Messages in this thread | | | Date | Fri, 6 Jul 2007 05:45:06 -0700 | From | "Aaron Durbin" <> | Subject | Re: [PATCH] i386/x86_64: Insert HPET firmware resource after PCI enumeration has completed |
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On 7/6/07, Andi Kleen <ak@suse.de> wrote: > On Friday 06 July 2007 00:27:24 Aaron Durbin wrote: > > > > Insert HPET resources after pci probing has been completed in order to avoid > > resource conflicts with PCI resource reservation. With this change the > > HPET firmware resources will be identified, but it should also not cause > > issues when the HPET address falls on a BAR in a PCI device, and the PCI > > enumeration cannot reserve the resources. > > But what advantage does it have when it's already reserved by PCI? > > That's only a cosmetic change, isn't it? A lot of code for cosmetics. >
To my knowledge, not every machine has the HPET live on a BAR in PCI space. It is cosmetic, but it shows what devices are using what memory address space in /proc/iomem so one doesn't need to dig through dmesg to piece things together.
I am going to work w/ Matthias to see if we can get a patch working with his system. I think that it is beneficial to easily view where resources are being used, but I do understand the prudence.
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