> The important thing is that pci_alloc_consistent and the other PCI DMA
> functions work as advertised on IA64. If you pass NULL to
> pci_alloc_consistent, IA64 should give you an ISA DMA-able
> address. If
> you don't, you get a 32-bit PCI DMA address. Use of GFP_DMA is a
> arch-specific detail, so don't let me confuse you there.
Until recently, on IA-64, pci_alloc_consistent() given a NULL pci_dev would
fault. It's been fixed in at least the most recent IA-64 patch.
pci_map_single() and pci_map_sg() still have the same problem, as they
dereference pci_dev w/o checking for NULL first.
-- Matt Domsch Sr. Software Engineer Dell Linux Solutions www.dell.com/linux #2 Linux Server provider with 17% in the US and 14% Worldwide (IDC)! #3 Unix provider with 18% in the US (Dataquest)!- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Jul 07 2001 - 21:00:18 EST