From: Rusty Russell <rusty@rustcorp.com.au>
To: monstr@monstr.eu, Jens Axboe <axboe@kernel.dk>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: scatterlist: sg_set_buf() argument must be in linear mapping (sha1: ac4e97abce9b80c020e7113325f49e58b7b15e3f)
Date: Mon, 22 Jul 2013 11:17:40 +0930 [thread overview]
Message-ID: <87siz7xt4z.fsf@rustcorp.com.au> (raw)
In-Reply-To: <51E64C6B.3080306@monstr.eu>
Michal Simek <monstr@monstr.eu> writes:
> Hi Rusty and Jens,
>
> I am getting problem with your patch which you have added to the kernel.
> The problem is with my arm zynq remoteproc driver where
> I use dma_declare_coherent_memory() to specify memory for remoteproc
> which is ioremap to the vmalloc area.
>
> Based on that buf addr is not inside ram even this coherent memory is in ram.
> That's why virt_addr_valid(buf) is failing.
But sg_set_buf() calls virt_to_page(buf). So does that work?
I would think calling sg_set_page() directly would be what you want
here...
Cheers,
Rusty.
next prev parent reply other threads:[~2013-07-22 3:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-17 7:48 scatterlist: sg_set_buf() argument must be in linear mapping (sha1: ac4e97abce9b80c020e7113325f49e58b7b15e3f) Michal Simek
2013-07-22 1:47 ` Rusty Russell [this message]
2013-07-22 12:58 ` Michal Simek
2013-07-23 2:30 ` Rusty Russell
2013-07-23 10:37 ` Russell King - ARM Linux
2013-07-23 12:12 ` Michal Simek
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