Messages in this thread | | | Date | Mon, 17 Dec 2007 01:28:27 +0100 | From | Pavel Machek <> | Subject | Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops |
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On Mon 2007-12-17 00:03:01, Alan Cox wrote: > On Sun, 16 Dec 2007 22:26:33 +0100 > Pavel Machek <pavel@ucw.cz> wrote: > > > On Fri 2007-12-14 15:33:28, Ingo Molnar wrote: > > > > > > * Alan Cox <alan@lxorguk.ukuu.org.uk> wrote: > > > > > > > There is another reason we can't just do a dumb changeover - two > > > > actually > > > > > > > > #1: Some drivers are using inb_p/outb_p in PCI cases which are going > > > > #to cause PCI posting changes. Most are probably just wrong in the > > > > #first place but they need hand checking > > > > > > hm, any intelligent way to force PCI posting? I guess not. > > > > > > here's a list of candidate drivers (match the out*_p() pattern and do > > > pci) > > > > > > ./char/epca.c > > > ./char/sonypi.c > > > ./scsi/megaraid.c > > > ./ide/pci/serverworks.c > > > ./ide/pci/cmd640.c > > > ./input/mouse/pc110pad.c > > You are missing some watchdogs at least ?
I snipped them, I only wanted to comment that pc110pad.c looks like legitimate use of outb_p(). Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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