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| author | Andrew Donnellan <andrew.donnellan@au1.ibm.com> | 2018-01-23 14:31:37 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-24 03:42:56 +0300 |
| commit | 228c2f4103788ba2a8df636f383ec2df33b47b73 (patch) | |
| tree | 5916dc946302c635cc163849171398a150b1ebd2 /arch/powerpc/platforms | |
| parent | 7f2c39e91f61fcd2abed3b39c14e7037c060c6f1 (diff) | |
| download | linux-228c2f4103788ba2a8df636f383ec2df33b47b73.tar.xz | |
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: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index c1e235677c73..886014ed85fe 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -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; |