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[pci] Define pci_ioremap() for mapping PCI bus addresses

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Define pci_ioremap() as a wrapper around ioremap() that could allow
for a non-zero address translation offset.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2020-09-24 16:58:14 +01:00
parent ccfffc797a
commit 371af4eef2
8 changed files with 66 additions and 0 deletions
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1
src/arch/x86/core/pcidirect.c
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@@ -52,3 +52,4 @@ PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_dword );
PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_byte );
PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_word );
PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_dword );
PROVIDE_PCIAPI_INLINE ( direct, pci_ioremap );

13
src/arch/x86/include/ipxe/pcibios.h
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@@ -132,4 +132,17 @@ PCIAPI_INLINE ( pcbios, pci_write_config_dword ) ( struct pci_device *pci,
return pcibios_write ( pci, PCIBIOS_WRITE_CONFIG_DWORD | where, value);
}
/**
* Map PCI bus address as an I/O address
*
* @v bus_addr PCI bus address
* @v len Length of region
* @ret io_addr I/O address, or NULL on error
*/
static inline __always_inline void *
PCIAPI_INLINE ( pcbios, pci_ioremap ) ( struct pci_device *pci __unused,
unsigned long bus_addr, size_t len ) {
return ioremap ( bus_addr, len );
}
#endif /* _IPXE_PCIBIOS_H */

13
src/arch/x86/include/ipxe/pcidirect.h
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@@ -138,4 +138,17 @@ PCIAPI_INLINE ( direct, pci_write_config_dword ) ( struct pci_device *pci,
return 0;
}
/**
* Map PCI bus address as an I/O address
*
* @v bus_addr PCI bus address
* @v len Length of region
* @ret io_addr I/O address, or NULL on error
*/
static inline __always_inline void *
PCIAPI_INLINE ( direct, pci_ioremap ) ( struct pci_device *pci __unused,
unsigned long bus_addr, size_t len ) {
return ioremap ( bus_addr, len );
}
#endif /* _PCIDIRECT_H */

1
src/arch/x86/interface/pcbios/pcibios.c
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@@ -121,3 +121,4 @@ PROVIDE_PCIAPI_INLINE ( pcbios, pci_read_config_dword );
PROVIDE_PCIAPI_INLINE ( pcbios, pci_write_config_byte );
PROVIDE_PCIAPI_INLINE ( pcbios, pci_write_config_word );
PROVIDE_PCIAPI_INLINE ( pcbios, pci_write_config_dword );
PROVIDE_PCIAPI_INLINE ( pcbios, pci_ioremap );