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Commit 9b9ff2e1 authored by Grant Grundler's avatar Grant Grundler Committed by Kyle McMartin
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[PARISC] Make PCI_HOST_ADDR and PCI_BUS_ADDR symmetrical 



Change to asm-parisc/pci.h makes the define of PCI_HOST_ADDR symmetrical
with PCI_BUS_ADDR. Also add a comment about PA_VIEW and LMMIO/ELMMIO/GMMIO.

Signed-off-by: default avatarGrant Grundler <grundler@parisc-linux.org>
Signed-off-by: default avatarKyle McMartin <kyle@parisc-linux.org>
parent 7c0b67ef

include/asm-parisc/pci.h

+7 −1
Original line number Diff line number Diff line
@@ -84,11 +84,17 @@ static __inline__ int pci_is_lmmio(struct pci_hba_data *hba, unsigned long a) 
/*

** Convert between PCI (IO_VIEW) addresses and processor (PA_VIEW) addresses.

** See pcibios.c for more conversions used by Generic PCI code.

**

** Platform characteristics/firmware guarantee that

**	(1) PA_VIEW - IO_VIEW = lmmio_offset for both LMMIO and ELMMIO

**	(2) PA_VIEW == IO_VIEW for GMMIO

*/

#define PCI_BUS_ADDR(hba,a)	(PCI_IS_LMMIO(hba,a)	\

		?  ((a) - hba->lmmio_space_offset)	/* mangle LMMIO */ \

		: (a))					/* GMMIO */

#define PCI_HOST_ADDR(hba,a)	((a) + hba->lmmio_space_offset)

#define PCI_HOST_ADDR(hba,a)	(((a) & PCI_F_EXTEND) == 0 \

		? (a) + hba->lmmio_space_offset \

		: (a))



#else	/* !CONFIG_64BIT */