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[pci] Generalise pci_num_bus() to pci_discover()

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Allow pci_find_next() to discover devices beyond the first PCI
segment, by generalising pci_num_bus() (which implicitly assumes that
there is only a single PCI segment) with pci_discover() (which has the
ability to return an arbitrary contiguous chunk of PCI bus:dev.fn
address space).

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2022-09-15 16:47:04 +01:00
parent 56b30364c5
commit ff228f745c
10 changed files with 78 additions and 43 deletions
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2
src/interface/efi/efi_pci.c
View File

@@ -362,7 +362,7 @@ void * efipci_ioremap ( struct pci_device *pci, unsigned long bus_addr,
return ioremap ( bus_addr, len );
}
PROVIDE_PCIAPI_INLINE ( efi, pci_num_bus );
PROVIDE_PCIAPI_INLINE ( efi, pci_discover );
PROVIDE_PCIAPI_INLINE ( efi, pci_read_config_byte );
PROVIDE_PCIAPI_INLINE ( efi, pci_read_config_word );
PROVIDE_PCIAPI_INLINE ( efi, pci_read_config_dword );

2
src/interface/linux/linux_pci.c
View File

@@ -188,7 +188,7 @@ int linux_pci_write ( struct pci_device *pci, unsigned long where,
return rc;
}
PROVIDE_PCIAPI_INLINE ( linux, pci_num_bus );
PROVIDE_PCIAPI_INLINE ( linux, pci_discover );
PROVIDE_PCIAPI_INLINE ( linux, pci_read_config_byte );
PROVIDE_PCIAPI_INLINE ( linux, pci_read_config_word );
PROVIDE_PCIAPI_INLINE ( linux, pci_read_config_dword );