On Thu, May 01 2008 at 18:22 +0300, James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote: > On Thu, 2008-05-01 at 17:56 +0300, Boaz Harrosh wrote: >> The call to pci_map_page() on an ISA case will it not bounce the >> buffer? > > Only if the system isn't a PCI_DMA_BUS_IS_PHYS one. > > That means basically either has an iommu/gart or has some silly swiotlb > to emulate one. > > That means for standard x86 isa systems the answer is no: the buffer has > to be allocated within the isa region because pci_map is simply a > virt_to_phys. > > James > OK Thanks, so the second patch then. That will solve it. Boaz -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
