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| author |   Oliver O'Halloran <oohall@gmail.com> | 2020-04-17 17:35:05 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-05-28 23:24:38 +1000 |
| commit | a8d7d5fc2e1672924a391aa37ef8c02d1ec84a4e (patch) | |
| tree | a25a4773ee37656e4eef8c66d1b0ceec607c81d7 /arch/powerpc/platforms/powernv/pci.h | |
| parent | powerpc/powernv/pci: Add an explaination for PNV_IODA_PE_BUS_ALL (diff) | |
| download | linux-dev-a8d7d5fc2e1672924a391aa37ef8c02d1ec84a4e.tar.xz linux-dev-a8d7d5fc2e1672924a391aa37ef8c02d1ec84a4e.zip | |
powerpc/powernv/pci: Add helper to find ioda_pe from BDFN
For each PHB we maintain a reverse-map that can be used to find the
PE that a BDFN is currently mapped to. Add a helper for doing this
lookup so we can check if a PE has been configured without looking
at pdn->pe_number.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200417073508.30356-2-oohall@gmail.com
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index fc05f9b5caed..83d40a06e938 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -208,6 +208,7 @@ extern int pnv_eeh_phb_reset(struct pci_controller *hose, int option); extern int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type); extern void pnv_teardown_msi_irqs(struct pci_dev *pdev); +extern struct pnv_ioda_pe *pnv_pci_bdfn_to_pe(struct pnv_phb *phb, u16 bdfn); extern struct pnv_ioda_pe *pnv_ioda_get_pe(struct pci_dev *dev); extern void pnv_set_msi_irq_chip(struct pnv_phb *phb, unsigned int virq); extern unsigned long pnv_pci_ioda2_get_table_size(__u32 page_shift, |