From: "tiejun.chen" <tiejun.chen@windriver.com>
To: hellohello <hellohello008@163.com>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: How to make a memory region to be cache disabled ? Cpu is mpc82XX or mpc83XX.
Date: Wed, 14 Mar 2012 13:09:54 +0800 [thread overview]
Message-ID: <4F602822.1090503@windriver.com> (raw)
In-Reply-To: <EF9AEBBC0B9942B48CE5D29FF5CE814B@sfdomain.com>
hellohello wrote:
> How to make a memory region to be cache disabled in linux?
> I'm porting mpc83XX from vxworks to linux. Now meet a question: Cpu use a memory region (GPCM mode of bus) to access peripherals, we need this memory to be cache disabled.
> Linux Kernel is 2.6.25.
> Thanks very much for any hint!
ioremap() is fine enough since it always set I|G as TLB entry attribute.
Tiejun
prev parent reply other threads:[~2012-03-14 5:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-14 2:37 How to make a memory region to be cache disabled ? Cpu is mpc82XX or mpc83XX hellohello
2012-03-14 4:34 ` Vineeth
2012-03-14 5:09 ` tiejun.chen [this message]
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