-Original Message-
From: uclinux-dist-devel-boun...@blackfin.uclinux.org
[mailto:uclinux-dist-devel-boun...@blackfin.uclinux.org] On
Behalf Of David Brownell
Sent: Wednesday, September 02, 2009 9:52 AM
To: Barry Song
Cc: dbrown...@users.sourceforge.net; d...@mail.ru;
David,
I am really surprised the kmalloc memory can keep DMA-safe. Check the
code, no matter spi_write_then_read and spi_init, they only get memory
by a simple
kmalloc(SPI_BUFSIZ, GFP_KERNEL);
I can't find map_single or dma coherent operations at all. So did I
lose something?
Thanks
Barry
On
-Original Message-
From: Barry Song [mailto:21cn...@gmail.com]
Sent: Wednesday, September 02, 2009 3:52 PM
To: David Brownell
Cc: Song, Barry; Mike Frysinger;
dbrown...@users.sourceforge.net; d...@mail.ru;
dmitry.torok...@gmail.com;
spi-devel-general@lists.sourceforge.net;
On Wednesday 02 September 2009, Barry Song wrote:
David,
I am really surprised the kmalloc memory can keep DMA-safe.
Then you need to internalize more of the docs on the DMA
calls ... :)
Notably see in Documentation/DMA-mapping.txt the section up top
where it describes what memory can be used
On Wed, Sep 2, 2009 at 05:50, Robin Getz wrote:
On Tue 1 Sep 2009 23:17, Song, Barry pondered:
No. I can't agree other coding style issues you said. I will keep my
original codes for these issues except adding a BUS_SPI.
style is different than performance
Did you think about Mike's
On Tue 1 Sep 2009 23:17, Song, Barry pondered:
No. I can't agree other coding style issues you said. I will keep my
original codes for these issues except adding a BUS_SPI.
style is different than performance
Did you think about Mike's comment - I think it was a performance issue he was
David Brownell wrote:
It's good policy to include a brief GPL statement at the top
of every source file too, including a Copyright (C) you.
I think good policy is probably understating things a bit. :)
b.g.
--
Bill Gatliff
b...@billgatliff.com
On Tuesday 01 September 2009, Andrew Morton wrote:
+#define
busy_wait(cond) \
+ ({ \
+ unsigned long end_jiffies = jiffies + STMP_SPI_TIMEOUT; \
+ bool
On Tuesday 01 September 2009, Andrew Morton wrote:
On Thu, 27 Aug 2009 20:21:11 -0700
David Brownell davi...@pacbell.net wrote:
From: Tero Kristo tero.kri...@nokia.com
Previous restore was lazy and only restored CHxCONF when it was needed by a
specific chip select. This could cause
On Wed, 2009-09-02 at 08:47 -0700, David Brownell wrote:
On Tuesday 01 September 2009, Andrew Morton wrote:
+#define busy_wait(cond)
\
+ ({ \
+ unsigned long
On Wed, 2 Sep 2009 08:47:18 -0700 David Brownell davi...@pacbell.net wrote:
On Tuesday 01 September 2009, Andrew Morton wrote:
+#define
busy_wait(cond)\
On Wed, 2 Sep 2009 08:53:16 -0700 David Brownell davi...@pacbell.net wrote:
On Tuesday 01 September 2009, Andrew Morton wrote:
On Thu, 27 Aug 2009 20:21:11 -0700
David Brownell davi...@pacbell.net wrote:
From: Tero Kristo tero.kri...@nokia.com
Previous restore was lazy and only
If he shall survive his eccentricities of diet that long. He was an
omnivorous buyer, picking up everything he could lay his h
inline: cheesed.jpg--
Let Crystal Reports handle the reporting - Free Crystal Reports 2008
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