Re: [PATCH 1/2] ide: Add tx4939ide driver

[Atsushi Nemoto <anemo@mba.ocn.ne.jp>]

On Sun, 28 Sep 2008 07:09:35 +0900, Tejun Heo <htejun@gmail.com> wrote:
> >>>> Do you mean __ide_flush_dcache_range?  This is needed to avoid cache
> >>>> inconsistency on PIO drive.  PIO transfer only writes to cache but
> >>>> upper layers expects the data is in main memory.
> >>>     Hum, then I wonder why it's MIPS specific...
> >> SPARC also have it.  And there were some discussions for ARM IIRC.
> > 
> > I was under the impression that it has been addressed by Tejun at
> > the higher-layer level (for both ide/libata) long time ago and that
> > MIPS/SPARC code are just a left-overs which could be removed now?
> 
> cc'ing Jens and James.  IIRC, I posted several patches but they never
> went in.  I don't remember what the objections were or whether any
> alternative fix went in.

I suppose you mean thread http://lkml.org/lkml/2006/1/13/156.

IIUC flushing in ide string ops is still needed for MIPS.

---
Atsushi Nemoto