From 9b9ff2e16a4609a7ab39b12e67fc56b51c8cd1f4 Mon Sep 17 00:00:00 2001 From: Grant Grundler <grundler@parisc-linux.org> Date: Tue, 10 Jan 2006 20:48:00 -0500 Subject: [PATCH] [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: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org> --- include/asm-parisc/pci.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h index fa39d07d49e9..f277254159b7 100644 --- a/include/asm-parisc/pci.h +++ b/include/asm-parisc/pci.h @@ -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 */ -- GitLab