From: bryanr@bryanr.org
To: aryan aru <aryan222is@yahoo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: netlink vs ioctl
Date: Mon, 04 Mar 2002 22:24:43 -0800 [thread overview]
Message-ID: <3C8464AB.3020404@bryanr.org> (raw)
In-Reply-To: <20020305002843.30834.qmail@web21206.mail.yahoo.com>
aryan aru wrote:
> When used ioremap_nocache to map from user space to
> kernel space does it do cache flush ?
I'd guess ioremap_nocache marks the area as uncacheable,
so that all memory accesses bypass the cache and go
directly to physical memory. best way to find out
is to check the code ;)
-Bryan
next prev parent reply other threads:[~2002-03-05 6:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-05 0:28 netlink vs ioctl aryan aru
2002-03-05 6:24 ` bryanr [this message]
2002-06-19 9:39 ` PCI DMA : pci_map_single usage aryan aru
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