Messages in this thread | | | Date | Wed, 20 Aug 2003 12:47:14 +0200 | From | Mikael Pettersson <> | Subject | Re: [PATCH][2.6][2/5]Support for HPET based timer |
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Andi Kleen writes: > Vojtech Pavlik <vojtech@suse.cz> writes: > > > On Tue, Aug 19, 2003 at 05:18:50PM -0700, Pallipadi, Venkatesh wrote: > > > > > Fixmap is for HPET memory map address access. As the timer > > > initialization happen > > > early in the boot sequence (before vm initialization), we need to have > > > fixmap() > > > and fix_to_virt() to access HPET memory map address. > > > > Ahh, yes, you're right. You can't use ioremap at that time. Actually I > > did the same on x86_64 not only because of vsyscalls. > > iirc i386 has an ioremap_early or somesuch.
bt_ioremap(). I wrote it to support early DMI scan so DMI data could be used to blacklist BIOSen that break local APICs. This was done pretty much just to handle Dell laptops. - 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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