From: Greg KH <gregkh@linuxfoundation.org>
To: Stanislav Meduna <stano@meduna.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
hjk@hansjkoch.de
Subject: Re: UIO and memory from dma_alloc_coherent - UIO_MEM_PHYS?
Date: Mon, 17 Feb 2014 11:18:34 -0800 [thread overview]
Message-ID: <20140217191834.GA15282@kroah.com> (raw)
In-Reply-To: <530255AA.2080905@meduna.org>
On Mon, Feb 17, 2014 at 07:32:10PM +0100, Stanislav Meduna wrote:
> On 17.02.2014 19:18, Greg KH wrote:
>
> > The uio_dmem_genirq.c driver showed up in 3.8, so it might be good for
> > you to update your kernel if you want to do DMA memory with a UIO
> > driver, as lots of other things in this area was fixed to accomplish
> > this.
>
> Ah, OK, I will look into this.
>
> I am stuck with 3.4 at the moment because of the real-time patches
> and some semantic changes there in the newer kernels necessitating
> much more tweak-and-test time than I currently have...
The real-time patches are available for 3.10, so that shouldn't be an
excuse anymore :)
prev parent reply other threads:[~2014-02-17 19:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-17 18:06 UIO and memory from dma_alloc_coherent - UIO_MEM_PHYS? Stanislav Meduna
2014-02-17 18:18 ` Greg KH
2014-02-17 18:32 ` Stanislav Meduna
2014-02-17 19:18 ` Greg KH [this message]
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