Messages in this thread | | | Date | Thu, 23 Oct 2003 18:52:24 -0700 (PDT) | From | Jon Smirl <> | Subject | Re: [Dri-devel] Re: [Linux-fbdev-devel] DRM and pci_driver conversion |
| |
Video drivers only enable the ROM long enough to get some values out it and then disable it. You don't want to leave ROMs enabled because there is some hardware that uses the same address decoder for ROM and RAM and you can't use them both at the same time.
--- Jeff Garzik <jgarzik@pobox.com> wrote: > Linus Torvalds wrote: > > [ Jeff: is that PCI ROM enable _really_ that complicated? Ouch. Or is > > there some helper function I missed? ] > > > The mechanics aren't complicated, but I seem to recall there being a > Real Good Reason why you want to leave it disabled 99% of the time. No, > I don't recall that reason :( But my fuzzy memory seems to think that > "enable, grab a slice o 'rom, disable" was viable. > > Jeff > > >
===== Jon Smirl jonsmirl@yahoo.com
__________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com - 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/
| |