From: tixy@linaro.org (Jon Medhurst (Tixy))
To: linux-arm-kernel@lists.infradead.org
Subject: Bug(?) in patch "arm64: Implement coherent DMA API based on swiotlb" (was Re: [GIT PULL] arm64 patches for 3.15)
Date: Wed, 02 Apr 2014 11:54:24 +0100 [thread overview]
Message-ID: <1396436064.3554.53.camel@linaro1.home> (raw)
In-Reply-To: <20140402092032.GB31892@arm.com>
On Wed, 2014-04-02 at 10:20 +0100, Catalin Marinas wrote:
> On Wed, Apr 02, 2014 at 09:52:02AM +0100, Jon Medhurst (Tixy) wrote:
> > On Tue, 2014-04-01 at 18:29 +0100, Catalin Marinas wrote:
> > > +1: tst x0, x3 // start cache line aligned?
> > > + bic x0, x0, x3
> > > + b.eq 2f
> > > + dc civac, x0 // clean & invalidate D / U line
> > > + b 3f
> > > +2: dc ivac, x0 // invalidate D / U line
> > > +3: add x0, x0, x2
> > > cmp x0, x1
> > > b.lo 1b
> >
> > The above obviously also needs changing to branch to 3b
>
> Good point.
Actually, it should be 2b :-)
--
Tixy
prev parent reply other threads:[~2014-04-02 10:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-31 17:52 [GIT PULL] arm64 patches for 3.15 Catalin Marinas
2014-04-01 16:10 ` Bug(?) in patch "arm64: Implement coherent DMA API based on swiotlb" (was Re: [GIT PULL] arm64 patches for 3.15) Jon Medhurst (Tixy)
2014-04-01 17:29 ` Catalin Marinas
2014-04-02 8:52 ` Jon Medhurst (Tixy)
2014-04-02 9:20 ` Catalin Marinas
2014-04-02 9:40 ` Russell King - ARM Linux
2014-04-02 11:13 ` Catalin Marinas
2014-04-02 10:41 ` Bug(?) in patch "arm64: Implement coherent DMA API based on swiotlb" Jon Medhurst (Tixy)
2014-04-02 11:37 ` Catalin Marinas
2014-04-02 10:54 ` Jon Medhurst (Tixy) [this message]
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