redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

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>
hifive-unleashed-5.1
Andrew Donnellan 2018-01-23 12:31:37 +01:00 committed by Michael Ellerman
parent 7f2c39e91f
commit 228c2f4103
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arch/powerpc/platforms/powernv/pci-ioda.c
View File

@ -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;