On Thursday, October 9, 2008 7:40 pm FUJITA Tomonori wrote: > On Thu, 9 Oct 2008 15:18:37 -0600 > > Grant Grundler <grundler@xxxxxxxxxxxxxxxx> wrote: > > On Wed, Oct 08, 2008 at 04:02:23PM -0700, Yinghai Lu wrote: > > > so can find out what is DMA mask is used for pci devices in addition to > > > default setting. > > > > I like the idea. I don't like the additional boot time output. > > > > But I'm thinking this could be an option to lspci. > > lspci already knows about the /sys tree. Can PCI export the two masks > > (dma_mask and dma_consistent_mask) and something like "lspci -td" > > would dump those in a nice way? > > > > Anyone else agree? > > Agreed. > > dma_mask and dma_consistent_mask is not useful for the > majority. Printing them at boot time doesn't make sense for me. > > Adding under sysfs and using lspci sounds reasonable if we really need > these information. Another option would be to add a 'warn_dma_mask=0xxxxxxxxx' boot option that would trigger in the actual DMA mask setting routines. It would let you choose the mask you'd like to see warnings about. Yinghai? -- Jesse Barnes, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
