From: Roland Dreier <rdreier@cisco.com>
To: Rolf Eike Beer <eike-kernel@sf-tec.de>
Cc: "yogeshwar sonawane" <yogyas@gmail.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Accessing 64-bit BARs
Date: Thu, 04 Oct 2007 08:26:12 -0700 [thread overview]
Message-ID: <adasl4qdhpn.fsf@cisco.com> (raw)
In-Reply-To: <200710041440.15464.eike-kernel@sf-tec.de> (Rolf Eike Beer's message of "Thu, 4 Oct 2007 14:40:10 +0200")
> You should use pci_iomap() to get an access pointer to the BAR. After this you
> can access the memory with ioread*() and iowrite*(). See "man pci_iomap(9)"
> if you build kernel manpages.
That works fine, but ioremap() and readl()/writel() is also perfectly
fine for regions that you know are always MMIO.
- R.
next prev parent reply other threads:[~2007-10-04 15:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-04 8:53 Accessing 64-bit BARs yogeshwar sonawane
2007-10-04 12:40 ` Rolf Eike Beer
2007-10-04 15:26 ` Roland Dreier [this message]
2007-10-05 3:57 ` yogeshwar sonawane
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=adasl4qdhpn.fsf@cisco.com \
--to=rdreier@cisco.com \
--cc=eike-kernel@sf-tec.de \
--cc=linux-kernel@vger.kernel.org \
--cc=yogyas@gmail.com \
/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.