Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64with MCP51 laptops
From: Alan Cox
Date: Sun Dec 16 2007 - 19:11:25 EST
On Sun, 16 Dec 2007 22:26:33 +0100
Pavel Machek <pavel@xxxxxx> wrote:
> On Fri 2007-12-14 15:33:28, Ingo Molnar wrote:
> >
> > * Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> 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 ?
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