[Very RFC 44/46] powerpc/pci: Don't set pdn->pe_number when applying the weird P8 NVLink PE hack

[Alexey Kardashevskiy]

On 20/11/2019 12:28, Oliver O'Halloran wrote:
> P8 needs to shove four GPUs into three PEs for $reasons. Remove the
> pdn->pe_assignment done there since we just use the pe_rmap[] now.


Reviewed-by: Alexey Kardashevskiy <aik at ozlabs.ru>




> 
> Signed-off-by: Oliver O'Halloran <oohall at gmail.com>
> ---
>  arch/powerpc/platforms/powernv/pci-ioda.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
> index 2a9201306543..eceff27357e5 100644
> --- a/arch/powerpc/platforms/powernv/pci-ioda.c
> +++ b/arch/powerpc/platforms/powernv/pci-ioda.c
> @@ -1183,7 +1183,6 @@ static struct pnv_ioda_pe *pnv_ioda_setup_npu_PE(struct pci_dev *npu_pdev)
>  	long rid;
>  	struct pnv_ioda_pe *pe;
>  	struct pci_dev *gpu_pdev;
> -	struct pci_dn *npu_pdn;
>  	struct pnv_phb *phb = pci_bus_to_pnvhb(npu_pdev->bus);
>  
>  	/*
> @@ -1210,9 +1209,8 @@ static struct pnv_ioda_pe *pnv_ioda_setup_npu_PE(struct pci_dev *npu_pdev)
>  			dev_info(&npu_pdev->dev,
>  				"Associating to existing PE %x\n", pe_num);
>  			pci_dev_get(npu_pdev);
> -			npu_pdn = pci_get_pdn(npu_pdev);
> -			rid = npu_pdev->bus->number << 8 | npu_pdn->devfn;
> -			npu_pdn->pe_number = pe_num;
> +
> +			rid = npu_pdev->bus->number << 8 | npu_pdev->devfn;
>  			phb->ioda.pe_rmap[rid] = pe->pe_number;
>  
>  			/* Map the PE to this link */
> 

-- 
Alexey