Messages in this thread | | | Date | Tue, 22 May 2001 15:11:43 +0200 | From | Pavel Machek <> | Subject | Re: alpha iommu fixes |
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Hi!
> > > [..] Even sparc64's fancy > > > iommu-based pci_map_single() always succeeds. > > > > Whatever sparc64 does to hide the driver bugs you can break it if you > > pci_map 4G+1 bytes of phyical memory. > > Which is an utterly stupid thing to do. > > Please construct a plausable situation where this would occur legally > and not be a driver bug, given the maximum number of PCI busses and > slots found on sparc64 and the maximum _concurrent_ usage of PCI dma > space for any given driver (which isn't doing something stupid).
What stops you from plugging PCI-to-PCI bridges in order to create some large number of slots, like 128? Pavel -- I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care." Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org - 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/
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