All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Rupesh S" <rupeshs@myw.ltindia.com>
To: <linuxppc-embedded@lists.linuxppc.org>
Subject: Why not kmalloc() ??
Date: Fri, 16 Jul 2004 14:55:34 +0530	[thread overview]
Message-ID: <s0f7edc2.025@EMAIL> (raw)


Hi,

I just figured out that I need to use m8xx_cpm_hostalloc() to allocate memory for "buffer" that needs to be attached to the "Buffer Descriptor" of an  MPC8xx CPM peripheral (like IIC, SPI, SCC etc). Instead, if I try to use kmalloc() or a static memory allocation, my driver isn't working.

1) Can somebody throw some light on what exactly is the difference between m8xx_cpm_hostalloc() and kmalloc().
2) Why is the difference important in ppc linux ?




Thanks
--
Rupesh S


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

             reply	other threads:[~2004-07-16  9:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-16  9:25 Rupesh S [this message]
2004-07-16 10:25 ` kernel 2.4.26 doesn't seem to work with a MPC859T Pedro Aguilar
2004-07-16 11:34 ` Why not kmalloc() ?? Magnus Damm
2004-07-16 12:06   ` sanjeev ramachandran
2004-07-16 13:32     ` Dan Malek
2004-07-16 14:06       ` Mark Chambers
2004-07-16 15:42         ` Rune Torgersen
2004-07-16 19:03           ` Dan Malek
2004-07-16 19:02         ` Dan Malek
2004-07-16 13:29   ` Dan Malek
2004-07-16 11:46 ` Dan Malek
  -- strict thread matches above, loose matches on Subject: below --
2004-07-17  4:51 Rupesh S

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=s0f7edc2.025@EMAIL \
    --to=rupeshs@myw.ltindia.com \
    --cc=linuxppc-embedded@lists.linuxppc.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.