From: Marek Vasut <marex@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 7/9] CACHE: net: Test if start address is aligned
Date: Tue, 26 Jun 2012 01:16:00 +0200 [thread overview]
Message-ID: <201206260116.01019.marex@denx.de> (raw)
In-Reply-To: <CANr=Z=YfANtMi4ErB5oP=BNBdqhnOCQqM3exe-L9Bh970bRVSQ@mail.gmail.com>
Dear Joe Hershberger,
> Hi Marek,
>
> On Sun, Jun 24, 2012 at 7:17 PM, Marek Vasut <marex@denx.de> wrote:
> > This prevents the scenario where data cache is on and the
> > device uses DMA to deploy data. In that case, it might not
> > be possible to flush/invalidate data to RAM properly. The
> > other option is to use bounce buffer, but that involves a
> > lot of copying and therefore degrades performance rapidly.
> > Therefore disallow this possibility of unaligned load address
> > altogether if data cache is on.
> >
> > Signed-off-by: Marek Vasut <marex@denx.de>
> > Cc: Joe Hershberger <joe.hershberger@gmail.com>
> > ---
>
> Acked-by: Joe Hershberger <joe.hershberger@gmail.com>
NAK, actually ... let's wait until the discussion is settled ;-)
Best regards,
Marek Vasut
next prev parent reply other threads:[~2012-06-25 23:16 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-25 0:17 [U-Boot] [PATCH 0/9] CACHE: Finishing touches Marek Vasut
2012-06-25 0:17 ` [U-Boot] [PATCH 1/9] COMMON: Add __stringify() function Marek Vasut
2012-06-25 0:17 ` [U-Boot] [PATCH 2/9] CACHE: Add cache_aligned() macro Marek Vasut
2012-06-25 21:12 ` Scott Wood
2012-06-25 23:30 ` Marek Vasut
2012-07-07 3:00 ` Aneesh V
2012-06-25 0:17 ` [U-Boot] [PATCH 3/9] CACHE: ext2load: Test if start address is aligned Marek Vasut
2012-06-25 0:17 ` [U-Boot] [PATCH 4/9] CACHE: fatload: " Marek Vasut
2012-06-25 0:17 ` [U-Boot] [PATCH 5/9] CACHE: mmc read/write: " Marek Vasut
2012-06-25 0:17 ` [U-Boot] [PATCH 6/9] CACHE: nand " Marek Vasut
2012-06-25 16:58 ` Scott Wood
2012-06-25 18:43 ` Tom Rini
2012-06-25 20:08 ` Scott Wood
2012-06-25 20:48 ` Tom Rini
2012-06-25 21:17 ` Scott Wood
2012-06-25 21:22 ` Tom Rini
2012-06-25 23:42 ` Marek Vasut
2012-06-26 0:37 ` Scott Wood
2012-06-26 1:16 ` Marek Vasut
2012-06-26 19:38 ` Scott Wood
2012-06-25 23:38 ` Marek Vasut
2012-06-25 23:37 ` Marek Vasut
2012-06-25 23:57 ` Scott Wood
2012-06-26 1:33 ` Marek Vasut
2012-06-26 19:25 ` Scott Wood
2012-06-26 20:39 ` Marek Vasut
2012-07-07 3:05 ` Aneesh V
2012-06-25 0:17 ` [U-Boot] [PATCH 7/9] CACHE: net: " Marek Vasut
2012-06-25 18:05 ` Joe Hershberger
2012-06-25 23:16 ` Marek Vasut [this message]
2012-06-25 0:17 ` [U-Boot] [PATCH 8/9] CACHE: net: asix: Fix asix driver to work with data cache on Marek Vasut
2012-06-25 18:07 ` Joe Hershberger
2012-06-25 23:16 ` Marek Vasut
2012-07-06 23:09 ` Marek Vasut
2012-07-06 23:16 ` Marek Vasut
2012-06-25 0:17 ` [U-Boot] [PATCH 9/9] M28EVK: Enable instruction and data cache Marek Vasut
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