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| author | Frank Li <Frank.Li@nxp.com> | 2025-07-10 22:13:51 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2025-07-25 00:51:41 +0300 |
| commit | 4ff4252a2355f585c5cad8dc959ff1097300aa47 (patch) | |
| tree | 2a0e0f0ed057d921e7ff0968941e912d2ce53699 /include/linux | |
| parent | c822392280aa9bc57ad3b5079020388950cce9c8 (diff) | |
| download | linux-4ff4252a2355f585c5cad8dc959ff1097300aa47.tar.xz | |
PCI: endpoint: Add pci_epf_align_inbound_addr() helper for inbound address alignment
Add pci_epf_align_inbound_addr() to align the inbound addresses according
to PCI BAR alignment requirements. The aligned base address and offset are
returned via 'base' and 'off' parameters.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
[mani: reworded kernel-doc and commit message]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Niklas Cassel <cassel@kernel.org>
Link: https://patch.msgid.link/20250710-ep-msi-v21-5-57683fc7fb25@nxp.com
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci-epf.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index 52e07602f08e..2e85504ba2ba 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -241,6 +241,9 @@ void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar, enum pci_epc_interface_type type); void pci_epf_free_space(struct pci_epf *epf, void *addr, enum pci_barno bar, enum pci_epc_interface_type type); + +int pci_epf_align_inbound_addr(struct pci_epf *epf, enum pci_barno bar, + u64 addr, dma_addr_t *base, size_t *off); int pci_epf_bind(struct pci_epf *epf); void pci_epf_unbind(struct pci_epf *epf); int pci_epf_add_vepf(struct pci_epf *epf_pf, struct pci_epf *epf_vf); |