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Commit 228c2f41 authored by Andrew Donnellan's avatar Andrew Donnellan Committed by Michael Ellerman
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powerpc/powernv: Set correct configuration space size for opencapi devices 



The configuration space for opencapi devices doesn't have a PCI
Express capability, therefore confusing linux in thinking it's of an
old PCI type with a 256-byte configuration space size, instead of the
desired 4k. So add a PCI fixup to declare the correct size.

Signed-off-by: default avatarAndrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: default avatarFrederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 7f2c39e9

arch/powerpc/platforms/powernv/pci-ioda.c

+13 −0
Original line number Diff line number Diff line
@@ -4091,6 +4091,19 @@ void __init pnv_pci_init_npu2_opencapi_phb(struct device_node *np) 
	pnv_pci_init_ioda_phb(np, 0, PNV_PHB_NPU_OCAPI);

}



static void pnv_npu2_opencapi_cfg_size_fixup(struct pci_dev *dev)

{

	struct pci_controller *hose = pci_bus_to_host(dev->bus);

	struct pnv_phb *phb = hose->private_data;



	if (!machine_is(powernv))

		return;



	if (phb->type == PNV_PHB_NPU_OCAPI)

		dev->cfg_size = PCI_CFG_SPACE_EXP_SIZE;

}

DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, pnv_npu2_opencapi_cfg_size_fixup);



void __init pnv_pci_init_ioda_hub(struct device_node *np)

{

	struct device_node *phbn;