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| author | Gavin Shan <shangw@linux.vnet.ibm.com> | 2013-06-27 13:46:48 +0800 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-07-01 11:10:33 +1000 |
| commit | 9bf41be6737327b7c06cd3f210a0cb599f4aa790 (patch) | |
| tree | 5b1975aad28df78f6d0dbf58e37f67cc94e808fa /arch/powerpc/platforms/powernv/pci.h | |
| parent | eeb6361fdd3df59c1741522b3d8102f0f5efdd88 (diff) | |
| download | talos-op-linux-9bf41be6737327b7c06cd3f210a0cb599f4aa790.tar.gz talos-op-linux-9bf41be6737327b7c06cd3f210a0cb599f4aa790.zip | |
powerpc/powernv: Use dev-node in PCI config accessors
Currently, we're using the combo (PCI bus + devfn) in the PCI
config accessors and PCI config accessors in EEH depends on them.
However, it's not safe to refer the PCI bus which might have been
removed during hotplug. So we're using device node in the PCI
config accessors and the corresponding backends just reuse them.
The patch also fix one potential risk: We possiblly have frozen
PE during the early PCI probe time, but we haven't setup the PE
mapping yet. So the errors should be counted to PE#0.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci.h')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 40bdf0219b96..d633c64e05a1 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -182,6 +182,10 @@ extern struct pci_ops pnv_pci_ops; extern struct pnv_eeh_ops ioda_eeh_ops; #endif +int pnv_pci_cfg_read(struct device_node *dn, + int where, int size, u32 *val); +int pnv_pci_cfg_write(struct device_node *dn, + int where, int size, u32 val); extern void pnv_pci_setup_iommu_table(struct iommu_table *tbl, void *tce_mem, u64 tce_size, u64 dma_offset); |
