -    Pnv9Chip *chip9 = PNV9_CHIP(chip);
> +    PnvPHB *phb_base = phb->phb_base;
> +    PnvPhb4PecState *pecs = NULL;
>       int chip_id = phb->chip_id;
>       int index = phb->phb_id;
>       int i, j;
>   
> +    if (phb_base->version == 4) {
> +        Pnv9Chip *chip9 = PNV9_CHIP(chip);
> +
> +        pecs = chip9->pecs;
> +    } else if (phb_base->version == 5) {
> +        Pnv10Chip *chip10 = PNV10_CHIP(chip);
> +
> +        pecs = chip10->pecs;
> +    } else {

May be :

     g_assert_not_reached();

> +        return NULL;
> +    }
> +
>       for (i = 0; i < chip->num_pecs; i++) {
>           /*
>            * For each PEC, check the amount of phbs it supports
>            * and see if the given phb4 index matches an index.
>            */
> -        PnvPhb4PecState *pec = &chip9->pecs[i];
> +        PnvPhb4PecState *pec = &pecs[i];
>   
>           for (j = 0; j < pec->num_phbs; j++) {
>               if (index == pnv_phb4_pec_get_phb_id(pec, j)) {