Messages in this thread | | | Date | Fri, 26 Sep 2008 04:14:11 -0700 | From | Arjan van de Ven <> | Subject | Re: [PATCH] x86, pci-hotplug, calgary / rio: fix EBDA ioremap() |
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>> >> mapping the EBDA is rather ... un-nice from that driver, so i guess >> you check does the right thing in flagging possible crap. > > it does: > > addr: 0x9f800 > end: 0xaf5e7 > p->start: 0x9f800 > p->end: 0x9ffff > > resources are laid out like this: > > 0009f800-0009ffff : reserved > 000a0000-000bffff : Video RAM area > > so the driver over-maps into the Video RAM...
... and makes that uncachable (while it probably was WC before)
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